[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-devel] [PATCH 0/3] per_cpu() fixes
This patch series is two independent but related changes to the use of per_cpu() with offline pcpus. The first patch is a fix for use of get_cpu_idle_time() whereby toolstack hypercalls could cause an effective NULL structure dereference. The second patch is a forward looking fix to try and prevent similar issues in the future. It causes uses of per_cpu() against an offline pcpu to cause a #GF rather than to try and dereference a very low address. The third patch is debugging code to demonstrate the effects of patch 2. Signed-off-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx> CC: Keir Fraser <keir@xxxxxxx> CC: Jan Beulich <JBeulich@xxxxxxxx> CC: Tim Deegan <tim@xxxxxxx> CC: Ian Campbell <Ian.Campbell@xxxxxxxxxx> CC: Ian Jackson <Ian.Jackson@xxxxxxxxxxxxx> -- 1.7.10.4 _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxx http://lists.xen.org/xen-devel
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