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Date:      Thu, 05 Mar 2020 02:28:11 +0000
From:      bugzilla-noreply@freebsd.org
To:        multimedia@FreeBSD.org
Subject:   [Bug 244557] multimedia/ffmpeg core dumps on 11.2 (signal 10 bus error)
Message-ID:  <bug-244557-12827-iJOkwLoNQi@https.bugs.freebsd.org/bugzilla/>
In-Reply-To: <bug-244557-12827@https.bugs.freebsd.org/bugzilla/>
References:  <bug-244557-12827@https.bugs.freebsd.org/bugzilla/>

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D244557

--- Comment #1 from Jan Beich <jbeich@FreeBSD.org> ---
Probably unrelated to bug 242147 given it affects amd64.

(In reply to Palle Girgensohn from comment #0)
> ffmpeg: 4.2.1_5,1 -> 4.2.2_6,1
[...]
> 11.2-RELEASE-p2 (yeah, I know, old, sorry :-)

Try bisecting ports changes (should take ~13 steps).

> (gdb) bt
> #0  0x0000000807ba8f60 in x264_8_trellis_coefn () from /usr/local/lib/lib=
x264.so.159
> #1  0x0000000807a7cfee in x264_8_frame_shift () from /usr/local/lib/libx2=
64.so.159
> #2  0x0000000807a7330d in x264_8_frame_shift () from /usr/local/lib/libx2=
64.so.159
> #3  0x0000000807ad1c93 in x264_8_frame_shift () from /usr/local/lib/libx2=
64.so.159
> #4  0x0000000807acd4fd in x264_8_frame_shift () from /usr/local/lib/libx2=
64.so.159
> #5  0x0000000807ad418b in x264_8_threadpool_init () from /usr/local/lib/l=
ibx264.so.159
> #6  0x0000000803fefc06 in thread_start (curthread=3D0x80ed2f200) at /usr/=
src/lib/libthr/thread/thr_create.c:289
> #7  0x0000000000000000 in ?? ()

Not useful as this thread is different from the one that crashed.

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