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Red Hat Bugzilla – Attachment 855421 Details for
Bug 1057533
[abrt] BUG: unable to handle kernel paging request at fffffffffffffff8
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i915-remove-pm-qos-on-error.patch
i915-remove-pm-qos-on-error.patch (text/plain), 1.66 KB, created by
Stanislaw Gruszka
on 2014-01-25 16:21:39 UTC
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Description:
i915-remove-pm-qos-on-error.patch
Filename:
MIME Type:
Creator:
Stanislaw Gruszka
Created:
2014-01-25 16:21:39 UTC
Size:
1.66 KB
patch
obsolete
>From 22accca01713b13dac386ca90b787aadf88f6551 Mon Sep 17 00:00:00 2001 >From: Stanislaw Gruszka <sgruszka@redhat.com> >Date: Sat, 25 Jan 2014 09:13:37 +0000 >Subject: i915: remove pm_qos request on error > >Not removing pm qos request and free memory for it can cause crash, >when some other driver use pm qos. For example, this oops: > >BUG: unable to handle kernel paging request at fffffffffffffff8 >IP: [<ffffffff81307a6b>] plist_add+0x5b/0xd0 >Call Trace: > [<ffffffff810acf25>] pm_qos_update_target+0x125/0x1e0 > [<ffffffff810ad071>] pm_qos_add_request+0x91/0x100 > [<ffffffffa053ec14>] e1000_open+0xe4/0x5b0 [e1000e] > >was caused by earlier i915 probe failure: > >[drm:i915_report_and_clear_eir] *ERROR* EIR stuck: 0x00000010, masking >[drm:init_ring_common] *ERROR* render ring initialization failed ctl 0001f001 head 00003004 tail 00000000 start 00003000 >[drm:i915_driver_load] *ERROR* failed to init modeset >i915: probe of 0000:00:02.0 failed with error -5 > >Bug report: >http://bugzilla.redhat.com/show_bug.cgi?id=1057533 > >Reported-by: Giandomenico De Tullio <ghisha@gmail.com> >Cc: stable@vger.kernel.org >Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com> >[danvet: Drop unnecessary code movement.] >Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> >--- >diff --git a/drivers/gpu/drm/i915/i915_dma.c b/drivers/gpu/drm/i915/i915_dma.c >index e177d02..15a74f9 100644 >--- a/drivers/gpu/drm/i915/i915_dma.c >+++ b/drivers/gpu/drm/i915/i915_dma.c >@@ -1685,6 +1685,7 @@ out_gem_unload: > > intel_teardown_gmbus(dev); > intel_teardown_mchbar(dev); >+ pm_qos_remove_request(&dev_priv->pm_qos); > destroy_workqueue(dev_priv->wq); > out_mtrrfree: > arch_phys_wc_del(dev_priv->gtt.mtrr); >-- >cgit v0.9.0.2-2-gbebe
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