thread taskq / unp_gc() using 100% cpu and stalling unix socket IPC

Markus Gebert markus.gebert at
Wed Nov 14 10:39:38 UTC 2012

On 14.11.2012, at 02:12, Adrian Chadd <adrian at> wrote:

> Oh lordie, just hack the kernel to make IP_BINDANY usable by any uid,
> not just root.
> I was hoping that capabilitiies would actually be useful these days,
> but apparently not. :(
> Then you can stop this FD exchange nonsense and this problem should go away. :)

Thanks for the suggestion, I'll probably do that regardless of a fix to the unp_gc problem, because it's indeed unnecessary overhead in our scenario. Still that's a workaround you most probably don't want if you have untrusted users on the system or you end up hacking in something comparable to security.mac.seeotheruids.specificgid.


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