[ 42.457026][ T26] audit: type=1800 audit(1571242265.386:25): pid=7730 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 42.491745][ T26] audit: type=1800 audit(1571242265.386:26): pid=7730 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 42.526811][ T26] audit: type=1800 audit(1571242265.386:27): pid=7730 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 res=0 [ 42.551991][ T26] audit: type=1800 audit(1571242265.386:28): pid=7730 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. Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.162' (ECDSA) to the list of known hosts. syzkaller login: [ 53.056169][ T7882] IPVS: ftp: loaded support on port[0] = 21 [ 53.108553][ T7882] chnl_net:caif_netlink_parms(): no params data found [ 53.132185][ T7882] bridge0: port 1(bridge_slave_0) entered blocking state [ 53.140334][ T7882] bridge0: port 1(bridge_slave_0) entered disabled state [ 53.148106][ T7882] device bridge_slave_0 entered promiscuous mode [ 53.156264][ T7882] bridge0: port 2(bridge_slave_1) entered blocking state [ 53.163327][ T7882] bridge0: port 2(bridge_slave_1) entered disabled state [ 53.171044][ T7882] device bridge_slave_1 entered promiscuous mode [ 53.185858][ T7882] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 53.196145][ T7882] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 53.213546][ T7882] team0: Port device team_slave_0 added [ 53.220703][ T7882] team0: Port device team_slave_1 added [ 53.287142][ T7882] device hsr_slave_0 entered promiscuous mode [ 53.345372][ T7882] device hsr_slave_1 entered promiscuous mode [ 53.402143][ T7882] bridge0: port 2(bridge_slave_1) entered blocking state [ 53.409515][ T7882] bridge0: port 2(bridge_slave_1) entered forwarding state [ 53.417584][ T7882] bridge0: port 1(bridge_slave_0) entered blocking state [ 53.424643][ T7882] bridge0: port 1(bridge_slave_0) entered forwarding state [ 53.453890][ T7882] 8021q: adding VLAN 0 to HW filter on device bond0 [ 53.467680][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 53.478012][ T12] bridge0: port 1(bridge_slave_0) entered disabled state [ 53.486441][ T12] bridge0: port 2(bridge_slave_1) entered disabled state [ 53.494072][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 53.505864][ T7882] 8021q: adding VLAN 0 to HW filter on device team0 [ 53.516323][ T3014] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 53.524750][ T3014] bridge0: port 1(bridge_slave_0) entered blocking state [ 53.531873][ T3014] bridge0: port 1(bridge_slave_0) entered forwarding state [ 53.540782][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 53.549650][ T12] bridge0: port 2(bridge_slave_1) entered blocking state [ 53.556758][ T12] bridge0: port 2(bridge_slave_1) entered forwarding state [ 53.571561][ T3014] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 53.580426][ T3014] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 53.591269][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 53.602284][ T3014] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 53.613745][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 53.623339][ T7882] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 53.639066][ T7882] 8021q: adding VLAN 0 to HW filter on device batadv0 executing program executing program [ 53.742053][ T1527] block nbd0: Receive control failed (result -22) [ 53.750653][ T7891] block nbd0: shutting down sockets [ 53.762159][ T1527] block nbd0: Receive control failed (result -22) [ 53.770016][ T7891] block nbd0: shutting down sockets executing program [ 53.795931][ T1527] block nbd0: Receive control failed (result -22) [ 53.803290][ T7897] block nbd0: shutting down sockets executing program [ 53.847810][ T1527] block nbd0: Receive control failed (result -22) [ 53.859899][ T7901] block nbd0: shutting down sockets executing program [ 53.889638][ T1527] block nbd0: Receive control failed (result -22) [ 53.898739][ T7905] block nbd0: shutting down sockets executing program [ 53.947512][ T1527] block nbd0: Receive control failed (result -22) [ 53.955948][ T7909] block nbd0: shutting down sockets executing program [ 53.998164][ T1527] block nbd0: Receive control failed (result -22) [ 54.006667][ T7913] block nbd0: shutting down sockets [ 54.022274][ T7913] block nbd0: shutting down sockets executing program [ 54.058501][ T1527] block nbd0: Receive control failed (result -22) [ 54.066406][ T7917] block nbd0: shutting down sockets executing program [ 54.108976][ T1527] block nbd0: Receive control failed (result -22) [ 54.116566][ T7921] block nbd0: shutting down sockets executing program [ 54.151237][ T1527] block nbd0: Receive control failed (result -22) [ 54.158732][ T7925] block nbd0: shutting down sockets executing program [ 54.206928][ T1527] block nbd0: Receive control failed (result -22) [ 54.214489][ T7929] block nbd0: shutting down sockets executing program [ 54.258556][ T1527] block nbd0: Receive control failed (result -22) [ 54.266228][ T7933] block nbd0: shutting down sockets executing program [ 54.308152][ T1527] block nbd0: Receive control failed (result -22) [ 54.316325][ T7937] block nbd0: shutting down sockets executing program [ 54.356606][ T1527] block nbd0: Receive control failed (result -22) [ 54.364152][ T7941] block nbd0: shutting down sockets [ 54.377930][ T7941] block nbd0: shutting down sockets [ 54.400106][ T1527] block nbd0: Receive control failed (result -22) executing program [ 54.408003][ T7945] block nbd0: shutting down sockets executing program [ 54.433152][ T1527] block nbd0: Receive control failed (result -22) [ 54.440897][ T7949] block nbd0: shutting down sockets [ 54.459281][ T1527] block nbd0: Receive control failed (result -22) [ 54.467010][ T7949] block nbd0: shutting down sockets executing program [ 54.501030][ T1527] block nbd0: Receive control failed (result -22) [ 54.509260][ T7954] block nbd0: shutting down sockets executing program [ 54.547662][ T1527] block nbd0: Receive control failed (result -22) [ 54.555365][ T7958] block nbd0: shutting down sockets [ 54.578948][ T1527] block nbd0: Receive control failed (result -22) [ 54.586994][ T7958] block nbd0: shutting down sockets executing program [ 54.621706][ T1527] block nbd0: Receive control failed (result -22) [ 54.629431][ T7963] block nbd0: shutting down sockets executing program [ 54.675914][ T1527] block nbd0: Receive control failed (result -22) [ 54.683569][ T7967] block nbd0: shutting down sockets executing program [ 54.721175][ T1527] block nbd0: Receive control failed (result -22) [ 54.728850][ T7971] block nbd0: shutting down sockets executing program [ 54.774122][ T1527] block nbd0: Receive control failed (result -22) [ 54.782034][ T7975] block nbd0: shutting down sockets [ 54.811808][ T1527] block nbd0: Receive control failed (result -22) executing program [ 54.819761][ T7979] block nbd0: shutting down sockets executing program [ 54.866803][ T1527] block nbd0: Receive control failed (result -22) [ 54.874357][ T7983] block nbd0: shutting down sockets executing program [ 54.918039][ T1527] block nbd0: Receive control failed (result -22) [ 54.929256][ T7987] block nbd0: shutting down sockets executing program [ 54.969272][ T1527] block nbd0: Receive control failed (result -22) [ 54.976968][ T7991] block nbd0: shutting down sockets executing program [ 55.027993][ T1527] block nbd0: Receive control failed (result -22) [ 55.036327][ T7995] block nbd0: shutting down sockets executing program [ 55.075858][ T1527] block nbd0: Receive control failed (result -22) [ 55.083417][ T7999] block nbd0: shutting down sockets executing program [ 55.126708][ T1527] block nbd0: Receive control failed (result -22) [ 55.134331][ T8003] block nbd0: shutting down sockets executing program [ 55.179309][ T1527] block nbd0: Receive control failed (result -22) [ 55.187132][ T8007] block nbd0: shutting down sockets executing program [ 55.235757][ T1527] block nbd0: Receive control failed (result -22) [ 55.243680][ T8011] block nbd0: shutting down sockets [ 55.272313][ T1527] block nbd0: Receive control failed (result -22) [ 55.280548][ T8015] block nbd0: shutting down sockets executing program executing program [ 55.323308][ T1527] block nbd0: Receive control failed (result -22) [ 55.331218][ T8019] block nbd0: shutting down sockets executing program [ 55.370780][ T1527] block nbd0: Receive control failed (result -22) [ 55.379297][ T8023] block nbd0: shutting down sockets executing program [ 55.419909][ T1527] block nbd0: Receive control failed (result -22) [ 55.428468][ T8027] block nbd0: shutting down sockets executing program [ 55.480700][ T1527] block nbd0: Receive control failed (result -22) [ 55.488565][ T8031] block nbd0: shutting down sockets executing program [ 55.534820][ T1527] block nbd0: Receive control failed (result -22) [ 55.545128][ T8035] block nbd0: shutting down sockets executing program [ 55.578276][ T1527] block nbd0: Receive control failed (result -22) [ 55.586449][ T8039] block nbd0: shutting down sockets executing program [ 55.638237][ T1527] block nbd0: Receive control failed (result -22) [ 55.650960][ T8043] block nbd0: shutting down sockets executing program [ 55.697623][ T1527] block nbd0: Receive control failed (result -22) [ 55.705683][ T8047] block nbd0: shutting down sockets [ 55.737400][ T1527] block nbd0: Receive control failed (result -22) executing program [ 55.744905][ T8051] block nbd0: shutting down sockets executing program [ 55.792500][ T1527] block nbd0: Receive control failed (result -22) [ 55.800730][ T8055] block nbd0: shutting down sockets executing program [ 55.847542][ T1527] block nbd0: Receive control failed (result -22) [ 55.858065][ T8059] block nbd0: shutting down sockets executing program [ 55.897616][ T1527] block nbd0: Receive control failed (result -22) [ 55.905464][ T8063] block nbd0: shutting down sockets executing program [ 55.939716][ T1527] block nbd0: Receive control failed (result -22) [ 55.947981][ T8067] block nbd0: shutting down sockets executing program [ 55.995209][ T1527] block nbd0: Receive control failed (result -22) [ 56.003131][ T8071] block nbd0: shutting down sockets [ 56.034479][ T1527] block nbd0: Receive control failed (result -22) executing program [ 56.042334][ T8075] block nbd0: shutting down sockets executing program [ 56.081714][ T1527] block nbd0: Receive control failed (result -22) [ 56.092264][ T8079] block nbd0: shutting down sockets executing program [ 56.127874][ T1527] block nbd0: Receive control failed (result -22) [ 56.136032][ T8083] block nbd0: shutting down sockets executing program [ 56.177527][ T1527] block nbd0: Receive control failed (result -22) [ 56.189085][ T8087] block nbd0: shutting down sockets executing program [ 56.241391][ T1527] block nbd0: Receive control failed (result -22) [ 56.249115][ T8091] block nbd0: shutting down sockets [ 56.262543][ T8091] block nbd0: shutting down sockets executing program [ 56.287685][ T1527] block nbd0: Receive control failed (result -22) [ 56.295537][ T8095] block nbd0: shutting down sockets executing program [ 56.335982][ T1527] block nbd0: Receive control failed (result -22) [ 56.343488][ T8099] block nbd0: shutting down sockets executing program [ 56.388933][ T1527] block nbd0: Receive control failed (result -22) [ 56.397002][ T8103] block nbd0: shutting down sockets executing program [ 56.430818][ T1527] block nbd0: Receive control failed (result -22) [ 56.438708][ T8107] block nbd0: shutting down sockets executing program [ 56.483376][ T1527] block nbd0: Receive control failed (result -22) [ 56.495349][ T8111] block nbd0: shutting down sockets executing program [ 56.534759][ T1527] block nbd0: Receive control failed (result -22) [ 56.542726][ T8115] block nbd0: shutting down sockets executing program [ 56.587368][ T1527] block nbd0: Receive control failed (result -22) [ 56.595924][ T8119] block nbd0: shutting down sockets executing program [ 56.633864][ T1527] block nbd0: Receive control failed (result -22) [ 56.641440][ T8123] block nbd0: shutting down sockets executing program [ 56.677174][ T1527] block nbd0: Receive control failed (result -22) [ 56.684679][ T8127] block nbd0: shutting down sockets [ 56.716350][ T1527] block nbd0: Receive control failed (result -22) executing program [ 56.723926][ T8131] block nbd0: shutting down sockets executing program [ 56.763157][ T1527] block nbd0: Receive control failed (result -22) [ 56.771265][ T8135] block nbd0: shutting down sockets executing program [ 56.807166][ T1527] block nbd0: Receive control failed (result -22) [ 56.814690][ T8139] block nbd0: shutting down sockets executing program [ 56.847440][ T1527] block nbd0: Receive control failed (result -22) [ 56.855368][ T8143] block nbd0: shutting down sockets [ 56.880185][ T8143] block nbd0: shutting down sockets executing program [ 56.901002][ T1527] block nbd0: Receive control failed (result -22) [ 56.909038][ T8147] block nbd0: shutting down sockets [ 56.937904][ T1527] block nbd0: Receive control failed (result -22) executing program [ 56.946601][ T8151] block nbd0: shutting down sockets executing program [ 56.980571][ T1527] block nbd0: Receive control failed (result -22) [ 56.988224][ T8155] block nbd0: shutting down sockets [ 57.020059][ T1527] block nbd0: Receive control failed (result -22) executing program [ 57.027689][ T8159] block nbd0: shutting down sockets [ 57.048725][ T1527] block nbd0: Receive control failed (result -22) [ 57.057322][ T8159] block nbd0: shutting down sockets executing program [ 57.082239][ T1527] block nbd0: Receive control failed (result -22) [ 57.092197][ T8164] block nbd0: shutting down sockets executing program [ 57.137556][ T1527] block nbd0: Receive control failed (result -22) [ 57.149252][ T8168] block nbd0: shutting down sockets executing program [ 57.198134][ T1527] block nbd0: Receive control failed (result -22) [ 57.206101][ T8172] block nbd0: shutting down sockets [ 57.229042][ T1527] block nbd0: Receive control failed (result -22) [ 57.238056][ T8172] block nbd0: shutting down sockets executing program [ 57.258832][ T1527] block nbd0: Receive control failed (result -22) [ 57.267235][ T8177] block nbd0: shutting down sockets executing program [ 57.299918][ T1527] block nbd0: Receive control failed (result -22) [ 57.307902][ T8181] block nbd0: shutting down sockets executing program [ 57.345203][ T1527] block nbd0: Receive control failed (result -22) [ 57.352891][ T8185] block nbd0: shutting down sockets executing program [ 57.394798][ T1527] block nbd0: Receive control failed (result -22) [ 57.403049][ T8189] block nbd0: shutting down sockets executing program [ 57.444027][ T1527] block nbd0: Receive control failed (result -22) [ 57.451860][ T8193] block nbd0: shutting down sockets executing program [ 57.497335][ T1527] block nbd0: Receive control failed (result -22) [ 57.504907][ T8197] block nbd0: shutting down sockets [ 57.536574][ T1527] block nbd0: Receive control failed (result -22) executing program [ 57.544095][ T8201] block nbd0: shutting down sockets executing program [ 57.586824][ T1527] block nbd0: Receive control failed (result -22) [ 57.594548][ T8205] block nbd0: shutting down sockets [ 57.626405][ T1527] block nbd0: Receive control failed (result -22) executing program [ 57.636762][ T8209] block nbd0: shutting down sockets executing program [ 57.668643][ T1527] block nbd0: Receive control failed (result -22) [ 57.676815][ T8213] block nbd0: shutting down sockets [ 57.701384][ T1527] block nbd0: Receive control failed (result -22) [ 57.709492][ T8213] block nbd0: shutting down sockets executing program [ 57.738857][ T1527] block nbd0: Receive control failed (result -22) [ 57.746650][ T8218] block nbd0: shutting down sockets [ 57.768791][ T1527] block nbd0: Receive control failed (result -22) [ 57.777637][ T8218] block nbd0: shutting down sockets executing program [ 57.801048][ T1527] block nbd0: Receive control failed (result -22) [ 57.808817][ T8223] block nbd0: shutting down sockets executing program [ 57.856829][ T1527] block nbd0: Receive control failed (result -22) [ 57.864443][ T8227] block nbd0: shutting down sockets executing program [ 57.899632][ T1527] block nbd0: Receive control failed (result -22) [ 57.907496][ T8231] block nbd0: shutting down sockets executing program [ 57.942247][ T1527] block nbd0: Receive control failed (result -22) [ 57.950022][ T8235] block nbd0: shutting down sockets executing program [ 57.983402][ T1527] block nbd0: Receive control failed (result -22) [ 57.991276][ T8239] block nbd0: shutting down sockets [ 58.009375][ T1527] block nbd0: Receive control failed (result -22) [ 58.017461][ T8239] block nbd0: shutting down sockets executing program [ 58.035305][ T1527] block nbd0: Receive control failed (result -22) [ 58.042768][ T8244] block nbd0: shutting down sockets executing program [ 58.091120][ T1527] block nbd0: Receive control failed (result -22) [ 58.101962][ T8248] block nbd0: shutting down sockets executing program [ 58.137575][ T1527] block nbd0: Receive control failed (result -22) [ 58.148100][ T8252] block nbd0: shutting down sockets [ 58.162548][ T1527] block nbd0: Receive control failed (result -22) [ 58.170106][ T8252] block nbd0: shutting down sockets executing program [ 58.192933][ T1527] block nbd0: Receive control failed (result -22) [ 58.200753][ T8257] block nbd0: shutting down sockets executing program [ 58.239083][ T1527] block nbd0: Receive control failed (result -22) [ 58.249639][ T8261] block nbd0: shutting down sockets executing program [ 58.282504][ T1527] block nbd0: Receive control failed (result -22) [ 58.290407][ T8265] block nbd0: shutting down sockets executing program [ 58.327060][ T1527] block nbd0: Receive control failed (result -22) [ 58.334676][ T8269] block nbd0: shutting down sockets executing program [ 58.376494][ T1527] block nbd0: Receive control failed (result -22) [ 58.384064][ T8273] block nbd0: shutting down sockets executing program [ 58.427703][ T1527] block nbd0: Receive control failed (result -22) [ 58.436500][ T8277] block nbd0: shutting down sockets executing program [ 58.476670][ T1527] block nbd0: Receive control failed (result -22) [ 58.488506][ T8281] block nbd0: shutting down sockets [ 58.501435][ T1527] block nbd0: Receive control failed (result -22) [ 58.509495][ T8281] block nbd0: shutting down sockets executing program [ 58.537663][ T1527] block nbd0: Receive control failed (result -22) [ 58.545857][ T8286] block nbd0: shutting down sockets executing program [ 58.589601][ T1527] block nbd0: Receive control failed (result -22) [ 58.597384][ T8290] block nbd0: shutting down sockets [ 58.629035][ T1527] block nbd0: Receive control failed (result -22) executing program [ 58.636794][ T8294] block nbd0: shutting down sockets executing program executing program [ 58.672597][ T1527] block nbd0: Receive control failed (result -22) [ 58.680369][ T8298] block nbd0: shutting down sockets [ 58.709782][ T1527] block nbd0: Receive control failed (result -22) [ 58.717631][ T8302] block nbd0: shutting down sockets executing program [ 58.741181][ T1527] block nbd0: Receive control failed (result -22) [ 58.749041][ T8307] block nbd0: shutting down sockets [ 58.769094][ T1527] block nbd0: Receive control failed (result -22) [ 58.778584][ T8307] block nbd0: shutting down sockets executing program [ 58.808335][ T1527] block nbd0: Receive control failed (result -22) [ 58.816473][ T8312] block nbd0: shutting down sockets [ 58.830183][ T8312] block nbd0: shutting down sockets executing program [ 58.857032][ T1527] block nbd0: Receive control failed (result -22) [ 58.864502][ T8316] block nbd0: shutting down sockets executing program [ 58.903381][ T1527] block nbd0: Receive control failed (result -22) [ 58.911215][ T8320] block nbd0: shutting down sockets executing program [ 58.946785][ T1527] block nbd0: Receive control failed (result -22) [ 58.954408][ T8324] block nbd0: shutting down sockets executing program [ 58.990256][ T1527] block nbd0: Receive control failed (result -22) [ 58.997917][ T8328] block nbd0: shutting down sockets executing program [ 59.048190][ T1527] block nbd0: Receive control failed (result -22) [ 59.056722][ T8332] block nbd0: shutting down sockets executing program [ 59.096696][ T1527] block nbd0: Receive control failed (result -22) [ 59.104204][ T8336] block nbd0: shutting down sockets executing program [ 59.140359][ T1527] block nbd0: Receive control failed (result -22) [ 59.149890][ T8340] block nbd0: shutting down sockets executing program [ 59.197879][ T1527] block nbd0: Receive control failed (result -22) [ 59.206118][ T8344] block nbd0: shutting down sockets executing program [ 59.252896][ T1527] block nbd0: Receive control failed (result -22) [ 59.260762][ T8348] block nbd0: shutting down sockets executing program [ 59.298129][ T1527] block nbd0: Receive control failed (result -22) [ 59.306104][ T8352] block nbd0: shutting down sockets [ 59.329513][ T8352] block nbd0: shutting down sockets executing program [ 59.347427][ T1527] block nbd0: Receive control failed (result -22) [ 59.355880][ T8356] block nbd0: shutting down sockets executing program [ 59.398206][ T1527] block nbd0: Receive control failed (result -22) [ 59.406220][ T8360] block nbd0: shutting down sockets executing program [ 59.447515][ T1527] block nbd0: Receive control failed (result -22) [ 59.457728][ T8364] block nbd0: shutting down sockets executing program [ 59.506944][ T1527] block nbd0: Receive control failed (result -22) [ 59.514468][ T8368] block nbd0: shutting down sockets executing program [ 59.552676][ T1527] block nbd0: Receive control failed (result -22) [ 59.560220][ T8372] block nbd0: shutting down sockets [ 59.590904][ T1527] block nbd0: Receive control failed (result -22) executing program [ 59.598715][ T8376] block nbd0: shutting down sockets executing program [ 59.632325][ T1527] block nbd0: Receive control failed (result -22) [ 59.640045][ T8380] block nbd0: shutting down sockets executing program [ 59.673960][ T1527] block nbd0: Receive control failed (result -22) [ 59.682068][ T8384] block nbd0: shutting down sockets [ 59.699410][ T8384] block nbd0: shutting down sockets executing program [ 59.725544][ T1527] block nbd0: Receive control failed (result -22) [ 59.737376][ T8388] block nbd0: shutting down sockets executing program [ 59.769268][ T1527] block nbd0: Receive control failed (result -22) [ 59.780846][ T8392] block nbd0: shutting down sockets executing program [ 59.814805][ T1527] block nbd0: Receive control failed (result -22) [ 59.826081][ T8396] block nbd0: shutting down sockets [ 59.849925][ T1527] block nbd0: Receive control failed (result -22) [ 59.858792][ T8396] block nbd0: shutting down sockets executing program [ 59.878705][ T1527] block nbd0: Receive control failed (result -22) [ 59.888694][ T8401] block nbd0: shutting down sockets [ 59.910278][ T8401] block nbd0: shutting down sockets executing program [ 59.936812][ T1527] block nbd0: Receive control failed (result -22) [ 59.944299][ T8405] block nbd0: shutting down sockets executing program [ 59.982422][ T1527] block nbd0: Receive control failed (result -22) [ 59.993125][ T8409] block nbd0: shutting down sockets executing program [ 60.030608][ T1527] block nbd0: Receive control failed (result -22) [ 60.038492][ T8413] block nbd0: shutting down sockets [ 60.067008][ T1527] block nbd0: Receive control failed (result -22) executing program [ 60.078590][ T8417] block nbd0: shutting down sockets executing program [ 60.116576][ T1527] block nbd0: Receive control failed (result -22) [ 60.124138][ T8422] block nbd0: shutting down sockets [ 60.136711][ T8422] block nbd0: shutting down sockets executing program [ 60.156869][ T1527] block nbd0: Receive control failed (result -22) [ 60.164422][ T8426] block nbd0: shutting down sockets executing program [ 60.202476][ T1527] block nbd0: Receive control failed (result -22) [ 60.210041][ T8430] block nbd0: shutting down sockets executing program [ 60.243549][ T1527] block nbd0: Receive control failed (result -22) [ 60.251379][ T8434] block nbd0: shutting down sockets executing program [ 60.288052][ T1527] block nbd0: Receive control failed (result -22) [ 60.296592][ T8438] block nbd0: shutting down sockets executing program [ 60.336125][ T1527] block nbd0: Receive control failed (result -22) [ 60.343695][ T8442] block nbd0: shutting down sockets [ 60.356050][ T8442] block nbd0: shutting down sockets executing program [ 60.385938][ T1527] block nbd0: Receive control failed (result -22) [ 60.397649][ T8446] block nbd0: shutting down sockets executing program [ 60.436332][ T1527] block nbd0: Receive control failed (result -22) [ 60.443972][ T8450] block nbd0: shutting down sockets executing program [ 60.477979][ T1527] block nbd0: Receive control failed (result -22) [ 60.488666][ T8454] block nbd0: shutting down sockets executing program [ 60.518734][ T1527] block nbd0: Receive control failed (result -22) [ 60.529007][ T8458] block nbd0: shutting down sockets executing program [ 60.563374][ T1527] block nbd0: Receive control failed (result -22) [ 60.571507][ T8462] block nbd0: shutting down sockets executing program [ 60.609018][ T1527] block nbd0: Receive control failed (result -22) [ 60.616513][ T8466] block nbd0: shutting down sockets executing program [ 60.654158][ T1527] block nbd0: Receive control failed (result -22) [ 60.662060][ T8470] block nbd0: shutting down sockets executing program [ 60.704592][ T1527] block nbd0: Receive control failed (result -22) [ 60.712788][ T8474] block nbd0: shutting down sockets executing program [ 60.748995][ T1527] block nbd0: Receive control failed (result -22) [ 60.756989][ T8478] block nbd0: shutting down sockets [ 60.786647][ T1527] block nbd0: Receive control failed (result -22) executing program [ 60.797663][ T8483] block nbd0: shutting down sockets [ 60.827782][ T1527] block nbd0: Receive control failed (result -22) [ 60.836296][ T1527] block nbd0: shutting down sockets [ 60.842084][ T1527] [ 60.844418][ T1527] ============================================ [ 60.850546][ T1527] WARNING: possible recursive locking detected [ 60.856726][ T1527] 5.4.0-rc3+ #0 Not tainted [ 60.861199][ T1527] -------------------------------------------- [ 60.867321][ T1527] kworker/u5:0/1527 is trying to acquire lock: [ 60.873463][ T1527] ffff888097906928 ((wq_completion)knbd0-recv){+.+.}, at: flush_workqueue+0xf0/0x14b0 [ 60.882985][ T1527] [ 60.882985][ T1527] but task is already holding lock: [ 60.890325][ T1527] ffff888097906928 ((wq_completion)knbd0-recv){+.+.}, at: process_one_work+0x75d/0x10e0 [ 60.900021][ T1527] [ 60.900021][ T1527] other info that might help us debug this: [ 60.908055][ T1527] Possible unsafe locking scenario: [ 60.908055][ T1527] [ 60.915481][ T1527] CPU0 [ 60.918734][ T1527] ---- [ 60.922097][ T1527] lock((wq_completion)knbd0-recv); [ 60.927366][ T1527] lock((wq_completion)knbd0-recv); [ 60.932623][ T1527] [ 60.932623][ T1527] *** DEADLOCK *** [ 60.932623][ T1527] [ 60.940748][ T1527] May be due to missing lock nesting notation [ 60.940748][ T1527] [ 60.949050][ T1527] 3 locks held by kworker/u5:0/1527: [ 60.954307][ T1527] #0: ffff888097906928 ((wq_completion)knbd0-recv){+.+.}, at: process_one_work+0x75d/0x10e0 [ 60.964457][ T1527] #1: ffff8880a63a7d78 ((work_completion)(&args->work)){+.+.}, at: process_one_work+0x79f/0x10e0 [ 60.975021][ T1527] #2: ffff8880a31dd978 (&nbd->config_lock){+.+.}, at: refcount_dec_and_mutex_lock+0x2f/0x60 [ 60.985161][ T1527] [ 60.985161][ T1527] stack backtrace: [ 60.991037][ T1527] CPU: 1 PID: 1527 Comm: kworker/u5:0 Not tainted 5.4.0-rc3+ #0 [ 60.998649][ T1527] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 61.009305][ T1527] Workqueue: knbd0-recv recv_work [ 61.014301][ T1527] Call Trace: [ 61.017572][ T1527] dump_stack+0x1d8/0x2f8 [ 61.021887][ T1527] validate_chain+0x61bd/0x7bc0 [ 61.026730][ T1527] ? __kasan_check_read+0x11/0x20 [ 61.031741][ T1527] ? mark_lock+0x107/0x1650 [ 61.036223][ T1527] ? __lock_acquire+0xc75/0x1be0 [ 61.041140][ T1527] __lock_acquire+0xc75/0x1be0 [ 61.045889][ T1527] ? trace_lock_acquire+0x159/0x1d0 [ 61.051079][ T1527] lock_acquire+0x158/0x250 [ 61.055558][ T1527] ? flush_workqueue+0xf0/0x14b0 [ 61.060477][ T1527] flush_workqueue+0x10c/0x14b0 [ 61.065309][ T1527] ? flush_workqueue+0xf0/0x14b0 [ 61.070239][ T1527] ? drain_workqueue+0xb1/0x500 [ 61.075068][ T1527] drain_workqueue+0xb9/0x500 [ 61.079720][ T1527] ? lockdep_hardirqs_on+0x3c5/0x7d0 [ 61.085000][ T1527] destroy_workqueue+0x2b/0xe00 [ 61.089839][ T1527] ? trace_hardirqs_on+0x74/0x80 [ 61.094753][ T1527] nbd_config_put+0x525/0x740 [ 61.099405][ T1527] recv_work+0x11eb/0x1250 [ 61.103799][ T1527] process_one_work+0x7ef/0x10e0 [ 61.108714][ T1527] worker_thread+0xc01/0x1630 [ 61.113386][ T1527] kthread+0x332/0x350 [ 61.117427][ T1527] ? rcu_lock_release+0x30/0x30 [ 61.122251][ T1527] ? kthread_blkcg+0xe0/0xe0 [ 61.126839][ T1527] ret_from_fork+0x24/0x30