Looking at the sources of accountsservice 0.6.21-6ubuntu5: there's only
one place where on_get_unix_user_finished invokes
g_cancellable_is_cancelled, and it's introduced by
debian/patches/9001-manage_pending_ck_calls_with_cancellable.patch:
if (new_session->cancellable == NULL || g_cancellable_is_cancelled
(new_session->cancellable)) {
return;
}
It appears that there's a race: new_session->cancellable is reset to
NULL between the check and the g_cancellable_is_cancelled call.
That patch mentions https://bugs.freedesktop.org/show_bug.cgi?id=50112
and http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=673185.
** Bug watch added: freedesktop.org Bugzilla #50112
https://bugs.freedesktop.org/show_bug.cgi?id=50112
** Bug watch added: Debian Bug tracker #673185
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=673185
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https://bugs.launchpad.net/bugs/1028149
Title:
gnome-shell crashed with SIGSEGV in g_cancellable_is_cancelled()
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