Re: [OT] RAM disk (tmpfs) locking up

Julian Foad wrote:

> When running the tests on a RAM disk (tmpfs) the process accessing the
> RAM disk sometimes locks up and no "kill" signal can kill it. This is
> not specific to Subversion; I assume it is a bug in the shmfs driver. I
> particularly noticed that deltes like "rm -rf /tmp/ramdisk/svn-check/"
> often trigger a seg fault and/or lock-up. I tried sending it, as root,
> all the signals numbered from 1 to 31, and still the "rm" process
> remains in the process list, in the state "D" or "Z". The same for a
> "lt-svn" process which hung.
>
> A while back I searched on Google and found one or two reports of this
> sort of problem but no useful answer.
>
> Any ideas?

I recommand that you either send a bug report to Suse, or run a vanilla
kernel and report the bug (if it still exists) to the Linux kernel
mailing list (lkml).

> As a work-around, is there any more forceful way to kill a process than
> "for i in `seq 1 31`; do kill -n $i PID; done" ? When that doesn't work
> I resort to re-booting.

Nope. But kill -9 is as powerful as it gets, so you don't really need
to try the other ones.

/Tobias

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Received on Thu Mar 18 00:53:30 2004