On Thu, Mar 23, 2023 at 11:00:59PM +0530, Sachin Sant wrote: > > >> [ 3629.243407] NIP [00007fff8cd39558] 0x7fff8cd39558 > >> [ 3629.243410] LR [000000010d800398] 0x10d800398 > >> [ 3629.243413] --- interrupt: c00 > >> [ 3629.243415] Code: 419dffa4 e93a0078 39400001 552907be 2f890000 7d20579e 0b090000 e95a0078 e91a0080 39200001 7fa85000 7d204f9e <0b090000> 7f23cb78 4bfffd65 0b030000 > >> [ 3629.243430] ---[ end trace 0000000000000000 ]— > >> > >> These warnings are repeated few times. The LTP test is marked as PASS. > >> > >> Git bisect point to the following patch > >> commit f46a5170e6e7d5f836f2199fe82cdb0b4363427f > >> srcu: Use static init for statically allocated in-module srcu_struct > > > > Hello, Sachin, and it looks like you hit something that Zqiang and I > > have been tracking down. I am guessing that you were using modprobe > > and rmmod to make this happen, and that this happened at rmmod time. > > > Yes, the LTP test script rcu_torture.sh relies on modprobe to load/unload > the rcutorture module. > > > Whatever the reproducer, does the following patch help? > > Thank you for the patch. Yes, with this patch applied, the test completes > successfully without the reported warning. Very good, thank you! May we have your Tested-by? Thanx, Paul
