vm_thread_new: kstack allocation failed with vm.kmem_size="1536M"
petefrench at ticketswitch.com
Sat Feb 28 14:31:07 PST 2009
So, I have a farm of machines runnign 7.1/amd64, all of which have 16 gig of
memory in them. This afternoon, as an experiment, I altered loader.conf
to have these two lines in it:
This is what I do on machines running ZFS - these machines are not, however
running ZFS, and do not have the zfs module loaded. I just wanted to see if
they would run OK with those kernel settings (as I may put ZFS on them in
I expected it to run fine, I just wanted to make sure. But after about
an hour I started getting the message in the subject line, and the
machines were unable to fork and needed to be reset.
Explanation anyone ? This makes no sense to me - I have actually expanded
the amount of memory available, so why is it now running out of stack
space ?! The machines are running a very simple setup of apache, mysql
and tomcat - and this runs fine with the kernel variables set as default.
I am very puzzled.
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