Starting mcstransd: [....] Starting file context maintaining daemon: restorecond[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. [ 64.847527][ T26] kauditd_printk_skb: 7 callbacks suppressed [ 64.847538][ T26] audit: type=1800 audit(1571756594.339:39): pid=9176 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:kernel_t:s0 op=collect_data cause=failed(directio) comm="startpar" name="rc.local" dev="sda1" ino=2432 res=0 [ 64.876031][ T26] audit: type=1800 audit(1571756594.339:40): pid=9176 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:kernel_t:s0 op=collect_data cause=failed(directio) comm="startpar" name="rmnologin" dev="sda1" ino=2423 res=0 Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 68.327798][ T26] audit: type=1400 audit(1571756597.819:41): avc: denied { map } for pid=9354 comm="bash" path="/bin/bash" dev="sda1" ino=1457 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:file_t:s0 tclass=file permissive=1 Warning: Permanently added '10.128.0.227' (ECDSA) to the list of known hosts. [ 195.147076][ T26] audit: type=1400 audit(1571756724.639:42): avc: denied { map } for pid=9366 comm="syz-executor615" path="/root/syz-executor615658536" dev="sda1" ino=1426 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 [ 195.225490][ T9367] IPVS: ftp: loaded support on port[0] = 21 [ 195.279485][ T9367] chnl_net:caif_netlink_parms(): no params data found [ 195.307409][ T9367] bridge0: port 1(bridge_slave_0) entered blocking state [ 195.315148][ T9367] bridge0: port 1(bridge_slave_0) entered disabled state [ 195.323546][ T9367] device bridge_slave_0 entered promiscuous mode [ 195.331694][ T9367] bridge0: port 2(bridge_slave_1) entered blocking state [ 195.339057][ T9367] bridge0: port 2(bridge_slave_1) entered disabled state [ 195.346823][ T9367] device bridge_slave_1 entered promiscuous mode [ 195.362978][ T9367] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 195.373564][ T9367] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 195.392466][ T9367] team0: Port device team_slave_0 added [ 195.399625][ T9367] team0: Port device team_slave_1 added [ 195.474606][ T9367] device hsr_slave_0 entered promiscuous mode [ 195.542489][ T9367] device hsr_slave_1 entered promiscuous mode [ 195.600519][ T9367] bridge0: port 2(bridge_slave_1) entered blocking state [ 195.607698][ T9367] bridge0: port 2(bridge_slave_1) entered forwarding state [ 195.615572][ T9367] bridge0: port 1(bridge_slave_0) entered blocking state [ 195.623576][ T9367] bridge0: port 1(bridge_slave_0) entered forwarding state [ 195.658133][ T9367] 8021q: adding VLAN 0 to HW filter on device bond0 [ 195.670842][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 195.691405][ T5] bridge0: port 1(bridge_slave_0) entered disabled state [ 195.699561][ T5] bridge0: port 2(bridge_slave_1) entered disabled state [ 195.708352][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 195.719750][ T9367] 8021q: adding VLAN 0 to HW filter on device team0 [ 195.730205][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 195.738855][ T17] bridge0: port 1(bridge_slave_0) entered blocking state [ 195.745956][ T17] bridge0: port 1(bridge_slave_0) entered forwarding state [ 195.762987][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 195.771423][ T5] bridge0: port 2(bridge_slave_1) entered blocking state [ 195.778539][ T5] bridge0: port 2(bridge_slave_1) entered forwarding state [ 195.786536][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 195.799067][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 195.807415][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 195.818893][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 195.829970][ T9370] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 195.839909][ T9367] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 195.858229][ T9367] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 195.894973][ T26] audit: type=1400 audit(1571756725.389:43): avc: denied { associate } for pid=9367 comm="syz-executor615" name="syz0" scontext=unconfined_u:object_r:unlabeled_t:s0 tcontext=system_u:object_r:unlabeled_t:s0 tclass=filesystem permissive=1 executing program executing program [ 195.995699][ T1526] block nbd0: Receive control failed (result -22) [ 196.004007][ T9377] block nbd0: shutting down sockets [ 196.055030][ T1526] block nbd0: Receive control failed (result -22) [ 196.062605][ T9380] block nbd0: shutting down sockets executing program executing program [ 196.123286][ T1526] block nbd0: Receive control failed (result -22) [ 196.130819][ T9382] block nbd0: shutting down sockets [ 196.183787][ T1526] block nbd0: Receive control failed (result -22) [ 196.191962][ T9384] block nbd0: shutting down sockets executing program [ 196.275176][ T1526] block nbd0: Receive control failed (result -22) [ 196.282722][ T9386] block nbd0: shutting down sockets executing program [ 196.354761][ T1526] block nbd0: Receive control failed (result -22) [ 196.362127][ T9388] block nbd0: shutting down sockets executing program [ 196.443950][ T1526] block nbd0: Receive control failed (result -22) [ 196.451592][ T9390] block nbd0: shutting down sockets executing program executing program [ 196.543982][ T1526] block nbd0: Receive control failed (result -22) [ 196.551417][ T9392] block nbd0: shutting down sockets executing program [ 196.613530][ T1526] block nbd0: Receive control failed (result -22) [ 196.620997][ T9394] block nbd0: shutting down sockets [ 196.664190][ T1526] block nbd0: Receive control failed (result -22) [ 196.671883][ T9396] block nbd0: shutting down sockets executing program executing program [ 196.744361][ T1526] block nbd0: Receive control failed (result -22) [ 196.752064][ T9398] block nbd0: shutting down sockets [ 196.803761][ T1526] block nbd0: Receive control failed (result -22) [ 196.813381][ T9400] block nbd0: shutting down sockets executing program [ 196.883215][ T1526] block nbd0: Receive control failed (result -22) [ 196.890698][ T9402] block nbd0: shutting down sockets executing program [ 196.964101][ T1526] block nbd0: Receive control failed (result -22) [ 196.971679][ T9404] block nbd0: shutting down sockets executing program executing program [ 197.074618][ T1526] block nbd0: Receive control failed (result -22) [ 197.082067][ T9406] block nbd0: shutting down sockets [ 197.124031][ T1526] block nbd0: Receive control failed (result -22) [ 197.131569][ T9408] block nbd0: shutting down sockets executing program [ 197.203857][ T1526] block nbd0: Receive control failed (result -22) [ 197.211267][ T9410] block nbd0: shutting down sockets executing program [ 197.273942][ T1526] block nbd0: Receive control failed (result -22) [ 197.281505][ T9412] block nbd0: shutting down sockets executing program [ 197.354398][ T1526] block nbd0: Receive control failed (result -22) [ 197.362028][ T9414] block nbd0: shutting down sockets executing program [ 197.443912][ T1526] block nbd0: Receive control failed (result -22) [ 197.451413][ T9416] block nbd0: shutting down sockets executing program [ 197.514611][ T1526] block nbd0: Receive control failed (result -22) [ 197.522307][ T9418] block nbd0: shutting down sockets executing program [ 197.594270][ T1526] block nbd0: Receive control failed (result -22) [ 197.601694][ T9420] block nbd0: shutting down sockets executing program [ 197.663905][ T1526] block nbd0: Receive control failed (result -22) [ 197.671292][ T9422] block nbd0: shutting down sockets executing program [ 197.744742][ T1526] block nbd0: Receive control failed (result -22) [ 197.752223][ T9424] block nbd0: shutting down sockets executing program [ 197.815392][ T1526] block nbd0: Receive control failed (result -22) [ 197.822860][ T9426] block nbd0: shutting down sockets executing program [ 197.884216][ T1526] block nbd0: Receive control failed (result -22) [ 197.893237][ T9428] block nbd0: shutting down sockets executing program executing program [ 197.954157][ T1526] block nbd0: Receive control failed (result -22) [ 197.961844][ T9430] block nbd0: shutting down sockets [ 198.014210][ T1526] block nbd0: Receive control failed (result -22) [ 198.021862][ T9432] block nbd0: shutting down sockets executing program [ 198.094717][ T1526] block nbd0: Receive control failed (result -22) [ 198.103646][ T9434] block nbd0: shutting down sockets executing program [ 198.164516][ T1526] block nbd0: Receive control failed (result -22) [ 198.172029][ T9436] block nbd0: shutting down sockets executing program executing program [ 198.244273][ T1526] block nbd0: Receive control failed (result -22) [ 198.253467][ T9438] block nbd0: shutting down sockets [ 198.303619][ T1526] block nbd0: Receive control failed (result -22) [ 198.311127][ T9440] block nbd0: shutting down sockets executing program executing program [ 198.384196][ T1526] block nbd0: Receive control failed (result -22) [ 198.391620][ T9442] block nbd0: shutting down sockets [ 198.453710][ T1526] block nbd0: Receive control failed (result -22) [ 198.461091][ T9444] block nbd0: shutting down sockets executing program [ 198.533666][ T1526] block nbd0: Receive control failed (result -22) [ 198.541054][ T9446] block nbd0: shutting down sockets executing program [ 198.604450][ T1526] block nbd0: Receive control failed (result -22) [ 198.611860][ T9448] block nbd0: shutting down sockets executing program [ 198.675303][ T1526] block nbd0: Receive control failed (result -22) [ 198.683243][ T9450] block nbd0: shutting down sockets executing program [ 198.744681][ T1526] block nbd0: Receive control failed (result -22) [ 198.753582][ T9452] block nbd0: shutting down sockets executing program [ 198.825710][ T1526] block nbd0: Receive control failed (result -22) [ 198.833582][ T9454] block nbd0: shutting down sockets executing program [ 198.934186][ T1526] block nbd0: Receive control failed (result -22) [ 198.941708][ T9456] block nbd0: shutting down sockets executing program [ 199.024297][ T1526] block nbd0: Receive control failed (result -22) [ 199.031778][ T9458] block nbd0: shutting down sockets executing program executing program [ 199.103777][ T1526] block nbd0: Receive control failed (result -22) [ 199.111261][ T9460] block nbd0: shutting down sockets [ 199.153569][ T1526] block nbd0: Receive control failed (result -22) [ 199.161080][ T9462] block nbd0: shutting down sockets executing program executing program [ 199.224466][ T1526] block nbd0: Receive control failed (result -22) [ 199.231920][ T9464] block nbd0: shutting down sockets [ 199.284739][ T1526] block nbd0: Receive control failed (result -22) [ 199.292951][ T9466] block nbd0: shutting down sockets executing program executing program [ 199.363714][ T1526] block nbd0: Receive control failed (result -22) [ 199.371744][ T9468] block nbd0: shutting down sockets [ 199.423880][ T1526] block nbd0: Receive control failed (result -22) [ 199.431372][ T9470] block nbd0: shutting down sockets executing program executing program [ 199.505508][ T1526] block nbd0: Receive control failed (result -22) [ 199.513576][ T9472] block nbd0: shutting down sockets [ 199.564432][ T1526] block nbd0: Receive control failed (result -22) [ 199.571809][ T9474] block nbd0: shutting down sockets executing program [ 199.634699][ T1526] block nbd0: Receive control failed (result -22) [ 199.642885][ T9476] block nbd0: shutting down sockets executing program executing program [ 199.715042][ T1526] block nbd0: Receive control failed (result -22) [ 199.722606][ T9478] block nbd0: shutting down sockets executing program [ 199.775919][ T1526] block nbd0: Receive control failed (result -22) [ 199.783471][ T9480] block nbd0: shutting down sockets [ 199.835532][ T1526] block nbd0: Receive control failed (result -22) [ 199.843162][ T9482] block nbd0: shutting down sockets executing program [ 199.915476][ T1526] block nbd0: Receive control failed (result -22) [ 199.922896][ T9484] block nbd0: shutting down sockets executing program executing program [ 199.994087][ T1526] block nbd0: Receive control failed (result -22) [ 200.001749][ T9486] block nbd0: shutting down sockets [ 200.056012][ T1526] block nbd0: Receive control failed (result -22) [ 200.064254][ T9488] block nbd0: shutting down sockets executing program executing program [ 200.135233][ T1526] block nbd0: Receive control failed (result -22) [ 200.142894][ T9490] block nbd0: shutting down sockets [ 200.195109][ T1526] block nbd0: Receive control failed (result -22) [ 200.202948][ T9492] block nbd0: shutting down sockets executing program [ 200.275320][ T1526] block nbd0: Receive control failed (result -22) [ 200.282814][ T9494] block nbd0: shutting down sockets executing program [ 200.346072][ T1526] block nbd0: Receive control failed (result -22) [ 200.354924][ T9496] block nbd0: shutting down sockets executing program executing program [ 200.435452][ T1526] block nbd0: Receive control failed (result -22) [ 200.443058][ T9498] block nbd0: shutting down sockets [ 200.495093][ T1526] block nbd0: Receive control failed (result -22) [ 200.503816][ T9500] block nbd0: shutting down sockets executing program [ 200.604995][ T1526] block nbd0: Receive control failed (result -22) [ 200.612533][ T9502] block nbd0: shutting down sockets executing program [ 200.676259][ T1526] block nbd0: Receive control failed (result -22) [ 200.683733][ T9504] block nbd0: shutting down sockets executing program executing program [ 200.755419][ T1526] block nbd0: Receive control failed (result -22) [ 200.763057][ T9506] block nbd0: shutting down sockets [ 200.815012][ T1526] block nbd0: Receive control failed (result -22) [ 200.823923][ T9508] block nbd0: shutting down sockets executing program executing program [ 200.895646][ T1526] block nbd0: Receive control failed (result -22) [ 200.903400][ T9510] block nbd0: shutting down sockets [ 200.956011][ T1526] block nbd0: Receive control failed (result -22) [ 200.963960][ T9512] block nbd0: shutting down sockets executing program [ 201.034953][ T1526] block nbd0: Receive control failed (result -22) [ 201.042724][ T9514] block nbd0: shutting down sockets executing program executing program [ 201.126622][ T1526] block nbd0: Receive control failed (result -22) [ 201.134339][ T9516] block nbd0: shutting down sockets [ 201.186608][ T1526] block nbd0: Receive control failed (result -22) [ 201.194426][ T9518] block nbd0: shutting down sockets executing program [ 201.277537][ T1526] block nbd0: Receive control failed (result -22) [ 201.285356][ T9520] block nbd0: shutting down sockets executing program executing program [ 201.354621][ T1526] block nbd0: Receive control failed (result -22) [ 201.362061][ T9522] block nbd0: shutting down sockets [ 201.416088][ T1526] block nbd0: Receive control failed (result -22) [ 201.423883][ T9524] block nbd0: shutting down sockets executing program executing program [ 201.506091][ T1526] block nbd0: Receive control failed (result -22) [ 201.513539][ T9526] block nbd0: shutting down sockets [ 201.565765][ T1526] block nbd0: Receive control failed (result -22) [ 201.574032][ T9528] block nbd0: shutting down sockets executing program [ 201.644697][ T1526] block nbd0: Receive control failed (result -22) [ 201.652327][ T9530] block nbd0: shutting down sockets executing program [ 201.714762][ T1526] block nbd0: Receive control failed (result -22) [ 201.722453][ T9532] block nbd0: shutting down sockets executing program [ 201.795169][ T1526] block nbd0: Receive control failed (result -22) [ 201.802751][ T9534] block nbd0: shutting down sockets executing program executing program [ 201.873810][ T1526] block nbd0: Receive control failed (result -22) [ 201.881511][ T9536] block nbd0: shutting down sockets [ 201.935156][ T1526] block nbd0: Receive control failed (result -22) [ 201.942871][ T9538] block nbd0: shutting down sockets executing program executing program [ 202.023952][ T1526] block nbd0: Receive control failed (result -22) [ 202.031728][ T9540] block nbd0: shutting down sockets [ 202.084658][ T1526] block nbd0: Receive control failed (result -22) [ 202.092129][ T9542] block nbd0: shutting down sockets executing program executing program [ 202.163886][ T1526] block nbd0: Receive control failed (result -22) [ 202.171629][ T9544] block nbd0: shutting down sockets [ 202.224869][ T1526] block nbd0: Receive control failed (result -22) [ 202.232568][ T9546] block nbd0: shutting down sockets executing program [ 202.315693][ T1526] block nbd0: Receive control failed (result -22) [ 202.324788][ T9548] block nbd0: shutting down sockets executing program executing program [ 202.384286][ T1526] block nbd0: Receive control failed (result -22) [ 202.391730][ T9550] block nbd0: shutting down sockets executing program [ 202.454321][ T1526] block nbd0: Receive control failed (result -22) [ 202.461676][ T9552] block nbd0: shutting down sockets [ 202.515235][ T1526] block nbd0: Receive control failed (result -22) [ 202.522845][ T9554] block nbd0: shutting down sockets executing program executing program [ 202.594560][ T1526] block nbd0: Receive control failed (result -22) [ 202.602025][ T9556] block nbd0: shutting down sockets [ 202.643426][ T1526] block nbd0: Receive control failed (result -22) [ 202.651159][ T9558] block nbd0: shutting down sockets executing program [ 202.714471][ T1526] block nbd0: Receive control failed (result -22) [ 202.723218][ T9560] block nbd0: shutting down sockets executing program [ 202.794574][ T1526] block nbd0: Receive control failed (result -22) [ 202.803397][ T9562] block nbd0: shutting down sockets executing program [ 202.874168][ T1526] block nbd0: Receive control failed (result -22) [ 202.881500][ T9564] block nbd0: shutting down sockets executing program [ 202.943629][ T1526] block nbd0: Receive control failed (result -22) [ 202.951332][ T9566] block nbd0: shutting down sockets executing program [ 203.015471][ T1526] block nbd0: Receive control failed (result -22) [ 203.024234][ T9568] block nbd0: shutting down sockets executing program [ 203.094512][ T1526] block nbd0: Receive control failed (result -22) [ 203.101901][ T9570] block nbd0: shutting down sockets executing program executing program [ 203.173683][ T1526] block nbd0: Receive control failed (result -22) [ 203.181281][ T9572] block nbd0: shutting down sockets [ 203.224066][ T1526] block nbd0: Receive control failed (result -22) [ 203.232139][ T9574] block nbd0: shutting down sockets executing program executing program [ 203.294515][ T1526] block nbd0: Receive control failed (result -22) [ 203.303326][ T9576] block nbd0: shutting down sockets [ 203.354654][ T1526] block nbd0: Receive control failed (result -22) [ 203.362255][ T9578] block nbd0: shutting down sockets executing program [ 203.424318][ T1526] block nbd0: Receive control failed (result -22) [ 203.431854][ T9580] block nbd0: shutting down sockets executing program executing program [ 203.513589][ T1526] block nbd0: Receive control failed (result -22) [ 203.521053][ T9582] block nbd0: shutting down sockets [ 203.555198][ T1526] block nbd0: Receive control failed (result -22) [ 203.562657][ T9584] block nbd0: shutting down sockets executing program [ 203.623911][ T1526] block nbd0: Receive control failed (result -22) [ 203.631438][ T9586] block nbd0: shutting down sockets executing program [ 203.704357][ T1526] block nbd0: Receive control failed (result -22) [ 203.711737][ T9588] block nbd0: shutting down sockets executing program [ 203.784753][ T1526] block nbd0: Receive control failed (result -22) [ 203.792289][ T9590] block nbd0: shutting down sockets executing program executing program [ 203.864714][ T1526] block nbd0: Receive control failed (result -22) [ 203.872125][ T9592] block nbd0: shutting down sockets [ 203.935113][ T1526] block nbd0: Receive control failed (result -22) [ 203.943414][ T9594] block nbd0: shutting down sockets executing program [ 204.004780][ T1526] block nbd0: Receive control failed (result -22) [ 204.012458][ T9596] block nbd0: shutting down sockets executing program [ 204.084150][ T1526] block nbd0: Receive control failed (result -22) [ 204.091556][ T9598] block nbd0: shutting down sockets executing program executing program [ 204.164964][ T1526] block nbd0: Receive control failed (result -22) [ 204.172515][ T9600] block nbd0: shutting down sockets [ 204.233479][ T1526] block nbd0: Receive control failed (result -22) [ 204.240864][ T9602] block nbd0: shutting down sockets executing program [ 204.304862][ T1526] block nbd0: Receive control failed (result -22) [ 204.312313][ T9604] block nbd0: shutting down sockets executing program [ 204.384655][ T1526] block nbd0: Receive control failed (result -22) [ 204.392300][ T9606] block nbd0: shutting down sockets executing program executing program [ 204.464024][ T1526] block nbd0: Receive control failed (result -22) [ 204.471632][ T9608] block nbd0: shutting down sockets executing program [ 204.534587][ T1526] block nbd0: Receive control failed (result -22) [ 204.542038][ T9610] block nbd0: shutting down sockets [ 204.595365][ T1526] block nbd0: Receive control failed (result -22) [ 204.603558][ T9612] block nbd0: shutting down sockets executing program [ 204.674139][ T1526] block nbd0: Receive control failed (result -22) [ 204.681784][ T9614] block nbd0: shutting down sockets executing program [ 204.754189][ T1526] block nbd0: Receive control failed (result -22) [ 204.761899][ T9616] block nbd0: shutting down sockets executing program executing program [ 204.854253][ T1526] block nbd0: Receive control failed (result -22) [ 204.861604][ T9618] block nbd0: shutting down sockets executing program [ 204.923324][ T1526] block nbd0: Receive control failed (result -22) [ 204.930704][ T9620] block nbd0: shutting down sockets [ 204.993858][ T1526] block nbd0: Receive control failed (result -22) [ 205.001224][ T9622] block nbd0: shutting down sockets executing program [ 205.064280][ T1526] block nbd0: Receive control failed (result -22) [ 205.071769][ T9624] block nbd0: shutting down sockets executing program [ 205.144182][ T1526] block nbd0: Receive control failed (result -22) [ 205.151582][ T9626] block nbd0: shutting down sockets executing program executing program [ 205.223864][ T1526] block nbd0: Receive control failed (result -22) [ 205.231340][ T9628] block nbd0: shutting down sockets [ 205.284596][ T1526] block nbd0: Receive control failed (result -22) [ 205.292225][ T9630] block nbd0: shutting down sockets executing program [ 205.364568][ T1526] block nbd0: Receive control failed (result -22) [ 205.372281][ T9632] block nbd0: shutting down sockets executing program [ 205.443940][ T1526] block nbd0: Receive control failed (result -22) [ 205.451433][ T9634] block nbd0: shutting down sockets executing program executing program [ 205.524267][ T1526] block nbd0: Receive control failed (result -22) [ 205.531703][ T9636] block nbd0: shutting down sockets executing program [ 205.584798][ T1526] block nbd0: Receive control failed (result -22) [ 205.592488][ T9638] block nbd0: shutting down sockets [ 205.644776][ T1526] block nbd0: Receive control failed (result -22) [ 205.652485][ T9640] block nbd0: shutting down sockets executing program [ 205.724551][ T1526] block nbd0: Receive control failed (result -22) [ 205.731964][ T9642] block nbd0: shutting down sockets executing program executing program [ 205.793543][ T1526] block nbd0: Receive control failed (result -22) [ 205.801191][ T9644] block nbd0: shutting down sockets [ 205.854527][ T1526] block nbd0: Receive control failed (result -22) [ 205.862014][ T9646] block nbd0: shutting down sockets executing program [ 205.924375][ T1526] block nbd0: Receive control failed (result -22) [ 205.931902][ T9648] block nbd0: shutting down sockets executing program [ 206.004824][ T1526] block nbd0: Receive control failed (result -22) [ 206.012562][ T9650] block nbd0: shutting down sockets executing program executing program [ 206.084819][ T1526] block nbd0: Receive control failed (result -22) [ 206.092533][ T9652] block nbd0: shutting down sockets [ 206.134905][ T1526] block nbd0: Receive control failed (result -22) [ 206.142509][ T9654] block nbd0: shutting down sockets executing program [ 206.234052][ T1526] block nbd0: Receive control failed (result -22) [ 206.241477][ T9656] block nbd0: shutting down sockets executing program [ 206.304627][ T1526] block nbd0: Receive control failed (result -22) [ 206.312300][ T9658] block nbd0: shutting down sockets executing program [ 206.403847][ T1526] block nbd0: Receive control failed (result -22) [ 206.411534][ T9660] block nbd0: shutting down sockets executing program executing program [ 206.474090][ T1526] block nbd0: Receive control failed (result -22) [ 206.481553][ T9662] block nbd0: shutting down sockets [ 206.534567][ T1526] block nbd0: Receive control failed (result -22) [ 206.543179][ T9664] block nbd0: shutting down sockets executing program [ 206.604652][ T1526] block nbd0: Receive control failed (result -22) [ 206.612366][ T9666] block nbd0: shutting down sockets executing program executing program [ 206.673927][ T1526] block nbd0: Receive control failed (result -22) [ 206.681514][ T9668] block nbd0: shutting down sockets [ 206.733807][ T1526] block nbd0: Receive control failed (result -22) [ 206.741583][ T9670] block nbd0: shutting down sockets executing program [ 206.824211][ T1526] block nbd0: Receive control failed (result -22) [ 206.831761][ T9672] block nbd0: shutting down sockets executing program [ 206.904307][ T1526] block nbd0: Receive control failed (result -22) [ 206.911884][ T9674] block nbd0: shutting down sockets executing program [ 206.994168][ T1526] block nbd0: Receive control failed (result -22) [ 207.001842][ T9676] block nbd0: shutting down sockets executing program executing program [ 207.074065][ T1526] block nbd0: Receive control failed (result -22) [ 207.082297][ T9678] block nbd0: shutting down sockets executing program [ 207.134483][ T1526] block nbd0: Receive control failed (result -22) [ 207.143240][ T9680] block nbd0: shutting down sockets [ 207.203885][ T1526] block nbd0: Receive control failed (result -22) [ 207.211273][ T9682] block nbd0: shutting down sockets executing program executing program [ 207.294483][ T1526] block nbd0: Receive control failed (result -22) [ 207.301817][ T9684] block nbd0: shutting down sockets executing program [ 207.353883][ T1526] block nbd0: Receive control failed (result -22) [ 207.361377][ T9686] block nbd0: shutting down sockets [ 207.414939][ T1526] block nbd0: Receive control failed (result -22) [ 207.422496][ T9688] block nbd0: shutting down sockets executing program [ 207.484883][ T1526] block nbd0: Receive control failed (result -22) [ 207.492571][ T9690] block nbd0: shutting down sockets executing program [ 207.564814][ T1526] block nbd0: Receive control failed (result -22) [ 207.573735][ T9692] block nbd0: shutting down sockets executing program [ 207.644396][ T1526] block nbd0: Receive control failed (result -22) [ 207.651913][ T9694] block nbd0: shutting down sockets executing program executing program [ 207.714515][ T1526] block nbd0: Receive control failed (result -22) [ 207.723544][ T9696] block nbd0: shutting down sockets [ 207.775352][ T1526] block nbd0: Receive control failed (result -22) [ 207.784650][ T9698] block nbd0: shutting down sockets executing program [ 207.864808][ T1526] block nbd0: Receive control failed (result -22) [ 207.873347][ T9700] block nbd0: shutting down sockets executing program executing program [ 207.954988][ T1526] block nbd0: Receive control failed (result -22) [ 207.962606][ T9702] block nbd0: shutting down sockets executing program [ 208.014690][ T1526] block nbd0: Receive control failed (result -22) [ 208.022514][ T9704] block nbd0: shutting down sockets [ 208.075707][ T1526] block nbd0: Receive control failed (result -22) [ 208.083789][ T9706] block nbd0: shutting down sockets executing program executing program [ 208.153884][ T1526] block nbd0: Receive control failed (result -22) [ 208.161397][ T9708] block nbd0: shutting down sockets executing program [ 208.214707][ T1526] block nbd0: Receive control failed (result -22) [ 208.222779][ T9710] block nbd0: shutting down sockets [ 208.274887][ T1526] block nbd0: Receive control failed (result -22) [ 208.282723][ T9712] block nbd0: shutting down sockets executing program [ 208.373884][ T1526] block nbd0: Receive control failed (result -22) [ 208.381310][ T9714] block nbd0: shutting down sockets executing program [ 208.444995][ T1526] block nbd0: Receive control failed (result -22) [ 208.452513][ T9716] block nbd0: shutting down sockets executing program executing program [ 208.515013][ T1526] block nbd0: Receive control failed (result -22) [ 208.522511][ T9718] block nbd0: shutting down sockets [ 208.575043][ T1526] block nbd0: Receive control failed (result -22) [ 208.582674][ T9720] block nbd0: shutting down sockets executing program [ 208.644873][ T1526] block nbd0: Receive control failed (result -22) [ 208.654553][ T9722] block nbd0: shutting down sockets executing program [ 208.725008][ T1526] block nbd0: Receive control failed (result -22) [ 208.733136][ T1526] block nbd0: shutting down sockets [ 208.739177][ T1526] [ 208.741521][ T1526] ============================================ [ 208.747699][ T1526] WARNING: possible recursive locking detected [ 208.753840][ T1526] 5.4.0-rc4+ #0 Not tainted [ 208.758321][ T1526] -------------------------------------------- [ 208.764455][ T1526] kworker/u5:0/1526 is trying to acquire lock: [ 208.770585][ T1526] ffff888096749128 ((wq_completion)knbd0-recv){+.+.}, at: flush_workqueue+0xf7/0x14c0 [ 208.780188][ T1526] [ 208.780188][ T1526] but task is already holding lock: [ 208.787537][ T1526] ffff888096749128 ((wq_completion)knbd0-recv){+.+.}, at: process_one_work+0x88b/0x1740 [ 208.797243][ T1526] [ 208.797243][ T1526] other info that might help us debug this: [ 208.805562][ T1526] Possible unsafe locking scenario: [ 208.805562][ T1526] [ 208.812998][ T1526] CPU0 [ 208.816264][ T1526] ---- [ 208.819528][ T1526] lock((wq_completion)knbd0-recv); [ 208.824795][ T1526] lock((wq_completion)knbd0-recv); [ 208.830062][ T1526] [ 208.830062][ T1526] *** DEADLOCK *** [ 208.830062][ T1526] [ 208.838196][ T1526] May be due to missing lock nesting notation [ 208.838196][ T1526] [ 208.846505][ T1526] 3 locks held by kworker/u5:0/1526: [ 208.851871][ T1526] #0: ffff888096749128 ((wq_completion)knbd0-recv){+.+.}, at: process_one_work+0x88b/0x1740 [ 208.862016][ T1526] #1: ffff8880a61d7dc0 ((work_completion)(&args->work)){+.+.}, at: process_one_work+0x8c1/0x1740 [ 208.872626][ T1526] #2: ffff8880a363a178 (&nbd->config_lock){+.+.}, at: refcount_dec_and_mutex_lock+0x56/0x90 [ 208.882803][ T1526] [ 208.882803][ T1526] stack backtrace: [ 208.888774][ T1526] CPU: 1 PID: 1526 Comm: kworker/u5:0 Not tainted 5.4.0-rc4+ #0 [ 208.896382][ T1526] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 208.906547][ T1526] Workqueue: knbd0-recv recv_work [ 208.911593][ T1526] Call Trace: [ 208.915014][ T1526] dump_stack+0x172/0x1f0 [ 208.919343][ T1526] __lock_acquire.cold+0x15d/0x385 [ 208.924730][ T1526] ? mark_held_locks+0xf0/0xf0 [ 208.929576][ T1526] lock_acquire+0x190/0x410 [ 208.934089][ T1526] ? flush_workqueue+0xf7/0x14c0 [ 208.939033][ T1526] flush_workqueue+0x126/0x14c0 [ 208.944008][ T1526] ? flush_workqueue+0xf7/0x14c0 [ 208.948978][ T1526] ? lock_downgrade+0x920/0x920 [ 208.953812][ T1526] ? drain_workqueue+0x2b/0x470 [ 208.958651][ T1526] ? debug_check_no_obj_freed+0x20a/0x43f [ 208.964358][ T1526] ? find_held_lock+0x35/0x130 [ 208.969108][ T1526] ? pwq_unbound_release_workfn+0x2f0/0x2f0 [ 208.974989][ T1526] ? mark_lock+0xc2/0x1220 [ 208.979392][ T1526] drain_workqueue+0x1b4/0x470 [ 208.984143][ T1526] ? drain_workqueue+0x1b4/0x470 [ 208.989081][ T1526] ? kfree+0x226/0x2c0 [ 208.993148][ T1526] destroy_workqueue+0x21/0x700 [ 208.997987][ T1526] ? nbd_config_put+0x378/0x870 [ 209.002821][ T1526] nbd_config_put+0x3dd/0x870 [ 209.007485][ T1526] recv_work+0x19b/0x200 [ 209.011713][ T1526] process_one_work+0x9af/0x1740 [ 209.016642][ T1526] ? pwq_dec_nr_in_flight+0x320/0x320 executing program [ 209.022039][ T1526] ? lock_acquire+0x190/0x410 [ 209.026706][ T1526] worker_thread+0x98/0xe40 [ 209.031204][ T1526] kthread+0x361/0x430 [ 209.035258][ T1526] ? process_one_work+0x1740/0x1740 [ 209.040442][ T1526] ? kthread_mod_delayed_work+0x1f0/0x1f0 [ 209.046178][ T1526] ret_from_fork+0x24/0x30