With Linux 2.6.24-rc8 I often have the problem that the pan usenet
reader starts using 100% of CPU time after some time. When this happens,
kill -9 does not work, and strace just hangs when trying to attach to
the process. The same with gdb. ps shows the process as being in the R
state.
I pressed Ctrl-Alt-SysRq-T, and this was shown for pan:
Jan 21 21:45:01 Anastacia kernel: pan R running task 0 8063
1
Jan 21 21:45:01 Anastacia kernel: ssh S 0000000000000000 0 8323
6809
Jan 21 21:45:01 Anastacia kernel: ffff81000a51f9c8 0000000000000082
ffff81000ed6dc00 ffffffff8045ad6f
Jan 21 21:45:01 Anastacia kernel: ffffffff805875b8 ffffffff80623980
ffffffff80623980 ffffffff80623980
Jan 21 21:45:01 Anastacia kernel: ffffffff8061fe80 ffffffff80623980
ffff81003941b8a8 ffffffff8043142b
Jan 21 21:45:01 Anastacia kernel: Call Trace:
Jan 21 21:45:01 Anastacia kernel: [arp_bind_neighbour+143/208]
arp_bind_neighbour+0x8f/0xd0
Jan 21 21:45:01 Anastacia kernel: [rt_intern_hash+955/1056]
rt_intern_hash+0x3bb/0x420
Jan 21 21:45:01 Anastacia kernel: [nommu_map_single+56/96]
nommu_map_single+0x38/0x60
Jan 21 21:45:01 Anastacia kernel: [schedule_timeout+149/208]
schedule_timeout+0x95/0xd0
Jan 21 21:45:01 Anastacia kernel: [tty_ldisc_deref+82/128]
tty_ldisc_deref+0x52/0x80
Jan 21 21:45:01 Anastacia kernel: [tty_poll+145/160] tty_poll+0x91/0xa0
Jan 21 21:45:01 Anastacia kernel: [do_select+1128/1376] do_select+0x468/0x560
Jan 21 21:45:01 Anastacia kernel: [__pollwait+0/304] __pollwait+0x0/0x130
Jan 21 21:45:01 Anastacia kernel: [default_wake_function+0/16]
default_wake_function+0x0/0x10
Jan 21 21:45:01 Anastacia kernel:last message repeated 2 times
Jan 21 21:45:01 Anastacia kernel: [enqueue_task+19/48] enqueue_task+0x13/0x30
Jan 21 21:45:01 Anastacia kernel: [try_to_wake_up+98/720]
try_to_wake_up+0x62/0x2d0
Jan 21 21:45:01 Anastacia kernel: [default_wake_function+0/16]
default_wake_function+0x0/0x10
Jan 21 21:45:01 Anastacia kernel: [tcp_recvmsg+1463/3360]
tcp_recvmsg+0x5b7/0xd20
Jan 21 21:45:01 Anastacia kernel: [__wake_up_common+90/144]
__wake_up_common+0x5a/0x90
Jan 21 21:45:01 Anastacia kernel: [__wake_up+67/112] __wake_up+0x43/0x70
Jan 21 21:45:01 Anastacia kernel: [n_tty_receive_buf+821/3888]
n_tty_receive_buf+0x335/0xf30
Jan 21 21:45:01 Anastacia kernel: [sock_aio_read+349/368]
sock_aio_read+0x15d/0x170
Jan 21 21:45:01 Anastacia kernel: [core_sys_select+521/768]
core_sys_select+0x209/0x300
Jan 21 21:45:01 Anastacia kernel: [remove_wait_queue+25/96]
remove_wait_queue+0x19/0x60
Jan 21 21:45:01 Anastacia kernel: [__wake_up+67/112] __wake_up+0x43/0x70
Jan 21 21:45:01 Anastacia kernel: [tty_ldisc_deref+82/128]
tty_ldisc_deref+0x52/0x80
Jan 21 21:45:01 Anastacia kernel: [tty_write+569/592] tty_write+0x239/0x250
Jan 21 21:45:01 Anastacia kernel: [sys_select+68/448] sys_select+0x44/0x1c0
Jan 21 21:45:01 Anastacia kernel: [sys_write+83/144] sys_write+0x53/0x90
Jan 21 21:45:01 Anastacia kernel: [system_call+126/131] system_call+0x7e/0x83
What could be causing this problem?
--
Frederik Himpe <[EMAIL PROTECTED]>
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [EMAIL PROTECTED]
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
