bisecting fixing commit since 119c85055d867b9588263bca59794c872ef2a30e building syzkaller on 098b5d530648147c744a7c2eb8b78c1307f9d3ce testing commit 119c85055d867b9588263bca59794c872ef2a30e compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: b1cdff9e6756fab44e2b3f17a81dc757fcc9a91e0eac8bd65c3f02117fe957b8 run #0: crashed: SYZFAIL: failed to mkdir run #1: crashed: SYZFAIL: failed to mkdtemp run #2: OK run #3: OK run #4: OK run #5: OK run #6: OK run #7: OK run #8: OK run #9: OK run #10: OK run #11: OK run #12: OK run #13: OK run #14: OK run #15: OK run #16: OK run #17: OK run #18: OK run #19: OK reproducer seems to be flaky testing current HEAD 72a8e05d4f66b5af7854df4490e3135168694b6b testing commit 72a8e05d4f66b5af7854df4490e3135168694b6b compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: fe4ca30acd6311014628b7692202f8d071a231de725b030d202fab33b61296a5 run #0: basic kernel testing failed: INFO: rcu detected stall in corrupted run #1: crashed: INFO: rcu detected stall in corrupted run #2: crashed: INFO: rcu detected stall in corrupted run #3: crashed: INFO: rcu detected stall in corrupted run #4: crashed: INFO: rcu detected stall in corrupted run #5: crashed: INFO: rcu detected stall in corrupted run #6: crashed: INFO: rcu detected stall in corrupted run #7: crashed: INFO: rcu detected stall in corrupted run #8: crashed: INFO: rcu detected stall in corrupted run #9: crashed: INFO: rcu detected stall in corrupted run #10: crashed: INFO: rcu detected stall in corrupted run #11: crashed: INFO: rcu detected stall in corrupted run #12: crashed: INFO: rcu detected stall in corrupted run #13: crashed: INFO: rcu detected stall in corrupted run #14: crashed: INFO: rcu detected stall in corrupted run #15: crashed: INFO: rcu detected stall in corrupted run #16: crashed: INFO: rcu detected stall in corrupted run #17: crashed: INFO: rcu detected stall in corrupted run #18: crashed: INFO: rcu detected stall in corrupted run #19: crashed: INFO: rcu detected stall in corrupted Reproducer flagged being flaky revisions tested: 2, total time: 26m33.83855029s (build: 12m52.153804537s, test: 12m51.725054841s) the crash still happens on HEAD commit msg: Merge tag 'ovl-fixes-5.19-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs crash: INFO: rcu detected stall in corrupted rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { P4489 } 4 jiffies s: 8681 root: 0x0/T rcu: blocking rcu_node structures (internal RCU debug):