Re: lot of VM problem with 2.4.23

[Ville Herva]

On Sun, Dec 21, 2003 at 11:23:38PM +0100, you [Willy Tarreau] wrote:
> >
> > Dec 21 22:08:44 stock kernel: __alloc_pages: 0-order allocation failed (gfp=0x1d2/0)
> > Dec 21 22:08:44 stock kernel: OOM: nr_swap_pages=0cd865e6c c012e1e8 c0262e3c 00000000 000001d2 00000000 00000001 cd863c00 
> 
> OK, so there's no available swap anymore (nr_swap_pages=0, Marcelo forgot the
> '\n' in the patch). I simply think that with other kernels, you're very short
> of memory, but it runs, while with this one, all memory gets consumed, and
> since there's no smart oom killer, one process has to get killed.

BTW, I have a box with 128MB ram and 512MB swap running 2.4.21-jam1 (it has
the -aa vm). I can't shut it down cleanly, because trying it goes into
endless loop trying to free memory when turning off swap. Nothing but
alt-sysrq-b seems to work.

I don't know if there is a kernel memory leak, since all user level
processes should be killed at that point, right? Unfortunately I didn't have
time to dig deeper, as the box is in (sort of) production.


-- v --

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