[Linux-cluster] Kernel panic: GFS: Assertion failed on line 550 offile rgrp.c

[Thai Duong]

Hi David,

There's no file in /var/crash. What am I supposed to do now? Please help.

Thai Duong.

On 2/10/06, David Gutierrez <davegu1 at hotmail.com> wrote:
>
> Check your /var/crash directory and it should have created a core file for
> you to debug, Let me know if you need help with it.
>
> The line 550 will tell you what the problem is from the file which was
> reading at the time of the crash.
>
> try to write to oracle_u02. Kernel panic: GFS: Assertion failed on line
> 550
> of file rgrp.c
>
> David
>
>
> From: Thai Duong <thaidn at gmail.com>
> Reply-To: linux clustering <linux-cluster at redhat.com>
> To: linux clustering <linux-cluster at redhat.com>
> Subject: [Linux-cluster] Kernel panic: GFS: Assertion failed on line 550
> offile rgrp.c
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>
> Hi all,
>
> My story is a little bit long so your patience is highly appreciated. I
> have
> a 4-node Oracle9iR2 RAC using GFS 6.0 as the cluster file system. Each
> node
> is running RHAS3 Update 6 for Itanium. We have 2 main pools: oracle_u01 to
> store the $ORACLE_HOME, and oracle_u02 to store the datafile, controlfile,
> redolog...Many thanks to the stabilization of GFS, this production cluster
> have been running pretty well. Two days ago, the manager wants to have a
> backup cluster with the same configuration except it consits of only one
> node. Due to the lack of 64-bit servers, we got a node from the production
> cluster out to make it become the 1-node backup cluster. We make new LUNs
> in
> our EMC CX500 SAN, and clone the production's oracle_u01 and oracle_u02 to
> them. We are able to mount these pools as GFS file system onto the backup
> cluster's node. So far so good until we try to write to oracle_u02. Kernel
> panic: GFS: Assertion failed on line 550 of file rgrp.c. It's pretty weird
> cauze writing to oracle_u01 just works. They are just the same pool device
> containing GFS file system, arent they? We even can not run df against
> u02!
> We can mount and explore it using commands like cd, ls, dir...but not df!
>
> There's no other message in /var/log/message, just the above error. If you
> need any other information, please drop me a line! Please help.
>
> Regards,
>
> --Thai Duong
>
>
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