Bug 435427 - akonadi_imap_resource: segfault on authentication
Summary: akonadi_imap_resource: segfault on authentication
Alias: None
Product: Akonadi
Classification: Frameworks and Libraries
Component: IMAP resource (show other bugs)
Version: unspecified
Platform: Fedora RPMs Linux
: NOR crash with 1 vote (vote)
Target Milestone: ---
Assignee: kdepim bugs
Keywords: drkonqi
Depends on:
Reported: 2021-04-06 14:45 UTC by Victor Mataré
Modified: 2021-04-26 22:40 UTC (History)
1 user (show)

See Also:
Latest Commit:
Version Fixed In:

New crash information added by DrKonqi (2.76 KB, text/plain)
2021-04-09 17:57 UTC, Thiago Jung Bauermann

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Description Victor Mataré 2021-04-06 14:45:46 UTC
Application: akonadi_imap_resource (5.15.3 (20.08.3))

Qt Version: 5.15.2
Frameworks Version: 5.79.0
Operating System: Linux 5.11.11-200.fc33.x86_64 x86_64
Windowing system: X11
Distribution: "Fedora release 33 (Thirty Three)"

-- Information about the crash:
The resource was working fine before and then it suddenly started crashing. Nothing really changed except that a few new emails came in. The server is a Microsoft 365 Exchange mailbox. I'll try to sort through the new emails, maybe I can identify the culprit.

The crash can be reproduced every time.

-- Backtrace:
Application: support (akonadi_imap_resource), signal: Segmentation fault

[KCrash Handler]
#4  ImapAccount::authenticationMode (this=0x0) at /usr/src/debug/kdepim-runtime-20.08.3-1.fc33.x86_64/resources/imap/imapaccount.cpp:85
#5  0x0000560dd7904a8a in SessionPool::requestPassword (this=0x560dd8f979d0) at /usr/src/debug/kdepim-runtime-20.08.3-1.fc33.x86_64/resources/imap/sessionpool.cpp:88
#6  0x00007fc12f6a0d1e in QObject::event(QEvent*) () from /lib64/libQt5Core.so.5
#7  0x00007fc1302a6ec3 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /lib64/libQt5Widgets.so.5
#8  0x00007fc12f678bd8 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /lib64/libQt5Core.so.5
#9  0x00007fc12f67b8c7 in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /lib64/libQt5Core.so.5
#10 0x00007fc12f6c5c27 in postEventSourceDispatch(_GSource*, int (*)(void*), void*) () from /lib64/libQt5Core.so.5
#11 0x00007fc12d870a9f in g_main_context_dispatch () from /lib64/libglib-2.0.so.0
#12 0x00007fc12d8c2a98 in g_main_context_iterate.constprop () from /lib64/libglib-2.0.so.0
#13 0x00007fc12d86de73 in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#14 0x00007fc12f6c56f3 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#15 0x00007fc12f67757b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#16 0x00007fc12f67f1b4 in QCoreApplication::exec() () from /lib64/libQt5Core.so.5
#17 0x0000560dd78b5157 in Akonadi::ResourceBase::init<ImapResource> (argc=<optimized out>, argv=0x7ffdffff99d0) at /usr/include/KF5/AkonadiAgentBase/resourcebase.h:186
#18 0x00007fc12f0511e2 in __libc_start_main () from /lib64/libc.so.6
#19 0x0000560dd78b306e in _start ()
[Inferior 1 (process 80660) detached]

Possible duplicates by query: bug 435332, bug 434873, bug 434725, bug 434294, bug 434282.

Reported using DrKonqi
Comment 1 Thiago Jung Bauermann 2021-04-09 17:57:51 UTC
Created attachment 137453 [details]
New crash information added by DrKonqi

akonadi_kolab_resource (5.15.1 (20.08.1)) using Qt 5.14.2

- What I was doing when the application crashed:

I wasn't doing anything related to KMail or Akonadi. This just happens by itself (during periodic mail check, I would assume).
It has happened a couple of times. This last time the machine was idle for a while and it went to sleep. When I came back to it, there was this crash. On the first time, I don't remember if it was a similar situation.

-- Backtrace (Reduced):
#4  ImapAccount::authenticationMode() const (this=0x0) at ./resources/imap/imapaccount.cpp:85
#5  0x000056006d9402fa in SessionPool::requestPassword() (this=0x56006f0f0600) at ./resources/imap/sessionpool.cpp:88
#6  0x00007f4edb561651 in QObject::event(QEvent*) () at /lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f4edc4e1013 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /lib/x86_64-linux-gnu/libQt5Widgets.so.5
#8  0x00007f4edb5351ca in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /lib/x86_64-linux-gnu/libQt5Core.so.5
Comment 2 Victor Mataré 2021-04-10 18:42:35 UTC
This has become an intermittently recurring problem now for one particular account I have. It's not linked to anything visibly happening on the server, i.e. it's not triggered by particular emails. It'll simply start at some (apparently random) point, then the resource will go into a crash loop (sometimes for hours) and after a while it will start working again (again for no apparent reason).

Strangely, another account I have with the exact same settings on the same server is working fine.
Comment 3 Thiago Jung Bauermann 2021-04-26 22:40:57 UTC
This crash just happened again, with the exact same backtrace. The last time it happened was when I added my previous comment to this bug.

Again, the machine was idle for a long while (about 1h30m), but it didn't go to sleep this time. The common factor seems to be the machine being idle for a while. Perhaps there's a bug when periodic mail check is triggered while the screensaver is active?