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SubjectRe: PROBLEM: 2.6.11-rc2 hangs on bridge shutdown (br0)
Mirko Parthey wrote:

>On Mon, Jan 31, 2005 at 05:22:02PM +0100, wrote:
>
>
>>My Debian machine hangs during shutdown, with messages like this:
>>unregister_netdevice: waiting for br0 to become free. Usage count = 1
>>
>>I narrowed it down to the command
>> # brctl delbr br0
>>which does not return in the circumstances shown below.
>>
>>The problem is reproducible with both 2.6.11-rc2 from kernel.org and the
>>Debian kernel-image-2.6.10-1-686.
>>[...]
>>
>>
>
>The problem was introduced between 2.6.8.1 and 2.6.9,
>and it is still present in 2.6.11-rc2-bk9.
>
>Mirko
>-
>To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
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>
>
>
Jep it appears in 2.6.8 and above. I don't know the process who's using it:

Before shutdown:
PID TTY TIME CMD
1 ? 00:00:00 init
2 ? 00:00:00 ksoftirqd/0
3 ? 00:00:00 events/0
4 ? 00:00:00 khelper
9 ? 00:00:00 kthread
19 ? 00:00:00 kacpid
17 ? 00:00:00 vesafb
100 ? 00:00:00 kblockd/0
164 ? 00:00:00 pdflush
165 ? 00:00:00 pdflush
166 ? 00:00:00 kswapd0
167 ? 00:00:00 aio/0
168 ? 00:00:00 jfsIO
169 ? 00:00:00 jfsCommit
170 ? 00:00:00 jfsSync
171 ? 00:00:00 xfslogd/0
172 ? 00:00:00 xfsdatad/0
173 ? 00:00:00 xfsbufd
774 ? 00:00:00 kseriod
862 ? 00:00:00 ata/0
882 ? 00:00:00 kcryptd/0
883 ? 00:00:00 kmirrord/0
887 ? 00:00:00 xfssyncd
939 ? 00:00:00 udevd
1061 ? 00:00:00 devfsd
1242 ? 00:00:00 khubd
1616 ? 00:00:00 syslog-ng
2562 ? 00:00:00 khpsbpkt
2646 ? 00:00:00 knodemgrd_0
3987 ? 00:00:00 crond
4027 tty2 00:00:00 agetty
4028 tty3 00:00:00 agetty
4029 tty4 00:00:00 agetty
4030 tty5 00:00:00 agetty
4031 tty6 00:00:00 agetty
4473 tty1 00:00:00 bash
4553 tty1 00:00:00 ps

And my System can't shutdown because of this bug. Currently disabling
this checking function seems to be the only solution (see my diff).

Matthias-Christian Ott
-
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