bisecting fixing commit since f4bc5bbb5fef3cf421ba3485d6d383c27ec473ed building syzkaller on 0b33604d8e2793b82ec89abecf82d92b82e3d410 testing commit f4bc5bbb5fef3cf421ba3485d6d383c27ec473ed compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: 122e042e756f59e81eb3a35e695877dca0a6b75859c00ecb9ba77ffa18b62b24 run #0: crashed: general protection fault in l2cap_chan_timeout run #1: crashed: general protection fault in l2cap_chan_timeout run #2: crashed: general protection fault in l2cap_chan_timeout run #3: crashed: general protection fault in l2cap_chan_timeout run #4: crashed: general protection fault in l2cap_chan_timeout run #5: crashed: general protection fault in l2cap_chan_timeout run #6: crashed: general protection fault in l2cap_chan_timeout run #7: crashed: general protection fault in l2cap_chan_timeout run #8: crashed: general protection fault in l2cap_chan_timeout run #9: crashed: general protection fault in l2cap_chan_timeout run #10: crashed: general protection fault in l2cap_chan_timeout run #11: crashed: general protection fault in l2cap_chan_timeout run #12: crashed: general protection fault in l2cap_chan_timeout run #13: crashed: general protection fault in l2cap_chan_timeout run #14: OK run #15: OK run #16: crashed: general protection fault in l2cap_chan_timeout run #17: crashed: general protection fault in l2cap_chan_timeout run #18: OK run #19: OK 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: f8ad94aaa6a1ea7fb359c6ef9bfc3c1327ba15ce2303fe7797482a4ad85f0372 run #0: crashed: 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: general protection fault in l2cap_chan_timeout 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: OK run #9: OK revisions tested: 2, total time: 36m39.070065482s (build: 13m24.116235049s, test: 22m27.639521558s) 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: { P4293 } 4 jiffies s: 8293 root: 0x0/T rcu: blocking rcu_node structures (internal RCU debug):