Messages in this thread | | | Date | Thu, 17 Mar 2022 08:45:56 +0800 | From | Oliver Sang <> | Subject | Re: [rcu] 758cf1496b: BUG:spinlock_bad_magic_on_CPU |
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hi Paul,
On Wed, Mar 16, 2022 at 10:04:37AM -0700, Paul E. McKenney wrote: > On Wed, Mar 16, 2022 at 02:16:28PM +0800, Oliver Sang wrote: > > hi, Paul, > > > > On Mon, Mar 14, 2022 at 07:06:53AM -0700, Paul E. McKenney wrote: > > > On Mon, Mar 14, 2022 at 01:50:57PM +0800, kernel test robot wrote: > > > > > > > > > > > > Greeting, > > > > > > > > FYI, we noticed the following commit (built with gcc-9): > > > > > > > > commit: 758cf1496b94442c47c339b10d80cbaadf613425 ("rcu: Make UP-vacuous normal grace period advance sequence") > > > > https://github.com/ammarfaizi2/linux-block paulmck/linux-rcu/dev.2022.03.09a > > > > > > > > in testcase: boot > > > > > > > > on test machine: qemu-system-x86_64 -enable-kvm -cpu Icelake-Server -smp 4 -m 16G > > > > > > > > caused below changes (please refer to attached dmesg/kmsg for entire log/backtrace): > > > > > > > > > > > > +--------------------------------------+------------+------------+ > > > > | | 6129c2b2dc | 758cf1496b | > > > > +--------------------------------------+------------+------------+ > > > > | BUG:spinlock_bad_magic_on_CPU | 0 | 16 | > > > > | WARNING:at_init/main.c:#start_kernel | 0 | 16 | > > > > | RIP:start_kernel | 0 | 16 | > > > > +--------------------------------------+------------+------------+ > > > > > > > > > > > > If you fix the issue, kindly add following tag > > > > Reported-by: kernel test robot <oliver.sang@intel.com> > > > > > > Does this fix it for you? > > > > > > 67792d475181 ("fixup! rcu: Make UP-vacuous normal grace period advance sequence") > > > > yes, this fixed: > > > > 6129c2b2dc65abde 758cf1496b94442c47c339b10d8 67792d4751810a675c5690ce2e9 > > ---------------- --------------------------- --------------------------- > > fail:runs %reproduction fail:runs %reproduction fail:runs > > | | | | | > > :6 100% 6:6 0% :20 dmesg.BUG:spinlock_bad_magic_on_CPU > > :6 100% 6:6 0% :20 dmesg.RIP:start_kernel > > :6 100% 6:6 0% :20 dmesg.WARNING:at_init/main.c:#start_kernel > > Very good, thank you! > > May I add your Tested-by?
sure! our great pleasure :)
Tested-by: kernel test robot <oliver.sang@intel.com>
> > Thanx, Paul >
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