On Thu, Jun 04, 2020 at 09:02:20PM -0700, Eric Biggers wrote: > Introduced by: > > commit 42f56b7a4a7db127a9d281da584152dc3d525d25 > Author: Ritesh Harjani <riteshh@xxxxxxxxxxxxx> > Date: Wed May 20 12:10:34 2020 +0530 > > ext4: mballoc: introduce pcpu seqcnt for freeing PA to improve ENOSPC handling > Hmm, syzbot reported this several times already. Marking it as a duplicate of the report where the discussion happened: #syz dup: linux-next test error: BUG: using smp_processor_id() in preemptible [ADDR] code: syz-fuzzer/6792 - Eric