bisecting fixing commit since 78d697fc93f98054e36a3ab76dca1a88802ba7be
building syzkaller on b655d91b8cb3b60be16c940d7bf4b192c2624a7b
testing commit 78d697fc93f98054e36a3ab76dca1a88802ba7be with gcc (GCC) 8.4.1 20210217
kernel signature: 55ca4ac3dd9097073a4cc6751e0704fb6d2d1bc12a48b15ebcc199c67fb9be51
all runs: crashed: possible deadlock in uart_write
testing current HEAD 4e68c9b0763ff55eaa69d6e519f07515f1c9037b
testing commit 4e68c9b0763ff55eaa69d6e519f07515f1c9037b with gcc (GCC) 8.4.1 20210217
kernel signature: d2b1c42931730fa4da0c9ae3fe08accc12a4a3a6c21da3886fee5989e5299259
all runs: crashed: unregister_netdevice: waiting for DEV to become free
revisions tested: 2, total time: 27m47.467803647s (build: 18m42.189960946s, test: 8m3.525559136s)
the crash still happens on HEAD
commit msg: Linux 4.14.239
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