[Bsd-sharp-list] Mono semaphor help needed

[R. Tyler Ballance]

On Feb 11, 2007, at 11:14 PM, Tom McLaughlin wrote:

> Recently through PRs and pointyhat emails I've seen a few instances
> where building Mono has gotten stuck because the machine has run  
> out of
> semaphores to execute mono.  The errors look something like this
> repeating many times:
>
> ** (/usr/local/lib/mono/1.0/mcs.exe:36951): CRITICAL **:  
> _wapi_shm_semaphores_init: semget error:
> No space left on device. Try deleting some semaphores with ipcs and  
> ipcrm
>
> The problem is that mono goes into an infinite loop trying to get one
> instead of failing.  I think it would be preferable to have mono  
> give up
> and have the C# app crash (maybe with a note why?) instead of just
> continually looping.  Now the hard part...  Who wants to do the work?
> I'm not sure where or how to handle this.  Thanks.

I'm feeling sadistic this week, so here goes.

How reproducible is this? My FreeBSD boxen are running 6.2-STABLE on  
both of them with fairly GENERIC kernels (with some networking  
additives) is it something you can tell a definite difference between  
CURRENT and STABLE? The obvious short-and-easy solution would be to  
scold users tremendously and then tell them to update the appropriate  
sysctl's in /boot/loader.conf and try their broken app again ;)

It's looking like I've a week of politics ahead of me, so I might be  
able to look into this while unable to do real work, but I would need  
a test case and the environment under which I can reproduce this  
silly stuff.



Cheers

R. Tyler Ballance: Custom Mac and Linux Development at bleep. consulting
contact: tyler at bleepconsulting.com | jabber: tyler at jabber.geekisp.com


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