ci starts bisection 2023-05-30 22:49:37.620942758 +0000 UTC m=+10352.418221052 bisecting fixing commit since 952923ddc01120190dcf671e7b354364ce1d1362 building syzkaller on c885789257c76ea4479ea36282f5e0a2c7861e26 ensuring issue is reproducible on original commit 952923ddc01120190dcf671e7b354364ce1d1362 testing commit 952923ddc01120190dcf671e7b354364ce1d1362 gcc compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: 4ed4dfc41463796d2845ac84bbdb44b422ce730ced76adee9e05798f24ae23c9 run #0: crashed: WARNING in blk_register_tracepoints run #1: crashed: WARNING in blk_register_tracepoints run #2: crashed: WARNING in blk_register_tracepoints run #3: crashed: WARNING in blk_register_tracepoints run #4: crashed: WARNING in blk_register_tracepoints run #5: crashed: WARNING in blk_register_tracepoints run #6: crashed: WARNING in blk_register_tracepoints run #7: crashed: WARNING in blk_register_tracepoints run #8: crashed: WARNING in blk_register_tracepoints run #9: crashed: WARNING in blk_register_tracepoints run #10: boot failed: INFO: task hung in add_early_randomness run #11: boot failed: INFO: task hung in add_early_randomness run #12: boot failed: INFO: task hung in add_early_randomness run #13: boot failed: INFO: task hung in add_early_randomness run #14: boot failed: INFO: task hung in add_early_randomness run #15: boot failed: INFO: task hung in add_early_randomness run #16: boot failed: INFO: task hung in add_early_randomness run #17: boot failed: INFO: task hung in add_early_randomness run #18: OK run #19: OK testing current HEAD 48b1320a674e1ff5de2fad8606bee38f724594dc testing commit 48b1320a674e1ff5de2fad8606bee38f724594dc gcc compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: 54ab2d3e61062a37e3916a9392e665a3f2309cab5d5135f9d42bab67304016c1 run #0: crashed: WARNING in blk_register_tracepoints run #1: crashed: WARNING in blk_register_tracepoints run #2: crashed: WARNING in blk_register_tracepoints run #3: crashed: WARNING in blk_register_tracepoints run #4: crashed: WARNING in blk_register_tracepoints run #5: crashed: WARNING in blk_register_tracepoints run #6: crashed: WARNING in blk_register_tracepoints run #7: crashed: unregister_netdevice: waiting for DEV to become free run #8: crashed: unregister_netdevice: waiting for DEV to become free run #9: crashed: unregister_netdevice: waiting for DEV to become free crash still not fixed/happens on the oldest tested release revisions tested: 2, total time: 36m48.170902334s (build: 13m3.734714724s, test: 22m34.305810083s) crash still not fixed on HEAD or HEAD had kernel test errors commit msg: Merge tag 'for-6.4-rc4-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux crash: unregister_netdevice: waiting for DEV to become free unregister_netdevice: waiting for syz_tun to become free. Usage count = 2 leaked reference. __netdev_tracker_alloc include/linux/netdevice.h:4070 [inline] netdev_tracker_alloc include/linux/netdevice.h:4082 [inline] fib6_nh_init+0x4ad/0x18c0 net/ipv6/route.c:3613 ip6_route_info_create+0xe9a/0x1830 net/ipv6/route.c:3791 ip6_route_add+0x13/0xf0 net/ipv6/route.c:3835 addrconf_prefix_route+0x299/0x410 net/ipv6/addrconf.c:2425 fixup_permanent_addr net/ipv6/addrconf.c:3500 [inline] addrconf_permanent_addr net/ipv6/addrconf.c:3524 [inline] addrconf_notify+0xc33/0x12d0 net/ipv6/addrconf.c:3596 notifier_call_chain+0x94/0x2a0 kernel/notifier.c:93 call_netdevice_notifiers_extack net/core/dev.c:1973 [inline] call_netdevice_notifiers net/core/dev.c:1987 [inline] __dev_notify_flags+0xd0/0x240 net/core/dev.c:8605 dev_change_flags+0xf5/0x160 net/core/dev.c:8643 do_setlink+0x873/0x3050 net/core/rtnetlink.c:2836 __rtnl_newlink+0x94d/0x1520 net/core/rtnetlink.c:3626 rtnl_newlink+0x5a/0x90 net/core/rtnetlink.c:3673 rtnetlink_rcv_msg+0x32d/0x9f0 net/core/rtnetlink.c:6395 netlink_rcv_skb+0x126/0x380 net/netlink/af_netlink.c:2546 netlink_unicast_kernel net/netlink/af_netlink.c:1339 [inline] netlink_unicast+0x433/0x710 net/netlink/af_netlink.c:1365 netlink_sendmsg+0x78c/0xc40 net/netlink/af_netlink.c:1913 sock_sendmsg_nosec net/socket.c:724 [inline] sock_sendmsg+0xbc/0x150 net/socket.c:747