* [3.4-rc5, SNB] transaction abort when suspending
@ 2012-05-03 13:07 Daniel J Blueman
2012-05-03 13:19 ` Daniel Vetter
0 siblings, 1 reply; 2+ messages in thread
From: Daniel J Blueman @ 2012-05-03 13:07 UTC (permalink / raw)
To: intel-gfx
At suspend time on 3.4-rc5 with SNB, we see a i915 register read
transaction aborted, presumably as the GT is powered down:
WARNING: at drivers/gpu/drm/i915/i915_drv.c:398
gen6_gt_check_fifodbg.isra.6+0x3b/0x50 [i915]()
Hardware name: Latitude E5420
MMIO read or write has been dropped ffffffff
Modules linked in: brd dm_crypt dm_mod kvm_intel kvm coretemp
microcode uvcvideo videobuf2_core videodev videobuf2_vmalloc
videobuf2_memops iwlwifi binfmt_misc btrfs i915 cfbcopyarea video
cfbimgblt cfbfillrect
Pid: 23468, comm: kworker/u:13 Tainted: G W 3.4.0-rc5-debug #10
Call Trace:
[<ffffffff8103da3a>] warn_slowpath_common+0x7a/0xb0
[<ffffffff8103db11>] warn_slowpath_fmt+0x41/0x50
[<ffffffffa0020cd5>] ? i915_read32+0x65/0xb0 [i915]
[<ffffffffa002055b>] gen6_gt_check_fifodbg.isra.6+0x3b/0x50 [i915]
[<ffffffffa00209e9>] __gen6_gt_force_wake_put+0x19/0x20 [i915]
[<ffffffffa0020d09>] i915_read32+0x99/0xb0 [i915]
[<ffffffffa0024275>] i915_update_gfx_val+0x85/0xe0 [i915]
[<ffffffffa0041c4b>] intel_idle_update+0x4b/0xb0 [i915]
[<ffffffff81058e96>] process_one_work+0x1b6/0x460
[<ffffffff81058e38>] ? process_one_work+0x158/0x460
[<ffffffffa0041c00>] ? intel_decrease_pllclock+0x130/0x130 [i915]
[<ffffffff81059db4>] worker_thread+0x124/0x2d0
[<ffffffff81059c90>] ? manage_workers.isra.25+0x120/0x120
[<ffffffff8105ee3e>] kthread+0x8e/0xa0
[<ffffffff815b6314>] kernel_thread_helper+0x4/0x10
[<ffffffff81069977>] ? finish_task_switch+0x77/0x100
[<ffffffff815b455b>] ? _raw_spin_unlock_irq+0x2b/0x50
[<ffffffff815b49d9>] ? retint_restore_args+0xe/0xe
[<ffffffff8105edb0>] ? __init_kthread_worker+0x70/0x70
[<ffffffff815b6310>] ? gs_change+0xb/0xb
Thanks,
Daniel
--
Daniel J Blueman
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: [3.4-rc5, SNB] transaction abort when suspending
2012-05-03 13:07 [3.4-rc5, SNB] transaction abort when suspending Daniel J Blueman
@ 2012-05-03 13:19 ` Daniel Vetter
0 siblings, 0 replies; 2+ messages in thread
From: Daniel Vetter @ 2012-05-03 13:19 UTC (permalink / raw)
To: Daniel J Blueman; +Cc: intel-gfx
On Thu, May 03, 2012 at 09:07:03PM +0800, Daniel J Blueman wrote:
> At suspend time on 3.4-rc5 with SNB, we see a i915 register read
> transaction aborted, presumably as the GT is powered down:
>
> WARNING: at drivers/gpu/drm/i915/i915_drv.c:398
> gen6_gt_check_fifodbg.isra.6+0x3b/0x50 [i915]()
> Hardware name: Latitude E5420
> MMIO read or write has been dropped ffffffff
> Modules linked in: brd dm_crypt dm_mod kvm_intel kvm coretemp
> microcode uvcvideo videobuf2_core videodev videobuf2_vmalloc
> videobuf2_memops iwlwifi binfmt_misc btrfs i915 cfbcopyarea video
> cfbimgblt cfbfillrect
> Pid: 23468, comm: kworker/u:13 Tainted: G W 3.4.0-rc5-debug #10
> Call Trace:
> [<ffffffff8103da3a>] warn_slowpath_common+0x7a/0xb0
> [<ffffffff8103db11>] warn_slowpath_fmt+0x41/0x50
> [<ffffffffa0020cd5>] ? i915_read32+0x65/0xb0 [i915]
> [<ffffffffa002055b>] gen6_gt_check_fifodbg.isra.6+0x3b/0x50 [i915]
> [<ffffffffa00209e9>] __gen6_gt_force_wake_put+0x19/0x20 [i915]
> [<ffffffffa0020d09>] i915_read32+0x99/0xb0 [i915]
> [<ffffffffa0024275>] i915_update_gfx_val+0x85/0xe0 [i915]
> [<ffffffffa0041c4b>] intel_idle_update+0x4b/0xb0 [i915]
> [<ffffffff81058e96>] process_one_work+0x1b6/0x460
> [<ffffffff81058e38>] ? process_one_work+0x158/0x460
> [<ffffffffa0041c00>] ? intel_decrease_pllclock+0x130/0x130 [i915]
> [<ffffffff81059db4>] worker_thread+0x124/0x2d0
> [<ffffffff81059c90>] ? manage_workers.isra.25+0x120/0x120
> [<ffffffff8105ee3e>] kthread+0x8e/0xa0
> [<ffffffff815b6314>] kernel_thread_helper+0x4/0x10
> [<ffffffff81069977>] ? finish_task_switch+0x77/0x100
> [<ffffffff815b455b>] ? _raw_spin_unlock_irq+0x2b/0x50
> [<ffffffff815b49d9>] ? retint_restore_args+0xe/0xe
> [<ffffffff8105edb0>] ? __init_kthread_worker+0x70/0x70
> [<ffffffff815b6310>] ? gs_change+0xb/0xb
This is just ironlake code running on snb that shouldn't run on snb.
Otherwise no harmful side-effects known - the warning is newly added to
3.4. Patch to fix this is on track to get merged into 3.4-rc and already
landed in drm-intel-fixes as:
commit e90f3b61f4432e3c5bb6b57f4b3e8d8cba747541
Author: Chris Wilson <chris@chris-wilson.co.uk>
Date: Mon Apr 30 19:35:02 2012 +0100
drm/i915: Only enable IPS polling for gen5
Thanks for the report.
-Daniel
--
Daniel Vetter
Mail: daniel@ffwll.ch
Mobile: +41 (0)79 365 57 48
^ permalink raw reply [flat|nested] 2+ messages in thread
end of thread, other threads:[~2012-05-03 13:17 UTC | newest]
Thread overview: 2+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2012-05-03 13:07 [3.4-rc5, SNB] transaction abort when suspending Daniel J Blueman
2012-05-03 13:19 ` Daniel Vetter
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.