> >
> > Starting httpd: Ouch! ap_mm_create(1048576, "/var/run/httpd.mm.13626") failed
> > Error: MM: mm:core: failed to acquire semaphore (No space left on device): OS: Invalid argument
> >
> My first inkling is to do a 'df -h' to see how much disk space you have
> lying around.  Is /var full? is /tmp full?  You've managed to find the
> code in the file, but have you checked your disks?

OK, I should have mentioned that I checked this, because it was obvious to
do so.

output of 'df':
Filesystem           1k-blocks      Used Available Use% Mounted on
/dev/sda3             16871884  10015496   5999324  63% /
/dev/sda1               101089     13782     82088  15% /boot
none                    256936         0    256936   0% /dev/shm

In this case, /var and /tmp are on the /dev/sda3 device which has ~6GB
of free space.  There is no reason the apache process couldn't write to the
/var/run or /var/log/httpd directories due to disk space or file permissions
issues.

There is no /tmp clearing on reboot.  Since a reboot clears the problem,
it seems as if a data structure in the kernel's memory was not freed by
apache when the process exited, so when a new instance of apache is
starting, it is unable to gain access to that data structure because the
kernel has not freed it from the original process that owned it.

> Anyway, check your disks, and check your disks once you get the message.
> I bet you are having issues with disk space, at least, from what I see in
> the error.

Thanks for the suggestion - that was the first thing I checked, but it
didn't seem to be a disk space problem..

--
Jim Ockers (ockers@ockers.net)
Contact info: please see http://www.ockers.net/

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