bisecting fixing commit since cf256fbcbe347b7d0ff58fe2dfa382a156bd3694
building syzkaller on 95777977ade5226323e35e6e5fa1594327640732
testing commit cf256fbcbe347b7d0ff58fe2dfa382a156bd3694 with gcc (GCC) 8.4.1 20210217
kernel signature: da4434fe80caf27f72687fc23e8c07cc380dcd5b4afea59dc3987e7e440bb3f7
run #0: crashed: WARNING in kill_block_super
run #1: crashed: WARNING in corrupted
run #2: crashed: WARNING in efs_kill_sb
run #3: crashed: WARNING in kill_block_super
run #4: crashed: WARNING in kill_block_super
run #5: crashed: WARNING in efs_kill_sb
run #6: crashed: WARNING in corrupted
run #7: crashed: WARNING in efs_kill_sb
run #8: crashed: WARNING in corrupted
run #9: crashed: WARNING in corrupted
run #10: crashed: WARNING in corrupted
run #11: crashed: WARNING in corrupted
run #12: crashed: WARNING in kill_block_super
run #13: crashed: WARNING in efs_kill_sb
run #14: crashed: WARNING in efs_kill_sb
run #15: crashed: WARNING in kill_block_super
run #16: crashed: WARNING in corrupted
run #17: crashed: WARNING in kill_block_super
run #18: crashed: WARNING in kill_block_super
run #19: crashed: WARNING in corrupted
testing current HEAD cfb41ef9deb1e6572ac218ddfcec9567e5d1c101
testing commit cfb41ef9deb1e6572ac218ddfcec9567e5d1c101 with gcc (GCC) 8.4.1 20210217
kernel signature: 00c3800a5e7c4fe4435c76a0ed6154b5b83adf886b5f715e7458d7cbc4c2e30a
all runs: crashed: unregister_netdevice: waiting for DEV to become free
revisions tested: 2, total time: 22m8.518547775s (build: 15m11.574187217s, test: 6m28.763055668s)
the crash still happens on HEAD
commit msg: Linux 4.14.237
crash: unregister_netdevice: waiting for DEV to become free
unregister_netdevice: waiting for ip6gre0 to become free. Usage count = -1
Bluetooth: hci1 command 0x0409 tx timeout
Bluetooth: hci0 command 0x0409 tx timeout
Bluetooth: hci4 command 0x0409 tx timeout
Bluetooth: hci3 command 0x0409 tx timeout
Bluetooth: hci5 command 0x0409 tx timeout
Bluetooth: hci2 command 0x0409 tx timeout
Bluetooth: hci1 command 0x041b tx timeout
Bluetooth: hci2 command 0x041b tx timeout
Bluetooth: hci5 command 0x041b tx timeout
Bluetooth: hci3 command 0x041b tx timeout
Bluetooth: hci4 command 0x041b tx timeout
Bluetooth: hci0 command 0x041b tx timeout
Bluetooth: hci0 command 0x040f tx timeout
Bluetooth: hci4 command 0x040f tx timeout
Bluetooth: hci3 command 0x040f tx timeout
Bluetooth: hci5 command 0x040f tx timeout
Bluetooth: hci2 command 0x040f tx timeout
Bluetooth: hci1 command 0x040f tx timeout
Bluetooth: hci1 command 0x0419 tx timeout
Bluetooth: hci2 command 0x0419 tx timeout
Bluetooth: hci5 command 0x0419 tx timeout
Bluetooth: hci3 command 0x0419 tx timeout
Bluetooth: hci0 command 0x0419 tx timeout
Bluetooth: hci4 command 0x0419 tx timeout