On Thu, 7 Aug 2014 07:53:09 +0900 Carsten Haitzler (The Rasterman) <ras...@rasterman.com> wrote:
>On Wed, 6 Aug 2014 17:57:05 -0300 Gustavo Sverzut Barbieri ><barbi...@gmail.com> said: > >> update, this is caused by efl/src/lib/ecore_x/xlib/ecore_x_vsync.c >> "#define ECORE_X_VSYNC_DRM 1". If you remove that line (or #undef the >> sym), it works, now to find out the actual call that triggers it to >> produce a test case for them... > >aaah shit. the code is really simple - it really does one of 4 things. >open /dev/dri/card0, call a drm lib call to schedule a new vsync >event, and then select to listen on the drm fd with a timeout and then >use drm call to "read" the fd for the event info. one of those would >do it. given that, i would imagine it's the schedule of a new vsync >interrupt one. > >is there a nice simple way to know you have a vbox virtual driver in >the kernel and are a guest? i can put in something to veto it (eg >something in /proc or /sys - some file that exists only inside vbox if >the guest driver is there - i can put in a simple stat for it and >avoid if there)? > If I'm not mistaken, /proc/cpuinfo string output should say something to the effect that's it's a vbox, but I don't have one to check to know for sure... kvm vms say bochs as the vendor_id or model name (IIRC). -C >> On Wed, Aug 6, 2014 at 12:38 PM, Gustavo Sverzut Barbieri >> <barbi...@gmail.com> wrote: >> > sorry for the noise, this has nothing to do with Enlightenment or >> > new vsync. I've disabled it and still happens, we're just >> > triggering a bug in drm. >> > >> > if you suffer from this problem just remove >> > virtualbox-guest-modules and you'll fallback to fbdev without >> > problems (just setting X to use fbdev does not help, you need to >> > remove vboxvideo.ko so it's never loaded). >> > >> > On Wed, Aug 6, 2014 at 11:42 AM, Gustavo Sverzut Barbieri >> > <barbi...@gmail.com> wrote: >> >> Hi all, >> >> >> >> Just a heads up that recent Enlightenment (GIT) is causing >> >> problems with ArchLinux vanilla kernel (3.15.8-1-ARCH), at least >> >> running inside VirtualBox 4.3.14. >> >> >> >> I'm trying to isolate the problem to report that to kernel guys >> >> since a Kernel Oops is always a kernel bug, until then watch out >> >> if you want to update and run similar setup. >> >> >> >> The relevant dmesg part is: >> >> >> >> [ 7.142526] BUG: unable to handle kernel NULL pointer >> >> dereference at (null) [ 7.142532] IP: [< (null)>] (null) >> >> [ 7.142534] *pde = 00000000 >> >> [ 7.142536] Oops: 0000 [#1] PREEMPT SMP >> >> [ 7.142539] Modules linked in: ext4 crc16 mbcache jbd2 ppdev >> >> snd_intel8x0 snd_ac97_codec intel_rapl microcode ac97_bus pcspkr >> >> snd_pcm psmouse serio_raw snd_timer i2c_piix4 joydev mousedev snd >> >> soundcore mac_hid e1000 parport_pc parport floppy(+) ac battery >> >> intel_agp intel_gtt button evdev vboxvideo(O) drm agpgart i2c_core >> >> vboxsf(O) vboxguest(O) hid_generic usbhid hid crc32c_generic >> >> btrfs xor raid6_pq sd_mod crc_t10dif crct10dif_common atkbd >> >> libps2 ohci_pci ohci_hcd ehci_pci ehci_hcd ahci libahci libata >> >> scsi_mod usbcore usb_common i8042 serio >> >> [ 7.142562] CPU: 0 PID: 254 Comm: enlightenment Tainted: G >> >> O 3.15.8-1-ARCH #1 >> >> [ 7.142564] Hardware name: innotek GmbH VirtualBox/VirtualBox, >> >> BIOS VirtualBox 12/01/2006 >> >> [ 7.142566] task: f39fd2c0 ti: f3a58000 task.ti: f3a58000 >> >> [ 7.142568] EIP: 0060:[<00000000>] EFLAGS: 00210046 CPU: 0 >> >> [ 7.142570] EIP is at 0x0 >> >> [ 7.142572] EAX: f5228400 EBX: f5228400 ECX: f8b7d140 EDX: >> >> 00000000 [ 7.142573] ESI: f9fdb560 EDI: 00000000 EBP: f3a59de4 >> >> ESP: f3a59d90 [ 7.142574] DS: 007b ES: 007b FS: 00d8 GS: 00e0 >> >> SS: 0068 [ 7.142576] CR0: 80050033 CR2: 00000000 CR3: 33a5c000 >> >> CR4: 000006d0 [ 7.142581] Stack: >> >> [ 7.142583] f9fda8c2 f53a1d90 f5228400 f5228438 f5121cc0 >> >> 00000000 f539f9c0 f3a59db4 >> >> [ 7.142586] f9fdd1e0 00200046 f52284e8 f52284ea 00200246 >> >> 00000000 00000000 f5b75024 >> >> [ 7.142589] f539f9c0 c29a0d46 f5228400 f9fdb560 04000001 >> >> f3a59e44 f9fdb5d8 f57cf948 >> >> [ 7.142592] Call Trace: >> >> [ 7.142601] [<f9fda8c2>] ? drm_vblank_get+0xd2/0x240 [drm] >> >> [ 7.142607] [<f9fdd1e0>] ? drm_minor_release+0x10/0x20 [drm] >> >> [ 7.142613] [<f9fdb560>] ? drm_modeset_ctl+0x70/0x70 [drm] >> >> [ 7.142617] [<f9fdb5d8>] drm_wait_vblank+0x78/0x5e0 [drm] >> >> [ 7.142622] [<c12320e0>] ? lockref_put_or_lock+0x20/0x40 >> >> [ 7.142625] [<c11835f6>] ? mntput_no_expire+0x26/0x160 >> >> [ 7.142629] [<f9fdb560>] ? drm_modeset_ctl+0x70/0x70 [drm] >> >> [ 7.142633] [<f9fd7585>] drm_ioctl+0x1f5/0x560 [drm] >> >> [ 7.142637] [<f9fdb560>] ? drm_modeset_ctl+0x70/0x70 [drm] >> >> [ 7.142641] [<c1175d2d>] ? do_filp_open+0x3d/0xa0 >> >> [ 7.142645] [<f9fd7390>] ? drm_copy_field+0x70/0x70 [drm] >> >> [ 7.142648] [<c11782c2>] do_vfs_ioctl+0x302/0x4f0 >> >> [ 7.142651] [<c11713bd>] ? final_putname+0x1d/0x40 >> >> [ 7.142653] [<c11713bd>] ? final_putname+0x1d/0x40 >> >> [ 7.142656] [<c10ad8f0>] ? ktime_get_ts+0x40/0x140 >> >> [ 7.142658] [<c1181547>] ? __fget+0x57/0x90 >> >> [ 7.142661] [<c1178530>] SyS_ioctl+0x80/0x90 >> >> [ 7.142665] [<c14575e3>] sysenter_do_call+0x12/0x12 >> >> [ 7.142666] Code: Bad EIP value. >> >> [ 7.142669] EIP: [<00000000>] 0x0 SS:ESP 0068:f3a59d90 >> >> [ 7.142672] CR2: 0000000000000000 >> >> [ 7.142674] ---[ end trace 9c935fa0060b0fa8 ]--- >> >> [ 7.142677] note: enlightenment[254] exited with preempt_count >> >> 2 >> >> >> >> If someone has the same problem running outside of VirtualBox let >> >> me know, likely kernel guys will not look at it since it's >> >> "tainted", however I don't think there is any relation to that. >> >> >> >> -- >> >> Gustavo Sverzut Barbieri >> >> -------------------------------------- >> >> Mobile: +55 (19) 99225-2202 >> >> Contact: http://www.gustavobarbieri.com.br/contact >> > >> > >> > >> > -- >> > Gustavo Sverzut Barbieri >> > -------------------------------------- >> > Mobile: +55 (19) 99225-2202 >> > Contact: http://www.gustavobarbieri.com.br/contact >> >> >> >> -- >> Gustavo Sverzut Barbieri >> -------------------------------------- >> Mobile: +55 (19) 99225-2202 >> Contact: http://www.gustavobarbieri.com.br/contact >> >> ------------------------------------------------------------------------------ >> Infragistics Professional >> Build stunning WinForms apps today! >> Reboot your WinForms applications with our WinForms controls. >> Build a bridge from your legacy apps to the future. >> http://pubads.g.doubleclick.net/gampad/clk?id=153845071&iu=/4140/ostg.clktrk >> _______________________________________________ >> enlightenment-devel mailing list >> enlightenment-de...@lists.sourceforge.net >> https://lists.sourceforge.net/lists/listinfo/enlightenment-devel >> > > ------------------------------------------------------------------------------ Infragistics Professional Build stunning WinForms apps today! 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