Re: [uml-devel] Problem: copy_thread : pipe failed, err = 24

[BlaisorBlade <blaisorblade_spam@yahoo.it>]

Alle 10:26, venerdì 20 febbraio 2004, Sebastian Wiesinger ha scritto:
> Hello,
>
> I'm using a host system with 9 UML boxes and keep getting the error
>
> copy_thread : pipe failed, err = 24

This is EMFILE. Either you "ulimit"ed your UML's (and one UML needs a lot of 
filehandles) or you need to increase the filehandle limit where it is 
happening.

> This error appears first after a few hours of running and the boxes
> with this error is no longer reachable.

*Very* strange. If you mean that you can no longer login / do anything that 
needs to create a new process inside UML, I understand it. Otherwise, there 
is something strange. Please try to watch how many open files UML has (ls 
/proc/<Umlpid>/fd is your friend) and increase filehandles and process limits 
(read man proc and search about /proc/sys/kernel for this).

> The following other errors
> also appear:
>
> flush_thread : new thread failed, errno = 1
> copy_thread : clone failed - errno = 11
> copy_thread : clone failed - errno = 1
> copy_thread : clone failed - errno = 1

EPERM (very strange) and EAGAIN (too many processes running). Checking the 
source for sys_clone could be needed to diagnose EPERM (unless you have 
something as GrSecurity active).

-- 
Paolo Giarrusso, aka Blaisorblade
Linux registered user n. 292729



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