On Wed, Aug 14, 2019 at 06:09:17PM +0200, Oleg Nesterov wrote:
> On 08/14, Christian Brauner wrote:
> >
> > and a signal could come in between the system call that
> > retrieved the process gorup and the call to waitid that changes the
> ^
> > current process group.
>
>
On Wed, Aug 14, 2019 at 10:06:19AM -0700, Linus Torvalds wrote:
> On Wed, Aug 14, 2019 at 9:55 AM Rich Felker wrote:
> >
> > I don't think "downsides" sufficiently conveys that this is hard
> > breakage of a requirement for waitpid.
>
> Well, let's be honest here. Who has _ever_ seen a signal han
On Wed, Aug 14, 2019 at 9:55 AM Rich Felker wrote:
>
> I don't think "downsides" sufficiently conveys that this is hard
> breakage of a requirement for waitpid.
Well, let's be honest here. Who has _ever_ seen a signal handler
changing the current process group?
In fact, the SYSV version of setpg
On Wed, Aug 14, 2019 at 12:55:01PM -0400, Rich Felker wrote:
> On Wed, Aug 14, 2019 at 06:34:44PM +0200, Christian Brauner wrote:
> > On Wed, Aug 14, 2019 at 06:15:17PM +0200, Christian Brauner wrote:
> > > On Wed, Aug 14, 2019 at 06:09:17PM +0200, Oleg Nesterov wrote:
> > > > On 08/14, Christian B
On Wed, Aug 14, 2019 at 06:34:44PM +0200, Christian Brauner wrote:
> On Wed, Aug 14, 2019 at 06:15:17PM +0200, Christian Brauner wrote:
> > On Wed, Aug 14, 2019 at 06:09:17PM +0200, Oleg Nesterov wrote:
> > > On 08/14, Christian Brauner wrote:
> > > >
> > > > and a signal could come in between the
On Wed, Aug 14, 2019 at 06:15:17PM +0200, Christian Brauner wrote:
> On Wed, Aug 14, 2019 at 06:09:17PM +0200, Oleg Nesterov wrote:
> > On 08/14, Christian Brauner wrote:
> > >
> > > and a signal could come in between the system call that
> > > retrieved the process gorup and the call to waitid tha
On Wed, Aug 14, 2019 at 06:09:17PM +0200, Oleg Nesterov wrote:
> On 08/14, Christian Brauner wrote:
> >
> > and a signal could come in between the system call that
> > retrieved the process gorup and the call to waitid that changes the
> ^
> > current process group.
>
>
On 08/14, Christian Brauner wrote:
>
> and a signal could come in between the system call that
> retrieved the process gorup and the call to waitid that changes the
^
> current process group.
I noticed this typo only because I spent 2 minutes or more trying to
understan
From: "Eric W. Biederman"
It was recently discovered that the linux version of waitid is not a
superset of the other wait functions because it does not include
support for waiting for the current process group. This has two
downsides. An extra system call is needed to get the current process
gr
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