On Thu, Oct 03, 2024 at 02:28:24PM +0200, Peter Zijlstra wrote: > On Thu, Oct 03, 2024 at 11:27:07AM +0200, Peter Zijlstra wrote: > > On Thu, Oct 03, 2024 at 10:47:43AM +0200, Peter Zijlstra wrote: > > > On Thu, Oct 03, 2024 at 10:40:39AM +0200, Peter Zijlstra wrote: > > > > On Wed, Aug 21, 2024 at 02:57:16PM -0700, Paul E. McKenney wrote: > > > > > > > > > My reproducer on the two-socket 40-core 80-HW-thread systems is: > > > > > > > > > > tools/testing/selftests/rcutorture/bin/kvm.sh --allcpus --duration 1m --configs "50*TREE03" --trust-make > > > > > > > > > > > > > This gets me a very long stream of: > > > > > > > > Results directory: /usr/src/linux-rcu/tools/testing/selftests/rcutorture/res/2024.10.03-09.30.33 > > > > tools/testing/selftests/rcutorture/bin/kvm.sh --allcpus --duration 1m --configs 50*TREE03 --trust-make > > > > TREE03 ------- > > > > QEMU error, output: > > > > cat: /usr/src/linux-rcu/tools/testing/selftests/rcutorture/res/2024.10.03-09.30.33/TREE03/qemu-output: No such file or directory > > > > TREE03.10 ------- > > > > QEMU error, output: > > > > cat: /usr/src/linux-rcu/tools/testing/selftests/rcutorture/res/2024.10.03-09.30.33/TREE03.10/qemu-output: No such file or directory > > > > ... > > > > > > > > > > > > Did I not do it right? > > > > > > Urgh, for some reason my machine doesn't auto load kvm_intel.ko and then > > > proceeds to not do anything useful.. Let me try again. > > > > Works a ton better now, obviously no splat yet :/ > > I have by now ran many hundreds of 1m TREE03 instances, and not yet seen > anything. Surely I'm doing it wrong? I ran 100*TREE03 for 18 hours each, and got 23 instances of *something* happening (and I need to suppress stalls on the repeat). One of the earlier bugs happened early, but sadly not this one. Thanx, Paul
