[Regression/Oops] nsc-ircc: 4.3.0rc6/rc7 No backlight on Thinkpad T60P

2015-10-27 Thread Simon Wood 
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

Re: [Regression/Oops] nsc-ircc: 4.3.0rc6/rc7 No backlight on Thinkpad T60P

2015-10-27 Thread Simon Wood 
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.


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