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SubjectRe: [Regression] sshd hangs on close
On Sat, 30 Aug 2008 22:28:57 +0200 "Rafael J. Wysocki" <rjw@sisk.pl> wrote:

> [Adding CCs]
>
> On Saturday, 30 of August 2008, Matthias Urlichs wrote:
> > "top" sees multiple instances of:
> >
> > 6008 root 20 3184 D 0 0:00.06 flush_cpu sshd: root@pts/13
> >
> > This is 2.6.27rc5, preemption and tickless turned on, on a 4-CPU machine.
> > (OK, two hyperthreaded ones :-P) strace() shows that this happens on the
> > last close of its /dev/ptmx file descriptor, which hangs.
> >
> > I'll do a bisect early next week unless somebody else identifies a likely
> > suspect.
> >

Please do `echo w > /proc/sysrq-trigger', send the resulting trace.


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