[Bug 107713] [CI][BAT] [ICL only] igt@* - incomplete - timeout/system hang?

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=107713

--- Comment #4 from Chris Wilson <chris at chris-wilson.co.uk> ---
(In reply to Martin Peres from comment #3)
> https://intel-gfx-ci.01.org/tree/drm-tip/drmtip_109/fi-icl-u/
> igt at kms_rotation_crc@primary-yf-tiled-reflect-x-90.html
> 
> <4>[  114.464229] WARNING: CPU: 5 PID: 2382 at kernel/rcu/tree_plugin.h:342
> rcu_note_context_switch+0x6d/0x670
...
> <4>[  114.464480] RIP: 0010:__list_del_entry_valid+0x25/0x90
> <4>[  114.464485] Code: c3 0f 1f 40 00 48 8b 07 48 b9 00 01 00 00 00 00 ad
> de 48 8b 57 08 48 39 c8 74 26 48 b9 00 02 00 00 00 00 ad de 48 39 ca 74 2e
> <48> 8b 32 48 39 fe 75 3a 48 8b 50 08 48 39 f2 75 48 b8 01 00 00 00
> <4>[  114.464491] RSP: 0018:ffffa2b94074ba38 EFLAGS: 00010002
> <4>[  114.464499] RAX: fffff5d4d250f988 RBX: 0000000000000000 RCX:
> dead000000000200
> <4>[  114.464504] RDX: fffb9541ee800480 RSI: 00000000ffffffff RDI:
> fffff5d4d2998d08
> <4>[  114.464510] RBP: ffffa2b94074bb00 R08: 00000000f33181c6 R09:
> ffff9541e6635e48
> <4>[  114.464514] R10: fffff5d4d2998d08 R11: 0000000000000000 R12:
> 0000000000000008
> <4>[  114.464518] R13: fffff5d4d250f980 R14: fffff5d4d2998d00 R15:
> ffff9541ee80f880
> <4>[  114.464527]  get_partial_node.isra.29+0x178/0x460
> <4>[  114.464534]  ? __lock_acquire+0x3c8/0x1b50
> <4>[  114.464541]  ? ___slab_alloc.constprop.34+0x1af/0x390
> <4>[  114.464546]  ___slab_alloc.constprop.34+0x1af/0x390
> <4>[  114.464603]  ? i915_gem_object_get_pages_gtt+0xa4/0x620 [i915]
> <4>[  114.464612]  ? lock_acquire+0xa6/0x1c0
> <4>[  114.464655]  ? i915_gem_object_get_pages_gtt+0xa4/0x620 [i915]
> <4>[  114.464668]  ? __slab_alloc.isra.27.constprop.33+0x3d/0x70
> <4>[  114.464674]  __slab_alloc.isra.27.constprop.33+0x3d/0x70
> <4>[  114.464716]  ? i915_gem_object_get_pages_gtt+0xa4/0x620 [i915]
> <4>[  114.464723]  kmem_cache_alloc_trace+0x228/0x290
> <4>[  114.464764]  i915_gem_object_get_pages_gtt+0xa4/0x620 [i915]

Is indicative of severe memcorruption -- someone has overwritten the slabs.

The system is toast and we can expect all manner of wacky bugs. A few kasan
runs required, maybe followed by even a kmemcheck. If they all check out, I'm
afraid we're telling the GPU to do funky things (unless we can pin on some
other hw).

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