Re: 2b5d1c29f6c4 ("drm/nouveau/disp: PIOR DP uses GPIO for HPD, not PMGR AUX interrupts")
On Mon, 14 Aug 2023 17:06:02 +0200, Takashi Iwai wrote: > > On Mon, 14 Aug 2023 16:51:08 +0200, > Karol Herbst wrote: > > > > I've sent a patch out to address this memory corruption > > https://patchwork.freedesktop.org/patch/552642/ > > > > It might or might not fix regressions from the original I2C fix, so > > please test and report if there are remaining issues. > > Thanks! I'll build a test kernel and ask the reporter for testing > with it. Let's cross fingers :) The feedback is positive, so far. It seems fixing the regression reported for 6.4.8 kernel. thanks, Takashi
Re: 2b5d1c29f6c4 ("drm/nouveau/disp: PIOR DP uses GPIO for HPD, not PMGR AUX interrupts")
On Mon, 14 Aug 2023 16:51:08 +0200, Karol Herbst wrote: > > I've sent a patch out to address this memory corruption > https://patchwork.freedesktop.org/patch/552642/ > > It might or might not fix regressions from the original I2C fix, so > please test and report if there are remaining issues. Thanks! I'll build a test kernel and ask the reporter for testing with it. Let's cross fingers :) Takashi
Re: 2b5d1c29f6c4 ("drm/nouveau/disp: PIOR DP uses GPIO for HPD, not PMGR AUX interrupts")
On Mon, Aug 14, 2023 at 4:19 PM Karol Herbst wrote: > > On Mon, Aug 14, 2023 at 3:35 PM Takashi Iwai wrote: > > > > On Mon, 14 Aug 2023 15:19:11 +0200, > > Karol Herbst wrote: > > > > > > On Mon, Aug 14, 2023 at 2:56 PM Karol Herbst wrote: > > > > > > > > On Mon, Aug 14, 2023 at 2:48 PM Takashi Iwai wrote: > > > > > > > > > > On Mon, 14 Aug 2023 14:38:18 +0200, > > > > > Karol Herbst wrote: > > > > > > > > > > > > On Wed, Aug 9, 2023 at 6:16 PM Takashi Iwai wrote: > > > > > > > > > > > > > > On Wed, 09 Aug 2023 16:46:38 +0200, > > > > > > > Takashi Iwai wrote: > > > > > > > > > > > > > > > > On Wed, 09 Aug 2023 15:13:23 +0200, > > > > > > > > Takashi Iwai wrote: > > > > > > > > > > > > > > > > > > On Wed, 09 Aug 2023 14:19:23 +0200, > > > > > > > > > Karol Herbst wrote: > > > > > > > > > > > > > > > > > > > > On Wed, Aug 9, 2023 at 1:46 PM Takashi Iwai > > > > > > > > > > wrote: > > > > > > > > > > > > > > > > > > > > > > On Wed, 09 Aug 2023 13:42:09 +0200, > > > > > > > > > > > Karol Herbst wrote: > > > > > > > > > > > > > > > > > > > > > > > > On Wed, Aug 9, 2023 at 11:22 AM Takashi Iwai > > > > > > > > > > > > wrote: > > > > > > > > > > > > > > > > > > > > > > > > > > On Tue, 08 Aug 2023 12:39:32 +0200, > > > > > > > > > > > > > Karol Herbst wrote: > > > > > > > > > > > > > > > > > > > > > > > > > > > > On Mon, Aug 7, 2023 at 5:05 PM Borislav Petkov > > > > > > > > > > > > > > wrote: > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > On Mon, Aug 07, 2023 at 01:49:42PM +0200, Karol > > > > > > > > > > > > > > > Herbst wrote: > > > > > > > > > > > > > > > > in what way does it stop? Just not progressing? > > > > > > > > > > > > > > > > That would be kinda > > > > > > > > > > > > > > > > concerning. Mind tracing with what arguments > > > > > > > > > > > > > > > > `nvkm_uevent_add` is > > > > > > > > > > > > > > > > called with and without that patch? > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > Well, me dumping those args I guess made the box > > > > > > > > > > > > > > > not freeze before > > > > > > > > > > > > > > > catching a #PF over serial. Does that help? > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > [3.410135] Unpacking initramfs... > > > > > > > > > > > > > > > [3.416319] software IO TLB: mapped [mem > > > > > > > > > > > > > > > 0xa877d000-0xac77d000] (64MB) > > > > > > > > > > > > > > > [3.418227] Initialise system trusted keyrings > > > > > > > > > > > > > > > [3.432273] workingset: timestamp_bits=56 > > > > > > > > > > > > > > > max_order=22 bucket_order=0 > > > > > > > > > > > > > > > [3.439006] ntfs: driver 2.1.32 [Flags: R/W]. > > > > > > > > > > > > > > > [3.443368] fuse: init (API version 7.38) > > > > > > > > > > > > > > > [3.447601] 9p: Installing v9fs 9p2000 file > > > > > > > > > > > > > > > system support > > > > > > > > > > > > > > > [3.453223] Key type asymmetric registered > > > > > > > > > > > > > > > [3.457332] Asymmetric key parser 'x509' > > > > > > > > > > > > > > > registered > > > > > > > > > > > > > > > [3.462236] Block layer SCSI generic (bsg) > > > > > > > > > > > > > > > driver version 0.4 loaded (major 250) > > > > > > > > > > > > > > > [3.475865] efifb: probing for efifb > > > > > > > > > > > > > > > [3.479458] efifb: framebuffer at 0xf900, > > > > > > > > > > > > > > > using 1920k, total 1920k > > > > > > > > > > > > > > > [3.485969] efifb: mode is 800x600x32, > > > > > > > > > > > > > > > linelength=3200, pages=1 > > > > > > > > > > > > > > > [3.491872] efifb: scrolling: redraw > > > > > > > > > > > > > > > [3.495438] efifb: Truecolor: size=8:8:8:8, > > > > > > > > > > > > > > > shift=24:16:8:0 > > > > > > > > > > > > > > > [3.502349] Console: switching to colour frame > > > > > > > > > > > > > > > buffer device 100x37 > > > > > > > > > > > > > > > [3.509564] fb0: EFI VGA frame buffer device > > > > > > > > > > > > > > > [3.514013] ACPI: \_PR_.CP00: Found 4 idle > > > > > > > > > > > > > > > states > > > > > > > > > > > > > > > [3.518850] ACPI: \_PR_.CP01: Found 4 idle > > > > > > > > > > > > > > > states > > > > > > > > > > > > > > > [3.523687] ACPI: \_PR_.CP02: Found 4 idle > > > > > > > > > > > > > > > states > > > > > > > > > > > > > > > [3.528515] ACPI: \_PR_.CP03: Found 4 idle > > > > > > > > > > > > > > > states > > > > > > > > > > > > > > > [3.533346] ACPI: \_PR_.CP04: Found 4 idle > > > > > > > > > > > > > > > states > > > > > > > > > > > > > > > [3.538173] ACPI: \_PR_.CP05: Found 4 idle > > > > > > > > > > > > > > > states > > > > > > > > > > > > > > > [3.543003] ACPI: \_PR_.CP06: Found 4 idle > > > > > > > > > > > > > > > states > > > > > > > > > > > > > > > [3.544219] Freeing initrd memory: 8196K > > > > > > > > > > > > > > > [3.547844] ACPI: \_PR_.CP07: Found 4 idle > > > > > > > > > > > > > > > states > > > > > > > > > > > > >
Re: 2b5d1c29f6c4 ("drm/nouveau/disp: PIOR DP uses GPIO for HPD, not PMGR AUX interrupts")
On Mon, Aug 14, 2023 at 3:35 PM Takashi Iwai wrote: > > On Mon, 14 Aug 2023 15:19:11 +0200, > Karol Herbst wrote: > > > > On Mon, Aug 14, 2023 at 2:56 PM Karol Herbst wrote: > > > > > > On Mon, Aug 14, 2023 at 2:48 PM Takashi Iwai wrote: > > > > > > > > On Mon, 14 Aug 2023 14:38:18 +0200, > > > > Karol Herbst wrote: > > > > > > > > > > On Wed, Aug 9, 2023 at 6:16 PM Takashi Iwai wrote: > > > > > > > > > > > > On Wed, 09 Aug 2023 16:46:38 +0200, > > > > > > Takashi Iwai wrote: > > > > > > > > > > > > > > On Wed, 09 Aug 2023 15:13:23 +0200, > > > > > > > Takashi Iwai wrote: > > > > > > > > > > > > > > > > On Wed, 09 Aug 2023 14:19:23 +0200, > > > > > > > > Karol Herbst wrote: > > > > > > > > > > > > > > > > > > On Wed, Aug 9, 2023 at 1:46 PM Takashi Iwai > > > > > > > > > wrote: > > > > > > > > > > > > > > > > > > > > On Wed, 09 Aug 2023 13:42:09 +0200, > > > > > > > > > > Karol Herbst wrote: > > > > > > > > > > > > > > > > > > > > > > On Wed, Aug 9, 2023 at 11:22 AM Takashi Iwai > > > > > > > > > > > wrote: > > > > > > > > > > > > > > > > > > > > > > > > On Tue, 08 Aug 2023 12:39:32 +0200, > > > > > > > > > > > > Karol Herbst wrote: > > > > > > > > > > > > > > > > > > > > > > > > > > On Mon, Aug 7, 2023 at 5:05 PM Borislav Petkov > > > > > > > > > > > > > wrote: > > > > > > > > > > > > > > > > > > > > > > > > > > > > On Mon, Aug 07, 2023 at 01:49:42PM +0200, Karol > > > > > > > > > > > > > > Herbst wrote: > > > > > > > > > > > > > > > in what way does it stop? Just not progressing? > > > > > > > > > > > > > > > That would be kinda > > > > > > > > > > > > > > > concerning. Mind tracing with what arguments > > > > > > > > > > > > > > > `nvkm_uevent_add` is > > > > > > > > > > > > > > > called with and without that patch? > > > > > > > > > > > > > > > > > > > > > > > > > > > > Well, me dumping those args I guess made the box > > > > > > > > > > > > > > not freeze before > > > > > > > > > > > > > > catching a #PF over serial. Does that help? > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > [3.410135] Unpacking initramfs... > > > > > > > > > > > > > > [3.416319] software IO TLB: mapped [mem > > > > > > > > > > > > > > 0xa877d000-0xac77d000] (64MB) > > > > > > > > > > > > > > [3.418227] Initialise system trusted keyrings > > > > > > > > > > > > > > [3.432273] workingset: timestamp_bits=56 > > > > > > > > > > > > > > max_order=22 bucket_order=0 > > > > > > > > > > > > > > [3.439006] ntfs: driver 2.1.32 [Flags: R/W]. > > > > > > > > > > > > > > [3.443368] fuse: init (API version 7.38) > > > > > > > > > > > > > > [3.447601] 9p: Installing v9fs 9p2000 file > > > > > > > > > > > > > > system support > > > > > > > > > > > > > > [3.453223] Key type asymmetric registered > > > > > > > > > > > > > > [3.457332] Asymmetric key parser 'x509' > > > > > > > > > > > > > > registered > > > > > > > > > > > > > > [3.462236] Block layer SCSI generic (bsg) > > > > > > > > > > > > > > driver version 0.4 loaded (major 250) > > > > > > > > > > > > > > [3.475865] efifb: probing for efifb > > > > > > > > > > > > > > [3.479458] efifb: framebuffer at 0xf900, > > > > > > > > > > > > > > using 1920k, total 1920k > > > > > > > > > > > > > > [3.485969] efifb: mode is 800x600x32, > > > > > > > > > > > > > > linelength=3200, pages=1 > > > > > > > > > > > > > > [3.491872] efifb: scrolling: redraw > > > > > > > > > > > > > > [3.495438] efifb: Truecolor: size=8:8:8:8, > > > > > > > > > > > > > > shift=24:16:8:0 > > > > > > > > > > > > > > [3.502349] Console: switching to colour frame > > > > > > > > > > > > > > buffer device 100x37 > > > > > > > > > > > > > > [3.509564] fb0: EFI VGA frame buffer device > > > > > > > > > > > > > > [3.514013] ACPI: \_PR_.CP00: Found 4 idle states > > > > > > > > > > > > > > [3.518850] ACPI: \_PR_.CP01: Found 4 idle states > > > > > > > > > > > > > > [3.523687] ACPI: \_PR_.CP02: Found 4 idle states > > > > > > > > > > > > > > [3.528515] ACPI: \_PR_.CP03: Found 4 idle states > > > > > > > > > > > > > > [3.533346] ACPI: \_PR_.CP04: Found 4 idle states > > > > > > > > > > > > > > [3.538173] ACPI: \_PR_.CP05: Found 4 idle states > > > > > > > > > > > > > > [3.543003] ACPI: \_PR_.CP06: Found 4 idle states > > > > > > > > > > > > > > [3.544219] Freeing initrd memory: 8196K > > > > > > > > > > > > > > [3.547844] ACPI: \_PR_.CP07: Found 4 idle states > > > > > > > > > > > > > > [3.609542] Serial: 8250/16550 driver, 4 ports, > > > > > > > > > > > > > > IRQ sharing enabled > > > > > > > > > > > > > > [3.616224] 00:05: ttyS0 at I/O 0x3f8 (irq = 4, > > > > > > > > > > > > > > base_baud = 115200) is a 16550A > > > > > > > > > > > > > > [3.625552] serial :00:16.3: enabling device > > > > > > > > > > > > > > ( -> 0003) > > > > > > > > > > > > > > [3.633034] :00:16.3: ttyS1 at I/O 0xf0a0 > > > > > > > > > > > > > >
Re: 2b5d1c29f6c4 ("drm/nouveau/disp: PIOR DP uses GPIO for HPD, not PMGR AUX interrupts")
On Mon, 14 Aug 2023 15:19:11 +0200, Karol Herbst wrote: > > On Mon, Aug 14, 2023 at 2:56 PM Karol Herbst wrote: > > > > On Mon, Aug 14, 2023 at 2:48 PM Takashi Iwai wrote: > > > > > > On Mon, 14 Aug 2023 14:38:18 +0200, > > > Karol Herbst wrote: > > > > > > > > On Wed, Aug 9, 2023 at 6:16 PM Takashi Iwai wrote: > > > > > > > > > > On Wed, 09 Aug 2023 16:46:38 +0200, > > > > > Takashi Iwai wrote: > > > > > > > > > > > > On Wed, 09 Aug 2023 15:13:23 +0200, > > > > > > Takashi Iwai wrote: > > > > > > > > > > > > > > On Wed, 09 Aug 2023 14:19:23 +0200, > > > > > > > Karol Herbst wrote: > > > > > > > > > > > > > > > > On Wed, Aug 9, 2023 at 1:46 PM Takashi Iwai > > > > > > > > wrote: > > > > > > > > > > > > > > > > > > On Wed, 09 Aug 2023 13:42:09 +0200, > > > > > > > > > Karol Herbst wrote: > > > > > > > > > > > > > > > > > > > > On Wed, Aug 9, 2023 at 11:22 AM Takashi Iwai > > > > > > > > > > wrote: > > > > > > > > > > > > > > > > > > > > > > On Tue, 08 Aug 2023 12:39:32 +0200, > > > > > > > > > > > Karol Herbst wrote: > > > > > > > > > > > > > > > > > > > > > > > > On Mon, Aug 7, 2023 at 5:05 PM Borislav Petkov > > > > > > > > > > > > wrote: > > > > > > > > > > > > > > > > > > > > > > > > > > On Mon, Aug 07, 2023 at 01:49:42PM +0200, Karol > > > > > > > > > > > > > Herbst wrote: > > > > > > > > > > > > > > in what way does it stop? Just not progressing? > > > > > > > > > > > > > > That would be kinda > > > > > > > > > > > > > > concerning. Mind tracing with what arguments > > > > > > > > > > > > > > `nvkm_uevent_add` is > > > > > > > > > > > > > > called with and without that patch? > > > > > > > > > > > > > > > > > > > > > > > > > > Well, me dumping those args I guess made the box not > > > > > > > > > > > > > freeze before > > > > > > > > > > > > > catching a #PF over serial. Does that help? > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > [3.410135] Unpacking initramfs... > > > > > > > > > > > > > [3.416319] software IO TLB: mapped [mem > > > > > > > > > > > > > 0xa877d000-0xac77d000] (64MB) > > > > > > > > > > > > > [3.418227] Initialise system trusted keyrings > > > > > > > > > > > > > [3.432273] workingset: timestamp_bits=56 > > > > > > > > > > > > > max_order=22 bucket_order=0 > > > > > > > > > > > > > [3.439006] ntfs: driver 2.1.32 [Flags: R/W]. > > > > > > > > > > > > > [3.443368] fuse: init (API version 7.38) > > > > > > > > > > > > > [3.447601] 9p: Installing v9fs 9p2000 file system > > > > > > > > > > > > > support > > > > > > > > > > > > > [3.453223] Key type asymmetric registered > > > > > > > > > > > > > [3.457332] Asymmetric key parser 'x509' registered > > > > > > > > > > > > > [3.462236] Block layer SCSI generic (bsg) driver > > > > > > > > > > > > > version 0.4 loaded (major 250) > > > > > > > > > > > > > [3.475865] efifb: probing for efifb > > > > > > > > > > > > > [3.479458] efifb: framebuffer at 0xf900, > > > > > > > > > > > > > using 1920k, total 1920k > > > > > > > > > > > > > [3.485969] efifb: mode is 800x600x32, > > > > > > > > > > > > > linelength=3200, pages=1 > > > > > > > > > > > > > [3.491872] efifb: scrolling: redraw > > > > > > > > > > > > > [3.495438] efifb: Truecolor: size=8:8:8:8, > > > > > > > > > > > > > shift=24:16:8:0 > > > > > > > > > > > > > [3.502349] Console: switching to colour frame > > > > > > > > > > > > > buffer device 100x37 > > > > > > > > > > > > > [3.509564] fb0: EFI VGA frame buffer device > > > > > > > > > > > > > [3.514013] ACPI: \_PR_.CP00: Found 4 idle states > > > > > > > > > > > > > [3.518850] ACPI: \_PR_.CP01: Found 4 idle states > > > > > > > > > > > > > [3.523687] ACPI: \_PR_.CP02: Found 4 idle states > > > > > > > > > > > > > [3.528515] ACPI: \_PR_.CP03: Found 4 idle states > > > > > > > > > > > > > [3.533346] ACPI: \_PR_.CP04: Found 4 idle states > > > > > > > > > > > > > [3.538173] ACPI: \_PR_.CP05: Found 4 idle states > > > > > > > > > > > > > [3.543003] ACPI: \_PR_.CP06: Found 4 idle states > > > > > > > > > > > > > [3.544219] Freeing initrd memory: 8196K > > > > > > > > > > > > > [3.547844] ACPI: \_PR_.CP07: Found 4 idle states > > > > > > > > > > > > > [3.609542] Serial: 8250/16550 driver, 4 ports, > > > > > > > > > > > > > IRQ sharing enabled > > > > > > > > > > > > > [3.616224] 00:05: ttyS0 at I/O 0x3f8 (irq = 4, > > > > > > > > > > > > > base_baud = 115200) is a 16550A > > > > > > > > > > > > > [3.625552] serial :00:16.3: enabling device > > > > > > > > > > > > > ( -> 0003) > > > > > > > > > > > > > [3.633034] :00:16.3: ttyS1 at I/O 0xf0a0 (irq > > > > > > > > > > > > > = 17, base_baud = 115200) is a 16550A > > > > > > > > > > > > > [3.642451] Linux agpgart interface v0.103 > > > > > > > > > > > > > [3.647141] ACPI: bus type drm_connector registered > > > > > > > > > > > > > [3.653261] Console: switching to colour
Re: 2b5d1c29f6c4 ("drm/nouveau/disp: PIOR DP uses GPIO for HPD, not PMGR AUX interrupts")
On Tue, Aug 8, 2023 at 3:47 PM Borislav Petkov wrote:
>
> On Tue, Aug 08, 2023 at 12:39:32PM +0200, Karol Herbst wrote:
> > ahh, that would have been good to know :)
>
> Yeah, I didn't see it before - it would only freeze. Only after I added
> the printk you requested.
>
> > Mind figuring out what's exactly NULL inside nvif_object_mthd? Or
> > rather what line `nvif_object_mthd+0x136` belongs to, then it should
> > be easy to figure out what's wrong here.
>
> That looks like this:
>
> 816ddfee: e8 8d 04 4e 00 callq 81bbe480
> <__memcpy>
> 816ddff3: 41 8d 56 20 lea0x20(%r14),%edx
> 816ddff7: 49 8b 44 24 08 mov0x8(%r12),%rax
> 816ddffc: 83 fa 17cmp$0x17,%edx
> 816ddfff: 76 7d jbe816de07e
>
> 816de001: 49 39 c4cmp%rax,%r12
> 816de004: 74 45 je 816de04b
>
>
> <--- RIP points here.
>
> The 0x20 also fits the deref address: 0020.
>
> Which means %rax is 0. Yap.
>
> 816de006: 48 8b 78 20 mov0x20(%rax),%rdi
> 816de00a: 4c 89 64 24 10 mov%r12,0x10(%rsp)
> 816de00f: 48 8b 40 38 mov0x38(%rax),%rax
> 816de013: c6 44 24 06 ff movb $0xff,0x6(%rsp)
> 816de018: 31 c9 xor%ecx,%ecx
> 816de01a: 48 89 e6mov%rsp,%rsi
> 816de01d: 48 8b 40 28 mov0x28(%rax),%rax
> 816de021: e8 3a 0c 4f 00 callq 81bcec60
> <__x86_indirect_thunk_array>
>
>
> Now, the preprocessed asm version of nvif/object.c says around here:
>
>
> callmemcpy #
> # drivers/gpu/drm/nouveau/nvif/object.c:160:ret =
> nvif_object_ioctl(object, args, sizeof(*args) + size, NULL);
> leal32(%r14), %edx #, _108
> # drivers/gpu/drm/nouveau/nvif/object.c:33: struct nvif_client *client =
> object->client;
> movq8(%r12), %rax # object_19(D)->client, client
> # drivers/gpu/drm/nouveau/nvif/object.c:38: if (size >= sizeof(*args) &&
> args->v0.version == 0) {
> cmpl$23, %edx #, _108
> jbe .L69#,
> # drivers/gpu/drm/nouveau/nvif/object.c:39: if (object !=
> >object)
> cmpq%rax, %r12 # client, object
> je .L70#,
> # drivers/gpu/drm/nouveau/nvif/object.c:47: return
> client->driver->ioctl(client->object.priv, data, size, hack);
> movq32(%rax), %rdi # client_109->object.priv,
> client_109->object.priv
>
>
> So I'd say that client is NULL. IINM.
>
>
> movq%r12, 16(%rsp) # object, MEM[(union *)].v0.object
> # drivers/gpu/drm/nouveau/nvif/object.c:47: return
> client->driver->ioctl(client->object.priv, data, size, hack);
> movq56(%rax), %rax # client_109->driver, client_109->driver
> # drivers/gpu/drm/nouveau/nvif/object.c:43: args->v0.owner =
> NVIF_IOCTL_V0_OWNER_ANY;
> movb$-1, 6(%rsp)#, MEM[(union *)].v0.owner
> .L64:
> # drivers/gpu/drm/nouveau/nvif/object.c:47: return
> client->driver->ioctl(client->object.priv, data, size, hack);
> xorl%ecx, %ecx #
> movq%rsp, %rsi #,
> movq40(%rax), %rax #, _77->ioctl
> call__x86_indirect_thunk_rax
> # drivers/gpu/drm/nouveau/nvif/object.c:161:memcpy(data, args->mthd.data,
> size);
>
> > > [4.144676] #PF: supervisor read access in kernel mode
> > > [4.144676] #PF: error_code(0x) - not-present page
> > > [4.144676] PGD 0 P4D 0
> > > [4.144676] Oops: [#1] PREEMPT SMP PTI
> > > [4.144676] CPU: 2 PID: 1 Comm: swapper/0 Not tainted 6.5.0-rc5-dirty
> > > #1
> > > [4.144676] Hardware name: Dell Inc. Precision T3600/0PTTT9, BIOS A13
> > > 05/11/2014
> > > [4.144676] RIP: 0010:nvif_object_mthd+0x136/0x1e0
> > > [4.144676] Code: f2 4c 89 ee 48 8d 7c 24 20 66 89 04 24 c6 44 24 18
> > > 00 e8 8d 04 4e 00 41 8d 56 20 49 8b 44 24 08 83 fa 17 76 7d 49 39 c4 74
> > > 45 <48> 8b 78 20 4c 89 64 24 10 48 8b 40 38 c6 44 24 06 ff 31 c9 48 89
>
> Opcode bytes around RIP look correct too:
>
> ./scripts/decodecode < /tmp/oops
> [ 4.144676] Code: f2 4c 89 ee 48 8d 7c 24 20 66 89 04 24 c6 44 24 18 00 e8 8d
> 04 4e 00 41 8d 56 20 49 8b 44 24 08 83 fa 17 76 7d 49 39 c4 74 45 <48> 8b 78
> 20 4c 89 64 24 10 48 8b 40 38 c6 44 24 06 ff 31 c9 48 89
> All code
>
>0: f2 4c 89 ee repnz mov %r13,%rsi
>4: 48 8d 7c 24 20 lea0x20(%rsp),%rdi
>9: 66 89 04 24 mov%ax,(%rsp)
>d: c6 44 24 18 00 movb $0x0,0x18(%rsp)
> 12: e8 8d 04 4e 00 callq 0x4e04a4
> 17: 41 8d 56 20 lea0x20(%r14),%edx
> 1b: 49 8b 44 24 08 mov0x8(%r12),%rax
> 20:
Re: 2b5d1c29f6c4 ("drm/nouveau/disp: PIOR DP uses GPIO for HPD, not PMGR AUX interrupts")
On Mon, Aug 14, 2023 at 2:56 PM Karol Herbst wrote: > > On Mon, Aug 14, 2023 at 2:48 PM Takashi Iwai wrote: > > > > On Mon, 14 Aug 2023 14:38:18 +0200, > > Karol Herbst wrote: > > > > > > On Wed, Aug 9, 2023 at 6:16 PM Takashi Iwai wrote: > > > > > > > > On Wed, 09 Aug 2023 16:46:38 +0200, > > > > Takashi Iwai wrote: > > > > > > > > > > On Wed, 09 Aug 2023 15:13:23 +0200, > > > > > Takashi Iwai wrote: > > > > > > > > > > > > On Wed, 09 Aug 2023 14:19:23 +0200, > > > > > > Karol Herbst wrote: > > > > > > > > > > > > > > On Wed, Aug 9, 2023 at 1:46 PM Takashi Iwai wrote: > > > > > > > > > > > > > > > > On Wed, 09 Aug 2023 13:42:09 +0200, > > > > > > > > Karol Herbst wrote: > > > > > > > > > > > > > > > > > > On Wed, Aug 9, 2023 at 11:22 AM Takashi Iwai > > > > > > > > > wrote: > > > > > > > > > > > > > > > > > > > > On Tue, 08 Aug 2023 12:39:32 +0200, > > > > > > > > > > Karol Herbst wrote: > > > > > > > > > > > > > > > > > > > > > > On Mon, Aug 7, 2023 at 5:05 PM Borislav Petkov > > > > > > > > > > > wrote: > > > > > > > > > > > > > > > > > > > > > > > > On Mon, Aug 07, 2023 at 01:49:42PM +0200, Karol Herbst > > > > > > > > > > > > wrote: > > > > > > > > > > > > > in what way does it stop? Just not progressing? That > > > > > > > > > > > > > would be kinda > > > > > > > > > > > > > concerning. Mind tracing with what arguments > > > > > > > > > > > > > `nvkm_uevent_add` is > > > > > > > > > > > > > called with and without that patch? > > > > > > > > > > > > > > > > > > > > > > > > Well, me dumping those args I guess made the box not > > > > > > > > > > > > freeze before > > > > > > > > > > > > catching a #PF over serial. Does that help? > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > [3.410135] Unpacking initramfs... > > > > > > > > > > > > [3.416319] software IO TLB: mapped [mem > > > > > > > > > > > > 0xa877d000-0xac77d000] (64MB) > > > > > > > > > > > > [3.418227] Initialise system trusted keyrings > > > > > > > > > > > > [3.432273] workingset: timestamp_bits=56 > > > > > > > > > > > > max_order=22 bucket_order=0 > > > > > > > > > > > > [3.439006] ntfs: driver 2.1.32 [Flags: R/W]. > > > > > > > > > > > > [3.443368] fuse: init (API version 7.38) > > > > > > > > > > > > [3.447601] 9p: Installing v9fs 9p2000 file system > > > > > > > > > > > > support > > > > > > > > > > > > [3.453223] Key type asymmetric registered > > > > > > > > > > > > [3.457332] Asymmetric key parser 'x509' registered > > > > > > > > > > > > [3.462236] Block layer SCSI generic (bsg) driver > > > > > > > > > > > > version 0.4 loaded (major 250) > > > > > > > > > > > > [3.475865] efifb: probing for efifb > > > > > > > > > > > > [3.479458] efifb: framebuffer at 0xf900, using > > > > > > > > > > > > 1920k, total 1920k > > > > > > > > > > > > [3.485969] efifb: mode is 800x600x32, > > > > > > > > > > > > linelength=3200, pages=1 > > > > > > > > > > > > [3.491872] efifb: scrolling: redraw > > > > > > > > > > > > [3.495438] efifb: Truecolor: size=8:8:8:8, > > > > > > > > > > > > shift=24:16:8:0 > > > > > > > > > > > > [3.502349] Console: switching to colour frame > > > > > > > > > > > > buffer device 100x37 > > > > > > > > > > > > [3.509564] fb0: EFI VGA frame buffer device > > > > > > > > > > > > [3.514013] ACPI: \_PR_.CP00: Found 4 idle states > > > > > > > > > > > > [3.518850] ACPI: \_PR_.CP01: Found 4 idle states > > > > > > > > > > > > [3.523687] ACPI: \_PR_.CP02: Found 4 idle states > > > > > > > > > > > > [3.528515] ACPI: \_PR_.CP03: Found 4 idle states > > > > > > > > > > > > [3.533346] ACPI: \_PR_.CP04: Found 4 idle states > > > > > > > > > > > > [3.538173] ACPI: \_PR_.CP05: Found 4 idle states > > > > > > > > > > > > [3.543003] ACPI: \_PR_.CP06: Found 4 idle states > > > > > > > > > > > > [3.544219] Freeing initrd memory: 8196K > > > > > > > > > > > > [3.547844] ACPI: \_PR_.CP07: Found 4 idle states > > > > > > > > > > > > [3.609542] Serial: 8250/16550 driver, 4 ports, IRQ > > > > > > > > > > > > sharing enabled > > > > > > > > > > > > [3.616224] 00:05: ttyS0 at I/O 0x3f8 (irq = 4, > > > > > > > > > > > > base_baud = 115200) is a 16550A > > > > > > > > > > > > [3.625552] serial :00:16.3: enabling device > > > > > > > > > > > > ( -> 0003) > > > > > > > > > > > > [3.633034] :00:16.3: ttyS1 at I/O 0xf0a0 (irq = > > > > > > > > > > > > 17, base_baud = 115200) is a 16550A > > > > > > > > > > > > [3.642451] Linux agpgart interface v0.103 > > > > > > > > > > > > [3.647141] ACPI: bus type drm_connector registered > > > > > > > > > > > > [3.653261] Console: switching to colour dummy > > > > > > > > > > > > device 80x25 > > > > > > > > > > > > [3.659092] nouveau :03:00.0: vgaarb: deactivate > > > > > > > > > > > > vga console > > > > > > > > > > > > [3.665174] nouveau :03:00.0: NVIDIA GT218 > > > > > > > > > > >
Re: 2b5d1c29f6c4 ("drm/nouveau/disp: PIOR DP uses GPIO for HPD, not PMGR AUX interrupts")
On Mon, Aug 14, 2023 at 2:48 PM Takashi Iwai wrote: > > On Mon, 14 Aug 2023 14:38:18 +0200, > Karol Herbst wrote: > > > > On Wed, Aug 9, 2023 at 6:16 PM Takashi Iwai wrote: > > > > > > On Wed, 09 Aug 2023 16:46:38 +0200, > > > Takashi Iwai wrote: > > > > > > > > On Wed, 09 Aug 2023 15:13:23 +0200, > > > > Takashi Iwai wrote: > > > > > > > > > > On Wed, 09 Aug 2023 14:19:23 +0200, > > > > > Karol Herbst wrote: > > > > > > > > > > > > On Wed, Aug 9, 2023 at 1:46 PM Takashi Iwai wrote: > > > > > > > > > > > > > > On Wed, 09 Aug 2023 13:42:09 +0200, > > > > > > > Karol Herbst wrote: > > > > > > > > > > > > > > > > On Wed, Aug 9, 2023 at 11:22 AM Takashi Iwai > > > > > > > > wrote: > > > > > > > > > > > > > > > > > > On Tue, 08 Aug 2023 12:39:32 +0200, > > > > > > > > > Karol Herbst wrote: > > > > > > > > > > > > > > > > > > > > On Mon, Aug 7, 2023 at 5:05 PM Borislav Petkov > > > > > > > > > > wrote: > > > > > > > > > > > > > > > > > > > > > > On Mon, Aug 07, 2023 at 01:49:42PM +0200, Karol Herbst > > > > > > > > > > > wrote: > > > > > > > > > > > > in what way does it stop? Just not progressing? That > > > > > > > > > > > > would be kinda > > > > > > > > > > > > concerning. Mind tracing with what arguments > > > > > > > > > > > > `nvkm_uevent_add` is > > > > > > > > > > > > called with and without that patch? > > > > > > > > > > > > > > > > > > > > > > Well, me dumping those args I guess made the box not > > > > > > > > > > > freeze before > > > > > > > > > > > catching a #PF over serial. Does that help? > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > [3.410135] Unpacking initramfs... > > > > > > > > > > > [3.416319] software IO TLB: mapped [mem > > > > > > > > > > > 0xa877d000-0xac77d000] (64MB) > > > > > > > > > > > [3.418227] Initialise system trusted keyrings > > > > > > > > > > > [3.432273] workingset: timestamp_bits=56 max_order=22 > > > > > > > > > > > bucket_order=0 > > > > > > > > > > > [3.439006] ntfs: driver 2.1.32 [Flags: R/W]. > > > > > > > > > > > [3.443368] fuse: init (API version 7.38) > > > > > > > > > > > [3.447601] 9p: Installing v9fs 9p2000 file system > > > > > > > > > > > support > > > > > > > > > > > [3.453223] Key type asymmetric registered > > > > > > > > > > > [3.457332] Asymmetric key parser 'x509' registered > > > > > > > > > > > [3.462236] Block layer SCSI generic (bsg) driver > > > > > > > > > > > version 0.4 loaded (major 250) > > > > > > > > > > > [3.475865] efifb: probing for efifb > > > > > > > > > > > [3.479458] efifb: framebuffer at 0xf900, using > > > > > > > > > > > 1920k, total 1920k > > > > > > > > > > > [3.485969] efifb: mode is 800x600x32, > > > > > > > > > > > linelength=3200, pages=1 > > > > > > > > > > > [3.491872] efifb: scrolling: redraw > > > > > > > > > > > [3.495438] efifb: Truecolor: size=8:8:8:8, > > > > > > > > > > > shift=24:16:8:0 > > > > > > > > > > > [3.502349] Console: switching to colour frame buffer > > > > > > > > > > > device 100x37 > > > > > > > > > > > [3.509564] fb0: EFI VGA frame buffer device > > > > > > > > > > > [3.514013] ACPI: \_PR_.CP00: Found 4 idle states > > > > > > > > > > > [3.518850] ACPI: \_PR_.CP01: Found 4 idle states > > > > > > > > > > > [3.523687] ACPI: \_PR_.CP02: Found 4 idle states > > > > > > > > > > > [3.528515] ACPI: \_PR_.CP03: Found 4 idle states > > > > > > > > > > > [3.533346] ACPI: \_PR_.CP04: Found 4 idle states > > > > > > > > > > > [3.538173] ACPI: \_PR_.CP05: Found 4 idle states > > > > > > > > > > > [3.543003] ACPI: \_PR_.CP06: Found 4 idle states > > > > > > > > > > > [3.544219] Freeing initrd memory: 8196K > > > > > > > > > > > [3.547844] ACPI: \_PR_.CP07: Found 4 idle states > > > > > > > > > > > [3.609542] Serial: 8250/16550 driver, 4 ports, IRQ > > > > > > > > > > > sharing enabled > > > > > > > > > > > [3.616224] 00:05: ttyS0 at I/O 0x3f8 (irq = 4, > > > > > > > > > > > base_baud = 115200) is a 16550A > > > > > > > > > > > [3.625552] serial :00:16.3: enabling device ( > > > > > > > > > > > -> 0003) > > > > > > > > > > > [3.633034] :00:16.3: ttyS1 at I/O 0xf0a0 (irq = > > > > > > > > > > > 17, base_baud = 115200) is a 16550A > > > > > > > > > > > [3.642451] Linux agpgart interface v0.103 > > > > > > > > > > > [3.647141] ACPI: bus type drm_connector registered > > > > > > > > > > > [3.653261] Console: switching to colour dummy device > > > > > > > > > > > 80x25 > > > > > > > > > > > [3.659092] nouveau :03:00.0: vgaarb: deactivate > > > > > > > > > > > vga console > > > > > > > > > > > [3.665174] nouveau :03:00.0: NVIDIA GT218 > > > > > > > > > > > (0a8c00b1) > > > > > > > > > > > [3.784585] nouveau :03:00.0: bios: version > > > > > > > > > > > 70.18.83.00.08 > > > > > > > > > > > [3.792244] nouveau :03:00.0: fb: 512 MiB DDR3 > > > > > > > > > > > [3.948786]
Re: 2b5d1c29f6c4 ("drm/nouveau/disp: PIOR DP uses GPIO for HPD, not PMGR AUX interrupts")
On Mon, 14 Aug 2023 14:38:18 +0200, Karol Herbst wrote: > > On Wed, Aug 9, 2023 at 6:16 PM Takashi Iwai wrote: > > > > On Wed, 09 Aug 2023 16:46:38 +0200, > > Takashi Iwai wrote: > > > > > > On Wed, 09 Aug 2023 15:13:23 +0200, > > > Takashi Iwai wrote: > > > > > > > > On Wed, 09 Aug 2023 14:19:23 +0200, > > > > Karol Herbst wrote: > > > > > > > > > > On Wed, Aug 9, 2023 at 1:46 PM Takashi Iwai wrote: > > > > > > > > > > > > On Wed, 09 Aug 2023 13:42:09 +0200, > > > > > > Karol Herbst wrote: > > > > > > > > > > > > > > On Wed, Aug 9, 2023 at 11:22 AM Takashi Iwai > > > > > > > wrote: > > > > > > > > > > > > > > > > On Tue, 08 Aug 2023 12:39:32 +0200, > > > > > > > > Karol Herbst wrote: > > > > > > > > > > > > > > > > > > On Mon, Aug 7, 2023 at 5:05 PM Borislav Petkov > > > > > > > > > wrote: > > > > > > > > > > > > > > > > > > > > On Mon, Aug 07, 2023 at 01:49:42PM +0200, Karol Herbst > > > > > > > > > > wrote: > > > > > > > > > > > in what way does it stop? Just not progressing? That > > > > > > > > > > > would be kinda > > > > > > > > > > > concerning. Mind tracing with what arguments > > > > > > > > > > > `nvkm_uevent_add` is > > > > > > > > > > > called with and without that patch? > > > > > > > > > > > > > > > > > > > > Well, me dumping those args I guess made the box not freeze > > > > > > > > > > before > > > > > > > > > > catching a #PF over serial. Does that help? > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > [3.410135] Unpacking initramfs... > > > > > > > > > > [3.416319] software IO TLB: mapped [mem > > > > > > > > > > 0xa877d000-0xac77d000] (64MB) > > > > > > > > > > [3.418227] Initialise system trusted keyrings > > > > > > > > > > [3.432273] workingset: timestamp_bits=56 max_order=22 > > > > > > > > > > bucket_order=0 > > > > > > > > > > [3.439006] ntfs: driver 2.1.32 [Flags: R/W]. > > > > > > > > > > [3.443368] fuse: init (API version 7.38) > > > > > > > > > > [3.447601] 9p: Installing v9fs 9p2000 file system > > > > > > > > > > support > > > > > > > > > > [3.453223] Key type asymmetric registered > > > > > > > > > > [3.457332] Asymmetric key parser 'x509' registered > > > > > > > > > > [3.462236] Block layer SCSI generic (bsg) driver > > > > > > > > > > version 0.4 loaded (major 250) > > > > > > > > > > [3.475865] efifb: probing for efifb > > > > > > > > > > [3.479458] efifb: framebuffer at 0xf900, using > > > > > > > > > > 1920k, total 1920k > > > > > > > > > > [3.485969] efifb: mode is 800x600x32, linelength=3200, > > > > > > > > > > pages=1 > > > > > > > > > > [3.491872] efifb: scrolling: redraw > > > > > > > > > > [3.495438] efifb: Truecolor: size=8:8:8:8, > > > > > > > > > > shift=24:16:8:0 > > > > > > > > > > [3.502349] Console: switching to colour frame buffer > > > > > > > > > > device 100x37 > > > > > > > > > > [3.509564] fb0: EFI VGA frame buffer device > > > > > > > > > > [3.514013] ACPI: \_PR_.CP00: Found 4 idle states > > > > > > > > > > [3.518850] ACPI: \_PR_.CP01: Found 4 idle states > > > > > > > > > > [3.523687] ACPI: \_PR_.CP02: Found 4 idle states > > > > > > > > > > [3.528515] ACPI: \_PR_.CP03: Found 4 idle states > > > > > > > > > > [3.533346] ACPI: \_PR_.CP04: Found 4 idle states > > > > > > > > > > [3.538173] ACPI: \_PR_.CP05: Found 4 idle states > > > > > > > > > > [3.543003] ACPI: \_PR_.CP06: Found 4 idle states > > > > > > > > > > [3.544219] Freeing initrd memory: 8196K > > > > > > > > > > [3.547844] ACPI: \_PR_.CP07: Found 4 idle states > > > > > > > > > > [3.609542] Serial: 8250/16550 driver, 4 ports, IRQ > > > > > > > > > > sharing enabled > > > > > > > > > > [3.616224] 00:05: ttyS0 at I/O 0x3f8 (irq = 4, > > > > > > > > > > base_baud = 115200) is a 16550A > > > > > > > > > > [3.625552] serial :00:16.3: enabling device ( > > > > > > > > > > -> 0003) > > > > > > > > > > [3.633034] :00:16.3: ttyS1 at I/O 0xf0a0 (irq = 17, > > > > > > > > > > base_baud = 115200) is a 16550A > > > > > > > > > > [3.642451] Linux agpgart interface v0.103 > > > > > > > > > > [3.647141] ACPI: bus type drm_connector registered > > > > > > > > > > [3.653261] Console: switching to colour dummy device > > > > > > > > > > 80x25 > > > > > > > > > > [3.659092] nouveau :03:00.0: vgaarb: deactivate vga > > > > > > > > > > console > > > > > > > > > > [3.665174] nouveau :03:00.0: NVIDIA GT218 (0a8c00b1) > > > > > > > > > > [3.784585] nouveau :03:00.0: bios: version > > > > > > > > > > 70.18.83.00.08 > > > > > > > > > > [3.792244] nouveau :03:00.0: fb: 512 MiB DDR3 > > > > > > > > > > [3.948786] nouveau :03:00.0: DRM: VRAM: 512 MiB > > > > > > > > > > [3.953755] nouveau :03:00.0: DRM: GART: 1048576 MiB > > > > > > > > > > [3.959073] nouveau :03:00.0: DRM: TMDS table > > > > > > > > > > version 2.0 > > > > > > > > > > [3.964808]
Re: 2b5d1c29f6c4 ("drm/nouveau/disp: PIOR DP uses GPIO for HPD, not PMGR AUX interrupts")
On Wed, Aug 9, 2023 at 6:16 PM Takashi Iwai wrote: > > On Wed, 09 Aug 2023 16:46:38 +0200, > Takashi Iwai wrote: > > > > On Wed, 09 Aug 2023 15:13:23 +0200, > > Takashi Iwai wrote: > > > > > > On Wed, 09 Aug 2023 14:19:23 +0200, > > > Karol Herbst wrote: > > > > > > > > On Wed, Aug 9, 2023 at 1:46 PM Takashi Iwai wrote: > > > > > > > > > > On Wed, 09 Aug 2023 13:42:09 +0200, > > > > > Karol Herbst wrote: > > > > > > > > > > > > On Wed, Aug 9, 2023 at 11:22 AM Takashi Iwai wrote: > > > > > > > > > > > > > > On Tue, 08 Aug 2023 12:39:32 +0200, > > > > > > > Karol Herbst wrote: > > > > > > > > > > > > > > > > On Mon, Aug 7, 2023 at 5:05 PM Borislav Petkov > > > > > > > > wrote: > > > > > > > > > > > > > > > > > > On Mon, Aug 07, 2023 at 01:49:42PM +0200, Karol Herbst wrote: > > > > > > > > > > in what way does it stop? Just not progressing? That would > > > > > > > > > > be kinda > > > > > > > > > > concerning. Mind tracing with what arguments > > > > > > > > > > `nvkm_uevent_add` is > > > > > > > > > > called with and without that patch? > > > > > > > > > > > > > > > > > > Well, me dumping those args I guess made the box not freeze > > > > > > > > > before > > > > > > > > > catching a #PF over serial. Does that help? > > > > > > > > > > > > > > > > > > > > > > > > > > > [3.410135] Unpacking initramfs... > > > > > > > > > [3.416319] software IO TLB: mapped [mem > > > > > > > > > 0xa877d000-0xac77d000] (64MB) > > > > > > > > > [3.418227] Initialise system trusted keyrings > > > > > > > > > [3.432273] workingset: timestamp_bits=56 max_order=22 > > > > > > > > > bucket_order=0 > > > > > > > > > [3.439006] ntfs: driver 2.1.32 [Flags: R/W]. > > > > > > > > > [3.443368] fuse: init (API version 7.38) > > > > > > > > > [3.447601] 9p: Installing v9fs 9p2000 file system support > > > > > > > > > [3.453223] Key type asymmetric registered > > > > > > > > > [3.457332] Asymmetric key parser 'x509' registered > > > > > > > > > [3.462236] Block layer SCSI generic (bsg) driver version > > > > > > > > > 0.4 loaded (major 250) > > > > > > > > > [3.475865] efifb: probing for efifb > > > > > > > > > [3.479458] efifb: framebuffer at 0xf900, using 1920k, > > > > > > > > > total 1920k > > > > > > > > > [3.485969] efifb: mode is 800x600x32, linelength=3200, > > > > > > > > > pages=1 > > > > > > > > > [3.491872] efifb: scrolling: redraw > > > > > > > > > [3.495438] efifb: Truecolor: size=8:8:8:8, shift=24:16:8:0 > > > > > > > > > [3.502349] Console: switching to colour frame buffer > > > > > > > > > device 100x37 > > > > > > > > > [3.509564] fb0: EFI VGA frame buffer device > > > > > > > > > [3.514013] ACPI: \_PR_.CP00: Found 4 idle states > > > > > > > > > [3.518850] ACPI: \_PR_.CP01: Found 4 idle states > > > > > > > > > [3.523687] ACPI: \_PR_.CP02: Found 4 idle states > > > > > > > > > [3.528515] ACPI: \_PR_.CP03: Found 4 idle states > > > > > > > > > [3.533346] ACPI: \_PR_.CP04: Found 4 idle states > > > > > > > > > [3.538173] ACPI: \_PR_.CP05: Found 4 idle states > > > > > > > > > [3.543003] ACPI: \_PR_.CP06: Found 4 idle states > > > > > > > > > [3.544219] Freeing initrd memory: 8196K > > > > > > > > > [3.547844] ACPI: \_PR_.CP07: Found 4 idle states > > > > > > > > > [3.609542] Serial: 8250/16550 driver, 4 ports, IRQ > > > > > > > > > sharing enabled > > > > > > > > > [3.616224] 00:05: ttyS0 at I/O 0x3f8 (irq = 4, base_baud > > > > > > > > > = 115200) is a 16550A > > > > > > > > > [3.625552] serial :00:16.3: enabling device ( -> > > > > > > > > > 0003) > > > > > > > > > [3.633034] :00:16.3: ttyS1 at I/O 0xf0a0 (irq = 17, > > > > > > > > > base_baud = 115200) is a 16550A > > > > > > > > > [3.642451] Linux agpgart interface v0.103 > > > > > > > > > [3.647141] ACPI: bus type drm_connector registered > > > > > > > > > [3.653261] Console: switching to colour dummy device 80x25 > > > > > > > > > [3.659092] nouveau :03:00.0: vgaarb: deactivate vga > > > > > > > > > console > > > > > > > > > [3.665174] nouveau :03:00.0: NVIDIA GT218 (0a8c00b1) > > > > > > > > > [3.784585] nouveau :03:00.0: bios: version > > > > > > > > > 70.18.83.00.08 > > > > > > > > > [3.792244] nouveau :03:00.0: fb: 512 MiB DDR3 > > > > > > > > > [3.948786] nouveau :03:00.0: DRM: VRAM: 512 MiB > > > > > > > > > [3.953755] nouveau :03:00.0: DRM: GART: 1048576 MiB > > > > > > > > > [3.959073] nouveau :03:00.0: DRM: TMDS table version > > > > > > > > > 2.0 > > > > > > > > > [3.964808] nouveau :03:00.0: DRM: DCB version 4.0 > > > > > > > > > [3.969938] nouveau :03:00.0: DRM: DCB outp 00: > > > > > > > > > 02000360 > > > > > > > > > [3.976367] nouveau :03:00.0: DRM: DCB outp 01: > > > > > > > > > 02000362 00020010 > > > > > > > > > [3.982792] nouveau :03:00.0: DRM: DCB outp 02: > > > >
Re: 2b5d1c29f6c4 ("drm/nouveau/disp: PIOR DP uses GPIO for HPD, not PMGR AUX interrupts")
On Wed, Aug 9, 2023 at 8:28 PM Karol Herbst wrote: > > On Wed, Aug 9, 2023 at 4:04 PM Thorsten Leemhuis > wrote: > > > > On 09.08.23 15:13, Takashi Iwai wrote: > > > > > > If this can't be fixed quickly, I suppose it's safer to revert it from > > > 6.4.y for now. 6.5 is still being cooked, but 6.4.x is already in > > > wide deployment, hence the regression has to be addressed quickly. > > > > feel free to send reverts to mainline and add my r-by tage to it and I > can push those changes up. Sadly those patches fixed another > use-after-free, but it seems like we have to take another shot unless > somebody does have time to look into it promptly. > uhm and the two patches around that one, 752a281032b2d6f4564be827e082bde6f7d2fd4fand ea293f823a8805735d9e00124df81a8f448ed1ae > > Good luck with that. To quote > > https://docs.kernel.org/process/handling-regressions.html : > > > > ``` > > Regarding stable and longterm kernels: > > > > [...] > > > > * Whenever you want to swiftly resolve a regression that recently also > > made it into a proper mainline, stable, or longterm release, fix it > > quickly in mainline; when appropriate thus involve Linus to fast-track > > the fix (see above). That's because the stable team normally does > > neither revert nor fix any changes that cause the same problems in mainline. > > ``` > > > > Note the "normally" in there, so there is a chance. > > > > Ciao, Thorsten > >
Re: 2b5d1c29f6c4 ("drm/nouveau/disp: PIOR DP uses GPIO for HPD, not PMGR AUX interrupts")
On Wed, Aug 9, 2023 at 4:04 PM Thorsten Leemhuis wrote: > > On 09.08.23 15:13, Takashi Iwai wrote: > > > > If this can't be fixed quickly, I suppose it's safer to revert it from > > 6.4.y for now. 6.5 is still being cooked, but 6.4.x is already in > > wide deployment, hence the regression has to be addressed quickly. > feel free to send reverts to mainline and add my r-by tage to it and I can push those changes up. Sadly those patches fixed another use-after-free, but it seems like we have to take another shot unless somebody does have time to look into it promptly. > Good luck with that. To quote > https://docs.kernel.org/process/handling-regressions.html : > > ``` > Regarding stable and longterm kernels: > > [...] > > * Whenever you want to swiftly resolve a regression that recently also > made it into a proper mainline, stable, or longterm release, fix it > quickly in mainline; when appropriate thus involve Linus to fast-track > the fix (see above). That's because the stable team normally does > neither revert nor fix any changes that cause the same problems in mainline. > ``` > > Note the "normally" in there, so there is a chance. > > Ciao, Thorsten >
Re: 2b5d1c29f6c4 ("drm/nouveau/disp: PIOR DP uses GPIO for HPD, not PMGR AUX interrupts")
On Wed, 09 Aug 2023 16:46:38 +0200, Takashi Iwai wrote: > > On Wed, 09 Aug 2023 15:13:23 +0200, > Takashi Iwai wrote: > > > > On Wed, 09 Aug 2023 14:19:23 +0200, > > Karol Herbst wrote: > > > > > > On Wed, Aug 9, 2023 at 1:46 PM Takashi Iwai wrote: > > > > > > > > On Wed, 09 Aug 2023 13:42:09 +0200, > > > > Karol Herbst wrote: > > > > > > > > > > On Wed, Aug 9, 2023 at 11:22 AM Takashi Iwai wrote: > > > > > > > > > > > > On Tue, 08 Aug 2023 12:39:32 +0200, > > > > > > Karol Herbst wrote: > > > > > > > > > > > > > > On Mon, Aug 7, 2023 at 5:05 PM Borislav Petkov > > > > > > > wrote: > > > > > > > > > > > > > > > > On Mon, Aug 07, 2023 at 01:49:42PM +0200, Karol Herbst wrote: > > > > > > > > > in what way does it stop? Just not progressing? That would be > > > > > > > > > kinda > > > > > > > > > concerning. Mind tracing with what arguments > > > > > > > > > `nvkm_uevent_add` is > > > > > > > > > called with and without that patch? > > > > > > > > > > > > > > > > Well, me dumping those args I guess made the box not freeze > > > > > > > > before > > > > > > > > catching a #PF over serial. Does that help? > > > > > > > > > > > > > > > > > > > > > > > > [3.410135] Unpacking initramfs... > > > > > > > > [3.416319] software IO TLB: mapped [mem > > > > > > > > 0xa877d000-0xac77d000] (64MB) > > > > > > > > [3.418227] Initialise system trusted keyrings > > > > > > > > [3.432273] workingset: timestamp_bits=56 max_order=22 > > > > > > > > bucket_order=0 > > > > > > > > [3.439006] ntfs: driver 2.1.32 [Flags: R/W]. > > > > > > > > [3.443368] fuse: init (API version 7.38) > > > > > > > > [3.447601] 9p: Installing v9fs 9p2000 file system support > > > > > > > > [3.453223] Key type asymmetric registered > > > > > > > > [3.457332] Asymmetric key parser 'x509' registered > > > > > > > > [3.462236] Block layer SCSI generic (bsg) driver version > > > > > > > > 0.4 loaded (major 250) > > > > > > > > [3.475865] efifb: probing for efifb > > > > > > > > [3.479458] efifb: framebuffer at 0xf900, using 1920k, > > > > > > > > total 1920k > > > > > > > > [3.485969] efifb: mode is 800x600x32, linelength=3200, > > > > > > > > pages=1 > > > > > > > > [3.491872] efifb: scrolling: redraw > > > > > > > > [3.495438] efifb: Truecolor: size=8:8:8:8, shift=24:16:8:0 > > > > > > > > [3.502349] Console: switching to colour frame buffer device > > > > > > > > 100x37 > > > > > > > > [3.509564] fb0: EFI VGA frame buffer device > > > > > > > > [3.514013] ACPI: \_PR_.CP00: Found 4 idle states > > > > > > > > [3.518850] ACPI: \_PR_.CP01: Found 4 idle states > > > > > > > > [3.523687] ACPI: \_PR_.CP02: Found 4 idle states > > > > > > > > [3.528515] ACPI: \_PR_.CP03: Found 4 idle states > > > > > > > > [3.533346] ACPI: \_PR_.CP04: Found 4 idle states > > > > > > > > [3.538173] ACPI: \_PR_.CP05: Found 4 idle states > > > > > > > > [3.543003] ACPI: \_PR_.CP06: Found 4 idle states > > > > > > > > [3.544219] Freeing initrd memory: 8196K > > > > > > > > [3.547844] ACPI: \_PR_.CP07: Found 4 idle states > > > > > > > > [3.609542] Serial: 8250/16550 driver, 4 ports, IRQ sharing > > > > > > > > enabled > > > > > > > > [3.616224] 00:05: ttyS0 at I/O 0x3f8 (irq = 4, base_baud = > > > > > > > > 115200) is a 16550A > > > > > > > > [3.625552] serial :00:16.3: enabling device ( -> > > > > > > > > 0003) > > > > > > > > [3.633034] :00:16.3: ttyS1 at I/O 0xf0a0 (irq = 17, > > > > > > > > base_baud = 115200) is a 16550A > > > > > > > > [3.642451] Linux agpgart interface v0.103 > > > > > > > > [3.647141] ACPI: bus type drm_connector registered > > > > > > > > [3.653261] Console: switching to colour dummy device 80x25 > > > > > > > > [3.659092] nouveau :03:00.0: vgaarb: deactivate vga > > > > > > > > console > > > > > > > > [3.665174] nouveau :03:00.0: NVIDIA GT218 (0a8c00b1) > > > > > > > > [3.784585] nouveau :03:00.0: bios: version > > > > > > > > 70.18.83.00.08 > > > > > > > > [3.792244] nouveau :03:00.0: fb: 512 MiB DDR3 > > > > > > > > [3.948786] nouveau :03:00.0: DRM: VRAM: 512 MiB > > > > > > > > [3.953755] nouveau :03:00.0: DRM: GART: 1048576 MiB > > > > > > > > [3.959073] nouveau :03:00.0: DRM: TMDS table version 2.0 > > > > > > > > [3.964808] nouveau :03:00.0: DRM: DCB version 4.0 > > > > > > > > [3.969938] nouveau :03:00.0: DRM: DCB outp 00: 02000360 > > > > > > > > > > > > > > > > [3.976367] nouveau :03:00.0: DRM: DCB outp 01: 02000362 > > > > > > > > 00020010 > > > > > > > > [3.982792] nouveau :03:00.0: DRM: DCB outp 02: 028003a6 > > > > > > > > 0f220010 > > > > > > > > [3.989223] nouveau :03:00.0: DRM: DCB outp 03: 01011380 > > > > > > > > > > > > > > > > [3.995647] nouveau :03:00.0: DRM: DCB outp 04: 08011382 > > > > > > > > 00020010 > > > > > > > >
Re: 2b5d1c29f6c4 ("drm/nouveau/disp: PIOR DP uses GPIO for HPD, not PMGR AUX interrupts")
On Wed, 09 Aug 2023 15:13:23 +0200, Takashi Iwai wrote: > > On Wed, 09 Aug 2023 14:19:23 +0200, > Karol Herbst wrote: > > > > On Wed, Aug 9, 2023 at 1:46 PM Takashi Iwai wrote: > > > > > > On Wed, 09 Aug 2023 13:42:09 +0200, > > > Karol Herbst wrote: > > > > > > > > On Wed, Aug 9, 2023 at 11:22 AM Takashi Iwai wrote: > > > > > > > > > > On Tue, 08 Aug 2023 12:39:32 +0200, > > > > > Karol Herbst wrote: > > > > > > > > > > > > On Mon, Aug 7, 2023 at 5:05 PM Borislav Petkov > > > > > > wrote: > > > > > > > > > > > > > > On Mon, Aug 07, 2023 at 01:49:42PM +0200, Karol Herbst wrote: > > > > > > > > in what way does it stop? Just not progressing? That would be > > > > > > > > kinda > > > > > > > > concerning. Mind tracing with what arguments `nvkm_uevent_add` > > > > > > > > is > > > > > > > > called with and without that patch? > > > > > > > > > > > > > > Well, me dumping those args I guess made the box not freeze before > > > > > > > catching a #PF over serial. Does that help? > > > > > > > > > > > > > > > > > > > > > [3.410135] Unpacking initramfs... > > > > > > > [3.416319] software IO TLB: mapped [mem > > > > > > > 0xa877d000-0xac77d000] (64MB) > > > > > > > [3.418227] Initialise system trusted keyrings > > > > > > > [3.432273] workingset: timestamp_bits=56 max_order=22 > > > > > > > bucket_order=0 > > > > > > > [3.439006] ntfs: driver 2.1.32 [Flags: R/W]. > > > > > > > [3.443368] fuse: init (API version 7.38) > > > > > > > [3.447601] 9p: Installing v9fs 9p2000 file system support > > > > > > > [3.453223] Key type asymmetric registered > > > > > > > [3.457332] Asymmetric key parser 'x509' registered > > > > > > > [3.462236] Block layer SCSI generic (bsg) driver version 0.4 > > > > > > > loaded (major 250) > > > > > > > [3.475865] efifb: probing for efifb > > > > > > > [3.479458] efifb: framebuffer at 0xf900, using 1920k, > > > > > > > total 1920k > > > > > > > [3.485969] efifb: mode is 800x600x32, linelength=3200, pages=1 > > > > > > > [3.491872] efifb: scrolling: redraw > > > > > > > [3.495438] efifb: Truecolor: size=8:8:8:8, shift=24:16:8:0 > > > > > > > [3.502349] Console: switching to colour frame buffer device > > > > > > > 100x37 > > > > > > > [3.509564] fb0: EFI VGA frame buffer device > > > > > > > [3.514013] ACPI: \_PR_.CP00: Found 4 idle states > > > > > > > [3.518850] ACPI: \_PR_.CP01: Found 4 idle states > > > > > > > [3.523687] ACPI: \_PR_.CP02: Found 4 idle states > > > > > > > [3.528515] ACPI: \_PR_.CP03: Found 4 idle states > > > > > > > [3.533346] ACPI: \_PR_.CP04: Found 4 idle states > > > > > > > [3.538173] ACPI: \_PR_.CP05: Found 4 idle states > > > > > > > [3.543003] ACPI: \_PR_.CP06: Found 4 idle states > > > > > > > [3.544219] Freeing initrd memory: 8196K > > > > > > > [3.547844] ACPI: \_PR_.CP07: Found 4 idle states > > > > > > > [3.609542] Serial: 8250/16550 driver, 4 ports, IRQ sharing > > > > > > > enabled > > > > > > > [3.616224] 00:05: ttyS0 at I/O 0x3f8 (irq = 4, base_baud = > > > > > > > 115200) is a 16550A > > > > > > > [3.625552] serial :00:16.3: enabling device ( -> 0003) > > > > > > > [3.633034] :00:16.3: ttyS1 at I/O 0xf0a0 (irq = 17, > > > > > > > base_baud = 115200) is a 16550A > > > > > > > [3.642451] Linux agpgart interface v0.103 > > > > > > > [3.647141] ACPI: bus type drm_connector registered > > > > > > > [3.653261] Console: switching to colour dummy device 80x25 > > > > > > > [3.659092] nouveau :03:00.0: vgaarb: deactivate vga > > > > > > > console > > > > > > > [3.665174] nouveau :03:00.0: NVIDIA GT218 (0a8c00b1) > > > > > > > [3.784585] nouveau :03:00.0: bios: version 70.18.83.00.08 > > > > > > > [3.792244] nouveau :03:00.0: fb: 512 MiB DDR3 > > > > > > > [3.948786] nouveau :03:00.0: DRM: VRAM: 512 MiB > > > > > > > [3.953755] nouveau :03:00.0: DRM: GART: 1048576 MiB > > > > > > > [3.959073] nouveau :03:00.0: DRM: TMDS table version 2.0 > > > > > > > [3.964808] nouveau :03:00.0: DRM: DCB version 4.0 > > > > > > > [3.969938] nouveau :03:00.0: DRM: DCB outp 00: 02000360 > > > > > > > > > > > > > > [3.976367] nouveau :03:00.0: DRM: DCB outp 01: 02000362 > > > > > > > 00020010 > > > > > > > [3.982792] nouveau :03:00.0: DRM: DCB outp 02: 028003a6 > > > > > > > 0f220010 > > > > > > > [3.989223] nouveau :03:00.0: DRM: DCB outp 03: 01011380 > > > > > > > > > > > > > > [3.995647] nouveau :03:00.0: DRM: DCB outp 04: 08011382 > > > > > > > 00020010 > > > > > > > [4.002076] nouveau :03:00.0: DRM: DCB outp 05: 088113c6 > > > > > > > 0f220010 > > > > > > > [4.008511] nouveau :03:00.0: DRM: DCB conn 00: 00101064 > > > > > > > [4.014151] nouveau :03:00.0: DRM: DCB conn 01: 00202165 > > > > > > > [4.021710] nvkm_uevent_add: uevent:
Re: 2b5d1c29f6c4 ("drm/nouveau/disp: PIOR DP uses GPIO for HPD, not PMGR AUX interrupts")
On 09.08.23 15:13, Takashi Iwai wrote: > > If this can't be fixed quickly, I suppose it's safer to revert it from > 6.4.y for now. 6.5 is still being cooked, but 6.4.x is already in > wide deployment, hence the regression has to be addressed quickly. Good luck with that. To quote https://docs.kernel.org/process/handling-regressions.html : ``` Regarding stable and longterm kernels: [...] * Whenever you want to swiftly resolve a regression that recently also made it into a proper mainline, stable, or longterm release, fix it quickly in mainline; when appropriate thus involve Linus to fast-track the fix (see above). That's because the stable team normally does neither revert nor fix any changes that cause the same problems in mainline. ``` Note the "normally" in there, so there is a chance. Ciao, Thorsten
Re: 2b5d1c29f6c4 ("drm/nouveau/disp: PIOR DP uses GPIO for HPD, not PMGR AUX interrupts")
On Wed, 09 Aug 2023 14:19:23 +0200, Karol Herbst wrote: > > On Wed, Aug 9, 2023 at 1:46 PM Takashi Iwai wrote: > > > > On Wed, 09 Aug 2023 13:42:09 +0200, > > Karol Herbst wrote: > > > > > > On Wed, Aug 9, 2023 at 11:22 AM Takashi Iwai wrote: > > > > > > > > On Tue, 08 Aug 2023 12:39:32 +0200, > > > > Karol Herbst wrote: > > > > > > > > > > On Mon, Aug 7, 2023 at 5:05 PM Borislav Petkov wrote: > > > > > > > > > > > > On Mon, Aug 07, 2023 at 01:49:42PM +0200, Karol Herbst wrote: > > > > > > > in what way does it stop? Just not progressing? That would be > > > > > > > kinda > > > > > > > concerning. Mind tracing with what arguments `nvkm_uevent_add` is > > > > > > > called with and without that patch? > > > > > > > > > > > > Well, me dumping those args I guess made the box not freeze before > > > > > > catching a #PF over serial. Does that help? > > > > > > > > > > > > > > > > > > [3.410135] Unpacking initramfs... > > > > > > [3.416319] software IO TLB: mapped [mem > > > > > > 0xa877d000-0xac77d000] (64MB) > > > > > > [3.418227] Initialise system trusted keyrings > > > > > > [3.432273] workingset: timestamp_bits=56 max_order=22 > > > > > > bucket_order=0 > > > > > > [3.439006] ntfs: driver 2.1.32 [Flags: R/W]. > > > > > > [3.443368] fuse: init (API version 7.38) > > > > > > [3.447601] 9p: Installing v9fs 9p2000 file system support > > > > > > [3.453223] Key type asymmetric registered > > > > > > [3.457332] Asymmetric key parser 'x509' registered > > > > > > [3.462236] Block layer SCSI generic (bsg) driver version 0.4 > > > > > > loaded (major 250) > > > > > > [3.475865] efifb: probing for efifb > > > > > > [3.479458] efifb: framebuffer at 0xf900, using 1920k, total > > > > > > 1920k > > > > > > [3.485969] efifb: mode is 800x600x32, linelength=3200, pages=1 > > > > > > [3.491872] efifb: scrolling: redraw > > > > > > [3.495438] efifb: Truecolor: size=8:8:8:8, shift=24:16:8:0 > > > > > > [3.502349] Console: switching to colour frame buffer device > > > > > > 100x37 > > > > > > [3.509564] fb0: EFI VGA frame buffer device > > > > > > [3.514013] ACPI: \_PR_.CP00: Found 4 idle states > > > > > > [3.518850] ACPI: \_PR_.CP01: Found 4 idle states > > > > > > [3.523687] ACPI: \_PR_.CP02: Found 4 idle states > > > > > > [3.528515] ACPI: \_PR_.CP03: Found 4 idle states > > > > > > [3.533346] ACPI: \_PR_.CP04: Found 4 idle states > > > > > > [3.538173] ACPI: \_PR_.CP05: Found 4 idle states > > > > > > [3.543003] ACPI: \_PR_.CP06: Found 4 idle states > > > > > > [3.544219] Freeing initrd memory: 8196K > > > > > > [3.547844] ACPI: \_PR_.CP07: Found 4 idle states > > > > > > [3.609542] Serial: 8250/16550 driver, 4 ports, IRQ sharing > > > > > > enabled > > > > > > [3.616224] 00:05: ttyS0 at I/O 0x3f8 (irq = 4, base_baud = > > > > > > 115200) is a 16550A > > > > > > [3.625552] serial :00:16.3: enabling device ( -> 0003) > > > > > > [3.633034] :00:16.3: ttyS1 at I/O 0xf0a0 (irq = 17, > > > > > > base_baud = 115200) is a 16550A > > > > > > [3.642451] Linux agpgart interface v0.103 > > > > > > [3.647141] ACPI: bus type drm_connector registered > > > > > > [3.653261] Console: switching to colour dummy device 80x25 > > > > > > [3.659092] nouveau :03:00.0: vgaarb: deactivate vga console > > > > > > [3.665174] nouveau :03:00.0: NVIDIA GT218 (0a8c00b1) > > > > > > [3.784585] nouveau :03:00.0: bios: version 70.18.83.00.08 > > > > > > [3.792244] nouveau :03:00.0: fb: 512 MiB DDR3 > > > > > > [3.948786] nouveau :03:00.0: DRM: VRAM: 512 MiB > > > > > > [3.953755] nouveau :03:00.0: DRM: GART: 1048576 MiB > > > > > > [3.959073] nouveau :03:00.0: DRM: TMDS table version 2.0 > > > > > > [3.964808] nouveau :03:00.0: DRM: DCB version 4.0 > > > > > > [3.969938] nouveau :03:00.0: DRM: DCB outp 00: 02000360 > > > > > > > > > > > > [3.976367] nouveau :03:00.0: DRM: DCB outp 01: 02000362 > > > > > > 00020010 > > > > > > [3.982792] nouveau :03:00.0: DRM: DCB outp 02: 028003a6 > > > > > > 0f220010 > > > > > > [3.989223] nouveau :03:00.0: DRM: DCB outp 03: 01011380 > > > > > > > > > > > > [3.995647] nouveau :03:00.0: DRM: DCB outp 04: 08011382 > > > > > > 00020010 > > > > > > [4.002076] nouveau :03:00.0: DRM: DCB outp 05: 088113c6 > > > > > > 0f220010 > > > > > > [4.008511] nouveau :03:00.0: DRM: DCB conn 00: 00101064 > > > > > > [4.014151] nouveau :03:00.0: DRM: DCB conn 01: 00202165 > > > > > > [4.021710] nvkm_uevent_add: uevent: 0x888100242100, event: > > > > > > 0x8881022de1a0, id: 0x0, bits: 0x1, func: 0x > > > > > > [4.033680] nvkm_uevent_add: uevent: 0x888100242300, event: > > > > > > 0x8881022de1a0, id: 0x0, bits: 0x1, func: 0x > > > > > > [4.045429]
Re: 2b5d1c29f6c4 ("drm/nouveau/disp: PIOR DP uses GPIO for HPD, not PMGR AUX interrupts")
On Wed, Aug 9, 2023 at 1:46 PM Takashi Iwai wrote: > > On Wed, 09 Aug 2023 13:42:09 +0200, > Karol Herbst wrote: > > > > On Wed, Aug 9, 2023 at 11:22 AM Takashi Iwai wrote: > > > > > > On Tue, 08 Aug 2023 12:39:32 +0200, > > > Karol Herbst wrote: > > > > > > > > On Mon, Aug 7, 2023 at 5:05 PM Borislav Petkov wrote: > > > > > > > > > > On Mon, Aug 07, 2023 at 01:49:42PM +0200, Karol Herbst wrote: > > > > > > in what way does it stop? Just not progressing? That would be kinda > > > > > > concerning. Mind tracing with what arguments `nvkm_uevent_add` is > > > > > > called with and without that patch? > > > > > > > > > > Well, me dumping those args I guess made the box not freeze before > > > > > catching a #PF over serial. Does that help? > > > > > > > > > > > > > > > [3.410135] Unpacking initramfs... > > > > > [3.416319] software IO TLB: mapped [mem > > > > > 0xa877d000-0xac77d000] (64MB) > > > > > [3.418227] Initialise system trusted keyrings > > > > > [3.432273] workingset: timestamp_bits=56 max_order=22 > > > > > bucket_order=0 > > > > > [3.439006] ntfs: driver 2.1.32 [Flags: R/W]. > > > > > [3.443368] fuse: init (API version 7.38) > > > > > [3.447601] 9p: Installing v9fs 9p2000 file system support > > > > > [3.453223] Key type asymmetric registered > > > > > [3.457332] Asymmetric key parser 'x509' registered > > > > > [3.462236] Block layer SCSI generic (bsg) driver version 0.4 > > > > > loaded (major 250) > > > > > [3.475865] efifb: probing for efifb > > > > > [3.479458] efifb: framebuffer at 0xf900, using 1920k, total > > > > > 1920k > > > > > [3.485969] efifb: mode is 800x600x32, linelength=3200, pages=1 > > > > > [3.491872] efifb: scrolling: redraw > > > > > [3.495438] efifb: Truecolor: size=8:8:8:8, shift=24:16:8:0 > > > > > [3.502349] Console: switching to colour frame buffer device 100x37 > > > > > [3.509564] fb0: EFI VGA frame buffer device > > > > > [3.514013] ACPI: \_PR_.CP00: Found 4 idle states > > > > > [3.518850] ACPI: \_PR_.CP01: Found 4 idle states > > > > > [3.523687] ACPI: \_PR_.CP02: Found 4 idle states > > > > > [3.528515] ACPI: \_PR_.CP03: Found 4 idle states > > > > > [3.533346] ACPI: \_PR_.CP04: Found 4 idle states > > > > > [3.538173] ACPI: \_PR_.CP05: Found 4 idle states > > > > > [3.543003] ACPI: \_PR_.CP06: Found 4 idle states > > > > > [3.544219] Freeing initrd memory: 8196K > > > > > [3.547844] ACPI: \_PR_.CP07: Found 4 idle states > > > > > [3.609542] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled > > > > > [3.616224] 00:05: ttyS0 at I/O 0x3f8 (irq = 4, base_baud = > > > > > 115200) is a 16550A > > > > > [3.625552] serial :00:16.3: enabling device ( -> 0003) > > > > > [3.633034] :00:16.3: ttyS1 at I/O 0xf0a0 (irq = 17, base_baud > > > > > = 115200) is a 16550A > > > > > [3.642451] Linux agpgart interface v0.103 > > > > > [3.647141] ACPI: bus type drm_connector registered > > > > > [3.653261] Console: switching to colour dummy device 80x25 > > > > > [3.659092] nouveau :03:00.0: vgaarb: deactivate vga console > > > > > [3.665174] nouveau :03:00.0: NVIDIA GT218 (0a8c00b1) > > > > > [3.784585] nouveau :03:00.0: bios: version 70.18.83.00.08 > > > > > [3.792244] nouveau :03:00.0: fb: 512 MiB DDR3 > > > > > [3.948786] nouveau :03:00.0: DRM: VRAM: 512 MiB > > > > > [3.953755] nouveau :03:00.0: DRM: GART: 1048576 MiB > > > > > [3.959073] nouveau :03:00.0: DRM: TMDS table version 2.0 > > > > > [3.964808] nouveau :03:00.0: DRM: DCB version 4.0 > > > > > [3.969938] nouveau :03:00.0: DRM: DCB outp 00: 02000360 > > > > > > > > > > [3.976367] nouveau :03:00.0: DRM: DCB outp 01: 02000362 > > > > > 00020010 > > > > > [3.982792] nouveau :03:00.0: DRM: DCB outp 02: 028003a6 > > > > > 0f220010 > > > > > [3.989223] nouveau :03:00.0: DRM: DCB outp 03: 01011380 > > > > > > > > > > [3.995647] nouveau :03:00.0: DRM: DCB outp 04: 08011382 > > > > > 00020010 > > > > > [4.002076] nouveau :03:00.0: DRM: DCB outp 05: 088113c6 > > > > > 0f220010 > > > > > [4.008511] nouveau :03:00.0: DRM: DCB conn 00: 00101064 > > > > > [4.014151] nouveau :03:00.0: DRM: DCB conn 01: 00202165 > > > > > [4.021710] nvkm_uevent_add: uevent: 0x888100242100, event: > > > > > 0x8881022de1a0, id: 0x0, bits: 0x1, func: 0x > > > > > [4.033680] nvkm_uevent_add: uevent: 0x888100242300, event: > > > > > 0x8881022de1a0, id: 0x0, bits: 0x1, func: 0x > > > > > [4.045429] nouveau :03:00.0: DRM: MM: using COPY for buffer > > > > > copies > > > > > [4.052059] stackdepot: allocating hash table of 1048576 entries > > > > > via kvcalloc > > > > > [4.067191] nvkm_uevent_add: uevent: 0x888100242800, event: > > > > >
Re: 2b5d1c29f6c4 ("drm/nouveau/disp: PIOR DP uses GPIO for HPD, not PMGR AUX interrupts")
On Wed, 09 Aug 2023 13:42:09 +0200, Karol Herbst wrote: > > On Wed, Aug 9, 2023 at 11:22 AM Takashi Iwai wrote: > > > > On Tue, 08 Aug 2023 12:39:32 +0200, > > Karol Herbst wrote: > > > > > > On Mon, Aug 7, 2023 at 5:05 PM Borislav Petkov wrote: > > > > > > > > On Mon, Aug 07, 2023 at 01:49:42PM +0200, Karol Herbst wrote: > > > > > in what way does it stop? Just not progressing? That would be kinda > > > > > concerning. Mind tracing with what arguments `nvkm_uevent_add` is > > > > > called with and without that patch? > > > > > > > > Well, me dumping those args I guess made the box not freeze before > > > > catching a #PF over serial. Does that help? > > > > > > > > > > > > [3.410135] Unpacking initramfs... > > > > [3.416319] software IO TLB: mapped [mem > > > > 0xa877d000-0xac77d000] (64MB) > > > > [3.418227] Initialise system trusted keyrings > > > > [3.432273] workingset: timestamp_bits=56 max_order=22 bucket_order=0 > > > > [3.439006] ntfs: driver 2.1.32 [Flags: R/W]. > > > > [3.443368] fuse: init (API version 7.38) > > > > [3.447601] 9p: Installing v9fs 9p2000 file system support > > > > [3.453223] Key type asymmetric registered > > > > [3.457332] Asymmetric key parser 'x509' registered > > > > [3.462236] Block layer SCSI generic (bsg) driver version 0.4 loaded > > > > (major 250) > > > > [3.475865] efifb: probing for efifb > > > > [3.479458] efifb: framebuffer at 0xf900, using 1920k, total > > > > 1920k > > > > [3.485969] efifb: mode is 800x600x32, linelength=3200, pages=1 > > > > [3.491872] efifb: scrolling: redraw > > > > [3.495438] efifb: Truecolor: size=8:8:8:8, shift=24:16:8:0 > > > > [3.502349] Console: switching to colour frame buffer device 100x37 > > > > [3.509564] fb0: EFI VGA frame buffer device > > > > [3.514013] ACPI: \_PR_.CP00: Found 4 idle states > > > > [3.518850] ACPI: \_PR_.CP01: Found 4 idle states > > > > [3.523687] ACPI: \_PR_.CP02: Found 4 idle states > > > > [3.528515] ACPI: \_PR_.CP03: Found 4 idle states > > > > [3.533346] ACPI: \_PR_.CP04: Found 4 idle states > > > > [3.538173] ACPI: \_PR_.CP05: Found 4 idle states > > > > [3.543003] ACPI: \_PR_.CP06: Found 4 idle states > > > > [3.544219] Freeing initrd memory: 8196K > > > > [3.547844] ACPI: \_PR_.CP07: Found 4 idle states > > > > [3.609542] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled > > > > [3.616224] 00:05: ttyS0 at I/O 0x3f8 (irq = 4, base_baud = 115200) > > > > is a 16550A > > > > [3.625552] serial :00:16.3: enabling device ( -> 0003) > > > > [3.633034] :00:16.3: ttyS1 at I/O 0xf0a0 (irq = 17, base_baud = > > > > 115200) is a 16550A > > > > [3.642451] Linux agpgart interface v0.103 > > > > [3.647141] ACPI: bus type drm_connector registered > > > > [3.653261] Console: switching to colour dummy device 80x25 > > > > [3.659092] nouveau :03:00.0: vgaarb: deactivate vga console > > > > [3.665174] nouveau :03:00.0: NVIDIA GT218 (0a8c00b1) > > > > [3.784585] nouveau :03:00.0: bios: version 70.18.83.00.08 > > > > [3.792244] nouveau :03:00.0: fb: 512 MiB DDR3 > > > > [3.948786] nouveau :03:00.0: DRM: VRAM: 512 MiB > > > > [3.953755] nouveau :03:00.0: DRM: GART: 1048576 MiB > > > > [3.959073] nouveau :03:00.0: DRM: TMDS table version 2.0 > > > > [3.964808] nouveau :03:00.0: DRM: DCB version 4.0 > > > > [3.969938] nouveau :03:00.0: DRM: DCB outp 00: 02000360 > > > > [3.976367] nouveau :03:00.0: DRM: DCB outp 01: 02000362 00020010 > > > > [3.982792] nouveau :03:00.0: DRM: DCB outp 02: 028003a6 0f220010 > > > > [3.989223] nouveau :03:00.0: DRM: DCB outp 03: 01011380 > > > > [3.995647] nouveau :03:00.0: DRM: DCB outp 04: 08011382 00020010 > > > > [4.002076] nouveau :03:00.0: DRM: DCB outp 05: 088113c6 0f220010 > > > > [4.008511] nouveau :03:00.0: DRM: DCB conn 00: 00101064 > > > > [4.014151] nouveau :03:00.0: DRM: DCB conn 01: 00202165 > > > > [4.021710] nvkm_uevent_add: uevent: 0x888100242100, event: > > > > 0x8881022de1a0, id: 0x0, bits: 0x1, func: 0x > > > > [4.033680] nvkm_uevent_add: uevent: 0x888100242300, event: > > > > 0x8881022de1a0, id: 0x0, bits: 0x1, func: 0x > > > > [4.045429] nouveau :03:00.0: DRM: MM: using COPY for buffer > > > > copies > > > > [4.052059] stackdepot: allocating hash table of 1048576 entries via > > > > kvcalloc > > > > [4.067191] nvkm_uevent_add: uevent: 0x888100242800, event: > > > > 0x888104b3e260, id: 0x0, bits: 0x1, func: 0x > > > > [4.078936] nvkm_uevent_add: uevent: 0x888100242900, event: > > > > 0x888104b3e260, id: 0x1, bits: 0x1, func: 0x > > > > [4.090514] nvkm_uevent_add: uevent: 0x888100242a00, event: > > > >
Re: 2b5d1c29f6c4 ("drm/nouveau/disp: PIOR DP uses GPIO for HPD, not PMGR AUX interrupts")
On Wed, Aug 9, 2023 at 11:22 AM Takashi Iwai wrote: > > On Tue, 08 Aug 2023 12:39:32 +0200, > Karol Herbst wrote: > > > > On Mon, Aug 7, 2023 at 5:05 PM Borislav Petkov wrote: > > > > > > On Mon, Aug 07, 2023 at 01:49:42PM +0200, Karol Herbst wrote: > > > > in what way does it stop? Just not progressing? That would be kinda > > > > concerning. Mind tracing with what arguments `nvkm_uevent_add` is > > > > called with and without that patch? > > > > > > Well, me dumping those args I guess made the box not freeze before > > > catching a #PF over serial. Does that help? > > > > > > > > > [3.410135] Unpacking initramfs... > > > [3.416319] software IO TLB: mapped [mem > > > 0xa877d000-0xac77d000] (64MB) > > > [3.418227] Initialise system trusted keyrings > > > [3.432273] workingset: timestamp_bits=56 max_order=22 bucket_order=0 > > > [3.439006] ntfs: driver 2.1.32 [Flags: R/W]. > > > [3.443368] fuse: init (API version 7.38) > > > [3.447601] 9p: Installing v9fs 9p2000 file system support > > > [3.453223] Key type asymmetric registered > > > [3.457332] Asymmetric key parser 'x509' registered > > > [3.462236] Block layer SCSI generic (bsg) driver version 0.4 loaded > > > (major 250) > > > [3.475865] efifb: probing for efifb > > > [3.479458] efifb: framebuffer at 0xf900, using 1920k, total 1920k > > > [3.485969] efifb: mode is 800x600x32, linelength=3200, pages=1 > > > [3.491872] efifb: scrolling: redraw > > > [3.495438] efifb: Truecolor: size=8:8:8:8, shift=24:16:8:0 > > > [3.502349] Console: switching to colour frame buffer device 100x37 > > > [3.509564] fb0: EFI VGA frame buffer device > > > [3.514013] ACPI: \_PR_.CP00: Found 4 idle states > > > [3.518850] ACPI: \_PR_.CP01: Found 4 idle states > > > [3.523687] ACPI: \_PR_.CP02: Found 4 idle states > > > [3.528515] ACPI: \_PR_.CP03: Found 4 idle states > > > [3.533346] ACPI: \_PR_.CP04: Found 4 idle states > > > [3.538173] ACPI: \_PR_.CP05: Found 4 idle states > > > [3.543003] ACPI: \_PR_.CP06: Found 4 idle states > > > [3.544219] Freeing initrd memory: 8196K > > > [3.547844] ACPI: \_PR_.CP07: Found 4 idle states > > > [3.609542] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled > > > [3.616224] 00:05: ttyS0 at I/O 0x3f8 (irq = 4, base_baud = 115200) is > > > a 16550A > > > [3.625552] serial :00:16.3: enabling device ( -> 0003) > > > [3.633034] :00:16.3: ttyS1 at I/O 0xf0a0 (irq = 17, base_baud = > > > 115200) is a 16550A > > > [3.642451] Linux agpgart interface v0.103 > > > [3.647141] ACPI: bus type drm_connector registered > > > [3.653261] Console: switching to colour dummy device 80x25 > > > [3.659092] nouveau :03:00.0: vgaarb: deactivate vga console > > > [3.665174] nouveau :03:00.0: NVIDIA GT218 (0a8c00b1) > > > [3.784585] nouveau :03:00.0: bios: version 70.18.83.00.08 > > > [3.792244] nouveau :03:00.0: fb: 512 MiB DDR3 > > > [3.948786] nouveau :03:00.0: DRM: VRAM: 512 MiB > > > [3.953755] nouveau :03:00.0: DRM: GART: 1048576 MiB > > > [3.959073] nouveau :03:00.0: DRM: TMDS table version 2.0 > > > [3.964808] nouveau :03:00.0: DRM: DCB version 4.0 > > > [3.969938] nouveau :03:00.0: DRM: DCB outp 00: 02000360 > > > [3.976367] nouveau :03:00.0: DRM: DCB outp 01: 02000362 00020010 > > > [3.982792] nouveau :03:00.0: DRM: DCB outp 02: 028003a6 0f220010 > > > [3.989223] nouveau :03:00.0: DRM: DCB outp 03: 01011380 > > > [3.995647] nouveau :03:00.0: DRM: DCB outp 04: 08011382 00020010 > > > [4.002076] nouveau :03:00.0: DRM: DCB outp 05: 088113c6 0f220010 > > > [4.008511] nouveau :03:00.0: DRM: DCB conn 00: 00101064 > > > [4.014151] nouveau :03:00.0: DRM: DCB conn 01: 00202165 > > > [4.021710] nvkm_uevent_add: uevent: 0x888100242100, event: > > > 0x8881022de1a0, id: 0x0, bits: 0x1, func: 0x > > > [4.033680] nvkm_uevent_add: uevent: 0x888100242300, event: > > > 0x8881022de1a0, id: 0x0, bits: 0x1, func: 0x > > > [4.045429] nouveau :03:00.0: DRM: MM: using COPY for buffer copies > > > [4.052059] stackdepot: allocating hash table of 1048576 entries via > > > kvcalloc > > > [4.067191] nvkm_uevent_add: uevent: 0x888100242800, event: > > > 0x888104b3e260, id: 0x0, bits: 0x1, func: 0x > > > [4.078936] nvkm_uevent_add: uevent: 0x888100242900, event: > > > 0x888104b3e260, id: 0x1, bits: 0x1, func: 0x > > > [4.090514] nvkm_uevent_add: uevent: 0x888100242a00, event: > > > 0x888102091f28, id: 0x1, bits: 0x3, func: 0x8177b700 > > > [4.102118] tsc: Refined TSC clocksource calibration: 3591.345 MHz > > > [4.108342] clocksource: tsc: mask: 0x max_cycles: > > > 0x33c4635c383, max_idle_ns:
Re: 2b5d1c29f6c4 ("drm/nouveau/disp: PIOR DP uses GPIO for HPD, not PMGR AUX interrupts")
On Tue, 08 Aug 2023 12:39:32 +0200, Karol Herbst wrote: > > On Mon, Aug 7, 2023 at 5:05 PM Borislav Petkov wrote: > > > > On Mon, Aug 07, 2023 at 01:49:42PM +0200, Karol Herbst wrote: > > > in what way does it stop? Just not progressing? That would be kinda > > > concerning. Mind tracing with what arguments `nvkm_uevent_add` is > > > called with and without that patch? > > > > Well, me dumping those args I guess made the box not freeze before > > catching a #PF over serial. Does that help? > > > > > > [3.410135] Unpacking initramfs... > > [3.416319] software IO TLB: mapped [mem > > 0xa877d000-0xac77d000] (64MB) > > [3.418227] Initialise system trusted keyrings > > [3.432273] workingset: timestamp_bits=56 max_order=22 bucket_order=0 > > [3.439006] ntfs: driver 2.1.32 [Flags: R/W]. > > [3.443368] fuse: init (API version 7.38) > > [3.447601] 9p: Installing v9fs 9p2000 file system support > > [3.453223] Key type asymmetric registered > > [3.457332] Asymmetric key parser 'x509' registered > > [3.462236] Block layer SCSI generic (bsg) driver version 0.4 loaded > > (major 250) > > [3.475865] efifb: probing for efifb > > [3.479458] efifb: framebuffer at 0xf900, using 1920k, total 1920k > > [3.485969] efifb: mode is 800x600x32, linelength=3200, pages=1 > > [3.491872] efifb: scrolling: redraw > > [3.495438] efifb: Truecolor: size=8:8:8:8, shift=24:16:8:0 > > [3.502349] Console: switching to colour frame buffer device 100x37 > > [3.509564] fb0: EFI VGA frame buffer device > > [3.514013] ACPI: \_PR_.CP00: Found 4 idle states > > [3.518850] ACPI: \_PR_.CP01: Found 4 idle states > > [3.523687] ACPI: \_PR_.CP02: Found 4 idle states > > [3.528515] ACPI: \_PR_.CP03: Found 4 idle states > > [3.533346] ACPI: \_PR_.CP04: Found 4 idle states > > [3.538173] ACPI: \_PR_.CP05: Found 4 idle states > > [3.543003] ACPI: \_PR_.CP06: Found 4 idle states > > [3.544219] Freeing initrd memory: 8196K > > [3.547844] ACPI: \_PR_.CP07: Found 4 idle states > > [3.609542] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled > > [3.616224] 00:05: ttyS0 at I/O 0x3f8 (irq = 4, base_baud = 115200) is a > > 16550A > > [3.625552] serial :00:16.3: enabling device ( -> 0003) > > [3.633034] :00:16.3: ttyS1 at I/O 0xf0a0 (irq = 17, base_baud = > > 115200) is a 16550A > > [3.642451] Linux agpgart interface v0.103 > > [3.647141] ACPI: bus type drm_connector registered > > [3.653261] Console: switching to colour dummy device 80x25 > > [3.659092] nouveau :03:00.0: vgaarb: deactivate vga console > > [3.665174] nouveau :03:00.0: NVIDIA GT218 (0a8c00b1) > > [3.784585] nouveau :03:00.0: bios: version 70.18.83.00.08 > > [3.792244] nouveau :03:00.0: fb: 512 MiB DDR3 > > [3.948786] nouveau :03:00.0: DRM: VRAM: 512 MiB > > [3.953755] nouveau :03:00.0: DRM: GART: 1048576 MiB > > [3.959073] nouveau :03:00.0: DRM: TMDS table version 2.0 > > [3.964808] nouveau :03:00.0: DRM: DCB version 4.0 > > [3.969938] nouveau :03:00.0: DRM: DCB outp 00: 02000360 > > [3.976367] nouveau :03:00.0: DRM: DCB outp 01: 02000362 00020010 > > [3.982792] nouveau :03:00.0: DRM: DCB outp 02: 028003a6 0f220010 > > [3.989223] nouveau :03:00.0: DRM: DCB outp 03: 01011380 > > [3.995647] nouveau :03:00.0: DRM: DCB outp 04: 08011382 00020010 > > [4.002076] nouveau :03:00.0: DRM: DCB outp 05: 088113c6 0f220010 > > [4.008511] nouveau :03:00.0: DRM: DCB conn 00: 00101064 > > [4.014151] nouveau :03:00.0: DRM: DCB conn 01: 00202165 > > [4.021710] nvkm_uevent_add: uevent: 0x888100242100, event: > > 0x8881022de1a0, id: 0x0, bits: 0x1, func: 0x > > [4.033680] nvkm_uevent_add: uevent: 0x888100242300, event: > > 0x8881022de1a0, id: 0x0, bits: 0x1, func: 0x > > [4.045429] nouveau :03:00.0: DRM: MM: using COPY for buffer copies > > [4.052059] stackdepot: allocating hash table of 1048576 entries via > > kvcalloc > > [4.067191] nvkm_uevent_add: uevent: 0x888100242800, event: > > 0x888104b3e260, id: 0x0, bits: 0x1, func: 0x > > [4.078936] nvkm_uevent_add: uevent: 0x888100242900, event: > > 0x888104b3e260, id: 0x1, bits: 0x1, func: 0x > > [4.090514] nvkm_uevent_add: uevent: 0x888100242a00, event: > > 0x888102091f28, id: 0x1, bits: 0x3, func: 0x8177b700 > > [4.102118] tsc: Refined TSC clocksource calibration: 3591.345 MHz > > [4.108342] clocksource: tsc: mask: 0x max_cycles: > > 0x33c4635c383, max_idle_ns: 440795314831 ns > > [4.108401] nvkm_uevent_add: uevent: 0x8881020b6000, event: > > 0x888102091f28, id: 0xf, bits: 0x3, func: 0x8177b700 > > [4.129864] clocksource: Switched to clocksource tsc > > [
Re: 2b5d1c29f6c4 ("drm/nouveau/disp: PIOR DP uses GPIO for HPD, not PMGR AUX interrupts")
On Tue, Aug 08, 2023 at 12:39:32PM +0200, Karol Herbst wrote:
> ahh, that would have been good to know :)
Yeah, I didn't see it before - it would only freeze. Only after I added
the printk you requested.
> Mind figuring out what's exactly NULL inside nvif_object_mthd? Or
> rather what line `nvif_object_mthd+0x136` belongs to, then it should
> be easy to figure out what's wrong here.
That looks like this:
816ddfee: e8 8d 04 4e 00 callq 81bbe480
<__memcpy>
816ddff3: 41 8d 56 20 lea0x20(%r14),%edx
816ddff7: 49 8b 44 24 08 mov0x8(%r12),%rax
816ddffc: 83 fa 17cmp$0x17,%edx
816ddfff: 76 7d jbe816de07e
816de001: 49 39 c4cmp%rax,%r12
816de004: 74 45 je 816de04b
<--- RIP points here.
The 0x20 also fits the deref address: 0020.
Which means %rax is 0. Yap.
816de006: 48 8b 78 20 mov0x20(%rax),%rdi
816de00a: 4c 89 64 24 10 mov%r12,0x10(%rsp)
816de00f: 48 8b 40 38 mov0x38(%rax),%rax
816de013: c6 44 24 06 ff movb $0xff,0x6(%rsp)
816de018: 31 c9 xor%ecx,%ecx
816de01a: 48 89 e6mov%rsp,%rsi
816de01d: 48 8b 40 28 mov0x28(%rax),%rax
816de021: e8 3a 0c 4f 00 callq 81bcec60
<__x86_indirect_thunk_array>
Now, the preprocessed asm version of nvif/object.c says around here:
callmemcpy #
# drivers/gpu/drm/nouveau/nvif/object.c:160:ret = nvif_object_ioctl(object,
args, sizeof(*args) + size, NULL);
leal32(%r14), %edx #, _108
# drivers/gpu/drm/nouveau/nvif/object.c:33: struct nvif_client *client =
object->client;
movq8(%r12), %rax # object_19(D)->client, client
# drivers/gpu/drm/nouveau/nvif/object.c:38: if (size >= sizeof(*args) &&
args->v0.version == 0) {
cmpl$23, %edx #, _108
jbe .L69#,
# drivers/gpu/drm/nouveau/nvif/object.c:39: if (object !=
>object)
cmpq%rax, %r12 # client, object
je .L70#,
# drivers/gpu/drm/nouveau/nvif/object.c:47: return
client->driver->ioctl(client->object.priv, data, size, hack);
movq32(%rax), %rdi # client_109->object.priv,
client_109->object.priv
So I'd say that client is NULL. IINM.
movq%r12, 16(%rsp) # object, MEM[(union *)].v0.object
# drivers/gpu/drm/nouveau/nvif/object.c:47: return
client->driver->ioctl(client->object.priv, data, size, hack);
movq56(%rax), %rax # client_109->driver, client_109->driver
# drivers/gpu/drm/nouveau/nvif/object.c:43: args->v0.owner =
NVIF_IOCTL_V0_OWNER_ANY;
movb$-1, 6(%rsp)#, MEM[(union *)].v0.owner
.L64:
# drivers/gpu/drm/nouveau/nvif/object.c:47: return
client->driver->ioctl(client->object.priv, data, size, hack);
xorl%ecx, %ecx #
movq%rsp, %rsi #,
movq40(%rax), %rax #, _77->ioctl
call__x86_indirect_thunk_rax
# drivers/gpu/drm/nouveau/nvif/object.c:161:memcpy(data, args->mthd.data,
size);
> > [4.144676] #PF: supervisor read access in kernel mode
> > [4.144676] #PF: error_code(0x) - not-present page
> > [4.144676] PGD 0 P4D 0
> > [4.144676] Oops: [#1] PREEMPT SMP PTI
> > [4.144676] CPU: 2 PID: 1 Comm: swapper/0 Not tainted 6.5.0-rc5-dirty #1
> > [4.144676] Hardware name: Dell Inc. Precision T3600/0PTTT9, BIOS A13
> > 05/11/2014
> > [4.144676] RIP: 0010:nvif_object_mthd+0x136/0x1e0
> > [4.144676] Code: f2 4c 89 ee 48 8d 7c 24 20 66 89 04 24 c6 44 24 18 00
> > e8 8d 04 4e 00 41 8d 56 20 49 8b 44 24 08 83 fa 17 76 7d 49 39 c4 74 45
> > <48> 8b 78 20 4c 89 64 24 10 48 8b 40 38 c6 44 24 06 ff 31 c9 48 89
Opcode bytes around RIP look correct too:
./scripts/decodecode < /tmp/oops
[ 4.144676] Code: f2 4c 89 ee 48 8d 7c 24 20 66 89 04 24 c6 44 24 18 00 e8 8d
04 4e 00 41 8d 56 20 49 8b 44 24 08 83 fa 17 76 7d 49 39 c4 74 45 <48> 8b 78 20
4c 89 64 24 10 48 8b 40 38 c6 44 24 06 ff 31 c9 48 89
All code
0: f2 4c 89 ee repnz mov %r13,%rsi
4: 48 8d 7c 24 20 lea0x20(%rsp),%rdi
9: 66 89 04 24 mov%ax,(%rsp)
d: c6 44 24 18 00 movb $0x0,0x18(%rsp)
12: e8 8d 04 4e 00 callq 0x4e04a4
17: 41 8d 56 20 lea0x20(%r14),%edx
1b: 49 8b 44 24 08 mov0x8(%r12),%rax
20: 83 fa 17cmp$0x17,%edx
23: 76 7d jbe0xa2
25: 49 39 c4cmp%rax,%r12
28: 74 45 je 0x6f
2a:* 48 8b 78 20 mov0x20(%rax),%rdi <-- trapping
Re: 2b5d1c29f6c4 ("drm/nouveau/disp: PIOR DP uses GPIO for HPD, not PMGR AUX interrupts")
On Mon, Aug 7, 2023 at 5:05 PM Borislav Petkov wrote: > > On Mon, Aug 07, 2023 at 01:49:42PM +0200, Karol Herbst wrote: > > in what way does it stop? Just not progressing? That would be kinda > > concerning. Mind tracing with what arguments `nvkm_uevent_add` is > > called with and without that patch? > > Well, me dumping those args I guess made the box not freeze before > catching a #PF over serial. Does that help? > > > [3.410135] Unpacking initramfs... > [3.416319] software IO TLB: mapped [mem > 0xa877d000-0xac77d000] (64MB) > [3.418227] Initialise system trusted keyrings > [3.432273] workingset: timestamp_bits=56 max_order=22 bucket_order=0 > [3.439006] ntfs: driver 2.1.32 [Flags: R/W]. > [3.443368] fuse: init (API version 7.38) > [3.447601] 9p: Installing v9fs 9p2000 file system support > [3.453223] Key type asymmetric registered > [3.457332] Asymmetric key parser 'x509' registered > [3.462236] Block layer SCSI generic (bsg) driver version 0.4 loaded > (major 250) > [3.475865] efifb: probing for efifb > [3.479458] efifb: framebuffer at 0xf900, using 1920k, total 1920k > [3.485969] efifb: mode is 800x600x32, linelength=3200, pages=1 > [3.491872] efifb: scrolling: redraw > [3.495438] efifb: Truecolor: size=8:8:8:8, shift=24:16:8:0 > [3.502349] Console: switching to colour frame buffer device 100x37 > [3.509564] fb0: EFI VGA frame buffer device > [3.514013] ACPI: \_PR_.CP00: Found 4 idle states > [3.518850] ACPI: \_PR_.CP01: Found 4 idle states > [3.523687] ACPI: \_PR_.CP02: Found 4 idle states > [3.528515] ACPI: \_PR_.CP03: Found 4 idle states > [3.533346] ACPI: \_PR_.CP04: Found 4 idle states > [3.538173] ACPI: \_PR_.CP05: Found 4 idle states > [3.543003] ACPI: \_PR_.CP06: Found 4 idle states > [3.544219] Freeing initrd memory: 8196K > [3.547844] ACPI: \_PR_.CP07: Found 4 idle states > [3.609542] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled > [3.616224] 00:05: ttyS0 at I/O 0x3f8 (irq = 4, base_baud = 115200) is a > 16550A > [3.625552] serial :00:16.3: enabling device ( -> 0003) > [3.633034] :00:16.3: ttyS1 at I/O 0xf0a0 (irq = 17, base_baud = > 115200) is a 16550A > [3.642451] Linux agpgart interface v0.103 > [3.647141] ACPI: bus type drm_connector registered > [3.653261] Console: switching to colour dummy device 80x25 > [3.659092] nouveau :03:00.0: vgaarb: deactivate vga console > [3.665174] nouveau :03:00.0: NVIDIA GT218 (0a8c00b1) > [3.784585] nouveau :03:00.0: bios: version 70.18.83.00.08 > [3.792244] nouveau :03:00.0: fb: 512 MiB DDR3 > [3.948786] nouveau :03:00.0: DRM: VRAM: 512 MiB > [3.953755] nouveau :03:00.0: DRM: GART: 1048576 MiB > [3.959073] nouveau :03:00.0: DRM: TMDS table version 2.0 > [3.964808] nouveau :03:00.0: DRM: DCB version 4.0 > [3.969938] nouveau :03:00.0: DRM: DCB outp 00: 02000360 > [3.976367] nouveau :03:00.0: DRM: DCB outp 01: 02000362 00020010 > [3.982792] nouveau :03:00.0: DRM: DCB outp 02: 028003a6 0f220010 > [3.989223] nouveau :03:00.0: DRM: DCB outp 03: 01011380 > [3.995647] nouveau :03:00.0: DRM: DCB outp 04: 08011382 00020010 > [4.002076] nouveau :03:00.0: DRM: DCB outp 05: 088113c6 0f220010 > [4.008511] nouveau :03:00.0: DRM: DCB conn 00: 00101064 > [4.014151] nouveau :03:00.0: DRM: DCB conn 01: 00202165 > [4.021710] nvkm_uevent_add: uevent: 0x888100242100, event: > 0x8881022de1a0, id: 0x0, bits: 0x1, func: 0x > [4.033680] nvkm_uevent_add: uevent: 0x888100242300, event: > 0x8881022de1a0, id: 0x0, bits: 0x1, func: 0x > [4.045429] nouveau :03:00.0: DRM: MM: using COPY for buffer copies > [4.052059] stackdepot: allocating hash table of 1048576 entries via > kvcalloc > [4.067191] nvkm_uevent_add: uevent: 0x888100242800, event: > 0x888104b3e260, id: 0x0, bits: 0x1, func: 0x > [4.078936] nvkm_uevent_add: uevent: 0x888100242900, event: > 0x888104b3e260, id: 0x1, bits: 0x1, func: 0x > [4.090514] nvkm_uevent_add: uevent: 0x888100242a00, event: > 0x888102091f28, id: 0x1, bits: 0x3, func: 0x8177b700 > [4.102118] tsc: Refined TSC clocksource calibration: 3591.345 MHz > [4.108342] clocksource: tsc: mask: 0x max_cycles: > 0x33c4635c383, max_idle_ns: 440795314831 ns > [4.108401] nvkm_uevent_add: uevent: 0x8881020b6000, event: > 0x888102091f28, id: 0xf, bits: 0x3, func: 0x8177b700 > [4.129864] clocksource: Switched to clocksource tsc > [4.131478] [drm] Initialized nouveau 1.3.1 20120801 for :03:00.0 on > minor 0 > [4.143806] BUG: kernel NULL pointer dereference, address: 0020 ahh, that would have been good to know :) Mind figuring out
Re: 2b5d1c29f6c4 ("drm/nouveau/disp: PIOR DP uses GPIO for HPD, not PMGR AUX interrupts")
On Mon, Aug 07, 2023 at 01:49:42PM +0200, Karol Herbst wrote: > in what way does it stop? Just not progressing? That would be kinda > concerning. Mind tracing with what arguments `nvkm_uevent_add` is > called with and without that patch? Well, me dumping those args I guess made the box not freeze before catching a #PF over serial. Does that help? [3.410135] Unpacking initramfs... [3.416319] software IO TLB: mapped [mem 0xa877d000-0xac77d000] (64MB) [3.418227] Initialise system trusted keyrings [3.432273] workingset: timestamp_bits=56 max_order=22 bucket_order=0 [3.439006] ntfs: driver 2.1.32 [Flags: R/W]. [3.443368] fuse: init (API version 7.38) [3.447601] 9p: Installing v9fs 9p2000 file system support [3.453223] Key type asymmetric registered [3.457332] Asymmetric key parser 'x509' registered [3.462236] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 250) [3.475865] efifb: probing for efifb [3.479458] efifb: framebuffer at 0xf900, using 1920k, total 1920k [3.485969] efifb: mode is 800x600x32, linelength=3200, pages=1 [3.491872] efifb: scrolling: redraw [3.495438] efifb: Truecolor: size=8:8:8:8, shift=24:16:8:0 [3.502349] Console: switching to colour frame buffer device 100x37 [3.509564] fb0: EFI VGA frame buffer device [3.514013] ACPI: \_PR_.CP00: Found 4 idle states [3.518850] ACPI: \_PR_.CP01: Found 4 idle states [3.523687] ACPI: \_PR_.CP02: Found 4 idle states [3.528515] ACPI: \_PR_.CP03: Found 4 idle states [3.533346] ACPI: \_PR_.CP04: Found 4 idle states [3.538173] ACPI: \_PR_.CP05: Found 4 idle states [3.543003] ACPI: \_PR_.CP06: Found 4 idle states [3.544219] Freeing initrd memory: 8196K [3.547844] ACPI: \_PR_.CP07: Found 4 idle states [3.609542] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled [3.616224] 00:05: ttyS0 at I/O 0x3f8 (irq = 4, base_baud = 115200) is a 16550A [3.625552] serial :00:16.3: enabling device ( -> 0003) [3.633034] :00:16.3: ttyS1 at I/O 0xf0a0 (irq = 17, base_baud = 115200) is a 16550A [3.642451] Linux agpgart interface v0.103 [3.647141] ACPI: bus type drm_connector registered [3.653261] Console: switching to colour dummy device 80x25 [3.659092] nouveau :03:00.0: vgaarb: deactivate vga console [3.665174] nouveau :03:00.0: NVIDIA GT218 (0a8c00b1) [3.784585] nouveau :03:00.0: bios: version 70.18.83.00.08 [3.792244] nouveau :03:00.0: fb: 512 MiB DDR3 [3.948786] nouveau :03:00.0: DRM: VRAM: 512 MiB [3.953755] nouveau :03:00.0: DRM: GART: 1048576 MiB [3.959073] nouveau :03:00.0: DRM: TMDS table version 2.0 [3.964808] nouveau :03:00.0: DRM: DCB version 4.0 [3.969938] nouveau :03:00.0: DRM: DCB outp 00: 02000360 [3.976367] nouveau :03:00.0: DRM: DCB outp 01: 02000362 00020010 [3.982792] nouveau :03:00.0: DRM: DCB outp 02: 028003a6 0f220010 [3.989223] nouveau :03:00.0: DRM: DCB outp 03: 01011380 [3.995647] nouveau :03:00.0: DRM: DCB outp 04: 08011382 00020010 [4.002076] nouveau :03:00.0: DRM: DCB outp 05: 088113c6 0f220010 [4.008511] nouveau :03:00.0: DRM: DCB conn 00: 00101064 [4.014151] nouveau :03:00.0: DRM: DCB conn 01: 00202165 [4.021710] nvkm_uevent_add: uevent: 0x888100242100, event: 0x8881022de1a0, id: 0x0, bits: 0x1, func: 0x [4.033680] nvkm_uevent_add: uevent: 0x888100242300, event: 0x8881022de1a0, id: 0x0, bits: 0x1, func: 0x [4.045429] nouveau :03:00.0: DRM: MM: using COPY for buffer copies [4.052059] stackdepot: allocating hash table of 1048576 entries via kvcalloc [4.067191] nvkm_uevent_add: uevent: 0x888100242800, event: 0x888104b3e260, id: 0x0, bits: 0x1, func: 0x [4.078936] nvkm_uevent_add: uevent: 0x888100242900, event: 0x888104b3e260, id: 0x1, bits: 0x1, func: 0x [4.090514] nvkm_uevent_add: uevent: 0x888100242a00, event: 0x888102091f28, id: 0x1, bits: 0x3, func: 0x8177b700 [4.102118] tsc: Refined TSC clocksource calibration: 3591.345 MHz [4.108342] clocksource: tsc: mask: 0x max_cycles: 0x33c4635c383, max_idle_ns: 440795314831 ns [4.108401] nvkm_uevent_add: uevent: 0x8881020b6000, event: 0x888102091f28, id: 0xf, bits: 0x3, func: 0x8177b700 [4.129864] clocksource: Switched to clocksource tsc [4.131478] [drm] Initialized nouveau 1.3.1 20120801 for :03:00.0 on minor 0 [4.143806] BUG: kernel NULL pointer dereference, address: 0020 [4.144676] #PF: supervisor read access in kernel mode [4.144676] #PF: error_code(0x) - not-present page [4.144676] PGD 0 P4D 0 [4.144676] Oops: [#1] PREEMPT SMP PTI [4.144676] CPU: 2 PID: 1 Comm: swapper/0 Not tainted 6.5.0-rc5-dirty #1 [4.144676]
Re: 2b5d1c29f6c4 ("drm/nouveau/disp: PIOR DP uses GPIO for HPD, not PMGR AUX interrupts")
On Sun, Aug 6, 2023 at 11:40 PM Borislav Petkov wrote: > > Hi folks, > > the patch in $Subject breaks booting here on one of my test boxes, see > below. > > Reverting it ontop of -rc4 fixes the issue. > > Thx. > > [3.580535] ACPI: \_PR_.CP04: Found 4 idle states > [3.585694] ACPI: \_PR_.CP05: Found 4 idle states > [3.590852] ACPI: \_PR_.CP06: Found 4 idle states > [3.596037] ACPI: \_PR_.CP07: Found 4 idle states > [3.644065] Freeing initrd memory: 6740K > [3.742932] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled > [3.750409] 00:05: ttyS0 at I/O 0x3f8 (irq = 4, base_baud = 115200) is a > 16550A > [3.762111] serial :00:16.3: enabling device ( -> 0003) > [3.771589] :00:16.3: ttyS1 at I/O 0xf0a0 (irq = 17, base_baud = > 115200) is a 16550A > [3.782503] Linux agpgart interface v0.103 > [3.787805] ACPI: bus type drm_connector registered > > <--- boot stops here. > in what way does it stop? Just not progressing? That would be kinda concerning. Mind tracing with what arguments `nvkm_uevent_add` is called with and without that patch? Also a boot log with `nouveau.debug=trace` might be helpful here. > It should continue with this: > > [3.795491] Console: switching to colour dummy device 80x25 > [3.801933] nouveau :03:00.0: vgaarb: deactivate vga console > [3.808303] nouveau :03:00.0: NVIDIA GT218 (0a8c00b1) > [3.931002] nouveau :03:00.0: bios: version 70.18.83.00.08 > [3.941731] nouveau :03:00.0: fb: 512 MiB DDR3 > [4.110348] tsc: Refined TSC clocksource calibration: 3591.349 MHz > [4.116627] clocksource: tsc: mask: 0x max_cycles: > 0x33c466a1ab5, max_idle_ns: 440795209767 ns > [4.126871] clocksource: Switched to clocksource tsc > [4.252013] nouveau :03:00.0: DRM: VRAM: 512 MiB > [4.257088] nouveau :03:00.0: DRM: GART: 1048576 MiB > [4.262501] nouveau :03:00.0: DRM: TMDS table version 2.0 > [4.268333] nouveau :03:00.0: DRM: DCB version 4.0 > [4.273561] nouveau :03:00.0: DRM: DCB outp 00: 02000360 > [4.280104] nouveau :03:00.0: DRM: DCB outp 01: 02000362 00020010 > [4.286630] nouveau :03:00.0: DRM: DCB outp 02: 028003a6 0f220010 > [4.293176] nouveau :03:00.0: DRM: DCB outp 03: 01011380 > [4.299711] nouveau :03:00.0: DRM: DCB outp 04: 08011382 00020010 > [4.306243] nouveau :03:00.0: DRM: DCB outp 05: 088113c6 0f220010 > [4.312772] nouveau :03:00.0: DRM: DCB conn 00: 00101064 > [4.318520] nouveau :03:00.0: DRM: DCB conn 01: 00202165 > [4.329488] nouveau :03:00.0: DRM: MM: using COPY for buffer copies > [4.336261] stackdepot: allocating hash table of 1048576 entries via > kvcalloc > ... > > > -- > Regards/Gruss, > Boris. > > https://people.kernel.org/tglx/notes-about-netiquette >
Re: 2b5d1c29f6c4 ("drm/nouveau/disp: PIOR DP uses GPIO for HPD, not PMGR AUX interrupts")
[CCing the regression list, as it should be in the loop for regressions: https://docs.kernel.org/admin-guide/reporting-regressions.html] [TLDR: I'm adding this report to the list of tracked Linux kernel regressions; the text you find below is based on a few templates paragraphs you might have encountered already in similar form. See link in footer if these mails annoy you.] On 06.08.23 23:31, Borislav Petkov wrote: > > the patch in $Subject Side note, in case anyone cares: it was also included in 6.4.7. > breaks booting here on one of my test boxes, see > below. > > Reverting it ontop of -rc4 fixes the issue. > > Thx. Thanks for the report. To be sure the issue doesn't fall through the cracks unnoticed, I'm adding it to regzbot, the Linux kernel regression tracking bot: #regzbot ^introduced 2b5d1c29f6c4 #regzbot title drm/nouveau: stopped booting #regzbot ignore-activity This isn't a regression? This issue or a fix for it are already discussed somewhere else? It was fixed already? You want to clarify when the regression started to happen? Or point out I got the title or something else totally wrong? Then just reply and tell me -- ideally while also telling regzbot about it, as explained by the page listed in the footer of this mail. Developers: When fixing the issue, remember to add 'Link:' tags pointing to the report (the parent of this mail). See page linked in footer for details. Ciao, Thorsten (wearing his 'the Linux kernel's regression tracker' hat) -- Everything you wanna know about Linux kernel regression tracking: https://linux-regtracking.leemhuis.info/about/#tldr That page also explains what to do if mails like this annoy you. > [3.580535] ACPI: \_PR_.CP04: Found 4 idle states > [3.585694] ACPI: \_PR_.CP05: Found 4 idle states > [3.590852] ACPI: \_PR_.CP06: Found 4 idle states > [3.596037] ACPI: \_PR_.CP07: Found 4 idle states > [3.644065] Freeing initrd memory: 6740K > [3.742932] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled > [3.750409] 00:05: ttyS0 at I/O 0x3f8 (irq = 4, base_baud = 115200) is a > 16550A > [3.762111] serial :00:16.3: enabling device ( -> 0003) > [3.771589] :00:16.3: ttyS1 at I/O 0xf0a0 (irq = 17, base_baud = > 115200) is a 16550A > [3.782503] Linux agpgart interface v0.103 > [3.787805] ACPI: bus type drm_connector registered > > <--- boot stops here. > > It should continue with this: > > [3.795491] Console: switching to colour dummy device 80x25 > [3.801933] nouveau :03:00.0: vgaarb: deactivate vga console > [3.808303] nouveau :03:00.0: NVIDIA GT218 (0a8c00b1) > [3.931002] nouveau :03:00.0: bios: version 70.18.83.00.08 > [3.941731] nouveau :03:00.0: fb: 512 MiB DDR3 > [4.110348] tsc: Refined TSC clocksource calibration: 3591.349 MHz > [4.116627] clocksource: tsc: mask: 0x max_cycles: > 0x33c466a1ab5, max_idle_ns: 440795209767 ns > [4.126871] clocksource: Switched to clocksource tsc > [4.252013] nouveau :03:00.0: DRM: VRAM: 512 MiB > [4.257088] nouveau :03:00.0: DRM: GART: 1048576 MiB > [4.262501] nouveau :03:00.0: DRM: TMDS table version 2.0 > [4.268333] nouveau :03:00.0: DRM: DCB version 4.0 > [4.273561] nouveau :03:00.0: DRM: DCB outp 00: 02000360 > [4.280104] nouveau :03:00.0: DRM: DCB outp 01: 02000362 00020010 > [4.286630] nouveau :03:00.0: DRM: DCB outp 02: 028003a6 0f220010 > [4.293176] nouveau :03:00.0: DRM: DCB outp 03: 01011380 > [4.299711] nouveau :03:00.0: DRM: DCB outp 04: 08011382 00020010 > [4.306243] nouveau :03:00.0: DRM: DCB outp 05: 088113c6 0f220010 > [4.312772] nouveau :03:00.0: DRM: DCB conn 00: 00101064 > [4.318520] nouveau :03:00.0: DRM: DCB conn 01: 00202165 > [4.329488] nouveau :03:00.0: DRM: MM: using COPY for buffer copies > [4.336261] stackdepot: allocating hash table of 1048576 entries via > kvcalloc > ... > >
2b5d1c29f6c4 ("drm/nouveau/disp: PIOR DP uses GPIO for HPD, not PMGR AUX interrupts")
Hi folks, the patch in $Subject breaks booting here on one of my test boxes, see below. Reverting it ontop of -rc4 fixes the issue. Thx. [3.580535] ACPI: \_PR_.CP04: Found 4 idle states [3.585694] ACPI: \_PR_.CP05: Found 4 idle states [3.590852] ACPI: \_PR_.CP06: Found 4 idle states [3.596037] ACPI: \_PR_.CP07: Found 4 idle states [3.644065] Freeing initrd memory: 6740K [3.742932] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled [3.750409] 00:05: ttyS0 at I/O 0x3f8 (irq = 4, base_baud = 115200) is a 16550A [3.762111] serial :00:16.3: enabling device ( -> 0003) [3.771589] :00:16.3: ttyS1 at I/O 0xf0a0 (irq = 17, base_baud = 115200) is a 16550A [3.782503] Linux agpgart interface v0.103 [3.787805] ACPI: bus type drm_connector registered <--- boot stops here. It should continue with this: [3.795491] Console: switching to colour dummy device 80x25 [3.801933] nouveau :03:00.0: vgaarb: deactivate vga console [3.808303] nouveau :03:00.0: NVIDIA GT218 (0a8c00b1) [3.931002] nouveau :03:00.0: bios: version 70.18.83.00.08 [3.941731] nouveau :03:00.0: fb: 512 MiB DDR3 [4.110348] tsc: Refined TSC clocksource calibration: 3591.349 MHz [4.116627] clocksource: tsc: mask: 0x max_cycles: 0x33c466a1ab5, max_idle_ns: 440795209767 ns [4.126871] clocksource: Switched to clocksource tsc [4.252013] nouveau :03:00.0: DRM: VRAM: 512 MiB [4.257088] nouveau :03:00.0: DRM: GART: 1048576 MiB [4.262501] nouveau :03:00.0: DRM: TMDS table version 2.0 [4.268333] nouveau :03:00.0: DRM: DCB version 4.0 [4.273561] nouveau :03:00.0: DRM: DCB outp 00: 02000360 [4.280104] nouveau :03:00.0: DRM: DCB outp 01: 02000362 00020010 [4.286630] nouveau :03:00.0: DRM: DCB outp 02: 028003a6 0f220010 [4.293176] nouveau :03:00.0: DRM: DCB outp 03: 01011380 [4.299711] nouveau :03:00.0: DRM: DCB outp 04: 08011382 00020010 [4.306243] nouveau :03:00.0: DRM: DCB outp 05: 088113c6 0f220010 [4.312772] nouveau :03:00.0: DRM: DCB conn 00: 00101064 [4.318520] nouveau :03:00.0: DRM: DCB conn 01: 00202165 [4.329488] nouveau :03:00.0: DRM: MM: using COPY for buffer copies [4.336261] stackdepot: allocating hash table of 1048576 entries via kvcalloc ... -- Regards/Gruss, Boris. https://people.kernel.org/tglx/notes-about-netiquette
