Re: soft lockup in serial8250_console_write(?)

Ingo Molnar <[email protected]> wrote:
>
> 
> * Randy.Dunlap <[email protected]> wrote:
> 
> > > > This function calls wait_for_xmitr() [inline], which in worst case can 
> > > > spin for 1.010 seconds.  Could this be the cause of a soft lockup?
> > > 
> > > hm, it shouldnt cause that. Could you try the attached patch [which is 
> > > the next-gen softlockup detector], do you get the message even with that 
> > > one applied?
> > 
> > 5/5 good boots with your new patch.
> > 5/5 soft lockups without it.
> > 
> > Is this scheduled for post-2.6.16 ?
> 
> yes, in theory. Andrew?
> 

Which?  timer-irq-driven-soft-watchdog-cleanups.patch?  Yup.
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• References:
  • soft lockup in serial8250_console_write(?)
    • From: "Randy.Dunlap" <[email protected]>
  • Re: soft lockup in serial8250_console_write(?)
    • From: Ingo Molnar <[email protected]>
  • Re: soft lockup in serial8250_console_write(?)
    • From: "Randy.Dunlap" <[email protected]>
  • Re: soft lockup in serial8250_console_write(?)
    • From: Ingo Molnar <[email protected]>

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