Messages in this thread | | | From | Anton Altaparmakov <> | Subject | Re: VM/VFS bug with large amount of memory and file systems? | Date | Sat, 15 Sep 2007 11:50:23 +0100 |
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Hi,
Thanks for looking into this.
On 15 Sep 2007, at 11:08, Peter Zijlstra wrote: > On Sat, 2007-09-15 at 08:27 +0100, Anton Altaparmakov wrote: > > Please, don't word wrap log-files, they're hard enough to read without > it :-( > > ( I see people do this more and more often, *WHY*? is that because we > like 80 char lines, in code and email? )
I haven't word wrapped it at all. The lines appear as whole lines in Apple Mail (my email client). It must be your email client that is wrapping them...
> Anyway, looks like all of zone_normal is pinned in kernel allocations: > >> Sep 13 15:31:25 escabot Normal free:3648kB min:3744kB low:4680kB >> high: 5616kB active:0kB inactive:3160kB present:894080kB >> pages_scanned:5336 all_unreclaimable? yes > > Out of the 870 odd mb only 3 is on the lru. > > Would be grand it you could have a look at slabinfo and the like.
Ok, Marc, would you be able to do the copy to /dev/null again (booted without the ram=2G option) and when you see that most of the memory has gone run:
cat /proc/slabinfo > slabinfo.txt cat /proc/meminfo > meminfo.txt cat /proc/vmstat > vmstat.txt cat /proc/zoneinfo > zoneinfo.txt
Then quickly abort the copy with "Ctrl+C" so hopefully you will not get a kernel panic...
Please send the content of the generated files. Thanks.
That should hopefully show what in the kernel has eaten all the low memory...
Best regards,
Anton -- Anton Altaparmakov <aia21 at cam.ac.uk> (replace at with @) Unix Support, Computing Service, University of Cambridge, CB2 3QH, UK Linux NTFS maintainer, http://www.linux-ntfs.org/
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