Re: [paulmckrcu:dev.2024.08.30b] [srcu] 558049054f: BUG:using__this_cpu_read()in_preemptible

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hi, Paul,

On Thu, Sep 05, 2024 at 01:23:34AM -0700, Paul E. McKenney wrote:
> On Thu, Sep 05, 2024 at 10:21:32AM +0800, Oliver Sang wrote:
> > hi, Paul,
> > 
> > On Tue, Sep 03, 2024 at 03:26:43AM -0700, Paul E. McKenney wrote:
> > > On Tue, Sep 03, 2024 at 02:49:48PM +0800, kernel test robot wrote:
> > > > 
> > > > 
> > > > Hello,
> > > > 
> > > > kernel test robot noticed "BUG:using__this_cpu_read()in_preemptible" on:
> > > > 
> > > > commit: 558049054fe90985d650a50b6a757943a9faf646 ("srcu: Add srcu_read_lock_lite() and srcu_read_unlock_lite()")
> > > > https://github.com/paulmckrcu/linux dev.2024.08.30b
> > > > 
> > > > in testcase: boot
> > > > 
> > > > compiler: gcc-12
> > > > test machine: qemu-system-x86_64 -enable-kvm -cpu SandyBridge -smp 2 -m 16G
> > > > 
> > > > (please refer to attached dmesg/kmsg for entire log/backtrace)
> > > > 
> > > > 
> > > > +------------------------------------------+------------+------------+
> > > > |                                          | ddf16dbef6 | 558049054f |
> > > > +------------------------------------------+------------+------------+
> > > > | BUG:using__this_cpu_read()in_preemptible | 0          | 12         |
> > > > +------------------------------------------+------------+------------+
> > > > 
> > > > 
> > > > If you fix the issue in a separate patch/commit (i.e. not just a new version of
> > > > the same patch/commit), kindly add following tags
> > > > | Reported-by: kernel test robot <lkp@xxxxxxxxx>
> > > > | Closes: https://lore.kernel.org/oe-lkp/202409031433.5ce7c1e3-lkp@xxxxxxxxx
> > > 
> > > Good catch, thank you for testing!  Does the incremental patch at the
> > > end of this email fix this for you?
> > > 
> > > 							Thanx, Paul
> > 
> > I applied patch directly upon 558049054f, confirmed the issue gone.
> 
> Thank you!  May I add your Tested-by?

oh, I saw the patch has "squash!", didn't realize you still will add Tested-by
in squashed patch :) sure and thanks a lot!

Tested-by: kernel test robot <oliver.sang@xxxxxxxxx>

> 
> 							Thanx, Paul
> 




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