On 02/24/17 at 06:56P, Jonathan T. Looney wrote: > Author: jtl > Date: Fri Feb 24 18:56:00 2017 > New Revision: 314216 > URL: https://svnweb.freebsd.org/changeset/base/314216 > > Log: > We have seen several cases recently where we appear to get a double-fault: > We have an original panic. Then, instead of writing the core to the dump > device, the kernel has a second panic: "smp_targeted_tlb_shootdown: > interrupts disabled". This change is an attempt to fix that second panic. > > When the other CPUs are stopped, we can't notify them of the TLB shootdown, > so we skip that operation. However, when the CPUs come back up, we > invalidate the TLB to ensure they correctly observe any changes to the > page mappings. > > Reviewed by: kib > Sponsored by: Netflix > Differential Revision: https://reviews.freebsd.org/D9786
Can this be MFCd to 11? Cheers, Hiren
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