[Bug 70944] 2.99.905 sigbus frequently when running "x11perf -copyplane500" with SNA

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=70944

--- Comment #17 from intelgraphics7 at gmx-topmail.de ---
I tried the assertions but never hit one.

But I've just noticed something else. Your suspicion about retired upload
buffers might meet the mark.
My test case seems to make the X server allocating memory over and over and not
releasing all of them. So the amount of free memory is constantly going down
when I start the "x11perf -copyplane500" until the point where it's really low
and then the SIGBUS happens. So I'm going to try your "Check for retired upload
buffers after checking for an idle ring" fix and see if that helps my issue.

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