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SubjectRe: [BUG] commit 3c517a61, slab: better fallback allocation behavior
On Sun, 10 Dec 2006 12:49:07 -0800
Paul Jackson <> wrote:

> Good report - thanks.
> Christoph - fallback_alloc() can be called with interrupts off.
> I fixed the cpuset_zone_allowed() call from fallback_alloc() to avoid
> sleeping. Notice the __GFP_HARDWALL added in Linus's version, or the
> new function cpuset_zone_allowed_hardwall() in Andrew's version, all
> done in the last week.
> But apparently kmem_getpages() can also sleep, as it calls __alloc_pages().

This is lame. Please, always always test all new submissions with all the
nice kernel debugging options enabled.

They are summarised in Documentation/SubmitChecklist, along with a number
of other useful bug-prevention suggestions.
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