Re: WARNING: at drivers/gpu/drm/i915/i915_drv.c:440

From: Daniel Vetter
Date: Fri Jun 01 2012 - 10:31:06 EST

On Fri, Jun 01, 2012 at 02:21:25PM +0800, Dave Young wrote:
> Today I got a lot i915 warnings on a thinkpad t400, here is the something copied from syslog:
> [Known issue?]

The gpu refuses to clear the write fifo. Which means it pretty much
disappeared into nirvana. The kernel _should_ detect this condition and
try to reset the gpu. Furthermore it should dump a useful information into
i915_error_state in debugfs. Can you please attach that (rebooting
obviously destroy the contents of that file)?

Also, your version of your kernel, xf86-video-intel, mesa and libdrm are
relevant.

Yours, Daniel
>
> Jun 1 13:31:13 localhost kernel: [15935.915986] ------------[ cut here ]------------
> Jun 1 13:31:13 localhost kernel: [15935.916009] WARNING: at drivers/gpu/drm/i915/i915_drv.c:440 __gen6_gt_wait_for_fifo+0x74/0x89()
> Jun 1 13:31:13 localhost kernel: [15935.916017] Hardware name: 4236NUC
> Jun 1 13:31:13 localhost kernel: [15935.916022] Modules linked in: fuse rfcomm bnep sunrpc vhost_net macvtap macvlan tun kvm_intel kvm btusb bluetooth uvcvideo videobuf2_core videodev media videobuf2_vmalloc videobuf2_memops pcspkr iwlwifi mac80211 cfg80211 e1000e wmi thinkpad_acpi rfkill firewire_ohci firewire_core crc_itu_t sdhci_pci [last unloaded: scsi_wait_scan]
> Jun 1 13:31:13 localhost kernel: [15935.916125] Pid: 8026, comm: Xorg Not tainted 3.4.0 #284
> Jun 1 13:31:13 localhost kernel: [15935.916131] Call Trace:
> Jun 1 13:31:13 localhost kernel: [15935.916146] [<ffffffff810333a7>] warn_slowpath_common+0x80/0x98
> Jun 1 13:31:13 localhost kernel: [15935.916157] [<ffffffff810333d4>] warn_slowpath_null+0x15/0x17
> Jun 1 13:31:13 localhost kernel: [15935.916168] [<ffffffff81358163>] __gen6_gt_wait_for_fifo+0x74/0x89
> Jun 1 13:31:13 localhost kernel: [15935.916178] [<ffffffff8135852b>] i915_write32+0x4c/0x70
> Jun 1 13:31:13 localhost kernel: [15935.916189] [<ffffffff8138b506>] ? gen6_ring_put_irq+0x31/0x8a
> Jun 1 13:31:13 localhost kernel: [15935.916199] [<ffffffff8138b538>] gen6_ring_put_irq+0x63/0x8a
> Jun 1 13:31:13 localhost kernel: [15935.916209] [<ffffffff8138b59c>] gen6_render_ring_put_irq+0x13/0x15
> Jun 1 13:31:13 localhost kernel: [15935.916222] [<ffffffff81367214>] i915_wait_request+0x2fd/0x3b3
> Jun 1 13:31:13 localhost kernel: [15935.916235] [<ffffffff81051c59>] ? wake_up_bit+0x25/0x25
> Jun 1 13:31:13 localhost kernel: [15935.916248] [<ffffffff81367368>] ? i915_gem_flush_ring+0x6b/0x139
> Jun 1 13:31:13 localhost kernel: [15935.916260] [<ffffffff813672fb>] i915_gem_object_wait_rendering+0x31/0x33
> Jun 1 13:31:13 localhost kernel: [15935.916271] [<ffffffff8136c81f>] i915_gem_do_execbuffer.clone.6+0xce7/0x129f
> Jun 1 13:31:13 localhost kernel: [15935.916284] [<ffffffff8107ab6b>] ? __lock_acquire+0xe32/0xe41
> Jun 1 13:31:13 localhost kernel: [15935.916294] [<ffffffff8107ac1a>] ? lock_release_non_nested+0xa0/0x24f
> Jun 1 13:31:13 localhost kernel: [15935.916306] [<ffffffff8136d155>] i915_gem_execbuffer2+0x114/0x183
> Jun 1 13:31:13 localhost kernel: [15935.916321] [<ffffffff810e7ec4>] ? might_fault+0x89/0x90
> Jun 1 13:31:13 localhost kernel: [15935.916334] [<ffffffff81343623>] drm_ioctl+0x2f1/0x3d3
> Jun 1 13:31:13 localhost kernel: [15935.916345] [<ffffffff810e7e7b>] ? might_fault+0x40/0x90
> Jun 1 13:31:13 localhost kernel: [15935.916355] [<ffffffff8136d041>] ? i915_gem_execbuffer+0x26a/0x26a
> Jun 1 13:31:13 localhost kernel: [15935.916366] [<ffffffff810e7e7b>] ? might_fault+0x40/0x90
> Jun 1 13:31:13 localhost kernel: [15935.916378] [<ffffffff8100add4>] ? check_for_xstate+0x2f/0x8a
> Jun 1 13:31:13 localhost kernel: [15935.916391] [<ffffffff8111c5cc>] do_vfs_ioctl+0x47d/0x4bc
> Jun 1 13:31:13 localhost kernel: [15935.916405] [<ffffffff81044a98>] ? do_sigaltstack+0xaf/0x14e
> Jun 1 13:31:13 localhost kernel: [15935.916417] [<ffffffff815e0255>] ? retint_swapgs+0x13/0x1b
> Jun 1 13:31:13 localhost kernel: [15935.916430] [<ffffffff8110f313>] ? fget_light+0x3d/0x9c
> Jun 1 13:31:13 localhost kernel: [15935.916441] [<ffffffff8111c65c>] sys_ioctl+0x51/0x75
> Jun 1 13:31:13 localhost kernel: [15935.916452] [<ffffffff815e677d>] system_call_fastpath+0x1a/0x1f
> Jun 1 13:31:13 localhost kernel: [15935.916460] ---[ end trace 93dc2a59f9772003 ]---
> Jun 1 13:31:13 localhost kernel: [15935.921817] ------------[ cut here ]------------
> Jun 1 13:31:13 localhost kernel: [15935.921829] WARNING: at drivers/gpu/drm/i915/i915_drv.c:440 __gen6_gt_wait_for_fifo+0x74/0x89()
> Jun 1 13:31:13 localhost kernel: [15935.921836] Hardware name: 4236NUC
> Jun 1 13:31:13 localhost kernel: [15935.921840] Modules linked in: fuse rfcomm bnep sunrpc vhost_net macvtap macvlan tun kvm_intel kvm btusb bluetooth uvcvideo videobuf2_core videodev media videobuf2_vmalloc videobuf2_memops pcspkr iwlwifi mac80211 cfg80211 e1000e wmi thinkpad_acpi rfkill firewire_ohci firewire_core crc_itu_t sdhci_pci [last unloaded: scsi_wait_scan]
> Jun 1 13:31:13 localhost kernel: [15935.921931] Pid: 8026, comm: Xorg Tainted: G W 3.4.0 #284
> Jun 1 13:31:13 localhost kernel: [15935.921937] Call Trace:
> Jun 1 13:31:13 localhost kernel: [15935.921947] [<ffffffff810333a7>] warn_slowpath_common+0x80/0x98
> Jun 1 13:31:13 localhost kernel: [15935.921956] [<ffffffff810333d4>] warn_slowpath_null+0x15/0x17
> Jun 1 13:31:13 localhost kernel: [15935.921966] [<ffffffff81358163>] __gen6_gt_wait_for_fifo+0x74/0x89
> Jun 1 13:31:13 localhost kernel: [15935.921975] [<ffffffff8135852b>] i915_write32+0x4c/0x70
> Jun 1 13:31:13 localhost kernel: [15935.921984] [<ffffffff8138b1c3>] ring_write_tail+0x1c/0x1e
> Jun 1 13:31:13 localhost kernel: [15935.921994] [<ffffffff8138c446>] intel_ring_advance+0x18/0x1a
> Jun 1 13:31:13 localhost kernel: [15935.922003] [<ffffffff8138c5a2>] blt_ring_flush+0x66/0x70
> Jun 1 13:31:13 localhost kernel: [15935.922015] [<ffffffff81367368>] i915_gem_flush_ring+0x6b/0x139
> Jun 1 13:31:13 localhost kernel: [15935.922026] [<ffffffff8136c716>] i915_gem_do_execbuffer.clone.6+0xbde/0x129f
> Jun 1 13:31:13 localhost kernel: [15935.922037] [<ffffffff8107ab6b>] ? __lock_acquire+0xe32/0xe41
> Jun 1 13:31:13 localhost kernel: [15935.922047] [<ffffffff8107ac1a>] ? lock_release_non_nested+0xa0/0x24f
> Jun 1 13:31:13 localhost kernel: [15935.922058] [<ffffffff8136d155>] i915_gem_execbuffer2+0x114/0x183
> Jun 1 13:31:13 localhost kernel: [15935.922070] [<ffffffff810e7ec4>] ? might_fault+0x89/0x90
> Jun 1 13:31:13 localhost kernel: [15935.922080] [<ffffffff81343623>] drm_ioctl+0x2f1/0x3d3
> Jun 1 13:31:13 localhost kernel: [15935.922091] [<ffffffff810e7e7b>] ? might_fault+0x40/0x90
> Jun 1 13:31:13 localhost kernel: [15935.922100] [<ffffffff8136d041>] ? i915_gem_execbuffer+0x26a/0x26a
> Jun 1 13:31:13 localhost kernel: [15935.922112] [<ffffffff810e7e7b>] ? might_fault+0x40/0x90
> Jun 1 13:31:13 localhost kernel: [15935.922121] [<ffffffff8100add4>] ? check_for_xstate+0x2f/0x8a
> Jun 1 13:31:13 localhost kernel: [15935.922133] [<ffffffff8111c5cc>] do_vfs_ioctl+0x47d/0x4bc
> Jun 1 13:31:13 localhost kernel: [15935.922145] [<ffffffff81044a98>] ? do_sigaltstack+0xaf/0x14e
> Jun 1 13:31:13 localhost kernel: [15935.922154] [<ffffffff815e0255>] ? retint_swapgs+0x13/0x1b
> Jun 1 13:31:13 localhost kernel: [15935.922165] [<ffffffff8110f313>] ? fget_light+0x3d/0x9c
> Jun 1 13:31:13 localhost kernel: [15935.922176] [<ffffffff8111c65c>] sys_ioctl+0x51/0x75
> Jun 1 13:31:13 localhost kernel: [15935.922185] [<ffffffff815e677d>] system_call_fastpath+0x1a/0x1f
> Jun 1 13:31:13 localhost kernel: [15935.922193] ---[ end trace 93dc2a59f9772004 ]---
> Jun 1 13:31:13 localhost kernel: [15935.928465] ------------[ cut here ]------------
> Jun 1 13:31:13 localhost kernel: [15935.928476] WARNING: at drivers/gpu/drm/i915/i915_drv.c:440 __gen6_gt_wait_for_fifo+0x74/0x89()
> Jun 1 13:31:13 localhost kernel: [15935.928482] Hardware name: 4236NUC
> Jun 1 13:31:13 localhost kernel: [15935.928486] Modules linked in: fuse rfcomm bnep sunrpc vhost_net macvtap macvlan tun kvm_intel kvm btusb bluetooth uvcvideo videobuf2_core videodev media videobuf2_vmalloc videobuf2_memops pcspkr iwlwifi mac80211 cfg80211 e1000e wmi thinkpad_acpi rfkill firewire_ohci firewire_core crc_itu_t sdhci_pci [last unloaded: scsi_wait_scan]
> Jun 1 13:31:13 localhost kernel: [15935.928577] Pid: 8026, comm: Xorg Tainted: G W 3.4.0 #284
> Jun 1 13:31:13 localhost kernel: [15935.928583] Call Trace:
> Jun 1 13:31:13 localhost kernel: [15935.928592] [<ffffffff810333a7>] warn_slowpath_common+0x80/0x98
> Jun 1 13:31:13 localhost kernel: [15935.928602] [<ffffffff810333d4>] warn_slowpath_null+0x15/0x17
> Jun 1 13:31:13 localhost kernel: [15935.928612] [<ffffffff81358163>] __gen6_gt_wait_for_fifo+0x74/0x89
> Jun 1 13:31:13 localhost kernel: [15935.928622] [<ffffffff8135852b>] i915_write32+0x4c/0x70
> Jun 1 13:31:13 localhost kernel: [15935.928631] [<ffffffff8138b85a>] ? gen6_ring_get_irq+0x44/0x9a
> Jun 1 13:31:13 localhost kernel: [15935.928641] [<ffffffff8138b88f>] gen6_ring_get_irq+0x79/0x9a
> Jun 1 13:31:13 localhost kernel: [15935.928651] [<ffffffff8138b8ed>] gen6_render_ring_get_irq+0x13/0x15
> Jun 1 13:31:13 localhost kernel: [15935.928663] [<ffffffff813670ac>] i915_wait_request+0x195/0x3b3
> Jun 1 13:31:13 localhost kernel: [15935.928675] [<ffffffff81367368>] ? i915_gem_flush_ring+0x6b/0x139
> Jun 1 13:31:13 localhost kernel: [15935.928688] [<ffffffff813672fb>] i915_gem_object_wait_rendering+0x31/0x33
> Jun 1 13:31:13 localhost kernel: [15935.928698] [<ffffffff8136c81f>] i915_gem_do_execbuffer.clone.6+0xce7/0x129f
> Jun 1 13:31:13 localhost kernel: [15935.928709] [<ffffffff8107ab6b>] ? __lock_acquire+0xe32/0xe41
> Jun 1 13:31:13 localhost kernel: [15935.928719] [<ffffffff8107ac1a>] ? lock_release_non_nested+0xa0/0x24f
> Jun 1 13:31:13 localhost kernel: [15935.928731] [<ffffffff8136d155>] i915_gem_execbuffer2+0x114/0x183
> Jun 1 13:31:13 localhost kernel: [15935.928742] [<ffffffff810e7ec4>] ? might_fault+0x89/0x90
> Jun 1 13:31:13 localhost kernel: [15935.928752] [<ffffffff81343623>] drm_ioctl+0x2f1/0x3d3
> Jun 1 13:31:13 localhost kernel: [15935.928764] [<ffffffff810e7e7b>] ? might_fault+0x40/0x90
> Jun 1 13:31:13 localhost kernel: [15935.928773] [<ffffffff8136d041>] ? i915_gem_execbuffer+0x26a/0x26a
> Jun 1 13:31:13 localhost kernel: [15935.928785] [<ffffffff810e7e7b>] ? might_fault+0x40/0x90
> Jun 1 13:31:13 localhost kernel: [15935.928794] [<ffffffff8100add4>] ? check_for_xstate+0x2f/0x8a
> Jun 1 13:31:13 localhost kernel: [15935.928806] [<ffffffff8111c5cc>] do_vfs_ioctl+0x47d/0x4bc
> Jun 1 13:31:13 localhost kernel: [15935.928818] [<ffffffff81044a98>] ? do_sigaltstack+0xaf/0x14e
> Jun 1 13:31:13 localhost kernel: [15935.928828] [<ffffffff815e0255>] ? retint_swapgs+0x13/0x1b
> Jun 1 13:31:13 localhost kernel: [15935.928838] [<ffffffff8110f313>] ? fget_light+0x3d/0x9c
> Jun 1 13:31:13 localhost kernel: [15935.928850] [<ffffffff8111c65c>] sys_ioctl+0x51/0x75
> Jun 1 13:31:13 localhost kernel: [15935.928859] [<ffffffff815e677d>] system_call_fastpath+0x1a/0x1f
> Jun 1 13:31:13 localhost kernel: [15935.928866] ---[ end trace 93dc2a59f9772005 ]---
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--
Daniel Vetter
Mail: daniel@xxxxxxxx
Mobile: +41 (0)79 365 57 48
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