bisecting fixing commit since 1752938529c614a8ed4432ecce6ebc95d3b87207
building syzkaller on b1c228e1773559f05fa98950902ab025d6ab946e
testing commit 1752938529c614a8ed4432ecce6ebc95d3b87207 with gcc (GCC) 8.4.1 20210217
kernel signature: 46b052b0a9592c285319bc0004b0fbc0d75f16063a00fedd8480639800f29104
run #0: crashed: kernel BUG in ipgre_xmit
run #1: crashed: kernel BUG in ipgre_xmit
run #2: crashed: kernel BUG in ipgre_xmit
run #3: crashed: kernel BUG in ipgre_xmit
run #4: crashed: kernel BUG in ipgre_xmit
run #5: crashed: kernel BUG in ipgre_xmit
run #6: crashed: kernel BUG in ipgre_xmit
run #7: crashed: kernel BUG in ipgre_xmit
run #8: crashed: kernel BUG in corrupted
run #9: crashed: kernel BUG in ipgre_xmit
run #10: crashed: kernel BUG in ipgre_xmit
run #11: crashed: kernel BUG in ipgre_xmit
run #12: crashed: kernel BUG in ipgre_xmit
run #13: crashed: kernel BUG in ipgre_xmit
run #14: crashed: kernel BUG in ipgre_xmit
run #15: crashed: kernel BUG in ipgre_xmit
run #16: crashed: kernel BUG in ipgre_xmit
run #17: crashed: kernel BUG in ipgre_xmit
run #18: crashed: kernel BUG in ipgre_xmit
run #19: crashed: kernel BUG in ipgre_xmit
testing current HEAD cfb41ef9deb1e6572ac218ddfcec9567e5d1c101
testing commit cfb41ef9deb1e6572ac218ddfcec9567e5d1c101 with gcc (GCC) 8.4.1 20210217
kernel signature: 3932e3395a703f9025b69fa9e7488f357f5d95bad22d8485260a93090dcc874f
all runs: crashed: unregister_netdevice: waiting for DEV to become free
revisions tested: 2, total time: 26m58.911583374s (build: 20m9.042317746s, test: 6m23.098845605s)
the crash still happens on HEAD
commit msg: Linux 4.14.237
crash: unregister_netdevice: waiting for DEV to become free
Bluetooth: hci2 command 0x0409 tx timeout
Bluetooth: hci1 command 0x0409 tx timeout
Bluetooth: hci0 command 0x0409 tx timeout
Bluetooth: hci4 command 0x0409 tx timeout
Bluetooth: hci3 command 0x0409 tx timeout
unregister_netdevice: waiting for ip6gre0 to become free. Usage count = -1
Bluetooth: hci2 command 0x041b tx timeout
Bluetooth: hci5 command 0x041b tx timeout
Bluetooth: hci1 command 0x041b tx timeout
Bluetooth: hci3 command 0x041b tx timeout
Bluetooth: hci4 command 0x041b tx timeout
Bluetooth: hci0 command 0x041b tx timeout
Bluetooth: hci5 command 0x040f tx timeout
Bluetooth: hci2 command 0x040f tx timeout
Bluetooth: hci0 command 0x040f tx timeout
Bluetooth: hci4 command 0x040f tx timeout
Bluetooth: hci3 command 0x040f tx timeout
Bluetooth: hci1 command 0x040f tx timeout
Bluetooth: hci2 command 0x0419 tx timeout
Bluetooth: hci5 command 0x0419 tx timeout
Bluetooth: hci1 command 0x0419 tx timeout
Bluetooth: hci3 command 0x0419 tx timeout
Bluetooth: hci4 command 0x0419 tx timeout
Bluetooth: hci0 command 0x0419 tx timeout