[Lustre-discuss] lfs check servers and lbug problem

[Colin Faber]

Hi,

Exact error messages are useful in this case.

-cf


On 03/20/2011 11:16 AM, Lex wrote:
> Hi there
>
> I have a problem with my lustre system,
>
> After using: *
>
> lctl --device 18 conf_param lustre-OST000d.osc.active=0
>
> *on MDS to permanently deactivate OST, i have a trouble with lfs and 
> lbug on lustre client. In a newly mount lustre client, and when i used 
> lfs to check:
>
> *lfs check servers
>
> *lfs was hang and lbug kept dumping on my lustre client.
> I still could access my data in lustre client, but when i executed 
> "*df -h*" command, it was hang with "*kernel panic - not syncing"* 
> report, it's really bad, i had to restart my server manually.
>
> Although at the same time, every other clients ( mounted client ) 
> worked well, but i still really worry about my data. I don't know 
> whether this bug is harmful with my data or not.
>
> This problem is exactly like this bug 
> <https://bugzilla.lustre.org/show_bug.cgi?id=18329> with lfs ( i found 
> it by googling around ) .
>
> Although the status of this bug is "resolved" but i'm currently being 
> in trouble with it, with all the same symptoms.
>
> I also found this post 
> <http://lists.lustre.org/pipermail/lustre-discuss/2009-September/011657.html> 
> from Andreas that mentioned a patch of this bug but i couldn't find 
> anything.
>
> I'm using Lustre 1.8 and CentOS 5.5
>
> Could anyone give me some advice in this situation ? Is there a way to 
> fix this bug ?
>
> Many thanks
>
>
>
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