[Bug 104945] New: [CI] igt at gem_exec_capture@capture-render - incomplete - GEM_BUG_ON(buf[2 * head + 1] != port->context_id) - kernel BUG at drivers/gpu/drm/i915/intel_lrc.c:869!

Mon Feb 5 07:22:46 UTC 2018

https://bugs.freedesktop.org/show_bug.cgi?id=104945

            Bug ID: 104945
           Summary: [CI] igt at gem_exec_capture@capture-render - incomplete
                    - GEM_BUG_ON(buf[2 * head + 1] != port->context_id) -
                    kernel BUG at drivers/gpu/drm/i915/intel_lrc.c:869!
           Product: DRI
           Version: DRI git
          Hardware: Other
                OS: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: DRM/Intel
          Assignee: intel-gfx-bugs at lists.freedesktop.org
          Reporter: marta.lofstedt at intel.com
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
                CC: intel-gfx-bugs at lists.freedesktop.org

https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_3718/shard-kbl6/igt@gem_exec_capture@capture-render.html
and
https://intel-gfx-ci.01.org/tree/drm-tip/IGT_4213/shard-kbl6/igt@gem_exec_capture@capture-render.html

>From pstore:
<3>[   69.992810] GEM_BUG_ON(buf[2 * head + 1] != port->context_id)
<4>[   69.992889] ------------[ cut here ]------------
<2>[   69.992892] kernel BUG at drivers/gpu/drm/i915/intel_lrc.c:869!
<4>[   69.992917] invalid opcode: 0000 [#1] PREEMPT SMP PTI
...
ftrace
...
<4>[   69.431753] Modules linked in: snd_hda_codec_hdmi snd_hda_codec_realtek
snd_hda_codec_generic i915 x86_pkg_temp_thermal intel_powerclamp coretemp
snd_hda_intel crct10dif_pclmul snd_hda_codec crc32_pclmul snd_hwdep
snd_hda_core ghash_clmulni_intel e1000e snd_pcm mei_me ptp mei pps_core
prime_numbers
<4>[   69.431796] CPU: 0 PID: 1503 Comm: gem_exec_captur Tainted: G     U  W   
    4.15.0-CI-CI_DRM_3717+ #1
<4>[   69.431806] Hardware name:                  /NUC7i5BNB, BIOS
BNKBL357.86A.0054.2017.1025.1822 10/25/2017
<4>[   69.431837] RIP: 0010:execlists_submission_tasklet+0x471/0xde0 [i915]
<4>[   69.431844] RSP: 0018:ffff88027ec03ea8 EFLAGS: 00010296
<4>[   69.431851] RAX: 0000000000000031 RBX: 0000000000000018 RCX:
0000000000000102
<4>[   69.431859] RDX: 0000000000000102 RSI: ffffffff8211476f RDI:
00000000ffffffff
<4>[   69.431867] RBP: ffff88027ec03f20 R08: ffff8802695c0940 R09:
00000000f389b231
<4>[   69.431874] R10: 000000000000000c R11: 0000000000000000 R12:
ffff880269a57040
<4>[   69.431882] R13: ffff88026a090010 R14: ffff880269a5704c R15:
ffff88026a090008
<4>[   69.431890] FS:  00007f2ede1ae8c0(0000) GS:ffff88027ec00000(0000)
knlGS:0000000000000000
<4>[   69.431899] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
<4>[   69.431906] CR2: 0000563cac5275b0 CR3: 0000000269f9c002 CR4:
00000000003606f0
<4>[   69.431914] Call Trace:
<4>[   69.431918]  <IRQ>
<4>[   69.431928]  tasklet_hi_action+0x89/0x110
<4>[   69.431935]  __do_softirq+0xc1/0x4aa
<4>[   69.431943]  irq_exit+0xa4/0xb0
<4>[   69.431948]  do_IRQ+0x67/0x120
<4>[   69.431954]  common_interrupt+0x9f/0x9f
<4>[   69.431960]  </IRQ>
<4>[   69.431964] RIP: 0010:_raw_spin_unlock_irqrestore+0x4e/0x60
<4>[   69.431971] RSP: 0018:ffffc900009afb58 EFLAGS: 00000246 ORIG_RAX:
ffffffffffffffd6
<4>[   69.431980] RAX: ffff8802695c0040 RBX: 0000000000000246 RCX:
0000000000000006
<4>[   69.431988] RDX: 00000000000013ba RSI: ffffffff821087d9 RDI:
ffffffff820b9aa6
<4>[   69.431996] RBP: ffff88025ff26050 R08: ffff8802695c0940 R09:
00000000f389b231
<4>[   69.432003] R10: 0000000000000000 R11: 0000000000000000 R12:
ffffffffa0284d40
<4>[   69.432011] R13: ffff880268eea228 R14: ffff88026ab32558 R15:
ffff880268eea228
<4>[   69.432024]  __irq_put_desc_unlock+0x13/0x40
<4>[   69.432030]  enable_irq+0x42/0x60
<4>[   69.432055]  i915_reset+0xcd/0x270 [i915]
<4>[   69.432080]  i915_reset_device+0x1cb/0x230 [i915]
<4>[   69.432106]  ? gen8_gt_irq_ack+0x160/0x160 [i915]
<4>[   69.432115]  ? work_on_cpu_safe+0x50/0x50
<4>[   69.432141]  i915_handle_error+0x2d3/0x430 [i915]
<4>[   69.432152]  ? __might_fault+0x39/0x90
<4>[   69.432158]  ? __might_fault+0x39/0x90
<4>[   69.432186]  i915_wedged_set+0x79/0xc0 [i915]
<4>[   69.432193]  simple_attr_write+0xab/0xc0
<4>[   69.432200]  full_proxy_write+0x4b/0x70
<4>[   69.432207]  __vfs_write+0x1e/0x130
<4>[   69.432213]  ? rcu_read_lock_sched_held+0x6f/0x80
<4>[   69.432220]  ? rcu_sync_lockdep_assert+0x25/0x50
<4>[   69.432226]  ? __sb_start_write+0xd9/0x1f0
<4>[   69.432232]  ? __sb_start_write+0xf3/0x1f0
<4>[   69.432238]  vfs_write+0xbd/0x1b0
<4>[   69.432244]  SyS_write+0x40/0xa0
<4>[   69.432251]  entry_SYSCALL_64_fastpath+0x22/0x8f
<4>[   69.432257] RIP: 0033:0x7f2edc994670
<4>[   69.432262] RSP: 002b:00007fff734c5cc8 EFLAGS: 00000246
<4>[   69.432266] Code: fd ff ff 48 c7 c6 20 6c 2a a0 48 c7 c7 cb b0 28 a0 e8
09 ba f2 e0 0f 0b 48 c7 c6 48 6c 2a a0 48 c7 c7 cb b0 28 a0 e8 f4 b9 f2 e0 <0f>
0b 49 8d 9e 60 15 00 00 4c 89 5d b0 48 89 df e8 1a 01 70 e1 
<1>[   69.432359] RIP: execlists_submission_tasklet+0x471/0xde0 [i915] RSP:
ffff88027ec03ea8
<4>[   69.432386] ---[ end trace 168600b65ef640ff ]---

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