panic: acquiring blockable sleep lock with spinlock or critical section held (rwlock) vmmaplk Stopped at db_enter+0x25: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND *359783 57706 0 0x14000 0x200 1 reaper 373133 69792 0 0x14000 0x200 0 softnet0 db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff8306ac73) at panic+0x1e5 sys/kern/subr_prf.c:198 witness_checkorder(ffffffff83592380,1,0) at witness_checkorder+0x1197 witness_debugger sys/kern/subr_witness.c:2518 [inline] witness_checkorder(ffffffff83592380,1,0) at witness_checkorder+0x1197 sys/kern/subr_witness.c:780 rw_enter_read(ffffffff83592370) at rw_enter_read+0xab sys/kern/kern_rwlock.c:112 uvmfault_lookup(ffff800029fe5930,0) at uvmfault_lookup+0x122 sys/uvm/uvm_fault.c:1785 uvm_fault_check(ffff800029fe5930,ffff800029fe5968,ffff800029fe5990) at uvm_fault_check+0x47 sys/uvm/uvm_fault.c:672 uvm_fault(ffffffff83592290,7f83c45b9000,0,2) at uvm_fault+0x112 sys/uvm/uvm_fault.c:600 kpageflttrap(ffff800029fe5ad0,7f83c45b9be0) at kpageflttrap+0x2d0 sys/arch/amd64/amd64/trap.c:279 kerntrap(ffff800029fe5ad0) at kerntrap+0x14a sys/arch/amd64/amd64/trap.c:332 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b pmap_page_remove(fffffd8007857160) at pmap_page_remove+0x45d _atomic_swap_64 machine/atomic.h:117 [inline] pmap_page_remove(fffffd8007857160) at pmap_page_remove+0x45d sys/arch/amd64/amd64/pmap.c:2005 uvm_anfree_list(fffffd805e205a80,0) at uvm_anfree_list+0xd6 amap_wipeout(fffffd806bec46d0) at amap_wipeout+0x248 sys/uvm/uvm_amap.c:502 uvm_unmap_detach(ffff800029fe5d00,0) at uvm_unmap_detach+0x8a sys/uvm/uvm_map.c:1353 end trace frame: 0xffff800029fe5d40, count: 0 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: acquiring blockable sleep lock with spinlock or critical section held (rwlock) vmmaplk ddb{1}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff8306ac73) at panic+0x1e5 sys/kern/subr_prf.c:198 witness_checkorder(ffffffff83592380,1,0) at witness_checkorder+0x1197 witness_debugger sys/kern/subr_witness.c:2518 [inline] witness_checkorder(ffffffff83592380,1,0) at witness_checkorder+0x1197 sys/kern/subr_witness.c:780 rw_enter_read(ffffffff83592370) at rw_enter_read+0xab sys/kern/kern_rwlock.c:112 uvmfault_lookup(ffff800029fe5930,0) at uvmfault_lookup+0x122 sys/uvm/uvm_fault.c:1785 uvm_fault_check(ffff800029fe5930,ffff800029fe5968,ffff800029fe5990) at uvm_fault_check+0x47 sys/uvm/uvm_fault.c:672 uvm_fault(ffffffff83592290,7f83c45b9000,0,2) at uvm_fault+0x112 sys/uvm/uvm_fault.c:600 kpageflttrap(ffff800029fe5ad0,7f83c45b9be0) at kpageflttrap+0x2d0 sys/arch/amd64/amd64/trap.c:279 kerntrap(ffff800029fe5ad0) at kerntrap+0x14a sys/arch/amd64/amd64/trap.c:332 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b pmap_page_remove(fffffd8007857160) at pmap_page_remove+0x45d _atomic_swap_64 machine/atomic.h:117 [inline] pmap_page_remove(fffffd8007857160) at pmap_page_remove+0x45d sys/arch/amd64/amd64/pmap.c:2005 uvm_anfree_list(fffffd805e205a80,0) at uvm_anfree_list+0xd6 amap_wipeout(fffffd806bec46d0) at amap_wipeout+0x248 sys/uvm/uvm_amap.c:502 uvm_unmap_detach(ffff800029fe5d00,0) at uvm_unmap_detach+0x8a sys/uvm/uvm_map.c:1353 uvm_map_teardown(fffffd806c3d1dd8) at uvm_map_teardown+0x35e sys/uvm/uvm_map.c:2518 uvmspace_free(fffffd806c3d1dd8) at uvmspace_free+0xcd sys/uvm/uvm_map.c:3422 reaper(ffff800029fd91c0) at reaper+0x256 sys/kern/kern_exit.c:483 end trace frame: 0x0, count: -17 ddb{1}> show registers rdi 0 rsi 0x1 rbp 0xffff800029fe5590 rbx 0xffff800029b7cd87 rdx 0 rcx 0xffff800029fd91c0 rax 0xffff800029b7bff0 r8 0x101010101010101 r9 0x8080808080808080 r10 0xae62f7964a7b690c r11 0xb5f7a7f5f7558c97 r12 0xffff800029b7cb88 r13 0 r14 0 r15 0x1 rip 0xffffffff82b2b545 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff800029fe5580 ss 0x10 db_enter+0x25: addq $0x8,%rsp ddb{1}> show proc PROC (reaper) tid=359783 pid=57706 tcnt=1 stat=onproc flags process=14000 proc=200 runpri=82, usrpri=84, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff800029fd9448,0xffff800029fd8f48 process=0xffff800029feb1e0 user=0xffff800029fe0000, vmspace=0xffffffff83592290 estcpu=34, cpticks=6, pctcpu=32.20, user=0, sys=4402, intr=2 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 40490 318997 64617 0 2 0x8100000 sh 64617 60990 6380 0 3 0x810008a sigsusp sh 6380 380793 80336 0 3 0x8000082 wait syz-executor 73276 463718 80336 0 3 0x8000082 wait syz-executor 77010 188805 80336 0 3 0x8000082 piperd syz-executor 52783 256401 80336 0 3 0x8000082 piperd syz-executor 16276 227157 80336 0 3 0x8000082 wait syz-executor 41838 421821 80336 0 3 0x8000082 piperd syz-executor 84875 157096 80336 0 3 0x8000082 wait syz-executor 80336 72052 2078 0 2 0x8000002 syz-executor 2078 364890 67793 0 3 0x810008a sigsusp ksh 67793 72809 4278 0 3 0x18000098 kqread sshd-session 4278 86103 64504 0 3 0x18000092 kqread sshd-session 91624 148062 1 0 3 0x18100083 ttyin getty 64504 497486 1 0 3 0x18000088 kqread sshd 50552 416753 93701 74 3 0x19100092 bpf pflogd 93701 110227 1 0 3 0x18000080 sbwait pflogd 33494 470389 28376 73 3 0x19100010 biowait syslogd 28376 325216 1 0 3 0x18100082 sbwait syslogd 57552 54039 1 0 3 0x18100080 kqread resolvd 57228 20671 73909 77 3 0x18100092 kqread dhcpleased 30177 196662 73909 77 3 0x18100092 kqread dhcpleased 73909 389971 1 0 3 0x18000080 kqread dhcpleased 4405 474039 0 0 3 0x14200 bored smr 11806 174887 0 0 2 0x14200 zerothread 38134 136915 0 0 3 0x14200 aiodoned aiodoned 32336 396463 0 0 3 0x14200 syncer update 14663 130517 0 0 3 0x14200 cleaner cleaner *57706 359783 0 0 7 0x14200 reaper 90782 189515 0 0 3 0x14200 pgdaemon pagedaemon 79719 420151 0 0 3 0x14200 bored viomb 65308 376654 0 0 3 0x40014200 acpi0 acpi0 54751 289619 0 0 3 0x40014200 idle1 20517 507218 0 0 3 0x14200 bored softnet3 59984 482332 0 0 3 0x14200 bored softnet2 70309 383631 0 0 3 0x14200 bored softnet1 69792 373133 0 0 7 0x14200 softnet0 56102 151162 0 0 3 0x14200 bored systqmp 12434 277805 0 0 3 0x14200 bored systq 25442 420455 0 0 3 0x14200 tmoslp softclockmp 92512 141099 0 0 3 0x40014200 tmoslp softclock 90032 116390 0 0 3 0x40014200 idle0 1 474211 0 0 3 0x8000082 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks CPU 1: exclusive mutex &pmap->pm_mtx r = 0 (0xfffffd806bdc8118) #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_page_remove+0xcd rcr3 machine/cpufunc.h:139 [inline] #3 pmap_page_remove+0xcd pmap_map_ptes sys/arch/amd64/amd64/pmap.c:430 [inline] #3 pmap_page_remove+0xcd sys/arch/amd64/amd64/pmap.c:1965 #4 uvm_anfree_list+0xd6 #5 amap_wipeout+0x248 sys/uvm/uvm_amap.c:502 #6 uvm_unmap_detach+0x8a sys/uvm/uvm_map.c:1353 #7 uvm_map_teardown+0x35e sys/uvm/uvm_map.c:2518 #8 uvmspace_free+0xcd sys/uvm/uvm_map.c:3422 #9 reaper+0x256 sys/kern/kern_exit.c:483 #10 proc_trampoline+0x10 Process 80336 (syz-executor) thread 0xffff80002a0407b0 (72052) exclusive rwlock netlock r = 0 (0xffffffff8344c8e0) #0 witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5b8 sys/kern/subr_witness.c:1151 #1 sosend+0x7e3 sb_mtx_lock sys/sys/socketvar.h:218 [inline] #1 sosend+0x7e3 sys/kern/uipc_socket.c:743 #2 dofilewritev+0x23c sys/kern/sys_generic.c:380 #3 sys_write+0xa2 sys/kern/sys_generic.c:300 #4 syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline] #4 syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 #5 Xsyscall+0x128 exclusive rwlock sbufsnd r = 0 (0xffff800010fdd148) #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 sblock+0xb7 sys/kern/uipc_socket2.c:549 #3 sosend+0x2ff sys/kern/uipc_socket.c:681 #4 dofilewritev+0x23c sys/kern/sys_generic.c:380 #5 sys_write+0xa2 sys/kern/sys_generic.c:300 #6 syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline] #6 syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 #7 Xsyscall+0x128 Process 33494 (syslogd) thread 0xffff8000ffffd6d8 (470389) exclusive rrwlock inode r = 0 (0xfffffd806e4a6810) #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:2927 #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 Process 57706 (reaper) thread 0xffff800029fd91c0 (359783) exclusive rwlock amaplk r = 0 (0xfffffd805b58bbb0) #0 witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5b8 sys/kern/subr_witness.c:1151 #1 amap_unref+0x38 sys/uvm/uvm_amap.c:1360 #2 uvm_unmap_detach+0x8a sys/uvm/uvm_map.c:1353 #3 uvm_map_teardown+0x35e sys/uvm/uvm_map.c:2518 #4 uvmspace_free+0xcd sys/uvm/uvm_map.c:3422 #5 reaper+0x256 sys/kern/kern_exit.c:483 #6 proc_trampoline+0x10 exclusive mutex &pmap->pm_mtx r = 0 (0xfffffd806bdc8118) #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_page_remove+0xcd rcr3 machine/cpufunc.h:139 [inline] #3 pmap_page_remove+0xcd pmap_map_ptes sys/arch/amd64/amd64/pmap.c:430 [inline] #3 pmap_page_remove+0xcd sys/arch/amd64/amd64/pmap.c:1965 #4 uvm_anfree_list+0xd6 #5 amap_wipeout+0x248 sys/uvm/uvm_amap.c:502 #6 uvm_unmap_detach+0x8a sys/uvm/uvm_map.c:1353 #7 uvm_map_teardown+0x35e sys/uvm/uvm_map.c:2518 #8 uvmspace_free+0xcd sys/uvm/uvm_map.c:3422 #9 reaper+0x256 sys/kern/kern_exit.c:483 #10 proc_trampoline+0x10 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10178 10150K 10349K 166960K 11355 0 pcb 17 12K 12K 166960K 34 0 rtable 191 5K 7K 166960K 596 0 pf 30 16K 18K 166960K 62 0 ifaddr 35 6K 7K 166960K 79 0 ifgroup 47 2K 2K 166960K 87 0 counters 60 35K 36K 166960K 80 0 ioctlops 0 0K 4K 166960K 1530 0 iov 0 0K 18K 166960K 8 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1434 90K 91K 166960K 1645 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 11 1K 1K 166960K 11 0 dirhash 12 2K 2K 166960K 12 0 ACPI 1697 195K 286K 166960K 12548 0 file desc 11 37K 93K 166960K 307 0 sigio 0 0K 0K 166960K 1 0 proc 69 91K 140K 166960K 764 0 subproc 91 5K 6K 166960K 221 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 6 0 in_multi 77 5K 7K 166960K 191 0 ether_multi 1 0K 0K 166960K 1 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 49 228K 228K 166960K 49 0 exec 0 0K 1K 166960K 466 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 199 72K 93K 166960K 3841 0 UVM aobj 5 2K 2K 166960K 5 0 pinsyscall 36 72K 105K 166960K 1581 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 6 0 NDP 10 0K 2K 166960K 52 0 temp 34 6814K 6886K 166960K 6490 0 kqueue 13 20K 24K 166960K 30 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 50 0 47 1 0 1 1 0 8 0 rtentry 112 199 0 112 5 1 4 4 0 8 0 unpcb 144 145 0 128 4 3 1 4 0 8 0 syncache 336 3 0 3 1 1 0 1 0 8 0 tcpcb 808 31 0 27 2 1 1 2 0 8 0 arp 120 34 0 20 1 0 1 1 0 8 0 inpcb 336 159 0 152 3 2 1 2 0 8 0 nd6 136 48 0 31 1 0 1 1 0 8 0 kcovpl 48 17 0 10 1 0 1 1 0 8 0 pfosfp 40 1428 0 1005 5 0 5 5 0 8 0 pfosfpen 112 1428 0 714 21 0 21 21 0 8 0 pfstitem 24 29 0 20 1 0 1 1 0 8 0 pfstkey 128 29 0 20 1 0 1 1 0 8 0 pfstate 376 28 0 19 3 0 3 3 0 8 0 pfrule 1344 21 0 16 2 1 1 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 808 0 441 29 1 28 29 0 8 0 art_table 32 809 0 441 4 0 4 4 0 8 0 art_node 16 198 0 119 1 0 1 1 0 8 0 semapl 112 9 0 0 1 0 1 1 0 8 0 shmpl 112 2 0 0 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1653 0 130 96 0 96 96 0 8 0 ffsino 272 1653 0 130 102 0 102 102 0 8 0 nchpl 144 1909 0 218 63 0 63 63 0 8 0 uvmvnodes 80 2015 0 0 42 0 42 42 0 8 0 vnodes 216 2015 0 0 112 0 112 112 0 8 0 namei 1024 6921 0 6921 2 1 1 1 0 8 1 percpumem 16 54 0 10 1 0 1 1 0 8 0 kstatmem 264 40 0 20 2 0 2 2 0 8 0 scxspl 216 8061 0 8060 3 2 1 2 1 8 0 plimitpl 152 176 0 159 1 0 1 1 0 8 0 sigapl 424 587 0 540 7 1 6 7 0 8 0 futexpl 64 967 0 967 2 2 0 1 0 8 0 knotepl 120 68 0 0 3 0 3 3 0 8 0 kqueuepl 216 42 0 33 1 0 1 1 0 8 0 pipepl 320 140 0 113 3 0 3 3 0 8 0 fdescpl 496 569 0 544 6 1 5 5 0 8 0 filepl 152 2354 0 2133 15 4 11 13 0 8 0 lockfpl 104 21 0 19 1 0 1 1 0 8 0 lockfspl 48 10 0 8 1 0 1 1 0 8 0 sessionpl 144 31 0 22 1 0 1 1 0 8 0 pgrppl 48 48 0 31 1 0 1 1 0 8 0 ucredpl 104 132 0 119 1 0 1 1 0 8 0 zombiepl 144 544 0 540 1 0 1 1 0 8 0 processpl 1160 587 0 540 5 1 4 5 0 8 0 procpl 648 682 0 627 6 0 6 6 0 8 0 sockpl 664 355 0 328 10 7 3 9 0 8 0 mcl64k 65536 1 0 0 1 0 1 1 0 8 0 mcl8k 8192 4 0 0 1 0 1 1 0 8 0 mcl4k 4096 2 0 0 1 0 1 1 0 8 0 mcl2k 2048 220 0 0 28 0 28 28 0 8 0 mtagpl 96 2 0 0 1 0 1 1 0 8 0 mbufpl 256 221 0 0 14 0 14 14 0 8 0 bufpl 280 5964 0 100 419 0 419 419 0 8 0 anonpl 24 155445 0 152235 86 8 78 80 0 185 48 amapchunkpl 152 12451 0 12077 41 2 39 41 0 158 16 amappl16 200 3480 0 3472 14 12 2 14 0 8 1 amappl15 192 7 0 7 1 1 0 1 0 8 0 amappl14 184 133 0 121 1 0 1 1 0 8 0 amappl13 176 6 0 6 1 1 0 1 0 8 0 amappl12 168 1337 0 1308 3 1 2 2 0 8 0 amappl11 160 53 0 39 1 0 1 1 0 8 0 amappl10 152 11 0 11 1 1 0 1 0 8 0 amappl9 144 161 0 161 1 1 0 1 0 8 0 amappl8 136 81 0 79 1 0 1 1 0 8 0 amappl7 128 120 0 108 1 0 1 1 0 8 0 amappl6 120 243 0 239 1 0 1 1 0 8 0 amappl5 112 167 0 156 1 0 1 1 0 8 0 amappl4 104 341 0 322 1 0 1 1 0 8 0 amappl3 96 2276 0 2190 4 0 4 4 0 8 0 amappl2 88 720 0 656 2 0 2 2 0 8 0 amappl1 80 8757 0 8182 15 2 13 15 0 8 0 amappl 88 3415 0 3278 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 4 0 0 1 0 1 1 0 8 0 uaddrrnd 24 569 0 541 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 569 0 541 1 0 1 1 0 8 0 vmmpekpl 168 6892 0 6844 3 0 3 3 0 8 0 vmmpepl 168 43421 0 41780 94 9 85 94 0 357 2 vmsppl 440 568 0 540 6 2 4 5 0 8 0 rwobjpl 56 18398 0 15473 44 1 43 43 0 8 0 pdppl 4096 1145 0 1080 111 40 71 85 0 8 6 pvpl 32 44927 0 0 365 2 363 363 0 265 0 pmappl 248 568 0 540 3 0 3 3 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 398 0 48 11 0 11 11 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffffffff834e5ff0) 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 __mp_lock(ffffffff8362e6e0) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff8362e6e0) at __mp_lock+0x192 sys/kern/kern_lock.c:144 intr_handler(ffff800029fb3cb0,ffff80000006bc00) at intr_handler+0xe1 sys/arch/amd64/amd64/intr.c:553 Xintr_ioapic_edge23_untramp() at Xintr_ioapic_edge23_untramp+0x18f __mp_lock(ffffffff8362e6e0) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff8362e6e0) at __mp_lock+0x192 sys/kern/kern_lock.c:144 if_qstart_compat(ffff8000001a0580) at if_qstart_compat+0x27 sys/net/if.c:716 ifq_serialize(ffff8000001a0580,ffff8000001a06a8) at ifq_serialize+0x1ba taskq_thread(ffff80000002c000) at taskq_thread+0x157 sys/kern/kern_task.c:448 end trace frame: 0x0, count: 5 ddb{0}> trace x86_ipi_db(ffffffff834e5ff0) 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 __mp_lock(ffffffff8362e6e0) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff8362e6e0) at __mp_lock+0x192 sys/kern/kern_lock.c:144 intr_handler(ffff800029fb3cb0,ffff80000006bc00) at intr_handler+0xe1 sys/arch/amd64/amd64/intr.c:553 Xintr_ioapic_edge23_untramp() at Xintr_ioapic_edge23_untramp+0x18f __mp_lock(ffffffff8362e6e0) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff8362e6e0) at __mp_lock+0x192 sys/kern/kern_lock.c:144 if_qstart_compat(ffff8000001a0580) at if_qstart_compat+0x27 sys/net/if.c:716 ifq_serialize(ffff8000001a0580,ffff8000001a06a8) at ifq_serialize+0x1ba taskq_thread(ffff80000002c000) at taskq_thread+0x157 sys/kern/kern_task.c:448 end trace frame: 0x0, count: -10 ddb{0}> machine ddbcpu 1 Stopped at db_enter+0x25: addq $0x8,%rsp db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff8306ac73) at panic+0x1e5 sys/kern/subr_prf.c:198 witness_checkorder(ffffffff83592380,1,0) at witness_checkorder+0x1197 witness_debugger sys/kern/subr_witness.c:2518 [inline] witness_checkorder(ffffffff83592380,1,0) at witness_checkorder+0x1197 sys/kern/subr_witness.c:780 rw_enter_read(ffffffff83592370) at rw_enter_read+0xab sys/kern/kern_rwlock.c:112 uvmfault_lookup(ffff800029fe5930,0) at uvmfault_lookup+0x122 sys/uvm/uvm_fault.c:1785 uvm_fault_check(ffff800029fe5930,ffff800029fe5968,ffff800029fe5990) at uvm_fault_check+0x47 sys/uvm/uvm_fault.c:672 uvm_fault(ffffffff83592290,7f83c45b9000,0,2) at uvm_fault+0x112 sys/uvm/uvm_fault.c:600 kpageflttrap(ffff800029fe5ad0,7f83c45b9be0) at kpageflttrap+0x2d0 sys/arch/amd64/amd64/trap.c:279 kerntrap(ffff800029fe5ad0) at kerntrap+0x14a sys/arch/amd64/amd64/trap.c:332 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b pmap_page_remove(fffffd8007857160) at pmap_page_remove+0x45d _atomic_swap_64 machine/atomic.h:117 [inline] pmap_page_remove(fffffd8007857160) at pmap_page_remove+0x45d sys/arch/amd64/amd64/pmap.c:2005 uvm_anfree_list(fffffd805e205a80,0) at uvm_anfree_list+0xd6 amap_wipeout(fffffd806bec46d0) at amap_wipeout+0x248 sys/uvm/uvm_amap.c:502 uvm_unmap_detach(ffff800029fe5d00,0) at uvm_unmap_detach+0x8a sys/uvm/uvm_map.c:1353 end trace frame: 0xffff800029fe5d40, count: 0 ddb{1}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff8306ac73) at panic+0x1e5 sys/kern/subr_prf.c:198 witness_checkorder(ffffffff83592380,1,0) at witness_checkorder+0x1197 witness_debugger sys/kern/subr_witness.c:2518 [inline] witness_checkorder(ffffffff83592380,1,0) at witness_checkorder+0x1197 sys/kern/subr_witness.c:780 rw_enter_read(ffffffff83592370) at rw_enter_read+0xab sys/kern/kern_rwlock.c:112 uvmfault_lookup(ffff800029fe5930,0) at uvmfault_lookup+0x122 sys/uvm/uvm_fault.c:1785 uvm_fault_check(ffff800029fe5930,ffff800029fe5968,ffff800029fe5990) at uvm_fault_check+0x47 sys/uvm/uvm_fault.c:672 uvm_fault(ffffffff83592290,7f83c45b9000,0,2) at uvm_fault+0x112 sys/uvm/uvm_fault.c:600 kpageflttrap(ffff800029fe5ad0,7f83c45b9be0) at kpageflttrap+0x2d0 sys/arch/amd64/amd64/trap.c:279 kerntrap(ffff800029fe5ad0) at kerntrap+0x14a sys/arch/amd64/amd64/trap.c:332 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b pmap_page_remove(fffffd8007857160) at pmap_page_remove+0x45d _atomic_swap_64 machine/atomic.h:117 [inline] pmap_page_remove(fffffd8007857160) at pmap_page_remove+0x45d sys/arch/amd64/amd64/pmap.c:2005 uvm_anfree_list(fffffd805e205a80,0) at uvm_anfree_list+0xd6 amap_wipeout(fffffd806bec46d0) at amap_wipeout+0x248 sys/uvm/uvm_amap.c:502 uvm_unmap_detach(ffff800029fe5d00,0) at uvm_unmap_detach+0x8a sys/uvm/uvm_map.c:1353 uvm_map_teardown(fffffd806c3d1dd8) at uvm_map_teardown+0x35e sys/uvm/uvm_map.c:2518 uvmspace_free(fffffd806c3d1dd8) at uvmspace_free+0xcd sys/uvm/uvm_map.c:3422 reaper(ffff800029fd91c0) at reaper+0x256 sys/kern/kern_exit.c:483 end trace frame: 0x0, count: -17