On Tue, Jan 18, 2022 at 08:46:49PM -0800, Paul E. McKenney wrote:
On Wed, Jan 19, 2022 at 10:07:42AM +0800, Zhouyi Zhou wrote:
Thanks Paul for looking into this
On Wed, Jan 19, 2022 at 7:46 AM Paul E. McKenney paulmck@kernel.org wrote:
On Tue, Jan 18, 2022 at 09:29:04AM -0800, Paul E. McKenney wrote:
On Tue, Jan 18, 2022 at 08:56:24AM +0100, Paul Menzel wrote:
Dear Zhouyi,
Thank you for your quick response.
Am 18.01.22 um 08:34 schrieb Zhouyi Zhou:
I have studied the rcu torture test recently. I am also interested in this topic. But I can't open [1]: https://owww.molgen.mpg.de/~pmenzel/allmodconf-Make.out.txt [2]: https://owww.molgen.mpg.de/~pmenzel/rcutorture-log.txt
Sorry, about that. I should have checked those. I had put them into a directory:
I am going to try to test your suggestions at the end of the day.
On x86 rcutorture builds successfully. However, allmodconfig on semi-recent -next got me "Can't open perl script "./usr/include/headers_check.pl": No such file or directory". Which might well be a local problem or might well be fixed by now.
Not fixed as of next-20220118. Chasing it down... ;-)
I can do allmodconfig on -next, $git describe next-20220118 $tools/testing/selftests/rcutorture/bin/torture.sh --duration 10 --- tools/testing/selftests/rcutorture/bin/torture.sh --duration 10 --- Results directory: 2022.01.19-09.14.39-torture $ ps -aux|grep qemu-system zzy 470309 773 0.3 1876544 153936 pts/0 Sl+ 09:55 31:27 qemu-system-x86_64 -enable-kvm -nographic -smp 16 -net none -machine q35,accel=kvm -cpu kvm64 -serial file:/tmp/linux-next/tools/testing/selftests/rcutorture/res/2022.01.19-09.14.39-torture/results-rcutorture/TREE03/console.log -m 512 -kernel /tmp/linux-next/tools/testing/selftests/rcutorture/res/2022.01.19-09.14.39-torture/results-rcutorture/TREE03/bzImage -append debug_boot_weak_hash panic=-1 selinux=0 initcall_debug debug console=ttyS0 rcupdate.rcu_cpu_stall_suppress_at_boot=1 torture.disable_onoff_at_boot rcupdate.rcu_task_stall_timeout=30000 rcutorture.onoff_interval=200 rcutorture.onoff_holdoff=30 rcutree.gp_preinit_delay=12 rcutree.gp_init_delay=3 rcutree.gp_cleanup_delay=3 rcutree.kthread_prio=2 threadirqs tree.use_softirq=0 rcutorture.n_barrier_cbs=4 rcutorture.stat_interval=15 rcutorture.shutdown_secs=420 rcutorture.test_no_idle_hz=1 rcutorture.verbose=1 zzy 755865 0.0 0.0 17676 2876 pts/2 S+ 09:59 0:00 grep --color=auto qemu-system $ ls -l vmlinux -rwxrwxr-x 1 zzy zzy 69349872 1月 19 09:55 vmlinux
Could you please try the following command ? linux-next$ perl ./usr/include/headers_check.pl usr/include x86 usr/include/rdma/hfi/hfi1_user.h linux-next$ echo $? 0 The headers_check.pl in linux-next (https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/tree/usr...) is used to check the validity of head files in ./usr/include
I am currently bisecting, but once that finishes I will give this a try, thank you!
And the bisection converged badly due to there being more than one build failure.
So I ran the command above and then the build succeeded.
Though it would be good if the build worked from "make distclean"...
Thanx, Paul
Either way, it looks like I need to upgrade the torture.sh script's checks for failed builds. Thank you for reporting this!
Does this make torture.sh more reliably report build failures?
I studied this commit line by line several times and benefited a lot. Thank you!
Thanx, Paul
commit 0d302830515307ceb58e89d5fb91e81b6d22e0bf Author: Paul E. McKenney paulmck@kernel.org Date: Tue Jan 18 15:40:49 2022 -0800
torture: Make kvm-find-errors.sh notice missing vmlinux file Currently, an obtuse compiler diagnostic can fool kvm-find-errors.sh into believing that the build was successful. This commit therefore adds a check for a missing vmlinux file. Link: https://lore.kernel.org/lkml/36bd91e4-8eda-5677-7fde-40295932a640@molgen.mpg.de/ Reported-by: Paul Menzel <pmenzel@molgen.mpg.de> Signed-off-by: Paul E. McKenney <paulmck@kernel.org>diff --git a/tools/testing/selftests/rcutorture/bin/kvm-find-errors.sh b/tools/testing/selftests/rcutorture/bin/kvm-find-errors.sh index 2e9e9e2eedb69..7d3e11a6b8290 100755 --- a/tools/testing/selftests/rcutorture/bin/kvm-find-errors.sh +++ b/tools/testing/selftests/rcutorture/bin/kvm-find-errors.sh @@ -30,10 +30,15 @@ editor=${EDITOR-vi} files= for i in ${rundir}/*/Make.out do
scenariodir="`dirname $i`" if egrep -q "error:|warning:|^ld: .*undefined reference to" < $i then egrep "error:|warning:|^ld: .*undefined reference to" < $i > $i.diags files="$files $i.diags $i"elif ! test -f ${scenariodir}/vmlinuxthenecho No ${scenariodir}/vmlinux file > $i.diagsfiles="$files $i.diags $i" fidone if test -n "$files"
Thanks Zhouyi