[Bug 111085] [CI][SHARDS] igt at gem_userptr_blits@readonly-unsync - fail - WARNING: CPU: 2 PID: 1202 at mm/filemap.c:220 unaccount_page_cache_page

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Mon Jul 8 09:32:02 UTC 2019


https://bugs.freedesktop.org/show_bug.cgi?id=111085

--- Comment #2 from Chris Wilson <chris at chris-wilson.co.uk> ---
The complaint is that it saw a dirty page... But all dirt should have been
flushed by the invalidate/truncate itself.

One possibility is that the rcu fput() is racing against shmemfs activity...
Except we fput after we teardown the pages on freeing the object -- there
should not be a race!

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