[ 1.626194] ip (256) used greatest stack depth: 12248 bytes left
[ 1.642030] br0: port 1(s0) entered blocking state
[ 1.642093] br0: port 1(s0) entered disabled state
[ 1.642148] s0: entered allmulticast mode
[ 1.642216] s0: entered promiscuous mode
[ 1.650794] bond0: (slave eth0): making interface the new active one
[ 1.650861] bond0: (slave eth0): Enslaving as an active interface with an up link
[ 1.650995] br0: port 1(s0) entered blocking state
[ 1.651040] br0: port 1(s0) entered forwarding state
[ 1.673507] ip (261) used greatest stack depth: 12216 bytes left
[ 1.687998] br0: port 2(s1) entered blocking state
[ 1.688065] br0: port 2(s1) entered disabled state
[ 1.688117] s1: entered allmulticast mode
[ 1.688185] s1: entered promiscuous mode
[ 1.695878] bond0: (slave eth1): Enslaving as a backup interface with an up link
[ 1.695989] br0: port 2(s1) entered blocking state
[ 1.696059] br0: port 2(s1) entered forwarding state
[ 1.767992] br0: port 3(c0) entered blocking state
[ 1.768065] br0: port 3(c0) entered disabled state
[ 1.768117] c0: entered allmulticast mode
[ 1.768184] c0: entered promiscuous mode
[ 1.777455] br0: port 3(c0) entered blocking state
[ 1.777509] br0: port 3(c0) entered forwarding state
[ 7.200912] bond0 (unregistering): (slave eth0): Releasing backup interface
[ 7.206735] bond0 (unregistering): (slave eth1): Releasing backup interface
[ 7.215675] bond0 (unregistering): Released all slaves
[ 7.216011] br0: port 1(s0) entered disabled state
[ 7.216092] br0: port 2(s1) entered disabled state
[ 7.247906] bond0: (slave eth0): making interface the new active one
[ 7.248015] bond0: (slave eth0): Enslaving as an active interface with an up link
[ 7.248116] br0: port 1(s0) entered blocking state
[ 7.248164] br0: port 1(s0) entered forwarding state
[ 7.258622] bond0: (slave eth1): Enslaving as a backup interface with an up link
[ 7.258747] br0: port 2(s1) entered blocking state
[ 7.258822] br0: port 2(s1) entered forwarding state
[ 7.267698] Oops: stack segment: 0000 [#1] SMP NOPTI
[ 7.267753] CPU: 1 UID: 0 PID: 267 Comm: kworker/u16:2 Not tainted 6.16.0-rc3-virtme #1 PREEMPT(voluntary)
[ 7.267829] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 7.267882] Workqueue: bond0 bond_arp_monitor
[ 7.267931] RIP: 0010:bond_arp_send.constprop.0+0x40/0x90
[ 7.267975] Code: 00 00 53 48 8b 0f 48 89 fb bf 01 00 00 00 6a 00 ff b1 b8 03 00 00 e8 1f 14 29 00 5a 59 48 85 c0 74 3e 49 89 c4 48 85 ed 74 1f <66> 83 7d 00 ff 74 18 48 89 c6 48 89 ef e8 6e fb ff ff 84 c0 75 09
[ 7.268112] RSP: 0018:ffffa6dc406bfd48 EFLAGS: 00010206
[ 7.268155] RAX: ffff8e62432d6500 RBX: ffff8e624358e800 RCX: 0000000000000000
[ 7.268218] RDX: ffff8e62435d5928 RSI: 000000000a0200c0 RDI: 0000000000000008
[ 7.268280] RBP: 00ffa6dc40249000 R08: ffff8e62435d5928 R09: 000000000000001c
[ 7.268336] R10: ffff8e6241f67210 R11: ffffffff997e768e R12: ffff8e62432d6500
[ 7.268392] R13: ffff8e624358e800 R14: ffffffffffffff9b R15: 00000000fffb87bb
[ 7.268456] FS: 0000000000000000(0000) GS:ffff8e62e3df8000(0000) knlGS:0000000000000000
[ 7.268522] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 7.268574] CR2: 0000557104a23528 CR3: 0000000035442004 CR4: 0000000000772ef0
[ 7.268637] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 7.268698] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 7.268755] PKRU: 55555554
[ 7.268773] Call Trace:
[ 7.268794]
[ 7.268818] bond_arp_send_all+0x1a3/0x1e0
[ 7.268852] ? sched_clock+0x10/0x30
[ 7.268888] bond_arp_monitor+0xc01/0x1140
[ 7.268922] ? __schedule+0x4eb/0xb40
[ 7.268957] process_one_work+0x168/0x390
[ 7.268994] worker_thread+0x29d/0x3c0
[ 7.269027] ? __pfx_worker_thread+0x10/0x10
[ 7.269070] kthread+0x104/0x200
[ 7.269105] ? __pfx_kthread+0x10/0x10
[ 7.269140] ? __pfx_kthread+0x10/0x10
[ 7.269175] ret_from_fork+0x82/0xf0
[ 7.269209] ? __pfx_kthread+0x10/0x10
[ 7.269243] ret_from_fork_asm+0x1a/0x30
[ 7.269280]
[ 7.269303] Modules linked in:
[ 7.269365] ---[ end trace 0000000000000000 ]---
[ 7.269414] RIP: 0010:bond_arp_send.constprop.0+0x40/0x90
[ 7.269459] Code: 00 00 53 48 8b 0f 48 89 fb bf 01 00 00 00 6a 00 ff b1 b8 03 00 00 e8 1f 14 29 00 5a 59 48 85 c0 74 3e 49 89 c4 48 85 ed 74 1f <66> 83 7d 00 ff 74 18 48 89 c6 48 89 ef e8 6e fb ff ff 84 c0 75 09
[ 7.269599] RSP: 0018:ffffa6dc406bfd48 EFLAGS: 00010206
[ 7.269648] RAX: ffff8e62432d6500 RBX: ffff8e624358e800 RCX: 0000000000000000
[ 7.269710] RDX: ffff8e62435d5928 RSI: 000000000a0200c0 RDI: 0000000000000008
[ 7.269776] RBP: 00ffa6dc40249000 R08: ffff8e62435d5928 R09: 000000000000001c
[ 7.269838] R10: ffff8e6241f67210 R11: ffffffff997e768e R12: ffff8e62432d6500
[ 7.269894] R13: ffff8e624358e800 R14: ffffffffffffff9b R15: 00000000fffb87bb
[ 7.269952] FS: 0000000000000000(0000) GS:ffff8e62e3df8000(0000) knlGS:0000000000000000
[ 7.270014] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 7.270066] CR2: 0000557104a23528 CR3: 0000000035442004 CR4: 0000000000772ef0
[ 7.270129] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 7.270190] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 7.270246] PKRU: 55555554
[ 19.075845] Oops: general protection fault, probably for non-canonical address 0xffa6dc40249000: 0000 [#2] SMP NOPTI
[ 19.075963] CPU: 2 UID: 0 PID: 387 Comm: grep Tainted: G D 6.16.0-rc3-virtme #1 PREEMPT(voluntary)
[ 19.076034] Tainted: [D]=DIE
[ 19.076061] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 19.076099] RIP: 0010:bond_info_seq_show+0x731/0x970
[ 19.076139] Code: 10 02 0f 84 18 01 00 00 48 c7 c2 50 b4 1c 9a be 40 00 00 00 48 8d 7c 24 20 e8 db ad 3a 00 41 89 c7 4d 85 e4 0f 84 8e 00 00 00 <66> 41 83 3c 24 ff 0f 84 82 00 00 00 4d 89 e2 45 31 f6 eb 37 be 40
[ 19.076249] RSP: 0018:ffffa6dc405dfd58 EFLAGS: 00010206
[ 19.076284] RAX: 000000000000000b RBX: ffff8e62458eab38 RCX: 0000000000000001
[ 19.076334] RDX: 0000000000000000 RSI: ffffffff9a1cb454 RDI: ffffa6dc405dfd82
[ 19.076379] RBP: ffff8e624311a000 R08: ffffffff9a1cb455 R09: ffffffff9a1cb455
[ 19.076423] R10: 2e6e2e6e2e6e2820 R11: 0000000000000004 R12: 00ffa6dc40249000
[ 19.076467] R13: ffff8e62458ea9c0 R14: ffff8e624311a028 R15: 000000000000000b
[ 19.076514] FS: 00007f08bac45740(0000) GS:ffff8e62e3e78000(0000) knlGS:0000000000000000
[ 19.076563] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 19.076605] CR2: 0000558cde19f7f8 CR3: 0000000006b06001 CR4: 0000000000772ef0
[ 19.076655] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 19.076700] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 19.076750] PKRU: 55555554
[ 19.076765] Call Trace:
[ 19.076781]
[ 19.076801] ? __kvmalloc_node_noprof+0x39d/0x540
[ 19.076840] ? seq_read_iter+0x385/0x4a0
[ 19.076868] seq_read_iter+0x10e/0x4a0
[ 19.076896] proc_reg_read_iter+0x4d/0x90
[ 19.076924] ? __do_sys_newfstat+0x34/0x60
[ 19.076952] vfs_read+0x26d/0x380
[ 19.076980] ksys_read+0x65/0xe0
[ 19.077008] do_syscall_64+0xa4/0x270
[ 19.077047] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 19.077082] RIP: 0033:0x7f08bad46292
[ 19.077109] Code: c0 e9 b2 fe ff ff 50 48 8d 3d 6a 15 0c 00 e8 65 e1 01 00 0f 1f 44 00 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 0f 05 <48> 3d 00 f0 ff ff 77 56 c3 0f 1f 44 00 00 48 83 ec 28 48 89 54 24
[ 19.077219] RSP: 002b:00007ffda3bda808 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[ 19.077269] RAX: ffffffffffffffda RBX: 0000000000018000 RCX: 00007f08bad46292
[ 19.077314] RDX: 0000000000018000 RSI: 0000558cde187000 RDI: 0000000000000005
[ 19.077358] RBP: 0000558cde187000 R08: 0000000000000003 R09: 0000000000000000
[ 19.077403] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffda3bda8e0
[ 19.077447] R13: 0000000000000005 R14: 0000000000001000 R15: 0000000000000005
[ 19.077493]
[ 19.077513] Modules linked in:
[ 19.077573] ---[ end trace 0000000000000000 ]---
[ 19.077619] RIP: 0010:bond_arp_send.constprop.0+0x40/0x90
[ 19.077677] Code: 00 00 53 48 8b 0f 48 89 fb bf 01 00 00 00 6a 00 ff b1 b8 03 00 00 e8 1f 14 29 00 5a 59 48 85 c0 74 3e 49 89 c4 48 85 ed 74 1f <66> 83 7d 00 ff 74 18 48 89 c6 48 89 ef e8 6e fb ff ff 84 c0 75 09
[ 19.077798] RSP: 0018:ffffa6dc406bfd48 EFLAGS: 00010206
[ 19.077843] RAX: ffff8e62432d6500 RBX: ffff8e624358e800 RCX: 0000000000000000
[ 19.077905] RDX: ffff8e62435d5928 RSI: 000000000a0200c0 RDI: 0000000000000008
[ 19.077966] RBP: 00ffa6dc40249000 R08: ffff8e62435d5928 R09: 000000000000001c
[ 19.078027] R10: ffff8e6241f67210 R11: ffffffff997e768e R12: ffff8e62432d6500
[ 19.078087] R13: ffff8e624358e800 R14: ffffffffffffff9b R15: 00000000fffb87bb
[ 19.078148] FS: 00007f08bac45740(0000) GS:ffff8e62e3e78000(0000) knlGS:0000000000000000
[ 19.078210] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 19.078262] CR2: 0000558cde19f7f8 CR3: 0000000006b06001 CR4: 0000000000772ef0
[ 19.078325] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 19.078386] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 19.078446] PKRU: 55555554
[ 19.078544] ------------[ cut here ]------------
[ 19.078582] Voluntary context switch within RCU read-side critical section!
[ 19.078589] WARNING: CPU: 2 PID: 387 at kernel/rcu/tree_plugin.h:332 rcu_note_context_switch+0x495/0x5a0
[ 19.078695] Modules linked in:
[ 19.078717] CPU: 2 UID: 0 PID: 387 Comm: grep Tainted: G D 6.16.0-rc3-virtme #1 PREEMPT(voluntary)
[ 19.078783] Tainted: [D]=DIE
[ 19.078805] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 19.078842] RIP: 0010:rcu_note_context_switch+0x495/0x5a0
[ 19.078877] Code: 00 00 00 be 01 00 00 00 48 89 ef e8 35 cc fe ff e9 3f fc ff ff c6 05 f2 90 85 01 01 90 48 c7 c7 20 9a 0d 9a e8 3c f1 f4 ff 90 <0f> 0b 90 90 e9 b5 fb ff ff 80 7b 11 00 0f 84 40 fe ff ff 90 0f 0b
[ 19.078987] RSP: 0018:ffffa6dc405dfd40 EFLAGS: 00010082
[ 19.079022] RAX: 0000000000000000 RBX: ffff8e627ed2b5c0 RCX: 00000000ffffdfff
[ 19.079067] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001
[ 19.079111] RBP: ffff8e62430c5c00 R08: ffffffff9a558ce8 R09: 00000000ffffdfff
[ 19.079155] R10: ffffffff9a478d00 R11: ffffffff9a52b820 R12: 0000000000000000
[ 19.079200] R13: ffff8e62430c5c00 R14: ffff8e627ed2a800 R15: 0000000000000000
[ 19.079245] FS: 0000000000000000(0000) GS:ffff8e62e3e78000(0000) knlGS:0000000000000000
[ 19.079295] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 19.079337] CR2: 0000558cde19f7f8 CR3: 0000000035442002 CR4: 0000000000772ef0
[ 19.079382] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 19.079431] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 19.079476] PKRU: 55555554
[ 19.079490] Call Trace:
[ 19.079506]
[ 19.079520] __schedule+0x92/0xb40
[ 19.079549] schedule+0x27/0xd0
[ 19.079576] synchronize_rcu_expedited+0x17c/0x2f0
[ 19.079612] ? __pfx_autoremove_wake_function+0x10/0x10
[ 19.079650] ? __pfx_wait_rcu_exp_gp+0x10/0x10
[ 19.079681] namespace_unlock+0x20e/0x2e0
[ 19.079710] put_mnt_ns+0x68/0x80
[ 19.079737] free_nsproxy+0x16/0x190
[ 19.079766] do_exit+0x267/0xae0
[ 19.079794] ? ksys_read+0x65/0xe0
[ 19.079827] make_task_dead+0x7d/0x160
[ 19.079855] rewind_stack_and_make_dead+0x16/0x20
[ 19.079891] RIP: 0033:0x7f08bad46292
[ 19.079918] Code: Unable to access opcode bytes at 0x7f08bad46268.
[ 19.079955] RSP: 002b:00007ffda3bda808 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[ 19.080006] RAX: ffffffffffffffda RBX: 0000000000018000 RCX: 00007f08bad46292
[ 19.080050] RDX: 0000000000018000 RSI: 0000558cde187000 RDI: 0000000000000005
[ 19.080095] RBP: 0000558cde187000 R08: 0000000000000003 R09: 0000000000000000
[ 19.080140] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffda3bda8e0
[ 19.080190] R13: 0000000000000005 R14: 0000000000001000 R15: 0000000000000005
[ 19.080241]
[ 19.080261] ---[ end trace 0000000000000000 ]---
[ 40.082645] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
[ 40.082798] rcu: Tasks blocked on level-0 rcu_node (CPUs 0-3): P387/1:b..l
[ 40.082845] rcu: (detected by 3, t=21002 jiffies, g=945, q=43 ncpus=4)
[ 40.082888] task:grep state:D stack:12736 pid:387 tgid:387 ppid:386 task_flags:0x40010c flags:0x00004002
[ 40.082967] Call Trace:
[ 40.082984]
[ 40.083002] __schedule+0x4e3/0xb40
[ 40.083044] schedule+0x27/0xd0
[ 40.083074] synchronize_rcu_expedited+0x17c/0x2f0
[ 40.083115] ? __pfx_autoremove_wake_function+0x10/0x10
[ 40.083159] ? __pfx_wait_rcu_exp_gp+0x10/0x10
[ 40.083199] namespace_unlock+0x20e/0x2e0
[ 40.083231] put_mnt_ns+0x68/0x80
[ 40.083271] free_nsproxy+0x16/0x190
[ 40.083303] do_exit+0x267/0xae0
[ 40.083333] ? ksys_read+0x65/0xe0
[ 40.083366] make_task_dead+0x7d/0x160
[ 40.083396] rewind_stack_and_make_dead+0x16/0x20
[ 40.083437] RIP: 0033:0x7f08bad46292
[ 40.083462] RSP: 002b:00007ffda3bda808 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[ 40.083513] RAX: ffffffffffffffda RBX: 0000000000018000 RCX: 00007f08bad46292
[ 40.083564] RDX: 0000000000018000 RSI: 0000558cde187000 RDI: 0000000000000005
[ 40.083615] RBP: 0000558cde187000 R08: 0000000000000003 R09: 0000000000000000
[ 40.083680] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffda3bda8e0
[ 40.083731] R13: 0000000000000005 R14: 0000000000001000 R15: 0000000000000005
[ 40.083788]
[ 40.505768] rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { P387 } 21428 jiffies s: 625 root: 0x0/T
[ 40.505968] rcu: blocking rcu_node structures (internal RCU debug):
[ 103.088645] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
[ 103.088769] rcu: Tasks blocked on level-0 rcu_node (CPUs 0-3): P387/1:b..l
[ 103.088813] rcu: (detected by 2, t=84008 jiffies, g=945, q=49 ncpus=4)
[ 103.088856] task:grep state:D stack:12736 pid:387 tgid:387 ppid:386 task_flags:0x40010c flags:0x00004002
[ 103.088925] Call Trace:
[ 103.088946]
[ 103.088968] __schedule+0x4e3/0xb40
[ 103.089003] schedule+0x27/0xd0
[ 103.089029] synchronize_rcu_expedited+0x17c/0x2f0
[ 103.089070] ? __pfx_autoremove_wake_function+0x10/0x10
[ 103.089121] ? __pfx_wait_rcu_exp_gp+0x10/0x10
[ 103.089165] namespace_unlock+0x20e/0x2e0
[ 103.089195] put_mnt_ns+0x68/0x80
[ 103.089222] free_nsproxy+0x16/0x190
[ 103.089250] do_exit+0x267/0xae0
[ 103.089278] ? ksys_read+0x65/0xe0
[ 103.089306] make_task_dead+0x7d/0x160
[ 103.089338] rewind_stack_and_make_dead+0x16/0x20
[ 103.089390] RIP: 0033:0x7f08bad46292
[ 103.089430] RSP: 002b:00007ffda3bda808 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[ 103.089491] RAX: ffffffffffffffda RBX: 0000000000018000 RCX: 00007f08bad46292
[ 103.089542] RDX: 0000000000018000 RSI: 0000558cde187000 RDI: 0000000000000005
[ 103.089586] RBP: 0000558cde187000 R08: 0000000000000003 R09: 0000000000000000
[ 103.089640] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffda3bda8e0
[ 103.089706] R13: 0000000000000005 R14: 0000000000001000 R15: 0000000000000005
[ 103.089765]
[ 107.577677] rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { P387 } 88500 jiffies s: 625 root: 0x0/T
[ 107.577832] rcu: blocking rcu_node structures (internal RCU debug):
[ 166.093645] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
[ 166.093755] rcu: Tasks blocked on level-0 rcu_node (CPUs 0-3): P387/1:b..l
[ 166.093810] rcu: (detected by 2, t=147013 jiffies, g=945, q=55 ncpus=4)
[ 166.093853] task:grep state:D stack:12736 pid:387 tgid:387 ppid:386 task_flags:0x40010c flags:0x00004002
[ 166.093924] Call Trace:
[ 166.093947]
[ 166.093970] __schedule+0x4e3/0xb40
[ 166.094011] schedule+0x27/0xd0
[ 166.094049] synchronize_rcu_expedited+0x17c/0x2f0
[ 166.094102] ? __pfx_autoremove_wake_function+0x10/0x10
[ 166.094137] ? __pfx_wait_rcu_exp_gp+0x10/0x10
[ 166.094173] namespace_unlock+0x20e/0x2e0
[ 166.094201] put_mnt_ns+0x68/0x80
[ 166.094229] free_nsproxy+0x16/0x190
[ 166.094267] do_exit+0x267/0xae0
[ 166.094307] ? ksys_read+0x65/0xe0
[ 166.094347] make_task_dead+0x7d/0x160
[ 166.094380] rewind_stack_and_make_dead+0x16/0x20
[ 166.094432] RIP: 0033:0x7f08bad46292
[ 166.094461] RSP: 002b:00007ffda3bda808 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[ 166.094526] RAX: ffffffffffffffda RBX: 0000000000018000 RCX: 00007f08bad46292
[ 166.094593] RDX: 0000000000018000 RSI: 0000558cde187000 RDI: 0000000000000005
[ 166.094659] RBP: 0000558cde187000 R08: 0000000000000003 R09: 0000000000000000
[ 166.094726] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffda3bda8e0
[ 166.094792] R13: 0000000000000005 R14: 0000000000001000 R15: 0000000000000005
[ 166.094859]
[ 173.113740] rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { P387 } 154036 jiffies s: 625 root: 0x0/T
[ 173.113934] rcu: blocking rcu_node structures (internal RCU debug):
[ 229.098645] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
[ 229.098802] rcu: Tasks blocked on level-0 rcu_node (CPUs 0-3): P387/1:b..l
[ 229.098845] rcu: (detected by 2, t=210018 jiffies, g=945, q=55 ncpus=4)
[ 229.098889] task:grep state:D stack:12736 pid:387 tgid:387 ppid:386 task_flags:0x40010c flags:0x00004002
[ 229.098961] Call Trace:
[ 229.098981]
[ 229.099003] __schedule+0x4e3/0xb40
[ 229.099037] schedule+0x27/0xd0
[ 229.099063] synchronize_rcu_expedited+0x17c/0x2f0
[ 229.099099] ? __pfx_autoremove_wake_function+0x10/0x10
[ 229.099142] ? __pfx_wait_rcu_exp_gp+0x10/0x10
[ 229.099178] namespace_unlock+0x20e/0x2e0
[ 229.099206] put_mnt_ns+0x68/0x80
[ 229.099234] free_nsproxy+0x16/0x190
[ 229.099262] do_exit+0x267/0xae0
[ 229.099290] ? ksys_read+0x65/0xe0
[ 229.099318] make_task_dead+0x7d/0x160
[ 229.099346] rewind_stack_and_make_dead+0x16/0x20
[ 229.099382] RIP: 0033:0x7f08bad46292
[ 229.099409] RSP: 002b:00007ffda3bda808 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[ 229.099460] RAX: ffffffffffffffda RBX: 0000000000018000 RCX: 00007f08bad46292
[ 229.099510] RDX: 0000000000018000 RSI: 0000558cde187000 RDI: 0000000000000005
[ 229.099560] RBP: 0000558cde187000 R08: 0000000000000003 R09: 0000000000000000
[ 229.099605] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffda3bda8e0
[ 229.099649] R13: 0000000000000005 R14: 0000000000001000 R15: 0000000000000005
[ 229.099701]
[ 238.649732] rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { P387 } 219572 jiffies s: 625 root: 0x0/T
[ 238.649859] rcu: blocking rcu_node structures (internal RCU debug):
[ 292.103644] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
[ 292.103792] rcu: Tasks blocked on level-0 rcu_node (CPUs 0-3): P387/1:b..l
[ 292.103836] rcu: (detected by 2, t=273023 jiffies, g=945, q=62 ncpus=4)
[ 292.103879] task:grep state:D stack:12736 pid:387 tgid:387 ppid:386 task_flags:0x40010c flags:0x00004002
[ 292.103951] Call Trace:
[ 292.103972]
[ 292.103993] __schedule+0x4e3/0xb40
[ 292.104027] schedule+0x27/0xd0
[ 292.104054] synchronize_rcu_expedited+0x17c/0x2f0
[ 292.104089] ? __pfx_autoremove_wake_function+0x10/0x10
[ 292.104132] ? __pfx_wait_rcu_exp_gp+0x10/0x10
[ 292.104168] namespace_unlock+0x20e/0x2e0
[ 292.104197] put_mnt_ns+0x68/0x80
[ 292.104224] free_nsproxy+0x16/0x190
[ 292.104253] do_exit+0x267/0xae0
[ 292.104284] ? ksys_read+0x65/0xe0
[ 292.104312] make_task_dead+0x7d/0x160
[ 292.104340] rewind_stack_and_make_dead+0x16/0x20
[ 292.104376] RIP: 0033:0x7f08bad46292
[ 292.104403] RSP: 002b:00007ffda3bda808 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[ 292.104453] RAX: ffffffffffffffda RBX: 0000000000018000 RCX: 00007f08bad46292
[ 292.104503] RDX: 0000000000018000 RSI: 0000558cde187000 RDI: 0000000000000005
[ 292.104548] RBP: 0000558cde187000 R08: 0000000000000003 R09: 0000000000000000
[ 292.104598] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffda3bda8e0
[ 292.104662] R13: 0000000000000005 R14: 0000000000001000 R15: 0000000000000005
[ 292.104707]
[ 304.185733] rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { P387 } 285108 jiffies s: 625 root: 0x0/T
[ 304.185848] rcu: blocking rcu_node structures (internal RCU debug):
[ 355.108644] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
[ 355.108799] rcu: Tasks blocked on level-0 rcu_node (CPUs 0-3): P387/1:b..l
[ 355.108847] rcu: (detected by 1, t=336028 jiffies, g=945, q=69 ncpus=4)
[ 355.108890] task:grep state:D stack:12736 pid:387 tgid:387 ppid:386 task_flags:0x40010c flags:0x00004002
[ 355.108970] Call Trace:
[ 355.108987]
[ 355.109005] __schedule+0x4e3/0xb40
[ 355.109042] schedule+0x27/0xd0
[ 355.109074] synchronize_rcu_expedited+0x17c/0x2f0
[ 355.109114] ? __pfx_autoremove_wake_function+0x10/0x10
[ 355.109153] ? __pfx_wait_rcu_exp_gp+0x10/0x10
[ 355.109187] namespace_unlock+0x20e/0x2e0
[ 355.109219] put_mnt_ns+0x68/0x80
[ 355.109250] free_nsproxy+0x16/0x190
[ 355.109281] do_exit+0x267/0xae0
[ 355.109313] ? ksys_read+0x65/0xe0
[ 355.109344] make_task_dead+0x7d/0x160
[ 355.109369] rewind_stack_and_make_dead+0x16/0x20
[ 355.109410] RIP: 0033:0x7f08bad46292
[ 355.109440] RSP: 002b:00007ffda3bda808 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[ 355.109491] RAX: ffffffffffffffda RBX: 0000000000018000 RCX: 00007f08bad46292
[ 355.109542] RDX: 0000000000018000 RSI: 0000558cde187000 RDI: 0000000000000005
[ 355.109593] RBP: 0000558cde187000 R08: 0000000000000003 R09: 0000000000000000
[ 355.109644] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffda3bda8e0
[ 355.109694] R13: 0000000000000005 R14: 0000000000001000 R15: 0000000000000005
[ 355.109746]
[ 369.721684] rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { P387 } 350644 jiffies s: 625 root: 0x0/T
[ 369.721838] rcu: blocking rcu_node structures (internal RCU debug):
[ 418.114645] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
[ 418.114801] rcu: Tasks blocked on level-0 rcu_node (CPUs 0-3): P387/1:b..l
[ 418.114849] rcu: (detected by 3, t=399034 jiffies, g=945, q=69 ncpus=4)
[ 418.114892] task:grep state:D stack:12736 pid:387 tgid:387 ppid:386 task_flags:0x40010c flags:0x00004002
[ 418.114972] Call Trace:
[ 418.114995]
[ 418.115013] __schedule+0x4e3/0xb40
[ 418.115049] schedule+0x27/0xd0
[ 418.115079] synchronize_rcu_expedited+0x17c/0x2f0
[ 418.115119] ? __pfx_autoremove_wake_function+0x10/0x10
[ 418.115159] ? __pfx_wait_rcu_exp_gp+0x10/0x10
[ 418.115193] namespace_unlock+0x20e/0x2e0
[ 418.115230] put_mnt_ns+0x68/0x80
[ 418.115262] free_nsproxy+0x16/0x190
[ 418.115293] do_exit+0x267/0xae0
[ 418.115324] ? ksys_read+0x65/0xe0
[ 418.115355] make_task_dead+0x7d/0x160
[ 418.115381] rewind_stack_and_make_dead+0x16/0x20
[ 418.115421] RIP: 0033:0x7f08bad46292
[ 418.115447] RSP: 002b:00007ffda3bda808 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[ 418.115498] RAX: ffffffffffffffda RBX: 0000000000018000 RCX: 00007f08bad46292
[ 418.115549] RDX: 0000000000018000 RSI: 0000558cde187000 RDI: 0000000000000005
[ 418.115601] RBP: 0000558cde187000 R08: 0000000000000003 R09: 0000000000000000
[ 418.115652] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffda3bda8e0
[ 418.115703] R13: 0000000000000005 R14: 0000000000001000 R15: 0000000000000005
[ 418.115755]
[ 435.257740] rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { P387 } 416180 jiffies s: 625 root: 0x0/T
[ 435.257947] rcu: blocking rcu_node structures (internal RCU debug):
[ 481.120645] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
[ 481.120798] rcu: Tasks blocked on level-0 rcu_node (CPUs 0-3): P387/1:b..l
[ 481.120841] rcu: (detected by 2, t=462040 jiffies, g=945, q=71 ncpus=4)
[ 481.120884] task:grep state:D stack:12736 pid:387 tgid:387 ppid:386 task_flags:0x40010c flags:0x00004002
[ 481.120970] Call Trace:
[ 481.120991]
[ 481.121013] __schedule+0x4e3/0xb40
[ 481.121049] schedule+0x27/0xd0
[ 481.121075] synchronize_rcu_expedited+0x17c/0x2f0
[ 481.121111] ? __pfx_autoremove_wake_function+0x10/0x10
[ 481.121150] ? __pfx_wait_rcu_exp_gp+0x10/0x10
[ 481.121185] namespace_unlock+0x20e/0x2e0
[ 481.121214] put_mnt_ns+0x68/0x80
[ 481.121241] free_nsproxy+0x16/0x190
[ 481.121270] do_exit+0x267/0xae0
[ 481.121298] ? ksys_read+0x65/0xe0
[ 481.121329] make_task_dead+0x7d/0x160
[ 481.121357] rewind_stack_and_make_dead+0x16/0x20
[ 481.121393] RIP: 0033:0x7f08bad46292
[ 481.121420] RSP: 002b:00007ffda3bda808 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[ 481.121471] RAX: ffffffffffffffda RBX: 0000000000018000 RCX: 00007f08bad46292
[ 481.121521] RDX: 0000000000018000 RSI: 0000558cde187000 RDI: 0000000000000005
[ 481.121565] RBP: 0000558cde187000 R08: 0000000000000003 R09: 0000000000000000
[ 481.121610] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffda3bda8e0
[ 481.121654] R13: 0000000000000005 R14: 0000000000001000 R15: 0000000000000005
[ 481.121700]
[ 500.793680] rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { P387 } 481716 jiffies s: 625 root: 0x0/T
[ 500.793862] rcu: blocking rcu_node structures (internal RCU debug):
[ 544.125644] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
[ 544.125830] rcu: Tasks blocked on level-0 rcu_node (CPUs 0-3): P387/1:b..l
[ 544.125877] rcu: (detected by 3, t=525045 jiffies, g=945, q=73 ncpus=4)
[ 544.125921] task:grep state:D stack:12736 pid:387 tgid:387 ppid:386 task_flags:0x40010c flags:0x00004002
[ 544.126002] Call Trace:
[ 544.126024]
[ 544.126042] __schedule+0x4e3/0xb40
[ 544.126077] schedule+0x27/0xd0
[ 544.126108] synchronize_rcu_expedited+0x17c/0x2f0
[ 544.126148] ? __pfx_autoremove_wake_function+0x10/0x10
[ 544.126188] ? __pfx_wait_rcu_exp_gp+0x10/0x10
[ 544.126222] namespace_unlock+0x20e/0x2e0
[ 544.126253] put_mnt_ns+0x68/0x80
[ 544.126285] free_nsproxy+0x16/0x190
[ 544.126315] do_exit+0x267/0xae0
[ 544.126347] ? ksys_read+0x65/0xe0
[ 544.126378] make_task_dead+0x7d/0x160
[ 544.126404] rewind_stack_and_make_dead+0x16/0x20
[ 544.126445] RIP: 0033:0x7f08bad46292
[ 544.126476] RSP: 002b:00007ffda3bda808 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[ 544.126533] RAX: ffffffffffffffda RBX: 0000000000018000 RCX: 00007f08bad46292
[ 544.126584] RDX: 0000000000018000 RSI: 0000558cde187000 RDI: 0000000000000005
[ 544.126635] RBP: 0000558cde187000 R08: 0000000000000003 R09: 0000000000000000
[ 544.126685] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffda3bda8e0
[ 544.126736] R13: 0000000000000005 R14: 0000000000001000 R15: 0000000000000005
[ 544.126788]
[ 566.329742] rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { P387 } 547252 jiffies s: 625 root: 0x0/T
[ 566.329948] rcu: blocking rcu_node structures (internal RCU debug):
[ 607.131646] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
[ 607.131794] rcu: Tasks blocked on level-0 rcu_node (CPUs 0-3): P387/1:b..l
[ 607.131837] rcu: (detected by 2, t=588051 jiffies, g=945, q=74 ncpus=4)
[ 607.131881] task:grep state:D stack:12736 pid:387 tgid:387 ppid:386 task_flags:0x40010c flags:0x00004002
[ 607.131953] Call Trace:
[ 607.131974]
[ 607.131996] __schedule+0x4e3/0xb40
[ 607.132034] schedule+0x27/0xd0
[ 607.132060] synchronize_rcu_expedited+0x17c/0x2f0
[ 607.132097] ? __pfx_autoremove_wake_function+0x10/0x10
[ 607.132132] ? __pfx_wait_rcu_exp_gp+0x10/0x10
[ 607.132168] namespace_unlock+0x20e/0x2e0
[ 607.132197] put_mnt_ns+0x68/0x80
[ 607.132225] free_nsproxy+0x16/0x190
[ 607.132260] do_exit+0x267/0xae0
[ 607.132288] ? ksys_read+0x65/0xe0
[ 607.132316] make_task_dead+0x7d/0x160
[ 607.132345] rewind_stack_and_make_dead+0x16/0x20
[ 607.132381] RIP: 0033:0x7f08bad46292
[ 607.132409] RSP: 002b:00007ffda3bda808 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[ 607.132459] RAX: ffffffffffffffda RBX: 0000000000018000 RCX: 00007f08bad46292
[ 607.132509] RDX: 0000000000018000 RSI: 0000558cde187000 RDI: 0000000000000005
[ 607.132554] RBP: 0000558cde187000 R08: 0000000000000003 R09: 0000000000000000
[ 607.132605] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffda3bda8e0
[ 607.132655] R13: 0000000000000005 R14: 0000000000001000 R15: 0000000000000005
[ 607.132701]
[ 631.865739] rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { P387 } 612788 jiffies s: 625 root: 0x0/T
[ 631.865951] rcu: blocking rcu_node structures (internal RCU debug):
[ 670.136645] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
[ 670.136804] rcu: Tasks blocked on level-0 rcu_node (CPUs 0-3): P387/1:b..l
[ 670.136847] rcu: (detected by 2, t=651056 jiffies, g=945, q=75 ncpus=4)
[ 670.136891] task:grep state:D stack:12736 pid:387 tgid:387 ppid:386 task_flags:0x40010c flags:0x00004002
[ 670.136963] Call Trace:
[ 670.136990]
[ 670.137012] __schedule+0x4e3/0xb40
[ 670.137049] schedule+0x27/0xd0
[ 670.137075] synchronize_rcu_expedited+0x17c/0x2f0
[ 670.137111] ? __pfx_autoremove_wake_function+0x10/0x10
[ 670.137150] ? __pfx_wait_rcu_exp_gp+0x10/0x10
[ 670.137185] namespace_unlock+0x20e/0x2e0
[ 670.137214] put_mnt_ns+0x68/0x80
[ 670.137242] free_nsproxy+0x16/0x190
[ 670.137270] do_exit+0x267/0xae0
[ 670.137298] ? ksys_read+0x65/0xe0
[ 670.137329] make_task_dead+0x7d/0x160
[ 670.137357] rewind_stack_and_make_dead+0x16/0x20
[ 670.137392] RIP: 0033:0x7f08bad46292
[ 670.137420] RSP: 002b:00007ffda3bda808 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[ 670.137470] RAX: ffffffffffffffda RBX: 0000000000018000 RCX: 00007f08bad46292
[ 670.137520] RDX: 0000000000018000 RSI: 0000558cde187000 RDI: 0000000000000005
[ 670.137565] RBP: 0000558cde187000 R08: 0000000000000003 R09: 0000000000000000
[ 670.137609] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffda3bda8e0
[ 670.137654] R13: 0000000000000005 R14: 0000000000001000 R15: 0000000000000005
[ 670.137699]
[ 697.401742] rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { P387 } 678324 jiffies s: 625 root: 0x0/T
[ 697.401870] rcu: blocking rcu_node structures (internal RCU debug):
[ 733.141645] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
[ 733.141743] rcu: Tasks blocked on level-0 rcu_node (CPUs 0-3): P387/1:b..l
[ 733.141792] rcu: (detected by 1, t=714061 jiffies, g=945, q=75 ncpus=4)
[ 733.141835] task:grep state:D stack:12736 pid:387 tgid:387 ppid:386 task_flags:0x40010c flags:0x00004002
[ 733.141914] Call Trace:
[ 733.141931]
[ 733.141950] __schedule+0x4e3/0xb40
[ 733.141985] schedule+0x27/0xd0
[ 733.142016] synchronize_rcu_expedited+0x17c/0x2f0
[ 733.142067] ? __pfx_autoremove_wake_function+0x10/0x10
[ 733.142108] ? __pfx_wait_rcu_exp_gp+0x10/0x10
[ 733.142153] namespace_unlock+0x20e/0x2e0
[ 733.142186] put_mnt_ns+0x68/0x80
[ 733.142217] free_nsproxy+0x16/0x190
[ 733.142243] do_exit+0x267/0xae0
[ 733.142275] ? ksys_read+0x65/0xe0
[ 733.142306] make_task_dead+0x7d/0x160
[ 733.142332] rewind_stack_and_make_dead+0x16/0x20
[ 733.142379] RIP: 0033:0x7f08bad46292
[ 733.142410] RSP: 002b:00007ffda3bda808 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[ 733.142462] RAX: ffffffffffffffda RBX: 0000000000018000 RCX: 00007f08bad46292
[ 733.142514] RDX: 0000000000018000 RSI: 0000558cde187000 RDI: 0000000000000005
[ 733.142565] RBP: 0000558cde187000 R08: 0000000000000003 R09: 0000000000000000
[ 733.142617] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffda3bda8e0
[ 733.142667] R13: 0000000000000005 R14: 0000000000001000 R15: 0000000000000005
[ 733.142721]
[ 762.937746] rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { P387 } 743860 jiffies s: 625 root: 0x0/T
[ 762.937930] rcu: blocking rcu_node structures (internal RCU debug):
[ 796.147650] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
[ 796.147825] rcu: Tasks blocked on level-0 rcu_node (CPUs 0-3): P387/1:b..l
[ 796.147874] rcu: (detected by 2, t=777067 jiffies, g=945, q=75 ncpus=4)
[ 796.147917] task:grep state:D stack:12736 pid:387 tgid:387 ppid:386 task_flags:0x40010c flags:0x00004002
[ 796.147987] Call Trace:
[ 796.148008]
[ 796.148031] __schedule+0x4e3/0xb40
[ 796.148068] schedule+0x27/0xd0
[ 796.148098] synchronize_rcu_expedited+0x17c/0x2f0
[ 796.148140] ? __pfx_autoremove_wake_function+0x10/0x10
[ 796.148182] ? __pfx_wait_rcu_exp_gp+0x10/0x10
[ 796.148217] namespace_unlock+0x20e/0x2e0
[ 796.148246] put_mnt_ns+0x68/0x80
[ 796.148274] free_nsproxy+0x16/0x190
[ 796.148302] do_exit+0x267/0xae0
[ 796.148337] ? ksys_read+0x65/0xe0
[ 796.148369] make_task_dead+0x7d/0x160
[ 796.148401] rewind_stack_and_make_dead+0x16/0x20
[ 796.148440] RIP: 0033:0x7f08bad46292
[ 796.148468] RSP: 002b:00007ffda3bda808 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[ 796.148518] RAX: ffffffffffffffda RBX: 0000000000018000 RCX: 00007f08bad46292
[ 796.148569] RDX: 0000000000018000 RSI: 0000558cde187000 RDI: 0000000000000005
[ 796.148619] RBP: 0000558cde187000 R08: 0000000000000003 R09: 0000000000000000
[ 796.148670] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffda3bda8e0
[ 796.148720] R13: 0000000000000005 R14: 0000000000001000 R15: 0000000000000005
[ 796.148766]
[ 828.473762] rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { P387 } 809396 jiffies s: 625 root: 0x0/T
[ 828.473880] rcu: blocking rcu_node structures (internal RCU debug):
[ 859.152644] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
[ 859.152747] rcu: Tasks blocked on level-0 rcu_node (CPUs 0-3): P387/1:b..l
[ 859.152806] rcu: (detected by 2, t=840072 jiffies, g=945, q=76 ncpus=4)
[ 859.152859] task:grep state:D stack:12736 pid:387 tgid:387 ppid:386 task_flags:0x40010c flags:0x00004002
[ 859.152954] Call Trace:
[ 859.152983]
[ 859.153011] __schedule+0x4e3/0xb40
[ 859.153053] schedule+0x27/0xd0
[ 859.153090] synchronize_rcu_expedited+0x17c/0x2f0
[ 859.153139] ? __pfx_autoremove_wake_function+0x10/0x10
[ 859.153187] ? __pfx_wait_rcu_exp_gp+0x10/0x10
[ 859.153227] namespace_unlock+0x20e/0x2e0
[ 859.153266] put_mnt_ns+0x68/0x80
[ 859.153304] free_nsproxy+0x16/0x190
[ 859.153342] do_exit+0x267/0xae0
[ 859.153379] ? ksys_read+0x65/0xe0
[ 859.153417] make_task_dead+0x7d/0x160
[ 859.153455] rewind_stack_and_make_dead+0x16/0x20
[ 859.153503] RIP: 0033:0x7f08bad46292
[ 859.153540] RSP: 002b:00007ffda3bda808 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[ 859.153609] RAX: ffffffffffffffda RBX: 0000000000018000 RCX: 00007f08bad46292
[ 859.153679] RDX: 0000000000018000 RSI: 0000558cde187000 RDI: 0000000000000005
[ 859.153741] RBP: 0000558cde187000 R08: 0000000000000003 R09: 0000000000000000
[ 859.153802] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffda3bda8e0
[ 859.153865] R13: 0000000000000005 R14: 0000000000001000 R15: 0000000000000005
[ 859.153928]
[ 894.009677] rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { P387 } 874932 jiffies s: 625 root: 0x0/T
[ 894.009856] rcu: blocking rcu_node structures (internal RCU debug):
[ 922.157645] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
[ 922.157764] rcu: Tasks blocked on level-0 rcu_node (CPUs 0-3): P387/1:b..l
[ 922.157830] rcu: (detected by 2, t=903077 jiffies, g=945, q=76 ncpus=4)
[ 922.157885] task:grep state:D stack:12736 pid:387 tgid:387 ppid:386 task_flags:0x40010c flags:0x00004002
[ 922.157981] Call Trace:
[ 922.158003]
[ 922.158025] __schedule+0x4e3/0xb40
[ 922.158071] schedule+0x27/0xd0
[ 922.158109] synchronize_rcu_expedited+0x17c/0x2f0
[ 922.158159] ? __pfx_autoremove_wake_function+0x10/0x10
[ 922.158208] ? __pfx_wait_rcu_exp_gp+0x10/0x10
[ 922.158250] namespace_unlock+0x20e/0x2e0
[ 922.158290] put_mnt_ns+0x68/0x80
[ 922.158330] free_nsproxy+0x16/0x190
[ 922.158363] do_exit+0x267/0xae0
[ 922.158402] ? ksys_read+0x65/0xe0
[ 922.158442] make_task_dead+0x7d/0x160
[ 922.158482] rewind_stack_and_make_dead+0x16/0x20
[ 922.158534] RIP: 0033:0x7f08bad46292
[ 922.158573] RSP: 002b:00007ffda3bda808 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[ 922.158637] RAX: ffffffffffffffda RBX: 0000000000018000 RCX: 00007f08bad46292
[ 922.158704] RDX: 0000000000018000 RSI: 0000558cde187000 RDI: 0000000000000005
[ 922.158768] RBP: 0000558cde187000 R08: 0000000000000003 R09: 0000000000000000
[ 922.158832] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffda3bda8e0
[ 922.158899] R13: 0000000000000005 R14: 0000000000001000 R15: 0000000000000005
[ 922.158966]
[ 959.545681] rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { P387 } 940468 jiffies s: 625 root: 0x0/T
[ 959.545834] rcu: blocking rcu_node structures (internal RCU debug):
[ 985.162645] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
[ 985.162797] rcu: Tasks blocked on level-0 rcu_node (CPUs 0-3): P387/1:b..l
[ 985.162841] rcu: (detected by 2, t=966082 jiffies, g=945, q=78 ncpus=4)
[ 985.162885] task:grep state:D stack:12736 pid:387 tgid:387 ppid:386 task_flags:0x40010c flags:0x00004002
[ 985.162958] Call Trace:
[ 985.162979]
[ 985.163001] __schedule+0x4e3/0xb40
[ 985.163035] schedule+0x27/0xd0
[ 985.163062] synchronize_rcu_expedited+0x17c/0x2f0
[ 985.163099] ? __pfx_autoremove_wake_function+0x10/0x10
[ 985.163148] ? __pfx_wait_rcu_exp_gp+0x10/0x10
[ 985.163184] namespace_unlock+0x20e/0x2e0
[ 985.163213] put_mnt_ns+0x68/0x80
[ 985.163250] free_nsproxy+0x16/0x190
[ 985.163279] do_exit+0x267/0xae0
[ 985.163307] ? ksys_read+0x65/0xe0
[ 985.163335] make_task_dead+0x7d/0x160
[ 985.163364] rewind_stack_and_make_dead+0x16/0x20
[ 985.163404] RIP: 0033:0x7f08bad46292
[ 985.163431] RSP: 002b:00007ffda3bda808 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[ 985.163482] RAX: ffffffffffffffda RBX: 0000000000018000 RCX: 00007f08bad46292
[ 985.163533] RDX: 0000000000018000 RSI: 0000558cde187000 RDI: 0000000000000005
[ 985.163578] RBP: 0000558cde187000 R08: 0000000000000003 R09: 0000000000000000
[ 985.163623] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffda3bda8e0
[ 985.163668] R13: 0000000000000005 R14: 0000000000001000 R15: 0000000000000005
[ 985.163715]
[ 1025.081739] rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { P387 } 1006004 jiffies s: 625 root: 0x0/T
[ 1025.081924] rcu: blocking rcu_node structures (internal RCU debug):
[ 1048.167644] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
[ 1048.167796] rcu: Tasks blocked on level-0 rcu_node (CPUs 0-3): P387/1:b..l
[ 1048.167845] rcu: (detected by 1, t=1029087 jiffies, g=945, q=80 ncpus=4)
[ 1048.167889] task:grep state:D stack:12736 pid:387 tgid:387 ppid:386 task_flags:0x40010c flags:0x00004002
[ 1048.167974] Call Trace:
[ 1048.167991]
[ 1048.168009] __schedule+0x4e3/0xb40
[ 1048.168046] schedule+0x27/0xd0
[ 1048.168077] synchronize_rcu_expedited+0x17c/0x2f0
[ 1048.168118] ? __pfx_autoremove_wake_function+0x10/0x10
[ 1048.168158] ? __pfx_wait_rcu_exp_gp+0x10/0x10
[ 1048.168198] namespace_unlock+0x20e/0x2e0
[ 1048.168230] put_mnt_ns+0x68/0x80
[ 1048.168263] free_nsproxy+0x16/0x190
[ 1048.168294] do_exit+0x267/0xae0
[ 1048.168326] ? ksys_read+0x65/0xe0
[ 1048.168357] make_task_dead+0x7d/0x160
[ 1048.168383] rewind_stack_and_make_dead+0x16/0x20
[ 1048.168424] RIP: 0033:0x7f08bad46292
[ 1048.168455] RSP: 002b:00007ffda3bda808 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[ 1048.168507] RAX: ffffffffffffffda RBX: 0000000000018000 RCX: 00007f08bad46292
[ 1048.168558] RDX: 0000000000018000 RSI: 0000558cde187000 RDI: 0000000000000005
[ 1048.168608] RBP: 0000558cde187000 R08: 0000000000000003 R09: 0000000000000000
[ 1048.168659] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffda3bda8e0
[ 1048.168721] R13: 0000000000000005 R14: 0000000000001000 R15: 0000000000000005
[ 1048.168777]
[ 1090.617733] rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { P387 } 1071540 jiffies s: 625 root: 0x0/T
[ 1090.617917] rcu: blocking rcu_node structures (internal RCU debug):
[ 1111.173645] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
[ 1111.173799] rcu: Tasks blocked on level-0 rcu_node (CPUs 0-3): P387/1:b..l
[ 1111.173853] rcu: (detected by 3, t=1092093 jiffies, g=945, q=81 ncpus=4)
[ 1111.173896] task:grep state:D stack:12736 pid:387 tgid:387 ppid:386 task_flags:0x40010c flags:0x00004002
[ 1111.173975] Call Trace:
[ 1111.173993]
[ 1111.174011] __schedule+0x4e3/0xb40
[ 1111.174053] schedule+0x27/0xd0
[ 1111.174085] synchronize_rcu_expedited+0x17c/0x2f0
[ 1111.174126] ? __pfx_autoremove_wake_function+0x10/0x10
[ 1111.174165] ? __pfx_wait_rcu_exp_gp+0x10/0x10
[ 1111.174205] namespace_unlock+0x20e/0x2e0
[ 1111.174236] put_mnt_ns+0x68/0x80
[ 1111.174268] free_nsproxy+0x16/0x190
[ 1111.174299] do_exit+0x267/0xae0
[ 1111.174332] ? ksys_read+0x65/0xe0
[ 1111.174362] make_task_dead+0x7d/0x160
[ 1111.174388] rewind_stack_and_make_dead+0x16/0x20
[ 1111.174429] RIP: 0033:0x7f08bad46292
[ 1111.174461] RSP: 002b:00007ffda3bda808 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[ 1111.174518] RAX: ffffffffffffffda RBX: 0000000000018000 RCX: 00007f08bad46292
[ 1111.174569] RDX: 0000000000018000 RSI: 0000558cde187000 RDI: 0000000000000005
[ 1111.174621] RBP: 0000558cde187000 R08: 0000000000000003 R09: 0000000000000000
[ 1111.174678] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffda3bda8e0
[ 1111.174730] R13: 0000000000000005 R14: 0000000000001000 R15: 0000000000000005
[ 1111.174782]
[ 1156.153680] rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { P387 } 1137076 jiffies s: 625 root: 0x0/T
[ 1156.153889] rcu: blocking rcu_node structures (internal RCU debug):
[ 1174.179645] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
[ 1174.179800] rcu: Tasks blocked on level-0 rcu_node (CPUs 0-3): P387/1:b..l
[ 1174.179843] rcu: (detected by 2, t=1155099 jiffies, g=945, q=81 ncpus=4)
[ 1174.179887] task:grep state:D stack:12736 pid:387 tgid:387 ppid:386 task_flags:0x40010c flags:0x00004002
[ 1174.179959] Call Trace:
[ 1174.179979]
[ 1174.180001] __schedule+0x4e3/0xb40
[ 1174.180036] schedule+0x27/0xd0
[ 1174.180062] synchronize_rcu_expedited+0x17c/0x2f0
[ 1174.180115] ? __pfx_autoremove_wake_function+0x10/0x10
[ 1174.180153] ? __pfx_wait_rcu_exp_gp+0x10/0x10
[ 1174.180188] namespace_unlock+0x20e/0x2e0
[ 1174.180217] put_mnt_ns+0x68/0x80
[ 1174.180245] free_nsproxy+0x16/0x190
[ 1174.180273] do_exit+0x267/0xae0
[ 1174.180301] ? ksys_read+0x65/0xe0
[ 1174.180329] make_task_dead+0x7d/0x160
[ 1174.180357] rewind_stack_and_make_dead+0x16/0x20
[ 1174.180393] RIP: 0033:0x7f08bad46292
[ 1174.180421] RSP: 002b:00007ffda3bda808 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[ 1174.180471] RAX: ffffffffffffffda RBX: 0000000000018000 RCX: 00007f08bad46292
[ 1174.180521] RDX: 0000000000018000 RSI: 0000558cde187000 RDI: 0000000000000005
[ 1174.180566] RBP: 0000558cde187000 R08: 0000000000000003 R09: 0000000000000000
[ 1174.180611] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffda3bda8e0
[ 1174.180656] R13: 0000000000000005 R14: 0000000000001000 R15: 0000000000000005
[ 1174.180701]