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SubjectRe: [PATCH] __free_pages_ok oops
> and Gerd Knorr's report (extracts below) implies that his bttv driver
> was calling unmap_kiobuf at interrupt time. Is that right, Gerd?


> encourage him to unmap at interrupt time). Now maybe Gerd's code is
> wrong anyway: a quick look suggests it may also vfree there, which
> would be wrong at interrupt time.

vfree() isn't allowed? I know vmalloc() isn't because it might sleep
while waiting for the VM getting a few free pages. Why vfree isn't
allowed? I can't see why freeing ressources is a problem ...

Is somewhere a list of things which are allowed from irq context and
which are not?


#define ENOCLUE 125 /* userland programmer induced race condition */
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