[Bug 182491] New: Strange Kernel Errors (hungcheck timer) caused by KDE 4.2 apps
Alexander Schier
alexander_schier at yahoo.de
Fri Jan 30 20:54:24 GMT 2009
http://bugs.kde.org/show_bug.cgi?id=182491
Summary: Strange Kernel Errors (hungcheck timer) caused by KDE
4.2 apps
Product: kde
Version: unspecified
Platform: Debian testing
OS/Version: Linux
Status: UNCONFIRMED
Severity: crash
Priority: NOR
Component: general
AssignedTo: unassigned-bugs at kde.org
ReportedBy: alexander_schier at yahoo.de
Version: (using KDE 4.2.0)
OS: Linux
Installed from: Debian testing/unstable Packages
With KDE 4.2 on Debian lenny with experimental packages for KDE 4.2 i get
kernel errors (hungcheck timer) in plasma, dolphin, ksnapshot, krunner, etc. on
a regular basis. The Problem is, the hanging process cannot be killed (even
kill -9) and as it is still "running" i cannot restart it. so i need to reboot
to use the application again.
Kernellog:
[... many more than the last three ...]
[11169.063379] INFO: task lancelot:5644 blocked for more than 120 seconds.
[11169.063390] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this
message.
[11169.063396] lancelot D ffff81007432c810 0 5644 1
[11169.063405] ffff810074331b20 0000000000000082 ffffffff8024a85e
ffffffff8061f980
[11169.063415] ffff81007432c810 ffff810074c84810 ffff81007432ca98
00000001000021c5
[11169.063423] 000000001b85df5e ffff810074331b18 ffffffff80228f23
ffff810001021800
[11169.063431] Call Trace:
[11169.063469] [<ffffffff8024a85e>] ktime_get_ts+0x22/0x4b
[11169.063514] [<ffffffff80228f23>] hrtick_start_fair+0xfb/0x144
[11169.063571] [<ffffffff804229c7>] __mutex_lock_slowpath+0x64/0x9b
[11169.063615] [<ffffffff8042282c>] mutex_lock+0xa/0xb
[11169.063621] [<ffffffff802c9cb8>] inotify_poll+0x31/0x50
[11169.063644] [<ffffffff802ad186>] do_sys_poll+0x18c/0x323
[11169.063674] [<ffffffff802adcfe>] __pollwait+0x0/0xe1
[11169.063723] [<ffffffff8022a865>] __wake_up_sync+0x3a/0x56
[11169.063778] [<ffffffff803a9bf6>] skb_dequeue+0x50/0x58
[11169.063801] [<ffffffff8040e6fb>] unix_stream_recvmsg+0x43d/0x4ec
[11169.065695] [<ffffffff803a3be6>] sock_aio_read+0xdd/0xec
[11169.065804] [<ffffffff802a0b8b>] do_sync_read+0xc9/0x10c
[11169.065880] [<ffffffff80247be5>] autoremove_wake_function+0x0/0x2e
[11169.066041] [<ffffffff802ad352>] sys_poll+0x35/0x81
[11169.066074] [<ffffffff8020bffa>] system_call_after_swapgs+0x8a/0x8f
[11169.066153]
[11169.066161] INFO: task krunner:5675 blocked for more than 120 seconds.
[11169.066166] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this
message.
[11169.066171] krunner D ffff81007a963050 0 5675 1
[11169.066178] ffff8100600fbc60 0000000000000086 ffff8100600fbc28
ffffffff8022b2a7
[11169.066187] ffff81007a963050 ffff810077ce77d0 ffff81007a9632d8
00000000602b1dc0
[11169.066195] ffff810000000000 00000000000004ca 00000000ffffffff
0000000000000000
[11169.066202] Call Trace:
[11169.066224] [<ffffffff8022b2a7>] default_wake_function+0x0/0xe
[11169.066311] [<ffffffff804229c7>] __mutex_lock_slowpath+0x64/0x9b
[11169.066354] [<ffffffff8042282c>] mutex_lock+0xa/0xb
[11169.066360] [<ffffffff802a7e26>] do_lookup+0xa3/0x1dd
[11169.066413] [<ffffffff802a9fa3>] __link_path_walk+0x948/0xddd
[11169.066572] [<ffffffff802aa47e>] path_walk+0x46/0x8b
[11169.066617] [<ffffffff802aa7aa>] do_path_lookup+0x158/0x1d0
[11169.066628] [<ffffffff802a94c2>] getname+0xb5/0x11c
[11169.066660] [<ffffffff802ab11a>] __user_walk_fd+0x37/0x4c
[11169.066692] [<ffffffff802a40bd>] vfs_stat_fd+0x1b/0x4a
[11169.066746] [<ffffffff802c9e3e>] inotify_read+0x167/0x197
[11169.066773] [<ffffffff80247be5>] autoremove_wake_function+0x0/0x2e
[11169.066811] [<ffffffff802a4148>] sys_newstat+0x19/0x31
[11169.066833] [<ffffffff802a13cf>] vfs_read+0x11e/0x152
[11169.066866] [<ffffffff802a17ac>] sys_read+0x64/0xc2
[11169.066909] [<ffffffff8020bffa>] system_call_after_swapgs+0x8a/0x8f
[11169.066988]
[11169.067000] INFO: task kmail:8073 blocked for more than 120 seconds.
[11169.067004] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this
message.
[11169.067009] kmail D ffff81007a3157d0 0 8073 1
[11169.067016] ffff810041d43cc0 0000000000000086 ffffffffa0184952
ffff810000000001
[11169.067025] ffff81007a3157d0 ffff81007a963050 ffff81007a315a58
0000000000000001
[11169.067033] ffffffff80247b0f 0000000000001000 0000000000000002
0000000000000000
[11169.067040] Call Trace:
[11169.067076] [<ffffffffa0184952>] :ext3:ext3_getblk+0xa8/0x188
[11169.067109] [<ffffffff80247b0f>] bit_waitqueue+0x10/0x97
[11169.067130] [<ffffffff80247bd4>] wake_up_bit+0x11/0x22
[11169.067169] [<ffffffff804229c7>] __mutex_lock_slowpath+0x64/0x9b
[11169.067212] [<ffffffff8042282c>] mutex_lock+0xa/0xb
[11169.067218] [<ffffffff802c9195>] inotify_inode_is_dead+0x20/0x83
[11169.067261] [<ffffffff802b06c8>] dentry_iput+0x60/0x9d
[11169.067283] [<ffffffff802b079f>] d_kill+0x38/0x59
[11169.067304] [<ffffffff802b198c>] dput+0x119/0x14f
[11169.067326] [<ffffffff802a7ab7>] path_put+0xd/0x27
[11169.067336] [<ffffffff802c9392>] put_inotify_watch+0x2a/0x66
[11169.067358] [<ffffffff802c9b11>] inotify_dev_queue_event+0x45/0x12b
[11169.067403] [<ffffffff802c91c4>] inotify_inode_is_dead+0x4f/0x83
[11169.067446] [<ffffffff802b06c8>] dentry_iput+0x60/0x9d
[11169.067468] [<ffffffff802b2c83>] d_delete+0x49/0xb2
[11169.067489] [<ffffffff802a8ffd>] vfs_unlink+0xc9/0xef
[11169.067511] [<ffffffff802aabfa>] do_unlinkat+0xbb/0x160
[11169.067566] [<ffffffff80311a37>] __up_write+0x21/0x10e
[11169.067642] [<ffffffff8020bffa>] system_call_after_swapgs+0x8a/0x8f
[11169.067721]
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