Re: kupdated, bdflush and kjournald stuck in D state on RAID1 device

[Andrew Morton]

David Rees wrote:
> 
> ...
> USER       PID %CPU %MEM   VSZ  RSS TTY      STAT START   TIME COMMAND
> root         1  0.0  0.0  1368   72 ?        S    Aug27   0:05 init [3]
> root         2  0.0  0.0     0    0 ?        SW   Aug27   0:00 [keventd]
> root         3  0.0  0.0     0    0 ?        SWN  Aug27   0:00 [ksoftirqd_CPU0]
> root         4  0.0  0.0     0    0 ?        SW   Aug27   0:03 [kswapd]
> root         5  0.0  0.0     0    0 ?        SW   Aug27   0:00 [kreclaimd]
> root         6  0.0  0.0     0    0 ?        DW   Aug27   0:00 [bdflush]
> root         7  0.0  0.0     0    0 ?        DW   Aug27   0:00 [kupdated]
> root         9  0.0  0.0     0    0 ?        SW<  Aug27   0:00 [mdrecoveryd]
> root        10  0.0  0.0     0    0 ?        SW<  Aug27   0:00 [raid1d]
> root        11  0.0  0.0     0    0 ?        SW   Aug27   0:02 [kjournald]
> root       130  0.0  0.0     0    0 ?        SW   Aug27   0:00 [kjournald]
> root       131  0.0  0.0     0    0 ?        DW   Aug27   0:01 [kjournald]
> root       374  0.0  0.0  1428  176 ?        S    Aug27   0:00 syslogd -m 0
> root       379  0.0  0.0  1984  396 ?        S    Aug27   0:00 klogd -2
> [sybase@zorro ~]$
> 
> As you can see, bdflush, kupdated and kjournald appear to be deadlocked.
> 

Certainly seems that way.

Can you please send the output of

	ps xwo pid,command,wchan

Also, try a SYSRQ-T and, if the result makes it into the
logs, please pass it through `ksymoops -m System.map'.

Thanks.

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