From: mulyadi.santosa@gmail.com (Mulyadi Santosa)
To: kernelnewbies@lists.kernelnewbies.org
Subject: show_regs vs dump_stack in watchdog_timer_fn
Date: Fri, 3 Jun 2011 05:43:49 +0700 [thread overview]
Message-ID: <BANLkTimtxT-ErEtOTDnLUcTW3mdnv8wC6Q@mail.gmail.com> (raw)
In-Reply-To: <BANLkTimrqVwGdc8DRMVPki13O5XBoJmv8w@mail.gmail.com>
On Thu, Jun 2, 2011 at 21:15, Daniel Baluta <daniel.baluta@gmail.com> wrote:
> Hello,
>
> Why the stack isn't always dumped in watchdog_timer_fn ([1])?
>
> Registers content is useful, but without a stack trace it's very
> hard to find the task which caused system softlockup.
AFAIK, because there's no guarantee stack frame content can be trusted
as such time...i.e could be corrupted...
--
regards,
Mulyadi Santosa
Freelance Linux trainer and consultant
blog: the-hydra.blogspot.com
training: mulyaditraining.blogspot.com
prev parent reply other threads:[~2011-06-02 22:43 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-06-02 14:15 show_regs vs dump_stack in watchdog_timer_fn Daniel Baluta
2011-06-02 22:43 ` Mulyadi Santosa [this message]
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