** Branch linked: lp:~ubuntu-desktop/empathy/ubuntu
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Title:
mission-control-5 crashed with SIGABRT in g_assertion_message()
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** Changed in: empathy
Status: New = Fix Released
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Title:
mission-control-5 crashed with SIGABRT in g_assertion_message()
To manage
This bug was fixed in the package empathy - 3.6.0-0ubuntu2
---
empathy (3.6.0-0ubuntu2) quantal-proposed; urgency=low
* debian/patches/50_uoa_no_crash_database.patch: Take patch from upstream
bug #685498 to not crash MC when the accounts database cannot be read,
commonly
** Bug watch added: GNOME Bug Tracker #685498
https://bugzilla.gnome.org/show_bug.cgi?id=685498
** Also affects: empathy via
https://bugzilla.gnome.org/show_bug.cgi?id=685498
Importance: Unknown
Status: Unknown
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** Changed in: empathy
Status: Unknown = New
** Changed in: empathy
Importance: Unknown = Medium
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Title:
mission-control-5 crashed
Yes, that's a good hint. Thanks!
Oct 4 11:56:30 raleigh kernel: [11256.440807] type=1400
audit(1349348190.236:43): apparmor=DENIED operation=open parent=32517
profile=/usr/lib/telepathy/mission-control-5
name=/srv/home/laney/.config/libaccounts-glib/accounts.db pid=32519
comm=mission-control
Yeah, seems like something is dereferencing my /home - /srv/home
symlink and passing this to apparmor, which denies it. If I add this to
HOMEDIRS in tunables then everything works.
We can see from my above strace that the open() call is using the path
in /home/ though. So I suspect the problem is
Sorry for the problems you are facing. I confirmed that the access was
due to a file in /srv/home/ AppArmor necessarily resolves symlinks
when making access decisions. As such, if your home directory is not in
HOMEDIRS then you will get these sorts of denials. Adjusting HOMEDIRS is
the correct
** Also affects: empathy (Ubuntu)
Importance: Undecided
Status: New
** Changed in: libaccounts-glib (Ubuntu)
Status: New = Invalid
** Changed in: telepathy-mission-control-5 (Ubuntu)
Status: Triaged = Invalid
** Changed in: empathy (Ubuntu)
Status: New = Triaged
** Tags added: running-unity
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Title:
mission-control-5 crashed with SIGABRT in g_assertion_message()
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Pasting my comments from the dupe.
Starting program: /usr/lib/telepathy/mission-control-5
[Thread debugging using libthread_db enabled]
Using host libthread_db library /lib/x86_64-linux-gnu/libthread_db.so.1.
(process:23949): accounts-glib-WARNING **: Error opening accounts DB:
unable to open
I'm providing a trace myself.
** Changed in: telepathy-mission-control-5 (Ubuntu)
Status: Invalid = Triaged
** Changed in: telepathy-mission-control-5 (Ubuntu)
Importance: Undecided = High
** Attachment added: gdb-tp-mc5.txt
(gdb) break empathy-webcredentials-monitor.c:91
Breakpoint 3 at 0x7ffbf800a059: file empathy-webcredentials-monitor.c, line 91.
(gdb) run
The program being debugged has been started already.
Start it from the beginning? (y or n) y
Starting program: /usr/lib/telepathy/mission-control-5
[Thread
(gdb) print ag_manager_new_for_service_type (IM)
(process:26835): accounts-glib-WARNING **: Error opening accounts DB:
unable to open database file
(process:26835): accounts-glib-CRITICAL **: ag_manager_new_for_service_type:
assertion `AG_IS_MANAGER (manager)' failed
$4 = 0
so it's because
I tracked this down to a failure to open the sqlite3 DB in libaccounts-
glib (ag-manager.c)
,
| ret = sqlite3_open (filename, priv-db);
| g_free (filename);
|
| if (ret != SQLITE_OK)
| {
| if (priv-db)
| {
| g_warning (Error opening accounts DB: %s,
|
Hmm, no, that was a red herring sadly. If I specify the file as a path
instead of a URI in my example then it always succeeds.
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Title:
OK I basically duplicated the first half of libaccounts-glib's open_db()
into my example and it still reliably works.
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Title:
mission-control-5
strace: open(/home/laney/.config/libaccounts-glib/accounts.db,
O_RDONLY|O_CLOEXEC) = -1 EACCES (Permission denied)
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Title:
mission-control-5
in my example; open(/home/laney/.config/libaccounts-glib/accounts.db,
O_RDWR|O_CREAT|O_CLOEXEC, 0644) = 3
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Title:
mission-control-5 crashed with
strace:
open(/home/laney/.config/libaccounts-glib/accounts.db,
O_RDWR|O_CREAT|O_CLOEXEC, 0644) = -1 EACCES (Permission denied)
open(/home/laney/.config/libaccounts-glib/accounts.db, O_RDONLY|O_CLOEXEC) =
-1 EACCES (Permission denied)
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Do you have any apparmor denials?
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Title:
mission-control-5 crashed with SIGABRT in g_assertion_message()
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Title:
mission-control-5 crashed with SIGABRT in g_assertion_message()
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