BUG: workqueue lockup - pool cpus=0 node=0 flags=0x0 nice=0 stuck for 71s! Showing busy workqueues and worker pools: workqueue events: flags=0x0 pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=1/256 pending: vmpressure_work_fn pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=3/256 pending: check_corruption, vmstat_shepherd, cache_reap workqueue events_long: flags=0x0 pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256 pending: br_fdb_cleanup workqueue events_unbound: flags=0x2 pwq 4: cpus=0-1 flags=0x4 nice=0 active=1/512 in-flight: 3485:call_usermodehelper_exec_work workqueue events_power_efficient: flags=0x80 pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=2/256 pending: neigh_periodic_work, do_cache_clean workqueue mm_percpu_wq: flags=0x8 pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256 pending: drain_local_pages_wq BAR(2956) workqueue writeback: flags=0x4e pwq 4: cpus=0-1 flags=0x4 nice=0 active=1/256 in-flight: 723:wb_workfn pool 4: cpus=0-1 flags=0x4 nice=0 hung=0s workers=13 idle: 18317 11646 13590 3527 17176 29 11663 21 12677 3537 3411 sctp: [Deprecated]: syz-executor2 (pid 15374) Use of struct sctp_assoc_value in delayed_ack socket option. Use struct sctp_sack_info instead nla_parse: 24 callbacks suppressed netlink: 1 bytes leftover after parsing attributes in process `syz-executor6'. Bearer <> rejected, not supported in standalone mode Bearer <> rejected, not supported in standalone mode netlink: 3 bytes leftover after parsing attributes in process `syz-executor1'. netlink: 3 bytes leftover after parsing attributes in process `syz-executor1'. netlink: 1 bytes leftover after parsing attributes in process `syz-executor6'. netlink: 3 bytes leftover after parsing attributes in process `syz-executor1'. RDS: rds_bind could not find a transport for 172.20.3.170, load rds_tcp or rds_rdma? netlink: 3 bytes leftover after parsing attributes in process `syz-executor1'. netlink: 3 bytes leftover after parsing attributes in process `syz-executor1'. netlink: 3 bytes leftover after parsing attributes in process `syz-executor1'. RDS: rds_bind could not find a transport for 172.20.3.170, load rds_tcp or rds_rdma? sctp: [Deprecated]: syz-executor6 (pid 15535) Use of struct sctp_assoc_value in delayed_ack socket option. Use struct sctp_sack_info instead sctp: [Deprecated]: syz-executor6 (pid 15535) Use of struct sctp_assoc_value in delayed_ack socket option. Use struct sctp_sack_info instead netlink: 2 bytes leftover after parsing attributes in process `syz-executor6'. sctp: [Deprecated]: syz-executor5 (pid 15607) Use of struct sctp_assoc_value in delayed_ack socket option. Use struct sctp_sack_info instead sctp: [Deprecated]: syz-executor5 (pid 15622) Use of struct sctp_assoc_value in delayed_ack socket option. Use struct sctp_sack_info instead netlink: 2 bytes leftover after parsing attributes in process `syz-executor6'. selinux_nlmsg_perm: 4 callbacks suppressed SELinux: unrecognized netlink message: protocol=6 nlmsg_type=282 sclass=netlink_xfrm_socket pig=15900 comm=syz-executor7 SELinux: unrecognized netlink message: protocol=6 nlmsg_type=282 sclass=netlink_xfrm_socket pig=15900 comm=syz-executor7 SELinux: unrecognized netlink message: protocol=6 nlmsg_type=65535 sclass=netlink_xfrm_socket pig=15961 comm=syz-executor7 SELinux: unrecognized netlink message: protocol=6 nlmsg_type=65535 sclass=netlink_xfrm_socket pig=15961 comm=syz-executor7 device syz5 entered promiscuous mode device syz5 left promiscuous mode syz2: Invalid MTU 225897 requested, hw max 65535 syz2: Invalid MTU 225897 requested, hw max 65535 SELinux: failure in selinux_parse_skb(), unable to parse packet SELinux: unrecognized netlink message: protocol=4 nlmsg_type=2048 sclass=netlink_tcpdiag_socket pig=16304 comm=syz-executor6 SELinux: unrecognized netlink message: protocol=4 nlmsg_type=2048 sclass=netlink_tcpdiag_socket pig=16304 comm=syz-executor6 device syz3 entered promiscuous mode SELinux: unrecognized netlink message: protocol=0 nlmsg_type=54193 sclass=netlink_route_socket pig=16648 comm=syz-executor1 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=54193 sclass=netlink_route_socket pig=16656 comm=syz-executor1 device syz7 entered promiscuous mode device syz7 left promiscuous mode device øÿÿÿ entered promiscuous mode device øÿÿÿ left promiscuous mode IPv6: RTM_NEWROUTE with no NLM_F_CREATE or NLM_F_REPLACE device øÿÿÿ entered promiscuous mode RDS: rds_bind could not find a transport for 172.20.5.170, load rds_tcp or rds_rdma? device øÿÿÿ left promiscuous mode IPv6: RTM_NEWROUTE with no NLM_F_CREATE or NLM_F_REPLACE RDS: rds_bind could not find a transport for 172.20.5.170, load rds_tcp or rds_rdma? device lo entered promiscuous mode SELinux: unrecognized netlink message: protocol=9 nlmsg_type=24 sclass=netlink_audit_socket pig=16861 comm=syz-executor6 SELinux: unrecognized netlink message: protocol=9 nlmsg_type=24 sclass=netlink_audit_socket pig=16875 comm=syz-executor6 ?: renamed from sit0 device syz2 entered promiscuous mode device syz2 left promiscuous mode device syz2 entered promiscuous mode device syz2 left promiscuous mode device lo entered promiscuous mode nla_parse: 41 callbacks suppressed netlink: 5 bytes leftover after parsing attributes in process `syz-executor2'. netlink: 5 bytes leftover after parsing attributes in process `syz-executor2'. netlink: 5 bytes leftover after parsing attributes in process `syz-executor3'. netlink: 5 bytes leftover after parsing attributes in process `syz-executor3'. netlink: 8 bytes leftover after parsing attributes in process `syz-executor3'.