> -----Original Message----- > From: Tim Blechmann [mailto:tim@xxxxxxxxxx] > Sent: Friday, November 27, 2009 4:33 AM > To: Leyendecker, Robert > Cc: linux-kernel@xxxxxxxxxxxxxxx; linux-ext4@xxxxxxxxxxxxxxx > Subject: Re: ext4: smp_processor_id() in preemptible > > > I have similar crash, but probably different cause-vector, posted on > this list, fedora bugzilla, rt-users but no response so far from > anyone. Did you find any work around? I tried looking at smp code for > hints on problem it looks like in my case it could be trying to > reschedule work on different CPU at time of crash. However, I admit > that I could be way, way off on that cause. In my case, if I hammer my > network interface with packets while another app is reading packets, my > host locks up and clients are reporting dest unreachables. > > > > I don't think I have the problem in non-rt kernel. Have you tried > booting without smp support? > > i haven't tried to reproduce it since then ... it occurred, when i was > doing some heavy io tasks ... > > tim > > -- > tim@xxxxxxxxxx > http://tim.klingt.org > > Nothing exists until or unless it is observed. An artist is making > something exist by observing it. And his hope for other people is that > they will also make it exist by observing it. I call it 'creative > observation.' Creative viewing. > William S. Burroughs OK - thanks. I'm arriving here via heavy network io, relatively easy to repro in my case. -Bob ��.n��������+%������w��{.n�����{�����ܨ}���Ơz�j:+v�����w����ޙ��&�)ߡ�a����z�ޗ���ݢj��w�f