Re: [Regression/Oops] nsc-ircc: 4.3.0rc6/rc7 No backlight on Thinkpad T60P
Looks like Ville has tracked down a possible problem. Will patch/rebuild and confirm whether it solves my problem. https://lkml.org/lkml/2015/10/25/284 Simon. On Tue, October 27, 2015 9:07 am, Simon Wood wrote: > Tried the latest kernel and have the issue where the LCD backlight does > not light (ie dark screen) after the kernel has booted. > > It appears that there is a 'oops' with the nsc-ircc driver, and I assume > that this is the root of the problem. 4.3.0rc6 and rc7 are bad, rc2 seems > OK. > > > -- > Oct 23 07:35:08 retrobox kernel: [ 23.640044] nsc-ircc, driver loaded > (Dag Brattli) > Oct 23 07:35:08 retrobox kernel: [ 23.640730] BUG: unable to handle > kernel NULL pointer dereference at 0130 Oct 23 07:35:08 retrobox > kernel: [ 23.641422] IP: [] > arch_dma_alloc_attrs+0x12/0x70 Oct 23 07:35:08 retrobox kernel: [ > 23.641953] *pdpt = 363cb001 > *pde = > Oct 23 07:35:08 retrobox kernel: [ 23.642517] Oops: [#1] SMP > Oct 23 07:35:08 retrobox kernel: [ 23.642849] Modules linked in: > nsc_ircc(+) snd_seq_device snd_timer snd floppy(+) irda soundcore crc_ccitt > shpchp 8250_fintek video mac_hid parport_pc ppdev lp parport autofs4 > e1000e psmouse ptp pata_acpi pps_core Oct 23 07:35:08 retrobox kernel: [ > 23.644011] CPU: 0 PID: 267 Comm: > systemd-udevd Not tainted 4.3.0-rc6-g920+ #10 Oct 23 07:35:08 retrobox > kernel: [ 23.644011] Hardware name: LENOVO > 2008VPX/2008VPX, BIOS 79ETE5WW (2.25 ) 08/27/2009 > Oct 23 07:35:08 retrobox kernel: [ 23.644011] task: f37c71c0 ti: > f63cc000 task.ti: f63cc000 Oct 23 07:35:08 retrobox kernel: [ 23.644011] > EIP: 0060:[] > EFLAGS: 00010202 CPU: 0 > Oct 23 07:35:08 retrobox kernel: [ 23.644011] EIP is at > arch_dma_alloc_attrs+0x12/0x70 Oct 23 07:35:08 retrobox kernel: [ > 23.644011] EAX: f63cdd08 EBX: > ECX: 80d0 EDX: f63cdd0c > Oct 23 07:35:08 retrobox kernel: [ 23.644011] ESI: f6afe66c EDI: > c1a305c0 EBP: f63cdd00 ESP: f63cdcfc Oct 23 07:35:08 retrobox kernel: [ > 23.644011] DS: 007b ES: 007b FS: > 00d8 GS: 00e0 SS: 0068 > Oct 23 07:35:08 retrobox kernel: [ 23.644011] CR0: 80050033 CR2: > 0130 CR3: 36945200 CR4: 06f0 > Oct 23 07:35:08 retrobox kernel: [ 23.644011] Stack: > Oct 23 07:35:08 retrobox kernel: [ 23.644011] 3830 f63cdd20 > f8532a11 80d0 f63cdd68 f6afe000 f6afe500 Oct 23 07:35:08 > retrobox kernel: [ 23.644011] f6afe598 f63cdd68 f85371c9 c19ce2e2 > f85340bc f63cddc8 f63cdd58 Oct 23 07:35:08 retrobox kernel: [ > 23.644011] c10b9be1 > 0006 f8533267 f63cdd6c f63cdd60 > Oct 23 07:35:08 retrobox kernel: [ 23.644011] Call Trace: > Oct 23 07:35:08 retrobox kernel: [ 23.644011] [] > dma_alloc_attrs.constprop.18+0x4b/0x71 [nsc_ircc] Oct 23 07:35:08 retrobox > kernel: [ 23.644011] [] > nsc_ircc_open+0x1c9/0x42c [nsc_ircc] Oct 23 07:35:08 retrobox kernel: [ > 23.644011] [] ? > vprintk_default+0x41/0x60 Oct 23 07:35:08 retrobox kernel: [ 23.644011] > [] > nsc_ircc_init+0x1b8/0xbd4 [nsc_ircc] Oct 23 07:35:08 retrobox kernel: [ > 23.644011] [] > do_one_initcall+0xc6/0x200 Oct 23 07:35:08 retrobox kernel: [ 23.644011] > [] ? > nsc_ircc_open+0x42c/0x42c [nsc_ircc] Oct 23 07:35:08 retrobox kernel: [ > 23.644011] [] ? > nsc_ircc_open+0x42c/0x42c [nsc_ircc] Oct 23 07:35:08 retrobox kernel: [ > 23.644011] [] ? > do_one_initcall+0xc6/0x200 Oct 23 07:35:08 retrobox kernel: [ 23.644011] > [] ? > nsc_ircc_open+0x42c/0x42c [nsc_ircc] Oct 23 07:35:08 retrobox kernel: [ > 23.644011] [] ? > preempt_schedule_common+0x1b/0x40 Oct 23 07:35:08 retrobox kernel: [ > 23.644011] [] ? > _cond_resched+0x25/0x30 > -- > > > Cheers, > Simon. -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
[Regression/Oops] nsc-ircc: 4.3.0rc6/rc7 No backlight on Thinkpad T60P
Tried the latest kernel and have the issue where the LCD backlight does not light (ie dark screen) after the kernel has booted. It appears that there is a 'oops' with the nsc-ircc driver, and I assume that this is the root of the problem. 4.3.0rc6 and rc7 are bad, rc2 seems OK. -- Oct 23 07:35:08 retrobox kernel: [ 23.640044] nsc-ircc, driver loaded (Dag Brattli) Oct 23 07:35:08 retrobox kernel: [ 23.640730] BUG: unable to handle kernel NULL pointer dereference at 0130 Oct 23 07:35:08 retrobox kernel: [ 23.641422] IP: [] arch_dma_alloc_attrs+0x12/0x70 Oct 23 07:35:08 retrobox kernel: [ 23.641953] *pdpt = 363cb001 *pde = Oct 23 07:35:08 retrobox kernel: [ 23.642517] Oops: [#1] SMP Oct 23 07:35:08 retrobox kernel: [ 23.642849] Modules linked in: nsc_ircc(+) snd_seq_device snd_timer snd floppy(+) irda soundcore crc_ccitt shpchp 8250_fintek video mac_hid parport_pc ppdev lp parport autofs4 e1000e psmouse ptp pata_acpi pps_core Oct 23 07:35:08 retrobox kernel: [ 23.644011] CPU: 0 PID: 267 Comm: systemd-udevd Not tainted 4.3.0-rc6-g920+ #10 Oct 23 07:35:08 retrobox kernel: [ 23.644011] Hardware name: LENOVO 2008VPX/2008VPX, BIOS 79ETE5WW (2.25 ) 08/27/2009 Oct 23 07:35:08 retrobox kernel: [ 23.644011] task: f37c71c0 ti: f63cc000 task.ti: f63cc000 Oct 23 07:35:08 retrobox kernel: [ 23.644011] EIP: 0060:[] EFLAGS: 00010202 CPU: 0 Oct 23 07:35:08 retrobox kernel: [ 23.644011] EIP is at arch_dma_alloc_attrs+0x12/0x70 Oct 23 07:35:08 retrobox kernel: [ 23.644011] EAX: f63cdd08 EBX: ECX: 80d0 EDX: f63cdd0c Oct 23 07:35:08 retrobox kernel: [ 23.644011] ESI: f6afe66c EDI: c1a305c0 EBP: f63cdd00 ESP: f63cdcfc Oct 23 07:35:08 retrobox kernel: [ 23.644011] DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068 Oct 23 07:35:08 retrobox kernel: [ 23.644011] CR0: 80050033 CR2: 0130 CR3: 36945200 CR4: 06f0 Oct 23 07:35:08 retrobox kernel: [ 23.644011] Stack: Oct 23 07:35:08 retrobox kernel: [ 23.644011] 3830 f63cdd20 f8532a11 80d0 f63cdd68 f6afe000 f6afe500 Oct 23 07:35:08 retrobox kernel: [ 23.644011] f6afe598 f63cdd68 f85371c9 c19ce2e2 f85340bc f63cddc8 f63cdd58 Oct 23 07:35:08 retrobox kernel: [ 23.644011] c10b9be1 0006 f8533267 f63cdd6c f63cdd60 Oct 23 07:35:08 retrobox kernel: [ 23.644011] Call Trace: Oct 23 07:35:08 retrobox kernel: [ 23.644011] [] dma_alloc_attrs.constprop.18+0x4b/0x71 [nsc_ircc] Oct 23 07:35:08 retrobox kernel: [ 23.644011] [] nsc_ircc_open+0x1c9/0x42c [nsc_ircc] Oct 23 07:35:08 retrobox kernel: [ 23.644011] [] ? vprintk_default+0x41/0x60 Oct 23 07:35:08 retrobox kernel: [ 23.644011] [] nsc_ircc_init+0x1b8/0xbd4 [nsc_ircc] Oct 23 07:35:08 retrobox kernel: [ 23.644011] [] do_one_initcall+0xc6/0x200 Oct 23 07:35:08 retrobox kernel: [ 23.644011] [] ? nsc_ircc_open+0x42c/0x42c [nsc_ircc] Oct 23 07:35:08 retrobox kernel: [ 23.644011] [] ? nsc_ircc_open+0x42c/0x42c [nsc_ircc] Oct 23 07:35:08 retrobox kernel: [ 23.644011] [] ? do_one_initcall+0xc6/0x200 Oct 23 07:35:08 retrobox kernel: [ 23.644011] [] ? nsc_ircc_open+0x42c/0x42c [nsc_ircc] Oct 23 07:35:08 retrobox kernel: [ 23.644011] [] ? preempt_schedule_common+0x1b/0x40 Oct 23 07:35:08 retrobox kernel: [ 23.644011] [] ? _cond_resched+0x25/0x30 -- Cheers, Simon.syslog-4.3.0-rc6-20151022-bad -- Oct 23 07:35:08 retrobox kernel: [ 23.109988] ACPI: Video Device [VID1] (multi-head: yes rom: no post: no) Oct 23 07:35:08 retrobox kernel: [ 23.115543] acpi device:06: registered as cooling_device0 Oct 23 07:35:08 retrobox kernel: [ 23.115669] input: Video Bus as /devices/LNXSYSTM:00/LNXSYBUS:00/PNP0A08:00/device:05/LNXVIDEO:01/input/input7 Oct 23 07:35:08 retrobox kernel: [ 23.216754] shpchp: Standard Hot Plug PCI Controller Driver version: 0.4 Oct 23 07:35:08 retrobox kernel: [ 23.305523] NET: Registered protocol family 23 Oct 23 07:35:08 retrobox kernel: [ 23.637255] nsc-ircc 00:05: [io 0x02f8-0x02ff] Oct 23 07:35:08 retrobox kernel: [ 23.637369] nsc-ircc 00:05: [irq 3] Oct 23 07:35:08 retrobox kernel: [ 23.637373] nsc-ircc 00:05: [dma 1] Oct 23 07:35:08 retrobox kernel: [ 23.637840] nsc-ircc 00:05: activated Oct 23 07:35:08 retrobox kernel: [ 23.639969] nsc-ircc, chip->init Oct 23 07:35:08 retrobox kernel: [ 23.639983] nsc-ircc, Found chip at base=0x164e Oct 23 07:35:08 retrobox kernel: [ 23.640044] nsc-ircc, driver loaded (Dag Brattli) Oct 23 07:35:08 retrobox kernel: [ 23.640730] BUG: unable to handle kernel NULL pointer dereference at 0130 Oct 23 07:35:08 retrobox kernel: [ 23.641422] IP: [] arch_dma_alloc_attrs+0x12/0x70 Oct 23 07:35:08 retrobox kernel: [ 23.641953] *pdpt = 363cb001 *pde = Oct 23 07:35:08 retrobox kernel: [ 23.642517] Oops: [#1] SMP Oct 23 07:35:08 retrobox kernel: [ 23.642849] Modules linked in: nsc_ircc(+) snd_seq_device snd_timer snd floppy(+) irda soundcore crc_ccitt shpchp 8