[[36minfo[39;49m] Using makefile-style concurrent boot in runlevel 2.
[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[1G[[32m ok [39;49m8[?25h[?0c.
[ 14.974978][ C1] random: crng init done
[....] Starting periodic command scheduler: cron[?25l[?1c7[1G[[32m ok [39;49m8[?25h[?0c.
[....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[1G[[32m ok [39;49m8[?25h[?0c.
Debian GNU/Linux 7 syzkaller ttyS0
Warning: Permanently added '10.128.0.111' (ECDSA) to the list of known hosts.
2019/09/03 12:56:49 fuzzer started
2019/09/03 12:56:50 dialing manager at 10.128.0.105:43075
2019/09/03 12:56:50 syscalls: 84
2019/09/03 12:56:50 code coverage: enabled
2019/09/03 12:56:50 comparison tracing: enabled
2019/09/03 12:56:50 extra coverage: enabled
2019/09/03 12:56:50 setuid sandbox: enabled
2019/09/03 12:56:50 namespace sandbox: enabled
2019/09/03 12:56:50 Android sandbox: /sys/fs/selinux/policy does not exist
2019/09/03 12:56:50 fault injection: enabled
2019/09/03 12:56:50 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled
2019/09/03 12:56:50 net packet injection: /dev/net/tun can't be opened (open /dev/net/tun: no such device)
2019/09/03 12:56:50 net device setup: enabled
12:56:51 executing program 0:
syz_usb_connect(0x0, 0x403, &(0x7f0000000000)={{0x12, 0x1, 0x0, 0x74, 0x66, 0xe5, 0x40, 0x13d8, 0x20, 0x4f73, 0x0, 0x0, 0x0, 0x1, [{{0x9, 0x2, 0x12, 0x1, 0x0, 0x0, 0x0, 0x0, [{{0x9, 0x4, 0x82, 0x0, 0x0, 0xa, 0x80, 0x71}}]}}]}}, 0x0)
12:56:51 executing program 2:
r0 = syz_usb_connect(0x0, 0x36, &(0x7f0000000000)={{0x12, 0x1, 0x0, 0x74, 0x1a, 0xde, 0x8, 0x586, 0x341f, 0xe797, 0x0, 0x0, 0x0, 0x1, [{{0x9, 0x2, 0x24, 0x1, 0x0, 0x0, 0x0, 0x0, [{{0x9, 0x4, 0x5c, 0x0, 0x2, 0xff, 0xff, 0xff, 0x0, [], [{{0x9, 0x5, 0x8a}}, {{0x9, 0x5, 0x5}}]}}]}}]}}, 0x0)
syz_usb_control_io$hid(r0, &(0x7f0000000500)={0x24, 0x0, 0x0, 0x0, 0x0}, &(0x7f0000000d40)={0x2c, &(0x7f0000000540)={0x0, 0x0, 0x3, "1be097"}, 0x0, 0x0, 0x0, 0x0})
syz_usb_control_io$hid(r0, &(0x7f0000000140)={0x24, 0x0, 0x0, 0x0, 0x0}, &(0x7f0000002600)={0x2c, &(0x7f0000002380)={0x100000000, 0x0, 0x1, '_'}, 0x0, 0x0, 0x0, 0x0})
syz_usb_control_io$printer(r0, &(0x7f0000000400)={0x14, 0x0, 0x0}, &(0x7f0000000740)={0x34, &(0x7f0000000440)={0x0, 0x0, 0x1, "e0"}, 0x0, 0x0, 0x0, 0x0, 0x0})
12:56:51 executing program 3:
r0 = syz_usb_connect$hid(0x0, 0x36, &(0x7f0000000000)=ANY=[@ANYBLOB="12010000090000206d041cc340000000000109022400010000a000090400000103010100092100000001220500090581030000000000"], 0x0)
syz_usb_control_io(r0, &(0x7f0000001700)={0x2c, &(0x7f0000001400)={0x0, 0xa, 0xaf, {0xaf, 0x31, "b2bcdb11774cd5e3cae94840efbfe31aee0c6778dce234d362ca3d7a7a20ae51ba6d6cc8f15199763c3c94e5f7a0efcd03ffa2ededabcf03207120643dd521f404b55b514e604ce0d3aefee4c27acea809da11256bf9b104672603b3b1800971cef673c74c458a421de2041562569a912053e2e8b95319866c4afc7053ad3c5ccd831c3f7b6af3cc469198dae2dc72f0c67e59b5520802890839f08e4136a7d1b9929ea15e2d37f213d6c928f1"}}, &(0x7f00000014c0)={0x0, 0x3, 0x16, @string={0x16, 0x3, "753fdacad579b7d6905c00d2d482b8f0360d474f"}}, &(0x7f0000001500)={0x0, 0xf, 0x2f, {0x5, 0xf, 0x2f, 0x2, [@ss_cap={0xa}, @ssp_cap={0x20, 0x10, 0xa, 0x4a5e, 0x5, 0xfffffffffffffffd, 0xf00, 0x1ff, [0x3f00, 0xff0030, 0xff0000, 0x30, 0x3f00]}]}}, 0x0, 0x0}, &(0x7f0000001d00)={0xac, &(0x7f0000001740)={0x40, 0x29797470e1f9e4f2, 0x82, "96f13e4605f6c8db8dc422fbbf1b7c64177c4479e1f8ec711083c6aaa2d09c97f4b28d97709577c368a3596a6190a57ce62c26f8c3c5903b2700adcf4bd5eff67cc4a73275c0cd470afe650360bfb2126eef1caf4269539338e9f6811ac4696a2bc4cd6bf200f6bb13d3f6693807b8261a176caf2170a46f898618597fac204ce9c7"}, &(0x7f0000001800)={0x0, 0xa, 0x1, 0x9}, &(0x7f0000001840)={0x0, 0x8, 0x1, 0x3}, &(0x7f0000001880)={0x20, 0x81, 0x3, "72e220"}, &(0x7f00000018c0)={0x20, 0x82, 0x1, "f2"}, &(0x7f0000001900)={0x20, 0x83, 0x1, "ff"}, &(0x7f0000001940)={0x20, 0x84, 0x4, "d44b284c"}, &(0x7f0000001980)={0x20, 0x85, 0x3, "21bdd5"}, &(0x7f00000019c0)={0x20, 0x0, 0x4, {0x1, 0x1}}, &(0x7f0000001a00)={0x20, 0x0, 0x4, {0x1, 0x2}}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0})
syz_usb_control_io(r0, 0x0, 0x0)
syz_usb_control_io(r0, &(0x7f0000000300)={0x2c, &(0x7f0000000040)={0x0, 0x0, 0xf0, {0xf0, 0xa, "b141325fbb8a9b94b279849bbff4b5d16e17ede4f8b3076b9b0df08f34e2d850e690a4c3ec6868828b3b09fec19970ab53c462fd5a4a570e88629032927099b7f2a8fedb681c8c25ba8a376c3b0742382103e60850ff3f4ff702538f1e340a7596e1543d651a8b2026b92cdd27c9e9195022a6a370b28c66908938fde7b8d3486da8aff7c558163f791ee0345d6a3b1904637115e8082067671abc363a267683611feb065416d72d497224c0a8292f0618f323e42fdd8e8d6a3468d994bd72a3a5c9207463d462288f6457492ca884ff16ef29c924395eb60ba7c7760dd17ffa7835d92cb732bbef93ff477e39f2"}}, 0x0, 0x0, 0x0, 0x0}, &(0x7f0000000880)={0xac, 0x0, 0x0, &(0x7f00000003c0)={0x0, 0x8, 0x1, 0x7}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, &(0x7f0000000800)={0x40, 0x1e, 0x1, 0x4}, &(0x7f0000000840)={0x40, 0x21, 0x1, 0x62}})
12:56:51 executing program 4:
r0 = syz_usb_connect(0x0, 0x24, &(0x7f00000000c0)={{0x12, 0x1, 0x0, 0xb3, 0xd2, 0x6c, 0x8, 0x6e1, 0x9, 0x9980, 0x0, 0x0, 0x0, 0x1, [{{0x9, 0x2, 0x12, 0x1, 0x0, 0x0, 0x0, 0x0, [{{0x9, 0x4, 0xdd, 0x0, 0x0, 0x36, 0x50, 0x80}}]}}]}}, 0x0)
syz_usb_control_io(r0, 0x0, 0x0)
syz_usb_control_io$hid(r0, &(0x7f0000000180)={0x24, 0x0, 0x0, 0x0, 0x0}, &(0x7f00000003c0)={0x2c, &(0x7f00000001c0), 0x0, 0x0, 0x0, 0x0})
syz_usb_control_io(r0, 0x0, 0x0)
12:56:51 executing program 5:
r0 = syz_usb_connect(0x1, 0x2d, &(0x7f0000000380)=ANY=[@ANYBLOB="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"], 0x0)
r1 = syz_open_dev$char_usb(0xc, 0xb4, 0x0)
syz_usb_disconnect(r0)
write$char_usb(r1, 0x0, 0x2df)
12:56:51 executing program 1:
syz_usb_connect(0x0, 0x24, &(0x7f0000000000)={{0x12, 0x1, 0x0, 0x99, 0x84, 0x56, 0x8, 0x7ab, 0xfccd, 0x3200, 0x0, 0x0, 0x0, 0x1, [{{0x9, 0x2, 0x12, 0x1, 0x0, 0x0, 0x0, 0x0, [{{0x9, 0x4, 0x88, 0x0, 0x0, 0xd3, 0x5c, 0xdb}}]}}]}}, 0x0)
syzkaller login: [ 32.807303][ T1736] cgroup1: Unknown subsys name 'perf_event'
[ 32.835832][ T1737] cgroup1: Unknown subsys name 'perf_event'
[ 32.842769][ T1737] cgroup1: Unknown subsys name 'net_cls'
[ 32.873688][ T1736] cgroup1: Unknown subsys name 'net_cls'
[ 32.886933][ T1739] cgroup1: Unknown subsys name 'perf_event'
[ 32.896592][ T1741] cgroup1: Unknown subsys name 'perf_event'
[ 32.902957][ T1739] cgroup1: Unknown subsys name 'net_cls'
[ 32.909302][ T1741] cgroup1: Unknown subsys name 'net_cls'
[ 32.909548][ T1740] cgroup1: Unknown subsys name 'perf_event'
[ 32.945235][ T1740] cgroup1: Unknown subsys name 'net_cls'
[ 32.947146][ T1753] cgroup1: Unknown subsys name 'perf_event'
[ 32.957675][ T1753] cgroup1: Unknown subsys name 'net_cls'
[ 35.993412][ T83] usb 5-1: new high-speed USB device number 2 using dummy_hcd
[ 36.053628][ C1] ------------[ cut here ]------------
[ 36.059208][ C1] WARNING: CPU: 1 PID: 0 at kernel/kcov.c:684 kcov_remote_start.cold+0xc/0x26
[ 36.068032][ C1] Kernel panic - not syncing: panic_on_warn set ...
[ 36.074595][ C1] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 5.3.0-rc7+ #0
[ 36.081731][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 36.083391][ T12] usb 6-1: new low-speed USB device number 2 using dummy_hcd
[ 36.091766][ C1] Call Trace:
[ 36.091779][ C1]
[ 36.091797][ C1] dump_stack+0xca/0x13e
[ 36.091808][ C1] ? kcov_remote_stop+0x110/0x1bc
[ 36.091823][ C1] panic+0x2a3/0x6da
[ 36.118354][ C1] ? add_taint.cold+0x16/0x16
[ 36.123008][ C1] ? __probe_kernel_read+0x188/0x1d0
[ 36.123383][ T102] usb 1-1: new high-speed USB device number 2 using dummy_hcd
[ 36.128276][ C1] ? __warn.cold+0x5/0x4a
[ 36.128286][ C1] ? __warn+0xe3/0x1e0
[ 36.128297][ C1] ? kcov_remote_start.cold+0xc/0x26
[ 36.128305][ C1] __warn.cold+0x20/0x4a
[ 36.128321][ C1] ? __irq_work_queue_local+0xa3/0xe0
[ 36.135814][ C0] ------------[ cut here ]------------
[ 36.140057][ C1] ? kcov_remote_start.cold+0xc/0x26
[ 36.144153][ C0] WARNING: CPU: 0 PID: 102 at kernel/kcov.c:684 kcov_remote_start.cold+0xc/0x26
[ 36.149394][ C1] report_bug+0x262/0x2a0
[ 36.153600][ C0] Modules linked in:
[ 36.158946][ C1] do_error_trap+0x12b/0x1e0
[ 36.164373][ C0] CPU: 0 PID: 102 Comm: kworker/0:2 Not tainted 5.3.0-rc7+ #0
[ 36.169626][ C1] ? kcov_remote_start.cold+0xc/0x26
[ 36.178609][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 36.182915][ C1] do_invalid_op+0x32/0x40
[ 36.186780][ C0] Workqueue: usb_hub_wq hub_event
[ 36.191343][ C1] ? kcov_remote_start.cold+0xc/0x26
[ 36.198767][ C0] RIP: 0010:kcov_remote_start.cold+0xc/0x26
[ 36.204033][ C1] invalid_op+0x23/0x30
[ 36.214059][ C0] Code: b0 f8 ff ff 48 c7 c7 d8 dd a4 86 e8 54 93 ea ff 0f 0b 5b 4c 89 e7 5d 41 5c e9 9d e7 2f 04 48 c7 c7 d8 dd a4 86 e8 3a 93 ea ff <0f> 0b e9 93 fd ff ff 48 c7 c7 d8 dd a4 86 e8 27 93 ea ff 0f 0b e9
[ 36.218444][ C1] RIP: 0010:kcov_remote_start.cold+0xc/0x26
[ 36.223433][ C0] RSP: 0018:ffff8881db209ae8 EFLAGS: 00010082
[ 36.228690][ C1] Code: b0 f8 ff ff 48 c7 c7 d8 dd a4 86 e8 54 93 ea ff 0f 0b 5b 4c 89 e7 5d 41 5c e9 9d e7 2f 04 48 c7 c7 d8 dd a4 86 e8 3a 93 ea ff <0f> 0b e9 93 fd ff ff 48 c7 c7 d8 dd a4 86 e8 27 93 ea ff 0f 0b e9
[ 36.234545][ C0] RAX: 0000000000000024 RBX: ffff8881d56e2200 RCX: 0000000000000000
[ 36.238669][ C1] RSP: 0018:ffff8881db309ae8 EFLAGS: 00010082
[ 36.258251][ C0] RDX: 0000000000000000 RSI: ffffffff81288ddd RDI: ffffed103b64134f
[ 36.258262][ C0] RBP: ffff8881d56e2200 R08: 0000000000000024 R09: ffffed103b645d58
[ 36.264124][ C1] RAX: 0000000000000024 RBX: ffff8881d56ae600 RCX: 0000000000000000
[ 36.270161][ C0] R10: ffffed103b645d57 R11: ffff8881db22eabf R12: ffff8881c9519cc8
[ 36.290691][ C1] RDX: 0000000000000000 RSI: ffffffff81288ddd RDI: ffffed103b66134f
[ 36.298634][ C0] R13: ffff8881d5612138 R14: dffffc0000000000 R15: ffff8881b1642200
[ 36.304672][ C1] RBP: ffff8881d56ae600 R08: 0000000000000024 R09: ffffed103b665d58
[ 36.312618][ C0] FS: 0000000000000000(0000) GS:ffff8881db200000(0000) knlGS:0000000000000000
[ 36.320559][ C1] R10: ffffed103b665d57 R11: ffff8881db32eabf R12: ffff8881c98d5848
[ 36.328503][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 36.336448][ C1] R13: ffff8881d5610038 R14: dffffc0000000000 R15: ffff8881c89da500
[ 36.344393][ C0] CR2: 00007f55725c2000 CR3: 00000001b3405000 CR4: 00000000001406f0
[ 36.352341][ C1] ? vprintk_func+0x7d/0x113
[ 36.360278][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 36.369182][ C1] ? kcov_remote_start.cold+0xc/0x26
[ 36.377123][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 36.383702][ C1] dummy_timer+0x125f/0x301a
[ 36.391657][ C0] Call Trace:
[ 36.399637][ C1] ? lock_acquire+0x127/0x320
[ 36.404191][ C0]
[ 36.412149][ C1] ? dummy_udc_probe+0x930/0x930
[ 36.417405][ C0] dummy_timer+0x125f/0x301a
[ 36.425367][ C1] call_timer_fn+0x179/0x650
[ 36.429960][ C0] ? lock_acquire+0x127/0x320
[ 36.433221][ C1] ? dummy_udc_probe+0x930/0x930
[ 36.437866][ C0] ? dummy_udc_probe+0x930/0x930
[ 36.440703][ C1] ? msleep_interruptible+0x130/0x130
[ 36.440719][ C1] ? do_raw_spin_lock+0x11a/0x280
[ 36.445635][ C0] call_timer_fn+0x179/0x650
[ 36.450200][ C1] ? _raw_spin_unlock_irq+0x24/0x30
[ 36.454762][ C0] ? dummy_udc_probe+0x930/0x930
[ 36.459411][ C1] ? dummy_udc_probe+0x930/0x930
[ 36.464323][ C0] ? msleep_interruptible+0x130/0x130
[ 36.469230][ C1] run_timer_softirq+0x5cc/0x14b0
[ 36.474573][ C0] ? do_raw_spin_lock+0x11a/0x280
[ 36.479568][ C1] ? add_timer+0x7a0/0x7a0
[ 36.484130][ C0] ? mark_held_locks+0x9f/0xe0
[ 36.489297][ C1] ? ktime_get+0x162/0x1c0
[ 36.494213][ C0] ? _raw_spin_unlock_irq+0x24/0x30
[ 36.499227][ C1] ? lapic_next_event+0x4d/0x80
[ 36.504565][ C0] ? dummy_udc_probe+0x930/0x930
[ 36.509571][ C1] __do_softirq+0x221/0x912
[ 36.514575][ C0] run_timer_softirq+0x5cc/0x14b0
[ 36.518969][ C1] irq_exit+0x178/0x1a0
[ 36.523700][ C0] ? add_timer+0x7a0/0x7a0
[ 36.528096][ C1] smp_apic_timer_interrupt+0x12f/0x500
[ 36.533262][ C0] ? mark_lock+0xbc/0x1130
[ 36.538082][ C1] apic_timer_interrupt+0xf/0x20
[ 36.542986][ C0] __do_softirq+0x221/0x912
[ 36.547456][ C1]
[ 36.552457][ C0] irq_exit+0x178/0x1a0
[ 36.556582][ C1] RIP: 0010:default_idle+0x28/0x2e0
[ 36.560968][ C0] smp_apic_timer_interrupt+0x12f/0x500
[ 36.566481][ C1] Code: 90 90 41 56 41 55 65 44 8b 2d 54 d8 93 7a 41 54 55 53 0f 1f 44 00 00 e8 46 49 d5 fb e9 07 00 00 00 0f 00 2d ea 7d 54 00 fb f4 <65> 44 8b 2d 30 d8 93 7a 0f 1f 44 00 00 5b 5d 41 5c 41 5d 41 5e c3
[ 36.570960][ C0] apic_timer_interrupt+0xf/0x20
[ 36.575879][ C1] RSP: 0018:ffff8881da217dc8 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
[ 36.580349][ C0]
[ 36.583269][ C1] RAX: 0000000000000007 RBX: ffff8881da1fb000 RCX: 0000000000000000
[ 36.587403][ C0] RIP: 0010:console_unlock+0xb4f/0xc40
[ 36.592564][ C1] RDX: 0000000000000000 RSI: 0000000000000006 RDI: ffff8881da1fb844
[ 36.598343][ C0] Code: 32 fe ff ff e8 52 9f 15 00 48 8b bc 24 80 00 00 00 e8 c5 dd ff ff e9 29 fb ff ff e8 3b 9f 15 00 e8 e6 c8 1a 00 ff 74 24 30 9d 15 fb ff ff e8 87 47 3c 00 e9 de f6 ff ff e8 8d 47 3c 00 e9 98
[ 36.617937][ C1] RBP: ffffed103b43f600 R08: ffff8881da1fb000 R09: 0000000000000000
[ 36.622852][ C0] RSP: 0018:ffff8881d5077660 EFLAGS: 00000212 ORIG_RAX: ffffffffffffff13
[ 36.631234][ C1] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000001
[ 36.631243][ C1] R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000000
[ 36.634155][ C0] RAX: 0000000000000007 RBX: 0000000000000200 RCX: 0000000000000006
[ 36.642117][ C1] ? default_idle+0x1a/0x2e0
[ 36.647534][ C0] RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffff8881d76d3844
[ 36.655486][ C1] do_idle+0x3c2/0x4f0
[ 36.676185][ C0] RBP: 0000000000000001 R08: ffff8881d76d3000 R09: fffffbfff11ad7a1
[ 36.684136][ C1] ? __wake_up_common+0x147/0x640
[ 36.692509][ C0] R10: fffffbfff11ad7a0 R11: ffffffff88d6bd07 R12: 0000000000000053
[ 36.700459][ C1] ? arch_cpu_idle_exit+0x40/0x40
[ 36.708401][ C0] R13: dffffc0000000000 R14: ffffffff8290b160 R15: ffffffff87077810
[ 36.716350][ C1] ? _raw_spin_unlock_irqrestore+0x3e/0x50
[ 36.720920][ C0] ? netconsole_netdev_event+0x2a0/0x2a0
[ 36.728866][ C1] ? lockdep_hardirqs_on+0x379/0x580
[ 36.732903][ C0] vprintk_emit+0x171/0x3e0
[ 36.740855][ C1] cpu_startup_entry+0x14/0x20
[ 36.745849][ C0] dev_vprintk_emit+0x4fc/0x541
[ 36.753794][ C1] start_secondary+0x297/0x340
[ 36.758790][ C0] ? devm_device_remove_groups.cold+0x18/0x18
[ 36.766743][ C1] ? set_cpu_sibling_map+0x1ff0/0x1ff0
[ 36.772524][ C0] ? hub_port_reset+0xf4b/0x1460
[ 36.778131][ C1] secondary_startup_64+0xa4/0xb0
[ 36.783385][ C0] ? lock_downgrade+0x6e0/0x6e0
[ 36.828329][ C0] ? usb_set_device_state+0x125/0x3d0
[ 36.833679][ C0] dev_printk_emit+0xba/0xf1
[ 36.838248][ C0] ? dev_vprintk_emit+0x541/0x541
[ 36.843262][ C0] ? down_read_non_owner+0x440/0x440
[ 36.848527][ C0] ? _raw_spin_unlock_irqrestore+0x3e/0x50
[ 36.854308][ C0] ? lockdep_hardirqs_on+0x379/0x580
[ 36.859575][ C0] __dev_printk+0x1db/0x203
[ 36.864057][ C0] _dev_info+0xd7/0x109
[ 36.869930][ C0] ? _dev_notice+0x109/0x109
[ 36.874507][ C0] ? hub_resume+0x3b0/0x3b0
[ 36.878984][ C0] ? hub_event+0x15d3/0x3640
[ 36.883551][ C0] ? update_rt_rq_load_avg+0x9d0/0xa30
[ 36.888984][ C0] ? usb_set_device_state+0x125/0x3d0
[ 36.894330][ C0] hub_port_init.cold+0x2e6/0x35b
[ 36.899331][ C0] ? wait_for_completion+0x3c0/0x3c0
[ 36.904942][ C0] ? _raw_spin_unlock_irqrestore+0x3e/0x50
[ 36.910722][ C0] hub_event+0x197f/0x3640
[ 36.915117][ C0] ? hub_port_debounce+0x260/0x260
[ 36.920205][ C0] process_one_work+0x92b/0x1530
[ 36.925122][ C0] ? pwq_dec_nr_in_flight+0x310/0x310
[ 36.930470][ C0] ? do_raw_spin_lock+0x11a/0x280
[ 36.935473][ C0] worker_thread+0x96/0xe20
[ 36.939954][ C0] ? process_one_work+0x1530/0x1530
[ 36.945129][ C0] kthread+0x318/0x420
[ 36.949176][ C0] ? kthread_create_on_node+0xf0/0xf0
[ 36.954532][ C0] ret_from_fork+0x24/0x30
[ 36.958931][ C0] irq event stamp: 2789
[ 36.963066][ C0] hardirqs last enabled at (2788): [] _raw_spin_unlock_irq+0x24/0x30
[ 36.972758][ C0] hardirqs last disabled at (2789): [] _raw_spin_lock_irqsave+0xf/0x50
[ 36.982537][ C0] softirqs last enabled at (1352): [] srcu_invoke_callbacks+0x1f4/0x320
[ 36.992500][ C0] softirqs last disabled at (2785): [] irq_exit+0x178/0x1a0
[ 37.001318][ C0] ---[ end trace 188404645de17c7c ]---
[ 37.006970][ C0]
[ 37.009272][ C0] ================================
[ 37.014352][ C0] WARNING: inconsistent lock state
[ 37.019434][ C0] 5.3.0-rc7+ #0 Tainted: G W
[ 37.025296][ C0] --------------------------------
[ 37.030385][ C0] inconsistent {SOFTIRQ-ON-W} -> {IN-SOFTIRQ-W} usage.
[ 37.037217][ C0] kworker/0:2/102 [HC0[0]:SC1[1]:HE0:SE0] takes:
[ 37.043512][ C0] 000000005679709c (&(&kcov->lock)->rlock){+.?.}, at: kcov_remote_stop+0x72/0x1bc
[ 37.052686][ C0] {SOFTIRQ-ON-W} state was registered at:
[ 37.058380][ C0] lock_acquire+0x127/0x320
[ 37.062945][ C0] _raw_spin_lock+0x27/0x40
[ 37.067507][ C0] kcov_ioctl+0x35/0x430
[ 37.071819][ C0] do_vfs_ioctl+0xd2d/0x1330
[ 37.076470][ C0] ksys_ioctl+0x9b/0xc0
[ 37.080683][ C0] __x64_sys_ioctl+0x6f/0xb0
[ 37.085333][ C0] do_syscall_64+0xb7/0x580
[ 37.089899][ C0] entry_SYSCALL_64_after_hwframe+0x49/0xbe
[ 37.095848][ C0] irq event stamp: 2789
[ 37.099978][ C0] hardirqs last enabled at (2788): [] _raw_spin_unlock_irq+0x24/0x30
[ 37.109667][ C0] hardirqs last disabled at (2789): [] _raw_spin_lock_irqsave+0xf/0x50
[ 37.119443][ C0] softirqs last enabled at (1352): [] srcu_invoke_callbacks+0x1f4/0x320
[ 37.129389][ C0] softirqs last disabled at (2785): [] irq_exit+0x178/0x1a0
[ 37.138201][ C0]
[ 37.138201][ C0] other info that might help us debug this:
[ 37.146234][ C0] Possible unsafe locking scenario:
[ 37.146234][ C0]
[ 37.153656][ C0] CPU0
[ 37.156913][ C0] ----
[ 37.160167][ C0] lock(&(&kcov->lock)->rlock);
[ 37.165078][ C0]
[ 37.168506][ C0] lock(&(&kcov->lock)->rlock);
[ 37.173587][ C0]
[ 37.173587][ C0] *** DEADLOCK ***
[ 37.173587][ C0]
[ 37.181707][ C0] 6 locks held by kworker/0:2/102:
[ 37.186783][ C0] #0: 000000007c2182ee ((wq_completion)usb_hub_wq){+.+.}, at: process_one_work+0x827/0x1530
[ 37.196911][ C0] #1: 00000000986771fb ((work_completion)(&hub->events)){+.+.}, at: process_one_work+0x85b/0x1530
[ 37.207560][ C0] #2: 00000000fbd7a171 (&dev->mutex){....}, at: hub_event+0x17c/0x3640
[ 37.215863][ C0] #3: 000000000d62188c (&port_dev->status_lock){+.+.}, at: hub_event+0x196a/0x3640
[ 37.225206][ C0] #4: 00000000f1b27582 (hcd->address0_mutex){+.+.}, at: hub_port_init+0x1b6/0x2d30
[ 37.234548][ C0] #5: 0000000034d76173 ((&dum_hcd->timer)){+.-.}, at: call_timer_fn+0xcd/0x650
[ 37.243560][ C0]
[ 37.243560][ C0] stack backtrace:
[ 37.249429][ C0] CPU: 0 PID: 102 Comm: kworker/0:2 Tainted: G W 5.3.0-rc7+ #0
[ 37.258244][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 37.268290][ C0] Workqueue: usb_hub_wq hub_event
[ 37.273284][ C0] Call Trace:
[ 37.276544][ C0]
[ 37.279372][ C0] dump_stack+0xca/0x13e
[ 37.283588][ C0] mark_lock+0xc27/0x1130
[ 37.287890][ C0] ? check_usage_backwards+0x2e0/0x2e0
[ 37.293325][ C0] __lock_acquire+0x19a7/0x3b50
[ 37.298150][ C0] ? find_held_lock+0x2d/0x110
[ 37.302902][ C0] ? __usb_hcd_giveback_urb+0x1f2/0x470
[ 37.308421][ C0] ? mark_held_locks+0xe0/0xe0
[ 37.313156][ C0] ? lock_downgrade+0x6e0/0x6e0
[ 37.317982][ C0] ? refcount_sub_and_test_checked+0x130/0x1c0
[ 37.324111][ C0] lock_acquire+0x127/0x320
[ 37.328588][ C0] ? kcov_remote_stop+0x72/0x1bc
[ 37.333499][ C0] _raw_spin_lock+0x27/0x40
[ 37.337983][ C0] ? kcov_remote_stop+0x72/0x1bc
[ 37.342903][ C0] kcov_remote_stop+0x72/0x1bc
[ 37.347638][ C0] ? kcov_remote_start.cold+0xc/0x26
[ 37.352902][ C0] dummy_timer+0x1276/0x301a
[ 37.357479][ C0] ? lock_acquire+0x127/0x320
[ 37.362140][ C0] ? dummy_udc_probe+0x930/0x930
[ 37.367053][ C0] call_timer_fn+0x179/0x650
[ 37.371617][ C0] ? dummy_udc_probe+0x930/0x930
[ 37.376542][ C0] ? msleep_interruptible+0x130/0x130
[ 37.381894][ C0] ? do_raw_spin_lock+0x11a/0x280
[ 37.386894][ C0] ? mark_held_locks+0x9f/0xe0
[ 37.391635][ C0] ? _raw_spin_unlock_irq+0x24/0x30
[ 37.396807][ C0] ? dummy_udc_probe+0x930/0x930
[ 37.401743][ C0] run_timer_softirq+0x5cc/0x14b0
[ 37.406750][ C0] ? add_timer+0x7a0/0x7a0
[ 37.411143][ C0] ? mark_lock+0xbc/0x1130
[ 37.416182][ C0] __do_softirq+0x221/0x912
[ 37.420661][ C0] irq_exit+0x178/0x1a0
[ 37.424793][ C0] smp_apic_timer_interrupt+0x12f/0x500
[ 37.430327][ C0] apic_timer_interrupt+0xf/0x20
[ 37.435236][ C0]
[ 37.438163][ C0] RIP: 0010:console_unlock+0xb4f/0xc40
[ 37.443602][ C0] Code: 32 fe ff ff e8 52 9f 15 00 48 8b bc 24 80 00 00 00 e8 c5 dd ff ff e9 29 fb ff ff e8 3b 9f 15 00 e8 e6 c8 1a 00 ff 74 24 30 9d 15 fb ff ff e8 87 47 3c 00 e9 de f6 ff ff e8 8d 47 3c 00 e9 98
[ 37.463183][ C0] RSP: 0018:ffff8881d5077660 EFLAGS: 00000212 ORIG_RAX: ffffffffffffff13
[ 37.471570][ C0] RAX: 0000000000000007 RBX: 0000000000000200 RCX: 0000000000000006
[ 37.479515][ C0] RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffff8881d76d3844
[ 37.487460][ C0] RBP: 0000000000000001 R08: ffff8881d76d3000 R09: fffffbfff11ad7a1
[ 37.495408][ C0] R10: fffffbfff11ad7a0 R11: ffffffff88d6bd07 R12: 0000000000000053
[ 37.503354][ C0] R13: dffffc0000000000 R14: ffffffff8290b160 R15: ffffffff87077810
[ 37.511309][ C0] ? netconsole_netdev_event+0x2a0/0x2a0
[ 37.516918][ C0] vprintk_emit+0x171/0x3e0
[ 37.521400][ C0] dev_vprintk_emit+0x4fc/0x541
[ 37.526227][ C0] ? devm_device_remove_groups.cold+0x18/0x18
[ 37.532272][ C0] ? hub_port_reset+0xf4b/0x1460
[ 37.537183][ C0] ? lock_downgrade+0x6e0/0x6e0
[ 37.542009][ C0] ? usb_set_device_state+0x125/0x3d0
[ 37.547364][ C0] dev_printk_emit+0xba/0xf1
[ 37.551930][ C0] ? dev_vprintk_emit+0x541/0x541
[ 37.556938][ C0] ? down_read_non_owner+0x440/0x440
[ 37.562198][ C0] ? _raw_spin_unlock_irqrestore+0x3e/0x50
[ 37.567978][ C0] ? lockdep_hardirqs_on+0x379/0x580
[ 37.573237][ C0] __dev_printk+0x1db/0x203
[ 37.577805][ C0] _dev_info+0xd7/0x109
[ 37.581937][ C0] ? _dev_notice+0x109/0x109
[ 37.586504][ C0] ? hub_resume+0x3b0/0x3b0
[ 37.590982][ C0] ? hub_event+0x15d3/0x3640
[ 37.595550][ C0] ? update_rt_rq_load_avg+0x9d0/0xa30
[ 37.600997][ C0] ? usb_set_device_state+0x125/0x3d0
[ 37.606344][ C0] hub_port_init.cold+0x2e6/0x35b
[ 37.611359][ C0] ? wait_for_completion+0x3c0/0x3c0
[ 37.616624][ C0] ? _raw_spin_unlock_irqrestore+0x3e/0x50
[ 37.622404][ C0] hub_event+0x197f/0x3640
[ 37.626798][ C0] ? hub_port_debounce+0x260/0x260
[ 37.631887][ C0] process_one_work+0x92b/0x1530
[ 37.636809][ C0] ? pwq_dec_nr_in_flight+0x310/0x310
[ 37.642160][ C0] ? do_raw_spin_lock+0x11a/0x280
[ 37.647165][ C0] worker_thread+0x96/0xe20
[ 37.651656][ C0] ? process_one_work+0x1530/0x1530
[ 37.656828][ C0] kthread+0x318/0x420
[ 37.660872][ C0] ? kthread_create_on_node+0xf0/0xf0
[ 37.666219][ C0] ret_from_fork+0x24/0x30
[ 37.671232][ C1] Kernel Offset: disabled
[ 37.675561][ C1] Rebooting in 86400 seconds..