Re: memory allocation error messages in system log

[Marcelo Tosatti <marcelo.tosatti@cyclades.com>]

On Thu, Sep 16, 2004 at 02:48:40PM +0200, Ingo Freund wrote:
> Hello,
> 
> I hope you guys can help, I cannot use any kernel 2.4 >23 without
> the here described problem.
> 
> [1.] One line summary of the problem:
> strange error messages concerning memory allocation
> 
> searching teh web for solutions to my problem I have already found
> a thread in a mailing list but no solution was mentioned, also the
> guys who talked about the error didn't answer to my direct mail.
> 
> [2.] Full description of the problem/report:
> The machine is a database server without any other service except sshd
> running. I do some tests on the ICP-Vortex GDT controller every 2 minutes.
> by using
> # cat /proc/scsi/gdt/2
> but the output of cat stops without beeing completed.
> 
> This is what I see in the syslog file every time when I use the cat
> command (the messages beginn after 3 days uptime):
> --> /var/log/messages
> kernel: __alloc_pages: 0-order allocation failed (gfp=0x21/0)

Ingo,

I've seen another report like this one - I'm convinced there
is something odd with the gdth proc handling code.

Can you "echo 1 > /proc/sys/vm/vm_gfp_debug" and 
rerun the "cat /proc/scsi/gdt/2" please?