William Lee Irwin III wrote:
>On Tue, Nov 19, 2002 at 04:44:00PM -0500, Dave Richards wrote:
>
>
>>Nov 19 14:09:41 desktop_a kernel: ldt allocation failed
>>We get this error over and over again and no additional users can log
>>into the server.
>>I'm not on the linux-kernel list, but if anyone has insight into this
>>issue, please drop me a line. If you know a way to fix this in the 2.4
>>kernel too, or can verify that we have to wait for 2.5/2.6 we need to
>>know that too.
>>
>>
>
>IIRC this has been hit in threaded benchmarks before; ISTR a fix for LDT
>OOM going around, probably manfred's stuff which is in 2.5 and 2.4-ac.
>
>
Correct, the patch is in 2.4-ac, and I'll send it to Marcelo for 2.4.21.
How many concurrent processes are running? Each thread that is linked
against libpthread consumes 64 kB vmalloc space, and on SMP you have
around 96 MB vmalloc space. I'd expect OOM at 1500 threads.
With the fix applied, no vmalloc space is needed for libpthread.
--
Manfred
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This archive was generated by hypermail 2b29 : Sat Nov 23 2002 - 22:00:29 EST