Re: [SSI-devel] 1.9.x and gfs

[Brian J. W. <Bri...@hp...>]

Hi Rudi,

Have you been able to make any progress on this?

If you're still stuck, I suggest taking a step back and trying to mount 
a non-root GFS partition on a OpenSSI cluster. That would indicate 
whether this is a problem with GFS itself, or if it's a problem with 
mounting GFS as a root filesystem during boot.

Something to keep in mind is that you should directly mount a GFS 
partition on every node, rather than mounting it one one node and using 
CFS to mount it on other nodes (like you do with ordinary filesystems 
such as ext3). It is not necessary (and potentially broken) to use CFS 
with a cluster filesystem like GFS.

The default /cluster/lib/cfstab file tells the mount command to directly 
mount non-root GFS filesystems on every node (rather than using CFS). 
This file, however, is not used in the initrd for mounting a non-root 
filesystem. It's possible that your initrd is mounting GFS with CFS.

Hope this helps,

Brian


Rudolf Gabler wrote:
> Hi all,
> 
> Thanks to Laura Ramirez I (maxcpus=1) I was able to start with 1 CPU. The
> result is still an idling CPU. I also noticed that the last message onnode 2
> is a:
>   failed to set sid and pgrp to 440 for process 440
> On the other node (still running) process 440 is the child_reaper. A KDB
> session on node 2 (hanging node) gives a: 
> 
> btp 440
> 
> 0xf7cfa330	440	2 0 0 M 0xf7cfa510 child_reaper
> EBP		EIP		Function (args)
> 0xe7fb5d1c	0xc0468ca6	schedule+0x386 (0x2, 0x0,0xffffffffm 0x1,
> 0xffffffff)
> 0xe7fb5d8c	0xc01fb5df	clms_waitfor_nodeup+0x11f (0x2, 0x0, 0x0,
> 0x0, 0x0)
> 0xe7fb5f10	0xc01e8e6a	clms_client_startup_node+0x8a
> 0xe7fb5f18	0xc01e44c5	clms_startup_node+0x15 (0x0, 0x0,
> 0xe7fb445c, 0xe7fa9af8, 0x0)
> 0xe7fb5f58	0xc024e821	initproc_postroot_init+0x91
> 0xe7fb5f60	0xc02158e2	ssisys_cluster_initproc+0x12
> 
> Any hints what I could examine further?
> 
> Rudi Gabler
> 
> 
> 
> 
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