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Date:   Sat, 8 Aug 2020 23:47:33 +0200
From:   Pavel Machek <pavel@....cz>
To:     kernel list <linux-kernel@...r.kernel.org>,
        jani.nikula@...ux.intel.com, joonas.lahtinen@...ux.intel.com,
        rodrigo.vivi@...el.com, intel-gfx@...ts.freedesktop.org
Subject: -next on 32-bit thinkpad x60: blinking screen, intel DRM responsible?

Hi!

Next has been unusable for a while, but today I got dmesg.

Screen is blinking, machine is very unhappy, and ssh is slow/hangs,
but I got this:

This is recurring patern, usually machine dies like this within 30
minutes of boot.


[  455.019838] perf: interrupt took too long (2509 > 2500), lowering kernel.perf_event_max_sample_rate to 79500
[  752.720607] perf: interrupt took too long (3153 > 3136), lowering kernel.perf_event_max_sample_rate to 63250
[ 1235.055394] BUG: unable to handle page fault for address: f8801000
[ 1235.055408] #PF: supervisor write access in kernel mode
[ 1235.055414] #PF: error_code(0x0002) - not-present page
[ 1235.055420] *pdpt = 0000000031ff2001 *pde = 0000000000000000 
[ 1235.055436] Oops: 0002 [#1] PREEMPT SMP PTI
[ 1235.055446] CPU: 1 PID: 3013 Comm: Xorg Not tainted 5.8.0-next-20200807+ #132
[ 1235.055453] Hardware name: LENOVO 17097HU/17097HU, BIOS 7BETD8WW (2.19 ) 03/31/2011
[ 1235.055466] EIP: eb_relocate_vma+0xdee/0xf50
[ 1235.055475] Code: 85 c0 fd ff ff ed ff ff ff c7 85 c4 fd ff ff ff ff ff ff 8b 85 c0 fd ff ff e9 33 f7 ff ff 8d b6 00 00 00 00 8b 85 d0 fd ff ff <c7> 03 01 00 40 10 89 43 04 8b 85 dc fd ff ff 89 43 08 e9 2c f6 ff
[ 1235.055483] EAX: 009a706c EBX: f8801000 ECX: 0034e000 EDX: 00000000
[ 1235.055490] ESI: f1fd5cd4 EDI: f1fd5a5c EBP: f1fd5c6c ESP: f1fd5a04
[ 1235.055498] DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068 EFLAGS: 00210246
[ 1235.055505] CR0: 80050033 CR2: f8801000 CR3: 31856000 CR4: 000006b0
[ 1235.055511] Call Trace:
[ 1235.055529]  ? i915_vma_pin+0x2f4/0x850
[ 1235.055540]  ? __mutex_unlock_slowpath+0x2b/0x2c0
[ 1235.055549]  ? __active_retire+0x7e/0xd0
[ 1235.055557]  ? mutex_unlock+0xb/0x10
[ 1235.055564]  ? i915_vma_pin+0x2f4/0x850
[ 1235.055573]  ? eb_lookup_vmas+0x272/0x9f0
[ 1235.055581]  i915_gem_do_execbuffer+0xa7b/0x2730
[ 1235.055595]  ? intel_runtime_pm_put_unchecked+0xd/0x10
[ 1235.055602]  ? i915_gem_gtt_pwrite_fast+0xf6/0x520
[ 1235.055613]  ? __lock_acquire.isra.0+0x223/0x500
[ 1235.055624]  ? cache_alloc_debugcheck_after+0x151/0x180
[ 1235.055632]  ? kvmalloc_node+0x69/0x80
[ 1235.055639]  ? __kmalloc+0x92/0x120
[ 1235.055646]  ? kvmalloc_node+0x69/0x80
[ 1235.055654]  i915_gem_execbuffer2_ioctl+0xdd/0x350
[ 1235.055662]  ? i915_gem_execbuffer_ioctl+0x2a0/0x2a0
[ 1235.055671]  drm_ioctl_kernel+0x91/0xe0
[ 1235.055679]  ? i915_gem_execbuffer_ioctl+0x2a0/0x2a0
[ 1235.055686]  drm_ioctl+0x1fd/0x371
[ 1235.055694]  ? i915_gem_execbuffer_ioctl+0x2a0/0x2a0
[ 1235.055706]  ? posix_get_monotonic_timespec+0x1d/0x80
[ 1235.055714]  ? drm_ioctl_kernel+0xe0/0xe0
[ 1235.055723]  __ia32_sys_ioctl+0x14b/0x7c6
[ 1235.055732]  ? _copy_to_user+0x21/0x30
[ 1235.055742]  ? exit_to_user_mode_prepare+0x53/0x100
[ 1235.055752]  do_int80_syscall_32+0x2c/0x40
[ 1235.055761]  entry_INT80_32+0x116/0x116
[ 1235.055768] EIP: 0xb7f08092
[ 1235.055776] Code: 00 00 00 e9 90 ff ff ff ff a3 24 00 00 00 68 30 00 00 00 e9 80 ff ff ff ff a3 e8 ff ff ff 66 90 00 00 00 00 00 00 00 00 cd 80 <c3> 8d b4 26 00 00 00 00 8d b6 00 00 00 00 8b 1c 24 c3 8d b4 26 00
[ 1235.055784] EAX: ffffffda EBX: 0000000a ECX: c0406469 EDX: bfe9cd4c
[ 1235.055791] ESI: b72f6000 EDI: c0406469 EBP: 0000000a ESP: bfe9ccc4
[ 1235.055798] DS: 007b ES: 007b FS: 0000 GS: 0033 SS: 007b EFLAGS: 00200292
[ 1235.055808]  ? asm_exc_nmi+0xcc/0x2bc
[ 1235.055813] Modules linked in:
[ 1235.055823] CR2: 00000000f8801000
[ 1235.055833] ---[ end trace f487886b697d29e8 ]---
[ 1235.055840] EIP: eb_relocate_vma+0xdee/0xf50
[ 1235.055848] Code: 85 c0 fd ff ff ed ff ff ff c7 85 c4 fd ff ff ff ff ff ff 8b 85 c0 fd ff ff e9 33 f7 ff ff 8d b6 00 00 00 00 8b 85 d0 fd ff ff <c7> 03 01 00 40 10 89 43 04 8b 85 dc fd ff ff 89 43 08 e9 2c f6 ff
[ 1235.055855] EAX: 009a706c EBX: f8801000 ECX: 0034e000 EDX: 00000000
[ 1235.055862] ESI: f1fd5cd4 EDI: f1fd5a5c EBP: f1fd5c6c ESP: f1fd5a04
[ 1235.055870] DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068 EFLAGS: 00210246
[ 1235.055877] CR0: 80050033 CR2: f8801000 CR3: 31856000 CR4: 000006b0
[ 1235.062533] BUG: unable to handle page fault for address: f8803038


-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html

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