bisecting fixing commit since 414510bc00a5fc954d8340c170083f518d09aa55
building syzkaller on a60cb4cd840ce786236a00480e8bb1025e0c5fef
testing commit 414510bc00a5fc954d8340c170083f518d09aa55
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 5dc0f4391d1614c7cd0c320094f054e8c027bed210c53960afe66d96bcdde368
run #0: crashed: kernel BUG in rxrpc_disconnect_client_call
run #1: crashed: BUG: unable to handle kernel NULL pointer dereference in rxrpc_send_data_packet
run #2: crashed: BUG: unable to handle kernel NULL pointer dereference in rxrpc_send_data_packet
run #3: crashed: BUG: unable to handle kernel NULL pointer dereference in rxrpc_send_data_packet
run #4: crashed: kernel BUG in rxrpc_destroy_all_locals
run #5: crashed: kernel BUG in rxrpc_destroy_all_locals
run #6: crashed: kernel BUG in rxrpc_destroy_all_locals
run #7: crashed: kernel BUG in rxrpc_destroy_all_locals
run #8: crashed: kernel BUG in rxrpc_destroy_all_locals
run #9: crashed: kernel BUG in rxrpc_destroy_all_locals
run #10: crashed: kernel BUG in rxrpc_destroy_all_locals
run #11: crashed: kernel BUG in rxrpc_destroy_all_locals
run #12: crashed: kernel BUG in rxrpc_destroy_all_locals
run #13: crashed: kernel BUG in rxrpc_destroy_all_locals
run #14: crashed: kernel BUG in rxrpc_destroy_all_locals
run #15: crashed: kernel BUG in rxrpc_destroy_all_locals
run #16: crashed: kernel BUG in rxrpc_destroy_all_locals
run #17: crashed: kernel BUG in rxrpc_destroy_all_locals
run #18: crashed: kernel BUG in rxrpc_destroy_all_locals
run #19: crashed: kernel BUG in rxrpc_destroy_all_locals
testing current HEAD ed99bf0e81b558df39f7db2fa96d0228be4198c6
testing commit ed99bf0e81b558df39f7db2fa96d0228be4198c6
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: f63fc399b4de24c0bbd0747941d093357555ae063f520f3f510e4f23daf654c8
all runs: crashed: unregister_netdevice: waiting for DEV to become free
revisions tested: 2, total time: 32m21.088925558s (build: 18m36.168697162s, test: 12m31.112715833s)
the crash still happens on HEAD
commit msg: Linux 4.14.250
crash: unregister_netdevice: waiting for DEV to become free
unregister_netdevice: waiting for ip6gre0 to become free. Usage count = -1