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From: Oleg Nesterov <oleg@redhat.com>
To: "Frank Ch. Eigler" <fche@redhat.com>
Cc: Jan Kratochvil <jan.kratochvil@redhat.com>,
	utrace-devel@redhat.com, archer@sourceware.org
Subject: Re: gdbstub initial code, v7
Date: Fri, 03 Sep 2010 23:00:00 -0000	[thread overview]
Message-ID: <20100903225738.GB8917@redhat.com> (raw)
In-Reply-To: <y0m62ymzzbd.fsf@fche.csb>

On 09/03, Frank Ch. Eigler wrote:
>
> Oleg Nesterov <oleg@redhat.com> writes:
>
> > [...]  To the point, I had to add printk's to utrace.c to understand
> > what is wrong. Hopefully tomorrow.
>
> You might wish to try out systemtap for such purposes.  It's easy to
> insert printk-like tracing at almost any point; monitor variables for
> changes, pretty-print structs, etc.

Probably I should try the new versions...

Last time I tried systemtap more than year ago. It didn't work for me
without the "properly installed" kernel/etc which I don't have. And,
I doubt I can insert the probe at the needed line without DEBUG_INFO.

> No recompilation/reboot.

CONFIG_KPROBE ;)

But anyway I agree, systemtap is the great tool.

Oleg.

      reply	other threads:[~2010-09-03 23:00 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-08-30 19:02 Oleg Nesterov
2010-08-30 19:20 ` Jan Kratochvil
2010-08-31  7:21   ` Jan Kratochvil
2010-09-02 20:09     ` Oleg Nesterov
2010-09-03  6:40       ` Jan Kratochvil
2010-09-03 19:59         ` Roland McGrath
2010-09-03 20:03           ` Jan Kratochvil
2010-09-03 20:10             ` Roland McGrath
2010-09-03 23:13         ` Oleg Nesterov
2010-09-10 10:15           ` Roland McGrath
2010-09-10 18:32             ` Oleg Nesterov
2010-09-10 19:06               ` Roland McGrath
2010-09-10 19:23                 ` Oleg Nesterov
2010-10-13  7:23                   ` Roland McGrath
2010-10-15 14:32                     ` Oleg Nesterov
2010-09-03 14:17       ` Frank Ch. Eigler
2010-09-03 23:00         ` Oleg Nesterov [this message]

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