[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] [PATCH 0/3] x86: fixes/improvements for scratch cpumask
On 12/02/2020 18:13, Sander Eikelenboom wrote: > On 12/02/2020 18:01, Roger Pau Monné wrote: >> On Wed, Feb 12, 2020 at 05:53:39PM +0100, Sander Eikelenboom wrote: >>> On 12/02/2020 17:49, Roger Pau Monne wrote: >>>> Hello, >>>> >>>> Commit: >>>> >>>> 5500d265a2a8fa63d60c08beb549de8ec82ff7a5 >>>> x86/smp: use APIC ALLBUT destination shorthand when possible >>>> >>>> Introduced a bogus usage of the scratch cpumask: it was used in a >>>> function that could be called from interrupt context, and hence using >>>> the scratch cpumask there is not safe. Patch #2 is a fix for that usage. >>>> >>>> Patch #3 adds some debug infrastructure to make sure the scratch cpumask >>>> is used in the right context, and hence should prevent further missuses. >>>> >>>> Thanks, Roger. >>> >>> Hi Roger, >>> >>> Do you still want me to test the "panic" patch ? >>> Or test this series instead ? >> >> I've been able to trigger this myself, so if you can give a try to the >> series in order to assert it fixes your issue that would be great. >> >> Thanks. >> > > Sure, compiling now, will report back tomorrow morning. > -- > Sander > Haven't seen the issue yet, so it seems fixed. Thanks ! -- Sander _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxxx https://lists.xenproject.org/mailman/listinfo/xen-devel
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