* Chenyi Qiang <chenyi.qiang@xxxxxxxxx> wrote:
It's possible that BIOS/firmware has set DEBUGCTLMSR_BUS_LOCK_DETECT, or
this kernel has been kexec'd from a kernel that enabled bus lock
detection.
Disable bus lock detection explicitly if not wanted.
Makes sense.
Just curious: in what circumstances does the BIOS/firmware set
DEBUGCTLMSR_BUS_LOCK_DETECT? Does it use it, or does it enable it for some
spurious reason, without really using the feature? (Assuming you are aware
of instances where this happened - or was this simply a hypothetical?)
Thanks,
Ingo