Messages in this thread | | | Date | Wed, 23 Jan 2008 12:25:09 -0500 | From | Mathieu Desnoyers <> | Subject | Re: [PATCH 01/20 -v5] printk - dont wakeup klogd with interrupts disabled |
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* Daniel Walker (dwalker@mvista.com) wrote: > > On Wed, 2008-01-23 at 11:02 -0500, Steven Rostedt wrote: > > > + if (!irqs_disabled() && wake_klogd) > > wake_up_klogd(); > > This causes a regression .. When printk is called during an OOPS in > kernels without this change then the OOPS will get logged, since the > logging process (klogd) is woken to handle the messages.. If you apply > this change klogd doesn't wakeup, and hence doesn't log the oops.. So if > you remove the wakeup here you have to add it someplace else to maintain > the logging .. > > (I'm not theorizing here, I have defects logged against this specific > piece of code..) >
Can we change this for : if (!(irqs_disabled() && !oops_in_progress) && wake_klogd) wake_up_klogd();
?
(totally untested)
> Daniel >
-- Mathieu Desnoyers Computer Engineering Ph.D. Student, Ecole Polytechnique de Montreal OpenPGP key fingerprint: 8CD5 52C3 8E3C 4140 715F BA06 3F25 A8FE 3BAE 9A68
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