[Intel-gfx] ✗ Fi.CI.BAT: warning for series starting with [v4,1/2] PCI / PM: Add needs_resume flag to avoid suspend complete optimization

Imre Deak imre.deak at intel.com
Tue May 2 16:28:39 UTC 2017


On Tue, May 02, 2017 at 03:10:29PM +0000, Patchwork wrote:
> == Series Details ==
> 
> Series: series starting with [v4,1/2] PCI / PM: Add needs_resume flag to avoid suspend complete optimization
> URL   : https://patchwork.freedesktop.org/series/23803/
> State : warning
> 
> == Summary ==
> 
> Series 23803v1 Series without cover letter
> https://patchwork.freedesktop.org/api/1.0/series/23803/revisions/1/mbox/
> 
> Test gem_exec_suspend:
>         Subgroup basic-s4-devices:
>                 pass       -> DMESG-WARN (fi-kbl-7560u) fdo#100125
> Test kms_flip:
>         Subgroup basic-flip-vs-modeset:
>                 pass       -> DMESG-WARN (fi-byt-j1900) fdo#100652
> Test kms_setmode:
>         Subgroup basic-clone-single-crtc:
>                 pass       -> DMESG-WARN (fi-kbl-7560u)

Slab corruption happening when we allocate, but doesn't look to be our fault.
The corrupted data looks like some DNS query stuff. 

[  536.637703] BUG kmalloc-4096 (Tainted: G     U  W      ): Poison overwritten
[  536.637714] -----------------------------------------------------------------------------

[  536.637730] Disabling lock debugging due to kernel taint
[  536.637731] INFO: 0xffff880264921198-0xffff8802649212f1. First byte 0x56 instead of 0x6b
[  536.637740] INFO: Allocated in kernfs_iop_get_link+0x3e/0x1e0 age=4142 cpu=2 pid=9676
[  536.637748] 	___slab_alloc.constprop.28+0x38f/0x3d0
[  536.637753] 	__slab_alloc.isra.22.constprop.27+0x43/0x80
[  536.637758] 	kmem_cache_alloc_trace+0x237/0x2e0
[  536.637762] 	kernfs_iop_get_link+0x3e/0x1e0
[  536.637768] 	trailing_symlink+0x1e5/0x230
[  536.637772] 	path_lookupat+0x5b/0x100
[  536.637776] 	filename_lookup+0xa0/0x120
[  536.637781] 	user_path_at_empty+0x31/0x40
[  536.637785] 	SyS_faccessat+0xa6/0x210
[  536.637789] 	SyS_access+0x13/0x20
[  536.637793] 	entry_SYSCALL_64_fastpath+0x1c/0xb1
[  536.637799] INFO: Freed in kfree_link+0x9/0x10 age=4142 cpu=2 pid=9676
[  536.637804] 	__slab_free+0x3cb/0x580
[  536.637808] 	kfree+0x266/0x2e0
[  536.637812] 	kfree_link+0x9/0x10
[  536.637816] 	walk_component+0xc4/0x2d0
[  536.637820] 	path_lookupat+0x4f/0x100
[  536.637824] 	filename_lookup+0xa0/0x120
[  536.637828] 	user_path_at_empty+0x31/0x40
[  536.637833] 	SyS_faccessat+0xa6/0x210
[  536.637836] 	SyS_access+0x13/0x20
[  536.637840] 	entry_SYSCALL_64_fastpath+0x1c/0xb1
[  536.637846] INFO: Slab 0xffffea0009924800 objects=7 used=7 fp=0x          (null) flags=0x8000000000008100
[  536.637854] INFO: Object 0xffff880264921158 @offset=4440 fp=0xffff8802649267e8

...

[  536.639826] CPU: 1 PID: 9693 Comm: kms_setmode Tainted: G    BU  W       4.11.0-rc8-CI-Patchwork_4598+ #1
[  536.639827] Hardware name: Dell Inc. XPS 13 9360/093TW6, BIOS 1.3.2 01/18/2017
[  536.639828] Call Trace:
[  536.639831]  dump_stack+0x67/0x92
[  536.639832]  print_trailer+0x14b/0x230
[  536.639834]  check_bytes_and_report+0xc0/0x100
[  536.639835]  check_object+0x261/0x2b0
[  536.639855]  ? __pdp_init.isra.4+0x44/0x90 [i915]
[  536.639857]  alloc_debug_processing+0x199/0x1b0
[  536.639858]  ___slab_alloc.constprop.28+0x38f/0x3d0
[  536.639871]  ? __pdp_init.isra.4+0x44/0x90 [i915]
[  536.639872]  ? ___slab_alloc.constprop.28+0x2ab/0x3d0
[  536.639874]  ? ___slab_alloc.constprop.28+0x2ab/0x3d0
[  536.639885]  ? alloc_pdp+0x3a/0xd0 [i915]
[  536.639887]  ? save_stack.isra.2+0x53/0xa0
[  536.639899]  ? __pdp_init.isra.4+0x44/0x90 [i915]
[  536.639900]  __slab_alloc.isra.22.constprop.27+0x43/0x80
[  536.639902]  ? __slab_alloc.isra.22.constprop.27+0x43/0x80
[  536.639903]  __kmalloc+0x288/0x330
[  536.639914]  __pdp_init.isra.4+0x44/0x90 [i915]
[  536.639925]  alloc_pdp+0x62/0xd0 [i915]
[  536.639935]  gen8_ppgtt_alloc_4lvl+0xba/0x150 [i915]
[  536.639946]  ppgtt_bind_vma+0x2c/0x80 [i915]
[  536.639959]  i915_vma_bind+0xb9/0x240 [i915]
[  536.639972]  __i915_vma_do_pin+0x404/0x6b0 [i915]
[  536.639983]  i915_gem_execbuffer_reserve_vma.isra.9+0xc3/0x240 [i915]
[  536.639994]  i915_gem_execbuffer_reserve.isra.10+0x43e/0x470 [i915]
[  536.640005]  i915_gem_do_execbuffer.isra.16+0x639/0x1b80 [i915]
[  536.640007]  ? __lock_acquire+0x484/0x1ac0
[  536.640019]  i915_gem_execbuffer2+0xb5/0x220 [i915]
[  536.640021]  drm_ioctl+0x1f4/0x480
[  536.640031]  ? i915_gem_execbuffer+0x330/0x330 [i915]
[  536.640034]  do_vfs_ioctl+0x90/0x6e0


> 
> fdo#100125 https://bugs.freedesktop.org/show_bug.cgi?id=100125
> fdo#100652 https://bugs.freedesktop.org/show_bug.cgi?id=100652
> 
> fi-bdw-5557u     total:278  pass:267  dwarn:0   dfail:0   fail:0   skip:11  time:437s
> fi-bdw-gvtdvm    total:278  pass:256  dwarn:8   dfail:0   fail:0   skip:14  time:429s
> fi-bsw-n3050     total:278  pass:242  dwarn:0   dfail:0   fail:0   skip:36  time:580s
> fi-bxt-j4205     total:278  pass:259  dwarn:0   dfail:0   fail:0   skip:19  time:502s
> fi-bxt-t5700     total:278  pass:258  dwarn:0   dfail:0   fail:0   skip:20  time:545s
> fi-byt-j1900     total:278  pass:253  dwarn:1   dfail:0   fail:0   skip:24  time:484s
> fi-byt-n2820     total:278  pass:250  dwarn:0   dfail:0   fail:0   skip:28  time:481s
> fi-hsw-4770      total:278  pass:262  dwarn:0   dfail:0   fail:0   skip:16  time:416s
> fi-hsw-4770r     total:278  pass:262  dwarn:0   dfail:0   fail:0   skip:16  time:410s
> fi-ilk-650       total:278  pass:228  dwarn:0   dfail:0   fail:0   skip:50  time:412s
> fi-ivb-3520m     total:278  pass:260  dwarn:0   dfail:0   fail:0   skip:18  time:493s
> fi-ivb-3770      total:278  pass:260  dwarn:0   dfail:0   fail:0   skip:18  time:468s
> fi-kbl-7500u     total:278  pass:260  dwarn:0   dfail:0   fail:0   skip:18  time:458s
> fi-kbl-7560u     total:278  pass:266  dwarn:2   dfail:0   fail:0   skip:10  time:567s
> fi-skl-6260u     total:278  pass:268  dwarn:0   dfail:0   fail:0   skip:10  time:452s
> fi-skl-6700hq    total:278  pass:261  dwarn:0   dfail:0   fail:0   skip:17  time:584s
> fi-skl-6700k     total:278  pass:256  dwarn:4   dfail:0   fail:0   skip:18  time:459s
> fi-skl-6770hq    total:278  pass:268  dwarn:0   dfail:0   fail:0   skip:10  time:495s
> fi-skl-gvtdvm    total:278  pass:265  dwarn:0   dfail:0   fail:0   skip:13  time:432s
> fi-snb-2520m     total:278  pass:250  dwarn:0   dfail:0   fail:0   skip:28  time:523s
> fi-snb-2600      total:278  pass:248  dwarn:1   dfail:0   fail:0   skip:29  time:413s
> 
> 310077224306c08a82476bb616de679715e83485 drm-tip: 2017y-05m-02d-12h-04m-57s UTC integration manifest
> 443c742 drm/i915: Prevent the system suspend complete optimization
> 36f68e3 PCI / PM: Add needs_resume flag to avoid suspend complete optimization
> 
> == Logs ==
> 
> For more details see: https://intel-gfx-ci.01.org/CI/Patchwork_4598/


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