[info] Using makefile-style concurrent boot in runlevel 2. [ 26.710528] audit: type=1800 audit(1543841748.444:21): pid=5841 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="bootlogs" dev="sda1" ino=2419 res=0 [....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [....] 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 '10.128.0.80' (ECDSA) to the list of known hosts. 2018/12/03 12:56:04 parsed 1 programs 2018/12/03 12:56:05 executed programs: 0 syzkaller login: [ 44.323403] IPVS: ftp: loaded support on port[0] = 21 [ 44.323410] IPVS: ftp: loaded support on port[0] = 21 [ 44.336917] IPVS: ftp: loaded support on port[0] = 21 [ 44.351137] IPVS: ftp: loaded support on port[0] = 21 [ 44.358963] IPVS: ftp: loaded support on port[0] = 21 [ 44.368412] IPVS: ftp: loaded support on port[0] = 21 [ 45.163881] bridge0: port 1(bridge_slave_0) entered blocking state [ 45.176191] bridge0: port 1(bridge_slave_0) entered disabled state [ 45.189112] device bridge_slave_0 entered promiscuous mode [ 45.211639] bridge0: port 1(bridge_slave_0) entered blocking state [ 45.219653] bridge0: port 1(bridge_slave_0) entered disabled state [ 45.227008] device bridge_slave_0 entered promiscuous mode [ 45.234926] bridge0: port 1(bridge_slave_0) entered blocking state [ 45.243623] bridge0: port 1(bridge_slave_0) entered disabled state [ 45.253593] device bridge_slave_0 entered promiscuous mode [ 45.271541] bridge0: port 2(bridge_slave_1) entered blocking state [ 45.281742] bridge0: port 2(bridge_slave_1) entered disabled state [ 45.290692] device bridge_slave_1 entered promiscuous mode [ 45.332673] bridge0: port 2(bridge_slave_1) entered blocking state [ 45.347746] bridge0: port 2(bridge_slave_1) entered disabled state [ 45.355095] device bridge_slave_1 entered promiscuous mode [ 45.363995] bridge0: port 2(bridge_slave_1) entered blocking state [ 45.373267] bridge0: port 2(bridge_slave_1) entered disabled state [ 45.381192] device bridge_slave_1 entered promiscuous mode [ 45.390531] bridge0: port 1(bridge_slave_0) entered blocking state [ 45.396982] bridge0: port 1(bridge_slave_0) entered disabled state [ 45.405090] device bridge_slave_0 entered promiscuous mode [ 45.414404] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 45.423687] bridge0: port 1(bridge_slave_0) entered blocking state [ 45.433068] bridge0: port 1(bridge_slave_0) entered disabled state [ 45.442238] device bridge_slave_0 entered promiscuous mode [ 45.453865] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 45.468758] bridge0: port 1(bridge_slave_0) entered blocking state [ 45.475126] bridge0: port 1(bridge_slave_0) entered disabled state [ 45.482939] device bridge_slave_0 entered promiscuous mode [ 45.492399] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 45.502588] bridge0: port 2(bridge_slave_1) entered blocking state [ 45.513927] bridge0: port 2(bridge_slave_1) entered disabled state [ 45.521665] device bridge_slave_1 entered promiscuous mode [ 45.529065] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 45.536247] bridge0: port 2(bridge_slave_1) entered blocking state [ 45.548020] bridge0: port 2(bridge_slave_1) entered disabled state [ 45.555427] device bridge_slave_1 entered promiscuous mode [ 45.564787] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 45.575087] bridge0: port 2(bridge_slave_1) entered blocking state [ 45.586877] bridge0: port 2(bridge_slave_1) entered disabled state [ 45.595205] device bridge_slave_1 entered promiscuous mode [ 45.613822] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 45.637618] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 45.645070] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 45.701754] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 45.716715] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 45.724800] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 45.740102] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 45.782683] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 45.829641] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 45.870365] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 45.893183] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 45.910781] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 45.961517] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 45.994154] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 46.004588] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 46.016819] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 46.032421] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 46.054376] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 46.067164] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 46.079425] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 46.088231] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 46.109012] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 46.129028] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 46.136827] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 46.154830] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 46.165028] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 46.176012] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 46.186450] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 46.196624] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 46.215557] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 46.236258] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 46.250491] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 46.269471] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 46.282922] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 46.292305] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 46.328141] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 46.340485] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 46.370362] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 46.384007] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 46.405747] team0: Port device team_slave_0 added [ 46.412667] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 46.445620] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 46.453196] team0: Port device team_slave_0 added [ 46.479798] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 46.494615] team0: Port device team_slave_1 added [ 46.530607] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 46.548086] team0: Port device team_slave_1 added [ 46.570354] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 46.585013] team0: Port device team_slave_0 added [ 46.595272] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 46.612242] team0: Port device team_slave_0 added [ 46.631397] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 46.645110] team0: Port device team_slave_0 added [ 46.658558] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 46.668657] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 46.676652] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 46.684498] team0: Port device team_slave_1 added [ 46.692827] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 46.700597] team0: Port device team_slave_0 added [ 46.721030] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 46.731683] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 46.741378] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 46.749952] team0: Port device team_slave_1 added [ 46.756968] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 46.774027] team0: Port device team_slave_1 added [ 46.784295] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 46.793904] team0: Port device team_slave_1 added [ 46.801692] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 46.814217] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 46.825530] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 46.839434] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 46.849600] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 46.878194] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 46.886264] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 46.909619] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 46.917294] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 46.925089] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 46.935694] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 46.954481] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 46.973643] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 46.992531] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 47.001172] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 47.009385] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 47.018191] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 47.025367] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 47.038328] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 47.049438] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 47.060984] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 47.074488] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 47.085358] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 47.098767] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 47.115748] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 47.124214] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 47.132260] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 47.140088] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 47.151031] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 47.159478] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 47.170005] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 47.189885] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 47.198434] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 47.206355] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 47.232702] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 47.240636] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 47.248491] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 47.257069] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 47.265024] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 47.280658] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 47.301844] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 47.312217] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 47.322796] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 47.331514] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 47.339486] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 47.347226] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 47.961196] bridge0: port 2(bridge_slave_1) entered blocking state [ 47.967859] bridge0: port 2(bridge_slave_1) entered forwarding state [ 47.974834] bridge0: port 1(bridge_slave_0) entered blocking state [ 47.981272] bridge0: port 1(bridge_slave_0) entered forwarding state [ 47.999192] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 48.005585] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 48.029986] bridge0: port 2(bridge_slave_1) entered blocking state [ 48.036357] bridge0: port 2(bridge_slave_1) entered forwarding state [ 48.043153] bridge0: port 1(bridge_slave_0) entered blocking state [ 48.049574] bridge0: port 1(bridge_slave_0) entered forwarding state [ 48.059319] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 48.068930] bridge0: port 2(bridge_slave_1) entered blocking state [ 48.075291] bridge0: port 2(bridge_slave_1) entered forwarding state [ 48.082065] bridge0: port 1(bridge_slave_0) entered blocking state [ 48.088476] bridge0: port 1(bridge_slave_0) entered forwarding state [ 48.096337] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 48.110579] bridge0: port 2(bridge_slave_1) entered blocking state [ 48.116949] bridge0: port 2(bridge_slave_1) entered forwarding state [ 48.123665] bridge0: port 1(bridge_slave_0) entered blocking state [ 48.130087] bridge0: port 1(bridge_slave_0) entered forwarding state [ 48.139155] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 48.158445] bridge0: port 2(bridge_slave_1) entered blocking state [ 48.164804] bridge0: port 2(bridge_slave_1) entered forwarding state [ 48.171510] bridge0: port 1(bridge_slave_0) entered blocking state [ 48.177918] bridge0: port 1(bridge_slave_0) entered forwarding state [ 48.191692] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 48.236346] bridge0: port 2(bridge_slave_1) entered blocking state [ 48.242800] bridge0: port 2(bridge_slave_1) entered forwarding state [ 48.249497] bridge0: port 1(bridge_slave_0) entered blocking state [ 48.255877] bridge0: port 1(bridge_slave_0) entered forwarding state [ 48.272586] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 49.027910] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 49.035141] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 49.052774] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 49.061573] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 49.068809] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 50.756455] 8021q: adding VLAN 0 to HW filter on device bond0 [ 50.862235] 8021q: adding VLAN 0 to HW filter on device bond0 [ 50.943079] 8021q: adding VLAN 0 to HW filter on device bond0 [ 50.985533] 8021q: adding VLAN 0 to HW filter on device bond0 [ 51.021936] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 51.065013] 8021q: adding VLAN 0 to HW filter on device bond0 [ 51.128114] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 51.178322] 8021q: adding VLAN 0 to HW filter on device bond0 [ 51.233226] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 51.258758] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 51.326615] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 51.346900] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 51.362867] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 51.371868] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 51.395629] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 51.402927] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 51.415099] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 51.449992] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 51.531906] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 51.545710] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 51.555462] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 51.588146] 8021q: adding VLAN 0 to HW filter on device team0 [ 51.601764] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 51.618523] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 51.626787] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 51.657653] 8021q: adding VLAN 0 to HW filter on device team0 [ 51.699922] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 51.706094] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 51.715649] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 51.831494] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 51.855249] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 51.865910] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 51.881848] 8021q: adding VLAN 0 to HW filter on device team0 [ 51.899102] 8021q: adding VLAN 0 to HW filter on device team0 [ 51.953256] 8021q: adding VLAN 0 to HW filter on device team0 [ 52.142193] 8021q: adding VLAN 0 to HW filter on device team0 2018/12/03 12:56:15 executed programs: 6 2018/12/03 12:56:21 executed programs: 42 [ 63.609459] [ 63.611124] ===================================================== [ 63.617340] WARNING: SOFTIRQ-safe -> SOFTIRQ-unsafe lock order detected [ 63.624080] 4.20.0-rc5+ #361 Not tainted [ 63.628116] ----------------------------------------------------- [ 63.634336] syz-executor5/7886 [HC0[0]:SC0[0]:HE0:SE1] is trying to acquire: [ 63.641500] 000000007dfdb342 (&ctx->fd_wqh){....}, at: aio_poll+0x760/0x1420 [ 63.648685] [ 63.648685] and this task is already holding: [ 63.654650] 000000005209528f (&(&ctx->ctx_lock)->rlock){..-.}, at: aio_poll+0x738/0x1420 [ 63.662892] which would create a new lock dependency: [ 63.668073] (&(&ctx->ctx_lock)->rlock){..-.} -> (&ctx->fd_wqh){....} [ 63.674648] [ 63.674648] but this new dependency connects a SOFTIRQ-irq-safe lock: [ 63.682701] (&(&ctx->ctx_lock)->rlock){..-.} [ 63.682709] [ 63.682709] ... which became SOFTIRQ-irq-safe at: [ 63.693492] lock_acquire+0x1ed/0x520 [ 63.697365] _raw_spin_lock_irq+0x61/0x80 [ 63.701609] free_ioctx_users+0xbc/0x710 [ 63.705758] percpu_ref_switch_to_atomic_rcu+0x563/0x730 [ 63.711279] rcu_process_callbacks+0x100a/0x1ac0 [ 63.716108] __do_softirq+0x308/0xb7e [ 63.719980] irq_exit+0x17f/0x1c0 [ 63.723505] smp_apic_timer_interrupt+0x1cb/0x760 [ 63.728419] apic_timer_interrupt+0xf/0x20 [ 63.732726] native_safe_halt+0x6/0x10 [ 63.736684] default_idle+0xbf/0x490 [ 63.740471] arch_cpu_idle+0x10/0x20 [ 63.744257] default_idle_call+0x6d/0x90 [ 63.748390] do_idle+0x49b/0x5c0 [ 63.751831] cpu_startup_entry+0x18/0x20 [ 63.755962] start_secondary+0x487/0x5f0 [ 63.760101] secondary_startup_64+0xa4/0xb0 [ 63.764507] [ 63.764507] to a SOFTIRQ-irq-unsafe lock: [ 63.770816] (&ctx->fault_pending_wqh){+.+.} [ 63.770825] [ 63.770825] ... which became SOFTIRQ-irq-unsafe at: [ 63.781676] ... [ 63.781691] lock_acquire+0x1ed/0x520 [ 63.787432] _raw_spin_lock+0x2d/0x40 [ 63.791321] userfaultfd_release+0x63e/0x8d0 [ 63.795802] __fput+0x385/0xa30 [ 63.799154] ____fput+0x15/0x20 [ 63.802530] task_work_run+0x1e8/0x2a0 [ 63.806494] exit_to_usermode_loop+0x318/0x380 [ 63.811163] do_syscall_64+0x6be/0x820 [ 63.815123] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 63.820374] [ 63.820374] other info that might help us debug this: [ 63.820374] [ 63.828494] Chain exists of: [ 63.828494] &(&ctx->ctx_lock)->rlock --> &ctx->fd_wqh --> &ctx->fault_pending_wqh [ 63.828494] [ 63.840628] Possible interrupt unsafe locking scenario: [ 63.840628] [ 63.847550] CPU0 CPU1 [ 63.852193] ---- ---- [ 63.856845] lock(&ctx->fault_pending_wqh); [ 63.861232] local_irq_disable(); [ 63.867262] lock(&(&ctx->ctx_lock)->rlock); [ 63.874254] lock(&ctx->fd_wqh); [ 63.880207] [ 63.882951] lock(&(&ctx->ctx_lock)->rlock); [ 63.887596] [ 63.887596] *** DEADLOCK *** [ 63.887596] [ 63.893643] 1 lock held by syz-executor5/7886: [ 63.898203] #0: 000000005209528f (&(&ctx->ctx_lock)->rlock){..-.}, at: aio_poll+0x738/0x1420 [ 63.906868] [ 63.906868] the dependencies between SOFTIRQ-irq-safe lock and the holding lock: [ 63.915881] -> (&(&ctx->ctx_lock)->rlock){..-.} { [ 63.920714] IN-SOFTIRQ-W at: [ 63.923981] lock_acquire+0x1ed/0x520 [ 63.929435] _raw_spin_lock_irq+0x61/0x80 [ 63.935218] free_ioctx_users+0xbc/0x710 [ 63.940911] percpu_ref_switch_to_atomic_rcu+0x563/0x730 [ 63.948000] rcu_process_callbacks+0x100a/0x1ac0 [ 63.954401] __do_softirq+0x308/0xb7e [ 63.959851] irq_exit+0x17f/0x1c0 [ 63.964941] smp_apic_timer_interrupt+0x1cb/0x760 [ 63.971445] apic_timer_interrupt+0xf/0x20 [ 63.977339] native_safe_halt+0x6/0x10 [ 63.982866] default_idle+0xbf/0x490 [ 63.988226] arch_cpu_idle+0x10/0x20 [ 63.993585] default_idle_call+0x6d/0x90 [ 63.999278] do_idle+0x49b/0x5c0 [ 64.004299] cpu_startup_entry+0x18/0x20 [ 64.010002] start_secondary+0x487/0x5f0 [ 64.015694] secondary_startup_64+0xa4/0xb0 [ 64.021650] INITIAL USE at: [ 64.024831] lock_acquire+0x1ed/0x520 [ 64.030178] _raw_spin_lock_irq+0x61/0x80 [ 64.035897] free_ioctx_users+0xbc/0x710 [ 64.041528] percpu_ref_switch_to_atomic_rcu+0x563/0x730 [ 64.048538] rcu_process_callbacks+0x100a/0x1ac0 [ 64.054843] __do_softirq+0x308/0xb7e [ 64.060193] irq_exit+0x17f/0x1c0 [ 64.065198] smp_apic_timer_interrupt+0x1cb/0x760 [ 64.071605] apic_timer_interrupt+0xf/0x20 [ 64.077428] native_safe_halt+0x6/0x10 [ 64.082883] default_idle+0xbf/0x490 [ 64.088158] arch_cpu_idle+0x10/0x20 [ 64.093429] default_idle_call+0x6d/0x90 [ 64.099037] do_idle+0x49b/0x5c0 [ 64.103969] cpu_startup_entry+0x18/0x20 [ 64.109611] start_secondary+0x487/0x5f0 [ 64.115233] secondary_startup_64+0xa4/0xb0 [ 64.121112] } [ 64.122910] ... key at: [] __key.51053+0x0/0x40 [ 64.129653] ... acquired at: [ 64.132751] lock_acquire+0x1ed/0x520 [ 64.136711] _raw_spin_lock+0x2d/0x40 [ 64.140678] aio_poll+0x760/0x1420 [ 64.144387] io_submit_one+0xa49/0xf80 [ 64.148444] __x64_sys_io_submit+0x1b7/0x580 [ 64.153023] do_syscall_64+0x1b9/0x820 [ 64.157080] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 64.162418] [ 64.164026] [ 64.164026] the dependencies between the lock to be acquired [ 64.164031] and SOFTIRQ-irq-unsafe lock: [ 64.175433] -> (&ctx->fault_pending_wqh){+.+.} { [ 64.180259] HARDIRQ-ON-W at: [ 64.183613] lock_acquire+0x1ed/0x520 [ 64.189220] _raw_spin_lock+0x2d/0x40 [ 64.194838] userfaultfd_release+0x63e/0x8d0 [ 64.201052] __fput+0x385/0xa30 [ 64.206159] ____fput+0x15/0x20 [ 64.211258] task_work_run+0x1e8/0x2a0 [ 64.216985] exit_to_usermode_loop+0x318/0x380 [ 64.223393] do_syscall_64+0x6be/0x820 [ 64.229093] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 64.236083] SOFTIRQ-ON-W at: [ 64.239433] lock_acquire+0x1ed/0x520 [ 64.245052] _raw_spin_lock+0x2d/0x40 [ 64.250685] userfaultfd_release+0x63e/0x8d0 [ 64.256903] __fput+0x385/0xa30 [ 64.261987] ____fput+0x15/0x20 [ 64.267078] task_work_run+0x1e8/0x2a0 [ 64.272779] exit_to_usermode_loop+0x318/0x380 [ 64.279171] do_syscall_64+0x6be/0x820 [ 64.284872] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 64.291871] INITIAL USE at: [ 64.295137] lock_acquire+0x1ed/0x520 [ 64.300657] _raw_spin_lock+0x2d/0x40 [ 64.306200] userfaultfd_ctx_read+0x4f3/0x2180 [ 64.312519] userfaultfd_read+0x1e2/0x2c0 [ 64.318402] __vfs_read+0x117/0x9b0 [ 64.323745] vfs_read+0x17f/0x3c0 [ 64.328918] ksys_read+0x101/0x260 [ 64.334177] __x64_sys_read+0x73/0xb0 [ 64.339698] do_syscall_64+0x1b9/0x820 [ 64.345306] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 64.352214] } [ 64.354093] ... key at: [] __key.44661+0x0/0x40 [ 64.360908] ... acquired at: [ 64.364090] _raw_spin_lock+0x2d/0x40 [ 64.368054] userfaultfd_ctx_read+0x4f3/0x2180 [ 64.372802] userfaultfd_read+0x1e2/0x2c0 [ 64.377109] __vfs_read+0x117/0x9b0 [ 64.380896] vfs_read+0x17f/0x3c0 [ 64.384502] ksys_read+0x101/0x260 [ 64.388197] __x64_sys_read+0x73/0xb0 [ 64.392155] do_syscall_64+0x1b9/0x820 [ 64.396201] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 64.401544] [ 64.403162] -> (&ctx->fd_wqh){....} { [ 64.406945] INITIAL USE at: [ 64.410123] lock_acquire+0x1ed/0x520 [ 64.415470] _raw_spin_lock_irq+0x61/0x80 [ 64.421166] userfaultfd_ctx_read+0x2e4/0x2180 [ 64.427296] userfaultfd_read+0x1e2/0x2c0 [ 64.433009] __vfs_read+0x117/0x9b0 [ 64.438179] vfs_read+0x17f/0x3c0 [ 64.443175] ksys_read+0x101/0x260 [ 64.448261] __x64_sys_read+0x73/0xb0 [ 64.453616] do_syscall_64+0x1b9/0x820 [ 64.459070] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 64.465805] } [ 64.467615] ... key at: [] __key.44664+0x0/0x40 [ 64.474350] ... acquired at: [ 64.477452] lock_acquire+0x1ed/0x520 [ 64.481426] _raw_spin_lock+0x2d/0x40 [ 64.485383] aio_poll+0x760/0x1420 [ 64.489083] io_submit_one+0xa49/0xf80 [ 64.493128] __x64_sys_io_submit+0x1b7/0x580 [ 64.497706] do_syscall_64+0x1b9/0x820 [ 64.501779] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 64.507136] [ 64.508739] [ 64.508739] stack backtrace: [ 64.513220] CPU: 0 PID: 7886 Comm: syz-executor5 Not tainted 4.20.0-rc5+ #361 [ 64.520475] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 64.529812] Call Trace: [ 64.532412] dump_stack+0x244/0x39d [ 64.536024] ? dump_stack_print_info.cold.1+0x20/0x20 [ 64.541201] ? print_shortest_lock_dependencies.cold.55+0x18e/0x211 [ 64.547593] ? vprintk_func+0x85/0x181 [ 64.551465] check_usage.cold.58+0x6d5/0xad1 [ 64.555863] ? check_usage_forwards+0x3d0/0x3d0 [ 64.560514] ? __lock_acquire+0x62f/0x4c20 [ 64.564742] ? __switch_to_asm+0x34/0x70 [ 64.568787] ? lockdep_on+0x50/0x50 [ 64.572401] ? mark_held_locks+0x130/0x130 [ 64.576636] ? __lock_acquire+0x62f/0x4c20 [ 64.580868] ? trace_event_raw_event_lock_acquire+0x440/0x440 [ 64.586738] __lock_acquire+0x238a/0x4c20 [ 64.590882] ? __lock_acquire+0x238a/0x4c20 [ 64.595190] ? mark_held_locks+0x130/0x130 [ 64.599417] ? zap_class+0x640/0x640 [ 64.603134] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 64.607882] ? find_held_lock+0x36/0x1c0 [ 64.611939] ? add_wait_queue+0x1b9/0x2b0 [ 64.616086] ? _raw_spin_unlock_irqrestore+0x82/0xd0 [ 64.621185] ? _raw_spin_unlock_irqrestore+0x82/0xd0 [ 64.626270] ? lockdep_hardirqs_on+0x3bb/0x5b0 [ 64.630842] ? trace_hardirqs_on+0xbd/0x310 [ 64.635147] ? kasan_check_read+0x11/0x20 [ 64.639279] ? trace_hardirqs_off_caller+0x310/0x310 [ 64.644365] ? rcu_softirq_qs+0x20/0x20 [ 64.648338] ? _raw_spin_unlock_irqrestore+0x6d/0xd0 [ 64.653438] ? add_wait_queue+0x1b9/0x2b0 [ 64.657571] ? __wake_up_locked_key_bookmark+0x20/0x20 [ 64.662835] lock_acquire+0x1ed/0x520 [ 64.666645] ? aio_poll+0x760/0x1420 [ 64.670347] ? lock_release+0xa00/0xa00 [ 64.674314] ? kasan_check_read+0x11/0x20 [ 64.678468] ? do_raw_spin_lock+0x14f/0x350 [ 64.682773] ? __ia32_sys_eventfd+0x40/0x40 [ 64.687086] ? rwlock_bug.part.2+0x90/0x90 [ 64.691341] ? trace_hardirqs_on+0x310/0x310 [ 64.695737] ? __save_stack_trace+0x8d/0xf0 [ 64.700047] _raw_spin_lock+0x2d/0x40 [ 64.703840] ? aio_poll+0x760/0x1420 [ 64.707543] aio_poll+0x760/0x1420 [ 64.711076] ? free_ioctx_users+0x710/0x710 [ 64.715385] ? kmem_cache_alloc+0x12e/0x730 [ 64.719690] ? aio_setup_rw+0x170/0x170 [ 64.723648] ? zap_class+0x640/0x640 [ 64.727344] ? mark_held_locks+0x130/0x130 [ 64.731569] ? zap_class+0x640/0x640 [ 64.735267] ? find_held_lock+0x36/0x1c0 [ 64.739329] ? find_held_lock+0x36/0x1c0 [ 64.743386] ? __might_fault+0x12b/0x1e0 [ 64.747453] ? lock_downgrade+0x900/0x900 [ 64.751596] ? lock_release+0xa00/0xa00 [ 64.755552] ? perf_trace_sched_process_exec+0x860/0x860 [ 64.760986] ? kasan_check_read+0x11/0x20 [ 64.765117] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 64.770393] io_submit_one+0xa49/0xf80 [ 64.774267] ? io_submit_one+0xa49/0xf80 [ 64.778315] ? aio_poll+0x1420/0x1420 [ 64.782107] ? __might_fault+0x12b/0x1e0 [ 64.786150] ? lock_downgrade+0x900/0x900 [ 64.790292] ? perf_trace_sched_process_exec+0x860/0x860 [ 64.795750] __x64_sys_io_submit+0x1b7/0x580 [ 64.800143] ? __ia32_sys_io_destroy+0x580/0x580 [ 64.804886] ? trace_hardirqs_on+0xbd/0x310 [ 64.809202] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 64.814742] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 64.820121] ? trace_hardirqs_off_caller+0x310/0x310 [ 64.825210] do_syscall_64+0x1b9/0x820 [ 64.829101] ? __ia32_sys_io_destroy+0x580/0x580 [ 64.833844] ? do_syscall_64+0x1b9/0x820 [ 64.837891] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 64.843241] ? syscall_return_slowpath+0x5e0/0x5e0 [ 64.848157] ? trace_hardirqs_on_caller+0x310/0x310 [ 64.853158] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 64.858160] ? post_copy_siginfo_from_user.isra.25.part.26+0x250/0x250 [ 64.864808] ? __switch_to_asm+0x40/0x70 [ 64.868854] ? __switch_to_asm+0x34/0x70 [ 64.872902] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 64.877737] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 64.882915] RIP: 0033:0x457569 [ 64.886092] Code: fd b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 cb b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 64.904999] RSP: 002b:00007f1269e47c78 EFLAGS: 00000246 ORIG_RAX: 00000000000000d1 [ 64.912701] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000457569 [ 64.920044] RDX: 0000000020000b00 RSI: 0000000000000001 RDI: 00007f1269e6a000 [ 64.927305] RBP: 000000000072c040 R08: 0000000000000000 R09: 0000000000000000 [ 64.934564] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f1269e486d4 [ 64.941829] R13: 00000000004be7ed R14: 00000000004ced68 R15: 00000000ffffffff 2018/12/03 12:56:26 executed programs: 68 [ 65.010361] kobject: 'loop3' (00000000140c606e): kobject_uevent_env [ 65.016941] kobject: 'loop3' (00000000140c606e): fill_kobj_path: path = '/devices/virtual/block/loop3' [ 65.045622] kobject: 'loop0' (000000005b12667a): kobject_uevent_env [ 65.053945] kobject: 'loop0' (000000005b12667a): fill_kobj_path: path = '/devices/virtual/block/loop0' [ 65.064542] kobject: 'loop4' (00000000695a7e2c): kobject_uevent_env [ 65.071760] kobject: 'loop4' (00000000695a7e2c): fill_kobj_path: path = '/devices/virtual/block/loop4' [ 65.081893] kobject: 'loop2' (00000000aa401597): kobject_uevent_env [ 65.088574] kobject: 'loop2' (00000000aa401597): fill_kobj_path: path = '/devices/virtual/block/loop2' [ 65.098682] kobject: 'loop5' (00000000c209bc85): kobject_uevent_env [ 65.105105] kobject: 'loop5' (00000000c209bc85): fill_kobj_path: path = '/devices/virtual/block/loop5' [ 65.115888] kobject: 'loop1' (0000000010617f32): kobject_uevent_env [ 65.127605] kobject: 'loop1' (0000000010617f32): fill_kobj_path: path = '/devices/virtual/block/loop1' [ 65.940913] kobject: 'loop3' (00000000140c606e): kobject_uevent_env [ 65.947600] kobject: 'loop3' (00000000140c606e): fill_kobj_path: path = '/devices/virtual/block/loop3' [ 65.967263] kobject: 'loop0' (000000005b12667a): kobject_uevent_env [ 65.975497] kobject: 'loop0' (000000005b12667a): fill_kobj_path: path = '/devices/virtual/block/loop0' [ 65.988778] kobject: 'loop4' (00000000695a7e2c): kobject_uevent_env [ 65.995419] kobject: 'loop4' (00000000695a7e2c): fill_kobj_path: path = '/devices/virtual/block/loop4' [ 66.007254] kobject: 'loop5' (00000000c209bc85): kobject_uevent_env [ 66.015543] kobject: 'loop5' (00000000c209bc85): fill_kobj_path: path = '/devices/virtual/block/loop5' [ 66.027876] kobject: 'loop2' (00000000aa401597): kobject_uevent_env [ 66.034463] kobject: 'loop2' (00000000aa401597): fill_kobj_path: path = '/devices/virtual/block/loop2' [ 66.045467] kobject: 'loop1' (0000000010617f32): kobject_uevent_env [ 66.057636] kobject: 'loop1' (0000000010617f32): fill_kobj_path: path = '/devices/virtual/block/loop1' [ 66.871051] kobject: 'loop5' (00000000c209bc85): kobject_uevent_env [ 66.880524] kobject: 'loop5' (00000000c209bc85): fill_kobj_path: path = '/devices/virtual/block/loop5' [ 66.895272] kobject: 'loop3' (00000000140c606e): kobject_uevent_env [ 66.903157] kobject: 'loop3' (00000000140c606e): fill_kobj_path: path = '/devices/virtual/block/loop3' [ 66.915313] kobject: 'loop4' (00000000695a7e2c): kobject_uevent_env [ 66.922188] kobject: 'loop4' (00000000695a7e2c): fill_kobj_path: path = '/devices/virtual/block/loop4' [ 66.934082] kobject: 'loop0' (000000005b12667a): kobject_uevent_env [ 66.941297] kobject: 'loop0' (000000005b12667a): fill_kobj_path: path = '/devices/virtual/block/loop0' [ 66.951381] kobject: 'loop2' (00000000aa401597): kobject_uevent_env [ 66.959003] kobject: 'loop2' (00000000aa401597): fill_kobj_path: path = '/devices/virtual/block/loop2' [ 66.977353] kobject: 'loop1' (0000000010617f32): kobject_uevent_env [ 66.988719] kobject: 'loop1' (0000000010617f32): fill_kobj_path: path = '/devices/virtual/block/loop1' [ 67.800306] kobject: 'loop3' (00000000140c606e): kobject_uevent_env [ 67.806877] kobject: 'loop3' (00000000140c606e): fill_kobj_path: path = '/devices/virtual/block/loop3' [ 67.827478] kobject: 'loop5' (00000000c209bc85): kobject_uevent_env [ 67.834699] kobject: 'loop5' (00000000c209bc85): fill_kobj_path: path = '/devices/virtual/block/loop5' [ 67.846134] kobject: 'loop4' (00000000695a7e2c): kobject_uevent_env [ 67.853851] kobject: 'loop4' (00000000695a7e2c): fill_kobj_path: path = '/devices/virtual/block/loop4' [ 67.869705] kobject: 'loop0' (000000005b12667a): kobject_uevent_env [ 67.876154] kobject: 'loop0' (000000005b12667a): fill_kobj_path: path = '/devices/virtual/block/loop0' [ 67.886969] kobject: 'loop2' (00000000aa401597): kobject_uevent_env [ 67.893471] kobject: 'loop2' (00000000aa401597): fill_kobj_path: path = '/devices/virtual/block/loop2' [ 67.907983] kobject: 'loop1' (0000000010617f32): kobject_uevent_env [ 67.918053] kobject: 'loop1' (0000000010617f32): fill_kobj_path: path = '/devices/virtual/block/loop1' [ 68.720550] kobject: 'loop4' (00000000695a7e2c): kobject_uevent_env [ 68.727143] kobject: 'loop4' (00000000695a7e2c): fill_kobj_path: path = '/devices/virtual/block/loop4' [ 68.744826] kobject: 'loop5' (00000000c209bc85): kobject_uevent_env [ 68.754611] kobject: 'loop5' (00000000c209bc85): fill_kobj_path: path = '/devices/virtual/block/loop5' [ 68.764875] kobject: 'loop3' (00000000140c606e): kobject_uevent_env [ 68.771497] kobject: 'loop3' (00000000140c606e): fill_kobj_path: path = '/devices/virtual/block/loop3' [ 68.782628] kobject: 'loop0' (000000005b12667a): kobject_uevent_env [ 68.790934] kobject: 'loop0' (000000005b12667a): fill_kobj_path: path = '/devices/virtual/block/loop0' [ 68.808921] kobject: 'loop2' (00000000aa401597): kobject_uevent_env [ 68.815499] kobject: 'loop2' (00000000aa401597): fill_kobj_path: path = '/devices/virtual/block/loop2' [ 68.826700] kobject: 'loop1' (0000000010617f32): kobject_uevent_env [ 68.833993] kobject: 'loop1' (0000000010617f32): fill_kobj_path: path = '/devices/virtual/block/loop1' [ 69.651234] kobject: 'loop4' (00000000695a7e2c): kobject_uevent_env [ 69.657886] kobject: 'loop4' (00000000695a7e2c): fill_kobj_path: path = '/devices/virtual/block/loop4' [ 69.672810] kobject: 'loop5' (00000000c209bc85): kobject_uevent_env [ 69.680263] kobject: 'loop5' (00000000c209bc85): fill_kobj_path: path = '/devices/virtual/block/loop5' [ 69.691987] kobject: 'loop3' (00000000140c606e): kobject_uevent_env [ 69.700989] kobject: 'loop3' (00000000140c606e): fill_kobj_path: path = '/devices/virtual/block/loop3' [ 69.719669] kobject: 'loop0' (000000005b12667a): kobject_uevent_env [ 69.726240] kobject: 'loop0' (000000005b12667a): fill_kobj_path: path = '/devices/virtual/block/loop0' [ 69.736507] kobject: 'loop2' (00000000aa401597): kobject_uevent_env [ 69.743231] kobject: 'loop2' (00000000aa401597): fill_kobj_path: path = '/devices/virtual/block/loop2' [ 69.754502] kobject: 'loop1' (0000000010617f32): kobject_uevent_env [ 69.761789] kobject: 'loop1' (0000000010617f32): fill_kobj_path: path = '/devices/virtual/block/loop1' 2018/12/03 12:56:32 executed programs: 104 [ 70.590992] kobject: 'loop4' (00000000695a7e2c): kobject_uevent_env [ 70.597571] kobject: 'loop4' (00000000695a7e2c): fill_kobj_path: path = '/devices/virtual/block/loop4' [ 70.612884] kobject: 'loop5' (00000000c209bc85): kobject_uevent_env [ 70.626870] kobject: 'loop5' (00000000c209bc85): fill_kobj_path: path = '/devices/virtual/block/loop5' [ 70.644729] kobject: 'loop0' (000000005b12667a): kobject_uevent_env [ 70.653687] kobject: 'loop0' (000000005b12667a): fill_kobj_path: path = '/devices/virtual/block/loop0' [ 70.664898] kobject: 'loop3' (00000000140c606e): kobject_uevent_env [ 70.672249] kobject: 'loop3' (00000000140c606e): fill_kobj_path: path = '/devices/virtual/block/loop3' [ 70.682786] kobject: 'loop2' (00000000aa401597): kobject_uevent_env [ 70.690404] kobject: 'loop2' (00000000aa401597): fill_kobj_path: path = '/devices/virtual/block/loop2' [ 70.700314] kobject: 'loop1' (0000000010617f32): kobject_uevent_env [ 70.706864] kobject: 'loop1' (0000000010617f32): fill_kobj_path: path = '/devices/virtual/block/loop1' [ 71.521444] kobject: 'loop4' (00000000695a7e2c): kobject_uevent_env [ 71.528361] kobject: 'loop4' (00000000695a7e2c): fill_kobj_path: path = '/devices/virtual/block/loop4' [ 71.542835] kobject: 'loop5' (00000000c209bc85): kobject_uevent_env [ 71.550666] kobject: 'loop5' (00000000c209bc85): fill_kobj_path: path = '/devices/virtual/block/loop5' [ 71.569384] kobject: 'loop0' (000000005b12667a): kobject_uevent_env [ 71.575980] kobject: 'loop0' (000000005b12667a): fill_kobj_path: path = '/devices/virtual/block/loop0' [ 71.586959] kobject: 'loop3' (00000000140c606e): kobject_uevent_env [ 71.594274] kobject: 'loop3' (00000000140c606e): fill_kobj_path: path = '/devices/virtual/block/loop3' [ 71.610659] kobject: 'loop2' (00000000aa401597): kobject_uevent_env [ 71.618164] kobject: 'loop2' (00000000aa401597): fill_kobj_path: path = '/devices/virtual/block/loop2' [ 71.633815] kobject: 'loop1' (0000000010617f32): kobject_uevent_env [ 71.645953] kobject: 'loop1' (0000000010617f32): fill_kobj_path: path = '/devices/virtual/block/loop1' [ 72.450334] kobject: 'loop4' (00000000695a7e2c): kobject_uevent_env [ 72.456930] kobject: 'loop4' (00000000695a7e2c): fill_kobj_path: path = '/devices/virtual/block/loop4' [ 72.473168] kobject: 'loop5' (00000000c209bc85): kobject_uevent_env [ 72.486700] kobject: 'loop5' (00000000c209bc85): fill_kobj_path: path = '/devices/virtual/block/loop5' [ 72.497429] kobject: 'loop0' (000000005b12667a): kobject_uevent_env [ 72.504627] kobject: 'loop0' (000000005b12667a): fill_kobj_path: path = '/devices/virtual/block/loop0' [ 72.533450] kobject: 'loop1' (0000000010617f32): kobject_uevent_env [ 72.545209] kobject: 'loop1' (0000000010617f32): fill_kobj_path: path = '/devices/virtual/block/loop1' [ 72.555662] kobject: 'loop2' (00000000aa401597): kobject_uevent_env [ 72.562612] kobject: 'loop2' (00000000aa401597): fill_kobj_path: path = '/devices/virtual/block/loop2' [ 72.572769] kobject: 'loop3' (00000000140c606e): kobject_uevent_env [ 72.579776] kobject: 'loop3' (00000000140c606e): fill_kobj_path: path = '/devices/virtual/block/loop3' [ 73.401021] kobject: 'loop4' (00000000695a7e2c): kobject_uevent_env [ 73.408427] kobject: 'loop4' (00000000695a7e2c): fill_kobj_path: path = '/devices/virtual/block/loop4' [ 73.422353] kobject: 'loop5' (00000000c209bc85): kobject_uevent_env [ 73.429667] kobject: 'loop5' (00000000c209bc85): fill_kobj_path: path = '/devices/virtual/block/loop5' [ 73.439915] kobject: 'loop0' (000000005b12667a): kobject_uevent_env [ 73.447515] kobject: 'loop0' (000000005b12667a): fill_kobj_path: path = '/devices/virtual/block/loop0' [ 73.475475] kobject: 'loop2' (00000000aa401597): kobject_uevent_env [ 73.482742] kobject: 'loop2' (00000000aa401597): fill_kobj_path: path = '/devices/virtual/block/loop2' [ 73.500099] kobject: 'loop1' (0000000010617f32): kobject_uevent_env [ 73.506526] kobject: 'loop1' (0000000010617f32): fill_kobj_path: path = '/devices/virtual/block/loop1' [ 73.521350] kobject: 'loop3' (00000000140c606e): kobject_uevent_env [ 73.527853] kobject: 'loop3' (00000000140c606e): fill_kobj_path: path = '/devices/virtual/block/loop3'