https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=275086
b...@desync.com changed:
What |Removed |Added
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CC| |b...@desync.com
--- Comment #3 from b...@desync.com ---
Created attachment 256313
--> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=256313&action=edit
fix
The offending commit appears to be 279cd05b7e4d.
0x4 in the ECR is apparently:
> Bit 2: Send Accept Error.
> Set when the local APIC detects that a message it sent was not accepted by
> any > APIC on the APIC bus. Used only on P6 family and Pentium processors.
I guess pre-P4 systems don't like IPIs fired off into oblivion. Attached patch
adds a check for multiple CPUs to match the one in
smp_targeted_tlb_shootdown(), which seems to be the only other caller. Tested
on single-CPU 440BX and multiprocessor i840.
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