INFO: rcu_sched detected stalls on CPUs/tasks: 0-...: (0 ticks this GP) idle=b26/140000000000000/0 softirq=30805/30805 fqs=0 (detected by 1, t=125002 jiffies, g=16308, c=16307, q=25) Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 skipped: idling at pc 0xffffffff84d20b76 rcu_sched kthread starved for 125002 jiffies! g16308 c16307 f0x0 RCU_GP_WAIT_FQS(3) ->state=0x402 ->cpu=0 rcu_sched I22144 8 2 0x80000000 Call Trace: context_switch kernel/sched/core.c:2790 [inline] __schedule+0x8eb/0x2060 kernel/sched/core.c:3366 schedule+0xf5/0x430 kernel/sched/core.c:3425 schedule_timeout+0x150/0x250 kernel/time/timer.c:1743 rcu_gp_kthread+0x9e5/0x1930 kernel/rcu/tree.c:2247 kthread+0x35e/0x430 kernel/kthread.c:231 ret_from_fork+0x2a/0x40 arch/x86/entry/entry_64.S:432 netlink: 3 bytes leftover after parsing attributes in process `syz-executor4'. device gre0 entered promiscuous mode netlink: 3 bytes leftover after parsing attributes in process `syz-executor4'. netlink: 17 bytes leftover after parsing attributes in process `syz-executor0'. netlink: 17 bytes leftover after parsing attributes in process `syz-executor0'. netlink: 3 bytes leftover after parsing attributes in process `syz-executor0'. netlink: 3 bytes leftover after parsing attributes in process `syz-executor0'. audit: type=1326 audit(1509844678.535:545): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=kernel pid=9389 comm="syz-executor4" exe="/root/syz-executor4" sig=0 arch=c000003e syscall=202 compat=0 ip=0x452869 code=0x7ffc0000 audit: type=1326 audit(1509844678.559:546): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=kernel pid=9389 comm="syz-executor4" exe="/root/syz-executor4" sig=0 arch=c000003e syscall=43 compat=0 ip=0x452869 code=0x7ffc0000 audit: type=1326 audit(1509844678.559:547): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=kernel pid=9389 comm="syz-executor4" exe="/root/syz-executor4" sig=0 arch=c000003e syscall=202 compat=0 ip=0x452869 code=0x7ffc0000 audit: type=1326 audit(1509844678.559:548): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=kernel pid=9389 comm="syz-executor4" exe="/root/syz-executor4" sig=0 arch=c000003e syscall=202 compat=0 ip=0x452869 code=0x7ffc0000 audit: type=1326 audit(1509844678.561:549): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=kernel pid=9389 comm="syz-executor4" exe="/root/syz-executor4" sig=0 arch=c000003e syscall=55 compat=0 ip=0x452869 code=0x7ffc0000 audit: type=1326 audit(1509844678.561:550): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=kernel pid=9389 comm="syz-executor4" exe="/root/syz-executor4" sig=0 arch=c000003e syscall=202 compat=0 ip=0x452869 code=0x7ffc0000 audit: type=1326 audit(1509844678.561:551): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=kernel pid=9389 comm="syz-executor4" exe="/root/syz-executor4" sig=0 arch=c000003e syscall=202 compat=0 ip=0x452869 code=0x7ffc0000 audit: type=1326 audit(1509844678.562:552): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=kernel pid=9389 comm="syz-executor4" exe="/root/syz-executor4" sig=0 arch=c000003e syscall=298 compat=0 ip=0x452869 code=0x7ffc0000 audit: type=1326 audit(1509844678.562:553): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=kernel pid=9389 comm="syz-executor4" exe="/root/syz-executor4" sig=0 arch=c000003e syscall=202 compat=0 ip=0x452869 code=0x7ffc0000 audit: type=1326 audit(1509844678.562:554): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=kernel pid=9389 comm="syz-executor4" exe="/root/syz-executor4" sig=0 arch=c000003e syscall=202 compat=0 ip=0x452869 code=0x7ffc0000 netlink: 3 bytes leftover after parsing attributes in process `syz-executor2'. QAT: Invalid ioctl netlink: 3 bytes leftover after parsing attributes in process `syz-executor2'. QAT: Invalid ioctl QAT: Invalid ioctl QAT: Invalid ioctl QAT: Invalid ioctl netlink: 13 bytes leftover after parsing attributes in process `syz-executor3'. QAT: Invalid ioctl netlink: 13 bytes leftover after parsing attributes in process `syz-executor3'. QAT: Invalid ioctl QAT: Invalid ioctl SELinux: unrecognized netlink message: protocol=0 nlmsg_type=9908 sclass=netlink_route_socket pig=9564 comm=syz-executor1 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=9908 sclass=netlink_route_socket pig=9564 comm=syz-executor1 QAT: Invalid ioctl QAT: Device 0 not found sctp: [Deprecated]: syz-executor5 (pid 9611) Use of int in maxseg socket option. Use struct sctp_assoc_value instead sctp: [Deprecated]: syz-executor5 (pid 9611) Use of struct sctp_assoc_value in delayed_ack socket option. Use struct sctp_sack_info instead device gre0 entered promiscuous mode QAT: Invalid ioctl sctp: [Deprecated]: syz-executor5 (pid 9621) Use of int in maxseg socket option. Use struct sctp_assoc_value instead sctp: [Deprecated]: syz-executor5 (pid 9621) Use of struct sctp_assoc_value in delayed_ack socket option. Use struct sctp_sack_info instead QAT: Device 0 not found rpcbind: RPC call returned error 22 rpcbind: RPC call returned error 22 tmpfs: No value for mount option ']X%dZV' tmpfs: No value for mount option ']X%dZV' QAT: Invalid ioctl QAT: Invalid ioctl device eql entered promiscuous mode nla_parse: 6 callbacks suppressed netlink: 8 bytes leftover after parsing attributes in process `syz-executor3'. netlink: 8 bytes leftover after parsing attributes in process `syz-executor3'. netlink: 11 bytes leftover after parsing attributes in process `syz-executor6'. netlink: 3 bytes leftover after parsing attributes in process `syz-executor6'. Can not set IPV6_FL_F_REFLECT if flowlabel_consistency sysctl is enable netlink: 11 bytes leftover after parsing attributes in process `syz-executor6'. netlink: 3 bytes leftover after parsing attributes in process `syz-executor6'. Can not set IPV6_FL_F_REFLECT if flowlabel_consistency sysctl is enable tmpfs: Bad mount option q]g4G tmpfs: Bad mount option q]g4G sctp: [Deprecated]: syz-executor3 (pid 10249) Use of int in maxseg socket option. Use struct sctp_assoc_value instead SELinux: unrecognized netlink message: protocol=4 nlmsg_type=24 sclass=netlink_tcpdiag_socket pig=10250 comm=syz-executor4 SELinux: unrecognized netlink message: protocol=4 nlmsg_type=24 sclass=netlink_tcpdiag_socket pig=10250 comm=syz-executor4 xprt_adjust_timeout: rq_timeout = 0! xprt_adjust_timeout: rq_timeout = 0! RDS: rds_bind could not find a transport for 172.20.7.187, load rds_tcp or rds_rdma? RDS: rds_bind could not find a transport for 172.20.7.187, load rds_tcp or rds_rdma? QAT: Invalid ioctl QAT: Invalid ioctl