On 11/29, Jamie Iles wrote:
>
> On Tue, Nov 29, 2016 at 03:06:00PM +0100, Oleg Nesterov wrote:
> >
> > > +static inline void signal_clear_flags(struct signal_struct *sig,
> > > + unsigned int flags)
> > > +{
> > > + sig->flags &= (~flags | SIGNAL_PROTECTED_MASK);
> >
On 11/29, Jamie Iles wrote:
>
> On Tue, Nov 29, 2016 at 03:06:00PM +0100, Oleg Nesterov wrote:
> >
> > > +static inline void signal_clear_flags(struct signal_struct *sig,
> > > + unsigned int flags)
> > > +{
> > > + sig->flags &= (~flags | SIGNAL_PROTECTED_MASK);
> >
Hi Oleg,
On Tue, Nov 29, 2016 at 03:06:00PM +0100, Oleg Nesterov wrote:
> Jamie,
>
> I am really sorry for the huge delay.
No problem!
> On 11/16, Jamie Iles wrote:
> >
> > Since 00cd5c37af (ptrace: permit ptracing of /sbin/init) we can now
> > trace init processes. init is initially
Hi Oleg,
On Tue, Nov 29, 2016 at 03:06:00PM +0100, Oleg Nesterov wrote:
> Jamie,
>
> I am really sorry for the huge delay.
No problem!
> On 11/16, Jamie Iles wrote:
> >
> > Since 00cd5c37af (ptrace: permit ptracing of /sbin/init) we can now
> > trace init processes. init is initially
Jamie,
I am really sorry for the huge delay.
On 11/16, Jamie Iles wrote:
>
> Since 00cd5c37af (ptrace: permit ptracing of /sbin/init) we can now
> trace init processes. init is initially protected with
> SIGNAL_UNKILLABLE which will prevent fatal signals such as SIGSTOP, but
> there are a
Jamie,
I am really sorry for the huge delay.
On 11/16, Jamie Iles wrote:
>
> Since 00cd5c37af (ptrace: permit ptracing of /sbin/init) we can now
> trace init processes. init is initially protected with
> SIGNAL_UNKILLABLE which will prevent fatal signals such as SIGSTOP, but
> there are a
Hi Oleg,
On Thu, Nov 17, 2016 at 08:04:20PM +0100, Oleg Nesterov wrote:
> On 11/16, Jamie Iles wrote:
> >
> > This can result in init becoming stoppable/killable after tracing. For
> > example, running:
> >
> > while true; do kill -STOP 1; done &
> > strace -p 1
>
> > and then stopping
Hi Oleg,
On Thu, Nov 17, 2016 at 08:04:20PM +0100, Oleg Nesterov wrote:
> On 11/16, Jamie Iles wrote:
> >
> > This can result in init becoming stoppable/killable after tracing. For
> > example, running:
> >
> > while true; do kill -STOP 1; done &
> > strace -p 1
>
> > and then stopping
On 11/16, Jamie Iles wrote:
>
> This can result in init becoming stoppable/killable after tracing. For
> example, running:
>
> while true; do kill -STOP 1; done &
> strace -p 1
> and then stopping strace and the kill loop will result in init being
> left in state TASK_STOPPED. Sending
On 11/16, Jamie Iles wrote:
>
> This can result in init becoming stoppable/killable after tracing. For
> example, running:
>
> while true; do kill -STOP 1; done &
> strace -p 1
> and then stopping strace and the kill loop will result in init being
> left in state TASK_STOPPED. Sending
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