Re: [LTP] [PATCH] testcase pidns20, pidns21 on pid namespace

[Subrata Modak <subrata@linux.vnet.ibm.com>]

On Mon, 2009-02-16 at 10:59 +0530, Subrata Modak wrote: 
> Thanks Suka,
> 
> On Sat, 2009-02-14 at 12:31 -0800, Sukadev Bhattiprolu wrote:
> > Subrata Modak [subrata@linux.vnet.ibm.com] wrote:
> > | 
> > | > > pidns21:
> > | > >    The pidns21.c testcase verifies that container-init is terminated
> > | > >    by SIGUSR1 when:
> > | > >       - a handler is specified for SIGUSR1,
> > | > >       - container-init blocks SIGUSR1,
> > | > >       - parent queues SIGUSR1 and
> > | > >       - handler for SIGUSR1 is set to system default before SIGUSR1 is 
> > | > > unblocked.
> > 
> > I know I had acked this test before, but back then the actual implementation
> > of the signal semantics in the kernel were not complete.
> > 
> > To simplify the implementation of the semantics, it was decided that
> > SIGKILL/SIGSTOP would be the only reliable signals from a parent
> > container. IOW, container-init would ignore SIGUSR1 or SIGINT, SIGQUIT
> > etc even if sent from a parent container.
> > 
> > See patchset/discussion:
> > 
> > 	http://lkml.org/lkml/2009/1/17/131
> > 
> > (which is not yet merged, but appears to be close to consensus)
> > 
> > The  rationale for this simplification is that any serious
> > 'container-init' would explicitly SIG_IGN all signals that it is
> > not interested in. So the only signals that would be in SIG_DFL
> > state would be SIGKILL/SIGSTOP.
> > 
> > Effectively, testcase pidns21 will fail if/when the above patchset
> > (specifically, patch 5/6) is merged.
> 
> Gowri,
> 
> Kindly update this test when the patch makes into next stable kernel
> release.

Suka/Gowri,

Are we still looking into these tests ?

Regards--
Subrata

> 
> Regards--
> Subrata
> 
> 
> 
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