Public bug reported:
I use 10.10. The symptoms are that the gnome-panel is unresponsive and
cannot be killed, replaced or restarted. The only solution is to reboot.
I hit this about once per week.
kern.log:
...
Mar 17 10:17:03 cslaptop kernel: [691172.039998] INFO: task gnome-panel:1663
blocked for more than 120 seconds.
Mar 17 10:17:03 cslaptop kernel: [691172.040004] "echo 0 >
/proc/sys/kernel/hung_task_timeout_secs" disables this message.
Mar 17 10:17:03 cslaptop kernel: [691172.040008] gnome-panel D
ffff8800a0f9b800 0 1663 1482 0x00000004
Mar 17 10:17:03 cslaptop kernel: [691172.040015] ffff880105d71af8
0000000000000086 ffff880105d71a88 0000000000015980
Mar 17 10:17:03 cslaptop kernel: [691172.040022] ffff880105d71fd8
0000000000015980 ffff880105d71fd8 ffff880105c7adc0
Mar 17 10:17:03 cslaptop kernel: [691172.040028] 0000000000015980
0000000000015980 ffff880105d71fd8 0000000000015980
Mar 17 10:17:03 cslaptop kernel: [691172.040033] Call Trace:
Mar 17 10:17:03 cslaptop kernel: [691172.040045] [<ffffffff8107fd60>] ?
prepare_to_wait+0x60/0x90
Mar 17 10:17:03 cslaptop kernel: [691172.040053] [<ffffffff812428a5>]
request_wait_answer+0x85/0x240
Mar 17 10:17:03 cslaptop kernel: [691172.040059] [<ffffffff8107fab0>] ?
autoremove_wake_function+0x0/0x40
Mar 17 10:17:03 cslaptop kernel: [691172.040064] [<ffffffff81242adc>]
fuse_request_send+0x7c/0x90
Mar 17 10:17:03 cslaptop kernel: [691172.040070] [<ffffffff81244b19>]
fuse_dentry_revalidate+0x179/0x2b0
Mar 17 10:17:03 cslaptop kernel: [691172.040076] [<ffffffff8115f6d4>]
do_lookup+0x84/0x280
Mar 17 10:17:03 cslaptop kernel: [691172.040081] [<ffffffff8116051d>]
link_path_walk+0x4cd/0xab0
Mar 17 10:17:03 cslaptop kernel: [691172.040086] [<ffffffff81160c67>]
path_walk+0x67/0xe0
Mar 17 10:17:03 cslaptop kernel: [691172.040090] [<ffffffff81160e3b>]
do_path_lookup+0x5b/0xa0
Mar 17 10:17:03 cslaptop kernel: [691172.040095] [<ffffffff81161b07>]
user_path_at+0x57/0xa0
Mar 17 10:17:03 cslaptop kernel: [691172.040102] [<ffffffff81157a1c>]
vfs_fstatat+0x3c/0x80
Mar 17 10:17:03 cslaptop kernel: [691172.040107] [<ffffffff81154c89>] ?
__fput+0x199/0x210
Mar 17 10:17:03 cslaptop kernel: [691172.040112] [<ffffffff81157ace>]
vfs_lstat+0x1e/0x20
Mar 17 10:17:03 cslaptop kernel: [691172.040117] [<ffffffff81157af4>]
sys_newlstat+0x24/0x50
Mar 17 10:17:03 cslaptop kernel: [691172.040125] [<ffffffff8158ef6e>] ?
do_page_fault+0x15e/0x350
Mar 17 10:17:03 cslaptop kernel: [691172.040130] [<ffffffff8158bab5>] ?
page_fault+0x25/0x30
Mar 17 10:17:03 cslaptop kernel: [691172.040138] [<ffffffff8100a0f2>]
system_call_fastpath+0x16/0x1b
...
top (note the D state):
...
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
1663 vries 20 0 341m 9132 5244 D 0 0.2 0:56.18 gnome-panel
1664 vries 20 0 572m 22m 14m D 0 0.6 0:15.18 nautilus
...
ProblemType: Bug
DistroRelease: Ubuntu 10.10
Package: gnome-panel 1:2.30.2-1ubuntu3
ProcVersionSignature: Ubuntu 2.6.35-27.48-generic 2.6.35.11
Uname: Linux 2.6.35-27-generic x86_64
Architecture: amd64
Date: Thu Mar 17 10:43:16 2011
GConfNonDefault:
/apps/panel/general/applet_id_list=[clock_screen0,notification_area_screen0,indicator_applet_screen0,show_desktop_button_screen0,window_list_screen0,workspace_switcher_screen0,fast_user_switch_screen0]
/apps/panel/general/object_id_list=[object_6,object_4,object_3,object_2,object_1,object_0,menu_bar_screen0,browser_launcher_screen0,object_5,object_9,object_8,object_7,object_10,object_11]
/apps/panel/general/toplevel_id_list=[bottom_panel_screen0,top_panel_screen0]
InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Release amd64 (20101007)
ProcEnviron:
PATH=(custom, user)
LANG=en_US.UTF-8
SHELL=/bin/bash
SourcePackage: gnome-panel
** Affects: ubuntu
Importance: Undecided
Status: New
** Tags: amd64 apport-bug maverick
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https://bugs.launchpad.net/bugs/736730
Title:
gnome-panel in uninterruptible sleep after system call
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