xfce4-power-manager crashed with SIGSEGV in vfprintf()

Thank you for taking the time to report this crash and helping to make this software better. This particular crash has already been reported and is a duplicate of bug #1037455, so is being marked as such. Please look at the other bug report to see if there is any missing information that you can provide, or to see if there is a workaround for the bug. Additionally, any further discussion regarding the bug should occur in the other report. Please continue to report any other bugs you may find.

This is marked duplicate of an apparently nonexistent bug. Is this a bug in the bug tracker?

Yes: it's marked duplicate of a private bug, and since you don't have enough permissions to view it, launchpad will say that the bug doesn't exist...

Status changed to 'Confirmed' because the bug affects multiple users.

same crash here.

If i switch off "Show notifications to notify about the battery state" in xfce4-power-manager-settings then power-manager doesnt crash.

De-duping this so that there exists a public post people can actually comment on.

This bug still exists in the release 12.10. Happens every time the power is plugged in or unplugged.

#0 0x00007f71f81fb3b1 in vfprintf () from /lib/x86_64-linux-gnu/libc.so.6
(gdb) bt
#0 0x00007f71f81fb3b1 in vfprintf () from /lib/x86_64-linux-gnu/libc.so.6
#1 0x00007f71f82ba1d1 in __vasprintf_chk ()
   from /lib/x86_64-linux-gnu/libc.so.6
#2 0x00007f71f926343b in g_vasprintf ()
   from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3 0x00007f71f924312d in g_strdup_vprintf ()
   from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4 0x00007f71f92431cc in g_strdup_printf ()
   from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5 0x00007f71fb4037d0 in xfpm_battery_get_message_from_battery_state (
    battery=0x7f71fd4e8000) at xfpm-battery.c:244
#6 xfpm_battery_notify (battery=0x7f71fd4e8000) at xfpm-battery.c:345
#7 0x00007f71fb403eaf in xfpm_battery_notify_idle (data=<optimised out>)
    at xfpm-battery.c:367
#8 0x00007f71f9226ab5 in g_main_context_dispatch ()
   from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#9 0x00007f71f9226de8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#10 0x00007f71f92271e2 in g_main_loop_run ()
   from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#11 0x00007f71faab6c77 in gtk_main ()
   from /usr/lib/x86_64-linux-gnu/libgtk-x11-2.0.so.0
#12 0x00007f71fb3fd8da in xfpm_start (bus=bus@entry=0x7f71fd4bed28,
    client_id=0x0, dump=<optimised out>) at xfpm-main.c:238
---Type <return> to continue, or q <return> to quit---
#13 0x00007f71fb3fdeeb in main (argc=1, argv=0x7fffe27cf628) at xfpm-main.c:426

(gdb) frame 5
#5 0x00007f71fb4037d0 in xfpm_battery_get_message_from_battery_state (
    battery=0x7f71fd4e8000) at xfpm-battery.c:244
244 msg = g_strdup_printf (_("%s (%i%%)\nEstimated time left is %s."), tmp, battery->priv->percentage, est_time_str);
(gdb) p tmp
$1 = <optimised out>
(gdb) p battery->priv->percentage
$2 = 77
(gdb) p est_time_str
$3 = <optimised out>

looking further, this _seems_ to be the culprit:
(gdb) print battery->priv->battery_name
$6 = (const gchar *) 0x7f71fb3ee94c <Address 0x7f71fb3ee94c out of bounds>

which is set on line 878.. looking into this a bit more, running it under gdb:
(gdb) print battery->priv->battery_name
$2 = (const gchar *) 0x7ffff7ff894c "battery"
so now I don't know...

> LANG=en_GB.UTF-8

Are you all using this locale?

I'm using that locale, yes.

$ msgfmt -c po/en_GB.po
po/en_GB.po:550: number of format specifications in 'msgid' and 'msgstr' does not match
po/en_GB.po:570: number of format specifications in 'msgid' and 'msgstr' does not match

The translation is buggy (the format strings in the original and the translated strings don't match). I had already fixed/reported a bunch of these in the past (Bug #975880), but it seems new ones were introduced for 1.2.0.

Excellent! Any hope of getting those strings fixed for 12.04 and/or 12.10?

For 12.04 it's ok, they should be already fixed in 1.0.11-0ubuntu2. For 12.10, I'll prepare a Stable Release Update (in the next few days).

yes, i am also using that locale.

Added test case, feel free to improve it (the upload to -proposed hasn't occurred yet, so obviously the second part can't be followed yet ;-).

Hello David, or anyone else affected,

Accepted xfce4-power-manager into quantal-proposed. The package will build now and be available at http://launchpad.net/ubuntu/+source/xfce4-power-manager/1.2.0-1ubuntu1.1 in a few hours, and then in the -proposed repository.

Please help us by testing this new package. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Your feedback will aid us getting this update out to other Ubuntu users.

If this package fixes the bug for you, please change the bug tag from verification-needed to verification-done. If it does not, change the tag to verification-failed. In either case, details of your testing will help us make a better decision.

Further information regarding the verification process can be found at https://wiki.ubuntu.com/QATeam/PerformingSRUVerification . Thank you in advance!

Appears fixed \o/ Thank you, Lionel! Anyone else?

Uploaded to raring as well (with a great revision number).

The verification of this Stable Release Update has completed successfully and the package has now been released to -updates. Subsequently, the Ubuntu Stable Release Updates Team is being unsubscribed and will not receive messages about this bug report. In the event that you encounter a regression using the package from -updates please report a new bug using ubuntu-bug and tag the bug report regression-update so we can easily find any regresssions.

This bug was fixed in the package xfce4-power-manager - 1.2.0-1ubuntu1.1

---------------
xfce4-power-manager (1.2.0-1ubuntu1.1) quantal-proposed; urgency=low

  * debian/patches:
    - 02_translations-fix-invalid-format-strings.patch: updated to fix
      crashes because of en_GB.po and tr.po. lp: #1054907
 -- Lionel Le Folgoc <email address hidden> Mon, 22 Oct 2012 20:00:24 +0200