Bug 356845 – =x11-libs/qt-core-4.7* deletes TLS keys it didn't create

• Status: RESOLVED FIXED
• Product: Gentoo Linux

[Description Martin von Gagern 2011-02-28 11:33:32 UTC]

The Gentoo qt-core-4.7.1-r1 ebuild is affected by upstream bug 10861:
http://bugreports.qt.nokia.com/browse/QTBUG-10861
It calls destroy_current_thread_data_key on dso unload even if the corresponding create_current_thread_data_key wasn't executed before, causing the deletion of thread local data which doesn't belong to QT.

[Comment 1 Martin von Gagern 2011-02-28 11:35:52 UTC]

Created attachment 264159 [details, diff]
Backported 8c31c from upstream

Backported patch from upstream commit:
http://qt.gitorious.org/qt/qt/commit/8c31c6529935cd9ee6f99bc38cfd182d5b3182e2

To solve this issue before a revbumped qt-core ebuild arrives, simply drop the attached patch into /etc/portage/patches/x11-libs/qt-core-4.7.1-r1/ and remerge qt-core.

[Comment 2 Martin von Gagern 2011-03-01 09:47:40 UTC]

Created attachment 264235 [details, diff]
Backported 6cc3f from upstream

My previous patch seems to be bad (for reasons I don't understand). It makes qdbus segfault (which might prevent startup of a KDE session). Apparently upstream wasn't satisfied with it either, as they reverted it here:
http://qt.gitorious.org/qt/qt/commit/6cc3f97adfb541acfa7bffde6ca8b91fdc980854
That patch introduces a different solution, which is still present in current master. I've backported that instead (which makes for an easier patch as well).

[Comment 3 Martin von Gagern 2011-03-03 15:34:24 UTC]

Qt 4.7.2 doesn't contain the fix either, therefore needs the patch as well.

[Comment 4 Davide Pesavento (RETIRED) 2011-11-10 23:29:53 UTC]

This should be fixed in 4.8

[Comment 5 Davide Pesavento (RETIRED) 2012-03-12 18:49:24 UTC]

Fixed in 4.8.0