bisecting fixing commit since 69b94dd6dcd14d9bfcba35a492f5e27c15cf4d0a
building syzkaller on 70c104a18f3d409bc6dde950b50258d3d280d99b
testing commit 69b94dd6dcd14d9bfcba35a492f5e27c15cf4d0a
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: ab26c1383a5c423a093507fb6af2b68d25213d2a66771cf83a23f1b7a14c4345
run #0: crashed: BUG: unable to handle kernel paging request in __alloc_skb
run #1: crashed: BUG: unable to handle kernel paging request in __alloc_skb
run #2: crashed: BUG: soft lockup in batadv_iv_send_outstanding_bat_ogm_packet
run #3: crashed: BUG: soft lockup in batadv_iv_send_outstanding_bat_ogm_packet
run #4: crashed: BUG: soft lockup in batadv_iv_send_outstanding_bat_ogm_packet
run #5: crashed: BUG: soft lockup in batadv_iv_send_outstanding_bat_ogm_packet
run #6: crashed: BUG: soft lockup in batadv_iv_send_outstanding_bat_ogm_packet
run #7: crashed: INFO: rcu detected stall in corrupted
run #8: crashed: INFO: rcu detected stall in corrupted
run #9: crashed: INFO: rcu detected stall in rtnl_newlink
run #10: crashed: INFO: rcu detected stall in corrupted
run #11: crashed: INFO: rcu detected stall in corrupted
run #12: crashed: INFO: rcu detected stall in rtnl_newlink
run #13: crashed: INFO: rcu detected stall in rtnl_newlink
run #14: crashed: INFO: rcu detected stall in corrupted
run #15: crashed: INFO: rcu detected stall in rtnl_newlink
run #16: crashed: INFO: rcu detected stall in corrupted
run #17: crashed: INFO: rcu detected stall in rtnl_newlink
run #18: crashed: INFO: rcu detected stall in rtnl_newlink
run #19: crashed: INFO: rcu detected stall in rtnl_newlink
testing current HEAD 8ea4f73cfa7e0555dc03aedde52db54a6587ab43
testing commit 8ea4f73cfa7e0555dc03aedde52db54a6587ab43
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 8ddc8b379eba001db441cdf6db6b01b436c2c3edce968ccdb8361512f487ce9c
all runs: crashed: unregister_netdevice: waiting for DEV to become free
revisions tested: 2, total time: 30m50.192557511s (build: 21m56.542243284s, test: 8m2.269101175s)
the crash still happens on HEAD
commit msg: Linux 4.14.247
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