[CRIU] [PATCH] fdstore: Print detailed error when queue is exhausted

Andrey Vagin avagin at virtuozzo.com
Mon Jun 25 21:29:05 MSK 2018


On Mon, Jun 25, 2018 at 08:40:36PM +0300, Cyrill Gorcunov wrote:
> On Mon, Jun 25, 2018 at 10:20:18AM -0700, Andrey Vagin wrote:
> > On Fri, Jun 22, 2018 at 02:48:26PM +0300, Cyrill Gorcunov wrote:
> > > We use fdstore intensively for example when handling
> > > bindmounted sockets and ghost dgram sockets. The system
> > > limit for per-socket queue may not be enough if someone
> > > generate lots of ghost sockets (150 and more as been
> > > detected on default fedora 27).
> > > 
> > > We can't just increase system limits since thery are
> > > global but instead lets print an error with list
> > > of parameters to adjust. This will give a node
> > > admin a way to process restore.
> > 
> > Do you understand that, in this case, we can't use fdstore to restore
> > unix sockets?
> 
> An admin may increase the system limits, and thats all

CRIU should work w/o increasing system limits...


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