This is my stab at whacking $subject without adding any duct tape. My desktop box has run a thousand iterations of Steven's hotplug stress script accompanied with stockfish, futextest, hackbench and tbench to give hotplug lots of opportunity to prove this broken. So far, it has failed. 64 core DL980 is nowhere near as quick at iteration increment, but has been happily chugging along all the while. Patches are against 4.6-rc2-rt13. Barring any frozen projectiles lobbed by either humans or hotplug, I'll see what a backport to 4.4-rt would look like. This one has lots of minus signs. patch1: kernel/cpu.c | 267 ++++++++++------------------------------------------------- 1 file changed, 47 insertions(+), 220 deletions(-) patch2: kernel/locking/rtmutex.c | 37 +++++++++++++++++-------------------- 1 file changed, 17 insertions(+), 20 deletions(-) -- To unsubscribe from this list: send the line "unsubscribe linux-rt-users" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
