Re: system-freeze: kprobe and do_gettimeofday

From: Prasanna S Panchamukhi
Date: Tue Apr 26 2005 - 09:54:55 EST

On Mon, Apr 25, 2005 at 06:08:59PM +0200, Juergen Quade wrote:
> On Mon, Apr 25, 2005 at 09:26:49PM +0530, Prasanna S Panchamukhi wrote:
> > On Sat, Apr 23, 2005 at 12:12:51PM +0200, Juergen Quade wrote:
> > > Playing around with kprobe I noticed, that "kprobing"
> > > the function "do_gettimeofday" completly freezes the
> > > system (2.6.12-rc3). Other functions like "do_fork" or
> >
> > Kprobe on "do_gettimeofday" seems to work fine on 4-way SMP i386 box.
> > What is configuration of your machine?
> Thank you for your answer!
> Find my kernel-config attached.
> The processor of the system is an Pentium M
> (1400MHz, 512MByte Memory - nothing specific).

I tested with your configuration file and it still
works fine. Can you get some more info about current tasks
using Alt+SysRq+t and Alt+SysRq+d keys.


Prasanna S Panchamukhi
Linux Technology Center
India Software Labs, IBM Bangalore
Ph: 91-80-25044636
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