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authorLinus Torvalds <torvalds@linux-foundation.org>2017-02-10 14:23:45 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2017-02-10 14:23:45 -0800
commit7fe654dca20892f37226c31bdd2d5b932f8d843a (patch)
tree0a7d3c1e4eff0a0194fc265efae10ad1cbd2e0c5 /drivers/usb/serial/qcaux.c
parent3ebc7033168d43d12e4941f48a6f257d3f1ea1b5 (diff)
parent0839ffb83e44e5ff1843e932592525fc2bff23ff (diff)
Merge tag 'nfsd-4.10-3' of git://linux-nfs.org/~bfields/linux
Pull nfsd revert from Bruce Fields: "This patch turned out to have a couple problems. The problems are fixable, but at least one of the fixes is a little ugly. The original bug has always been there, so we can wait another week or two to get this right" * tag 'nfsd-4.10-3' of git://linux-nfs.org/~bfields/linux: nfsd: Revert "nfsd: special case truncates some more"
Diffstat (limited to 'drivers/usb/serial/qcaux.c')
0 files changed, 0 insertions, 0 deletions
0 do_vfs_ioctl+0xa3/0x5e0 SyS_ioctl+0x79/0x90 entry_SYSCALL_64_fastpath+0x13/0x94 - i915 unpin_work workqueue: intel_unpin_work_fn+0x58/0x140 [i915] process_one_work+0x1f1/0x480 worker_thread+0x48/0x4d0 kthread+0x101/0x140 and this patch purely papers over the issue by adding a NULL pointer check and a WARN_ON_ONCE() to avoid the oops that would then generally make the machine unresponsive. Other callers of i915_gem_object_to_ggtt() seem to also check for the returned pointer being NULL and warn about it, so this clearly has happened before in other places. [ Reported it originally to the i915 developers on Jan 8, applying the ugly workaround on my own now after triggering the problem for the second time with no feedback. This is likely to be the same bug reported as https://bugs.freedesktop.org/show_bug.cgi?id=98829 https://bugs.freedesktop.org/show_bug.cgi?id=99134 which has a patch for the underlying problem, but it hasn't gotten to me, so I'm applying the workaround. ] Cc: Daniel Vetter <daniel.vetter@intel.com> Cc: Jani Nikula <jani.nikula@linux.intel.com> Cc: Ville Syrjälä <ville.syrjala@linux.intel.com> Cc: Chris Wilson <chris@chris-wilson.co.uk> Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Cc: Imre Deak <imre.deak@intel.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'kernel/time/alarmtimer.c')