Messages in this thread |  | | From | Daniel Phillips <> | Subject | Re: Feedback on preemptible kernel patch | Date | Mon, 10 Sep 2001 05:24:36 +0200 |
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On September 9, 2001 11:37 pm, Robert Love wrote: > On Sun, 2001-09-09 at 17:23, Arjan Filius wrote: > > After my succes report i _do_ noticed something unusual: > > > > I'm not sure it's preempt related, but you wanted feedback :) > > > > Sep 9 23:08:02 sjoerd kernel: __alloc_pages: 0-order allocation failed (gfp=0x70/1). > > Sep 9 23:08:02 sjoerd last message repeated 93 times > > Sep 9 23:08:02 sjoerd kernel: cation failed (gfp=0x70/1). > > Sep 9 23:08:02 sjoerd kernel: __alloc_pages: 0-order allocation failed (gfp=0x70/1). > > Sep 9 23:08:02 sjoerd last message repeated 281 times > > > > This is at the very moment i make a ppp connection to internet, and > > get/set the time with netdate (for the first time after a reboot). > > I didn't see this a second time (yet). > > > > damn, I was exciting we had solved everything :) > > actually, I am not confident of what could cause these results. the > 2.4.10-pre is going through another set of changes it should not, and > one of them concerns exactly what you are reporting.
This may not be your fault. It's a GFP_NOFS recursive allocation - this comes either from grow_buffers or ReiserFS, probably the former. In either case, it means we ran completely out of free pages, even though the caller is willing to wait. Hmm. It smells like a loophole in vm scanning.
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