crash> ps | grep ">"
>     0      0   0  ffffffff95c18480  RU   0.0       0      0  [swapper/0]
>     0      0   2  ffff904829f40000  RU   0.0       0      0  [swapper/2]
>     0      0   3  ffff905829438000  RU   0.0       0      0  [swapper/3]
>     0      0   4  ffff9028a9bbe180  RU   0.0       0      0  [swapper/4]
>     0      0   5  ffff903829e8a080  RU   0.0       0      0  [swapper/5]
>     0      0   6  ffff904829f46180  RU   0.0       0      0  [swapper/6]
>     0      0   7  ffff90582943e180  RU   0.0       0      0  [swapper/7]
>     0      0  10  ffff904829f41040  RU   0.0       0      0  [swapper/10]
>     0      0  12  ffff9028a9bbd140  RU   0.0       0      0  [swapper/12]
>     0      0  13  ffff903829e8b0c0  RU   0.0       0      0  [swapper/13]
>     0      0  14  ffff904829f45140  RU   0.0       0      0  [swapper/14]
>     0      0  15  ffff90582943d140  RU   0.0       0      0  [swapper/15]
>     0      0  16  ffff9028a9bbc100  RU   0.0       0      0  [swapper/16]
>     0      0  17  ffff903829e8c100  RU   0.0       0      0  [swapper/17]
>     0      0  18  ffff904829f42080  RU   0.0       0      0  [swapper/18]
>     0      0  19  ffff90582943a080  RU   0.0       0      0  [swapper/19]
>     0      0  20  ffff9028a9bf0000  RU   0.0       0      0  [swapper/20]
>     0      0  21  ffff903829f10000  RU   0.0       0      0  [swapper/21]
>     0      0  22  ffff904829f44100  RU   0.0       0      0  [swapper/22]
>     0      0  23  ffff90582943c100  RU   0.0       0      0  [swapper/23]
>     0      0  24  ffff9028a9bf6180  RU   0.0       0      0  [swapper/24]
>     0      0  25  ffff903829f16180  RU   0.0       0      0  [swapper/25]
>     0      0  26  ffff904829f430c0  RU   0.0       0      0  [swapper/26]
>     0      0  27  ffff90582943b0c0  RU   0.0       0      0  [swapper/27]
>     0      0  28  ffff9028a9bf1040  RU   0.0       0      0  [swapper/28]
>     0      0  29  ffff903829f11040  RU   0.0       0      0  [swapper/29]
>     0      0  30  ffff904829f70000  RU   0.0       0      0  [swapper/30]
>     0      0  31  ffff905829458000  RU   0.0       0      0  [swapper/31]
>     0      0  34  ffff904829f76180  RU   0.0       0      0  [swapper/34]
>     0      0  35  ffff90582945e180  RU   0.0       0      0  [swapper/35]
>     0      0  36  ffff9028a9bf2080  RU   0.0       0      0  [swapper/36]
>     0      0  37  ffff903829f12080  RU   0.0       0      0  [swapper/37]
>     0      0  38  ffff904829f71040  RU   0.0       0      0  [swapper/38]
>     0      0  39  ffff905829459040  RU   0.0       0      0  [swapper/39]
>     0      0  40  ffff9028a9bf4100  RU   0.0       0      0  [swapper/40]
>     0      0  41  ffff903829f14100  RU   0.0       0      0  [swapper/41]
>     0      0  42  ffff904829f75140  RU   0.0       0      0  [swapper/42]
>     0      0  43  ffff90582945d140  RU   0.0       0      0  [swapper/43]
>     0      0  45  ffff903829f130c0  RU   0.0       0      0  [swapper/45]
>     0      0  46  ffff904829f72080  RU   0.0       0      0  [swapper/46]
>     0      0  47  ffff90582945a080  RU   0.0       0      0  [swapper/47]
> 19481      2  32  ffff903772676180  RU   0.0       0      0  [kiblnd_sd_00_03]
> 19483      2   9  ffff903772670000  RU   0.0       0      0  [kiblnd_sd_01_01]
> 19484      2  33  ffff903772671040  RU   0.0       0      0  [kiblnd_sd_01_02]
> 20743      2   8  ffff9037724ae180  RU   0.0       0      0  [mdt00_009]
> 21344      2  44  ffff903705aca080  RU   0.0       0      0  [mdt00_024]
> 21612      2   1  ffff905758aca080  RU   0.0       0      0  [mdt_rdpg01_025]
> 49210      2  11  ffff90477af56180  RU   0.0       0      0  [mdt03_089]
crash> bt 19481
PID: 19481  TASK: ffff903772676180  CPU: 32  COMMAND: "kiblnd_sd_00_03"
 #0 [ffff90377f008e48] crash_nmi_callback at ffffffff95055d07
 #1 [ffff90377f008e58] nmi_handle at ffffffff9576c8fc
 #2 [ffff90377f008eb0] do_nmi at ffffffff9576cb1d
 #3 [ffff90377f008ef0] end_repeat_nmi at ffffffff9576bd69
    [exception RIP: __switch_to+373]
    RIP: ffffffff9502a645  RSP: ffff903779dbbcb0  RFLAGS: 00000046
    RAX: 0000000000000000  RBX: ffff903772676180  RCX: 0000000000000000
    RDX: 0000000000000000  RSI: 0000000000000020  RDI: ffff903772676180
    RBP: ffff903779dbbcf8   R8: 0000000000001f81   R9: 0000000000000001
    R10: 0000000000000000  R11: 0000000000000000  R12: ffff903772674100
    R13: 0000000000000020  R14: 0000000000004000  R15: ffff903772674798
    ORIG_RAX: ffffffffffffffff  CS: 0010  SS: 0018
--- <NMI exception stack> ---
 #4 [ffff903779dbbcb0] __switch_to at ffffffff9502a645
 #5 [ffff903779dbbd00] __schedule at ffffffff95767747
 #6 [ffff903779dbbd98] schedule at ffffffff95767c49
 #7 [ffff903779dbbda8] kiblnd_scheduler at ffffffffc0c8752c [ko2iblnd]
 #8 [ffff903779dbbec8] kthread at ffffffff950c1c31
 #9 [ffff903779dbbf50] ret_from_fork_nospec_begin at ffffffff95774c24
crash> bt 19483
PID: 19483  TASK: ffff903772670000  CPU: 9   COMMAND: "kiblnd_sd_01_01"
 #0 [ffff90477f688e48] crash_nmi_callback at ffffffff95055d07
 #1 [ffff90477f688e58] nmi_handle at ffffffff9576c8fc
 #2 [ffff90477f688eb0] do_nmi at ffffffff9576cb1d
 #3 [ffff90477f688ef0] end_repeat_nmi at ffffffff9576bd69
    [exception RIP: __wake_up_common+49]
    RIP: ffffffff950cba71  RSP: ffff90377458fd30  RFLAGS: 00000086
    RAX: ffff9037752a3e38  RBX: ffff90477c1f1a88  RCX: ffff9037733cbe38
    RDX: 0000000000000001  RSI: 0000000000000003  RDI: ffff90477c1f1a88
    RBP: ffff90377458fd68   R8: 0000000000000000   R9: 0000000000001000
    R10: ffff904b88fd1600  R11: 0000000000000000  R12: ffff90477c1f1a90
    R13: 0000000000000003  R14: 0000000000000000  R15: 0000000000000003
    ORIG_RAX: ffffffffffffffff  CS: 0010  SS: 0018
--- <NMI exception stack> ---
 #4 [ffff90377458fd30] __wake_up_common at ffffffff950cba71
 #5 [ffff90377458fd70] __wake_up at ffffffff950cec59
 #6 [ffff90377458fda8] kiblnd_scheduler at ffffffffc0c8779f [ko2iblnd]
 #7 [ffff90377458fec8] kthread at ffffffff950c1c31
 #8 [ffff90377458ff50] ret_from_fork_nospec_begin at ffffffff95774c24
crash> bt 19484
PID: 19484  TASK: ffff903772671040  CPU: 33  COMMAND: "kiblnd_sd_01_02"
 #0 [ffff90477f808e48] crash_nmi_callback at ffffffff95055d07
 #1 [ffff90477f808e58] nmi_handle at ffffffff9576c8fc
 #2 [ffff90477f808eb0] do_nmi at ffffffff9576cb1d
 #3 [ffff90477f808ef0] end_repeat_nmi at ffffffff9576bd69
    [exception RIP: native_queued_spin_lock_slowpath+462]
    RIP: ffffffff9511228e  RSP: ffff9037752a3d50  RFLAGS: 00000002
    RAX: 0000000000000001  RBX: 0000000000000246  RCX: 0000000000000001
    RDX: 0000000000000101  RSI: 0000000000000001  RDI: ffff90477c1f1a88
    RBP: ffff9037752a3d50   R8: 0000000000000101   R9: 0000000000000001
    R10: 0000000000000000  R11: 0000000000000000  R12: ffff9037752a3e20
    R13: ffff90477c1f1a88  R14: ffff903772671040  R15: ffff90477c1f1aa0
    ORIG_RAX: ffffffffffffffff  CS: 0010  SS: 0018
--- <NMI exception stack> ---
 #4 [ffff9037752a3d50] native_queued_spin_lock_slowpath at ffffffff9511228e
 #5 [ffff9037752a3d58] queued_spin_lock_slowpath at ffffffff9575bfcb
 #6 [ffff9037752a3d68] _raw_spin_lock_irqsave at ffffffff9576a507
 #7 [ffff9037752a3d80] remove_wait_queue at ffffffff950c28d9
 #8 [ffff9037752a3da8] kiblnd_scheduler at ffffffffc0c8753b [ko2iblnd]
 #9 [ffff9037752a3ec8] kthread at ffffffff950c1c31
#10 [ffff9037752a3f50] ret_from_fork_nospec_begin at ffffffff95774c24
crash> bt 20743
PID: 20743  TASK: ffff9037724ae180  CPU: 8   COMMAND: "mdt00_009"
 #0 [ffff90377ee88e48] crash_nmi_callback at ffffffff95055d07
 #1 [ffff90377ee88e58] nmi_handle at ffffffff9576c8fc
 #2 [ffff90377ee88eb0] do_nmi at ffffffff9576cb1d
 #3 [ffff90377ee88ef0] end_repeat_nmi at ffffffff9576bd69
    [exception RIP: ldlm_grant_lock+53]
    RIP: ffffffffc0cc4aa5  RSP: ffff90377e9635f0  RFLAGS: 00000246
    RAX: 0000000000000001  RBX: ffff902a4e4f1680  RCX: dead000000000200
    RDX: 0000000000000000  RSI: 0000000000000000  RDI: ffff902a4e4f1680
    RBP: ffff90377e963608   R8: ffff902a4e4f16e0   R9: 0000202000000000
    R10: ffff9047756f3000  R11: ffff903765b3af00  R12: ffff905383485bc0
    R13: ffff90377e963684  R14: ffff90377e9637f0  R15: 0000000000000002
    ORIG_RAX: ffffffffffffffff  CS: 0010  SS: 0018
--- <NMI exception stack> ---
 #4 [ffff90377e9635f0] ldlm_grant_lock at ffffffffc0cc4aa5 [ptlrpc]
 #5 [ffff90377e963610] ldlm_process_inodebits_lock at ffffffffc0cf8336 [ptlrpc]
 #6 [ffff90377e963658] ldlm_lock_enqueue at ffffffffc0cc6c8b [ptlrpc]
 #7 [ffff90377e9636d0] ldlm_cli_enqueue_local at ffffffffc0ce0c4c [ptlrpc]
 #8 [ffff90377e963770] mdt_object_local_lock at ffffffffc13694bb [mdt]
 #9 [ffff90377e963830] mdt_object_lock_internal at ffffffffc1369b40 [mdt]
#10 [ffff90377e963890] mdt_object_lock_try at ffffffffc1369f67 [mdt]
#11 [ffff90377e9638b0] mdt_object_open_lock at ffffffffc138e938 [mdt]
#12 [ffff90377e963928] mdt_open_by_fid_lock at ffffffffc139201c [mdt]
#13 [ffff90377e963998] mdt_reint_open at ffffffffc1392cd0 [mdt]
#14 [ffff90377e963a88] mdt_reint_rec at ffffffffc1386ed3 [mdt]
#15 [ffff90377e963ab0] mdt_reint_internal at ffffffffc1365143 [mdt]
#16 [ffff90377e963af0] mdt_intent_open at ffffffffc1371982 [mdt]
#17 [ffff90377e963b30] mdt_intent_policy at ffffffffc136fa28 [mdt]
#18 [ffff90377e963b98] ldlm_lock_enqueue at ffffffffc0cc6d46 [ptlrpc]
#19 [ffff90377e963c10] ldlm_handle_enqueue0 at ffffffffc0cef707 [ptlrpc]
#20 [ffff90377e963ca8] tgt_enqueue at ffffffffc0d766e2 [ptlrpc]
#21 [ffff90377e963cc8] tgt_request_handle at ffffffffc0d7d73a [ptlrpc]
#22 [ffff90377e963d50] ptlrpc_server_handle_request at ffffffffc0d21d0b [ptlrpc]
#23 [ffff90377e963df0] ptlrpc_main at ffffffffc0d2563c [ptlrpc]
#24 [ffff90377e963ec8] kthread at ffffffff950c1c31
#25 [ffff90377e963f50] ret_from_fork_nospec_begin at ffffffff95774c24
crash> bt 21344
PID: 21344  TASK: ffff903705aca080  CPU: 44  COMMAND: "mdt00_024"
 #0 [ffff90377f0c8e48] crash_nmi_callback at ffffffff95055d07
 #1 [ffff90377f0c8e58] nmi_handle at ffffffff9576c8fc
 #2 [ffff90377f0c8eb0] do_nmi at ffffffff9576cb1d
 #3 [ffff90377f0c8ef0] end_repeat_nmi at ffffffff9576bd69
    [exception RIP: llog_cat_id2handle+259]
    RIP: ffffffffc0a95e43  RSP: ffff903704ac7698  RFLAGS: 00000287
    RAX: ffff90384c3b5300  RBX: ffff903704ac7784  RCX: 0000000000000001
    RDX: 000000000001160c  RSI: 000000000001509b  RDI: ffffffff0001160c
    RBP: ffff903704ac76f8   R8: ffffffff0001160c   R9: ffffffffc124f134
    R10: ffffffff00000000  R11: 0000ffffffffffff  R12: ffff90377ea69500
    R13: 00000000ffffffff  R14: ffff903704ac7c18  R15: ffff903704ac7728
    ORIG_RAX: ffffffffffffffff  CS: 0010  SS: 0018
--- <NMI exception stack> ---
 #4 [ffff903704ac7698] llog_cat_id2handle at ffffffffc0a95e43 [obdclass]
 #5 [ffff903704ac7700] llog_cat_cancel_records at ffffffffc0a97120 [obdclass]
 #6 [ffff903704ac7768] llog_changelog_cancel_cb at ffffffffc14dd9b4 [mdd]
 #7 [ffff903704ac77c8] llog_process_thread at ffffffffc0a91732 [obdclass]
 #8 [ffff903704ac78a0] llog_process_or_fork at ffffffffc0a924fc [obdclass]
 #9 [ffff903704ac78e8] llog_cat_process_cb at ffffffffc0a975f9 [obdclass]
#10 [ffff903704ac7938] llog_process_thread at ffffffffc0a91732 [obdclass]
#11 [ffff903704ac7a10] llog_process_or_fork at ffffffffc0a924fc [obdclass]
#12 [ffff903704ac7a58] llog_cat_process_or_fork at ffffffffc0a9682f [obdclass]
#13 [ffff903704ac7ad0] llog_cat_process at ffffffffc0a969de [obdclass]
#14 [ffff903704ac7af0] llog_changelog_cancel at ffffffffc14dc9d4 [mdd]
#15 [ffff903704ac7b30] mdd_changelog_llog_cancel at ffffffffc14dedd0 [mdd]
#16 [ffff903704ac7b80] mdd_iocontrol at ffffffffc14e4d7e [mdd]
#17 [ffff903704ac7bf0] mdt_iocontrol at ffffffffc136c8fc [mdt]
#18 [ffff903704ac7c88] mdt_set_info at ffffffffc136d294 [mdt]
#19 [ffff903704ac7cc8] tgt_request_handle at ffffffffc0d7d73a [ptlrpc]
#20 [ffff903704ac7d50] ptlrpc_server_handle_request at ffffffffc0d21d0b [ptlrpc]
#21 [ffff903704ac7df0] ptlrpc_main at ffffffffc0d2563c [ptlrpc]
#22 [ffff903704ac7ec8] kthread at ffffffff950c1c31
#23 [ffff903704ac7f50] ret_from_fork_nospec_begin at ffffffff95774c24
crash> bt 21612
PID: 21612  TASK: ffff905758aca080  CPU: 1   COMMAND: "mdt_rdpg01_025"
 #0 [ffff90477f608e48] crash_nmi_callback at ffffffff95055d07
 #1 [ffff90477f608e58] nmi_handle at ffffffff9576c8fc
 #2 [ffff90477f608eb0] do_nmi at ffffffff9576cb1d
 #3 [ffff90477f608ef0] end_repeat_nmi at ffffffff9576bd69
    [exception RIP: lprocfs_counter_add+144]
    RIP: ffffffffc0abb8c0  RSP: ffff9047463ffd20  RFLAGS: 00000202
    RAX: ffff9047650a06e0  RBX: ffff903779d7e000  RCX: 00000000000000dc
    RDX: ffff90373aa7e420  RSI: 000000000000002c  RDI: ffff903779d7e000
    RBP: ffff9047463ffd48   R8: 0000000000401ebd   R9: 0000000000000030
    R10: 0000000000000000  R11: ffff903b6e7202b8  R12: 000000000000002c
    R13: 0000000000000021  R14: ffff906776f6f800  R15: 15a85169004af150
    ORIG_RAX: ffffffffffffffff  CS: 0010  SS: 0018
--- <NMI exception stack> ---
 #4 [ffff9047463ffd20] lprocfs_counter_add at ffffffffc0abb8c0 [obdclass]
 #5 [ffff9047463ffd50] ptlrpc_server_handle_request at ffffffffc0d2219f [ptlrpc]
 #6 [ffff9047463ffdf0] ptlrpc_main at ffffffffc0d2563c [ptlrpc]
 #7 [ffff9047463ffec8] kthread at ffffffff950c1c31
 #8 [ffff9047463fff50] ret_from_fork_nospec_begin at ffffffff95774c24
crash> bt 49210
PID: 49210  TASK: ffff90477af56180  CPU: 11  COMMAND: "mdt03_089"
 #0 [ffff905868b87550] machine_kexec at ffffffff95063674
 #1 [ffff905868b875b0] __crash_kexec at ffffffff9511cef2
 #2 [ffff905868b87680] panic at ffffffff9575b55b
 #3 [ffff905868b87700] lbug_with_loc at ffffffffc09588cb [libcfs]
 #4 [ffff905868b87720] osp_declare_create at ffffffffc154ecc5 [osp]
 #5 [ffff905868b87780] lod_sub_declare_create at ffffffffc149639f [lod]
 #6 [ffff905868b877e0] lod_qos_prep_create at ffffffffc1495904 [lod]
 #7 [ffff905868b878e8] lod_declare_instantiate_components at ffffffffc1476bba [lod]
 #8 [ffff905868b87920] lod_declare_layout_change at ffffffffc14894d5 [lod]
 #9 [ffff905868b87988] mdd_declare_layout_change at ffffffffc14fb102 [mdd]
#10 [ffff905868b879b0] mdd_layout_change at ffffffffc1503e52 [mdd]
#11 [ffff905868b87a28] mdt_layout_change at ffffffffc136a327 [mdt]
#12 [ffff905868b87a78] mdt_intent_layout at ffffffffc137243e [mdt]
#13 [ffff905868b87b30] mdt_intent_policy at ffffffffc136fa28 [mdt]
#14 [ffff905868b87b98] ldlm_lock_enqueue at ffffffffc0cc6d46 [ptlrpc]
#15 [ffff905868b87c10] ldlm_handle_enqueue0 at ffffffffc0cef707 [ptlrpc]
#16 [ffff905868b87ca8] tgt_enqueue at ffffffffc0d766e2 [ptlrpc]
#17 [ffff905868b87cc8] tgt_request_handle at ffffffffc0d7d73a [ptlrpc]
#18 [ffff905868b87d50] ptlrpc_server_handle_request at ffffffffc0d21d0b [ptlrpc]
#19 [ffff905868b87df0] ptlrpc_main at ffffffffc0d2563c [ptlrpc]
#20 [ffff905868b87ec8] kthread at ffffffff950c1c31
#21 [ffff905868b87f50] ret_from_fork_nospec_begin at ffffffff95774c24