pmcstat(8) and machdep.hlt_cpus

Attilio Rao attilio at
Wed Aug 3 14:32:51 UTC 2011

2011/7/12 Pan Tsu <inyaoo at>:
> pmcstat(8) stopped to work for me after largeSMP landed in r222813.
> At the time only pmccontrol(8) was updated. Then the next day
> machdep.hlt_cpus was ripped out. So, I've assumed it's going to
> be fixed by subsequent commits and commented out related code locally.
>  $ qemu -smp 2 -nographic ...
>  $ kldload hwpmc
>  $ pmcstat -S instructions -T
>  pmcstat: ERROR: Cannot determine which CPUs are halted: No such file or directory
>  Exit 71

Hey Pan,
do you think you can try the following patch?:

This should fix pmcstat for correctly using cpuset_t rather than
custom 32 bit integers.


Peace can only be achieved by understanding - A. Einstein

More information about the freebsd-current mailing list