* Re: [serial] 679193b7ba: BUG:spinlock_bad_magic_on_CPU [not found] <20200802054852.GR23458@shao2-debian> @ 2020-08-02 10:50 ` Andy Shevchenko 2020-08-02 10:58 ` Greg Kroah-Hartman 0 siblings, 1 reply; 3+ messages in thread From: Andy Shevchenko @ 2020-08-02 10:50 UTC (permalink / raw) To: kernel test robot Cc: Andy Shevchenko, Greg Kroah-Hartman, LKML, open list:SERIAL DRIVERS, lkp On Sun, Aug 2, 2020 at 8:54 AM kernel test robot <lkp@intel.com> wrote: > > Greeting, > > FYI, we noticed the following commit (built with gcc-9): > > commit: 679193b7baf8d88e41cbeb397ca17f797654947d ("serial: 8250: Let serial core initialise spin lock") > https://git.kernel.org/cgit/linux/kernel/git/gregkh/tty.git tty-next > > > in testcase: boot > > on test machine: qemu-system-x86_64 -enable-kvm -cpu SandyBridge -smp 2 -m 16G > > caused below changes (please refer to attached dmesg/kmsg for entire log/backtrace): > > > +-------------------------------+------------+------------+ > | | f3af1b68fc | 679193b7ba | > +-------------------------------+------------+------------+ > | boot_successes | 4 | 0 | > | boot_failures | 0 | 4 | > | BUG:spinlock_bad_magic_on_CPU | 0 | 4 | > +-------------------------------+------------+------------+ > > > If you fix the issue, kindly add following tag > Reported-by: kernel test robot <lkp@intel.com> Thanks for the report. I didn't see it on real hardware though. Maybe because of timing (race?) differences. Greg, I think the best is to revert the change until I will have better one. -- With Best Regards, Andy Shevchenko ^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [serial] 679193b7ba: BUG:spinlock_bad_magic_on_CPU 2020-08-02 10:50 ` [serial] 679193b7ba: BUG:spinlock_bad_magic_on_CPU Andy Shevchenko @ 2020-08-02 10:58 ` Greg Kroah-Hartman 2020-08-02 11:16 ` Andy Shevchenko 0 siblings, 1 reply; 3+ messages in thread From: Greg Kroah-Hartman @ 2020-08-02 10:58 UTC (permalink / raw) To: Andy Shevchenko Cc: kernel test robot, Andy Shevchenko, LKML, open list:SERIAL DRIVERS, lkp On Sun, Aug 02, 2020 at 01:50:29PM +0300, Andy Shevchenko wrote: > On Sun, Aug 2, 2020 at 8:54 AM kernel test robot <lkp@intel.com> wrote: > > > > Greeting, > > > > FYI, we noticed the following commit (built with gcc-9): > > > > commit: 679193b7baf8d88e41cbeb397ca17f797654947d ("serial: 8250: Let serial core initialise spin lock") > > https://git.kernel.org/cgit/linux/kernel/git/gregkh/tty.git tty-next > > > > > > in testcase: boot > > > > on test machine: qemu-system-x86_64 -enable-kvm -cpu SandyBridge -smp 2 -m 16G > > > > caused below changes (please refer to attached dmesg/kmsg for entire log/backtrace): > > > > > > +-------------------------------+------------+------------+ > > | | f3af1b68fc | 679193b7ba | > > +-------------------------------+------------+------------+ > > | boot_successes | 4 | 0 | > > | boot_failures | 0 | 4 | > > | BUG:spinlock_bad_magic_on_CPU | 0 | 4 | > > +-------------------------------+------------+------------+ > > > > > > If you fix the issue, kindly add following tag > > Reported-by: kernel test robot <lkp@intel.com> > > Thanks for the report. I didn't see it on real hardware though. Maybe > because of timing (race?) differences. > > Greg, I think the best is to revert the change until I will have better one. Can you send me a revert patch with the reported-by: set up? thanks, greg k-h ^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [serial] 679193b7ba: BUG:spinlock_bad_magic_on_CPU 2020-08-02 10:58 ` Greg Kroah-Hartman @ 2020-08-02 11:16 ` Andy Shevchenko 0 siblings, 0 replies; 3+ messages in thread From: Andy Shevchenko @ 2020-08-02 11:16 UTC (permalink / raw) To: Greg Kroah-Hartman Cc: kernel test robot, Andy Shevchenko, LKML, open list:SERIAL DRIVERS, lkp On Sun, Aug 2, 2020 at 1:58 PM Greg Kroah-Hartman <gregkh@linuxfoundation.org> wrote: > On Sun, Aug 02, 2020 at 01:50:29PM +0300, Andy Shevchenko wrote: > > On Sun, Aug 2, 2020 at 8:54 AM kernel test robot <lkp@intel.com> wrote: ... > > > If you fix the issue, kindly add following tag > > > Reported-by: kernel test robot <lkp@intel.com> > > > > Thanks for the report. I didn't see it on real hardware though. Maybe > > because of timing (race?) differences. > > > > Greg, I think the best is to revert the change until I will have better one. > > Can you send me a revert patch with the reported-by: set up? Done. -- With Best Regards, Andy Shevchenko ^ permalink raw reply [flat|nested] 3+ messages in thread
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2020-08-02 10:50 ` [serial] 679193b7ba: BUG:spinlock_bad_magic_on_CPU Andy Shevchenko
2020-08-02 10:58 ` Greg Kroah-Hartman
2020-08-02 11:16 ` Andy Shevchenko
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