[Lustre-discuss] MDT Upgrade to 1.6.4.1 failed

[Somsak Sriprayoonsakul]

I forgot one thing. The machine architecture is x86_64

Somsak Sriprayoonsakul wrote:
> Hello,
>
>    We just upgrade from Lustre 1.6.3 to Lustre 1.6.4.1. However, the 
> upgraded on MDT+MGS node failed severely. The node kernel panic 
> immediately when MDT+MGS partition is mounted. Attached is kernel dump 
> log, obtained from netdump.
>
>    Here's our configuration
>
> OS: CentOS4
> Kernel used at that time:  2.6.9-55.0.9.EL_lustre.1.6.4.1smp
> 4 storage nodes:
>    storage-0-0 serve MDT+MGS and OST0, back-up for OST1
>    storage-0-1 serve OST1, back-up for MDT+MGS and OST0
>    storage-0-2 serve OST2, backup for OST3
>    storage-0-3 serve OST3, backup for OST2
> Fail-over is done by heartbeat.
> Lustre is run on Gigabit Network
>
>    There's no client mount at all when the node panic. The node panic 
> right away when issue "mount /mnt/lfs/mdt". We do tunefs.lustre and 
> e2fsck on all lustre partitions, then mount again but the node still 
> panic.
>
>    We downgrade back to 1.6.3 and everything back to normal. Do we 
> need to do anything before upgrade?
>
> Best Regards,
>
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>
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Somsak Sriprayoonsakul

Thai National Grid Center
Software Industry Promotion Agency
Ministry of ICT, Thailand
somsak_sr at thaigrid.or.th
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