uvm_fault(0xfffff1800c01d028, 0x6a5c0c53, 0, 1) -> e kernel: page fault trap, code=0 Stopped at amap_lookups+0x1e0: movl 0x10(%r15),%r14d TID PID UID PRFLAGS PFLAGS CPU COMMAND *191702 39019 32767 0x10 0 1 syz-executor 269117 94766 32767 0x10 0 0 syz-executor amap_lookups(fffff1806bd92860,15000,ffff80003b7d0d10,8) at amap_lookups+0x1e0 amap_chunk_get sys/uvm/uvm_amap.c:118 [inline] amap_lookups(fffff1806bd92860,15000,ffff80003b7d0d10,8) at amap_lookups+0x1e0 sys/uvm/uvm_amap.c:1168 uvm_fault_check(ffff80003b7d0e10,ffff80003b7d0e48,ffff80003b7d0e80,0) at uvm_fault_check+0x8d2 sys/uvm/uvm_fault.c:840 uvm_fault(fffff1800c01d028,94e201c0000,0,1) at uvm_fault+0x106 sys/uvm/uvm_fault.c:627 upageflttrap(ffff80003b7d0fb0,94e201c0f70) at upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192 usertrap(ffff80003b7d0fb0) at usertrap+0x430 sys/arch/amd64/amd64/trap.c:640 recall_trap() at recall_trap+0x8 end of kernel end trace frame: 0x736f860ad490, count: 9 https://www.openbsd.org/ddb.html describes the minimum info required in bug reports. Insufficient info makes it difficult to find and fix bugs. ddb{1}> ddb{1}> set $lines = 0 ddb{1}> set $maxwidth = 0 ddb{1}> show panic *cpu1: uvm_fault(0xfffff1800c01d028, 0x6a5c0c53, 0, 1) -> e ddb{1}> show kasan No such command ddb{1}> trace amap_lookups(fffff1806bd92860,15000,ffff80003b7d0d10,8) at amap_lookups+0x1e0 amap_chunk_get sys/uvm/uvm_amap.c:118 [inline] amap_lookups(fffff1806bd92860,15000,ffff80003b7d0d10,8) at amap_lookups+0x1e0 sys/uvm/uvm_amap.c:1168 uvm_fault_check(ffff80003b7d0e10,ffff80003b7d0e48,ffff80003b7d0e80,0) at uvm_fault_check+0x8d2 sys/uvm/uvm_fault.c:840 uvm_fault(fffff1800c01d028,94e201c0000,0,1) at uvm_fault+0x106 sys/uvm/uvm_fault.c:627 upageflttrap(ffff80003b7d0fb0,94e201c0f70) at upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192 usertrap(ffff80003b7d0fb0) at usertrap+0x430 sys/arch/amd64/amd64/trap.c:640 recall_trap() at recall_trap+0x8 end of kernel end trace frame: 0x736f860ad490, count: -6 ddb{1}> show registers rdi 0x11 rsi 0x20 rbp 0xffff80003b7d0c60 rbx 0x1 rdx 0 rcx 0x1 rax 0xffff800000c43f00 r8 0xffffffff81d97110 uvm_map_inentry_sp r9 0 r10 0 r11 0xebdcfbab668920ab r12 0x1d r13 0 r14 0x20 r15 0x6a5c0c43 rip 0xffffffff82e31e00 amap_lookups+0x1e0 cs 0x8 rflags 0x10202 __ALIGN_SIZE+0xf202 rsp 0xffff80003b7d0bd0 ss 0 amap_lookups+0x1e0: movl 0x10(%r15),%r14d ddb{1}> show proc PROC (syz-executor) tid=191702 pid=39019 tcnt=1 stat=onproc flags process=10 proc=0 runpri=86, usrpri=86, slppri=17, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff800039bb8550,0xffffffff83b42ca8 process=0xffff80003b7d79e0 user=0xffff80003b7cc000, vmspace=0xfffff1800c01d028 estcpu=36, cpticks=0, pctcpu=0.0, user=0, sys=0, intr=0 ddb{1}> ps PID TID PPID UID S PRLAGS PFLAGS WAIT COMMAND *39019 191702 28390 32767 7 0x10 0 syz-executor 26846 143465 14171 32767 3 0x10 0x80 nanoslp syz-executor 26846 250743 14171 32767 3 0x10 0x4000080 ttyin syz-executor 24005 422926 92447 32767 3 0x11 0x80 nanoslp syz-executor 24005 28802 92447 32767 3 0x11 0x4000080 ttyin syz-executor 24005 317742 92447 32767 3 0x11 0x4000080 fsleep syz-executor 98094 173242 19522 32767 3 0x4000010 0x80 nanoslp syz-executor 98094 438007 19522 32767 3 0x4000010 0x4000080 kqpoll syz-executor 98094 438337 19522 32767 3 0x4000010 0x4000080 fsleep syz-executor 490 455313 78414 32767 3 0x10 0x80 nanoslp syz-executor 490 357785 78414 32767 3 0x10 0x4000088 kqpoll syz-executor 490 131013 78414 32767 3 0x10 0x4000080 fsleep syz-executor 490 261987 78414 32767 3 0x10 0x4000080 fsleep syz-executor 71968 215873 43058 32767 3 0x10 0x80 nanoslp syz-executor 71968 110419 43058 32767 3 0x10 0x4000080 lockf syz-executor 71968 236507 43058 32767 3 0x10 0x4000080 fsleep syz-executor 71968 210692 43058 32767 3 0x10 0x4000080 fsleep syz-executor 80178 162477 24761 32767 3 0x10 0x80 nanoslp syz-executor 19522 523278 79841 32767 3 0x10 0x80 nanoslp syz-executor 94766 269117 10932 32767 7 0x10 0 syz-executor 43058 75840 67821 32767 3 0x10 0x80 nanoslp syz-executor 92447 132834 44223 32767 3 0x10 0x80 nanoslp syz-executor 78414 265044 24012 32767 3 0x10 0x80 nanoslp syz-executor 28390 6980 49404 32767 3 0x10 0x80 nanoslp syz-executor 14171 9798 78370 32767 3 0x10 0x80 nanoslp syz-executor 24761 215025 65253 0 3 0x2 0x80 wait syz-executor 79841 62835 65253 0 3 0x2 0x80 wait syz-executor 10932 202078 65253 0 3 0x2 0x80 wait syz-executor 67821 342627 65253 0 3 0x2 0x80 wait syz-executor 44223 256923 65253 0 3 0x2 0x80 wait syz-executor 24012 218061 65253 0 3 0x2 0x80 wait syz-executor 78370 229353 65253 0 3 0x2 0x80 wait syz-executor 49404 522598 65253 0 3 0x2 0x80 wait syz-executor 65253 221445 6012 0 3 0x2 0x80 kqread syz-executor 6012 262431 16172 0 3 0x100002 0x88 sigsusp ksh 16172 504446 53724 0 3 0x10 0x88 kqread sshd-session 53724 380759 56219 0 3 0x12 0x80 kqread sshd-session 50041 23433 1 0 3 0x100003 0x80 ttyin getty 56219 147936 1 0 3 0 0x88 kqread sshd 71560 351134 68359 73 3 0x1100010 0x80 kqread syslogd 68359 169411 1 0 3 0x100002 0x80 sbwait syslogd 26371 289549 1 0 3 0x100000 0x80 kqread resolvd 88776 103231 92528 77 3 0x100012 0x80 kqread dhcpleased 59123 385963 92528 77 3 0x100012 0x80 kqread dhcpleased 92528 63652 1 0 3 0 0x80 kqread dhcpleased 63492 349203 0 0 3 0x14000 0x200 bored smr 3928 281851 0 0 3 0x14000 0x200 pgzero zerothread 99981 187785 0 0 3 0x14000 0x200 aiodoned aiodoned 75016 471509 0 0 3 0x14000 0x200 syncer update 43144 336426 0 0 3 0x14000 0x200 cleaner cleaner 15417 90991 0 0 3 0x14000 0x200 reaper reaper 56301 350672 0 0 3 0x14000 0x200 pgdaemon pagedaemon 56797 49379 0 0 3 0x14000 0x200 bored viomb 73339 310505 0 0 3 0x14000 0x40000200 acpi0 acpi0 1811 333569 0 0 3 0x14000 0x40000200 idle1 98677 328722 0 0 3 0x14000 0x200 bored softnet1 10774 521704 0 0 3 0x14000 0x200 bored softnet0 47431 149918 0 0 3 0x14000 0x200 bored systqmp 88394 313884 0 0 3 0x14000 0x200 bored systq 94276 451056 0 0 3 0x14000 0x200 tmoslp softclockmp 26253 508214 0 0 3 0x14000 0x40000200 tmoslp softclock 51138 504734 0 0 3 0x14000 0x40000200 idle0 1 281600 0 0 3 0x2 0x80 wait init 0 0 -1 0 3 0x10000 0x200 scheduler swapper ddb{1}> show all locks Process 39019 (syz-executor) thread 0xffff80003b7d2a88 (191702) shared rwlock amaplk r = 0 (0xfffff1806e0bd138) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 rw_do_enter_read+0x3e8 sys/kern/kern_rwlock.c:413 #2 uvm_fault_check+0x8a9 sys/uvm/uvm_fault.c:834 #3 uvm_fault+0x106 sys/uvm/uvm_fault.c:627 #4 upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192 #5 usertrap+0x430 sys/arch/amd64/amd64/trap.c:640 #6 recall_trap+0x8 shared rwlock vmmaplk r = 0 (0xfffff1800c01d128) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 rw_do_enter_read+0x3e8 sys/kern/kern_rwlock.c:413 #2 uvmfault_lookup+0x122 sys/uvm/uvm_fault.c:1880 #3 uvm_fault_check+0x4f sys/uvm/uvm_fault.c:693 #4 uvm_fault+0x106 sys/uvm/uvm_fault.c:627 #5 upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192 #6 usertrap+0x430 sys/arch/amd64/amd64/trap.c:640 #7 recall_trap+0x8 Process 94766 (syz-executor) thread 0xffff800045fef770 (269117) exclusive rrwlock inode r = 0 (0xfffff1806da90558) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x419 sys/kern/kern_rwlock.c:320 #2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:621 #3 VOP_LOCK+0xbd sys/kern/vfs_vops.c:527 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:576 #5 vget+0x2a2 sys/kern/vfs_subr.c:692 #6 ufs_ihashget+0x185 sys/ufs/ufs/ufs_ihash.c:98 #7 ffs_vget+0x8c sys/ufs/ffs/ffs_vfsops.c:1203 #8 ufs_lookup+0x1a36 sys/ufs/ufs/ufs_lookup.c:478 #9 VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85 #10 vfs_lookup+0x963 sys/kern/vfs_lookup.c:580 #11 namei+0x7c5 sys/kern/vfs_lookup.c:250 #12 dounlinkat+0xc1 sys/kern/vfs_syscalls.c:1807 #13 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #13 syscall+0xb17 sys/arch/amd64/amd64/trap.c:783 #14 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffff1806da907a8) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x419 sys/kern/kern_rwlock.c:320 #2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:621 #3 VOP_LOCK+0xbd sys/kern/vfs_vops.c:527 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:576 #5 vget+0x2a2 sys/kern/vfs_subr.c:692 #6 cache_lookup+0x351 sys/kern/vfs_cache.c:222 #7 ufs_lookup+0x1e3 sys/ufs/ufs/ufs_lookup.c:160 #8 VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85 #9 vfs_lookup+0x963 sys/kern/vfs_lookup.c:580 #10 namei+0x7c5 sys/kern/vfs_lookup.c:250 #11 dounlinkat+0xc1 sys/kern/vfs_syscalls.c:1807 #12 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #12 syscall+0xb17 sys/arch/amd64/amd64/trap.c:783 #13 Xsyscall+0x128 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 11081 12022K 12034K 166960K 12174 0 pcb 17 12K 12K 166960K 17 0 rtable 239 6K 7K 166960K 357 0 pf 31 16K 16K 166960K 31 0 ifaddr 42 7K 7K 166960K 44 0 ifgroup 50 2K 2K 166960K 50 0 sysctl 1 1K 9K 166960K 6 0 counters 70 37K 37K 166960K 70 0 ioctlops 0 0K 2K 166960K 32 0 iov 0 0K 2K 166960K 4 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1287 81K 81K 166960K 1357 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 1K 166960K 2 0 VM map 2 1K 1K 166960K 2 0 sem 8 0K 0K 166960K 9 0 dirhash 12 2K 2K 166960K 18 0 ACPI 1734 201K 291K 166960K 11964 0 file desc 25 93K 125K 166960K 214 0 proc 58 99K 163K 166960K 506 0 subproc 72 4K 4K 166960K 72 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 1 0K 0K 166960K 20 0 in_multi 103 7K 7K 166960K 105 0 ether_multi 2 0K 0K 166960K 2 0 mrt 0 0K 0K 166960K 5 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 247 1102K 1102K 166960K 247 0 exec 0 0K 1K 166960K 373 0 fusefs mount 1 32K 32K 166960K 1 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 260 169K 179K 166960K 3609 0 UVM aobj 6 2K 2K 166960K 6 0 pinsyscall 46 92K 112K 166960K 1314 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 8 0 NDP 11 0K 2K 166960K 27 0 temp 38 9114K 9120K 166960K 3866 0 kqueue 14 22K 28K 166960K 38 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 28 0 0 1 0 1 1 0 8 0 rtpcb 120 43 0 39 1 0 1 1 0 8 0 rtentry 176 112 0 1 6 0 6 6 0 8 0 unpcb 144 50 0 35 1 0 1 1 0 8 0 syncache 336 4 0 4 1 0 1 1 0 8 1 tcpcb 736 33 0 28 1 0 1 1 0 8 0 arp 136 18 0 0 1 0 1 1 0 8 0 ipq 40 2 0 1 1 0 1 1 0 8 0 ipqe 40 3 0 2 1 0 1 1 0 8 0 inpcb 328 118 0 107 2 0 2 2 0 8 0 nd6 152 25 0 0 1 0 1 1 0 8 0 kcovpl 48 8 0 0 1 0 1 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 467 0 0 30 0 30 30 0 8 0 art_table 40 468 0 0 5 0 5 5 0 8 0 art_node 32 112 0 11 1 0 1 1 0 8 0 sysvmsgpl 40 2 0 0 1 0 1 1 0 8 0 semapl 72 7 0 1 1 0 1 1 0 8 0 shmpl 112 3 0 0 1 0 1 1 0 8 0 dirhash 1024 21 0 4 3 0 3 3 0 8 0 dino2pl 256 1666 0 203 92 0 92 92 0 8 0 ffsino 296 1666 0 203 113 0 113 113 0 8 0 nchpl 144 1962 0 262 64 0 64 64 0 8 0 vnodes 216 1747 0 0 98 0 98 98 0 8 0 namei 1024 8355 0 8355 2 0 2 2 0 8 2 percpumem 16 51 0 0 1 0 1 1 0 8 0 kstatmem 264 25 0 0 2 0 2 2 0 8 0 scxspl 216 6766 0 6766 4 2 2 3 1 8 2 plimitpl 152 78 0 52 2 0 2 2 0 8 1 sigapl 424 512 0 459 7 0 7 7 0 8 0 knotepl 120 366 0 0 12 0 12 12 0 8 0 kqueuepl 224 38 0 27 1 0 1 1 0 8 0 pipepl 344 125 0 98 3 0 3 3 0 8 0 fdescpl 528 496 0 459 4 0 4 4 0 8 0 filepl 160 2177 0 1955 13 0 13 13 0 8 2 lockfpl 104 75 0 68 1 0 1 1 0 8 0 lockfspl 48 19 0 13 1 0 1 1 0 8 0 sessionpl 144 26 0 9 1 0 1 1 0 8 0 pgrppl 48 34 0 9 1 0 1 1 0 8 0 ucredpl 104 329 0 310 1 0 1 1 0 8 0 zombiepl 144 460 0 459 1 0 1 1 0 8 0 processpl 1232 512 0 459 5 0 5 5 0 8 0 procpl 664 641 0 577 6 0 6 6 0 8 0 sosppl 176 2 0 2 1 0 1 1 0 8 1 sockpl 752 211 0 181 4 0 4 4 0 8 0 mcl64k 65536 2 0 0 1 0 1 1 0 8 0 mcl8k 8192 3 0 0 1 0 1 1 0 8 0 mcl4k 4096 113 0 0 15 0 15 15 0 8 0 mcl2k 2048 13 0 0 2 0 2 2 0 8 0 mextrefs 64 12 0 0 1 0 1 1 0 8 0 mtagpl 96 1 0 0 1 0 1 1 0 8 0 mbufpl 256 219 0 0 14 0 14 14 0 8 0 bufpl 272 2389 0 102 153 0 153 153 0 8 0 anonpl 32 8970 0 0 73 0 73 73 0 247 0 amapchunkpl 152 10522 0 9817 34 0 34 34 0 158 5 amappl16 200 1768 0 1747 15 0 15 15 0 8 10 amappl15 192 12 0 12 2 2 0 1 0 8 0 amappl14 184 434 0 433 1 0 1 1 0 8 0 amappl13 176 115 0 105 1 0 1 1 0 8 0 amappl12 168 732 0 696 2 0 2 2 0 8 0 amappl11 160 7 0 6 1 0 1 1 0 8 0 amappl10 152 57 0 47 1 0 1 1 0 8 0 amappl9 144 292 0 292 1 1 0 1 0 8 0 amappl8 136 94 0 93 1 0 1 1 0 8 0 amappl7 128 139 0 128 1 0 1 1 0 8 0 amappl6 120 152 0 150 1 0 1 1 0 8 0 amappl5 112 90 0 82 1 0 1 1 0 8 0 amappl4 104 266 0 249 1 0 1 1 0 8 0 amappl3 96 1890 0 1755 5 1 4 4 0 8 0 amappl2 88 520 0 468 2 0 2 2 0 8 0 amappl1 80 10482 0 9898 16 1 15 15 0 8 0 amappl 88 2905 0 2710 5 0 5 5 0 92 0 uvmvnodes 80 104 0 0 3 0 3 3 0 8 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 0 1 0 1 1 0 8 0 uaddrrnd 24 496 0 459 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 496 0 459 1 0 1 1 0 8 0 vmmpekpl 168 5956 0 5924 2 0 2 2 0 8 0 vmmpepl 168 40519 0 38450 100 0 100 100 0 357 6 vmsppl 488 495 0 459 7 1 6 6 0 8 0 rwobjpl 80 14913 0 13945 24 0 24 24 0 8 1 pdppl 4096 999 0 918 111 28 83 97 0 8 2 pvpl 32 18280 0 0 148 0 148 148 0 265 0 pmappl 256 495 0 459 4 1 3 3 0 8 0 extentpl 40 46 0 28 1 0 1 1 0 8 0 phpool 112 434 0 31 12 0 12 12 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffffffff83984ff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:394 x86_ipi_handler() at x86_ipi_handler+0xd9 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27 __mp_lock(ffffffff83a3e980) at __mp_lock+0x199 __mp_lock_spin sys/kern/kern_lock.c:142 [inline] __mp_lock(ffffffff83a3e980) at __mp_lock+0x199 sys/kern/kern_lock.c:173 softintr_dispatch(0) at softintr_dispatch+0x125 sys/kern/kern_softintr.c:83 dosoftint(0) at dosoftint+0x54 sys/arch/amd64/amd64/intr.c:862 Xsoftclock() at Xsoftclock+0x27 __mp_lock(ffffffff83a3e980) at __mp_lock+0x19e __mp_lock_spin sys/kern/kern_lock.c:142 [inline] __mp_lock(ffffffff83a3e980) at __mp_lock+0x19e sys/kern/kern_lock.c:173 __mp_acquire_count(ffffffff83a3e980,1) at __mp_acquire_count+0x58 sys/kern/kern_lock.c:-1 sleep_finish(ffffffffffffffff,1) at sleep_finish+0x2d8 sys/kern/kern_synch.c:369 biowait(fffff1806e036bc0) at biowait+0xc6 sys/kern/vfs_bio.c:1110 bwrite(fffff1806e036bc0) at bwrite+0x359 sys/kern/vfs_bio.c:625 ffs_update(fffff1806da904b8,1) at ffs_update+0x2fe sys/ufs/ffs/ffs_inode.c:111 ufs_inactive(ffff800039bb17e0) at ufs_inactive+0x202 sys/ufs/ufs/ufs_inode.c:84 end trace frame: 0xffff800039bb1820, count: 0 ddb{0}> trace x86_ipi_db(ffffffff83984ff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:394 x86_ipi_handler() at x86_ipi_handler+0xd9 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27 __mp_lock(ffffffff83a3e980) at __mp_lock+0x199 __mp_lock_spin sys/kern/kern_lock.c:142 [inline] __mp_lock(ffffffff83a3e980) at __mp_lock+0x199 sys/kern/kern_lock.c:173 softintr_dispatch(0) at softintr_dispatch+0x125 sys/kern/kern_softintr.c:83 dosoftint(0) at dosoftint+0x54 sys/arch/amd64/amd64/intr.c:862 Xsoftclock() at Xsoftclock+0x27 __mp_lock(ffffffff83a3e980) at __mp_lock+0x19e __mp_lock_spin sys/kern/kern_lock.c:142 [inline] __mp_lock(ffffffff83a3e980) at __mp_lock+0x19e sys/kern/kern_lock.c:173 __mp_acquire_count(ffffffff83a3e980,1) at __mp_acquire_count+0x58 sys/kern/kern_lock.c:-1 sleep_finish(ffffffffffffffff,1) at sleep_finish+0x2d8 sys/kern/kern_synch.c:369 biowait(fffff1806e036bc0) at biowait+0xc6 sys/kern/vfs_bio.c:1110 bwrite(fffff1806e036bc0) at bwrite+0x359 sys/kern/vfs_bio.c:625 ffs_update(fffff1806da904b8,1) at ffs_update+0x2fe sys/ufs/ffs/ffs_inode.c:111 ufs_inactive(ffff800039bb17e0) at ufs_inactive+0x202 sys/ufs/ufs/ufs_inode.c:84 VOP_INACTIVE(fffff1805ed5ecd0,ffff800045fef770) at VOP_INACTIVE+0x104 sys/kern/vfs_vops.c:498 vput(fffff1805ed5ecd0) at vput+0xe5 sys/kern/vfs_subr.c:795 VOP_REMOVE(fffff1805ed5eb20,fffff1805ed5ecd0,ffff800039bb1948) at VOP_REMOVE+0x199 sys/kern/vfs_vops.c:336 dounlinkat(ffff800045fef770,ffffff9c,70653c783890,0) at dounlinkat+0x1c4 sys/kern/vfs_syscalls.c:1843 syscall(ffff800039bb1ac0) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff800039bb1ac0) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x70653c783d40, count: -20 ddb{0}> machine ddbcpu 1 Stopped at amap_lookups+0x1e0: movl 0x10(%r15),%r14d amap_lookups(fffff1806bd92860,15000,ffff80003b7d0d10,8) at amap_lookups+0x1e0 amap_chunk_get sys/uvm/uvm_amap.c:118 [inline] amap_lookups(fffff1806bd92860,15000,ffff80003b7d0d10,8) at amap_lookups+0x1e0 sys/uvm/uvm_amap.c:1168 uvm_fault_check(ffff80003b7d0e10,ffff80003b7d0e48,ffff80003b7d0e80,0) at uvm_fault_check+0x8d2 sys/uvm/uvm_fault.c:840 uvm_fault(fffff1800c01d028,94e201c0000,0,1) at uvm_fault+0x106 sys/uvm/uvm_fault.c:627 upageflttrap(ffff80003b7d0fb0,94e201c0f70) at upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192 usertrap(ffff80003b7d0fb0) at usertrap+0x430 sys/arch/amd64/amd64/trap.c:640 recall_trap() at recall_trap+0x8 end of kernel end trace frame: 0x736f860ad490, count: 9 ddb{1}> trace amap_lookups(fffff1806bd92860,15000,ffff80003b7d0d10,8) at amap_lookups+0x1e0 amap_chunk_get sys/uvm/uvm_amap.c:118 [inline] amap_lookups(fffff1806bd92860,15000,ffff80003b7d0d10,8) at amap_lookups+0x1e0 sys/uvm/uvm_amap.c:1168 uvm_fault_check(ffff80003b7d0e10,ffff80003b7d0e48,ffff80003b7d0e80,0) at uvm_fault_check+0x8d2 sys/uvm/uvm_fault.c:840 uvm_fault(fffff1800c01d028,94e201c0000,0,1) at uvm_fault+0x106 sys/uvm/uvm_fault.c:627 upageflttrap(ffff80003b7d0fb0,94e201c0f70) at upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192 usertrap(ffff80003b7d0fb0) at usertrap+0x430 sys/arch/amd64/amd64/trap.c:640 recall_trap() at recall_trap+0x8 end of kernel end trace frame: 0x736f860ad490, count: -6