]> git.proxmox.com Git - mirror_ubuntu-kernels.git/commit
drm/i915: Show vma allocator stack when in doubt
authorChris Wilson <chris@chris-wilson.co.uk>
Thu, 28 Jun 2018 13:22:06 +0000 (14:22 +0100)
committerChris Wilson <chris@chris-wilson.co.uk>
Thu, 28 Jun 2018 19:56:35 +0000 (20:56 +0100)
commit10195b1e4411191a30456e3e60bc539531b17053
tree6238abb5fcec91d704a8ffab05837bc85b7dba37
parenta24362ead99ab5d39b594a7b4ff48abc9addc059
drm/i915: Show vma allocator stack when in doubt

At the moment, gem_exec_gttfill fails with a sporadic EBUSY due to us
wanting to unbind a pinned batch. Let's dump who first bound that vma to
see if that helps us identify who still unexpectedly has it pinned.

v2: We cannot allocate inside the printer (as it may be on an fs-reclaim
path), so hope for the best and build the string on the stack
v3: stack depth of 16 routinely overflows a 512 character string, limit
it to 12 to avoid unsightly truncation.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180628132206.8329-1-chris@chris-wilson.co.uk
drivers/gpu/drm/i915/i915_vma.c