Messages in this thread | | | From | Linus Torvalds <> | Date | Thu, 3 May 2012 13:09:47 -0700 | Subject | Re: [PATCH RESEND 1/3] printk: convert byte-buffer to variable-length record buffer |
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On Thu, May 3, 2012 at 1:02 PM, Peter Zijlstra <peterz@infradead.org> wrote: > > Thing is, with bonkers stuff like usb-console and kms/drm that's a _lot_ > of code running under the logbuf/console locks.
The top-level console lock shouldn't be a problem - we use trylock and delay if it is held.
It's the lower-level driver-specific locks that screw us up. And quite frankly, I am *not* willing to say that that is a printk() problem. That is purely a "USB serial console is damn well broken" issue, and should not be considered a limitation of printk.
Linus
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