Bug#586259: Same bug seen often

Duncan Sands baldrick at free.fr
Tue Sep 27 16:11:46 UTC 2011


I'm seeing what seems to be the same bug, except that I get it maybe twice a
day.  This is with debian testing, gnome-screensaver package version 2.30.0-3.

Observations:

(1) When it occurs, there are two gnome-screensaver-dialog processes:

$ ps ax | grep gnome-screensaver
  2329 ?        Ss     0:01 gnome-screensaver
  4998 ?        Rl     0:20 /usr/lib/gnome-screensaver/gnome-screensaver-dialog 
--status-message= --enable-switch
  5006 ?        S      0:00 /usr/lib/gnome-screensaver/gnome-screensaver-dialog 
--status-message= --enable-switch
  5076 pts/7    S+     0:00 grep gnome-scree

The first gnome-screensaver-dialog process is using 100% of CPU.

(2) Backtrace from gnome-screensaver:

#0  0x00007fac6704d723 in *__GI___poll (fds=<optimized out>, nfds=<optimized 
out>, timeout=3996) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007fac67aa39e4 in ?? () from /lib/libglib-2.0.so.0
#2  0x00007fac67aa42f2 in g_main_loop_run () from /lib/libglib-2.0.so.0
#3  0x00007fac685aa2b7 in gtk_main () from /usr/lib/libgtk-x11-2.0.so.0
#4  0x000000000040bf03 in main ()

(3) Backtrace from first gnome-screensaver-dialog process:

#0  0x00007f1e2c844723 in *__GI___poll (fds=<optimized out>, nfds=<optimized 
out>, timeout=25339) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007f1e2cd5f9e4 in ?? () from /lib/libglib-2.0.so.0
#2  0x00007f1e2cd602f2 in g_main_loop_run () from /lib/libglib-2.0.so.0
#3  0x00007f1e2e4962b7 in gtk_main () from /usr/lib/libgtk-x11-2.0.so.0
#4  0x000000000040d205 in gs_auth_verify_user ()
#5  0x00000000004078c9 in ?? ()
#6  0x00007f1e2cd5f4a3 in g_main_context_dispatch () from /lib/libglib-2.0.so.0
#7  0x00007f1e2cd5fc80 in ?? () from /lib/libglib-2.0.so.0
#8  0x00007f1e2cd602f2 in g_main_loop_run () from /lib/libglib-2.0.so.0
#9  0x00007f1e2e4962b7 in gtk_main () from /usr/lib/libgtk-x11-2.0.so.0
#10 0x00000000004076ee in main ()

(4) Backtrace from second gnome-screensaver-dialog process:

#0  0x00007f1e2c8201cd in nanosleep () at ../sysdeps/unix/syscall-template.S:82
#1  0x00007f1e2c820040 in __sleep (seconds=<optimized out>) at 
../sysdeps/unix/sysv/linux/sleep.c:138
#2  0x00007f1e1fde3779 in ecryptfs_set_zombie_session_placeholder () from 
/usr/lib/libecryptfs.so.0
#3  0x00007f1e24108be8 in pam_sm_authenticate () from /lib/security/pam_ecryptfs.so
#4  0x00007f1e2d2240bd in ?? () from /lib/x86_64-linux-gnu/libpam.so.0
#5  0x00007f1e2d223948 in pam_authenticate () from /lib/x86_64-linux-gnu/libpam.so.0
#6  0x000000000040c8ba in ?? ()
#7  0x00007f1e2cd86cf6 in ?? () from /lib/libglib-2.0.so.0
#8  0x00007f1e2cb04b40 in start_thread (arg=<optimized out>) at pthread_create.c:304
#9  0x00007f1e2c84f36d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#10 0x0000000000000000 in ?? ()







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