db> show lock 0xc0000004dfee50c0
 class: spin mutex
 name: turnstile lock
 flags: {SPIN, RECURSE}
 state: {UNOWNED}
db> show turnstile 0xc0000004dfee50c0
Lock: 0xc000000049a0e500 - (rw) vm object
Lock Owner: none
Shared Waiters:
        0xc000000055617000 (tid 103491, pid 99585, "cc")
        0xc000200022ef7560 (tid 103367, pid 99827, "cc")
Exclusive Waiters:
        0xc000200011a91560 (tid 101338, pid 99587, "cc")
        0xc000000499a27560 (tid 101693, pid 99969, "cc")
        0xc000200022f3e560 (tid 103484, pid 99893, "cc")
        0xc000000049011000 (tid 101085, pid 99881, "cc")
        0xc000200022f60560 (tid 103315, pid 99903, "cc")
        0xc00020001193b000 (tid 103433, pid 99908, "cc")
        0xc00020000b669000 (tid 103471, pid 99952, "cc")
        0xc0002004182bf560 (tid 101674, pid 99896, "cc")
        0xc000200022f45560 (tid 103399, pid 99891, "cc")
        0xc00000004dbb3000 (tid 101405, pid 99946, "cc")
        0xc00020001fcb1000 (tid 101832, pid 99941, "cc")
        0xc00020001190e560 (tid 101431, pid 99874, "cc")
        0xc000000049a91000 (tid 101297, pid 99938, "cc")
        0xc0000004e2da9560 (tid 101964, pid 99892, "cc")
        0xc00020001fca9560 (tid 103457, pid 99947, "cc")
        0xc00000004db9a000 (tid 101360, pid 99917, "cc")
        0xc00000005560f560 (tid 103529, pid 99930, "cc")
        0xc00000004a0d9000 (tid 101651, pid 99828, "cc")
        0xc000200011ae9560 (tid 103411, pid 99831, "cc")
        0xc000200011ac8560 (tid 101460, pid 99882, "cc")
        0xc000200011a81000 (tid 101086, pid 99929, "cc")
        0xc0002003ceb02560 (tid 102152, pid 99841, "cc")
        0xc000200022ef3000 (tid 101618, pid 99940, "cc")
        0xc000200011ae8560 (tid 101631, pid 99838, "cc")
        0xc0002004190bb000 (tid 102156, pid 99968, "cc")
        0xc0000004c6ada560 (tid 101755, pid 99849, "cc")
        0xc0000000555dc560 (tid 103400, pid 99948, "cc")
        0xc00020000b661000 (tid 103288, pid 99830, "cc")
        0xc000000055664000 (tid 103304, pid 99931, "cc")
        0xc0002004182c0000 (tid 102391, pid 99926, "cc")
        0xc00000005565b000 (tid 101900, pid 99819, "cc")
        0xc00020000b65d560 (tid 101422, pid 99943, "cc")
        0xc00000004db8e000 (tid 103412, pid 99880, "cc")
        0xc000200022f2f560 (tid 103461, pid 99905, "cc")
        0xc000200011a7a000 (tid 101656, pid 99879, "cc")
        0xc000200022f5d560 (tid 103557, pid 99904, "cc")
        0xc000200011ab3560 (tid 101408, pid 99939, "cc")
        0xc000000048ff8000 (tid 103390, pid 99914, "cc")
        0xc000000490baa000 (tid 101672, pid 99898, "cc")
        0xc00020037784b000 (tid 103544, pid 99957, "sh")
        0xc000200022efe000 (tid 103326, pid 99928, "cc")
        0xc00000004dba3000 (tid 101556, pid 99951, "cc")
        0xc000000049018560 (tid 101562, pid 99967, "sh")
        0xc000000049012000 (tid 101601, pid 99912, "cc")
        0xc000200022f58000 (tid 103552, pid 99955, "sh")
        0xc000200011a97000 (tid 101625, pid 99963, "sh")
        0xc000200022f00000 (tid 101571, pid 99961, "sh")
        0xc000200011ac1000 (tid 101636, pid 99945, "cc")
        0xc00000005561e000 (tid 103500, pid 99916, "cc")
        0xc000200419644000 (tid 101773, pid 99888, "cc")
        0xc000200011a8b000 (tid 101594, pid 99949, "cc")
        0xc000000055611560 (tid 103514, pid 99925, "sh")
        0xc00020000b68f000 (tid 101292, pid 99950, "cc")
        0xc000200022ef7000 (tid 101883, pid 99918, "cc")
        0xc00000004db8f000 (tid 102859, pid 99935, "cc")
        0xc000000055668000 (tid 101831, pid 99965, "sh")
        0xc000200022eef560 (tid 101616, pid 99920, "cc")
        0xc000200022f5d000 (tid 103439, pid 99897, "cc")
        0xc00020041a6d8000 (tid 101787, pid 99959, "cc")
        0xc000200022f55560 (tid 103548, pid 99937, "cc")
        0xc000200022f2c560 (tid 103481, pid 99921, "cc")
Pending Threads:
        empty
db> acttrace

Tracing command sysctl pid 99971 tid 103243 td 0xc00000004dba4000 (CPU 47)
0xe00000011313e3e0: at sbuf_new_for_sysctl+0x240
0xe00000011313e440: at kernel_sysctl+0x5c4
0xe00000011313e4e0: at userland_sysctl+0x1a0
0xe00000011313e5c0: at sys___sysctl+0x8c
0xe00000011313e6b0: at trap+0xe68
0xe00000011313e790: at powerpc_interrupt+0x1a0
0xe00000011313e7e0: user SC trap by 0x81023eef0: srr1=0x900000000200f032
            r1=0x3fffffffffffc310 cr=0x22840280 xer=0 ctr=0x81023eee0 r2=0x81027a400 frame=0xe00000011313e810

Tracing command cc pid 99953 tid 101858 td 0xc00000004db36560 (CPU 55)
0xe0000001146225c0: at intr_event_handle+0x100
0xe000000114622620: at powerpc_dispatch_intr+0xe0
0xe0000001146226c0: at powernv_mem_regions+0x1e8c
0xe000000114622760: at powerpc_interrupt+0x134
0xe0000001146227b0: kernel trap 0xea0 by moea64_enter+0x900: srr1=0x9000000000009032
            r1=0xe000000114622a60 cr=0x44222832 xer=0 ctr=0x1 r2=0xc000000003a2b000 frame=0xe0000001146227e0
0xe000000114622a60: at moea64_enter+0x8c4
0xe000000114622af0: at moea64_enter+0x3e0
0xe000000114622bd0: at moea64_enter_object+0x98
0xe000000114622c30: at pmap_enter_object+0xac
0xe000000114622c90: at vm_map_try_merge_entries+0x638
0xe000000114622d40: at vm_map_insert+0x4fc
0xe000000114622e30: at vm_map_fixed+0x11c
0xe000000114622ea0: at elf64_stackgap+0x3dec
0xe000000114622f30: at elf64_stackgap+0x3698
0xe000000114623030: at elf64_stackgap+0x2c24
0xe0000001146231e0: at kern_execve+0x674
0xe000000114623610: at sys_execve+0x7c
0xe0000001146236b0: at trap+0xe68
0xe000000114623790: at powerpc_interrupt+0x1a0
0xe0000001146237e0: user SC trap by 0x13a6e470: srr1=0x900000000200d032
            r1=0x3fffffffffffafa0 cr=0x424802c2 xer=0x20040000 ctr=0 r2=0x14a7ac00 frame=0xe000000114623810

Tracing command idle pid 11 tid 100003 td 0xc0000000023aa000 (CPU 0)
0xe0000000001f6230: at intr_event_handle+0x100
0xe0000000001f6290: at powerpc_dispatch_intr+0xe0
0xe0000000001f6330: at powernv_mem_regions+0x1e8c
0xe0000000001f63d0: at powerpc_interrupt+0x134
0xe0000000001f6420: kernel trap 0xea0 by cpu_idle_wakeup+0x780: srr1=0x9000000000009032
            r1=0xe0000000001f66d0 cr=0x24000000 xer=0 ctr=0xc000000003183724 r2=0xc000000003a2b000 frame=0xe0000000001f6450
0xe0000000001f66d0: at cpu_idle+0x64
0xe0000000001f6700: at sched_idletd+0x3d8
0xe0000000001f6830: at fork_exit+0xd8
0xe0000000001f68c0: at fork_trampoline+0x18
0xe0000000001f68f0: at -0x4

Tracing command idle pid 11 tid 100004 td 0xc000200002d66560 (CPU 1)
0xe0000000001ff230: at intr_event_handle+0x100
0xe0000000001ff290: at powerpc_dispatch_intr+0xe0
0xe0000000001ff330: at powernv_mem_regions+0x1e8c
0xe0000000001ff3d0: at powerpc_interrupt+0x134
0xe0000000001ff420: kernel trap 0xea0 by cpu_idle_wakeup+0x780: srr1=0x9000000000009032
            r1=0xe0000000001ff6d0 cr=0x24000400 xer=0 ctr=0xc000000003183724 r2=0xc000000003a2b000 frame=0xe0000000001ff450
0xe0000000001ff6d0: at cpu_idle+0x64
0xe0000000001ff700: at sched_idletd+0x3d8
0xe0000000001ff830: at fork_exit+0xd8
0xe0000000001ff8c0: at fork_trampoline+0x18
0xe0000000001ff8f0: at cpu_reset_handler+0x64