Bart Smaalders wrote on 02/ 4/11 11:49 AM:
On 02/04/11 11:33, Bill Shannon wrote:
This isn't really specific to OpenSolaris since it also happens on
Solaris 10, but maybe someone here can give me some ideas?
I have a java program that is failing because it does something that calls
fork1(), which fails with ENOMEM (confirmed using truss):
27010/2: fork1() Err#12 ENOMEM
I've used both the 32-bit and 64-bit versions of the JVM. Using the 64-bit
version, I see the heap expand to just over 4GB before it forks:
27010/30: brk(0x107DE3D90) = 0
I have almost 160 GB of swap space:
$ swap -s
total: 806336k bytes allocated + 167872k reserved = 974208k used,
159746184k available
It doesn't seem like it can possibly be running out of swap space.
What other reasons would cause fork1() to fail with ENOMEM?
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The vm system is rather fond of using ENOMEM as a generic error bucket.
If you have a way of reproducing the problem, a bit of DTrace will quickly turn
up the reason. I assume it's only the 32 bit version
that is failing to fork, right?
Sorry, I wasn't clear. The 64-bit version fails as well. With the 32-bit
version I limit the Java heap to 2GB. It doesn't run out of heap, but the
fork fails.
I'm sure dtrace will solve every problem I have, but I don't know how
to use it to solve this problem! :-( Hints?
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