[ale] Ugh! Kernel panic when loading ext3 modules in RHAS2.1 w/kernel 2.4.9-e30.smp

[Jonathan Glass]

On Mon, 2003-12-29 at 16:42, Dow Hurst wrote:
> That is definitely not HA, for sure.  You'll have to roll back, I 
> guess?  Have you tried using Reisferfs or XFS?  Just curious,
> Dow
> 
> 
> Jonathan Glass wrote:
> 222
> >Great!  I updated my HA-cluster master-node to the latest kernel
> >(2.4.9-e30.smp) available from RHN, and as soon as it mounts the ext3
> >file systems, it kernel panics.  This is all the error message I have.
> >
> >Message from syslogd at biolab2 at Mon Dec 29 15:20:52 2003 ...
> >biolab2 kernel: Assertion failure in unmap_underlying_metadata() at
> >buffer.c:1542: "!buffer_jlist_eq(old_bh, 3)"
> >
> >Sometimes I hate servers!
> >
> >Jonathan Glass

It appears that the slave node went down ungracefully, and locked up the
shared SCSI storage.  When the master node came back online, and tried
to start the "cluster" service, it couldn't get full access to the
partition b/c the slave's RAID card had control.  I killed the slave
machine, rebooted the master, and everything cleared up.  Weird.

I was afraid it was related to my trying to configure NFS & NIS to use
ports 5000-5004, but I don't think so now.  Time to dig through the log
files to see when this happened, and why.

Thanks for the tips.
-- 
Jonathan Glass
Systems Support Specialist II
Institute for Bioengineering & Bioscience
Georgia Institute of Technology
Email: jonathan.glass at ibb.gatech.edu
Office: 404-385-0127
Fax: 404-894-2291