Your message dated Mon, 22 Apr 2024 17:35:49 +0200
with message-id <20240422173549.4a0ba...@eridu.kheb.ignorelist.com>
and subject line Bug disappeared
has caused the Debian Bug report #1053380,
regarding qgit: Segmentation fault (during ld binding of libGL.so.1)
to be marked as done.
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--
1053380: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1053380
Debian Bug Tracking System
Contact ow...@bugs.debian.org with problems
--- Begin Message ---
Package: qgit
Version: 2.10-2
Severity: important
Dear Maintainer,
after upgrade from debian 11 to debian 12, some qt application will crash
(Segmentation fault).
qgit crashes, but also qt5ct, 2048-qt, qbittorrent.
After searching the web, I've found [1] and [2] that point me to an idea, a
possible digging.
[1] https://github.com/FrodeSolheim/fs-uae/issues/31
[2] http://fs-uae.net/2015/01/27/fs-uae-2-4-3-released
Many thanks to NVIDIA which actually tracked down the bug in FS-UAE! The
problem was an unused function (mprotected),
a legacy from older WinUAE code, which was exported and caused the
NVIDIA drivers to load this function instead of the
correct one from libc. Iām quite impressed that they contacted me with
information about the bug, and I think this shows
how serious they are about their Linux drivers š
My idea was related to the use of libGL by the qt libraries.
And, finally, I've found that article [3] that tell about the possibility of
testing my idea.
[3]
https://forum.qt.io/topic/90786/turn-off-opengl-optimization-via-qt-environment-variable
Here is the behavior I observed and the digging into the problem.
I've found that the last symbol binded was sigaddset, so I searched for it.
Maybe I'd have to search for the last lib?
Here is what I've done:
$ qgit
Segmentation fault
$ LD_DEBUG=bindings qgit >/tmp/test_sigv 2>&1
Segmentation fault
$ grep sigaddset /tmp/test_sigv
60212: binding file /lib/x86_64-linux-gnu/libglib-2.0.so.0 [0] to
/lib/x86_64-linux-gnu/libc.so.6 [0]: normal symbol `sigaddset' [GLIBC_2.2.5]
60212: binding file /lib/x86_64-linux-gnu/libsystemd.so.0 [0] to
/lib/x86_64-linux-gnu/libc.so.6 [0]: normal symbol `sigaddset' [GLIBC_2.2.5]
60212: binding file /lib/x86_64-linux-gnu/libdbus-1.so.3 [0] to
/lib/x86_64-linux-gnu/libc.so.6 [0]: normal symbol `sigaddset' [GLIBC_2.2.5]
60212: binding file /lib/x86_64-linux-gnu/libGL.so.1 [0] to
/lib/x86_64-linux-gnu/libc.so.6 [0]: normal symbol `sigaddset' [GLIBC_2.2.5]
$ tail -10 /tmp/test_sigv
60212: binding file /lib/x86_64-linux-gnu/libQt5XcbQpa.so.5 [0] to
/lib/x86_64-linux-gnu/libQt5Core.so.5 [0]: normal symbol
`_ZN6QTimerC1EP7QObject' [Qt_5]
60212: binding file /lib/x86_64-linux-gnu/libQt5XcbQpa.so.5 [0] to
/lib/x86_64-linux-gnu/libQt5Core.so.5 [0]: normal symbol
`_ZN7QThreadC2EP7QObject' [Qt_5]
60212: binding file /lib/x86_64-linux-gnu/libQt5XcbQpa.so.5 [0] to
/lib/x86_64-linux-gnu/libQt5Core.so.5 [0]: normal symbol
`_ZN14QWaitConditionC1Ev' [Qt_5]
60212: binding file /lib/x86_64-linux-gnu/libQt5XcbQpa.so.5 [0] to
/lib/x86_64-linux-gnu/libQt5Core.so.5 [0]: normal symbol
`_Z15qAddPostRoutinePFvvE' [Qt_5]
60212: binding file /lib/x86_64-linux-gnu/libQt5XcbQpa.so.5 [0] to
/lib/x86_64-linux-gnu/libQt5Core.so.5 [0]: normal symbol
`_ZN7QThread5startENS_8PriorityE' [Qt_5]
60212: binding file /lib/x86_64-linux-gnu/libQt5Core.so.5 [0] to
/lib/x86_64-linux-gnu/libc.so.6 [0]: normal symbol `pthread_attr_init'
[GLIBC_2.2.5]
60212: binding file /lib/x86_64-linux-gnu/libQt5Core.so.5 [0] to
/lib/x86_64-linux-gnu/libc.so.6 [0]: normal symbol
`pthread_attr_setdetachstate' [GLIBC_2.2.5]
60212: binding file /lib/x86_64-linux-gnu/libQt5Core.so.5 [0] to
/lib/x86_64-linux-gnu/libc.so.6 [0]: normal symbol
`pthread_attr_setinheritsched' [GLIBC_2.2.5]
60212: binding file /lib/x86_64-linux-gnu/libGL.so.1 [0] to
/lib/x86_64-linux-gnu/libc.so.6 [0]: normal symbol `__libc_current_sigrtmin'
[GLIBC_2.2.5]
60212: binding file /lib/x86_64-linux-gnu/libGL.so.1 [0] to
/lib/x86_64-linux-gnu/libc.so.6 [0]: normal symbol `sigaddset' [GLIBC_2.2.5]
$ export __GL_WRITE_TEXT_SECTION=0
$ LD_DEBUG=bindings qgit >/tmp/test_ok 2>&1
$ grep sigaddset /tmp/test_ok
58885: binding file /lib/x86_64-linux-gnu/libglib-2.0.so.0 [0] to
/lib/x86_64-linux-gnu/libc.so.6 [0]: normal symbol `sigaddset' [GLIBC_2.2.5]
58885: binding file /lib/x86_64-linux-gnu/libsystemd.so.0 [0] to
/lib/x86_64-linux-gnu/libc.so.6 [0]: normal symbol `sigaddset' [GLIBC_2.2.5]
58885: binding file /lib/x86_64-linux-gnu/libdbus-1.so.3 [0] to
/lib/x86_64-linux-gnu/libc.so.6 [0]: normal symbol `sigaddset' [GLIBC_2.2.5]
Best regards,
Michel
-- System Information:
Debian Release: 12.1
APT prefers stable
APT policy: (990, 'stable'), (500, 'stable-updates'), (500, 'stable-security')
Architecture: amd64 (x86_64)
Foreign Architectures: i386
Kernel: Linux 6.1.0-12-amd64 (SMP w/4 CPU threads; PREEMPT)
Kernel taint flags: TAINT_PROPRIETARY_MODULE, TAINT_OOT_MODULE,
TAINT_UNSIGNED_MODULE
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8), LANGUAGE=en
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
Versions of packages qgit depends on:
ii git 1:2.39.2-1.1
ii libc6 2.36-9+deb12u1
ii libgcc-s1 12.2.0-14
ii libqt5core5a 5.15.8+dfsg-11
ii libqt5gui5 5.15.8+dfsg-11
ii libqt5widgets5 5.15.8+dfsg-11
ii libstdc++6 12.2.0-14
qgit recommends no packages.
Versions of packages qgit suggests:
ii source-highlight 3.1.9-4.2+b3
-- no debconf information
--- End Message ---
--- Begin Message ---
Dear maintainer,
the bug disappeared after upgrading to kernel 6.1.0-20-amd64 and driver
nvidia-legacy-390xx 390.157.
I'm no longer forced to use "__GL_WRITE_TEXT_SECTION=0
<someqtapplication>" to prevent it from crashing.
I've re-tester qgit qasmixer flameshot, and all those applications work.
Best regards,
Michel
pgp1GxGjhDZZ3.pgp
Description: Signature digitale OpenPGP
--- End Message ---
