On 4/7/23 12:41 PM, Bart Van Assche wrote: > On 4/6/23 07:50, Chengming Zhou wrote: >> These are some cleanup patches of blk-cgroup. Thanks for review. > > With these patches applied, my kernel test VM crashes during boot. The following crash disappears if I revert these patches: > > BUG: KASAN: null-ptr-deref in bio_associate_blkg_from_css+0x83/0x240 Would be useful in the report to know where that is, as it doesn't include the code output. -- Jens Axboe