bisecting fixing commit since 7d7d1c0ab3eb7c8d8f63a126535018007823b207
building syzkaller on bc5434be1a615eca6d901c20b026712bd9697fd4
testing commit 7d7d1c0ab3eb7c8d8f63a126535018007823b207 with gcc (GCC) 8.4.1 20210217
kernel signature: 6afcd467caec4d00916856d21377bb4a92fcb68e9a12ef407b6fca903e12695d
run #0: OK
run #1: OK
run #2: crashed: SYZFAIL: failed to mkdtemp
run #3: OK
run #4: crashed: SYZFAIL: failed to mkdtemp
run #5: OK
run #6: OK
run #7: OK
run #8: crashed: SYZFAIL: failed to mkdtemp
run #9: OK
run #10: OK
run #11: OK
run #12: crashed: SYZFAIL: failed to mkdtemp
run #13: OK
run #14: OK
run #15: OK
run #16: OK
run #17: OK
run #18: crashed: SYZFAIL: failed to mkdir
run #19: crashed: SYZFAIL: failed to mkdir
reproducer seems to be flaky
testing current HEAD 3d3abdc8ebd3c3082e4398fc73ceb4c852b66e85
testing commit 3d3abdc8ebd3c3082e4398fc73ceb4c852b66e85 with gcc (GCC) 8.4.1 20210217
kernel signature: f8b3208a931326d7f8d904f6603ea9edeab4b02c9649226f588061dfa3d0e5c1
all runs: crashed: unregister_netdevice: waiting for DEV to become free
Reproducer flagged being flaky
revisions tested: 2, total time: 28m29.98467537s (build: 20m34.44747805s, test: 7m9.907947124s)
the crash still happens on HEAD
commit msg: Linux 4.14.236
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: hci5 command 0x0409 tx timeout
Bluetooth: hci0 command 0x0409 tx timeout
Bluetooth: hci2 command 0x0409 tx timeout
Bluetooth: hci3 command 0x0409 tx timeout
Bluetooth: hci4 command 0x0409 tx timeout
Bluetooth: hci0 command 0x041b tx timeout
Bluetooth: hci5 command 0x041b tx timeout
Bluetooth: hci1 command 0x041b tx timeout
Bluetooth: hci4 command 0x041b tx timeout
Bluetooth: hci3 command 0x041b tx timeout
Bluetooth: hci2 command 0x041b tx timeout
Bluetooth: hci1 command 0x040f tx timeout
Bluetooth: hci5 command 0x040f tx timeout
Bluetooth: hci0 command 0x040f tx timeout
Bluetooth: hci2 command 0x040f tx timeout
Bluetooth: hci3 command 0x040f tx timeout
Bluetooth: hci4 command 0x040f tx timeout
Bluetooth: hci0 command 0x0419 tx timeout
Bluetooth: hci5 command 0x0419 tx timeout
Bluetooth: hci1 command 0x0419 tx timeout
Bluetooth: hci4 command 0x0419 tx timeout
Bluetooth: hci3 command 0x0419 tx timeout
Bluetooth: hci2 command 0x0419 tx timeout