ci starts bisection 2023-04-04 05:13:56.071438358 +0000 UTC m=+41093.739712104
bisecting fixing commit since 97ec4d559d939743e8af83628be5af8da610d9dc
building syzkaller on a63719e71f9e7c2496a8eef09aa58118deb0c0bc
ensuring issue is reproducible on original commit 97ec4d559d939743e8af83628be5af8da610d9dc

testing commit 97ec4d559d939743e8af83628be5af8da610d9dc gcc
compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2
kernel signature: 6c05cc488c1f337d935b51e3cc8455b3abcc813b83b1d36434ff1c0060c107ea
run #0: crashed: WARNING in j1939_session_deactivate_activate_next
run #1: crashed: WARNING in j1939_session_deactivate_activate_next
run #2: crashed: INFO: rcu detected stall in corrupted
run #3: crashed: INFO: rcu detected stall in corrupted
run #4: crashed: WARNING in j1939_session_deactivate_activate_next
run #5: crashed: INFO: rcu detected stall in corrupted
run #6: crashed: WARNING in j1939_session_deactivate_activate_next
run #7: crashed: WARNING in j1939_session_deactivate_activate_next
run #8: crashed: WARNING in j1939_session_deactivate_activate_next
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: WARNING in j1939_session_deactivate_activate_next
run #18: crashed: WARNING in j1939_session_deactivate_activate_next
run #19: crashed: WARNING in j1939_session_deactivate_activate_next
testing current HEAD 148341f0a2f53b5e8808d093333d85170586a15d
testing commit 148341f0a2f53b5e8808d093333d85170586a15d gcc
compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2
kernel signature: cd269cd4fe4b32a443dec5808130bc232c040f0a111601b8a9440d9430c810e5
run #0: crashed: unregister_netdevice: waiting for DEV to become free
run #1: OK
run #2: crashed: unregister_netdevice: waiting for DEV to become free
run #3: OK
run #4: OK
run #5: crashed: unregister_netdevice: waiting for DEV to become free
run #6: OK
run #7: OK
run #8: OK
run #9: OK
reproducer seems to be flaky
Reproducer flagged being flaky
revisions tested: 2, total time: 35m21.362455109s (build: 19m19.243301646s, test: 15m11.617624001s)
the crash still happens on HEAD
commit msg: Merge tag 'vfs.misc.fixes.v6.3-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/idmapping
crash: unregister_netdevice: waiting for DEV to become free
unregister_netdevice: waiting for vxcan0 to become free. Usage count = 3