bisecting fixing commit since 7d7d1c0ab3eb7c8d8f63a126535018007823b207
building syzkaller on ad61f3714f0a5e8f7ce062d54f310df1f5e0d351
testing commit 7d7d1c0ab3eb7c8d8f63a126535018007823b207
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 8acf439207834e9c0c798908f36a11d3e4599fdcdeb265f1d9cd771e027e00e3
run #0: crashed: SYZFAIL: mmap of input file failed
run #1: crashed: SYZFAIL: mmap of input file failed
run #2: crashed: SYZFAIL: mmap of input file failed
run #3: crashed: SYZFAIL: mmap of input file failed
run #4: crashed: SYZFAIL: mmap of input file failed
run #5: crashed: SYZFAIL: mmap of input file failed
run #6: crashed: SYZFAIL: mmap of input file failed
run #7: crashed: SYZFAIL: mmap of input file failed
run #8: crashed: SYZFAIL: mmap of input file failed
run #9: crashed: SYZFAIL: mmap of input file failed
run #10: crashed: SYZFAIL: mmap of input file failed
run #11: crashed: SYZFAIL: mmap of input file failed
run #12: crashed: SYZFAIL: mmap of input file failed
run #13: crashed: SYZFAIL: mmap of input file failed
run #14: crashed: SYZFAIL: mmap of input file failed
run #15: crashed: SYZFAIL: mmap of input file failed
run #16: crashed: SYZFAIL: mmap of input file failed
run #17: OK
run #18: OK
run #19: OK
testing current HEAD 84bae26850e3b384a45f0f9a5f8b3b5983afacd8
testing commit 84bae26850e3b384a45f0f9a5f8b3b5983afacd8
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 1c9f5d337f2c7ceddd1436ac5ddec1e5008099b4e4c0d3ab0924a47c12bff49d
all runs: crashed: unregister_netdevice: waiting for DEV to become free
revisions tested: 2, total time: 26m12.462556269s (build: 13m53.823588785s, test: 11m55.181907141s)
the crash still happens on HEAD
commit msg: Linux 4.14.284
crash: unregister_netdevice: waiting for DEV to become free
Bluetooth: hci0 command 0x0409 tx timeout
unregister_netdevice: waiting for ip6gre0 to become free. Usage count = -1
Bluetooth: hci0 command 0x041b tx timeout
Bluetooth: hci0 command 0x040f tx timeout
Bluetooth: hci0 command 0x0419 tx timeout