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Groups > linux.kernel > #1499685
| From | Thomas Gleixner <tglx@linutronix.de> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | Re: [PATCH] x86/apic: Fix suspicious RCU usage in smp_trace_call_function_interrupt |
| Date | 2016-10-12 15:30 +0200 |
| Message-ID | <srrLA-4Wx-29@gated-at.bofh.it> (permalink) |
| References | <shylj-3ql-17@gated-at.bofh.it> <shAQ9-54k-5@gated-at.bofh.it> <sj1XX-2Zs-1@gated-at.bofh.it> <srpA6-3Ax-15@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
On Wed, 12 Oct 2016, Wanpeng Li wrote: > irq_enter() which is called in scheduler_ipi() is too late to tell RCU > susbstems to end the extended quiescent state before ack_APIC_irq(), > any ideas? You can call irq_enter/exit() in __smp_reschedule_interrupt(). It can be called nested. Thanks, tglx
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Re: [PATCH] x86/apic: Fix suspicious RCU usage in smp_trace_call_function_interrupt Wanpeng Li <kernellwp@gmail.com> - 2016-10-12 13:10 +0200
Re: [PATCH] x86/apic: Fix suspicious RCU usage in smp_trace_call_function_interrupt Thomas Gleixner <tglx@linutronix.de> - 2016-10-12 15:30 +0200
Re: [PATCH] x86/apic: Fix suspicious RCU usage in smp_trace_call_function_interrupt Wanpeng Li <kernellwp@gmail.com> - 2016-10-13 14:30 +0200
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