*cpu0: uvm_fault(0xfffffd806c2a98b0, 0x8, 0, 1) -> e ddb{1}> trace proc_trampoline() at proc_trampoline+0xc7 end of kernel end trace frame: 0x6f80e06b7130, count: -1 ddb{1}> show registers rdi 0 rsi 0 rbp 0xffff80002a130f50 rbx 0 rdx 0 rcx 0xffff8000371cf1e0 rax 0x2a r8 0xffff80002a130e80 r9 0x4 r10 0xaa3ed90f98de6d82 r11 0x6bdc14fccabc01c2 r12 0 r13 0 r14 0 r15 0 rip 0xffffffff81d3b4c7 proc_trampoline+0xc7 cs 0x8 rflags 0x246 rsp 0xffff80002a130ed0 ss 0 proc_trampoline+0xc7: movl $0,%gs:0x680 ddb{1}> show proc PROC (syz-executor) tid=378862 pid=88105 tcnt=1 stat=onproc flags process=10 proc=0 runpri=82, usrpri=82, slppri=17, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff8000371cef58,0xffffffff8357fb18 process=0xffff8000333768e0 user=0xffff80002a12b000, vmspace=0xfffffd806c2a9a68 estcpu=32, cpticks=2, pctcpu=0.0, user=0, sys=2, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND *88105 378862 30604 32767 7 0x10 syz-executor 99206 88710 51645 32767 2 0x10 syz-executor 99206 43284 51645 32767 7 0x4000010 syz-executor 99206 485005 51645 32767 3 0x4000090 fsleep syz-executor 99206 233017 51645 32767 3 0x4000090 fsleep syz-executor 58385 496842 65868 32767 3 0x90 nanoslp syz-executor 58385 255679 65868 32767 3 0x4000090 fsleep syz-executor 58385 349185 65868 32767 3 0x4000090 fsleep syz-executor 76764 43087 62576 32767 3 0x3010 suspend syz-executor 76764 129694 62576 32767 3 0x4081010 inode syz-executor 76764 448327 62576 32767 2 0x4081010 syz-executor 51645 363673 66335 32767 3 0x90 nanoslp syz-executor 62576 306019 24513 32767 3 0x90 nanoslp syz-executor 50073 122025 30439 32767 2 0x10 syz-executor 30604 494630 32609 32767 3 0x90 nanoslp syz-executor 65868 401851 24063 32767 3 0x90 nanoslp syz-executor 65073 314648 76704 32767 2 0x10 syz-executor 11457 433293 36275 32767 2 0x10 syz-executor 66335 403083 81969 0 3 0x82 wait syz-executor 24513 80469 81969 0 3 0x82 wait syz-executor 76704 487912 81969 0 3 0x82 wait syz-executor 36275 523141 81969 0 3 0x82 wait syz-executor 24063 157827 81969 0 3 0x82 wait syz-executor 30439 36066 81969 0 3 0x82 wait syz-executor 13144 196071 8616 32767 2 0x10 syz-executor 32609 104362 81969 0 3 0x82 wait syz-executor 8616 335342 81969 0 3 0x82 wait syz-executor 3852 117590 0 0 3 0x14200 bored sosplice 81969 452318 94083 0 3 0x82 kqread syz-executor 94083 203544 9577 0 3 0x10008a sigsusp ksh 9577 275151 99807 0 3 0x98 kqread sshd-session 99807 72723 94106 0 3 0x92 kqread sshd-session 15901 260893 1 0 3 0x100083 ttyin getty 94106 60478 1 0 3 0x88 kqread sshd 16945 271914 66572 73 2 0x1100010 syslogd 66572 83510 1 0 3 0x100082 sbwait syslogd 68771 208642 1 0 3 0x100080 kqread resolvd 33991 314076 83085 77 3 0x100092 kqread dhcpleased 79384 483630 83085 77 3 0x100092 kqread dhcpleased 83085 173895 1 0 3 0x80 kqread dhcpleased 46679 2909 0 0 3 0x14200 bored smr 40189 220492 0 0 3 0x14200 pgzero zerothread 74362 199733 0 0 3 0x14200 aiodoned aiodoned 19401 210754 0 0 3 0x14200 syncer update 83853 167784 0 0 3 0x14200 cleaner cleaner 16173 207192 0 0 3 0x14200 reaper reaper 34032 518806 0 0 3 0x14200 pgdaemon pagedaemon 92524 23579 0 0 3 0x14200 bored viomb 46943 292965 0 0 3 0x40014200 acpi0 acpi0 99227 436865 0 0 3 0x40014200 idle1 57219 75891 0 0 3 0x14200 bored softnet3 54536 508438 0 0 3 0x14200 bored softnet2 96351 178455 0 0 3 0x14200 bored softnet1 37292 434971 0 0 3 0x14200 bored softnet0 24928 421531 0 0 3 0x14200 bored systqmp 85534 164608 0 0 3 0x14200 bored systq 60204 435413 0 0 3 0x14200 tmoslp softclockmp 85463 174596 0 0 3 0x40014200 tmoslp softclock 77446 367508 0 0 3 0x40014200 idle0 1 415815 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks CPU 1: exclusive mutex &pmap->pm_mtx r = 0 (0xfffffd806c76b6e8) #0 witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5b8 sys/kern/subr_witness.c:1151 #1 mtx_enter_try+0x178 #2 mtx_enter+0x60 sys/kern/kern_lock.c:239 #3 pmap_enter+0x246 rcr3 machine/cpufunc.h:139 [inline] #3 pmap_enter+0x246 pmap_map_ptes sys/arch/amd64/amd64/pmap.c:432 [inline] #3 pmap_enter+0x246 sys/arch/amd64/amd64/pmap.c:2791 #4 uvm_fault_lower_lookup+0x33c sys/uvm/uvm_fault.c:1192 #5 uvm_fault_lower+0x74 sys/uvm/uvm_fault.c:1227 #6 uvm_fault+0x301 sys/uvm/uvm_fault.c:637 #7 upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:188 #8 usertrap+0x2d8 sys/arch/amd64/amd64/trap.c:436 #9 recall_trap+0x8 Process 88105 (syz-executor) thread 0xffff8000371cf1e0 (378862) exclusive rwlock uobjlk r = 0 (0xfffffd806d0b7600) #0 witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5b8 sys/kern/subr_witness.c:1151 #1 rw_enter+0x41b sys/kern/kern_rwlock.c:309 #2 uvm_fault_lower_lookup+0x54 sys/uvm/uvm_fault.c:1126 #3 uvm_fault_lower+0x74 sys/uvm/uvm_fault.c:1227 #4 uvm_fault+0x301 sys/uvm/uvm_fault.c:637 #5 upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:188 #6 usertrap+0x2d8 sys/arch/amd64/amd64/trap.c:436 #7 recall_trap+0x8 shared rwlock vmmaplk r = 0 (0xfffffd806c2a9b58) #0 witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5b8 sys/kern/subr_witness.c:1151 #1 uvmfault_lookup+0x122 sys/uvm/uvm_fault.c:1785 #2 uvm_fault_check+0x47 sys/uvm/uvm_fault.c:672 #3 uvm_fault+0x112 sys/uvm/uvm_fault.c:600 #4 upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:188 #5 usertrap+0x2d8 sys/arch/amd64/amd64/trap.c:436 #6 recall_trap+0x8 exclusive mutex &pmap->pm_mtx r = 0 (0xfffffd806c76b6e8) #0 witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5b8 sys/kern/subr_witness.c:1151 #1 mtx_enter_try+0x178 #2 mtx_enter+0x60 sys/kern/kern_lock.c:239 #3 pmap_enter+0x246 rcr3 machine/cpufunc.h:139 [inline] #3 pmap_enter+0x246 pmap_map_ptes sys/arch/amd64/amd64/pmap.c:432 [inline] #3 pmap_enter+0x246 sys/arch/amd64/amd64/pmap.c:2791 #4 uvm_fault_lower_lookup+0x33c sys/uvm/uvm_fault.c:1192 #5 uvm_fault_lower+0x74 sys/uvm/uvm_fault.c:1227 #6 uvm_fault+0x301 sys/uvm/uvm_fault.c:637 #7 upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:188 #8 usertrap+0x2d8 sys/arch/amd64/amd64/trap.c:436 #9 recall_trap+0x8 Process 99206 (syz-executor) thread 0xffff8000371ce028 (43284) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff83501b20) #0 witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5b8 sys/kern/subr_witness.c:1151 #1 __mp_acquire_count+0x58 #2 mi_switch+0x658 sys/kern/sched_bsd.c:460 #3 sleep_finish+0x219 sys/kern/kern_synch.c:416 #4 biowait+0xc1 sys/kern/vfs_bio.c:1254 #5 bwrite+0x2e2 sys/kern/vfs_bio.c:766 #6 VOP_BWRITE+0x60 sys/kern/vfs_vops.c:646 #7 ufs_direnter+0x7d1 sys/ufs/ufs/ufs_lookup.c:833 #8 ufs_makeinode+0x51e sys/ufs/ufs/ufs_vnops.c:1764 #9 ufs_symlink+0x54 sys/ufs/ufs/ufs_vnops.c:1293 #10 VOP_SYMLINK+0x11a sys/kern/vfs_vops.c:432 #11 dosymlinkat+0x1dd sys/kern/vfs_syscalls.c:1806 #12 syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] #12 syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 #13 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd80614c12b8) #0 witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5b8 sys/kern/subr_witness.c:1151 #1 rw_enter+0x41b sys/kern/kern_rwlock.c:309 #2 rrw_enter+0xbe sys/kern/kern_rwlock.c:464 #3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:564 #5 vget+0x2bd sys/kern/vfs_subr.c:676 #6 ufs_ihashget+0x171 sys/ufs/ufs/ufs_ihash.c:95 #7 ffs_vget+0x8c sys/ufs/ffs/ffs_vfsops.c:1201 #8 ffs_inode_alloc+0x283 sys/ufs/ffs/ffs_alloc.c:393 #9 ufs_makeinode+0xcb sys/ufs/ufs/ufs_vnops.c:1728 #10 ufs_symlink+0x54 sys/ufs/ufs/ufs_vnops.c:1293 #11 VOP_SYMLINK+0x11a sys/kern/vfs_vops.c:432 #12 dosymlinkat+0x1dd sys/kern/vfs_syscalls.c:1806 #13 syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] #13 syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 #14 Xsyscall+0x128 Process 76764 (syz-executor) thread 0xffff80003459d460 (448327) exclusive rrwlock inode r = 0 (0xfffffd80614c1a28) #0 witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5b8 sys/kern/subr_witness.c:1151 #1 rw_enter+0x41b sys/kern/kern_rwlock.c:309 #2 rrw_enter+0xbe sys/kern/kern_rwlock.c:464 #3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524 #4 ufs_ihashins+0x4f sys/ufs/ufs/ufs_ihash.c:120 #5 ffs_vget+0x187 sys/ufs/ffs/ffs_vfsops.c:1230 #6 ffs_inode_alloc+0x283 sys/ufs/ffs/ffs_alloc.c:393 #7 ufs_makeinode+0xcb sys/ufs/ufs/ufs_vnops.c:1728 #8 ufs_create+0x4e sys/ufs/ufs/ufs_vnops.c:147 #9 VOP_CREATE+0xff sys/kern/vfs_vops.c:103 #10 vn_open+0x491 sys/kern/vfs_vnops.c:116 #11 doopenat+0x31d sys/kern/vfs_syscalls.c:1123 #12 syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] #12 syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 #13 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd80614c16f8) #0 witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5b8 sys/kern/subr_witness.c:1151 #1 rw_enter+0x41b sys/kern/kern_rwlock.c:309 #2 rrw_enter+0xbe sys/kern/kern_rwlock.c:464 #3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:564 #5 vfs_lookup+0x109 sys/kern/vfs_lookup.c:418 #6 namei+0x7aa sys/kern/vfs_lookup.c:250 #7 vn_open+0x1f4 sys/kern/vfs_vnops.c:107 #8 doopenat+0x31d sys/kern/vfs_syscalls.c:1123 #9 syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] #9 syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 #10 Xsyscall+0x128 Process 50073 (syz-executor) thread 0xffff8000371ce538 (122025) exclusive rrwlock inode r = 0 (0xfffffd80614c1d58) #0 witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5b8 sys/kern/subr_witness.c:1151 #1 rw_enter+0x41b sys/kern/kern_rwlock.c:309 #2 rrw_enter+0xbe sys/kern/kern_rwlock.c:464 #3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:564 #5 vget+0x2bd sys/kern/vfs_subr.c:676 #6 ufs_ihashget+0x171 sys/ufs/ufs/ufs_ihash.c:95 #7 ffs_vget+0x8c sys/ufs/ffs/ffs_vfsops.c:1201 #8 ufs_lookup+0x19f8 sys/ufs/ufs/ufs_lookup.c:478 #9 VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85 #10 vfs_lookup+0x8fa sys/kern/vfs_lookup.c:566 #11 namei+0x7aa sys/kern/vfs_lookup.c:250 #12 dounlinkat+0xc1 sys/kern/vfs_syscalls.c:1852 #13 syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] #13 syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 #14 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806c2a21b8) #0 witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5b8 sys/kern/subr_witness.c:1151 #1 rw_enter+0x41b sys/kern/kern_rwlock.c:309 #2 rrw_enter+0xbe sys/kern/kern_rwlock.c:464 #3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:564 #5 vfs_lookup+0x109 sys/kern/vfs_lookup.c:418 #6 namei+0x7aa sys/kern/vfs_lookup.c:250 #7 dounlinkat+0xc1 sys/kern/vfs_syscalls.c:1852 #8 syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] #8 syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 #9 Xsyscall+0x128 Process 65073 (syz-executor) thread 0xffff8000371cecd0 (314648) exclusive rrwlock inode r = 0 (0xfffffd80614c1e68) #0 witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5b8 sys/kern/subr_witness.c:1151 #1 rw_enter+0x41b sys/kern/kern_rwlock.c:309 #2 rrw_enter+0xbe sys/kern/kern_rwlock.c:464 #3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:564 #5 vget+0x2bd sys/kern/vfs_subr.c:676 #6 ufs_ihashget+0x171 sys/ufs/ufs/ufs_ihash.c:95 #7 ffs_vget+0x8c sys/ufs/ffs/ffs_vfsops.c:1201 #8 ufs_lookup+0x19f8 sys/ufs/ufs/ufs_lookup.c:478 #9 VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85 #10 vfs_lookup+0x8fa sys/kern/vfs_lookup.c:566 #11 namei+0x7aa sys/kern/vfs_lookup.c:250 #12 dounlinkat+0xc1 sys/kern/vfs_syscalls.c:1852 #13 syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] #13 syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 #14 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806c2a2b48) #0 witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5b8 sys/kern/subr_witness.c:1151 #1 rw_enter+0x41b sys/kern/kern_rwlock.c:309 #2 rrw_enter+0xbe sys/kern/kern_rwlock.c:464 #3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:564 #5 vfs_lookup+0x109 sys/kern/vfs_lookup.c:418 #6 namei+0x7aa sys/kern/vfs_lookup.c:250 #7 dounlinkat+0xc1 sys/kern/vfs_syscalls.c:1852 #8 syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] #8 syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 #9 Xsyscall+0x128 Process 11457 (syz-executor) thread 0xffff8000371cf468 (433293) exclusive rrwlock inode r = 0 (0xfffffd80614c1b38) #0 witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5b8 sys/kern/subr_witness.c:1151 #1 rw_enter+0x41b sys/kern/kern_rwlock.c:309 #2 rrw_enter+0xbe sys/kern/kern_rwlock.c:464 #3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524 #4 ufs_ihashins+0x4f sys/ufs/ufs/ufs_ihash.c:120 #5 ffs_vget+0x187 sys/ufs/ffs/ffs_vfsops.c:1230 #6 ffs_inode_alloc+0x283 sys/ufs/ffs/ffs_alloc.c:393 #7 ufs_mkdir+0x113 sys/ufs/ufs/ufs_vnops.c:1112 #8 VOP_MKDIR+0x102 sys/kern/vfs_vops.c:394 #9 domkdirat+0x179 sys/kern/vfs_syscalls.c:3099 #10 syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] #10 syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 #11 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806cdac1a8) #0 witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5b8 sys/kern/subr_witness.c:1151 #1 rw_enter+0x41b sys/kern/kern_rwlock.c:309 #2 rrw_enter+0xbe sys/kern/kern_rwlock.c:464 #3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:564 #5 vfs_lookup+0x109 sys/kern/vfs_lookup.c:418 #6 namei+0x7aa sys/kern/vfs_lookup.c:250 #7 domkdirat+0x8b sys/kern/vfs_syscalls.c:3084 #8 syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] #8 syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 #9 Xsyscall+0x128 Process 13144 (syz-executor) thread 0xffff80003459d6e8 (196071) exclusive rrwlock inode r = 0 (0xfffffd80614c1918) #0 witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5b8 sys/kern/subr_witness.c:1151 #1 rw_enter+0x41b sys/kern/kern_rwlock.c:309 #2 rrw_enter+0xbe sys/kern/kern_rwlock.c:464 #3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:564 #5 vget+0x2bd sys/kern/vfs_subr.c:676 #6 ufs_ihashget+0x171 sys/ufs/ufs/ufs_ihash.c:95 #7 ffs_vget+0x8c sys/ufs/ffs/ffs_vfsops.c:1201 #8 ufs_lookup+0x19f8 sys/ufs/ufs/ufs_lookup.c:478 #9 VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85 #10 vfs_lookup+0x8fa sys/kern/vfs_lookup.c:566 #11 namei+0x7aa sys/kern/vfs_lookup.c:250 #12 dounlinkat+0xc1 sys/kern/vfs_syscalls.c:1852 #13 syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] #13 syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 #14 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806c2a2708) #0 witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5b8 sys/kern/subr_witness.c:1151 #1 rw_enter+0x41b sys/kern/kern_rwlock.c:309 #2 rrw_enter+0xbe sys/kern/kern_rwlock.c:464 #3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:564 #5 vfs_lookup+0x109 sys/kern/vfs_lookup.c:418 #6 namei+0x7aa sys/kern/vfs_lookup.c:250 #7 dounlinkat+0xc1 sys/kern/vfs_syscalls.c:1852 #8 syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] #8 syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 #9 Xsyscall+0x128 Process 16945 (syslogd) thread 0xffff8000ffffdbe8 (271914) exclusive rrwlock inode r = 0 (0xfffffd806e337a30) #0 witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5b8 sys/kern/subr_witness.c:1151 #1 rw_enter+0x41b sys/kern/kern_rwlock.c:309 #2 rrw_enter+0xbe sys/kern/kern_rwlock.c:464 #3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:564 #5 sys_fsync+0x152 sys/kern/vfs_syscalls.c:2926 #6 syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] #6 syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 #7 Xsyscall+0x128 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10188 10025K 10036K 166960K 11317 0 pcb 17 12K 12K 166960K 17 0 rtable 234 6K 6K 166960K 838 0 pf 31 16K 16K 166960K 66 0 ifaddr 42 7K 7K 166960K 111 0 ifgroup 50 2K 2K 166960K 119 0 sysctl 1 0K 0K 166960K 2 0 counters 64 36K 36K 166960K 98 0 ioctlops 0 0K 2K 166960K 50 0 iov 0 0K 16K 166960K 18 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1456 91K 92K 166960K 1659 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 3 0 VM map 2 1K 1K 166960K 2 0 sem 9 0K 0K 166960K 10 0 dirhash 12 2K 2K 166960K 12 0 ACPI 1697 195K 286K 166960K 12548 0 file desc 22 81K 161K 166960K 597 0 sigio 0 0K 0K 166960K 4 0 proc 56 78K 176K 166960K 959 0 subproc 104 6K 12K 166960K 338 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 52 0 in_multi 99 7K 7K 166960K 280 0 ether_multi 1 0K 0K 166960K 2 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 79 360K 360K 166960K 79 0 exec 0 0K 1K 166960K 564 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 238 73K 130K 166960K 5787 0 UVM aobj 5 2K 4K 166960K 6 0 pinsyscall 43 86K 128K 166960K 2001 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 25 0 NDP 11 0K 2K 166960K 75 0 temp 56 6818K 6946K 166960K 7541 0 kqueue 16 26K 30K 166960K 67 0 SYN cache 2 16K 16K 166960K 2 0 ddb{1}> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle plcache 128 24 0 0 1 0 1 1 0 8 0 rtpcb 120 86 0 83 1 0 1 1 0 8 0 rtentry 112 289 0 179 4 0 4 4 0 8 0 unpcb 144 205 0 186 2 1 1 2 0 8 0 syncache 336 5 0 5 2 2 0 1 0 8 0 tcpcb 808 193 0 189 9 6 3 8 0 8 2 arp 120 50 0 32 1 0 1 1 0 8 0 inpcb 336 494 0 484 9 7 2 7 0 8 1 nd6 136 74 0 50 1 0 1 1 0 8 0 kcovpl 48 26 0 18 1 0 1 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 1172 0 716 37 8 29 29 0 8 0 art_table 32 1173 0 716 4 0 4 4 0 8 0 art_node 16 288 0 188 1 0 1 1 0 8 0 sysvmsgpl 40 4 0 2 2 1 1 1 0 8 0 semupl 112 1 0 1 1 1 0 1 0 8 0 semapl 112 7 0 0 1 0 1 1 0 8 0 shmpl 112 3 0 1 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1881 0 344 97 0 97 97 0 8 0 ffsino 272 1881 0 344 103 0 103 103 0 8 0 nchpl 144 2342 0 652 63 0 63 63 0 8 0 uvmvnodes 80 2228 0 0 46 0 46 46 0 8 0 vnodes 216 2228 0 0 124 0 124 124 0 8 0 namei 1024 8629 0 8625 2 1 1 2 0 8 0 percpumem 16 63 0 17 1 0 1 1 0 8 0 kstatmem 264 56 0 34 2 0 2 2 0 8 0 scxspl 216 14245 0 14245 9 7 2 8 1 8 2 plimitpl 152 100 0 76 2 0 2 2 0 8 0 sigapl 424 833 0 780 9 1 8 9 0 8 0 futexpl 64 3083 0 3079 3 2 1 1 0 8 0 knotepl 120 323 0 0 11 1 10 10 0 8 0 kqueuepl 216 116 0 104 2 1 1 2 0 8 0 pipepl 320 180 0 153 4 0 4 4 0 8 0 fdescpl 496 814 0 780 8 1 7 7 0 8 0 filepl 152 3471 0 3227 18 4 14 15 0 8 0 lockfpl 104 77 0 75 1 0 1 1 0 8 0 lockfspl 48 26 0 24 1 0 1 1 0 8 0 sessionpl 144 38 0 22 1 0 1 1 0 8 0 pgrppl 48 66 0 42 1 0 1 1 0 8 0 ucredpl 104 402 0 383 1 0 1 1 0 8 0 zombiepl 144 781 0 780 1 0 1 1 0 8 0 processpl 1160 833 0 780 6 0 6 6 0 8 0 procpl 648 1159 0 1099 7 0 7 7 0 8 1 sosppl 168 6 0 6 3 2 1 1 0 8 1 sockpl 664 787 0 755 12 8 4 9 0 8 1 mcl9k 9216 1 0 0 1 0 1 1 0 8 0 mcl8k 8192 3 0 0 1 0 1 1 0 8 0 mcl4k 4096 2 0 0 1 0 1 1 0 8 0 mcl2k 2048 255 0 0 32 0 32 32 0 8 0 mtagpl 96 2 0 0 1 0 1 1 0 8 0 mbufpl 256 345 0 0 21 0 21 21 0 8 0 bufpl 280 5289 0 90 372 0 372 372 0 8 0 anonpl 24 194498 0 186794 77 4 73 77 0 185 26 amapchunkpl 152 19040 0 18498 40 6 34 39 0 158 12 amappl16 200 4960 0 4707 26 12 14 14 0 8 0 amappl15 192 9 0 9 1 1 0 1 0 8 0 amappl14 184 133 0 123 1 0 1 1 0 8 0 amappl13 176 6 0 6 1 1 0 1 0 8 0 amappl12 168 1668 0 1635 4 1 3 3 0 8 0 amappl11 160 45 0 35 1 0 1 1 0 8 0 amappl10 152 8 0 8 1 1 0 1 0 8 0 amappl9 144 136 0 135 1 0 1 1 0 8 0 amappl8 136 25 0 23 1 0 1 1 0 8 0 amappl7 128 146 0 136 1 0 1 1 0 8 0 amappl6 120 332 0 331 1 0 1 1 0 8 0 amappl5 112 190 0 182 1 0 1 1 0 8 0 amappl4 104 332 0 316 1 0 1 1 0 8 0 amappl3 96 3274 0 3180 3 0 3 3 0 8 0 amappl2 88 1053 0 977 2 0 2 2 0 8 0 amappl1 80 9996 0 9455 14 0 14 14 0 8 0 amappl 88 5323 0 5139 5 0 5 5 0 92 0 dma4096 4096 1 0 1 1 1 0 1 0 8 0 dma1024 1024 1 0 0 1 0 1 1 0 8 0 dma256 256 6 0 6 1 1 0 1 0 8 0 dma128 128 253 0 253 1 1 0 1 0 8 0 dma64 64 6 0 6 1 1 0 1 0 8 0 dma32 32 7 0 7 1 1 0 1 0 8 0 dma16 16 18 0 17 1 0 1 1 0 8 0 aobjpl 72 5 0 1 1 0 1 1 0 8 0 uaddrrnd 24 814 0 780 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 814 0 780 1 0 1 1 0 8 0 vmmpekpl 168 8478 0 8409 4 0 4 4 0 8 0 vmmpepl 168 58659 0 56546 110 4 106 107 0 357 14 vmsppl 440 813 0 780 6 0 6 6 0 8 1 rwobjpl 56 23046 0 19730 50 3 47 47 0 8 0 pdppl 4096 1635 0 1560 171 80 91 115 0 8 16 pvpl 32 32484 0 0 262 0 262 262 0 265 0 pmappl 248 813 0 780 5 1 4 4 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 492 0 106 12 0 12 12 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffffffff8341fff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:393 x86_ipi_handler() at x86_ipi_handler+0xd9 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27 x86_bus_space_io_write_1(3f8,0,6e) at x86_bus_space_io_write_1+0x40 sys/arch/amd64/amd64/bus_space.c:774 comcnputc(800,6e) at comcnputc+0x1ab bus_space_barrier machine/bus.h:481 [inline] comcnputc(800,6e) at comcnputc+0x1ab sys/dev/ic/com.c:1263 cnputc(6e) at cnputc+0x61 sys/dev/cons.c:218 db_putchar(6e) at db_putchar+0x65c sys/ddb/db_output.c:155 kprintf() at kprintf+0x843 db_printf(ffffffff83019ed6) at db_printf+0x9b db_ktrap(6,0,ffff80002a0a8880) at db_ktrap+0x101 db_printtrap sys/arch/amd64/amd64/db_interface.c:98 [inline] db_ktrap(6,0,ffff80002a0a8880) at db_ktrap+0x101 sys/arch/amd64/amd64/db_interface.c:127 kerntrap(ffff80002a0a8880) at kerntrap+0x1dc sys/arch/amd64/amd64/trap.c:323 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b fifo_write(ffff80002a0a8970) at fifo_write+0x6e sys/miscfs/fifofs/fifo_vnops.c:281 VOP_WRITE(fffffd805ad0b390,ffff80002a0a8a08,8,fffffd807f7d3068) at VOP_WRITE+0x102 sys/kern/vfs_vops.c:245 end trace frame: 0xffff80002a0a8aa0, count: 0 ddb{0}> trace x86_ipi_db(ffffffff8341fff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:393 x86_ipi_handler() at x86_ipi_handler+0xd9 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27 x86_bus_space_io_write_1(3f8,0,6e) at x86_bus_space_io_write_1+0x40 sys/arch/amd64/amd64/bus_space.c:774 comcnputc(800,6e) at comcnputc+0x1ab bus_space_barrier machine/bus.h:481 [inline] comcnputc(800,6e) at comcnputc+0x1ab sys/dev/ic/com.c:1263 cnputc(6e) at cnputc+0x61 sys/dev/cons.c:218 db_putchar(6e) at db_putchar+0x65c sys/ddb/db_output.c:155 kprintf() at kprintf+0x843 db_printf(ffffffff83019ed6) at db_printf+0x9b db_ktrap(6,0,ffff80002a0a8880) at db_ktrap+0x101 db_printtrap sys/arch/amd64/amd64/db_interface.c:98 [inline] db_ktrap(6,0,ffff80002a0a8880) at db_ktrap+0x101 sys/arch/amd64/amd64/db_interface.c:127 kerntrap(ffff80002a0a8880) at kerntrap+0x1dc sys/arch/amd64/amd64/trap.c:323 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b fifo_write(ffff80002a0a8970) at fifo_write+0x6e sys/miscfs/fifofs/fifo_vnops.c:281 VOP_WRITE(fffffd805ad0b390,ffff80002a0a8a08,8,fffffd807f7d3068) at VOP_WRITE+0x102 sys/kern/vfs_vops.c:245 vn_rdwr(1,fffffd805ad0b390,ffff80002a027800,100,0,1,d931fa14ae875b6,ffff80002a0a8b30,fffffd805ad0b390,78) at vn_rdwr+0x12d sys/kern/vfs_vnops.c:324 ufs_symlink(ffff80002a0a8b30) at ufs_symlink+0x1ee sys/ufs/ufs/ufs_vnops.c:1309 VOP_SYMLINK(fffffd805ad0b978,ffff80002a0a8cb0,ffff80002a0a8ce0,ffff80002a0a8be0,ffff80002a027800) at VOP_SYMLINK+0x11a sys/kern/vfs_vops.c:432 dosymlinkat(ffff8000371ce028,200010c0,3,200004c0) at dosymlinkat+0x1dd sys/kern/vfs_syscalls.c:1806 syscall(ffff80002a0a8e60) at syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff80002a0a8e60) at syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x4f22df50e40, count: -20 ddb{0}> machine ddbcpu 1 Stopped at proc_trampoline+0xc7: movl $0,%gs:0x680 proc_trampoline() at proc_trampoline+0xc7 end of kernel end trace frame: 0x6f80e06b7130, count: 14 ddb{1}> trace proc_trampoline() at proc_trampoline+0xc7 end of kernel end trace frame: 0x6f80e06b7130, count: -1