Messages in this thread | | | From | "Han, Huaitong" <> | Subject | Re: [PATCH] x86/x2apic: fix x2apic_cluster_probe null pointer | Date | Fri, 12 Aug 2016 05:59:25 +0000 |
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On Fri, 2016-08-12 at 13:50 +0800, Wanpeng Li wrote: > 2016-08-12 13:30 GMT+08:00 Huaitong Han <huaitong.han@intel.com>: > > percpu cpus_in_cluster is a pointer with CONFIG_CPUMASK_OFFSTACK, cpu_in_cluster > > is not alloced memory before x2apic_prepare_cpu is invoked, so cpumask_set_cpu > > would get a NULL pointer bug: > > BUG: unable to handle kernel NULL pointer dereference at (null) > > IP: [<ffffffff8105ac25>] x2apic_cluster_probe+0x35/0x70 > > Could you try this? https://lkml.org/lkml/2016/8/4/345 Get, it has been fixed, http://git.kernel.org/cgit/linux/kernel/git/tip/tip.git/commit/?id=d52c0569bab4edc888832df44dc7ac28517134f6 > > Regards, > Wanpeng Li
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