Messages in this thread | | | Subject | RE: [PATCH] Fix the race between smp_call_function and CPU booting | From | Peter Zijlstra <> | Date | Fri, 23 Mar 2012 11:25:33 +0100 |
| |
On Thu, 2012-03-22 at 00:59 +0000, Liu, Chuansheng wrote: > Below is the complete test patch. Just run the simpl_loop_onoffline.sh > and simpl_loop_smpcalling.sh concurrently > to reproduce the race. > What I did was:
for i in {2..23} ; do echo 0 > /sys/devices/system/cpu/cpu${i}/online ; done while usleep 50000 ; do echo 1 > /debug/smp_call_test ; done & while :; do echo $i > /sys/devices/system/cpu/cpu1/online ; let i^=1 ; done
and this has been running for well over 30 minutes.. is there anything else one needs to do?
| |