From: neil.baylis@gmail.com (Neil Baylis)
To: kernelnewbies@lists.kernelnewbies.org
Subject: Calling printk with locks held
Date: Thu, 2 Jun 2011 13:43:05 -0700 [thread overview]
Message-ID: <BANLkTim4iXf79fnUswpEDdgZ5rQ7RfOFjA@mail.gmail.com> (raw)
I've just been told that it's not OK to call printk while holding a lock.
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
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Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-06-02 20:43 Neil Baylis [this message]
2011-06-02 22:45 ` Calling printk with locks held Mulyadi Santosa
2011-06-02 22:54 ` Dave Hylands
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