Created attachment 142357 [details] i915 logs during this issue, which were repeating every two minutes. I was playing a game in Dolphin, configured to use Vulkan as its renderer backend, and suddenly it stopped refreshing the display, I could still ssh to the computer, but no matter which program I would stop, be it Dolphin or Sway, and no matter which sysrq I pressed, the same image was still displayed. This is using Mesa 18.2.4 and Linux 4.18.16 from ArchLinux, using Dolphin 5.0-r8983.
Hi, provide please also information about your HW, CPU/GPU info.
Hi, my CPU is an i5-3210m as found in the Lenovo Thinkpad X230, and my GPU is the HD4000 found on this CPU.
commit 484d9a844d0d0aeaa4cd3cec20885b7de9986a55 (HEAD -> drm-intel-next-queued, drm-intel/for-linux-next, drm-intel/drm-intel-next-queued) Author: Chris Wilson <chris@chris-wilson.co.uk> Date: Tue Jan 15 12:44:42 2019 +0000 drm/i915/userptr: Avoid struct_mutex recursion for mmu_invalidate_range_start Since commit 93065ac753e4 ("mm, oom: distinguish blockable mode for mmu notifiers") we have been able to report failure from mmu_invalidate_range_start which allows us to use a trylock on the struct_mutex to avoid potential recursion and report -EBUSY instead. Furthermore, this allows us to pull the work into the main callback and avoid the sleight-of-hand in using a workqueue to avoid lockdep. However, not all paths to mmu_invalidate_range_start are prepared to handle failure, so instead of reporting the recursion, deal with it by propagating the failure upwards, who can decide themselves to handle it or report it. v2: Mark up the recursive lock behaviour and comment on the various weak points. v3: Follow commit 3824e41975ae ("drm/i915: Use mutex_lock_killable() from inside the shrinker") and also use mutex_lock_killable(). v3.1: No leak on EINTR. Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=108375 References: 93065ac753e4 ("mm, oom: distinguish blockable mode for mmu notifiers") Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20190115124442.3500-1-chris@chris-wilson.co.uk
Link, if the issue doesn't appear again for the same reason, I can close this bug.
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