On Sat, Dec 31, 2022 at 2:41 AM Zhouyi Zhou <zhouzhouyi@xxxxxxxxx> wrote: > > On Sat, Dec 31, 2022 at 10:14 AM Joel Fernandes <joel@xxxxxxxxxxxxxxxxx> wrote: > > > > On Fri, Dec 30, 2022 at 9:04 PM Zhouyi Zhou <zhouzhouyi@xxxxxxxxx> wrote: > > > > > > Hi Joel > > > > > > As a beginner, I am interested and I have time, could you tell me > > > where to download 6.0.16-rc2-g50f737b34ede when you are convenient? > > > And could you tell me which torture command you are invoking? I may > > > help to do some tests ;-) > > > > Sure Zhouyi, You can checkout linux-6.0.y from the stable tree [1] and > > easily reproduce it via: > > tools/testing/selftests/rcutorture/bin/kvm.sh --allcpus --duration 5 > > --configs "25*TREE07" > > This will take 2 hours to run a total of 25 tests of TREE07. The main > > interest is in the shutdown stage. > > > > If you want to collect traces when the RCU stall triggers, you can do > > something like: > > > > tools/testing/selftests/rcutorture/bin/kvm.sh --allcpus --duration 5 > > --configs 20*TREE07 --bootargs > > "trace_event=sched:sched_switch,sched:sched_waking,sched:sched_wakeup,rcu:rcu_callback,rcu:rcu_fqs,rcu:rcu_grace_period > > ftrace_dump_on_oops panic_on_warn=1 sysctl.kernel.panic_on_rcu_stall=1 > > sysctl.kernel.max_rcu_stall_to_panic=1" trace_buf_size=300K --kconfig > > "CONFIG_RCU_TRACE=y CONFIG_DEBUG_INFO_DWARF5=y > > CONFIG_RANDOMIZE_BASE=n" > > > > You can see these traces in a link in my last email. Refer to that > > email for the special trace_printk() patch as well if you fancy, > > though that is optional. > Thank Joel for your guidance! Your instruction is clear and easy to > follow! I will do it. I may report my testing result tomorrow. Sure! Glad to see your interest and let me/us know how it goes! > > As a suggestion, also avoid top-posting to mailing lists [2] > Thank Joel for your guidance! Thank you for correcting my mistake, > which I have been doing like this for years. > Without your guidance, I may continue my inappropriate behavior forever. Thank you, I appreciate that! thanks, - Joel
