Re: 2.6.9: unkillable processes during heavy IO

Andries Brouwer
2004-11-14T22:46:21Z

On Sun, Nov 14, 2004 at 02:30:51PM -0800, Andrew Morton wrote:
> Brad Fitzpatrick <brad@danga.com> wrote:
> >
> > Next time it hangs like this, how can I get a kernel backtrace or other useful information
> > for a certain process?
>
> echo t > /proc/sysrq-trigger
> dmesg -n 1000000 > foo

I suppose you meant s/-n/-s/

With a recent dmesg (util-linux 2.12b or later) no parameter is needed.