bisecting fixing commit since 7d7d1c0ab3eb7c8d8f63a126535018007823b207
building syzkaller on 77e2b66864e69c17416614228723a1ebd3581ddc
testing commit 7d7d1c0ab3eb7c8d8f63a126535018007823b207
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 2cc816e78940b6eb1255392aadf5bc55e2a6b8f3c2feb1339515989562521bfc
run #0: crashed: kernel BUG in ext4_mb_load_buddy_gfp
run #1: crashed: kernel BUG in ext4_mb_load_buddy_gfp
run #2: crashed: kernel BUG in ext4_mb_load_buddy_gfp
run #3: crashed: kernel BUG in corrupted
run #4: crashed: kernel BUG in ext4_mb_load_buddy_gfp
run #5: crashed: kernel BUG in corrupted
run #6: crashed: kernel BUG in ext4_mb_load_buddy_gfp
run #7: crashed: kernel BUG in corrupted
run #8: crashed: kernel BUG in ext4_mb_load_buddy_gfp
run #9: crashed: kernel BUG in ext4_mb_load_buddy_gfp
run #10: crashed: kernel BUG in ext4_mb_load_buddy_gfp
run #11: crashed: kernel BUG in ext4_mb_load_buddy_gfp
run #12: crashed: kernel BUG in ext4_mb_load_buddy_gfp
run #13: crashed: kernel BUG in ext4_mb_load_buddy_gfp
run #14: crashed: kernel BUG in ext4_mb_load_buddy_gfp
run #15: crashed: kernel BUG in ext4_mb_load_buddy_gfp
run #16: crashed: kernel BUG in ext4_mb_load_buddy_gfp
run #17: crashed: kernel BUG in ext4_mb_load_buddy_gfp
run #18: crashed: kernel BUG in corrupted
run #19: crashed: kernel BUG in ext4_mb_load_buddy_gfp
testing current HEAD cd529693461026636f76d0395a42cb2439bbd368
testing commit cd529693461026636f76d0395a42cb2439bbd368
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 44bdfb623de25e49a6aa96ab7d3274699f622fb74ed74955fa50cc878a38725c
all runs: crashed: unregister_netdevice: waiting for DEV to become free
revisions tested: 2, total time: 21m32.242035242s (build: 14m41.933045096s, test: 6m29.026448408s)
the crash still happens on HEAD
commit msg: Linux 4.14.253
crash: unregister_netdevice: waiting for DEV to become free
can: request_module (can-proto-0) failed.
can: request_module (can-proto-0) failed.
unregister_netdevice: waiting for ip6gre0 to become free. Usage count = -1
Bluetooth: hci5 command 0x0409 tx timeout
Bluetooth: hci2 command 0x0409 tx timeout
Bluetooth: hci1 command 0x0409 tx timeout
Bluetooth: hci4 command 0x0409 tx timeout
Bluetooth: hci0 command 0x0409 tx timeout
Bluetooth: hci3 command 0x0409 tx timeout
Bluetooth: hci3 command 0x041b tx timeout
Bluetooth: hci0 command 0x041b tx timeout
Bluetooth: hci4 command 0x041b tx timeout
Bluetooth: hci1 command 0x041b tx timeout
Bluetooth: hci2 command 0x041b tx timeout
Bluetooth: hci5 command 0x041b tx timeout
Bluetooth: hci5 command 0x040f tx timeout
Bluetooth: hci2 command 0x040f tx timeout
Bluetooth: hci1 command 0x040f tx timeout
Bluetooth: hci4 command 0x040f tx timeout
Bluetooth: hci0 command 0x040f tx timeout
Bluetooth: hci3 command 0x040f tx timeout
Bluetooth: hci3 command 0x0419 tx timeout
Bluetooth: hci0 command 0x0419 tx timeout
Bluetooth: hci4 command 0x0419 tx timeout
Bluetooth: hci1 command 0x0419 tx timeout
Bluetooth: hci2 command 0x0419 tx timeout
Bluetooth: hci5 command 0x0419 tx timeout