[ 41.496751][ T26] audit: type=1800 audit(1575374678.803:27): pid=7957 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 res=0 [ 41.522656][ T26] audit: type=1800 audit(1575374678.813:28): pid=7957 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="ssh" dev="sda1" ino=2417 res=0 [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. [ 42.224982][ T26] audit: type=1800 audit(1575374679.603:29): pid=7957 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="rc.local" dev="sda1" ino=2432 res=0 [ 42.244855][ T26] audit: type=1800 audit(1575374679.603:30): pid=7957 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="rmnologin" dev="sda1" ino=2423 res=0 Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.1.14' (ECDSA) to the list of known hosts. 2019/12/03 12:04:49 fuzzer started 2019/12/03 12:04:51 dialing manager at 10.128.0.26:45711 2019/12/03 12:04:51 syscalls: 2689 2019/12/03 12:04:51 code coverage: enabled 2019/12/03 12:04:51 comparison tracing: enabled 2019/12/03 12:04:51 extra coverage: extra coverage is not supported by the kernel 2019/12/03 12:04:51 setuid sandbox: enabled 2019/12/03 12:04:51 namespace sandbox: enabled 2019/12/03 12:04:51 Android sandbox: /sys/fs/selinux/policy does not exist 2019/12/03 12:04:51 fault injection: enabled 2019/12/03 12:04:51 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2019/12/03 12:04:51 net packet injection: enabled 2019/12/03 12:04:51 net device setup: enabled 2019/12/03 12:04:51 concurrency sanitizer: /sys/kernel/debug/kcsan does not exist 2019/12/03 12:04:51 devlink PCI setup: PCI device 0000:00:10.0 is not available 12:04:52 executing program 0: r0 = socket$inet6_sctp(0xa, 0x801, 0x84) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r0, 0x84, 0x64, &(0x7f0000cf6fe4)=[@in6={0xa, 0x4e23, 0x0, @loopback}], 0x1c) connect$inet6(r0, &(0x7f0000000080)={0xa, 0x4e23, 0x0, @loopback}, 0x1c) getsockopt$inet_sctp6_SCTP_PR_ASSOC_STATUS(r0, 0x84, 0x74, &(0x7f00000005c0)={0x0, 0x100, 0x30}, &(0x7f0000000600)=0x18) 12:04:52 executing program 1: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x4000000000000001, 0x0) setsockopt$inet_tcp_int(r0, 0x6, 0x0, &(0x7f00000000c0), 0x25d) bind$inet(r0, &(0x7f0000000040)={0x2, 0x4e23, @multicast2}, 0x10) openat$audio(0xffffffffffffff9c, &(0x7f0000000000)='/dev/audio\x00', 0x1000, 0x0) setsockopt$inet_tcp_TCP_CONGESTION(r0, 0x6, 0xd, &(0x7f0000000200)='scalable\x00', 0x300) sendto$inet(r0, 0x0, 0x0, 0x210007fd, &(0x7f0000e68000)={0x2, 0x4e23, @local}, 0x10) sendto$inet(r0, &(0x7f00000012c0)="03268a927f1f6587b967483041ba7860f46ef65ac618ded8974895abeaf4b4834ff922b3f1", 0x25, 0x2, 0x0, 0x0) syzkaller login: [ 55.337206][ T8120] IPVS: ftp: loaded support on port[0] = 21 [ 55.506591][ T8120] chnl_net:caif_netlink_parms(): no params data found [ 55.523135][ T8123] IPVS: ftp: loaded support on port[0] = 21 12:04:52 executing program 2: setsockopt$inet_mreqn(0xffffffffffffffff, 0x0, 0x27, 0x0, 0x0) openat$nullb(0xffffffffffffff9c, &(0x7f0000000080)='/dev/nullb0\x00', 0x4000000004002, 0x0) r0 = openat$proc_capi20(0xffffffffffffff9c, &(0x7f0000000000)='/proc/capi/capi20\x00', 0x0, 0x0) getsockname$packet(r0, &(0x7f0000000040)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000100)=0x14) mmap(&(0x7f0000000000/0xe7e000)=nil, 0xe7e000, 0x200000e, 0x148110, r0, 0x0) write$P9_RXATTRWALK(r0, &(0x7f0000000140)={0xf, 0x1f, 0x2, 0x5}, 0xf) shmget(0x2, 0x1000, 0x1c, &(0x7f000096d000/0x1000)=nil) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41bf, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x2) r1 = syz_open_dev$admmidi(&(0x7f00000015c0)='/dev/admmidi#\x00', 0x8, 0x0) ioctl$MON_IOCG_STATS(r1, 0x80089203, &(0x7f00000003c0)) socket$inet_udplite(0x2, 0x2, 0x88) openat$dlm_control(0xffffffffffffff9c, &(0x7f00000000c0)='/dev/dlm-control\x00', 0x400000, 0x0) r2 = shmget$private(0x0, 0x4000, 0x0, &(0x7f0000ffc000/0x4000)=nil) shmat(r2, &(0x7f0000ffc000/0x4000)=nil, 0x6000) clone(0x4000000000003fe, 0x0, 0xfffffffffffffffe, 0x0, 0xffffffffffffffff) msync(&(0x7f0000952000/0x2000)=nil, 0x87abbe8d1cc6ad9, 0x4) bind$inet(0xffffffffffffffff, 0x0, 0x0) r3 = socket$inet6(0xa, 0x400000000001, 0x0) close(r3) dup3(0xffffffffffffffff, 0xffffffffffffffff, 0x0) r4 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000280)='hugetl\x04\x00\x00\x00\x00\x00\x00\x00age_ir_Z\xa2\xf4es\x00', 0x275a, 0x0) ioctl$DRM_IOCTL_MODE_GETPLANERESOURCES(r4, 0xc01064b5, &(0x7f00000001c0)={&(0x7f0000000180)=[0x0, 0x0, 0x0, 0x0], 0x4}) keyctl$search(0xa, 0x0, &(0x7f0000000580)='syzkaller\x00', &(0x7f00000005c0)={'syz', 0x1}, 0x0) ioctl$LOOP_CTL_REMOVE(0xffffffffffffffff, 0x4c81, 0x0) sendmsg$alg(0xffffffffffffffff, &(0x7f0000000480)={0x0, 0x0, &(0x7f0000000400)=[{0x0}], 0x1, &(0x7f0000000440)=[@op={0x18, 0x117, 0x3, 0x8e940b1939d64e34}, @assoc={0x18}], 0x30, 0x40000008}, 0x80) openat$ptmx(0xffffffffffffff9c, &(0x7f00000013c0)='/dev/ptmx\x00', 0x0, 0x0) ioctl$TIOCSETD(0xffffffffffffffff, 0x5423, &(0x7f00000000c0)=0x3) ioctl$TCSETSF(0xffffffffffffffff, 0x5404, &(0x7f0000000040)) ioctl$TIOCMBIS(0xffffffffffffffff, 0x5416, &(0x7f0000000200)=0x3) [ 55.583650][ T8120] bridge0: port 1(bridge_slave_0) entered blocking state [ 55.592672][ T8120] bridge0: port 1(bridge_slave_0) entered disabled state [ 55.607698][ T8120] device bridge_slave_0 entered promiscuous mode [ 55.626480][ T8120] bridge0: port 2(bridge_slave_1) entered blocking state [ 55.650942][ T8120] bridge0: port 2(bridge_slave_1) entered disabled state [ 55.660761][ T8120] device bridge_slave_1 entered promiscuous mode [ 55.711282][ T8120] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 55.732016][ T8120] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 55.781319][ T8120] team0: Port device team_slave_0 added [ 55.789289][ T8120] team0: Port device team_slave_1 added 12:04:53 executing program 3: r0 = socket$inet(0x2, 0x4000020000000001, 0x0) bind$inet(r0, &(0x7f0000000200)={0x2, 0x4e23, @dev}, 0x10) sendto$inet(r0, 0x0, 0xfffffffffffffc6d, 0x20000800, &(0x7f0000000240)={0x2, 0x4e23, @local}, 0x10) setsockopt$inet_opts(r0, 0x0, 0x4, &(0x7f00000000c0)="0204", 0x2) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000000c0)={0xffffffffffffffff}) r2 = dup(r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) setsockopt$inet_mtu(r0, 0x0, 0xa, 0x0, 0x0) setsockopt$SO_BINDTODEVICE(r0, 0x1, 0x19, &(0x7f00000001c0)='ip6_vti0\x00', 0x1000001d0) sendto$inet(r0, &(0x7f0000000000), 0xfffffffffffffccf, 0x0, 0x0, 0xffffffffffffff37) [ 55.848008][ T8125] IPVS: ftp: loaded support on port[0] = 21 [ 55.864656][ T8120] device hsr_slave_0 entered promiscuous mode [ 55.921995][ T8120] device hsr_slave_1 entered promiscuous mode [ 55.984489][ T8123] chnl_net:caif_netlink_parms(): no params data found [ 56.005936][ T8128] IPVS: ftp: loaded support on port[0] = 21 [ 56.087404][ T8123] bridge0: port 1(bridge_slave_0) entered blocking state [ 56.096187][ T8123] bridge0: port 1(bridge_slave_0) entered disabled state [ 56.106259][ T8123] device bridge_slave_0 entered promiscuous mode [ 56.124464][ T8123] bridge0: port 2(bridge_slave_1) entered blocking state 12:04:53 executing program 4: r0 = socket(0x10, 0x2, 0x0) socketpair$unix(0x1, 0x8000000000005, 0x0, &(0x7f0000000040)={0xffffffffffffffff, 0xffffffffffffffff}) r3 = dup3(r1, r2, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(r3, 0x8912, 0x400200) write(r0, &(0x7f0000000080)="1c0000001a009b8a14000000ff0000ad3db6876f5fda8d974af87e28", 0x1c) [ 56.132874][ T8123] bridge0: port 2(bridge_slave_1) entered disabled state [ 56.140984][ T8123] device bridge_slave_1 entered promiscuous mode [ 56.155357][ T8120] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 56.222102][ T8120] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 56.275626][ T8120] netdevsim netdevsim0 netdevsim2: renamed from eth2 12:04:53 executing program 5: r0 = socket$kcm(0xa, 0x2, 0x11) setsockopt$sock_attach_bpf(r0, 0x88, 0x67, &(0x7f0000000040)=r0, 0x4) sendmsg$kcm(r0, &(0x7f0000000480)={&(0x7f0000000080)=@in6={0xa, 0x4e25, 0x0, @mcast2={0xff, 0x2, [0xe803, 0x7fffef55]}, 0x6}, 0xbbac, &(0x7f0000000340), 0x2b, &(0x7f0000000180)}, 0x0) [ 56.389651][ T8120] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 56.468026][ T8120] bridge0: port 2(bridge_slave_1) entered blocking state [ 56.475186][ T8120] bridge0: port 2(bridge_slave_1) entered forwarding state [ 56.483038][ T8120] bridge0: port 1(bridge_slave_0) entered blocking state [ 56.490135][ T8120] bridge0: port 1(bridge_slave_0) entered forwarding state [ 56.518231][ T8131] IPVS: ftp: loaded support on port[0] = 21 [ 56.529803][ T8123] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 56.562920][ T8133] IPVS: ftp: loaded support on port[0] = 21 [ 56.574506][ T8120] 8021q: adding VLAN 0 to HW filter on device bond0 [ 56.583468][ T12] bridge0: port 1(bridge_slave_0) entered disabled state [ 56.602703][ T12] bridge0: port 2(bridge_slave_1) entered disabled state [ 56.612249][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 56.637793][ T8123] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 56.692285][ T8120] 8021q: adding VLAN 0 to HW filter on device team0 [ 56.701716][ T8125] chnl_net:caif_netlink_parms(): no params data found [ 56.716181][ T8129] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 56.724748][ T8129] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 56.750866][ T8123] team0: Port device team_slave_0 added [ 56.787072][ T8123] team0: Port device team_slave_1 added [ 56.803975][ T3208] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 56.812680][ T3208] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 56.821257][ T3208] bridge0: port 1(bridge_slave_0) entered blocking state [ 56.828301][ T3208] bridge0: port 1(bridge_slave_0) entered forwarding state [ 56.835919][ T3208] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 56.844446][ T3208] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 56.852946][ T3208] bridge0: port 2(bridge_slave_1) entered blocking state [ 56.860017][ T3208] bridge0: port 2(bridge_slave_1) entered forwarding state [ 56.868684][ T3208] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 56.907122][ T8131] chnl_net:caif_netlink_parms(): no params data found [ 56.927173][ T8120] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 56.938317][ T8120] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 56.984488][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 56.993439][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 57.001900][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 57.010492][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 57.018853][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 57.027502][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 57.036061][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 57.044822][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 57.053250][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 57.062514][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 57.070307][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 57.082534][ T8125] bridge0: port 1(bridge_slave_0) entered blocking state [ 57.089604][ T8125] bridge0: port 1(bridge_slave_0) entered disabled state [ 57.098119][ T8125] device bridge_slave_0 entered promiscuous mode [ 57.113951][ T8128] chnl_net:caif_netlink_parms(): no params data found [ 57.132538][ T8131] bridge0: port 1(bridge_slave_0) entered blocking state [ 57.141026][ T8131] bridge0: port 1(bridge_slave_0) entered disabled state [ 57.148574][ T8131] device bridge_slave_0 entered promiscuous mode [ 57.160564][ T8135] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 57.167968][ T8135] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 57.212834][ T8123] device hsr_slave_0 entered promiscuous mode [ 57.250397][ T8123] device hsr_slave_1 entered promiscuous mode [ 57.290139][ T8123] debugfs: Directory 'hsr0' with parent '/' already present! [ 57.297985][ T8125] bridge0: port 2(bridge_slave_1) entered blocking state [ 57.305096][ T8125] bridge0: port 2(bridge_slave_1) entered disabled state [ 57.315062][ T8125] device bridge_slave_1 entered promiscuous mode [ 57.337607][ T8120] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 57.346779][ T8131] bridge0: port 2(bridge_slave_1) entered blocking state [ 57.353963][ T8131] bridge0: port 2(bridge_slave_1) entered disabled state [ 57.362088][ T8131] device bridge_slave_1 entered promiscuous mode [ 57.380530][ T8131] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 57.396978][ T8125] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 57.407595][ T8125] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 57.418561][ T8131] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 57.477657][ T8133] chnl_net:caif_netlink_parms(): no params data found [ 57.516570][ T8125] team0: Port device team_slave_0 added [ 57.531950][ T8128] bridge0: port 1(bridge_slave_0) entered blocking state [ 57.539019][ T8128] bridge0: port 1(bridge_slave_0) entered disabled state [ 57.547719][ T8128] device bridge_slave_0 entered promiscuous mode [ 57.556703][ T8131] team0: Port device team_slave_0 added [ 57.565453][ T8131] team0: Port device team_slave_1 added [ 57.577607][ T8125] team0: Port device team_slave_1 added [ 57.587425][ T8128] bridge0: port 2(bridge_slave_1) entered blocking state [ 57.595651][ T8128] bridge0: port 2(bridge_slave_1) entered disabled state [ 57.603535][ T8128] device bridge_slave_1 entered promiscuous mode [ 57.643613][ T8123] netdevsim netdevsim1 netdevsim0: renamed from eth0 [ 162.669925][ C0] rcu: INFO: rcu_preempt self-detected stall on CPU [ 162.676694][ C0] rcu: 0-...!: (10499 ticks this GP) idle=de2/1/0x4000000000000002 softirq=10292/10292 fqs=0 [ 162.687156][ C0] (t=10500 jiffies g=5601 q=75) [ 162.692083][ C0] rcu: rcu_preempt kthread starved for 10500 jiffies! g5601 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1 [ 162.703162][ C0] rcu: RCU grace-period kthread stack dump: [ 162.709035][ C0] rcu_preempt R running task 29104 10 2 0x80004000 [ 162.716949][ C0] Call Trace: [ 162.720233][ C0] __schedule+0x9a0/0xcc0 [ 162.724565][ C0] schedule+0x181/0x210 [ 162.728707][ C0] schedule_timeout+0x14f/0x240 [ 162.733551][ C0] ? run_local_timers+0x120/0x120 [ 162.738570][ C0] rcu_gp_kthread+0xed8/0x1770 [ 162.743354][ C0] kthread+0x332/0x350 [ 162.747441][ C0] ? rcu_report_qs_rsp+0x140/0x140 [ 162.752560][ C0] ? kthread_blkcg+0xe0/0xe0 [ 162.757409][ C0] ret_from_fork+0x24/0x30 [ 162.761980][ C0] NMI backtrace for cpu 0 [ 162.766316][ C0] CPU: 0 PID: 4227 Comm: udevd Not tainted 5.4.0-syzkaller #0 [ 162.774192][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 162.784237][ C0] Call Trace: [ 162.787523][ C0] [ 162.790371][ C0] dump_stack+0x1fb/0x318 [ 162.794692][ C0] nmi_cpu_backtrace+0xaf/0x1a0 [ 162.799529][ C0] ? nmi_trigger_cpumask_backtrace+0x16d/0x290 [ 162.805671][ C0] ? arch_trigger_cpumask_backtrace+0x20/0x20 [ 162.811727][ C0] nmi_trigger_cpumask_backtrace+0x174/0x290 [ 162.817692][ C0] arch_trigger_cpumask_backtrace+0x10/0x20 [ 162.823571][ C0] rcu_dump_cpu_stacks+0x15a/0x220 [ 162.828673][ C0] rcu_sched_clock_irq+0xe25/0x1ad0 [ 162.833860][ C0] ? trace_hardirqs_off+0x74/0x80 [ 162.838873][ C0] update_process_times+0x12d/0x180 [ 162.844066][ C0] tick_sched_timer+0x263/0x420 [ 162.848904][ C0] ? tick_setup_sched_timer+0x3d0/0x3d0 [ 162.854437][ C0] __hrtimer_run_queues+0x403/0x840 [ 162.859648][ C0] hrtimer_interrupt+0x38c/0xda0 [ 162.864591][ C0] ? debug_smp_processor_id+0x9/0x20 [ 162.869865][ C0] smp_apic_timer_interrupt+0x109/0x280 [ 162.875428][ C0] apic_timer_interrupt+0xf/0x20 [ 162.880351][ C0] [ 162.883287][ C0] RIP: 0010:free_thread_stack+0x16d/0x590 [ 162.889001][ C0] Code: c3 08 48 89 d8 48 c1 e8 03 42 80 3c 28 00 74 08 48 89 df e8 25 a4 69 00 48 8b 3b be fc ff ff ff e8 28 04 00 00 43 80 3c 2e 00 <74> 08 4c 89 e7 e8 09 a4 69 00 49 8b 1c 24 48 83 c3 08 48 89 d8 48 [ 162.908600][ C0] RSP: 0018:ffffc90002047760 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 [ 162.917001][ C0] RAX: ffffffff81487433 RBX: ffff88806c589c88 RCX: ffff8880a25b81c0 [ 162.924957][ C0] RDX: 0000000000000000 RSI: 00000000fffffffc RDI: ffffea0001b16340 [ 162.932913][ C0] RBP: ffffc90002047798 R08: dffffc0000000000 R09: fffffbfff120248a [ 162.940873][ C0] R10: fffffbfff120248a R11: 0000000000000000 R12: ffff88806c589d20 [ 162.948833][ C0] R13: dffffc0000000000 R14: 1ffff1100d8b13a4 R15: ffff8880986ad928 [ 162.956805][ C0] ? mod_memcg_page_state+0x123/0x190 [ 162.962175][ C0] put_task_stack+0xa3/0x130 [ 162.966756][ C0] finish_task_switch+0x3f1/0x550 [ 162.971769][ C0] __schedule+0x9a8/0xcc0 [ 162.976092][ C0] schedule+0x181/0x210 [ 162.980252][ C0] schedule_hrtimeout_range_clock+0x3c7/0x510 [ 162.986334][ C0] ? trace_hrtimer_expire_exit+0x2d0/0x2d0 [ 162.992147][ C0] schedule_hrtimeout_range+0x2a/0x40 [ 162.997509][ C0] poll_schedule_timeout+0x11c/0x1c0 [ 163.002784][ C0] do_sys_poll+0x82f/0x1240 [ 163.007290][ C0] ? debug_object_activate+0x2f7/0x6f0 [ 163.012739][ C0] ? debug_object_active_state+0x1e3/0x4a0 [ 163.018538][ C0] ? __lock_acquire+0xc75/0x1be0 [ 163.023465][ C0] ? __x32_compat_sys_ppoll_time64+0xd0/0xd0 [ 163.029442][ C0] ? trace_hardirqs_on+0x74/0x80 [ 163.034449][ C0] ? ktime_get_ts64+0x6e/0x2c0 [ 163.039205][ C0] ? ktime_get_ts64+0x6e/0x2c0 [ 163.044156][ C0] ? read_seqcount_begin+0x125/0x1c0 [ 163.049458][ C0] ? trace_hardirqs_on+0x74/0x80 [ 163.054388][ C0] ? ktime_get_ts64+0x6e/0x2c0 [ 163.059147][ C0] ? read_seqcount_begin+0x17a/0x1c0 [ 163.064424][ C0] ? ktime_get_ts64+0x240/0x2c0 [ 163.069267][ C0] ? timespec64_add_safe+0x171/0x1b0 [ 163.074547][ C0] __se_sys_poll+0x1b0/0x360 [ 163.079133][ C0] __x64_sys_poll+0x7b/0x90 [ 163.083627][ C0] do_syscall_64+0xf7/0x1c0 [ 163.088121][ C0] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 163.093999][ C0] RIP: 0033:0x7ff6bcaad678 [ 163.098414][ C0] Code: 11 48 83 c8 ff eb ea 90 90 90 90 90 90 90 90 90 90 90 48 83 ec 28 8b 05 82 8f 2b 00 85 c0 75 17 48 63 d2 b8 07 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 48 83 c4 28 c3 89 54 24 08 48 89 74 24 10 [ 163.118005][ C0] RSP: 002b:00007fff54738c90 EFLAGS: 00000246 ORIG_RAX: 0000000000000007 [ 163.126405][ C0] RAX: ffffffffffffffda RBX: 20c49ba5e353f7cf RCX: 00007ff6bcaad678 [ 163.134375][ C0] RDX: 000000000000ee2f RSI: 0000000000000001 RDI: 00007fff54738d50 [ 163.142339][ C0] RBP: 0000000000000000 R08: 00007fff54738ca0 R09: 00007fff547cb0b8 [ 163.150308][ C0] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000001dcb8f0 [ 163.158268][ C0] R13: 0000000000001fcd R14: 00007fff54738d24 R15: 0000000001dcb250