From: mulyadi.santosa@gmail.com (Mulyadi Santosa)
To: kernelnewbies@lists.kernelnewbies.org
Subject: Calling printk with locks held
Date: Fri, 3 Jun 2011 05:45:00 +0700 [thread overview]
Message-ID: <BANLkTinm8sL7dSEQ5BwEbwjLATPhJftbYQ@mail.gmail.com> (raw)
In-Reply-To: <BANLkTim4iXf79fnUswpEDdgZ5rQ7RfOFjA@mail.gmail.com>
Hi...
On Fri, Jun 3, 2011 at 03:43, Neil Baylis <neil.baylis@gmail.com> wrote:
> I've just been told that it's not OK to call printk while holding a lock.
perhaps that is lock related to terminal?
> This came as a surprise to me, as I've written thousands of lines of code
> that calls printk while holding multiple locks, and have not seen any
> problem. The only explanation I was given was that it can deadlock.
> Is this correct? I thought there were very few places where it was not safe
> to call printk.
> Neil Baylis
> _______________________________________________
> Kernelnewbies mailing list
> Kernelnewbies at kernelnewbies.org
> http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
>
>
--
regards,
Mulyadi Santosa
Freelance Linux trainer and consultant
blog: the-hydra.blogspot.com
training: mulyaditraining.blogspot.com
next prev parent reply other threads:[~2011-06-02 22:45 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-06-02 20:43 Calling printk with locks held Neil Baylis
2011-06-02 22:45 ` Mulyadi Santosa [this message]
2011-06-02 22:54 ` Dave Hylands
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