8.0.28-0ubuntu0.20.04.3 is the current version, and it still contains
the patch for this issue.
What version did you install that triggered the issue, and where did you
get it?
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I would like to report the same problem happening again with the latest version
of libmysqlclient21.
I am speaking about this bug:
https://stackoverflow.com/questions/63307453/cannot-allocate-memory-in-static-tls-block-in-a-python-flask-application
Which again was solved downgrading to the
This bug was fixed in the package mysql-8.0 - 8.0.21-0ubuntu4
---
mysql-8.0 (8.0.21-0ubuntu4) groovy; urgency=medium
* SECURITY REGRESSION: libmysqlclient loading issues (LP: #1889851)
- debian/patches/revert_faster_tls_model.patch: revert an upstream
commit that switches
This bug was fixed in the package mysql-8.0 - 8.0.21-0ubuntu0.20.04.4
---
mysql-8.0 (8.0.21-0ubuntu0.20.04.4) focal-security; urgency=medium
* SECURITY REGRESSION: libmysqlclient loading issues (LP: #1889851)
- debian/patches/revert_faster_tls_model.patch: revert an upstream
A simpler fix is to add a cmake flag to override the tls-model flag:
-DCMAKE_CXX_FLAGS="-ftls-model=global-dynamic" \
to debian/rules
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https://bugs.launchpad.net/bugs/1889851
Title:
** Also affects: mysql-8.0 (Ubuntu Groovy)
Importance: High
Status: Confirmed
** Also affects: mysql-8.0 (Ubuntu Focal)
Importance: Undecided
Status: New
** Changed in: mysql-8.0 (Ubuntu Focal)
Importance: Undecided => High
** Changed in: mysql-8.0 (Ubuntu Focal)
(See bug 1890170 for another reproducer)
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Title:
Driver QMysql can't be loaded
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Lars, I think that is what is happening, yes.
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Title:
Driver QMysql can't be loaded
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Verified that reverting the commit Marc suggested makes the test case
pass.
If I understand it correctly, STATIC_TLS is a limited resource, so if
the python wrapping loads other libraries that also use it, but your c
program doesn't?
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As loaded by python:
0x72dd4460 0x72e0304e Yes (*)
/lib/x86_64-linux-gnu/libQt5Sql.so.5
I was trying to get a different POV on the same lib, removing python out
of the picture.
Install mysql and create a DB.
$ apt install mysql-server
$ systemctl start mysql
$ systemctl
Verified with upstream packages as well. The test case also works as
expected with 8.0.20, so it was introduced in 8.0.21.
I'll do a test build to see if reverting that commit fixes it. Thanks
for the tip, Marc :)
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Possibly related:
https://github.com/mysql/mysql-server/commit/735bd2a53834266c7256830c8d34672ea55fe17b
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Title:
Driver QMysql can't be loaded
I think this may be related:
$ readelf --dynamic libmysqlclient.so.21.1.19 | grep BIND
0x001e (FLAGS) BIND_NOW
$ readelf --dynamic libmysqlclient.so.21.1.21 | grep BIND
0x001e (FLAGS) BIND_NOW STATIC_TLS
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Thanks for the report and test case! I'll test it, and pass it on
upstream.
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Title:
Driver QMysql can't be loaded
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** Information type changed from Public to Public Security
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Title:
Driver QMysql can't be loaded
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Hi Olivier,
thanks for the report - I can confirm that this triggers the issue:
$ apt install python3-pyqt5 python3-pyqt5.qtsql libqt5sql5-mysql
$ cat > test.py << EOF
#!/usr/bin/python3
# -*- coding: utf-8 -*-
import sys
from PyQt5.QtWidgets import QApplication
from PyQt5.QtSql import
Sorry. I've just understood the difference between source package and
installed package name (I should use apt show more often...)
Completely minimal example:
#!/usr/bin/python3
# -*- coding: utf-8 -*-
import sys
from PyQt5.QtWidgets import QApplication
from PyQt5.QtSql import QSqlDatabase
** Package changed: ubuntu => mysql-8.0 (Ubuntu)
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Title:
Driver QMysql can't be loaded
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Thank you for taking the time to report this bug and helping to make
Ubuntu better. It seems that your bug report is not filed about a
specific source package though, rather it is just filed against Ubuntu
in general. It is important that bug reports be filed about source
packages so that people
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