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From: Randolph Chung <randolph@tausq.org>
To: John David Anglin <dave@hiauly1.hia.nrc.ca>
Cc: carlos@baldric.uwo.ca, parisc-linux@lists.parisc-linux.org
Subject: [parisc-linux] Re: Trap handler
Date: Sun, 8 Dec 2002 21:12:14 -0800	[thread overview]
Message-ID: <20021209051214.GK21187@tausq.org> (raw)
In-Reply-To: <200212082355.gB8NtUAe010825@hiauly1.hia.nrc.ca>

In reference to a message from John David Anglin, dated Dec 08:
> > > I just happened to notice that the system almost totally stalled running
> > > the test.  The load average jumps from 1 to about 9.  You just have to
> > > compile and run to see the effect.  Line 127 writes to unmapped memory
> > > and causes multiple entries in /var/log/debug.
> > 
> > Dave, can you send the test program and details to the list? i didn't
> > see the beginning of this thread and am not sure which program you are
> > refering to.
> 
> Here it is.

well, something is just very broken, even this simple code triggers the
bug:

int main(int argc, char **argv)
{
        int *p = 0;
        return *p;
}

the kernel goes nuts trying to page fault continuously.

:-(
randolph
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/

  reply	other threads:[~2002-12-09  5:08 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <20021208232601.GH21187@tausq.org>
2002-12-08 23:55 ` [parisc-linux] Re: Trap handler John David Anglin
2002-12-09  5:12   ` Randolph Chung [this message]
2002-12-09  6:19     ` Randolph Chung
2002-12-09 12:54       ` Matthew Wilcox
2002-12-09 18:03         ` Grant Grundler
2002-12-09 18:20           ` Matthew Wilcox
2002-12-09 18:41             ` Grant Grundler
2002-12-09 18:55               ` Matthew Wilcox
2002-12-09 16:18       ` John David Anglin
2002-12-09 16:31         ` John David Anglin

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