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<base href="https://bugs.freedesktop.org/">
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<body><table border="1" cellspacing="0" cellpadding="8">
<tr>
<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - [CI][DRMTIP] igt@gem_ctx_isolation@rcs0-dirty-create - dmesg-warn - NMI backtrace for cpu 1"
href="https://bugs.freedesktop.org/show_bug.cgi?id=111939">111939</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>[CI][DRMTIP] igt@gem_ctx_isolation@rcs0-dirty-create - dmesg-warn - NMI backtrace for cpu 1
</td>
</tr>
<tr>
<th>Product</th>
<td>DRI
</td>
</tr>
<tr>
<th>Version</th>
<td>DRI git
</td>
</tr>
<tr>
<th>Hardware</th>
<td>Other
</td>
</tr>
<tr>
<th>OS</th>
<td>All
</td>
</tr>
<tr>
<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Severity</th>
<td>not set
</td>
</tr>
<tr>
<th>Priority</th>
<td>not set
</td>
</tr>
<tr>
<th>Component</th>
<td>DRM/Intel
</td>
</tr>
<tr>
<th>Assignee</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>lakshminarayana.vudum@intel.com
</td>
</tr>
<tr>
<th>QA Contact</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr>
<tr>
<th>CC</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr></table>
<p>
<div>
<pre><a href="https://intel-gfx-ci.01.org/tree/drm-tip/drmtip_382/fi-bwr-2160/igt@gem_ctx_isolation@rcs0-dirty-create.html">https://intel-gfx-ci.01.org/tree/drm-tip/drmtip_382/fi-bwr-2160/igt@gem_ctx_isolation@rcs0-dirty-create.html</a>
<4> [390.262939] NMI backtrace for cpu 1
<4> [390.262941] CPU: 1 PID: 1166 Comm: gem_ctx_isolati Tainted: G U
5.4.0-rc1-g78b99839aed8-drmtip_382+ #1
<4> [390.262943] Hardware name: Dell Inc. OptiPlex 745
/0GW726, BIOS 2.3.1 05/21/2007
<4> [390.262943] RIP: 0010:memchr+0x8/0x20
<4> [390.262945] Code: 0b 48 83 c1 01 4c 39 c1 75 ed f3 c3 48 83 c0 01 4c 39 c2
73 dc 31 c0 c3 f3 c3 48 89 f8 c3 0f 1f 40 00 48 01 fa eb 0c 40 38 37 <48> 8d 47
01 74 0b 48 89 c7 48 39 d7 75 ef 31 c0 c3 48 89 f8 c3 0f
<4> [390.262946] RSP: 0018:ffffa3dd808a7980 EFLAGS: 00000016
<4> [390.262948] RAX: ffff9656bf5fa557 RBX: 000000000000004f RCX:
0000000000000001
<4> [390.262949] RDX: ffff9656bf5fa58f RSI: 000000000000000a RDI:
ffff9656bf5fa557
<4> [390.262950] RBP: 000000000000000f R08: 0000000000000000 R09:
000000000000000f
<4> [390.262951] R10: 0000000000000000 R11: ffffa3dd808a79b5 R12:
ffffffff85b7c7c0
<4> [390.262951] R13: ffffa3dd808a79a8 R14: 0000000000000000 R15:
ffff9656bf5fa540
<4> [390.262952] FS: 00007fafa0649e40(0000) GS:ffff9656bde80000(0000)
knlGS:0000000000000000
<4> [390.262953] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
<4> [390.262954] CR2: 00007faf9faaaddc CR3: 0000000039c30000 CR4:
00000000000006e0
<4> [390.262955] Call Trace:
<4> [390.262955] msg_print_text+0x138/0x260
<4> [390.262956] ? console_unlock+0x8d/0x5b0
<4> [390.262957] console_unlock+0x140/0x5b0
<4> [390.262957] vprintk_emit+0xf7/0x340
<4> [390.262958] printk+0x4d/0x69
<4> [390.262959] trace_printk_seq+0x42/0x90
<4> [390.262960] ftrace_dump+0x1ef/0x270
<4> [390.262960] trace_die_handler+0x1b/0x30
<4> [390.262961] notifier_call_chain+0x34/0x90
<4> [390.262962] __atomic_notifier_call_chain+0x69/0x110
<4> [390.262962] notify_die+0x5a/0xa0
<4> [390.262963] __die+0xb0/0xd0
<4> [390.262964] no_context+0x1b7/0x570
<4> [390.262964] page_fault+0x34/0x40
<4> [390.262965] RIP: 0010:__rb_erase_color+0xdb/0x260
<4> [390.262967] Code: 48 8b 6b 08 48 39 d5 0f 85 64 ff ff ff 48 8b 6b 10 f6 45
00 01 4c 8b 6d 08 75 5c 48 89 d8 4c 89 6b 10 48 89 5d 08 48 83 c8 01 <49> 89 45
00 48 8b 03 48 89 45 00 48 83 e0 fc 48 89 2b 74 23 48 3b
<4> [390.262968] RSP: 0018:ffffa3dd808a7d50 EFLAGS: 00010282
<4> [390.262969] RAX: ffff9656b3333329 RBX: ffff9656b3333328 RCX:
0000000000000000
<4> [390.262970] RDX: 0000000000000000 RSI: ffff9656ba7a7898 RDI:
ffff9656b3333328
<4> [390.262971] RBP: ffff96569fd694b0 R08: 0000000000000017 R09:
00000000fffffffe
<4> [390.262972] R10: 000000008d7f774f R11: 00000000ff523dc8 R12:
ffff9656ba7a7898
<4> [390.262973] R13: 0000000000000000 R14: ffffffff8320bdf0 R15:
0000000000000000
<4> [390.262974] ? vmacache_find+0xb0/0xb0
<4> [390.262975] unlink_file_vma+0x36/0x50
<4> [390.262975] free_pgtables+0xb9/0x110
<4> [390.262976] exit_mmap+0xa3/0x180
<4> [390.262977] mmput+0x5d/0x150
<4> [390.262977] do_exit+0x5fb/0xd70
<4> [390.262978] do_group_exit+0x42/0xb0
<4> [390.262979] __x64_sys_exit_group+0xf/0x10
<4> [390.262979] do_syscall_64+0x4f/0x210
<4> [390.262980] entry_SYSCALL_64_after_hwframe+0x49/0xbe
<4> [390.262981] RIP: 0033:0x7faf9faaae06
<4> [390.262981] Code: Bad RIP value.
<4> [390.262982] RSP: 002b:00007ffd21134f68 EFLAGS: 00000246 ORIG_RAX:
00000000000000e7
<4> [390.262984] RAX: ffffffffffffffda RBX: 00007faf9fdad740 RCX:
00007faf9faaae06
<4> [390.262985] RDX: 0000000000000000 RSI: 000000000000003c RDI:
0000000000000000
<4> [390.262986] RBP: 0000000000000000 R08: 00000000000000e7 R09:
ffffffffffffff80
<4> [390.262987] R10: 00007faf93e260c0 R11: 0000000000000246 R12:
00007faf9fdad740
<4> [390.262988] R13: 0000000000000003 R14: 00007faf9fdb6628 R15:
0000000000000000
<3> [390.262997] rcu: rcu_preempt kthread starved for 65002 jiffies! g191829
f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 ->cpu=1
<0> [390.263620] gem_exec-1067 1d..1 228653088us : __i915_request_submit:
rcs0 fence 3:107601, current 107598
<3> [390.264952] rcu: RCU grace-period kthread stack dump:
<0> [390.266549] gem_exec-1067 1.... 228653212us : __i915_request_commit:
rcs0 fence 3:107602
<6> [390.267976] rcu_preempt I14368 10 2 0x80004000
<0> [390.269564] gem_exec-1067 1d..1 228653224us : __i915_request_submit:
rcs0 fence 3:107602, current 107598
<4> [390.271162] Call Trace:
<0> [390.272979] gem_exec-1067 1.... 228653382us : __i915_request_commit:
rcs0 fence 3:107603
<4> [390.274624] ? __schedule+0x2ef/0x7f0
<0> [390.276440] gem_exec-1067 1d..1 228653395us : __i915_request_submit:
rcs0 fence 3:107603, current 107598
<4> [390.278075] schedule+0x34/0xc0
<0> [390.279877] gem_exec-1067 1.... 228653522us : __i915_request_commit:
rcs0 fence 3:107604
<4> [390.281486] schedule_timeout+0x1cc/0x3f0
<0> [390.283307] gem_exec-1067 1d..1 228653534us : __i915_request_submit:
rcs0 fence 3:107604, current 107598
<4> [390.284923] ? __next_timer_interrupt+0xc0/0xc0
<0> [390.286725] gem_exec-1067 1.... 228653658us : __i915_request_commit:
rcs0 fence 3:107605
<4> [390.288318] rcu_gp_kthread+0x604/0xb70
<0> [390.290095] gem_exec-1067 1d..1 228653671us : __i915_request_submit:
rcs0 fence 3:107605, current 107598
<4> [390.291668] ? rcu_barrier_func+0xa0/0xa0
<0> [390.293414] gem_exec-1067 1.... 228653793us : __i915_request_commit:
rcs0 fence 3:107606
<4> [390.294972] kthread+0x119/0x130
<0> [390.296724] gem_exec-1067 1d..1 228653806us : __i915_request_submit:
rcs0 fence 3:107606, current 107598
<4> [390.298297] ? kthread_park+0x80/0x80
<0> [390.300064] gem_exec-1067 1.... 228653932us : __i915_request_commit:
rcs0 fence 3:107607
<4> [390.301649] ret_from_fork+0x3a/0x50</pre>
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