On Fri, 2005-05-13 at 11:40 +0200, Per Jessen wrote:
> Couple of messages from the log:
> 
> __alloc_pages: 1-order allocation failed
> __alloc_pages: 0-order allocation failed
> 
> Exactly why this system is running out of memory has yet to be established, 
> but it seems to 
> also cause one or two JFS filesystems to turn read-only?  Which in turn only 
> exacerbates the
> problem. 
> Is this intentional behaviour?

Ideally, it would be best to avoid this.  There may be cases where we're
part of the way into a transaction and without allocating memory, we
can't complete it, leaving the file system in an inconsistent state.  It
isn't normal to have 0-order allocations fail.

Is there anything in the syslog to indicate why jfs mounted read-only?
There should be.

Thanks,
Shaggy
-- 
David Kleikamp
IBM Linux Technology Center



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