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Groups > linux.kernel > #1460957
| From | Wanpeng Li <kernellwp@gmail.com> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | Re: [PATCH] x86/x2apic: fix x2apic_cluster_probe null pointer |
| Date | 2016-08-12 08:00 +0200 |
| Message-ID | <s5dFD-63T-5@gated-at.bofh.it> (permalink) |
| References | <s5dmh-5Xg-1@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
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 Regards, Wanpeng Li
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[PATCH] x86/x2apic: fix x2apic_cluster_probe null pointer Huaitong Han <huaitong.han@intel.com> - 2016-08-12 07:40 +0200
Re: [PATCH] x86/x2apic: fix x2apic_cluster_probe null pointer Wanpeng Li <kernellwp@gmail.com> - 2016-08-12 08:00 +0200
Re: [PATCH] x86/x2apic: fix x2apic_cluster_probe null pointer "Han, Huaitong" <huaitong.han@intel.com> - 2016-08-12 08:10 +0200
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