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CVS commit: src/sys/arch/x86/x86
Module Name: src
Committed By: cegger
Date: Thu May 10 12:35:53 UTC 2012
xc_wait() does not wait for all cpus to finish
their callback. That means the ucode buffer is released while still in use
and this causes a crash.
Quick fix: check if the ucode buffer has been freed and abort.
You may need to run 'cpuctl ucode' twice to apply it to all cpus.
Per discussion with rmind@ use low priority xcalls and splhigh.
To generate a diff of this commit:
cvs rdiff -u -r1.2 -r1.3 src/sys/arch/x86/x86/cpu_ucode_amd.c
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
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