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[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] [RFC][PATCH] walking the page lists needs the page_alloc lock
On 13/08/2010 07:40, "Jan Beulich" <JBeulich@xxxxxxxxxx> wrote: >> Sorry, my intention was to say that changes to the debug-key printouts >> are safe, not that they didn't require changes. >> >> The debug-key printouts (in particular the NUMA one) are where I >> actually hit this bug on a running system. > > But then, to avoid a hanging system, these should be trylock-s > rather than plain locks, shouldn't they? Why? The handler is called in softirq context. It should be safe to spin. -- Keir _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel
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