Rsync --daemon v 2.5.5 v26 causing kernel panic
jw at pegasys.ws
Fri Jan 10 21:43:00 EST 2003
On Fri, Jan 10, 2003 at 02:25:57PM -0600, Edward King wrote:
> Has anyone seen this? Looking for past experiences / ideas. Will post
> I'm tracking down a problem that seems to be caused by rsync. When
> moving files from a remote server I get a kernel panic.
> We have a number of servers that back up to a main box -- the panic only
> occurs when a specific client backs up. It occurs on the box it is
> backing up to -- not the client.
> The kernel is Linux 2.4.20 (just compiled -- no patches), files are
> stored on a 4 disk raid (80GB Western Digital drives, software raid)
> with Reiserfs. This is being done over a vpn connection controlled by
> another machine (gateway machine) running tinc so we're not using ssh or
> any other shell on the rsync machine.
> I have:
> recompiled rsync at both locations
> recompiled the kernel from new source code (panic in 2.4.19, system
> rebooted in 2.4.20)
> I will:
> try different hardware
> run a file system check at the main system (the one that crashes)
> exclude directories in the backup (rsync one directory at a time -- see
> where it crashes)
> I did notice filenames on the client machine that contain control
> characters -- but they seem to have backed up before.
Just to confirm: You are doing backup-server initiated pull
something like "rsync server::module destdir" and the
machine you execute this on (the receiver) panics.
Rsync will of course not be the culprit. However, rsync is
very good at stressing a system and the kernel developers
have found it to be a common test case.
Most likely it is a hardware fault. Probably timing
sensitive. I'd check the logs for oopses and and disk
errors. Also try downgrading the mode with hdparm.
If this isn't a obvious hardware fault you should report it
to the linux-kernel people. Look on www.kernelnewbies.org
for instructions. This will be of interest to the
developers of md, reiserfs and the specific IDE driver.
J.W. Schultz Pegasystems Technologies
email address: jw at pegasys.ws
Remember Cernan and Schmitt
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