bisecting fixing commit since 2b79150141611d3c6e1b55d4e70f49602482f0b8
building syzkaller on 8bc4594f832068a30c0eff44d468311780057d1f
testing commit 2b79150141611d3c6e1b55d4e70f49602482f0b8 with gcc (GCC) 8.4.1 20210217
kernel signature: e93801dad06450c368c680f1238d0cde958160913e11cce6b26d54cf3d17fa57
run #0: crashed: WARNING in kill_block_super
run #1: crashed: WARNING in kill_block_super
run #2: crashed: WARNING in kill_block_super
run #3: crashed: WARNING in kill_block_super
run #4: crashed: WARNING in kill_block_super
run #5: crashed: WARNING in kill_block_super
run #6: crashed: WARNING in kill_block_super
run #7: crashed: WARNING in kill_block_super
run #8: crashed: WARNING in corrupted
run #9: crashed: WARNING in corrupted
run #10: crashed: WARNING in kill_block_super
run #11: crashed: WARNING in kill_block_super
run #12: crashed: WARNING in kill_block_super
run #13: crashed: WARNING in corrupted
run #14: crashed: WARNING in corrupted
run #15: crashed: WARNING in corrupted
run #16: crashed: WARNING in kill_block_super
run #17: crashed: WARNING in kill_block_super
run #18: OK
run #19: crashed: WARNING in kill_block_super
testing current HEAD a6b2dae3ee3a3f9f4db3fab5b4b9e493fecf4acd
testing commit a6b2dae3ee3a3f9f4db3fab5b4b9e493fecf4acd with gcc (GCC) 8.4.1 20210217
kernel signature: b60569ee6fb426c9e6cdd113ce8b06564a7ebfebe6db3008182c2ed35013c384
all runs: crashed: unregister_netdevice: waiting for DEV to become free
revisions tested: 2, total time: 35m34.532576516s (build: 20m37.258998166s, test: 14m19.064537023s)
the crash still happens on HEAD
commit msg: Linux 4.14.235
crash: unregister_netdevice: waiting for DEV to become free
Bluetooth: hci2 command 0x0409 tx timeout
Bluetooth: hci4 command 0x0409 tx timeout
Bluetooth: hci0 command 0x0409 tx timeout
Bluetooth: hci3 command 0x0409 tx timeout
Bluetooth: hci1 command 0x0409 tx timeout
unregister_netdevice: waiting for ip6gre0 to become free. Usage count = -1
Bluetooth: hci1 command 0x041b tx timeout
Bluetooth: hci3 command 0x041b tx timeout
Bluetooth: hci0 command 0x041b tx timeout
Bluetooth: hci4 command 0x041b tx timeout
Bluetooth: hci5 command 0x041b tx timeout
Bluetooth: hci2 command 0x041b tx timeout
Bluetooth: hci2 command 0x040f tx timeout
Bluetooth: hci5 command 0x040f tx timeout
Bluetooth: hci4 command 0x040f tx timeout
Bluetooth: hci0 command 0x040f tx timeout
Bluetooth: hci3 command 0x040f tx timeout
Bluetooth: hci1 command 0x040f tx timeout
Bluetooth: hci1 command 0x0419 tx timeout
Bluetooth: hci3 command 0x0419 tx timeout
Bluetooth: hci0 command 0x0419 tx timeout
Bluetooth: hci4 command 0x0419 tx timeout
Bluetooth: hci5 command 0x0419 tx timeout
Bluetooth: hci2 command 0x0419 tx timeout