No space left on device: apr_proc_mutex_lock failed.

[ZZheng]

Hi,

When i am running a stressed test on apache 2.x, i got this error:

No space left on device: apr_proc_mutex_lock failed.
But the machine has enough HDD space left.

Does any body has idea?
Regards,
Zhe

[U.SivaKumar_2]

Hi,
Go to root directory
#cd /
#bdf
See any filesystem has approached 100% space.

regards,
U.SivaKumar

[Wodisch]

Nin Hao,

I guess it is more about kernel internal tables running out of space...
I would increase the kernel parameters NPROC, MAXTHREADS, NKTHREAD, NFILE, and NFLOCKS (though I am not certain about the last one).
If you have any tool like GlancePlus or MeasureWare, check to which degree those are used...

FWIW,
Wodisch

[Ashwani Kashyap]

More likely that one or more kernel parameter is reaching its high water mark . Use glance to find out which one and then change the parameters accordingly.

[Michael Skurka]

In my instance, it was semmni that was too small. Increasing semmni (and semmns) solved it for me.

M. Skurka
Austin, Texas USA