ENOMEM in journal_get_undo_access_Rsmp_767cdac6

[Cristian CHIRILOV]

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t wrote:
> While testing a server and its mounted SAN drives, I got  these error
> messages when trying to create a very large file.
> 
> Oct 10 14:04:36 melisrv kernel: ENOMEM in
> journal_get_undo_access_Rsmp_767cdac6, retrying.
> Oct 10 14:06:45 melisrv kernel: ENOMEM in
> journal_get_undo_access_Rsmp_767cdac6, retrying.
> Oct 10 14:06:46 melisrv kernel: ENOMEM in journal_alloc_journal_head,
> retrying.
> 
> The command used: dd if=/dev/zero of=testfile bs=1M count=20000
> 
> Is this an issue with my system configuration?
> 
> uname -a
> Linux melisrv 2.4.9-e.57enterprise #1 SMP Thu Dec 2 20:45:51 EST 2004
> i686 unknown
> 
> more /etc/redhat-release
> Red Hat Linux Advanced Server release 2.1AS (Pensacola)
> 
> [tdelov at melisrv tdelov]$ free  
>              total       used       free     shared    buffers     cached
> Mem:       8234188     308272    7925916          0      23520      26412
> -/+ buffers/cache:     258340    7975848
> Swap:      2048276          0    2048276
> 

Hello,

These messages usually appear under heavy memory pressure.
There are places in the kernel that log the memory allocation failures.
The journal code is one of them. Most of them simply retry without
logging anything.

There is no need to worry about your system configuration. It's just a
warning meaning that the filesystem retries the allocation.





- --
Cristian CHIRILOV
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