Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67;
Date:   Thu, 8 Nov 2018 18:58:03 +0100
From:   Pavel Machek <pavel@ucw.cz>
To:     kernel list <linux-kernel@vger.kernel.org>, tglx@linutronix.de,
        mingo@redhat.com, bp@alien8.de, hpa@zytor.com, x86@kernel.org
Cc:     jani.nikula@linux.intel.com, joonas.lahtinen@linux.intel.com,
        rodrigo.vivi@intel.com, intel-gfx@lists.freedesktop.org
Subject: v4.20-rc1: list_del corruption on thinkpad x220
Message-ID: <20181108175803.GA10785@amd>
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Hi!

My machine locked hard (thinkpad x220). After reboot, I found this in
syslog:

Sounds like memory corruption..? Does not sound like easy to debug.

=2E..otoh, it still looks like an addres, so maybe it is "just" race in
GPU drivers?

Any ideas?
								Pavel

Nov  8 18:35:01 duo CRON[28511]: (root) CMD (command -v debian-sa1 >
/dev/null && debian-sa
1 1 1)
Nov  8 18:42:57 duo kernel: list_del corruption. prev->next should be
ffff8801742b8178, but
 was ffffc9000192fec8
 Nov  8 18:42:57 duo kernel: ------------[ cut here ]------------
 Nov  8 18:42:57 duo kernel: kernel BUG at
 /data/fast/l/k/lib/list_debug.c:53!
 Nov  8 18:42:57 duo kernel: invalid opcode: 0000 [#1] SMP PTI
 Nov  8 18:42:57 duo kernel: CPU: 2 PID: 1082 Comm: i915/signal:1 Not
 tainted 4.20.0-rc1+ #3
 Nov  8 18:42:57 duo kernel: Hardware name: LENOVO 42872WU/42872WU,
 BIOS 8DET74WW (1.44 ) 03
 /13/2018
 Nov  8 18:42:57 duo kernel: RIP:
 0010:__list_del_entry_valid+0x8e/0x90
 Nov  8 18:42:57 duo kernel: Code: 66 88 d1 ff 0f 0b 48 89 fe 31 c0 48
 c7 c7 90 74 5e 85 e8
 53 88 d1 ff 0f 0b 48 89 fe 31 c0 48 c7 c7 c8 74 5e 85 e8 40 88 d1 ff
 <0f> 0b 55 48 89 d0 48
  8b 52 08 48 89 e5 48 39 f2 75 19 48 8b 32 48
  Nov  8 18:42:57 duo kernel: RSP: 0000:ffffc9000196be78 EFLAGS:
  00210086
  Nov  8 18:42:57 duo kernel: RAX: 0000000000000054 RBX:
  ffff8801742b8178 RCX: 00000000000000
  00
  Nov  8 18:42:57 duo kernel: RDX: 0000000000000000 RSI:
  ffff88019e2a53d8 RDI: ffff88019e2a53
  d8
  Nov  8 18:42:57 duo kernel: RBP: ffffc9000196be78 R08:
  ffff880196e2cd10 R09: 00000000000000
  00
  Nov  8 18:42:57 duo kernel: R10: 00000000e7684eb9 R11:
  3863656632393101 R12: ffffc9000196be
  c8
  Nov  8 18:42:57 duo kernel: R13: ffff88019707e000 R14:
  ffff8801742b8080 R15: ffffc9000192fd
  d0
  Nov  8 18:42:57 duo kernel: FS:  0000000000000000(0000)
  GS:ffff88019e280000(0000) knlGS:000
  0000000000000
  Nov  8 18:42:57 duo kernel: CS:  0010 DS: 0000 ES: 0000 CR0:
  0000000080050033
  Nov  8 18:42:57 duo kernel: CR2: 00000000ed2bf000 CR3:
  000000000581e001 CR4: 00000000000606a0
  Nov  8 18:42:57 duo kernel: Call Trace:
  Nov  8 18:42:57 duo kernel: intel_breadcrumbs_signaler+0x162/0x330
  Nov  8 18:42:57 duo kernel: kthread+0x116/0x150
  Nov  8 18:42:57 duo kernel: ? intel_engine_wakeup+0x40/0x40
  Nov  8 18:42:57 duo kernel: ? kthread_park+0x90/0x90
  Nov  8 18:42:57 duo kernel: ret_from_fork+0x35/0x40
  Nov  8 18:42:57 duo kernel: Modules linked in:
  Nov  8 18:42:57 duo kernel: ---[ end trace 2f8da183a56f80f6 ]---
  Nov  8 18:42:57 duo kernel: RIP:
  0010:__list_del_entry_valid+0x8e/0x90
  Nov  8 18:42:57 duo kernel: Code: 66 88 d1 ff 0f 0b 48 89 fe 31 c0
  48 c7 c7 90 74 5e 85 e8 53 88 d1 ff 0f 0b 48 89 fe 31 c0 48 c7 c7 c8
  74 5e 85 e8 40 88 d1 ff <0f> 0b 55 48 89 d0 48 8b 52 08 48 89 e5 48
  39 f2 75 19 48 8b 32 48
  Nov  8 18:42:57 duo kernel: RSP: 0000:ffffc9000196be78 EFLAGS:
  00210086
  Nov  8 18:42:57 duo kernel: RAX: 0000000000000054 RBX:
  ffff8801742b8178 RCX: 0000000000000000
  Nov  8 18:42:57 duo kernel: RDX: 0000000000000000 RSI:
  ffff88019e2a53d8 RDI: ffff88019e2a53d8
  Nov  8 18:42:57 duo kernel: RBP: ffffc9000196be78 R08:
  ffff880196e2cd10 R09: 0000000000000000
  Nov  8 18:42:57 duo kernel: R10: 00000000e7684eb9 R11:
  3863656632393101 R12: ffffc9000196bec8
  Nov  8 18:42:57 duo kernel: R13: ffff88019707e000 R14:
  ffff8801742b8080 R15: ffffc9000192fdd0
  Nov  8 18:42:57 duo kernel: FS:  0000000000000000(0000)
  GS:ffff88019e280000(0000) knlGS:0000000000000000
  Nov  8 18:42:57 duo kernel: CS:  0010 DS: 0000 ES: 0000 CR0:
  0000000080050033
  Nov  8 18:42:57 duo kernel: CR2: 00000000ed2bf000 CR3:
  000000000581e001 CR4: 00000000000606a0

--=20
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blo=
g.html

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