Messages in this thread | | | Date | Mon, 22 Dec 2003 20:09:43 +0100 | From | Andrea Arcangeli <> | Subject | Re: lot of VM problem with 2.4.23 |
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On Mon, Dec 22, 2003 at 09:03:44AM +0200, Ville Herva wrote: > 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.
if this is a leak, I doubt it has been introduced recently, the only swap accounting related change was in the shm layer, and it was supposed to be a race fix. You may want to check if you've some shm allocated in /dev/shm or ipcs, while the machine reboots. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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