Wei, Gang
2008-Jun-03 07:27 UTC
[Xen-devel] [PATCH]Enhance Cx stability by adding softirq check before entry cstate
Without checking softirq_pending before entry Cx state, softirq such as SCHEDULE_SOFTIRQ and TIMER_SOFTIRQ can''t be handled timely. It may cause severe failures such as disk I/O failure. This patch addresses the issue above, meanwhile move timing points closer to cstate entry/exit point to make C3 residency more accurate, and enable irq a little earlier. Signed-off-by: Wei Gang <gang.wei@intel.com> Signed-off-by: Tian Kevin <kevin.tian@intel.com> Jimmy _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel