I left my laptop on overnight. Usually it's very quiet, but I just noticed the fan was running loud. I checked with 'top' and saw that one of the CPU cores was pegged at 100% CPU. The xfce4-volumed process was responsible.
gdb shows me:
(gdb) where
#0 0xb78c5430 in __kernel_vsyscall ()
#1 0xb75e6ba6 in poll () from /lib/tls/i686/cmov/libc.so.6
#2 0xb783c53b in g_poll () from /lib/libglib-2.0.so.0
#3 0xb782f55b in ?? () from /lib/libglib-2.0.so.0
#4 0xb782fb8f in g_main_loop_run () from /lib/libglib-2.0.so.0
#5 0x08049fb2 in ?? ()
#6 0xb753eb56 in __libc_start_main () from /lib/tls/i686/cmov/libc.so.6
#7 0x08049c91 in ?? ()
and strace refused to attach:
chris@chris-laptop:~$ sudo strace -p 2541
[sudo] password for chris:
attach: ptrace(PTRACE_ATTACH, ...): Operation not permitted
so this is still a problem.
I often leave the machine idle, and have only seen this behaviour once before.
I left my laptop on overnight. Usually it's very quiet, but I just noticed the fan was running loud. I checked with 'top' and saw that one of the CPU cores was pegged at 100% CPU. The xfce4-volumed process was responsible.
gdb shows me:
(gdb) where i686/cmov/ libc.so. 6 2.0.so. 0 2.0.so. 0 2.0.so. 0 i686/cmov/ libc.so. 6
#0 0xb78c5430 in __kernel_vsyscall ()
#1 0xb75e6ba6 in poll () from /lib/tls/
#2 0xb783c53b in g_poll () from /lib/libglib-
#3 0xb782f55b in ?? () from /lib/libglib-
#4 0xb782fb8f in g_main_loop_run () from /lib/libglib-
#5 0x08049fb2 in ?? ()
#6 0xb753eb56 in __libc_start_main () from /lib/tls/
#7 0x08049c91 in ?? ()
and strace refused to attach:
chris@chris- laptop: ~$ sudo strace -p 2541 PTRACE_ ATTACH, ...): Operation not permitted
[sudo] password for chris:
attach: ptrace(
so this is still a problem.
I often leave the machine idle, and have only seen this behaviour once before.
This is on an up-to-date karmic box.