Messages in this thread | ![/](/images/icornerl.gif) | | Date | Sun, 21 Dec 2003 16:45:38 -0200 (BRST) | From | Marcelo Tosatti <> | Subject | Re: lot of VM problem with 2.4.23 |
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On Sun, 21 Dec 2003, Octave wrote:
> > one of my collegues had a server which occasionally crashed at night with > > mysql taking all the memory. I think it was with an old 2.4.18 kernel. He > > finally reinstalled all the machine and it never happened anymore. So > > eventhough it works for you with 2.4.22, perhaps 2.4.23 triggers a mysql > > bug which is fixed in more recent releases ? > > Willy, > Hmm ... could be, but I don't think so. I use last mysql3 version and > I have this problem without mysql too. > > For example on this box there is no mysql (Piv 2.4GHz/512Mo): > __alloc_pages: 0-order allocation failed (gfp=0x1d2/0) > VM: killing process watchdog > __alloc_pages: 1-order allocation failed (gfp=0x1f0/0) > __alloc_pages: 0-order allocation failed (gfp=0x1d2/0) > VM: killing process watchdog > > # free > total used free shared buffers cached > Mem: 514468 508416 6052 0 11608 205464 > -/+ buffers/cache: 291344 223124 > Swap: 265032 77524 187508 > > When I swithed more that 700 servers 10-15 days ago to 2.4.23, I saw that > servers swaped less that with 2.4.22. So I believe VM was modified. Cool. > Great job. Now servers begin to crash :/
Octave,
Can you please "echo 1 > /proc/sys/vm_gfp_debug" (to turn VM debugging on) and rerun the tests which crash the box.
Also run "vmstat 5" in the background and save that to a file.
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