bisecting fixing commit since b850307b279cbd12ab8c654d1a3dfe55319cc475
building syzkaller on f30c14bfec4b49e528a756b28cc010925e2f286b
testing commit b850307b279cbd12ab8c654d1a3dfe55319cc475 with gcc (GCC) 8.4.1 20210217
kernel signature: 07168b4954b37f109c6d40f8cecd0b3d498e2776c47e881dc757b143bd8ba0be
all runs: crashed: possible deadlock in do_io_accounting
testing current HEAD cfb41ef9deb1e6572ac218ddfcec9567e5d1c101
testing commit cfb41ef9deb1e6572ac218ddfcec9567e5d1c101 with gcc (GCC) 8.4.1 20210217
kernel signature: 526991b84a0122d891a2d2a4e377a0c29c55b883d8dab3486d7d2b50f99f806a
all runs: crashed: unregister_netdevice: waiting for DEV to become free
revisions tested: 2, total time: 23m30.368746448s (build: 16m34.708487464s, test: 6m31.00585388s)
the crash still happens on HEAD
commit msg: Linux 4.14.237
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