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On Tue, May 17, 2016 at 6:44 AM, Thorsten Behrens <thb@libreoffice.org> wrote:
Norbert Thiebaud wrote:
The threaded work then raise() due to some memory problem and out
signal handler try to acquire the solar mutex ->deadlock

Eek, that's ugly. Then again, at the core is the OOM condition, which
needs solving independently. Per chance, is that happening on a box
with massive amounts of CPU threads?

it is on the ci builder, so yeah 32 thread or so.

but I disagree that it is _at the core_

at the core this exhibit 2 things:
1/ we do a lot of thing that is verboten in a signal handler.
2/ taking a lock that rely on other thread to move forward while
holding the solarmutex is begging for deadlock.

Norbert

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