Warning: Permanently added '[localhost]:63435' (ED25519) to the list of known hosts. 1970/01/01 00:06:20 parsed 1 programs [ 384.213251][ T29] audit: type=1400 audit(384.120:100): avc: denied { unlink } for pid=4155 comm="syz-executor" name="swap-file" dev="vda" ino=811 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:unlabeled_t tclass=file permissive=1 trawcon="root:object_r:swapfile_t" Setting up swapspace version 1, size = 127995904 bytes [ 393.412003][ T4155] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 407.208532][ T29] audit: type=1401 audit(407.120:101): op=setxattr invalid_context="u:object_r:app_data_file:s0:c512,c768" [ 413.934574][ T4360] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 413.950447][ T4360] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 415.150363][ T4360] hsr_slave_0: entered promiscuous mode [ 415.153148][ T4360] hsr_slave_1: entered promiscuous mode [ 415.486734][ T4360] netdevsim netdevsim1 netdevsim0: renamed from eth0 [ 415.518124][ T4360] netdevsim netdevsim1 netdevsim1: renamed from eth1 [ 415.530054][ T4360] netdevsim netdevsim1 netdevsim2: renamed from eth2 [ 415.543730][ T4360] netdevsim netdevsim1 netdevsim3: renamed from eth3 [ 416.550746][ T4360] 8021q: adding VLAN 0 to HW filter on device bond0 [ 419.857167][ T4360] veth0_vlan: entered promiscuous mode [ 419.877862][ T4360] veth1_vlan: entered promiscuous mode [ 419.979890][ T4360] veth0_macvtap: entered promiscuous mode [ 419.987962][ T4360] veth1_macvtap: entered promiscuous mode [ 420.055216][ T4498] netdevsim netdevsim1 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 420.059023][ T4498] netdevsim netdevsim1 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 420.062840][ T4498] netdevsim netdevsim1 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 420.066958][ T4498] netdevsim netdevsim1 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 420.451631][ T1683] netdevsim netdevsim1 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 420.503650][ T1683] netdevsim netdevsim1 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 420.585121][ T1683] netdevsim netdevsim1 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 420.656664][ T1683] netdevsim netdevsim1 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 421.049692][ T1683] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 421.073553][ T1683] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 421.083671][ T1683] bond0 (unregistering): Released all slaves [ 421.152201][ T1683] hsr_slave_0: left promiscuous mode [ 421.159489][ T1683] hsr_slave_1: left promiscuous mode [ 421.173109][ T1683] veth1_macvtap: left promiscuous mode [ 421.178434][ T1683] veth0_macvtap: left promiscuous mode [ 421.182436][ T1683] veth1_vlan: left promiscuous mode [ 421.183785][ T1683] veth0_vlan: left promiscuous mode 1970/01/01 00:07:07 executed programs: 0 [ 429.739772][ T4758] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 429.750344][ T4758] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 430.699875][ T4758] hsr_slave_0: entered promiscuous mode [ 430.702577][ T4758] hsr_slave_1: entered promiscuous mode [ 431.385210][ T4758] netdevsim netdevsim1 netdevsim0: renamed from eth0 [ 431.404912][ T4758] netdevsim netdevsim1 netdevsim1: renamed from eth1 [ 431.436934][ T4758] netdevsim netdevsim1 netdevsim2: renamed from eth2 [ 431.449718][ T4758] netdevsim netdevsim1 netdevsim3: renamed from eth3 [ 432.142293][ T4758] 8021q: adding VLAN 0 to HW filter on device bond0 [ 441.404215][ T4758] veth0_vlan: entered promiscuous mode [ 441.443328][ T4758] veth1_vlan: entered promiscuous mode [ 441.599874][ T4758] veth0_macvtap: entered promiscuous mode [ 441.622471][ T4758] veth1_macvtap: entered promiscuous mode [ 441.773569][ T1683] netdevsim netdevsim1 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 441.806769][ T1683] netdevsim netdevsim1 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 441.812962][ T1683] netdevsim netdevsim1 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 441.814179][ T1683] netdevsim netdevsim1 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 1970/01/01 00:07:22 executed programs: 2 [ 442.627593][ T29] audit: type=1400 audit(442.530:102): avc: denied { prog_load } for pid=5115 comm="syz.1.17" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=bpf permissive=1 [ 442.629352][ T29] audit: type=1400 audit(442.530:103): avc: denied { bpf } for pid=5115 comm="syz.1.17" capability=39 scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=capability2 permissive=1 [ 442.633418][ T29] audit: type=1400 audit(442.530:104): avc: denied { perfmon } for pid=5115 comm="syz.1.17" capability=38 scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=capability2 permissive=1 [ 442.691085][ T29] audit: type=1400 audit(442.600:105): avc: denied { prog_run } for pid=5115 comm="syz.1.17" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=bpf permissive=1 1970/01/01 00:07:27 executed programs: 17 1970/01/01 00:07:32 executed programs: 32 1970/01/01 00:07:38 executed programs: 48 1970/01/01 00:07:43 executed programs: 58 1970/01/01 00:07:48 executed programs: 68 1970/01/01 00:07:53 executed programs: 80 1970/01/01 00:07:59 executed programs: 93 1970/01/01 00:08:04 executed programs: 105 1970/01/01 00:08:09 executed programs: 118 1970/01/01 00:08:15 executed programs: 129 1970/01/01 00:08:20 executed programs: 138 1970/01/01 00:08:25 executed programs: 149 1970/01/01 00:08:30 executed programs: 159 1970/01/01 00:08:36 executed programs: 170 1970/01/01 00:08:41 executed programs: 181 1970/01/01 00:08:46 executed programs: 196 1970/01/01 00:08:51 executed programs: 209 1970/01/01 00:08:56 executed programs: 221 1970/01/01 00:09:02 executed programs: 233 1970/01/01 00:09:07 executed programs: 245 1970/01/01 00:09:12 executed programs: 257 1970/01/01 00:09:17 executed programs: 268 1970/01/01 00:09:22 executed programs: 279 1970/01/01 00:09:28 executed programs: 288 1970/01/01 00:09:33 executed programs: 298 1970/01/01 00:09:38 executed programs: 307 1970/01/01 00:09:43 executed programs: 316 1970/01/01 00:09:49 executed programs: 326 1970/01/01 00:09:54 executed programs: 338 1970/01/01 00:09:59 executed programs: 348 1970/01/01 00:10:04 executed programs: 359 1970/01/01 00:10:10 executed programs: 371 1970/01/01 00:10:15 executed programs: 381 1970/01/01 00:10:20 executed programs: 390 1970/01/01 00:10:26 executed programs: 400 1970/01/01 00:10:31 executed programs: 409 1970/01/01 00:10:36 executed programs: 418 1970/01/01 00:10:42 executed programs: 427 1970/01/01 00:10:47 executed programs: 439 1970/01/01 00:10:52 executed programs: 456 1970/01/01 00:10:57 executed programs: 470 1970/01/01 00:11:03 executed programs: 481 1970/01/01 00:11:08 executed programs: 493 1970/01/01 00:11:13 executed programs: 500 1970/01/01 00:11:18 executed programs: 510 1970/01/01 00:11:24 executed programs: 521 1970/01/01 00:11:29 executed programs: 532 1970/01/01 00:11:34 executed programs: 545 1970/01/01 00:11:39 executed programs: 557 1970/01/01 00:11:45 executed programs: 569 1970/01/01 00:11:50 executed programs: 582 1970/01/01 00:11:55 executed programs: 595 [ 719.380497][ T1992] netdevsim netdevsim1 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 719.449701][ T1992] netdevsim netdevsim1 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 719.549242][ T1992] netdevsim netdevsim1 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 719.681065][ T1992] netdevsim netdevsim1 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 720.484483][ T1992] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 720.494421][ T1992] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 720.504568][ T1992] bond0 (unregistering): Released all slaves [ 720.634649][ T1992] hsr_slave_0: left promiscuous mode [ 720.648748][ T1992] hsr_slave_1: left promiscuous mode [ 720.677545][ T1992] veth1_macvtap: left promiscuous mode [ 720.678265][ T1992] veth0_macvtap: left promiscuous mode [ 720.678541][ T1992] veth1_vlan: left promiscuous mode [ 720.678721][ T1992] veth0_vlan: left promiscuous mode [ 726.424582][ T6895] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 726.452760][ T6895] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 729.031622][ T6895] hsr_slave_0: entered promiscuous mode [ 729.034009][ T6895] hsr_slave_1: entered promiscuous mode [ 730.781831][ T6895] netdevsim netdevsim1 netdevsim0: renamed from eth0 [ 730.812626][ T6895] netdevsim netdevsim1 netdevsim1: renamed from eth1 [ 730.832118][ T6895] netdevsim netdevsim1 netdevsim2: renamed from eth2 [ 730.844706][ T6895] netdevsim netdevsim1 netdevsim3: renamed from eth3 [ 733.911443][ T6895] 8021q: adding VLAN 0 to HW filter on device bond0 [ 743.103645][ T6895] veth0_vlan: entered promiscuous mode [ 743.163034][ T6895] veth1_vlan: entered promiscuous mode [ 743.486035][ T6895] veth0_macvtap: entered promiscuous mode [ 743.560606][ T6895] veth1_macvtap: entered promiscuous mode [ 743.681477][ T38] netdevsim netdevsim1 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 743.682540][ T38] netdevsim netdevsim1 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 743.683962][ T38] netdevsim netdevsim1 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 743.684334][ T38] netdevsim netdevsim1 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 1970/01/01 00:12:24 executed programs: 602 1970/01/01 00:12:29 executed programs: 622 1970/01/01 00:12:35 executed programs: 637 1970/01/01 00:12:40 executed programs: 651 1970/01/01 00:12:45 executed programs: 660 1970/01/01 00:12:50 executed programs: 671 1970/01/01 00:12:55 executed programs: 681 1970/01/01 00:13:01 executed programs: 690 1970/01/01 00:13:06 executed programs: 700 1970/01/01 00:13:12 executed programs: 711 1970/01/01 00:13:17 executed programs: 721 1970/01/01 00:13:22 executed programs: 733 1970/01/01 00:13:28 executed programs: 743 1970/01/01 00:13:33 executed programs: 753 1970/01/01 00:13:38 executed programs: 763 1970/01/01 00:13:43 executed programs: 775 1970/01/01 00:13:49 executed programs: 785 1970/01/01 00:13:54 executed programs: 797 1970/01/01 00:13:59 executed programs: 808 1970/01/01 00:14:04 executed programs: 819 1970/01/01 00:14:10 executed programs: 830 1970/01/01 00:14:15 executed programs: 843 1970/01/01 00:14:20 executed programs: 852 1970/01/01 00:14:25 executed programs: 860 1970/01/01 00:14:31 executed programs: 870 1970/01/01 00:14:36 executed programs: 879 1970/01/01 00:14:41 executed programs: 890 1970/01/01 00:14:46 executed programs: 899 1970/01/01 00:14:51 executed programs: 912 1970/01/01 00:14:57 executed programs: 925 1970/01/01 00:15:02 executed programs: 937 1970/01/01 00:15:08 executed programs: 950 1970/01/01 00:15:13 executed programs: 964 1970/01/01 00:15:19 executed programs: 973 1970/01/01 00:15:24 executed programs: 982 1970/01/01 00:15:29 executed programs: 992 1970/01/01 00:15:34 executed programs: 1003 1970/01/01 00:15:39 executed programs: 1013 1970/01/01 00:15:44 executed programs: 1022 1970/01/01 00:15:50 executed programs: 1031 1970/01/01 00:15:55 executed programs: 1041 1970/01/01 00:16:00 executed programs: 1051 1970/01/01 00:16:05 executed programs: 1061 1970/01/01 00:16:11 executed programs: 1072 1970/01/01 00:16:16 executed programs: 1082 1970/01/01 00:16:21 executed programs: 1090 1970/01/01 00:16:26 executed programs: 1099 1970/01/01 00:16:32 executed programs: 1109 1970/01/01 00:16:37 executed programs: 1120 1970/01/01 00:16:42 executed programs: 1130 1970/01/01 00:16:47 executed programs: 1140 [ 1008.567184][ T30] INFO: task kworker/1:11:5164 blocked for more than 430 seconds. [ 1008.569724][ T30] Not tainted syzkaller #0 [ 1008.576190][ T30] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 1008.579055][ T30] task:kworker/1:11 state:D stack:0 pid:5164 tgid:5164 ppid:2 task_flags:0x4208060 flags:0x00000000 [ 1008.583887][ T30] Workqueue: events bpf_prog_free_deferred [ 1008.596973][ T30] Call trace: [ 1008.598460][ T30] [<81ab1a1c>] (__schedule) from [<81ab2cc8>] (schedule+0x2c/0x130) [ 1008.599690][ T30] r10:dfd01d84 r9:829174a8 r8:60000113 r7:829174a8 r6:dfd01d8c r5:84f58c00 [ 1008.600494][ T30] r4:84f58c00 [ 1008.601105][ T30] [<81ab2c9c>] (schedule) from [<81ab2e50>] (schedule_preempt_disabled+0x18/0x24) [ 1008.616496][ T30] r5:84f58c00 r4:829174a4 [ 1008.616843][ T30] [<81ab2e38>] (schedule_preempt_disabled) from [<81ab64d4>] (__mutex_lock.constprop.0+0x658/0xf8c) [ 1008.617073][ T30] [<81ab5e7c>] (__mutex_lock.constprop.0) from [<81ab6edc>] (__mutex_lock_slowpath+0x14/0x18) [ 1008.617179][ T30] r10:8280c9a4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:dfd01e08 [ 1008.617266][ T30] r4:00000000 [ 1008.617285][ T30] [<81ab6ec8>] (__mutex_lock_slowpath) from [<81ab6f1c>] (mutex_lock+0x3c/0x40) [ 1008.617374][ T30] [<81ab6ee0>] (mutex_lock) from [<804f4260>] (_vm_unmap_aliases+0x68/0x240) [ 1008.617430][ T30] [<804f41f8>] (_vm_unmap_aliases) from [<804f8048>] (vfree+0x16c/0x210) [ 1008.617543][ T30] r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:86143ec0 [ 1008.617576][ T30] r4:00000000 [ 1008.617592][ T30] [<804f7edc>] (vfree) from [<80563e54>] (execmem_free+0x30/0x50) [ 1008.617667][ T30] r9:83018605 r8:84f58c00 r7:00000000 r6:83018600 r5:00001000 r4:7f06b000 [ 1008.617793][ T30] [<80563e24>] (execmem_free) from [<803cb1cc>] (bpf_jit_free_exec+0x10/0x14) [ 1008.617862][ T30] r5:00001000 r4:dfb61000 [ 1008.618065][ T30] [<803cb1bc>] (bpf_jit_free_exec) from [<803cb5ac>] (bpf_jit_free+0x68/0xe4) [ 1008.618196][ T30] [<803cb544>] (bpf_jit_free) from [<803cc6d4>] (bpf_prog_free_deferred+0x140/0x158) [ 1008.618256][ T30] r5:8610a38c r4:85f05a00 [ 1008.618291][ T30] [<803cc594>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4) [ 1008.618377][ T30] r7:ddde3b40 r6:83018600 r5:8610a38c r4:85f05a00 [ 1008.618396][ T30] [<80275c04>] (process_one_work) from [<802764f8>] (worker_thread+0x1fc/0x3d8) [ 1008.618467][ T30] r10:61c88647 r9:84f58c00 r8:85f05a2c r7:82804d80 r6:ddde3b40 r5:ddde3b60 [ 1008.618532][ T30] r4:85f05a00 [ 1008.618571][ T30] [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280) [ 1008.618645][ T30] r10:00000000 r9:85f05a00 r8:802762fc r7:e00bde60 r6:85f05a80 r5:84f58c00 [ 1008.618711][ T30] r4:00000001 [ 1008.618738][ T30] [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20) [ 1008.618966][ T30] Exception stack(0xdfd01fb0 to 0xdfd01ff8) [ 1008.619323][ T30] 1fa0: 00000000 00000000 00000000 00000000 [ 1008.619477][ T30] 1fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 [ 1008.619539][ T30] 1fe0: 00000000 00000000 00000000 00000000 00000013 00000000 [ 1008.619640][ T30] r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:8027f5d0 [ 1008.619666][ T30] r4:85f01500 [ 1008.620899][ T30] INFO: task kworker/1:11:5164 is blocked on a mutex likely owned by task kworker/0:89:6010. [ 1008.621180][ T30] task:kworker/0:89 state:R running task stack:0 pid:6010 tgid:6010 ppid:2 task_flags:0x4208060 flags:0x00000000 [ 1008.621380][ T30] Workqueue: events bpf_prog_free_deferred [ 1008.621456][ T30] Call trace: [ 1008.621584][ T30] [<81ab1a1c>] (__schedule) from [<81ab30fc>] (preempt_schedule_irq+0x40/0xa8) [ 1008.621810][ T30] r10:8280c9f8 r9:86195400 r8:80200c04 r7:ea655d54 r6:ffffffff r5:86195400 [ 1008.621946][ T30] r4:00000000 [ 1008.622153][ T30] [<81ab30bc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) [ 1008.622268][ T30] Exception stack(0xea655d20 to 0xea655d68) [ 1008.622317][ T30] 5d20: 93b6d000 ebe11000 00000001 80239018 7f06f000 00000001 82ace204 82acd5e0 [ 1008.622350][ T30] 5d40: 7f06f000 ebe11000 8280c9f8 ea655d9c ea655da0 ea655d70 8022fe10 80239030 [ 1008.622374][ T30] 5d60: 80000113 ffffffff [ 1008.622447][ T30] r5:80000113 r4:80239030 [ 1008.622470][ T30] [<8022fdac>] (flush_tlb_kernel_range) from [<804f4024>] (__purge_vmap_area_lazy+0x284/0x458) [ 1008.622544][ T30] r4:82ace224 [ 1008.622582][ T30] [<804f3da0>] (__purge_vmap_area_lazy) from [<804f43dc>] (_vm_unmap_aliases+0x1e4/0x240) [ 1008.622691][ T30] r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:ea655dc0 r5:ea655e08 [ 1008.622720][ T30] r4:ea655dc0 [ 1008.622738][ T30] [<804f41f8>] (_vm_unmap_aliases) from [<804f8048>] (vfree+0x16c/0x210) [ 1008.622811][ T30] r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:86144440 [ 1008.622851][ T30] r4:00000000 [ 1008.622874][ T30] [<804f7edc>] (vfree) from [<80563e54>] (execmem_free+0x30/0x50) [ 1008.622990][ T30] r9:83018405 r8:86195400 r7:00000000 r6:83018400 r5:00001000 r4:7f069000 [ 1008.623115][ T30] [<80563e24>] (execmem_free) from [<803cb1cc>] (bpf_jit_free_exec+0x10/0x14) [ 1008.623209][ T30] r5:00001000 r4:dfad1000 [ 1008.623231][ T30] [<803cb1bc>] (bpf_jit_free_exec) from [<803cb5ac>] (bpf_jit_free+0x68/0xe4) [ 1008.623324][ T30] [<803cb544>] (bpf_jit_free) from [<803cc6d4>] (bpf_prog_free_deferred+0x140/0x158) [ 1008.623402][ T30] r5:8610938c r4:8613d680 [ 1008.623439][ T30] [<803cc594>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4) [ 1008.623566][ T30] r7:dddcfb40 r6:83018400 r5:8610938c r4:8613d680 [ 1008.623623][ T30] [<80275c04>] (process_one_work) from [<802764f8>] (worker_thread+0x1fc/0x3d8) [ 1008.623705][ T30] r10:61c88647 r9:86195400 r8:8613d6ac r7:82804d80 r6:dddcfb40 r5:dddcfb60 [ 1008.623729][ T30] r4:8613d680 [ 1008.623747][ T30] [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280) [ 1008.623853][ T30] r10:00000000 r9:8613d680 r8:802762fc r7:ea661e60 r6:8614a180 r5:86195400 [ 1008.623877][ T30] r4:00000001 [ 1008.623894][ T30] [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20) [ 1008.623976][ T30] Exception stack(0xea655fb0 to 0xea655ff8) [ 1008.624010][ T30] 5fa0: 00000000 00000000 00000000 00000000 [ 1008.624047][ T30] 5fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 [ 1008.624079][ T30] 5fe0: 00000000 00000000 00000000 00000000 00000013 00000000 [ 1008.624116][ T30] r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:8027f5d0 [ 1008.624174][ T30] r4:861409c0 [ 1008.624927][ T30] INFO: task kworker/0:87:6003 blocked for more than 430 seconds. [ 1008.625040][ T30] Not tainted syzkaller #0 [ 1008.625071][ T30] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 1008.625090][ T30] task:kworker/0:87 state:D stack:0 pid:6003 tgid:6003 ppid:2 task_flags:0x4208060 flags:0x00000000 [ 1008.625168][ T30] Workqueue: events bpf_prog_free_deferred [ 1008.625322][ T30] Call trace: [ 1008.625354][ T30] [<81ab1a1c>] (__schedule) from [<81ab2cc8>] (schedule+0x2c/0x130) [ 1008.625473][ T30] r10:ea661d84 r9:829174a8 r8:60000013 r7:829174a8 r6:ea661d8c r5:86193000 [ 1008.625561][ T30] r4:86193000 [ 1008.648449][ T30] [<81ab2c9c>] (schedule) from [<81ab2e50>] (schedule_preempt_disabled+0x18/0x24) [ 1008.648665][ T30] r5:86193000 r4:829174a4 [ 1008.648687][ T30] [<81ab2e38>] (schedule_preempt_disabled) from [<81ab64d4>] (__mutex_lock.constprop.0+0x658/0xf8c) [ 1008.648780][ T30] [<81ab5e7c>] (__mutex_lock.constprop.0) from [<81ab6edc>] (__mutex_lock_slowpath+0x14/0x18) [ 1008.648911][ T30] r10:8280c9a4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:ea661e08 [ 1008.648943][ T30] r4:00000000 [ 1008.648964][ T30] [<81ab6ec8>] (__mutex_lock_slowpath) from [<81ab6f1c>] (mutex_lock+0x3c/0x40) [ 1008.649072][ T30] [<81ab6ee0>] (mutex_lock) from [<804f4260>] (_vm_unmap_aliases+0x68/0x240) [ 1008.649162][ T30] [<804f41f8>] (_vm_unmap_aliases) from [<804f8048>] (vfree+0x16c/0x210) [ 1008.649242][ T30] r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:86140a40 [ 1008.649265][ T30] r4:00000000 [ 1008.649286][ T30] [<804f7edc>] (vfree) from [<80563e54>] (execmem_free+0x30/0x50) [ 1008.649365][ T30] r9:83018405 r8:86193000 r7:00000000 r6:83018400 r5:00001000 r4:7f071000 [ 1008.649385][ T30] [<80563e24>] (execmem_free) from [<803cb1cc>] (bpf_jit_free_exec+0x10/0x14) [ 1008.649492][ T30] r5:00001000 r4:e01df000 [ 1008.649518][ T30] [<803cb1bc>] (bpf_jit_free_exec) from [<803cb5ac>] (bpf_jit_free+0x68/0xe4) [ 1008.649580][ T30] [<803cb544>] (bpf_jit_free) from [<803cc6d4>] (bpf_prog_free_deferred+0x140/0x158) [ 1008.649643][ T30] r5:860e078c r4:8613d580 [ 1008.649661][ T30] [<803cc594>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4) [ 1008.649748][ T30] r7:dddcfb40 r6:83018400 r5:860e078c r4:8613d580 [ 1008.649770][ T30] [<80275c04>] (process_one_work) from [<802764f8>] (worker_thread+0x1fc/0x3d8) [ 1008.649840][ T30] r10:61c88647 r9:86193000 r8:8613d5ac r7:82804d80 r6:dddcfb40 r5:dddcfb60 [ 1008.649907][ T30] r4:8613d580 [ 1008.649933][ T30] [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280) [ 1008.650002][ T30] r10:00000000 r9:8613d580 r8:802762fc r7:ea665e60 r6:8614af80 r5:86193000 [ 1008.650025][ T30] r4:00000001 [ 1008.650044][ T30] [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20) [ 1008.650099][ T30] Exception stack(0xea661fb0 to 0xea661ff8) [ 1008.650167][ T30] 1fa0: 00000000 00000000 00000000 00000000 [ 1008.650207][ T30] 1fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 [ 1008.650239][ T30] 1fe0: 00000000 00000000 00000000 00000000 00000013 00000000 [ 1008.650304][ T30] r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:8027f5d0 [ 1008.650368][ T30] r4:86144580 [ 1008.651133][ T30] INFO: task kworker/0:87:6003 is blocked on a mutex likely owned by task kworker/0:89:6010. [ 1008.651183][ T30] task:kworker/0:89 state:R running task stack:0 pid:6010 tgid:6010 ppid:2 task_flags:0x4208060 flags:0x00000000 [ 1008.651340][ T30] Workqueue: events bpf_prog_free_deferred [ 1008.651452][ T30] Call trace: [ 1008.651520][ T30] [<81ab1a1c>] (__schedule) from [<81ab30fc>] (preempt_schedule_irq+0x40/0xa8) [ 1008.651616][ T30] r10:8280c9f8 r9:86195400 r8:80200c04 r7:ea655d54 r6:ffffffff r5:86195400 [ 1008.651642][ T30] r4:00000000 [ 1008.651661][ T30] [<81ab30bc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) [ 1008.651725][ T30] Exception stack(0xea655d20 to 0xea655d68) [ 1008.651788][ T30] 5d20: 93b6d000 ebe11000 00000001 80239018 7f06f000 00000001 82ace204 82acd5e0 [ 1008.651845][ T30] 5d40: 7f06f000 ebe11000 8280c9f8 ea655d9c ea655da0 ea655d70 8022fe10 80239030 [ 1008.651873][ T30] 5d60: 80000113 ffffffff [ 1008.651903][ T30] r5:80000113 r4:80239030 [ 1008.651922][ T30] [<8022fdac>] (flush_tlb_kernel_range) from [<804f4024>] (__purge_vmap_area_lazy+0x284/0x458) [ 1008.651999][ T30] r4:82ace224 [ 1008.652019][ T30] [<804f3da0>] (__purge_vmap_area_lazy) from [<804f43dc>] (_vm_unmap_aliases+0x1e4/0x240) [ 1008.652092][ T30] r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:ea655dc0 r5:ea655e08 [ 1008.652118][ T30] r4:ea655dc0 [ 1008.652137][ T30] [<804f41f8>] (_vm_unmap_aliases) from [<804f8048>] (vfree+0x16c/0x210) [ 1008.652338][ T30] r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:86144440 [ 1008.652384][ T30] r4:00000000 [ 1008.652412][ T30] [<804f7edc>] (vfree) from [<80563e54>] (execmem_free+0x30/0x50) [ 1008.652498][ T30] r9:83018405 r8:86195400 r7:00000000 r6:83018400 r5:00001000 r4:7f069000 [ 1008.652519][ T30] [<80563e24>] (execmem_free) from [<803cb1cc>] (bpf_jit_free_exec+0x10/0x14) [ 1008.652592][ T30] r5:00001000 r4:dfad1000 [ 1008.652634][ T30] [<803cb1bc>] (bpf_jit_free_exec) from [<803cb5ac>] (bpf_jit_free+0x68/0xe4) [ 1008.652704][ T30] [<803cb544>] (bpf_jit_free) from [<803cc6d4>] (bpf_prog_free_deferred+0x140/0x158) [ 1008.652807][ T30] r5:8610938c r4:8613d680 [ 1008.652878][ T30] [<803cc594>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4) [ 1008.652958][ T30] r7:dddcfb40 r6:83018400 r5:8610938c r4:8613d680 [ 1008.653005][ T30] [<80275c04>] (process_one_work) from [<802764f8>] (worker_thread+0x1fc/0x3d8) [ 1008.653119][ T30] r10:61c88647 r9:86195400 r8:8613d6ac r7:82804d80 r6:dddcfb40 r5:dddcfb60 [ 1008.653148][ T30] r4:8613d680 [ 1008.653167][ T30] [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280) [ 1008.653234][ T30] r10:00000000 r9:8613d680 r8:802762fc r7:ea661e60 r6:8614a180 r5:86195400 [ 1008.653255][ T30] r4:00000001 [ 1008.653272][ T30] [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20) [ 1008.653370][ T30] Exception stack(0xea655fb0 to 0xea655ff8) [ 1008.653408][ T30] 5fa0: 00000000 00000000 00000000 00000000 [ 1008.653440][ T30] 5fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 [ 1008.653473][ T30] 5fe0: 00000000 00000000 00000000 00000000 00000013 00000000 [ 1008.653522][ T30] r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:8027f5d0 [ 1008.653547][ T30] r4:861409c0 [ 1008.653589][ T30] INFO: task kworker/0:91:6015 blocked for more than 430 seconds. [ 1008.653634][ T30] Not tainted syzkaller #0 [ 1008.653661][ T30] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 1008.653680][ T30] task:kworker/0:91 state:D stack:0 pid:6015 tgid:6015 ppid:2 task_flags:0x4208060 flags:0x00000000 [ 1008.653807][ T30] Workqueue: events bpf_prog_free_deferred [ 1008.653904][ T30] Call trace: [ 1008.654014][ T30] [<81ab1a1c>] (__schedule) from [<81ab2cc8>] (schedule+0x2c/0x130) [ 1008.654107][ T30] r10:ea659d84 r9:829174a8 r8:60000013 r7:829174a8 r6:ea659d8c r5:85fc2400 [ 1008.654156][ T30] r4:85fc2400 [ 1008.654218][ T30] [<81ab2c9c>] (schedule) from [<81ab2e50>] (schedule_preempt_disabled+0x18/0x24) [ 1008.654300][ T30] r5:85fc2400 r4:829174a4 [ 1008.654320][ T30] [<81ab2e38>] (schedule_preempt_disabled) from [<81ab64d4>] (__mutex_lock.constprop.0+0x658/0xf8c) [ 1008.654385][ T30] [<81ab5e7c>] (__mutex_lock.constprop.0) from [<81ab6edc>] (__mutex_lock_slowpath+0x14/0x18) [ 1008.654491][ T30] r10:8280c9a4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:ea659e08 [ 1008.654520][ T30] r4:00000000 [ 1008.654632][ T30] [<81ab6ec8>] (__mutex_lock_slowpath) from [<81ab6f1c>] (mutex_lock+0x3c/0x40) [ 1008.654694][ T30] [<81ab6ee0>] (mutex_lock) from [<804f4260>] (_vm_unmap_aliases+0x68/0x240) [ 1008.654750][ T30] [<804f41f8>] (_vm_unmap_aliases) from [<804f8048>] (vfree+0x16c/0x210) [ 1008.654851][ T30] r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:86081040 [ 1008.654881][ T30] r4:00000000 [ 1008.654956][ T30] [<804f7edc>] (vfree) from [<80563e54>] (execmem_free+0x30/0x50) [ 1008.655041][ T30] r9:83018405 r8:85fc2400 r7:00000000 r6:83018400 r5:00001000 r4:7f073000 [ 1008.655061][ T30] [<80563e24>] (execmem_free) from [<803cb1cc>] (bpf_jit_free_exec+0x10/0x14) [ 1008.655128][ T30] r5:00001000 r4:e836d000 [ 1008.655151][ T30] [<803cb1bc>] (bpf_jit_free_exec) from [<803cb5ac>] (bpf_jit_free+0x68/0xe4) [ 1008.655250][ T30] [<803cb544>] (bpf_jit_free) from [<803cc6d4>] (bpf_prog_free_deferred+0x140/0x158) [ 1008.655319][ T30] r5:860fb78c r4:8613db00 [ 1008.655338][ T30] [<803cc594>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4) [ 1008.655411][ T30] r7:dddcfb40 r6:83018400 r5:860fb78c r4:8613db00 [ 1008.655431][ T30] [<80275c04>] (process_one_work) from [<802764f8>] (worker_thread+0x1fc/0x3d8) [ 1008.655511][ T30] r10:61c88647 r9:85fc2400 r8:8613db2c r7:82804d80 r6:dddcfb40 r5:dddcfb60 [ 1008.682799][ T30] r4:8613db00 [ 1008.682863][ T30] [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280) [ 1008.682940][ T30] r10:00000000 r9:8613db00 r8:802762fc r7:ea669e60 r6:8613db80 r5:85fc2400 [ 1008.682953][ T30] r4:00000001 [ 1008.682961][ T30] [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20) [ 1008.682988][ T30] Exception stack(0xea659fb0 to 0xea659ff8) [ 1008.683009][ T30] 9fa0: 00000000 00000000 00000000 00000000 [ 1008.683028][ T30] 9fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 [ 1008.683044][ T30] 9fe0: 00000000 00000000 00000000 00000000 00000013 00000000 [ 1008.683066][ T30] r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:8027f5d0 [ 1008.683076][ T30] r4:86146b00 [ 1008.683624][ T30] INFO: task kworker/0:91:6015 is blocked on a mutex likely owned by task kworker/0:89:6010. [ 1008.683657][ T30] task:kworker/0:89 state:R running task stack:0 pid:6010 tgid:6010 ppid:2 task_flags:0x4208060 flags:0x00000000 [ 1008.683720][ T30] Workqueue: events bpf_prog_free_deferred [ 1008.683783][ T30] Call trace: [ 1008.683806][ T30] [<81ab1a1c>] (__schedule) from [<81ab30fc>] (preempt_schedule_irq+0x40/0xa8) [ 1008.683894][ T30] r10:8280c9f8 r9:86195400 r8:80200c04 r7:ea655d54 r6:ffffffff r5:86195400 [ 1008.683943][ T30] r4:00000000 [ 1008.683953][ T30] [<81ab30bc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) [ 1008.683983][ T30] Exception stack(0xea655d20 to 0xea655d68) [ 1008.684003][ T30] 5d20: 93b6d000 ebe11000 00000001 80239018 7f06f000 00000001 82ace204 82acd5e0 [ 1008.684022][ T30] 5d40: 7f06f000 ebe11000 8280c9f8 ea655d9c ea655da0 ea655d70 8022fe10 80239030 [ 1008.684067][ T30] 5d60: 80000113 ffffffff [ 1008.684083][ T30] r5:80000113 r4:80239030 [ 1008.684091][ T30] [<8022fdac>] (flush_tlb_kernel_range) from [<804f4024>] (__purge_vmap_area_lazy+0x284/0x458) [ 1008.684131][ T30] r4:82ace224 [ 1008.684158][ T30] [<804f3da0>] (__purge_vmap_area_lazy) from [<804f43dc>] (_vm_unmap_aliases+0x1e4/0x240) [ 1008.684199][ T30] r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:ea655dc0 r5:ea655e08 [ 1008.684211][ T30] r4:ea655dc0 [ 1008.684218][ T30] [<804f41f8>] (_vm_unmap_aliases) from [<804f8048>] (vfree+0x16c/0x210) [ 1008.684264][ T30] r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:86144440 [ 1008.684274][ T30] r4:00000000 [ 1008.684282][ T30] [<804f7edc>] (vfree) from [<80563e54>] (execmem_free+0x30/0x50) [ 1008.684322][ T30] r9:83018405 r8:86195400 r7:00000000 r6:83018400 r5:00001000 r4:7f069000 [ 1008.684331][ T30] [<80563e24>] (execmem_free) from [<803cb1cc>] (bpf_jit_free_exec+0x10/0x14) [ 1008.684365][ T30] r5:00001000 r4:dfad1000 [ 1008.684374][ T30] [<803cb1bc>] (bpf_jit_free_exec) from [<803cb5ac>] (bpf_jit_free+0x68/0xe4) [ 1008.684403][ T30] [<803cb544>] (bpf_jit_free) from [<803cc6d4>] (bpf_prog_free_deferred+0x140/0x158) [ 1008.684432][ T30] r5:8610938c r4:8613d680 [ 1008.684440][ T30] [<803cc594>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4) [ 1008.684478][ T30] r7:dddcfb40 r6:83018400 r5:8610938c r4:8613d680 [ 1008.684667][ T30] [<80275c04>] (process_one_work) from [<802764f8>] (worker_thread+0x1fc/0x3d8) [ 1008.684857][ T30] r10:61c88647 r9:86195400 r8:8613d6ac r7:82804d80 r6:dddcfb40 r5:dddcfb60 [ 1008.684876][ T30] r4:8613d680 [ 1008.684891][ T30] [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280) [ 1008.684945][ T30] r10:00000000 r9:8613d680 r8:802762fc r7:ea661e60 r6:8614a180 r5:86195400 [ 1008.684957][ T30] r4:00000001 [ 1008.684967][ T30] [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20) [ 1008.685018][ T30] Exception stack(0xea655fb0 to 0xea655ff8) [ 1008.685041][ T30] 5fa0: 00000000 00000000 00000000 00000000 [ 1008.685061][ T30] 5fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 [ 1008.685094][ T30] 5fe0: 00000000 00000000 00000000 00000000 00000013 00000000 [ 1008.685135][ T30] r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:8027f5d0 [ 1008.685158][ T30] r4:861409c0 [ 1008.696816][ T30] INFO: task kworker/0:93:6020 blocked for more than 430 seconds. [ 1008.696928][ T30] Not tainted syzkaller #0 [ 1008.696954][ T30] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 1008.696974][ T30] task:kworker/0:93 state:D stack:0 pid:6020 tgid:6020 ppid:2 task_flags:0x4208060 flags:0x00000000 [ 1008.697093][ T30] Workqueue: events bpf_prog_free_deferred [ 1008.697172][ T30] Call trace: [ 1008.697252][ T30] [<81ab1a1c>] (__schedule) from [<81ab2cc8>] (schedule+0x2c/0x130) [ 1008.697349][ T30] r10:ea695d84 r9:829174a8 r8:60000013 r7:829174a8 r6:ea695d8c r5:85fc1800 [ 1008.697372][ T30] r4:85fc1800 [ 1008.697390][ T30] [<81ab2c9c>] (schedule) from [<81ab2e50>] (schedule_preempt_disabled+0x18/0x24) [ 1008.697451][ T30] r5:85fc1800 r4:829174a4 [ 1008.697466][ T30] [<81ab2e38>] (schedule_preempt_disabled) from [<81ab64d4>] (__mutex_lock.constprop.0+0x658/0xf8c) [ 1008.697552][ T30] [<81ab5e7c>] (__mutex_lock.constprop.0) from [<81ab6edc>] (__mutex_lock_slowpath+0x14/0x18) [ 1008.697668][ T30] r10:8280c9a4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:ea695e08 [ 1008.697693][ T30] r4:00000000 [ 1008.697710][ T30] [<81ab6ec8>] (__mutex_lock_slowpath) from [<81ab6f1c>] (mutex_lock+0x3c/0x40) [ 1008.697758][ T30] [<81ab6ee0>] (mutex_lock) from [<804f4260>] (_vm_unmap_aliases+0x68/0x240) [ 1008.697811][ T30] [<804f41f8>] (_vm_unmap_aliases) from [<804f8048>] (vfree+0x16c/0x210) [ 1008.697877][ T30] r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:86081640 [ 1008.697896][ T30] r4:00000000 [ 1008.697912][ T30] [<804f7edc>] (vfree) from [<80563e54>] (execmem_free+0x30/0x50) [ 1008.697981][ T30] r9:83018405 r8:85fc1800 r7:00000000 r6:83018400 r5:00001000 r4:7f075000 [ 1008.698000][ T30] [<80563e24>] (execmem_free) from [<803cb1cc>] (bpf_jit_free_exec+0x10/0x14) [ 1008.698060][ T30] r5:00001000 r4:ea48f000 [ 1008.698077][ T30] [<803cb1bc>] (bpf_jit_free_exec) from [<803cb5ac>] (bpf_jit_free+0x68/0xe4) [ 1008.698159][ T30] [<803cb544>] (bpf_jit_free) from [<803cc6d4>] (bpf_prog_free_deferred+0x140/0x158) [ 1008.698215][ T30] r5:85c09f8c r4:8613da80 [ 1008.698231][ T30] [<803cc594>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4) [ 1008.698295][ T30] r7:dddcfb40 r6:83018400 r5:85c09f8c r4:8613da80 [ 1008.698321][ T30] [<80275c04>] (process_one_work) from [<802764f8>] (worker_thread+0x1fc/0x3d8) [ 1008.698388][ T30] r10:61c88647 r9:85fc1800 r8:8613daac r7:82804d80 r6:dddcfb40 r5:dddcfb60 [ 1008.698409][ T30] r4:8613da80 [ 1008.698461][ T30] [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280) [ 1008.698758][ T30] r10:00000000 r9:8613da80 r8:802762fc r7:ea659e60 r6:8613d480 r5:85fc1800 [ 1008.698835][ T30] r4:00000001 [ 1008.698869][ T30] [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20) [ 1008.698927][ T30] Exception stack(0xea695fb0 to 0xea695ff8) [ 1008.698964][ T30] 5fa0: 00000000 00000000 00000000 00000000 [ 1008.698995][ T30] 5fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 [ 1008.699020][ T30] 5fe0: 00000000 00000000 00000000 00000000 00000013 00000000 [ 1008.699061][ T30] r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:8027f5d0 [ 1008.699114][ T30] r4:861436c0 [ 1008.699982][ T30] INFO: task kworker/0:93:6020 is blocked on a mutex likely owned by task kworker/0:89:6010. [ 1008.700039][ T30] task:kworker/0:89 state:R running task stack:0 pid:6010 tgid:6010 ppid:2 task_flags:0x4208060 flags:0x00000000 [ 1008.700177][ T30] Workqueue: events bpf_prog_free_deferred [ 1008.700421][ T30] Call trace: [ 1008.700465][ T30] [<81ab1a1c>] (__schedule) from [<81ab30fc>] (preempt_schedule_irq+0x40/0xa8) [ 1008.700718][ T30] r10:8280c9f8 r9:86195400 r8:80200c04 r7:ea655d54 r6:ffffffff r5:86195400 [ 1008.700810][ T30] r4:00000000 [ 1008.700841][ T30] [<81ab30bc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) [ 1008.700927][ T30] Exception stack(0xea655d20 to 0xea655d68) [ 1008.701003][ T30] 5d20: 93b6d000 ebe11000 00000001 80239018 7f06f000 00000001 82ace204 82acd5e0 [ 1008.701065][ T30] 5d40: 7f06f000 ebe11000 8280c9f8 ea655d9c ea655da0 ea655d70 8022fe10 80239030 [ 1008.701094][ T30] 5d60: 80000113 ffffffff [ 1008.701147][ T30] r5:80000113 r4:80239030 [ 1008.701170][ T30] [<8022fdac>] (flush_tlb_kernel_range) from [<804f4024>] (__purge_vmap_area_lazy+0x284/0x458) [ 1008.701270][ T30] r4:82ace224 [ 1008.701311][ T30] [<804f3da0>] (__purge_vmap_area_lazy) from [<804f43dc>] (_vm_unmap_aliases+0x1e4/0x240) [ 1008.701563][ T30] r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:ea655dc0 r5:ea655e08 [ 1008.701676][ T30] r4:ea655dc0 [ 1008.701712][ T30] [<804f41f8>] (_vm_unmap_aliases) from [<804f8048>] (vfree+0x16c/0x210) [ 1008.701798][ T30] r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:86144440 [ 1008.701823][ T30] r4:00000000 [ 1008.701840][ T30] [<804f7edc>] (vfree) from [<80563e54>] (execmem_free+0x30/0x50) [ 1008.701926][ T30] r9:83018405 r8:86195400 r7:00000000 r6:83018400 r5:00001000 r4:7f069000 [ 1008.701945][ T30] [<80563e24>] (execmem_free) from [<803cb1cc>] (bpf_jit_free_exec+0x10/0x14) [ 1008.702017][ T30] r5:00001000 r4:dfad1000 [ 1008.702035][ T30] [<803cb1bc>] (bpf_jit_free_exec) from [<803cb5ac>] (bpf_jit_free+0x68/0xe4) [ 1008.702113][ T30] [<803cb544>] (bpf_jit_free) from [<803cc6d4>] (bpf_prog_free_deferred+0x140/0x158) [ 1008.702216][ T30] r5:8610938c r4:8613d680 [ 1008.702236][ T30] [<803cc594>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4) [ 1008.702300][ T30] r7:dddcfb40 r6:83018400 r5:8610938c r4:8613d680 [ 1008.702318][ T30] [<80275c04>] (process_one_work) from [<802764f8>] (worker_thread+0x1fc/0x3d8) [ 1008.702379][ T30] r10:61c88647 r9:86195400 r8:8613d6ac r7:82804d80 r6:dddcfb40 r5:dddcfb60 [ 1008.702398][ T30] r4:8613d680 [ 1008.702415][ T30] [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280) [ 1008.702473][ T30] r10:00000000 r9:8613d680 r8:802762fc r7:ea661e60 r6:8614a180 r5:86195400 [ 1008.702496][ T30] r4:00000001 [ 1008.702546][ T30] [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20) [ 1008.702623][ T30] Exception stack(0xea655fb0 to 0xea655ff8) [ 1008.702659][ T30] 5fa0: 00000000 00000000 00000000 00000000 [ 1008.702725][ T30] 5fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 [ 1008.702758][ T30] 5fe0: 00000000 00000000 00000000 00000000 00000013 00000000 [ 1008.702795][ T30] r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:8027f5d0 [ 1008.702816][ T30] r4:861409c0 [ 1008.705001][ T30] NMI backtrace for cpu 1 [ 1008.705407][ T30] CPU: 1 UID: 0 PID: 30 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT [ 1008.705638][ T30] Hardware name: ARM-Versatile Express [ 1008.705826][ T30] Call trace: [ 1008.705882][ T30] [<80201a74>] (dump_backtrace) from [<80201b70>] (show_stack+0x18/0x1c) [ 1008.705968][ T30] r7:00000000 r6:00000013 r5:60000093 r4:8229579c [ 1008.705986][ T30] [<80201b58>] (show_stack) from [<8021edec>] (dump_stack_lvl+0x70/0x7c) [ 1008.706045][ T30] [<8021ed7c>] (dump_stack_lvl) from [<8021ee10>] (dump_stack+0x18/0x1c) [ 1008.706100][ T30] r5:00000001 r4:00000001 [ 1008.706119][ T30] [<8021edf8>] (dump_stack) from [<81a9b500>] (nmi_cpu_backtrace+0x160/0x17c) [ 1008.706213][ T30] [<81a9b3a0>] (nmi_cpu_backtrace) from [<81a9b64c>] (nmi_trigger_cpumask_backtrace+0x130/0x1d8) [ 1008.706399][ T30] r7:00000001 r6:8280c6d0 r5:8281af1c r4:ffffffff [ 1008.706421][ T30] [<81a9b51c>] (nmi_trigger_cpumask_backtrace) from [<8022f818>] (arch_trigger_cpumask_backtrace+0x18/0x1c) [ 1008.706507][ T30] r9:00007bf6 r8:8280c850 r7:000114cd r6:00007bf6 r5:82ac27e4 r4:00000048 [ 1008.706545][ T30] [<8022f800>] (arch_trigger_cpumask_backtrace) from [<81aa315c>] (sys_info+0x68/0xa8) [ 1008.706598][ T30] [<81aa30f4>] (sys_info) from [<80383788>] (watchdog+0x464/0x8a0) [ 1008.706654][ T30] r5:82ac27e4 r4:8661750c [ 1008.706673][ T30] [<80383324>] (watchdog) from [<8027f6fc>] (kthread+0x12c/0x280) [ 1008.706738][ T30] r10:00000000 r9:00000000 r8:80383324 r7:832a3c00 r6:832a3c00 r5:832e1800 [ 1008.706759][ T30] r4:00000001 [ 1008.706774][ T30] [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20) [ 1008.706818][ T30] Exception stack(0xdf8d9fb0 to 0xdf8d9ff8) [ 1008.706849][ T30] 9fa0: 00000000 00000000 00000000 00000000 [ 1008.706881][ T30] 9fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 [ 1008.706966][ T30] 9fe0: 00000000 00000000 00000000 00000000 00000013 00000000 [ 1008.707028][ T30] r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:8027f5d0 [ 1008.707069][ T30] r4:83368e00 [ 1008.709305][ T30] Sending NMI from CPU 1 to CPUs 0: [ 1008.710110][ C0] NMI backtrace for cpu 0 [ 1008.710388][ C0] CPU: 0 UID: 0 PID: 2818 Comm: pr/ttyAMA-1 Not tainted syzkaller #0 PREEMPT [ 1008.710454][ C0] Hardware name: ARM-Versatile Express [ 1008.710508][ C0] PC is at _raw_spin_unlock_irqrestore+0x28/0x54 [ 1008.710602][ C0] LR is at pl011_console_device_unlock+0x20/0x24 [ 1008.710662][ C0] pc : [<81abc670>] lr : [<80aa3828>] psr: 60000013 [ 1008.710698][ C0] sp : eb1c1eb0 ip : eb1c1ec0 fp : eb1c1ebc [ 1008.710732][ C0] r10: 82959bc4 r9 : 00000000 r8 : 00000000 [ 1008.710771][ C0] r7 : 00000117 r6 : 82959b28 r5 : 00000000 r4 : 00000001 [ 1008.710812][ C0] r3 : 000006b5 r2 : 00000000 r1 : 60000013 r0 : 842d7840 [ 1008.710940][ C0] Flags: nZCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment user [ 1008.711006][ C0] Control: 30c5387d Table: 85dc97c0 DAC: fffffffd [ 1008.711067][ C0] Call trace: [ 1008.711108][ C0] [<81abc648>] (_raw_spin_unlock_irqrestore) from [<80aa3828>] (pl011_console_device_unlock+0x20/0x24) [ 1008.711177][ C0] [<80aa3808>] (pl011_console_device_unlock) from [<802e5720>] (nbcon_emit_one+0x88/0x100) [ 1008.711241][ C0] [<802e5698>] (nbcon_emit_one) from [<802e59a0>] (nbcon_kthread_func+0x208/0x2e4) [ 1008.711318][ C0] r6:82abf0fc r5:82959b28 r4:84f58000 [ 1008.711334][ C0] [<802e5798>] (nbcon_kthread_func) from [<8027f6fc>] (kthread+0x12c/0x280) [ 1008.711409][ C0] r10:00000000 r9:82959b28 r8:802e5798 r7:84657e80 r6:84657e80 r5:84f58000 [ 1008.711430][ C0] r4:00000001 [ 1008.711446][ C0] [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20) [ 1008.711494][ C0] Exception stack(0xeb1c1fb0 to 0xeb1c1ff8) [ 1008.711529][ C0] 1fa0: 00000000 00000000 00000000 00000000 [ 1008.711565][ C0] 1fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 [ 1008.711595][ C0] 1fe0: 00000000 00000000 00000000 00000000 00000013 00000000 [ 1008.711634][ C0] r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:8027f5d0 [ 1008.711654][ C0] r4:8463b980 1970/01/01 00:16:52 executed programs: 1151 1970/01/01 00:16:58 executed programs: 1163 1970/01/01 00:17:03 executed programs: 1175 1970/01/01 00:17:08 executed programs: 1184 [ 1029.062635][ T30] INFO: task kworker/1:3:2886 blocked for more than 430 seconds. [ 1029.066453][ T30] Not tainted syzkaller #0 [ 1029.066790][ T30] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 1029.066937][ T30] task:kworker/1:3 state:D stack:0 pid:2886 tgid:2886 ppid:2 task_flags:0x4208060 flags:0x00000000 [ 1029.067282][ T30] Workqueue: events bpf_prog_free_deferred [ 1029.067722][ T30] Call trace: [ 1029.067978][ T30] [<81ab1a1c>] (__schedule) from [<81ab2cc8>] (schedule+0x2c/0x130) [ 1029.070606][ T30] r10:eb275d84 r9:829174a8 r8:60000113 r7:829174a8 r6:eb275d8c r5:838e9800 [ 1029.070800][ T30] r4:838e9800 [ 1029.071069][ T30] [<81ab2c9c>] (schedule) from [<81ab2e50>] (schedule_preempt_disabled+0x18/0x24) [ 1029.071317][ T30] r5:838e9800 r4:829174a4 [ 1029.071432][ T30] [<81ab2e38>] (schedule_preempt_disabled) from [<81ab64d4>] (__mutex_lock.constprop.0+0x658/0xf8c) [ 1029.071610][ T30] [<81ab5e7c>] (__mutex_lock.constprop.0) from [<81ab6edc>] (__mutex_lock_slowpath+0x14/0x18) [ 1029.071792][ T30] r10:8280c9a4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:eb275e08 [ 1029.071911][ T30] r4:00000000 [ 1029.072019][ T30] [<81ab6ec8>] (__mutex_lock_slowpath) from [<81ab6f1c>] (mutex_lock+0x3c/0x40) [ 1029.072172][ T30] [<81ab6ee0>] (mutex_lock) from [<804f4260>] (_vm_unmap_aliases+0x68/0x240) [ 1029.072343][ T30] [<804f41f8>] (_vm_unmap_aliases) from [<804f8048>] (vfree+0x16c/0x210) [ 1029.072530][ T30] r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:86143e40 [ 1029.072650][ T30] r4:00000000 [ 1029.072759][ T30] [<804f7edc>] (vfree) from [<80563e54>] (execmem_free+0x30/0x50) [ 1029.072950][ T30] r9:83018605 r8:838e9800 r7:00000000 r6:83018600 r5:00001000 r4:7f067000 [ 1029.073060][ T30] [<80563e24>] (execmem_free) from [<803cb1cc>] (bpf_jit_free_exec+0x10/0x14) [ 1029.073237][ T30] r5:00001000 r4:dfa21000 [ 1029.073355][ T30] [<803cb1bc>] (bpf_jit_free_exec) from [<803cb5ac>] (bpf_jit_free+0x68/0xe4) [ 1029.073522][ T30] [<803cb544>] (bpf_jit_free) from [<803cc6d4>] (bpf_prog_free_deferred+0x140/0x158) [ 1029.073698][ T30] r5:8611378c r4:85839180 [ 1029.073807][ T30] [<803cc594>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4) [ 1029.073983][ T30] r7:ddde3b40 r6:83018600 r5:8611378c r4:85839180 [ 1029.074091][ T30] [<80275c04>] (process_one_work) from [<802764f8>] (worker_thread+0x1fc/0x3d8) [ 1029.074331][ T30] r10:61c88647 r9:838e9800 r8:858391ac r7:82804d80 r6:ddde3b40 r5:ddde3b60 [ 1029.074462][ T30] r4:85839180 [ 1029.074579][ T30] [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280) [ 1029.074684][ T30] r10:00000000 r9:85839180 r8:802762fc r7:df911e60 r6:85839400 r5:838e9800 [ 1029.074712][ T30] r4:00000001 [ 1029.074728][ T30] [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20) [ 1029.074957][ T30] Exception stack(0xeb275fb0 to 0xeb275ff8) [ 1029.075063][ T30] 5fa0: 00000000 00000000 00000000 00000000 [ 1029.075187][ T30] 5fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 [ 1029.075230][ T30] 5fe0: 00000000 00000000 00000000 00000000 00000013 00000000 [ 1029.075280][ T30] r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:8027f5d0 [ 1029.075363][ T30] r4:85838900 [ 1029.087069][ T30] INFO: task kworker/1:3:2886 is blocked on a mutex likely owned by task kworker/0:91:6015. [ 1029.087285][ T30] task:kworker/0:91 state:R running task stack:0 pid:6015 tgid:6015 ppid:2 task_flags:0x4208060 flags:0x00000000 [ 1029.087395][ T30] Workqueue: events bpf_prog_free_deferred [ 1029.087535][ T30] Call trace: [ 1029.087573][ T30] [<81ab1a1c>] (__schedule) from [<81ab30fc>] (preempt_schedule_irq+0x40/0xa8) [ 1029.087732][ T30] r10:8280c9f8 r9:85fc2400 r8:80200c04 r7:ea659d54 r6:ffffffff r5:85fc2400 [ 1029.087758][ T30] r4:00000000 [ 1029.087776][ T30] [<81ab30bc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) [ 1029.087836][ T30] Exception stack(0xea659d20 to 0xea659d68) [ 1029.087876][ T30] 9d20: e5d22000 ebeef000 00000001 80239018 7f065000 00000001 82ace204 82acd5e0 [ 1029.087913][ T30] 9d40: 7f065000 ebeef000 8280c9f8 ea659d9c ea659da0 ea659d70 8022fe10 80239030 [ 1029.087935][ T30] 9d60: 80000013 ffffffff [ 1029.087961][ T30] r5:80000013 r4:80239030 [ 1029.087977][ T30] [<8022fdac>] (flush_tlb_kernel_range) from [<804f4024>] (__purge_vmap_area_lazy+0x284/0x458) [ 1029.088044][ T30] r4:82ace224 [ 1029.088117][ T30] [<804f3da0>] (__purge_vmap_area_lazy) from [<804f43dc>] (_vm_unmap_aliases+0x1e4/0x240) [ 1029.088228][ T30] r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:ea659dc0 r5:ea659e08 [ 1029.088405][ T30] r4:ea659dc0 [ 1029.088431][ T30] [<804f41f8>] (_vm_unmap_aliases) from [<804f8048>] (vfree+0x16c/0x210) [ 1029.088508][ T30] r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:86081040 [ 1029.088531][ T30] r4:00000000 [ 1029.088550][ T30] [<804f7edc>] (vfree) from [<80563e54>] (execmem_free+0x30/0x50) [ 1029.088633][ T30] r9:83018405 r8:85fc2400 r7:00000000 r6:83018400 r5:00001000 r4:7f073000 [ 1029.088651][ T30] [<80563e24>] (execmem_free) from [<803cb1cc>] (bpf_jit_free_exec+0x10/0x14) [ 1029.088721][ T30] r5:00001000 r4:e836d000 [ 1029.088740][ T30] [<803cb1bc>] (bpf_jit_free_exec) from [<803cb5ac>] (bpf_jit_free+0x68/0xe4) [ 1029.088804][ T30] [<803cb544>] (bpf_jit_free) from [<803cc6d4>] (bpf_prog_free_deferred+0x140/0x158) [ 1029.088869][ T30] r5:860fb78c r4:8613db00 [ 1029.088888][ T30] [<803cc594>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4) [ 1029.088959][ T30] r7:dddcfb40 r6:83018400 r5:860fb78c r4:8613db00 [ 1029.088978][ T30] [<80275c04>] (process_one_work) from [<802764f8>] (worker_thread+0x1fc/0x3d8) [ 1029.089118][ T30] r10:61c88647 r9:85fc2400 r8:8613db2c r7:82804d80 r6:dddcfb40 r5:dddcfb60 [ 1029.089193][ T30] r4:8613db00 [ 1029.089244][ T30] [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280) [ 1029.089341][ T30] r10:00000000 r9:8613db00 r8:802762fc r7:ea669e60 r6:8613db80 r5:85fc2400 [ 1029.089386][ T30] r4:00000001 [ 1029.089433][ T30] [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20) [ 1029.089549][ T30] Exception stack(0xea659fb0 to 0xea659ff8) [ 1029.089589][ T30] 9fa0: 00000000 00000000 00000000 00000000 [ 1029.089653][ T30] 9fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 [ 1029.089690][ T30] 9fe0: 00000000 00000000 00000000 00000000 00000013 00000000 [ 1029.089733][ T30] r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:8027f5d0 [ 1029.089856][ T30] r4:86146b00 [ 1029.090038][ T30] INFO: task kworker/1:10:5160 blocked for more than 430 seconds. [ 1029.090089][ T30] Not tainted syzkaller #0 [ 1029.090115][ T30] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 1029.090531][ T30] task:kworker/1:10 state:D stack:0 pid:5160 tgid:5160 ppid:2 task_flags:0x4208060 flags:0x00000000 [ 1029.090866][ T30] Workqueue: events bpf_prog_free_deferred [ 1029.091015][ T30] Call trace: [ 1029.091055][ T30] [<81ab1a1c>] (__schedule) from [<81ab2cc8>] (schedule+0x2c/0x130) [ 1029.091159][ T30] r10:e00bdd84 r9:829174a8 r8:60000113 r7:829174a8 r6:e00bdd8c r5:85b92400 [ 1029.091185][ T30] r4:85b92400 [ 1029.091203][ T30] [<81ab2c9c>] (schedule) from [<81ab2e50>] (schedule_preempt_disabled+0x18/0x24) [ 1029.091454][ T30] r5:85b92400 r4:829174a4 [ 1029.091487][ T30] [<81ab2e38>] (schedule_preempt_disabled) from [<81ab64d4>] (__mutex_lock.constprop.0+0x658/0xf8c) [ 1029.091727][ T30] [<81ab5e7c>] (__mutex_lock.constprop.0) from [<81ab6edc>] (__mutex_lock_slowpath+0x14/0x18) [ 1029.091811][ T30] r10:8280c9a4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:e00bde08 [ 1029.091836][ T30] r4:00000000 [ 1029.091852][ T30] [<81ab6ec8>] (__mutex_lock_slowpath) from [<81ab6f1c>] (mutex_lock+0x3c/0x40) [ 1029.091902][ T30] [<81ab6ee0>] (mutex_lock) from [<804f4260>] (_vm_unmap_aliases+0x68/0x240) [ 1029.091957][ T30] [<804f41f8>] (_vm_unmap_aliases) from [<804f8048>] (vfree+0x16c/0x210) [ 1029.092030][ T30] r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:8607e240 [ 1029.092053][ T30] r4:00000000 [ 1029.092069][ T30] [<804f7edc>] (vfree) from [<80563e54>] (execmem_free+0x30/0x50) [ 1029.092158][ T30] r9:83018605 r8:85b92400 r7:00000000 r6:83018600 r5:00001000 r4:7f06b000 [ 1029.092179][ T30] [<80563e24>] (execmem_free) from [<803cb1cc>] (bpf_jit_free_exec+0x10/0x14) [ 1029.092249][ T30] r5:00001000 r4:dfbdf000 [ 1029.092275][ T30] [<803cb1bc>] (bpf_jit_free_exec) from [<803cb5ac>] (bpf_jit_free+0x68/0xe4) [ 1029.092338][ T30] [<803cb544>] (bpf_jit_free) from [<803cc6d4>] (bpf_prog_free_deferred+0x140/0x158) [ 1029.092400][ T30] r5:8611ff8c r4:85f05800 [ 1029.092417][ T30] [<803cc594>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4) [ 1029.092487][ T30] r7:ddde3b40 r6:83018600 r5:8611ff8c r4:85f05800 [ 1029.092506][ T30] [<80275c04>] (process_one_work) from [<802764f8>] (worker_thread+0x1fc/0x3d8) [ 1029.092623][ T30] r10:61c88647 r9:85b92400 r8:85f0582c r7:82804d80 r6:ddde3b40 r5:ddde3b60 [ 1029.092650][ T30] r4:85f05800 [ 1029.092667][ T30] [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280) [ 1029.092739][ T30] r10:00000000 r9:85f05800 r8:802762fc r7:e0091e60 r6:85f05780 r5:85b92400 [ 1029.092759][ T30] r4:00000001 [ 1029.092776][ T30] [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20) [ 1029.092825][ T30] Exception stack(0xe00bdfb0 to 0xe00bdff8) [ 1029.092857][ T30] dfa0: 00000000 00000000 00000000 00000000 [ 1029.092891][ T30] dfc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 [ 1029.092921][ T30] dfe0: 00000000 00000000 00000000 00000000 00000013 00000000 [ 1029.092960][ T30] r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:8027f5d0 [ 1029.092983][ T30] r4:85f01f40 [ 1029.093728][ T30] INFO: task kworker/1:10:5160 is blocked on a mutex likely owned by task kworker/0:91:6015. [ 1029.093775][ T30] task:kworker/0:91 state:R running task stack:0 pid:6015 tgid:6015 ppid:2 task_flags:0x4208060 flags:0x00000000 [ 1029.093854][ T30] Workqueue: events bpf_prog_free_deferred [ 1029.093910][ T30] Call trace: [ 1029.094003][ T30] [<81ab1a1c>] (__schedule) from [<81ab30fc>] (preempt_schedule_irq+0x40/0xa8) [ 1029.094209][ T30] r10:8280c9f8 r9:85fc2400 r8:80200c04 r7:ea659d54 r6:ffffffff r5:85fc2400 [ 1029.094234][ T30] r4:00000000 [ 1029.094250][ T30] [<81ab30bc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) [ 1029.094372][ T30] Exception stack(0xea659d20 to 0xea659d68) [ 1029.094469][ T30] 9d20: e5d22000 ebeef000 00000001 80239018 7f065000 00000001 82ace204 82acd5e0 [ 1029.094511][ T30] 9d40: 7f065000 ebeef000 8280c9f8 ea659d9c ea659da0 ea659d70 8022fe10 80239030 [ 1029.094579][ T30] 9d60: 80000013 ffffffff [ 1029.094610][ T30] r5:80000013 r4:80239030 [ 1029.094713][ T30] [<8022fdac>] (flush_tlb_kernel_range) from [<804f4024>] (__purge_vmap_area_lazy+0x284/0x458) [ 1029.094799][ T30] r4:82ace224 [ 1029.094898][ T30] [<804f3da0>] (__purge_vmap_area_lazy) from [<804f43dc>] (_vm_unmap_aliases+0x1e4/0x240) [ 1029.094975][ T30] r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:ea659dc0 r5:ea659e08 [ 1029.095069][ T30] r4:ea659dc0 [ 1029.095184][ T30] [<804f41f8>] (_vm_unmap_aliases) from [<804f8048>] (vfree+0x16c/0x210) [ 1029.095383][ T30] r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:86081040 [ 1029.095404][ T30] r4:00000000 [ 1029.095421][ T30] [<804f7edc>] (vfree) from [<80563e54>] (execmem_free+0x30/0x50) [ 1029.108577][ T30] r9:83018405 r8:85fc2400 r7:00000000 r6:83018400 r5:00001000 r4:7f073000 [ 1029.108648][ T30] [<80563e24>] (execmem_free) from [<803cb1cc>] (bpf_jit_free_exec+0x10/0x14) [ 1029.108757][ T30] r5:00001000 r4:e836d000 [ 1029.108773][ T30] [<803cb1bc>] (bpf_jit_free_exec) from [<803cb5ac>] (bpf_jit_free+0x68/0xe4) [ 1029.108927][ T30] [<803cb544>] (bpf_jit_free) from [<803cc6d4>] (bpf_prog_free_deferred+0x140/0x158) [ 1029.108996][ T30] r5:860fb78c r4:8613db00 [ 1029.109011][ T30] [<803cc594>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4) [ 1029.109077][ T30] r7:dddcfb40 r6:83018400 r5:860fb78c r4:8613db00 [ 1029.109093][ T30] [<80275c04>] (process_one_work) from [<802764f8>] (worker_thread+0x1fc/0x3d8) [ 1029.109162][ T30] r10:61c88647 r9:85fc2400 r8:8613db2c r7:82804d80 r6:dddcfb40 r5:dddcfb60 [ 1029.109181][ T30] r4:8613db00 [ 1029.109195][ T30] [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280) [ 1029.109277][ T30] r10:00000000 r9:8613db00 r8:802762fc r7:ea669e60 r6:8613db80 r5:85fc2400 [ 1029.109296][ T30] r4:00000001 [ 1029.109311][ T30] [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20) [ 1029.109355][ T30] Exception stack(0xea659fb0 to 0xea659ff8) [ 1029.109441][ T30] 9fa0: 00000000 00000000 00000000 00000000 [ 1029.109476][ T30] 9fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 [ 1029.109505][ T30] 9fe0: 00000000 00000000 00000000 00000000 00000013 00000000 [ 1029.109544][ T30] r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:8027f5d0 [ 1029.109563][ T30] r4:86146b00 [ 1029.109644][ T30] INFO: task kworker/1:13:5187 blocked for more than 430 seconds. [ 1029.109687][ T30] Not tainted syzkaller #0 [ 1029.109724][ T30] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 1029.109741][ T30] task:kworker/1:13 state:D stack:0 pid:5187 tgid:5187 ppid:2 task_flags:0x4208060 flags:0x00000000 [ 1029.109819][ T30] Workqueue: events bpf_prog_free_deferred [ 1029.109863][ T30] Call trace: [ 1029.109891][ T30] [<81ab1a1c>] (__schedule) from [<81ab2cc8>] (schedule+0x2c/0x130) [ 1029.109973][ T30] r10:e0099d84 r9:829174a8 r8:60000013 r7:829174a8 r6:e0099d8c r5:83e16c00 [ 1029.109993][ T30] r4:83e16c00 [ 1029.110008][ T30] [<81ab2c9c>] (schedule) from [<81ab2e50>] (schedule_preempt_disabled+0x18/0x24) [ 1029.110070][ T30] r5:83e16c00 r4:829174a4 [ 1029.110085][ T30] [<81ab2e38>] (schedule_preempt_disabled) from [<81ab64d4>] (__mutex_lock.constprop.0+0x658/0xf8c) [ 1029.110161][ T30] [<81ab5e7c>] (__mutex_lock.constprop.0) from [<81ab6edc>] (__mutex_lock_slowpath+0x14/0x18) [ 1029.110225][ T30] r10:8280c9a4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:e0099e08 [ 1029.110249][ T30] r4:00000000 [ 1029.110263][ T30] [<81ab6ec8>] (__mutex_lock_slowpath) from [<81ab6f1c>] (mutex_lock+0x3c/0x40) [ 1029.110306][ T30] [<81ab6ee0>] (mutex_lock) from [<804f4260>] (_vm_unmap_aliases+0x68/0x240) [ 1029.110357][ T30] [<804f41f8>] (_vm_unmap_aliases) from [<804f8048>] (vfree+0x16c/0x210) [ 1029.110422][ T30] r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:861400c0 [ 1029.110439][ T30] r4:00000000 [ 1029.110452][ T30] [<804f7edc>] (vfree) from [<80563e54>] (execmem_free+0x30/0x50) [ 1029.110512][ T30] r9:83018605 r8:83e16c00 r7:00000000 r6:83018600 r5:00001000 r4:7f065000 [ 1029.110526][ T30] [<80563e24>] (execmem_free) from [<803cb1cc>] (bpf_jit_free_exec+0x10/0x14) [ 1029.110596][ T30] r5:00001000 r4:dfbf1000 [ 1029.110612][ T30] [<803cb1bc>] (bpf_jit_free_exec) from [<803cb5ac>] (bpf_jit_free+0x68/0xe4) [ 1029.110661][ T30] [<803cb544>] (bpf_jit_free) from [<803cc6d4>] (bpf_prog_free_deferred+0x140/0x158) [ 1029.110710][ T30] r5:85d0578c r4:85f05e80 [ 1029.110723][ T30] [<803cc594>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4) [ 1029.110779][ T30] r7:ddde3b40 r6:83018600 r5:85d0578c r4:85f05e80 [ 1029.110794][ T30] [<80275c04>] (process_one_work) from [<802764f8>] (worker_thread+0x1fc/0x3d8) [ 1029.110853][ T30] r10:61c88647 r9:83e16c00 r8:85f05eac r7:82804d80 r6:ddde3b40 r5:ddde3b60 [ 1029.110885][ T30] r4:85f05e80 [ 1029.110899][ T30] [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280) [ 1029.110957][ T30] r10:00000000 r9:85f05e80 r8:802762fc r7:dfd01e60 r6:85f05f80 r5:83e16c00 [ 1029.110973][ T30] r4:00000001 [ 1029.110986][ T30] [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20) [ 1029.111022][ T30] Exception stack(0xe0099fb0 to 0xe0099ff8) [ 1029.111143][ T30] 9fa0: 00000000 00000000 00000000 00000000 [ 1029.111179][ T30] 9fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 [ 1029.111205][ T30] 9fe0: 00000000 00000000 00000000 00000000 00000013 00000000 [ 1029.111295][ T30] r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:8027f5d0 [ 1029.111332][ T30] r4:85f0d900 [ 1029.112186][ T30] INFO: task kworker/1:13:5187 is blocked on a mutex likely owned by task kworker/0:91:6015. [ 1029.112256][ T30] task:kworker/0:91 state:R running task stack:0 pid:6015 tgid:6015 ppid:2 task_flags:0x4208060 flags:0x00000000 [ 1029.112334][ T30] Workqueue: events bpf_prog_free_deferred [ 1029.112389][ T30] Call trace: [ 1029.112444][ T30] [<81ab1a1c>] (__schedule) from [<81ab30fc>] (preempt_schedule_irq+0x40/0xa8) [ 1029.112540][ T30] r10:8280c9f8 r9:85fc2400 r8:80200c04 r7:ea659d54 r6:ffffffff r5:85fc2400 [ 1029.112563][ T30] r4:00000000 [ 1029.112579][ T30] [<81ab30bc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) [ 1029.112636][ T30] Exception stack(0xea659d20 to 0xea659d68) [ 1029.112676][ T30] 9d20: e5d22000 ebeef000 00000001 80239018 7f065000 00000001 82ace204 82acd5e0 [ 1029.112711][ T30] 9d40: 7f065000 ebeef000 8280c9f8 ea659d9c ea659da0 ea659d70 8022fe10 80239030 [ 1029.112792][ T30] 9d60: 80000013 ffffffff [ 1029.112828][ T30] r5:80000013 r4:80239030 [ 1029.112846][ T30] [<8022fdac>] (flush_tlb_kernel_range) from [<804f4024>] (__purge_vmap_area_lazy+0x284/0x458) [ 1029.112916][ T30] r4:82ace224 [ 1029.112932][ T30] [<804f3da0>] (__purge_vmap_area_lazy) from [<804f43dc>] (_vm_unmap_aliases+0x1e4/0x240) [ 1029.113004][ T30] r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:ea659dc0 r5:ea659e08 [ 1029.113026][ T30] r4:ea659dc0 [ 1029.113043][ T30] [<804f41f8>] (_vm_unmap_aliases) from [<804f8048>] (vfree+0x16c/0x210) [ 1029.113116][ T30] r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:86081040 [ 1029.113138][ T30] r4:00000000 [ 1029.113154][ T30] [<804f7edc>] (vfree) from [<80563e54>] (execmem_free+0x30/0x50) [ 1029.113227][ T30] r9:83018405 r8:85fc2400 r7:00000000 r6:83018400 r5:00001000 r4:7f073000 [ 1029.113257][ T30] [<80563e24>] (execmem_free) from [<803cb1cc>] (bpf_jit_free_exec+0x10/0x14) [ 1029.113441][ T30] r5:00001000 r4:e836d000 [ 1029.113466][ T30] [<803cb1bc>] (bpf_jit_free_exec) from [<803cb5ac>] (bpf_jit_free+0x68/0xe4) [ 1029.113538][ T30] [<803cb544>] (bpf_jit_free) from [<803cc6d4>] (bpf_prog_free_deferred+0x140/0x158) [ 1029.113698][ T30] r5:860fb78c r4:8613db00 [ 1029.113814][ T30] [<803cc594>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4) [ 1029.113905][ T30] r7:dddcfb40 r6:83018400 r5:860fb78c r4:8613db00 [ 1029.113922][ T30] [<80275c04>] (process_one_work) from [<802764f8>] (worker_thread+0x1fc/0x3d8) [ 1029.113991][ T30] r10:61c88647 r9:85fc2400 r8:8613db2c r7:82804d80 r6:dddcfb40 r5:dddcfb60 [ 1029.114013][ T30] r4:8613db00 [ 1029.114093][ T30] [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280) [ 1029.114196][ T30] r10:00000000 r9:8613db00 r8:802762fc r7:ea669e60 r6:8613db80 r5:85fc2400 [ 1029.114220][ T30] r4:00000001 [ 1029.114234][ T30] [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20) [ 1029.114293][ T30] Exception stack(0xea659fb0 to 0xea659ff8) [ 1029.114324][ T30] 9fa0: 00000000 00000000 00000000 00000000 [ 1029.114401][ T30] 9fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 [ 1029.114479][ T30] 9fe0: 00000000 00000000 00000000 00000000 00000013 00000000 [ 1029.114523][ T30] r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:8027f5d0 [ 1029.114546][ T30] r4:86146b00 [ 1029.114614][ T30] INFO: task kworker/1:14:5206 blocked for more than 430 seconds. [ 1029.114659][ T30] Not tainted syzkaller #0 [ 1029.114682][ T30] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 1029.114698][ T30] task:kworker/1:14 state:D stack:0 pid:5206 tgid:5206 ppid:2 task_flags:0x4208060 flags:0x00000000 [ 1029.114757][ T30] Workqueue: events bpf_prog_free_deferred [ 1029.114804][ T30] Call trace: [ 1029.114838][ T30] [<81ab1a1c>] (__schedule) from [<81ab2cc8>] (schedule+0x2c/0x130) [ 1029.114921][ T30] r10:e01ddd84 r9:829174a8 r8:60000113 r7:829174a8 r6:e01ddd8c r5:85b94800 [ 1029.114978][ T30] r4:85b94800 [ 1029.115002][ T30] [<81ab2c9c>] (schedule) from [<81ab2e50>] (schedule_preempt_disabled+0x18/0x24) [ 1029.115089][ T30] r5:85b94800 r4:829174a4 [ 1029.115210][ T30] [<81ab2e38>] (schedule_preempt_disabled) from [<81ab64d4>] (__mutex_lock.constprop.0+0x658/0xf8c) [ 1029.115282][ T30] [<81ab5e7c>] (__mutex_lock.constprop.0) from [<81ab6edc>] (__mutex_lock_slowpath+0x14/0x18) [ 1029.115357][ T30] r10:8280c9a4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:e01dde08 [ 1029.115380][ T30] r4:00000000 [ 1029.115396][ T30] [<81ab6ec8>] (__mutex_lock_slowpath) from [<81ab6f1c>] (mutex_lock+0x3c/0x40) [ 1029.116763][ T30] [<81ab6ee0>] (mutex_lock) from [<804f4260>] (_vm_unmap_aliases+0x68/0x240) [ 1029.118123][ T30] [<804f41f8>] (_vm_unmap_aliases) from [<804f8048>] (vfree+0x16c/0x210) [ 1029.118308][ T30] r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85e9ad80 [ 1029.118335][ T30] r4:00000000 [ 1029.118352][ T30] [<804f7edc>] (vfree) from [<80563e54>] (execmem_free+0x30/0x50) [ 1029.118431][ T30] r9:83018605 r8:85b94800 r7:00000000 r6:83018600 r5:00001000 r4:7f06d000 [ 1029.118452][ T30] [<80563e24>] (execmem_free) from [<803cb1cc>] (bpf_jit_free_exec+0x10/0x14) [ 1029.118520][ T30] r5:00001000 r4:dfcd7000 [ 1029.118538][ T30] [<803cb1bc>] (bpf_jit_free_exec) from [<803cb5ac>] (bpf_jit_free+0x68/0xe4) [ 1029.118596][ T30] [<803cb544>] (bpf_jit_free) from [<803cc6d4>] (bpf_prog_free_deferred+0x140/0x158) [ 1029.118656][ T30] r5:86108f8c r4:85f05b80 [ 1029.118672][ T30] [<803cc594>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4) [ 1029.118737][ T30] r7:ddde3b40 r6:83018600 r5:86108f8c r4:85f05b80 [ 1029.118783][ T30] [<80275c04>] (process_one_work) from [<802764f8>] (worker_thread+0x1fc/0x3d8) [ 1029.118860][ T30] r10:61c88647 r9:85b94800 r8:85f05bac r7:82804d80 r6:ddde3b40 r5:ddde3b60 [ 1029.118882][ T30] r4:85f05b80 [ 1029.118900][ T30] [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280) [ 1029.118971][ T30] r10:00000000 r9:85f05b80 r8:802762fc r7:e00bde60 r6:85f05180 r5:85b94800 [ 1029.118993][ T30] r4:00000001 [ 1029.119010][ T30] [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20) [ 1029.119057][ T30] Exception stack(0xe01ddfb0 to 0xe01ddff8) [ 1029.119093][ T30] dfa0: 00000000 00000000 00000000 00000000 [ 1029.119129][ T30] dfc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 [ 1029.119160][ T30] dfe0: 00000000 00000000 00000000 00000000 00000013 00000000 [ 1029.119199][ T30] r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:8027f5d0 [ 1029.119221][ T30] r4:85f0dfc0 [ 1029.120004][ T30] INFO: task kworker/1:14:5206 is blocked on a mutex likely owned by task kworker/0:91:6015. [ 1029.120052][ T30] task:kworker/0:91 state:R running task stack:0 pid:6015 tgid:6015 ppid:2 task_flags:0x4208060 flags:0x00000000 [ 1029.120151][ T30] Workqueue: events bpf_prog_free_deferred [ 1029.120207][ T30] Call trace: [ 1029.120236][ T30] [<81ab1a1c>] (__schedule) from [<81ab30fc>] (preempt_schedule_irq+0x40/0xa8) [ 1029.120333][ T30] r10:8280c9f8 r9:85fc2400 r8:80200c04 r7:ea659d54 r6:ffffffff r5:85fc2400 [ 1029.120357][ T30] r4:00000000 [ 1029.120373][ T30] [<81ab30bc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) [ 1029.120428][ T30] Exception stack(0xea659d20 to 0xea659d68) [ 1029.120468][ T30] 9d20: e5d22000 ebeef000 00000001 80239018 7f065000 00000001 82ace204 82acd5e0 [ 1029.120504][ T30] 9d40: 7f065000 ebeef000 8280c9f8 ea659d9c ea659da0 ea659d70 8022fe10 80239030 [ 1029.120530][ T30] 9d60: 80000013 ffffffff [ 1029.120556][ T30] r5:80000013 r4:80239030 [ 1029.120572][ T30] [<8022fdac>] (flush_tlb_kernel_range) from [<804f4024>] (__purge_vmap_area_lazy+0x284/0x458) [ 1029.120639][ T30] r4:82ace224 [ 1029.120657][ T30] [<804f3da0>] (__purge_vmap_area_lazy) from [<804f43dc>] (_vm_unmap_aliases+0x1e4/0x240) [ 1029.120726][ T30] r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:ea659dc0 r5:ea659e08 [ 1029.120747][ T30] r4:ea659dc0 [ 1029.120792][ T30] [<804f41f8>] (_vm_unmap_aliases) from [<804f8048>] (vfree+0x16c/0x210) [ 1029.120945][ T30] r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:86081040 [ 1029.120966][ T30] r4:00000000 [ 1029.120983][ T30] [<804f7edc>] (vfree) from [<80563e54>] (execmem_free+0x30/0x50) [ 1029.121053][ T30] r9:83018405 r8:85fc2400 r7:00000000 r6:83018400 r5:00001000 r4:7f073000 [ 1029.121151][ T30] [<80563e24>] (execmem_free) from [<803cb1cc>] (bpf_jit_free_exec+0x10/0x14) [ 1029.121232][ T30] r5:00001000 r4:e836d000 [ 1029.121262][ T30] [<803cb1bc>] (bpf_jit_free_exec) from [<803cb5ac>] (bpf_jit_free+0x68/0xe4) [ 1029.121376][ T30] [<803cb544>] (bpf_jit_free) from [<803cc6d4>] (bpf_prog_free_deferred+0x140/0x158) [ 1029.121437][ T30] r5:860fb78c r4:8613db00 [ 1029.121453][ T30] [<803cc594>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4) [ 1029.121522][ T30] r7:dddcfb40 r6:83018400 r5:860fb78c r4:8613db00 [ 1029.121540][ T30] [<80275c04>] (process_one_work) from [<802764f8>] (worker_thread+0x1fc/0x3d8) [ 1029.121609][ T30] r10:61c88647 r9:85fc2400 r8:8613db2c r7:82804d80 r6:dddcfb40 r5:dddcfb60 [ 1029.121633][ T30] r4:8613db00 [ 1029.121649][ T30] [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280) [ 1029.121716][ T30] r10:00000000 r9:8613db00 r8:802762fc r7:ea669e60 r6:8613db80 r5:85fc2400 [ 1029.121761][ T30] r4:00000001 [ 1029.121800][ T30] [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20) [ 1029.121855][ T30] Exception stack(0xea659fb0 to 0xea659ff8) [ 1029.121886][ T30] 9fa0: 00000000 00000000 00000000 00000000 [ 1029.121922][ T30] 9fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 [ 1029.121952][ T30] 9fe0: 00000000 00000000 00000000 00000000 00000013 00000000 [ 1029.121993][ T30] r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:8027f5d0 [ 1029.122014][ T30] r4:86146b00 [ 1029.122539][ T30] INFO: task kworker/0:90:6013 blocked for more than 430 seconds. [ 1029.122630][ T30] Not tainted syzkaller #0 [ 1029.122660][ T30] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 1029.122678][ T30] task:kworker/0:90 state:D stack:0 pid:6013 tgid:6013 ppid:2 task_flags:0x4208060 flags:0x00000000 [ 1029.122739][ T30] Workqueue: events bpf_prog_free_deferred [ 1029.122793][ T30] Call trace: [ 1029.122822][ T30] [<81ab1a1c>] (__schedule) from [<81ab2cc8>] (schedule+0x2c/0x130) [ 1029.122902][ T30] r10:ea669d84 r9:829174a8 r8:60000013 r7:829174a8 r6:ea669d8c r5:85fc6c00 [ 1029.122925][ T30] r4:85fc6c00 [ 1029.122942][ T30] [<81ab2c9c>] (schedule) from [<81ab2e50>] (schedule_preempt_disabled+0x18/0x24) [ 1029.123002][ T30] r5:85fc6c00 r4:829174a4 [ 1029.123017][ T30] [<81ab2e38>] (schedule_preempt_disabled) from [<81ab64d4>] (__mutex_lock.constprop.0+0x658/0xf8c) [ 1029.123073][ T30] [<81ab5e7c>] (__mutex_lock.constprop.0) from [<81ab6edc>] (__mutex_lock_slowpath+0x14/0x18) [ 1029.123136][ T30] r10:8280c9a4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:ea669e08 [ 1029.123158][ T30] r4:00000000 [ 1029.123173][ T30] [<81ab6ec8>] (__mutex_lock_slowpath) from [<81ab6f1c>] (mutex_lock+0x3c/0x40) [ 1029.123260][ T30] [<81ab6ee0>] (mutex_lock) from [<804f4260>] (_vm_unmap_aliases+0x68/0x240) [ 1029.123473][ T30] [<804f41f8>] (_vm_unmap_aliases) from [<804f8048>] (vfree+0x16c/0x210) [ 1029.123566][ T30] r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:86081740 [ 1029.123587][ T30] r4:00000000 [ 1029.123601][ T30] [<804f7edc>] (vfree) from [<80563e54>] (execmem_free+0x30/0x50) [ 1029.123666][ T30] r9:83018405 r8:85fc6c00 r7:00000000 r6:83018400 r5:00001000 r4:7f077000 [ 1029.123682][ T30] [<80563e24>] (execmem_free) from [<803cb1cc>] (bpf_jit_free_exec+0x10/0x14) [ 1029.123737][ T30] r5:00001000 r4:ea60f000 [ 1029.123750][ T30] [<803cb1bc>] (bpf_jit_free_exec) from [<803cb5ac>] (bpf_jit_free+0x68/0xe4) [ 1029.123799][ T30] [<803cb544>] (bpf_jit_free) from [<803cc6d4>] (bpf_prog_free_deferred+0x140/0x158) [ 1029.123876][ T30] r5:860f238c r4:8613d780 [ 1029.123892][ T30] [<803cc594>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4) [ 1029.123948][ T30] r7:dddcfb40 r6:83018400 r5:860f238c r4:8613d780 [ 1029.123963][ T30] [<80275c04>] (process_one_work) from [<802764f8>] (worker_thread+0x1fc/0x3d8) [ 1029.124062][ T30] r10:61c88647 r9:85fc6c00 r8:8613d7ac r7:82804d80 r6:dddcfb40 r5:dddcfb60 [ 1029.124089][ T30] r4:8613d780 [ 1029.124160][ T30] [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280) [ 1029.124259][ T30] r10:00000000 r9:8613d780 r8:802762fc r7:ea661e60 r6:8613d800 r5:85fc6c00 [ 1029.124284][ T30] r4:00000001 [ 1029.124339][ T30] [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20) [ 1029.124393][ T30] Exception stack(0xea669fb0 to 0xea669ff8) [ 1029.124428][ T30] 9fa0: 00000000 00000000 00000000 00000000 [ 1029.124481][ T30] 9fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 [ 1029.124516][ T30] 9fe0: 00000000 00000000 00000000 00000000 00000013 00000000 [ 1029.124584][ T30] r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:8027f5d0 [ 1029.124605][ T30] r4:861443c0 [ 1029.125121][ T30] INFO: task kworker/0:90:6013 is blocked on a mutex likely owned by task kworker/0:91:6015. [ 1029.125157][ T30] task:kworker/0:91 state:R running task stack:0 pid:6015 tgid:6015 ppid:2 task_flags:0x4208060 flags:0x00000000 [ 1029.125249][ T30] Workqueue: events bpf_prog_free_deferred [ 1029.125293][ T30] Call trace: [ 1029.125313][ T30] [<81ab1a1c>] (__schedule) from [<81ab30fc>] (preempt_schedule_irq+0x40/0xa8) [ 1029.125402][ T30] r10:8280c9f8 r9:85fc2400 r8:80200c04 r7:ea659d54 r6:ffffffff r5:85fc2400 [ 1029.148798][ T30] r4:00000000 [ 1029.148894][ T30] [<81ab30bc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) [ 1029.148997][ T30] Exception stack(0xea659d20 to 0xea659d68) [ 1029.149037][ T30] 9d20: e5d22000 ebeef000 00000001 80239018 7f065000 00000001 82ace204 82acd5e0 [ 1029.149203][ T30] 9d40: 7f065000 ebeef000 8280c9f8 ea659d9c ea659da0 ea659d70 8022fe10 80239030 [ 1029.149226][ T30] 9d60: 80000013 ffffffff [ 1029.149257][ T30] r5:80000013 r4:80239030 [ 1029.149271][ T30] [<8022fdac>] (flush_tlb_kernel_range) from [<804f4024>] (__purge_vmap_area_lazy+0x284/0x458) [ 1029.149354][ T30] r4:82ace224 [ 1029.149369][ T30] [<804f3da0>] (__purge_vmap_area_lazy) from [<804f43dc>] (_vm_unmap_aliases+0x1e4/0x240) [ 1029.149512][ T30] r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:ea659dc0 r5:ea659e08 [ 1029.149534][ T30] r4:ea659dc0 [ 1029.149548][ T30] [<804f41f8>] (_vm_unmap_aliases) from [<804f8048>] (vfree+0x16c/0x210) [ 1029.149656][ T30] r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:86081040 [ 1029.149692][ T30] r4:00000000 [ 1029.149706][ T30] [<804f7edc>] (vfree) from [<80563e54>] (execmem_free+0x30/0x50) [ 1029.149770][ T30] r9:83018405 r8:85fc2400 r7:00000000 r6:83018400 r5:00001000 r4:7f073000 [ 1029.149785][ T30] [<80563e24>] (execmem_free) from [<803cb1cc>] (bpf_jit_free_exec+0x10/0x14) [ 1029.149839][ T30] r5:00001000 r4:e836d000 [ 1029.149852][ T30] [<803cb1bc>] (bpf_jit_free_exec) from [<803cb5ac>] (bpf_jit_free+0x68/0xe4) [ 1029.149900][ T30] [<803cb544>] (bpf_jit_free) from [<803cc6d4>] (bpf_prog_free_deferred+0x140/0x158) [ 1029.149949][ T30] r5:860fb78c r4:8613db00 [ 1029.149963][ T30] [<803cc594>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4) [ 1029.150017][ T30] r7:dddcfb40 r6:83018400 r5:860fb78c r4:8613db00 [ 1029.150031][ T30] [<80275c04>] (process_one_work) from [<802764f8>] (worker_thread+0x1fc/0x3d8) [ 1029.150127][ T30] r10:61c88647 r9:85fc2400 r8:8613db2c r7:82804d80 r6:dddcfb40 r5:dddcfb60 [ 1029.150163][ T30] r4:8613db00 [ 1029.150218][ T30] [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280) [ 1029.150302][ T30] r10:00000000 r9:8613db00 r8:802762fc r7:ea669e60 r6:8613db80 r5:85fc2400 [ 1029.150321][ T30] r4:00000001 [ 1029.150335][ T30] [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20) [ 1029.150371][ T30] Exception stack(0xea659fb0 to 0xea659ff8) [ 1029.150395][ T30] 9fa0: 00000000 00000000 00000000 00000000 [ 1029.150422][ T30] 9fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 [ 1029.150446][ T30] 9fe0: 00000000 00000000 00000000 00000000 00000013 00000000 [ 1029.150477][ T30] r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:8027f5d0 [ 1029.150495][ T30] r4:86146b00 [ 1029.150528][ T30] INFO: task kworker/0:92:6016 blocked for more than 430 seconds. [ 1029.150564][ T30] Not tainted syzkaller #0 [ 1029.150583][ T30] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 1029.150614][ T30] task:kworker/0:92 state:D stack:0 pid:6016 tgid:6016 ppid:2 task_flags:0x4208060 flags:0x00000000 [ 1029.150683][ T30] Workqueue: events bpf_prog_free_deferred [ 1029.150721][ T30] Call trace: [ 1029.150744][ T30] [<81ab1a1c>] (__schedule) from [<81ab2cc8>] (schedule+0x2c/0x130) [ 1029.150807][ T30] r10:ea68dd84 r9:829174a8 r8:60000013 r7:829174a8 r6:ea68dd8c r5:85fc6000 [ 1029.150823][ T30] r4:85fc6000 [ 1029.150836][ T30] [<81ab2c9c>] (schedule) from [<81ab2e50>] (schedule_preempt_disabled+0x18/0x24) [ 1029.150886][ T30] r5:85fc6000 r4:829174a4 [ 1029.150899][ T30] [<81ab2e38>] (schedule_preempt_disabled) from [<81ab64d4>] (__mutex_lock.constprop.0+0x658/0xf8c) [ 1029.150943][ T30] [<81ab5e7c>] (__mutex_lock.constprop.0) from [<81ab6edc>] (__mutex_lock_slowpath+0x14/0x18) [ 1029.150994][ T30] r10:8280c9a4 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:ea68de08 [ 1029.151054][ T30] r4:00000000 [ 1029.151068][ T30] [<81ab6ec8>] (__mutex_lock_slowpath) from [<81ab6f1c>] (mutex_lock+0x3c/0x40) [ 1029.151105][ T30] [<81ab6ee0>] (mutex_lock) from [<804f4260>] (_vm_unmap_aliases+0x68/0x240) [ 1029.151143][ T30] [<804f41f8>] (_vm_unmap_aliases) from [<804f8048>] (vfree+0x16c/0x210) [ 1029.151275][ T30] r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:86081fc0 [ 1029.151294][ T30] r4:00000000 [ 1029.151420][ T30] [<804f7edc>] (vfree) from [<80563e54>] (execmem_free+0x30/0x50) [ 1029.151481][ T30] r9:83018405 r8:85fc6000 r7:00000000 r6:83018400 r5:00001000 r4:7f065000 [ 1029.151497][ T30] [<80563e24>] (execmem_free) from [<803cb1cc>] (bpf_jit_free_exec+0x10/0x14) [ 1029.151548][ T30] r5:00001000 r4:dfbf7000 [ 1029.151602][ T30] [<803cb1bc>] (bpf_jit_free_exec) from [<803cb5ac>] (bpf_jit_free+0x68/0xe4) [ 1029.151649][ T30] [<803cb544>] (bpf_jit_free) from [<803cc6d4>] (bpf_prog_free_deferred+0x140/0x158) [ 1029.151696][ T30] r5:860e0b8c r4:8613dd00 [ 1029.151724][ T30] [<803cc594>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4) [ 1029.151777][ T30] r7:dddcfb40 r6:83018400 r5:860e0b8c r4:8613dd00 [ 1029.151828][ T30] [<80275c04>] (process_one_work) from [<802764f8>] (worker_thread+0x1fc/0x3d8) [ 1029.151886][ T30] r10:61c88647 r9:85fc6000 r8:8613dd2c r7:82804d80 r6:dddcfb40 r5:dddcfb60 [ 1029.151902][ T30] r4:8613dd00 [ 1029.151919][ T30] [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280) [ 1029.151973][ T30] r10:00000000 r9:8613dd00 r8:802762fc r7:ea661e60 r6:8613dc80 r5:85fc6000 [ 1029.151990][ T30] r4:00000001 [ 1029.152040][ T30] [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20) [ 1029.152079][ T30] Exception stack(0xea68dfb0 to 0xea68dff8) [ 1029.152103][ T30] dfa0: 00000000 00000000 00000000 00000000 [ 1029.152203][ T30] dfc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 [ 1029.152285][ T30] dfe0: 00000000 00000000 00000000 00000000 00000013 00000000 [ 1029.152334][ T30] r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:8027f5d0 [ 1029.152352][ T30] r4:86146b00 [ 1029.153087][ T30] INFO: task kworker/0:92:6016 is blocked on a mutex likely owned by task kworker/0:91:6015. [ 1029.153123][ T30] task:kworker/0:91 state:R running task stack:0 pid:6015 tgid:6015 ppid:2 task_flags:0x4208060 flags:0x00000000 [ 1029.153181][ T30] Workqueue: events bpf_prog_free_deferred [ 1029.153219][ T30] Call trace: [ 1029.153239][ T30] [<81ab1a1c>] (__schedule) from [<81ab30fc>] (preempt_schedule_irq+0x40/0xa8) [ 1029.153352][ T30] r10:8280c9f8 r9:85fc2400 r8:80200c04 r7:ea659d54 r6:ffffffff r5:85fc2400 [ 1029.153371][ T30] r4:00000000 [ 1029.153383][ T30] [<81ab30bc>] (preempt_schedule_irq) from [<80200c24>] (svc_preempt+0x8/0x18) [ 1029.153426][ T30] Exception stack(0xea659d20 to 0xea659d68) [ 1029.153459][ T30] 9d20: e5d22000 ebeef000 00000001 80239018 7f065000 00000001 82ace204 82acd5e0 [ 1029.153488][ T30] 9d40: 7f065000 ebeef000 8280c9f8 ea659d9c ea659da0 ea659d70 8022fe10 80239030 [ 1029.153539][ T30] 9d60: 80000013 ffffffff [ 1029.153562][ T30] r5:80000013 r4:80239030 [ 1029.153575][ T30] [<8022fdac>] (flush_tlb_kernel_range) from [<804f4024>] (__purge_vmap_area_lazy+0x284/0x458) [ 1029.153650][ T30] r4:82ace224 [ 1029.153664][ T30] [<804f3da0>] (__purge_vmap_area_lazy) from [<804f43dc>] (_vm_unmap_aliases+0x1e4/0x240) [ 1029.153722][ T30] r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:ea659dc0 r5:ea659e08 [ 1029.153738][ T30] r4:ea659dc0 [ 1029.153841][ T30] [<804f41f8>] (_vm_unmap_aliases) from [<804f8048>] (vfree+0x16c/0x210) [ 1029.153900][ T30] r10:83016170 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:86081040 [ 1029.154043][ T30] r4:00000000 [ 1029.154058][ T30] [<804f7edc>] (vfree) from [<80563e54>] (execmem_free+0x30/0x50) [ 1029.154154][ T30] r9:83018405 r8:85fc2400 r7:00000000 r6:83018400 r5:00001000 r4:7f073000 [ 1029.154176][ T30] [<80563e24>] (execmem_free) from [<803cb1cc>] (bpf_jit_free_exec+0x10/0x14) [ 1029.154253][ T30] r5:00001000 r4:e836d000 [ 1029.154274][ T30] [<803cb1bc>] (bpf_jit_free_exec) from [<803cb5ac>] (bpf_jit_free+0x68/0xe4) [ 1029.154332][ T30] [<803cb544>] (bpf_jit_free) from [<803cc6d4>] (bpf_prog_free_deferred+0x140/0x158) [ 1029.154385][ T30] r5:860fb78c r4:8613db00 [ 1029.154400][ T30] [<803cc594>] (bpf_prog_free_deferred) from [<80275db8>] (process_one_work+0x1b4/0x4f4) [ 1029.154460][ T30] r7:dddcfb40 r6:83018400 r5:860fb78c r4:8613db00 [ 1029.154475][ T30] [<80275c04>] (process_one_work) from [<802764f8>] (worker_thread+0x1fc/0x3d8) [ 1029.154741][ T30] r10:61c88647 r9:85fc2400 r8:8613db2c r7:82804d80 r6:dddcfb40 r5:dddcfb60 [ 1029.154949][ T30] r4:8613db00 [ 1029.154973][ T30] [<802762fc>] (worker_thread) from [<8027f6fc>] (kthread+0x12c/0x280) [ 1029.155043][ T30] r10:00000000 r9:8613db00 r8:802762fc r7:ea669e60 r6:8613db80 r5:85fc2400 [ 1029.155064][ T30] r4:00000001 [ 1029.155101][ T30] [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20) [ 1029.173307][ T30] Exception stack(0xea659fb0 to 0xea659ff8) [ 1029.173428][ T30] 9fa0: 00000000 00000000 00000000 00000000 [ 1029.173460][ T30] 9fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 [ 1029.173486][ T30] 9fe0: 00000000 00000000 00000000 00000000 00000013 00000000 [ 1029.173535][ T30] r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:8027f5d0 [ 1029.173554][ T30] r4:86146b00 [ 1029.173638][ T30] Future hung task reports are suppressed, see sysctl kernel.hung_task_warnings [ 1029.175306][ T30] NMI backtrace for cpu 1 [ 1029.175390][ T30] CPU: 1 UID: 0 PID: 30 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT [ 1029.175525][ T30] Hardware name: ARM-Versatile Express [ 1029.175596][ T30] Call trace: [ 1029.175863][ T30] [<80201a74>] (dump_backtrace) from [<80201b70>] (show_stack+0x18/0x1c) [ 1029.175986][ T30] r7:00000000 r6:00000113 r5:60000193 r4:8229579c [ 1029.176007][ T30] [<80201b58>] (show_stack) from [<8021edec>] (dump_stack_lvl+0x70/0x7c) [ 1029.176063][ T30] [<8021ed7c>] (dump_stack_lvl) from [<8021ee10>] (dump_stack+0x18/0x1c) [ 1029.176125][ T30] r5:00000001 r4:00000001 [ 1029.176143][ T30] [<8021edf8>] (dump_stack) from [<81a9b500>] (nmi_cpu_backtrace+0x160/0x17c) [ 1029.176208][ T30] [<81a9b3a0>] (nmi_cpu_backtrace) from [<81a9b64c>] (nmi_trigger_cpumask_backtrace+0x130/0x1d8) [ 1029.176277][ T30] r7:00000001 r6:8280c6d0 r5:8281af1c r4:ffffffff [ 1029.176297][ T30] [<81a9b51c>] (nmi_trigger_cpumask_backtrace) from [<8022f818>] (arch_trigger_cpumask_backtrace+0x18/0x1c) [ 1029.176380][ T30] r9:00007bd1 r8:8280c850 r7:00011ccc r6:00007bd1 r5:82ac27e4 r4:00000048 [ 1029.176402][ T30] [<8022f800>] (arch_trigger_cpumask_backtrace) from [<81aa315c>] (sys_info+0x68/0xa8) [ 1029.176456][ T30] [<81aa30f4>] (sys_info) from [<80383788>] (watchdog+0x464/0x8a0) [ 1029.176570][ T30] r5:82ac27e4 r4:8662ff0c [ 1029.176625][ T30] [<80383324>] (watchdog) from [<8027f6fc>] (kthread+0x12c/0x280) [ 1029.176764][ T30] r10:00000000 r9:00000000 r8:80383324 r7:832a3c00 r6:832a3c00 r5:832e1800 [ 1029.176810][ T30] r4:00000001 [ 1029.176909][ T30] [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20) [ 1029.177045][ T30] Exception stack(0xdf8d9fb0 to 0xdf8d9ff8) [ 1029.177186][ T30] 9fa0: 00000000 00000000 00000000 00000000 [ 1029.177226][ T30] 9fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 [ 1029.177260][ T30] 9fe0: 00000000 00000000 00000000 00000000 00000013 00000000 [ 1029.177613][ T30] r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:8027f5d0 [ 1029.177783][ T30] r4:83368e00 [ 1029.179506][ T30] Sending NMI from CPU 1 to CPUs 0: [ 1029.180890][ C0] NMI backtrace for cpu 0 [ 1029.180999][ C0] CPU: 0 UID: 0 PID: 2818 Comm: pr/ttyAMA-1 Not tainted syzkaller #0 PREEMPT [ 1029.181058][ C0] Hardware name: ARM-Versatile Express [ 1029.181086][ C0] PC is at _raw_spin_unlock_irqrestore+0x28/0x54 [ 1029.181183][ C0] LR is at pl011_console_device_unlock+0x20/0x24 [ 1029.181227][ C0] pc : [<81abc670>] lr : [<80aa3828>] psr: 60090013 [ 1029.181253][ C0] sp : eb1c1eb0 ip : eb1c1ec0 fp : eb1c1ebc [ 1029.181287][ C0] r10: 82959bc4 r9 : 00000000 r8 : 00000000 [ 1029.181309][ C0] r7 : 00000117 r6 : 82959b28 r5 : 00000000 r4 : 00000001 [ 1029.181332][ C0] r3 : 0000083b r2 : 00000000 r1 : 60090013 r0 : 842d7840 [ 1029.181360][ C0] Flags: nZCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment user [ 1029.181398][ C0] Control: 30c5387d Table: 84d9c080 DAC: fffffffd [ 1029.181421][ C0] Call trace: [ 1029.181468][ C0] [<81abc648>] (_raw_spin_unlock_irqrestore) from [<80aa3828>] (pl011_console_device_unlock+0x20/0x24) [ 1029.181545][ C0] [<80aa3808>] (pl011_console_device_unlock) from [<802e5720>] (nbcon_emit_one+0x88/0x100) [ 1029.181614][ C0] [<802e5698>] (nbcon_emit_one) from [<802e59a0>] (nbcon_kthread_func+0x208/0x2e4) [ 1029.181686][ C0] r6:82abf0fc r5:82959b28 r4:84f58000 [ 1029.181708][ C0] [<802e5798>] (nbcon_kthread_func) from [<8027f6fc>] (kthread+0x12c/0x280) [ 1029.181790][ C0] r10:00000000 r9:82959b28 r8:802e5798 r7:84657e80 r6:84657e80 r5:84f58000 [ 1029.181814][ C0] r4:00000001 [ 1029.181834][ C0] [<8027f5d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20) [ 1029.181889][ C0] Exception stack(0xeb1c1fb0 to 0xeb1c1ff8) [ 1029.181931][ C0] 1fa0: 00000000 00000000 00000000 00000000 [ 1029.181968][ C0] 1fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 [ 1029.181997][ C0] 1fe0: 00000000 00000000 00000000 00000000 00000013 00000000 [ 1029.182038][ C0] r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:8027f5d0 [ 1029.182059][ C0] r4:8463b980 1970/01/01 00:17:13 executed programs: 1195 [ 1037.750061][ T60] netdevsim netdevsim1 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 1037.881256][ T60] netdevsim netdevsim1 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 1038.041091][ T60] netdevsim netdevsim1 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 1038.189140][ T60] netdevsim netdevsim1 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0