We've seen these, by adding the following tueables resolved the problem. More specifically, the lower zone protection made the difference.

vm.vfs_cache_pressure=1000
vm.lower_zone_protection=100
vm.max_map_count = 32668
vm.min_free_kbytes = 10000


Bernd Schubert wrote:
Oh no, not this page allocation problems again. In summer I already pos=
ted problems with page allocation errors with 2.6.7, but to me it seemed th=
at nobody cared. That time we got those problems every morning during the =
cron jobs and our main file server always completely crashed.
This time its our cluster master system and first happend after an upti=
me of 89 days, kernel is 2.6.9. Besides of those messages, the system stil=
l seems to run stable


I really beg for help here, so please please please help me solving thi=
s probem. What can I do to solve it?


First a (dumb) question, what does 'page allocation failure' really m=
ean? Is it some out of memory case?



Thanks a lot in advance for any help, Bernd

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