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Subject[Regression/Oops] nsc-ircc: 4.3.0rc6/rc7 No backlight on Thinkpad T60P
From
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 00000130
Oct 23 07:35:08 retrobox kernel: [ 23.641422] IP: [<c1017802>]
arch_dma_alloc_attrs+0x12/0x70
Oct 23 07:35:08 retrobox kernel: [ 23.641953] *pdpt = 00000000363cb001
*pde = 0000000000000000
Oct 23 07:35:08 retrobox kernel: [ 23.642517] Oops: 0000 [#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:[<c1017802>]
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:
00000000 ECX: 000080d0 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:
00000130 CR3: 36945200 CR4: 000006f0
Oct 23 07:35:08 retrobox kernel: [ 23.644011] Stack:
Oct 23 07:35:08 retrobox kernel: [ 23.644011] 00003830 f63cdd20
f8532a11 00000000 000080d0 f63cdd68 f6afe000 f6afe500
Oct 23 07:35:08 retrobox kernel: [ 23.644011] f6afe598 f63cdd68
f85371c9 c19ce2e2 f85340bc 00000000 f63cddc8 f63cdd58
Oct 23 07:35:08 retrobox kernel: [ 23.644011] c10b9be1 00000000
00000006 00000000 00000000 f8533267 f63cdd6c f63cdd60
Oct 23 07:35:08 retrobox kernel: [ 23.644011] Call Trace:
Oct 23 07:35:08 retrobox kernel: [ 23.644011] [<f8532a11>]
dma_alloc_attrs.constprop.18+0x4b/0x71 [nsc_ircc]
Oct 23 07:35:08 retrobox kernel: [ 23.644011] [<f85371c9>]
nsc_ircc_open+0x1c9/0x42c [nsc_ircc]
Oct 23 07:35:08 retrobox kernel: [ 23.644011] [<c10b9be1>] ?
vprintk_default+0x41/0x60
Oct 23 07:35:08 retrobox kernel: [ 23.644011] [<f85375e4>]
nsc_ircc_init+0x1b8/0xbd4 [nsc_ircc]
Oct 23 07:35:08 retrobox kernel: [ 23.644011] [<c1002136>]
do_one_initcall+0xc6/0x200
Oct 23 07:35:08 retrobox kernel: [ 23.644011] [<f853742c>] ?
nsc_ircc_open+0x42c/0x42c [nsc_ircc]
Oct 23 07:35:08 retrobox kernel: [ 23.644011] [<f853742c>] ?
nsc_ircc_open+0x42c/0x42c [nsc_ircc]
Oct 23 07:35:08 retrobox kernel: [ 23.644011] [<c1002136>] ?
do_one_initcall+0xc6/0x200
Oct 23 07:35:08 retrobox kernel: [ 23.644011] [<f853742c>] ?
nsc_ircc_open+0x42c/0x42c [nsc_ircc]
Oct 23 07:35:08 retrobox kernel: [ 23.644011] [<c171d8db>] ?
preempt_schedule_common+0x1b/0x40
Oct 23 07:35:08 retrobox kernel: [ 23.644011] [<c171d925>] ?
_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 00000130
Oct 23 07:35:08 retrobox kernel: [ 23.641422] IP: [<c1017802>] arch_dma_alloc_attrs+0x12/0x70
Oct 23 07:35:08 retrobox kernel: [ 23.641953] *pdpt = 00000000363cb001 *pde = 0000000000000000
Oct 23 07:35:08 retrobox kernel: [ 23.642517] Oops: 0000 [#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:[<c1017802>] 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: 00000000 ECX: 000080d0 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: 00000130 CR3: 36945200 CR4: 000006f0
Oct 23 07:35:08 retrobox kernel: [ 23.644011] Stack:
Oct 23 07:35:08 retrobox kernel: [ 23.644011] 00003830 f63cdd20 f8532a11 00000000 000080d0 f63cdd68 f6afe000 f6afe500
Oct 23 07:35:08 retrobox kernel: [ 23.644011] f6afe598 f63cdd68 f85371c9 c19ce2e2 f85340bc 00000000 f63cddc8 f63cdd58
Oct 23 07:35:08 retrobox kernel: [ 23.644011] c10b9be1 00000000 00000006 00000000 00000000 f8533267 f63cdd6c f63cdd60
Oct 23 07:35:08 retrobox kernel: [ 23.644011] Call Trace:
Oct 23 07:35:08 retrobox kernel: [ 23.644011] [<f8532a11>] dma_alloc_attrs.constprop.18+0x4b/0x71 [nsc_ircc]
Oct 23 07:35:08 retrobox kernel: [ 23.644011] [<f85371c9>] nsc_ircc_open+0x1c9/0x42c [nsc_ircc]
Oct 23 07:35:08 retrobox kernel: [ 23.644011] [<c10b9be1>] ? vprintk_default+0x41/0x60
Oct 23 07:35:08 retrobox kernel: [ 23.644011] [<f85375e4>] nsc_ircc_init+0x1b8/0xbd4 [nsc_ircc]
Oct 23 07:35:08 retrobox kernel: [ 23.644011] [<c1002136>] do_one_initcall+0xc6/0x200
Oct 23 07:35:08 retrobox kernel: [ 23.644011] [<f853742c>] ? nsc_ircc_open+0x42c/0x42c [nsc_ircc]
Oct 23 07:35:08 retrobox kernel: [ 23.644011] [<f853742c>] ? nsc_ircc_open+0x42c/0x42c [nsc_ircc]
Oct 23 07:35:08 retrobox kernel: [ 23.644011] [<c1002136>] ? do_one_initcall+0xc6/0x200
Oct 23 07:35:08 retrobox kernel: [ 23.644011] [<f853742c>] ? nsc_ircc_open+0x42c/0x42c [nsc_ircc]
Oct 23 07:35:08 retrobox kernel: [ 23.644011] [<c171d8db>] ? preempt_schedule_common+0x1b/0x40
Oct 23 07:35:08 retrobox kernel: [ 23.644011] [<c171d925>] ? _cond_resched+0x25/0x30
Oct 23 07:35:08 retrobox kernel: [ 23.644011] [<c11a5eb5>] ? kmem_cache_alloc_trace+0x165/0x1d0
Oct 23 07:35:08 retrobox kernel: [ 23.644011] [<c1156945>] ? do_init_module+0x21/0x1b5
Oct 23 07:35:08 retrobox kernel: [ 23.644011] [<c1156945>] ? do_init_module+0x21/0x1b5
Oct 23 07:35:08 retrobox kernel: [ 23.644011] [<c1156974>] do_init_module+0x50/0x1b5
Oct 23 07:35:08 retrobox kernel: [ 23.644011] [<c10e5696>] load_module+0x1c96/0x24c0
Oct 23 07:35:08 retrobox kernel: [ 23.644011] [<c10e608d>] SyS_finit_module+0x7d/0xc0
Oct 23 07:35:08 retrobox kernel: [ 23.644011] [<c1172573>] ? vm_mmap_pgoff+0x83/0xa0
Oct 23 07:35:08 retrobox kernel: [ 23.644011] [<c1720d17>] sysenter_do_call+0x12/0x12
Oct 23 07:35:08 retrobox kernel: [ 23.644011] Code: 00 83 c4 10 31 c0 5b 5e 5f 5d c3 66 90 66 90 66 90 66 90 66 90 66 90 66 90 55 89 e5 53 3e 8d 74 26 00 8b 0a 83 e1 f8 89 0a 8b 18 <8b> 9b 30 01 00 00 83 eb 01 81 fb fe ff ff 00 77 03 83 c9 01 89
Oct 23 07:35:08 retrobox kernel: [ 23.644011] EIP: [<c1017802>] arch_dma_alloc_attrs+0x12/0x70 SS:ESP 0068:f63cdcfc
Oct 23 07:35:08 retrobox kernel: [ 23.644011] CR2: 0000000000000130
Oct 23 07:35:08 retrobox kernel: [ 23.667541] ---[ end trace f8d3793989516980 ]---
Oct 23 07:35:08 retrobox kernel: [ 23.737711] intel_rng: FWH not detected
Oct 23 07:35:08 retrobox kernel: [ 24.088456] ACPI Warning: SystemIO range 0x0000000000001028-0x000000000000102F conflicts with OpRegion 0x0000000000001000-0x000000000000107F (\_SB_.PCI0.LPC_.PMIO) (20150818/utaddress-254)
Oct 23 07:35:08 retrobox kernel: [ 24.090114] ACPI: If an ACPI driver is available for this device, you should use it instead of the native driver
Oct 23 07:35:08 retrobox kernel: [ 24.101011] ACPI Warning: SystemIO range 0x00000000000011B0-0x00000000000011BF conflicts with OpRegion 0x0000000000001180-0x00000000000011BF (\_SB_.PCI0.LPC_.LPIO) (20150818/utaddress-254)
Oct 23 07:35:08 retrobox kernel: [ 24.102573] ACPI: If an ACPI driver is available for this device, you should use it instead of the native driver
Oct 23 07:35:08 retrobox kernel: [ 24.103490] ACPI Warning: SystemIO range 0x0000000000001180-0x00000000000011AF conflicts with OpRegion 0x0000000000001180-0x00000000000011BF (\_SB_.PCI0.LPC_.LPIO) (20150818/utaddress-254)
Oct 23 07:35:08 retrobox kernel: [ 24.105063] ACPI: If an ACPI driver is available for this device, you should use it instead of the native driver
Oct 23 07:35:08 retrobox kernel: [ 24.105977] lpc_ich: Resource conflict(s) found affecting gpio_ich
Oct 23 07:35:08 retrobox kernel: [ 24.240700] pci 0000:00:1e.0: enabling device (0005 -> 0007)
Oct 23 07:35:08 retrobox kernel: [ 24.241251] yenta_cardbus 0000:15:00.0: CardBus bridge found [17aa:2012]
Oct 23 07:35:08 retrobox kernel: [ 24.241877] yenta_cardbus 0000:15:00.0: Using INTVAL to route CSC interrupts to PCI
Oct 23 07:35:08 retrobox kernel: [ 24.242567] yenta_cardbus 0000:15:00.0: Routing CardBus interrupts to PCI
--


syslog-4.2.0-20151025-good
--
Oct 26 08:16:53 retrobox kernel: [ 22.162185] shpchp: Standard Hot Plug PCI Controller Driver version: 0.4
Oct 26 08:16:53 retrobox kernel: [ 22.234951] NET: Registered protocol family 23
Oct 26 08:16:53 retrobox kernel: [ 22.428734] nsc-ircc 00:05: [io 0x02f8-0x02ff]
Oct 26 08:16:53 retrobox kernel: [ 22.428849] nsc-ircc 00:05: [irq 3]
Oct 26 08:16:53 retrobox kernel: [ 22.428854] nsc-ircc 00:05: [dma 1]
Oct 26 08:16:53 retrobox kernel: [ 22.429280] nsc-ircc 00:05: activated
Oct 26 08:16:53 retrobox kernel: [ 22.432575] nsc-ircc, chip->init
Oct 26 08:16:53 retrobox kernel: [ 22.432590] nsc-ircc, Found chip at base=0x164e
Oct 26 08:16:53 retrobox kernel: [ 22.432630] nsc-ircc, driver loaded (Dag Brattli)
Oct 26 08:16:53 retrobox kernel: [ 22.432898] IrDA: Registered device irda0
Oct 26 08:16:53 retrobox kernel: [ 22.432900] nsc-ircc, Using dongle: IBM31T1100 or Temic TFDS6000/TFDS6500
Oct 26 08:16:53 retrobox kernel: [ 22.683829] intel_rng: FWH not detected
Oct 26 08:16:53 retrobox kernel: [ 22.914998] pci 0000:00:1e.0: enabling device (0005 -> 0007)
Oct 26 08:16:53 retrobox kernel: [ 22.915032] yenta_cardbus 0000:15:00.0: CardBus bridge found [17aa:2012]
Oct 26 08:16:53 retrobox kernel: [ 22.915057] yenta_cardbus 0000:15:00.0: Using INTVAL to route CSC interrupts to PCI
Oct 26 08:16:53 retrobox kernel: [ 22.915060] yenta_cardbus 0000:15:00.0: Routing CardBus interrupts to PCI
Oct 26 08:16:53 retrobox kernel: [ 22.915067] yenta_cardbus 0000:15:00.0: TI: mfunc 0x01d01002, devctl 0x64
--
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