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 365595 61069 73 0x1100010 0 0 syslogd *254545 62087 0 0x14000 0x200 1 reaper db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff8306af0f) at panic+0x1e5 sys/kern/subr_prf.c:198 witness_checkorder(ffffffff8353f908,1,0) at witness_checkorder+0x1197 witness_debugger sys/kern/subr_witness.c:2518 [inline] witness_checkorder(ffffffff8353f908,1,0) at witness_checkorder+0x1197 sys/kern/subr_witness.c:780 rw_enter_read(ffffffff8353f8f8) at rw_enter_read+0xab sys/kern/kern_rwlock.c:112 uvmfault_lookup(ffff800029fe58f0,0) at uvmfault_lookup+0x122 sys/uvm/uvm_fault.c:1785 uvm_fault_check(ffff800029fe58f0,ffff800029fe5928,ffff800029fe5950) at uvm_fault_check+0x47 sys/uvm/uvm_fault.c:672 uvm_fault(ffffffff8353f818,7f85928c8000,0,2) at uvm_fault+0x112 sys/uvm/uvm_fault.c:600 kpageflttrap(ffff800029fe5a90,7f85928c8a70) at kpageflttrap+0x2d0 sys/arch/amd64/amd64/trap.c:279 kerntrap(ffff800029fe5a90) at kerntrap+0x14a sys/arch/amd64/amd64/trap.c:332 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b pmap_page_remove(fffffd80089c9e80) at pmap_page_remove+0x45d _atomic_swap_64 machine/atomic.h:117 [inline] pmap_page_remove(fffffd80089c9e80) at pmap_page_remove+0x45d sys/arch/amd64/amd64/pmap.c:2005 uvm_anfree_list(fffffd8072cc8480,0) at uvm_anfree_list+0xd6 amap_wipeout(fffffd8077f4dc78) at amap_wipeout+0x248 sys/uvm/uvm_amap.c:502 uvm_unmap_detach(ffff800029fe5cc0,0) at uvm_unmap_detach+0x8a sys/uvm/uvm_map.c:1353 end trace frame: 0xffff800029fe5d00, 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(ffffffff8306af0f) at panic+0x1e5 sys/kern/subr_prf.c:198 witness_checkorder(ffffffff8353f908,1,0) at witness_checkorder+0x1197 witness_debugger sys/kern/subr_witness.c:2518 [inline] witness_checkorder(ffffffff8353f908,1,0) at witness_checkorder+0x1197 sys/kern/subr_witness.c:780 rw_enter_read(ffffffff8353f8f8) at rw_enter_read+0xab sys/kern/kern_rwlock.c:112 uvmfault_lookup(ffff800029fe58f0,0) at uvmfault_lookup+0x122 sys/uvm/uvm_fault.c:1785 uvm_fault_check(ffff800029fe58f0,ffff800029fe5928,ffff800029fe5950) at uvm_fault_check+0x47 sys/uvm/uvm_fault.c:672 uvm_fault(ffffffff8353f818,7f85928c8000,0,2) at uvm_fault+0x112 sys/uvm/uvm_fault.c:600 kpageflttrap(ffff800029fe5a90,7f85928c8a70) at kpageflttrap+0x2d0 sys/arch/amd64/amd64/trap.c:279 kerntrap(ffff800029fe5a90) at kerntrap+0x14a sys/arch/amd64/amd64/trap.c:332 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b pmap_page_remove(fffffd80089c9e80) at pmap_page_remove+0x45d _atomic_swap_64 machine/atomic.h:117 [inline] pmap_page_remove(fffffd80089c9e80) at pmap_page_remove+0x45d sys/arch/amd64/amd64/pmap.c:2005 uvm_anfree_list(fffffd8072cc8480,0) at uvm_anfree_list+0xd6 amap_wipeout(fffffd8077f4dc78) at amap_wipeout+0x248 sys/uvm/uvm_amap.c:502 uvm_unmap_detach(ffff800029fe5cc0,0) at uvm_unmap_detach+0x8a sys/uvm/uvm_map.c:1353 uvm_map_teardown(fffffd806bf9cdc0) at uvm_map_teardown+0x35e sys/uvm/uvm_map.c:2518 uvmspace_free(fffffd806bf9cdc0) at uvmspace_free+0xcd sys/uvm/uvm_map.c:3422 reaper(ffff800029fd9448) at reaper+0x246 sys/kern/kern_exit.c:481 end trace frame: 0x0, count: -17 ddb{1}> show registers rdi 0 rsi 0x1 rbp 0xffff800029fe5550 rbx 0xffff800029b7cd87 rdx 0 rcx 0xffff800029fd9448 rax 0xffff800029b7bff0 r8 0x101010101010101 r9 0x8080808080808080 r10 0xd57d8e1c0fac60b5 r11 0xb69a377908fd3b2e r12 0xffff800029b7cb88 r13 0 r14 0 r15 0x1 rip 0xffffffff82cdaee5 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff800029fe5540 ss 0x10 db_enter+0x25: addq $0x8,%rsp ddb{1}> show proc PROC (reaper) tid=254545 pid=62087 tcnt=1 stat=onproc flags process=14000 proc=200 runpri=84, usrpri=84, slppri=4, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff800029fd96d0,0xffff800029fd91d0 process=0xffff800029fea8d0 user=0xffff800029fe0000, vmspace=0xffffffff8353f818 estcpu=34, cpticks=3, pctcpu=39.5, user=0, sys=23347, intr=58 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 6175 389168 79351 0 3 0x82 wait syz-executor 39066 223885 79351 0 3 0x82 wait syz-executor 27198 171272 79351 0 3 0x82 wait syz-executor 91733 205663 79351 0 3 0x82 wait syz-executor 72054 505562 79351 0 3 0x82 wait syz-executor 65139 419804 79351 0 3 0x82 wait syz-executor 93114 76980 79351 0 3 0x82 wait syz-executor 39403 79086 0 0 3 0x14200 acct acct 16399 351107 1 0 3 0x100083 ttyin getty 64405 125563 0 0 3 0x14280 nfsidl nfsio 9394 335708 0 0 3 0x14280 nfsidl nfsio 5817 352618 0 0 3 0x14280 nfsidl nfsio 42187 23461 0 0 3 0x14280 nfsidl nfsio 1175 400825 0 0 3 0x14280 nfsidl nfsio 55689 18727 0 0 3 0x14280 nfsidl nfsio 29557 292797 0 0 3 0x14280 nfsidl nfsio 75432 98911 0 0 3 0x14280 nfsidl nfsio 53420 150065 0 0 3 0x14280 nfsidl nfsio 32610 134612 0 0 3 0x14280 nfsidl nfsio 89770 252283 0 0 3 0x14280 nfsidl nfsio 93777 71718 0 0 3 0x14280 nfsidl nfsio 95582 413890 0 0 3 0x14280 nfsidl nfsio 32529 65475 0 0 3 0x14280 nfsidl nfsio 62979 133446 0 0 3 0x14280 nfsidl nfsio 9077 42241 0 0 3 0x14280 nfsidl nfsio 55430 461346 0 0 3 0x14280 nfsidl nfsio 87944 190471 0 0 3 0x14280 nfsidl nfsio 42576 406381 0 0 3 0x14280 nfsidl nfsio 56004 388765 0 0 3 0x14280 nfsidl nfsio 48944 35209 0 0 3 0x14200 bored sosplice 79351 120667 89814 0 3 0x82 wait syz-executor 89814 520886 70289 0 3 0x10008a sigsusp ksh 70289 276194 83978 0 3 0x98 kqread sshd-session 83978 154851 79102 0 3 0x92 kqread sshd-session 79102 98893 1 0 3 0x88 kqread sshd 16955 395567 96922 74 3 0x1100092 bpf pflogd 96922 485399 1 0 3 0x80 sbwait pflogd 61069 365595 17720 73 7 0x1100010 syslogd 17720 452274 1 0 3 0x100082 sbwait syslogd 15688 387334 1 0 3 0x100080 kqread resolvd 41110 444141 68807 77 3 0x100092 kqread dhcpleased 26285 306417 68807 77 3 0x100092 kqread dhcpleased 68807 339357 1 0 3 0x80 kqread dhcpleased 54490 113088 0 0 3 0x14200 bored smr 82782 252800 0 0 3 0x14200 pgzero zerothread 15471 474229 0 0 3 0x14200 aiodoned aiodoned 73799 78901 0 0 3 0x14200 syncer update 4149 255415 0 0 3 0x14200 cleaner cleaner *62087 254545 0 0 7 0x14200 reaper 74230 87386 0 0 3 0x14200 pgdaemon pagedaemon 96938 178008 0 0 3 0x14200 bored viomb 81195 50752 0 0 3 0x40014200 acpi0 acpi0 3704 175806 0 0 3 0x40014200 idle1 41927 450192 0 0 3 0x14200 bored softnet3 73911 73249 0 0 3 0x14200 bored softnet2 32098 417970 0 0 3 0x14200 bored softnet1 63678 475142 0 0 3 0x14200 bored softnet0 28131 337730 0 0 3 0x14200 bored systqmp 62782 33849 0 0 3 0x14200 bored systq 27744 414208 0 0 3 0x14200 tmoslp softclockmp 94867 61428 0 0 3 0x40014200 tmoslp softclock 23307 345533 0 0 3 0x40014200 idle0 1 166410 0 0 3 0x80082 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks CPU 1: exclusive mutex &pmap->pm_mtx r = 0 (0xfffffd806d193018) #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+0x246 sys/kern/kern_exit.c:481 #10 proc_trampoline+0x10 Process 61069 (syslogd) thread 0xffff8000ffffd960 (365595) exclusive rrwlock inode r = 0 (0xfffffd806e49b0a0) #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 62087 (reaper) thread 0xffff800029fd9448 (254545) exclusive rwlock amaplk r = 0 (0xfffffd80737f5be0) #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+0x246 sys/kern/kern_exit.c:481 #6 proc_trampoline+0x10 exclusive mutex &pmap->pm_mtx r = 0 (0xfffffd806d193018) #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+0x246 sys/kern/kern_exit.c:481 #10 proc_trampoline+0x10 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10196 10164K 10546K 166960K 13082 0 pcb 17 17K 19K 166960K 282 0 rtable 181 13K 16K 166960K 2448 0 pf 35 17K 26K 166960K 222 0 ifaddr 39 7K 9K 166960K 316 0 ifgroup 51 2K 2K 166960K 355 0 sysctl 3 0K 0K 166960K 5 0 counters 62 36K 37K 166960K 218 0 ioctlops 0 0K 4K 166960K 1754 0 iov 0 0K 16K 166960K 158 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1406 88K 89K 166960K 2821 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 28 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 57 0 dirhash 15 2K 2K 166960K 42 0 ACPI 1697 195K 286K 166960K 12548 0 file desc 9 29K 93K 166960K 2325 0 sigio 0 0K 0K 166960K 135 0 proc 70 91K 128K 166960K 2365 0 subproc 49 3K 3K 166960K 491 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 447 0 in_multi 77 5K 7K 166960K 806 0 ether_multi 1 0K 0K 166960K 5 0 mrt 1 0K 0K 166960K 6 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 109 493K 493K 166960K 109 0 exec 0 0K 1K 166960K 1580 0 pfkey data 0 0K 0K 166960K 3 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 251 97K 123K 166960K 19871 0 UVM aobj 131 4K 4K 166960K 132 0 pinsyscall 34 68K 106K 166960K 5009 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 62 0 NDP 11 0K 2K 166960K 227 0 temp 99 6825K 6905K 166960K 71542 0 kqueue 13 20K 32K 166960K 202 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 120 332 0 329 3 2 1 3 0 8 0 rtentry 112 805 0 726 6 3 3 4 0 8 0 unpcb 144 1225 0 1208 9 8 1 2 0 8 0 syncache 336 10 0 10 6 6 0 1 0 8 0 tcpqe 32 5 0 5 3 3 0 1 0 8 0 tcpcb 808 597 0 591 21 20 1 8 0 8 0 arp 120 143 0 129 1 0 1 1 0 8 0 inpcb 336 2348 0 2339 39 38 1 13 0 8 0 nd6 136 216 0 197 1 0 1 1 0 8 0 pkpcb 40 10 0 10 3 3 0 1 0 8 0 kcovpl 48 70 0 63 1 0 1 1 0 8 0 ppxss 1168 8 0 8 4 4 0 1 0 8 0 pfstscr 40 2 0 2 1 1 0 1 0 8 0 pffrag 232 9 0 5 2 1 1 1 0 482 0 pffrnode 88 9 0 5 2 1 1 1 0 8 0 pffrent 40 145 0 141 2 1 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 24 186 0 162 1 0 1 1 0 8 0 pfstkey 128 190 0 166 3 1 2 2 0 8 0 pfstate 376 188 0 164 8 2 6 6 0 8 0 pfrule 1344 21 0 16 2 1 1 2 0 8 0 art_heap8 4096 2 0 0 2 0 2 2 0 8 0 art_heap4 256 3231 0 2866 49 20 29 30 0 8 0 art_table 32 3233 0 2866 5 1 4 4 0 8 0 art_node 16 800 0 730 1 0 1 1 0 8 0 sysvmsgpl 40 88 0 76 3 2 1 1 0 8 0 semapl 112 55 0 45 1 0 1 1 0 8 0 shmpl 112 129 0 1 4 0 4 4 0 8 0 dirhash 1024 38 0 19 3 0 3 3 0 8 0 dino2pl 256 4002 0 2375 103 1 102 102 0 8 0 ffsino 272 4002 0 2375 110 1 109 109 0 8 0 nchpl 144 6275 0 5637 65 41 24 63 0 8 0 uvmvnodes 80 5152 0 0 106 0 106 106 0 8 0 vnodes 216 5152 0 0 287 0 287 287 0 8 0 namei 1024 27703 0 27703 9 8 1 2 0 8 1 percpumem 16 123 0 78 1 0 1 1 0 8 0 vcpupl 3904 6 0 1 1 0 1 1 0 8 0 vmpool 696 8 0 3 3 2 1 1 0 8 0 kstatmem 264 178 0 156 4 2 2 3 0 8 0 scsiplug 72 3 0 3 2 2 0 1 0 8 0 scxspl 216 48629 0 48629 17 16 1 8 1 8 1 plimitpl 152 721 0 703 1 0 1 1 0 8 0 sigapl 424 2527 0 2456 11 2 9 9 0 8 0 futexpl 64 23810 0 23810 10 9 1 1 0 8 1 knotepl 120 476 0 0 10 0 10 10 0 8 0 kqueuepl 216 336 0 327 1 0 1 1 0 8 0 pipepl 320 468 0 441 8 5 3 6 0 8 0 fdescpl 496 2484 0 2461 9 5 4 5 0 8 0 filepl 152 13501 0 13321 35 25 10 14 0 8 0 lockfpl 104 483 0 481 1 0 1 1 0 8 0 lockfspl 48 183 0 181 1 0 1 1 0 8 0 sessionpl 144 87 0 78 1 0 1 1 0 8 0 pgrppl 48 173 0 156 1 0 1 1 0 8 0 ucredpl 104 1809 0 1796 1 0 1 1 0 8 0 zombiepl 144 2464 0 2456 3 2 1 1 0 8 0 processpl 1160 2527 0 2456 7 1 6 6 0 8 0 procpl 648 4696 0 4608 11 3 8 9 0 8 0 srpgc 96 20 0 20 5 5 0 1 0 8 0 sosppl 168 14 0 14 3 3 0 1 0 8 0 sockpl 664 3934 0 3905 43 40 3 14 0 8 0 mcl64k 65536 8 0 0 1 0 1 1 0 8 0 mcl16k 16384 4 0 0 1 0 1 1 0 8 0 mcl12k 12288 1 0 0 1 0 1 1 0 8 0 mcl9k 9216 1 0 0 1 0 1 1 0 8 0 mcl8k 8192 7 0 0 1 0 1 1 0 8 0 mcl4k 4096 6 0 0 1 0 1 1 0 8 0 mcl2k2 2112 2 0 0 1 0 1 1 0 8 0 mcl2k 2048 264 0 0 31 1 30 31 0 8 0 mtagpl 96 9 0 0 1 0 1 1 0 8 0 mbufpl 256 766 0 0 48 0 48 48 0 8 0 bufpl 280 10392 0 3047 525 0 525 525 0 8 0 anonpl 24 395899 0 388312 93 18 75 75 0 185 26 amapchunkpl 152 64742 0 64217 56 24 32 32 0 158 8 amappl16 200 8015 0 7755 66 51 15 15 0 8 0 amappl15 192 13 0 13 1 1 0 1 0 8 0 amappl14 184 246 0 233 1 0 1 1 0 8 0 amappl13 176 8 0 8 1 1 0 1 0 8 0 amappl12 168 4126 0 4096 4 2 2 3 0 8 0 amappl11 160 64 0 50 1 0 1 1 0 8 0 amappl10 152 14 0 14 1 1 0 1 0 8 0 amappl9 144 137 0 136 1 0 1 1 0 8 0 amappl8 136 31 0 29 1 0 1 1 0 8 0 amappl7 128 239 0 226 1 0 1 1 0 8 0 amappl6 120 783 0 782 1 0 1 1 0 8 0 amappl5 112 384 0 372 1 0 1 1 0 8 0 amappl4 104 501 0 481 1 0 1 1 0 8 0 amappl3 96 12572 0 12455 4 0 4 4 0 8 0 amappl2 88 1499 0 1435 2 0 2 2 0 8 0 amappl1 80 18269 0 17688 19 6 13 15 0 8 0 amappl 88 18962 0 18779 5 0 5 5 0 92 0 dma32768 32768 1 0 1 1 1 0 1 0 8 0 dma16384 16384 1 0 1 1 1 0 1 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 72 131 0 1 3 0 3 3 0 8 0 uaddrrnd 24 2492 0 2457 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 2492 0 2457 1 0 1 1 0 8 0 vmmpekpl 168 20338 0 20273 5 1 4 4 0 8 0 vmmpepl 168 167463 0 165272 137 35 102 102 0 357 0 vmsppl 440 2491 0 2456 8 3 5 5 0 8 0 rwobjpl 56 51025 0 44527 96 3 93 93 0 8 0 pdppl 4096 4991 0 4917 177 100 77 85 0 8 3 pvpl 32 33809 0 0 270 0 270 270 0 265 0 pmappl 248 2491 0 2456 3 0 3 3 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 611 0 203 12 0 12 12 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffffffff83499ff0) 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(ffffffff8359f830) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff8359f830) at __mp_lock+0x192 sys/kern/kern_lock.c:144 softintr_dispatch(0) at softintr_dispatch+0x5b sys/arch/amd64/amd64/softintr.c:88 Xsoftclock() at Xsoftclock+0x27 __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x2c kd_curproc sys/dev/kcov.c:589 [inline] __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x2c sys/dev/kcov.c:158 __mp_lock(ffffffff8359f830) at __mp_lock+0x1a3 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff8359f830) at __mp_lock+0x1a3 sys/kern/kern_lock.c:144 __mp_acquire_count(ffffffff8359f830,1) at __mp_acquire_count+0x58 mi_switch() at mi_switch+0x658 sys/kern/sched_bsd.c:460 sleep_finish(0,1) at sleep_finish+0x219 sys/kern/kern_synch.c:416 biowait(fffffd806f4df580) at biowait+0xc1 sys/kern/vfs_bio.c:1254 bwrite(fffffd806f4df580) at bwrite+0x2e2 sys/kern/vfs_bio.c:766 ffs_update(fffffd806e49b008,1) at ffs_update+0x34c sys/ufs/ffs/ffs_inode.c:111 end trace frame: 0xffff80002a06ab50, count: 0 ddb{0}> trace x86_ipi_db(ffffffff83499ff0) 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(ffffffff8359f830) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff8359f830) at __mp_lock+0x192 sys/kern/kern_lock.c:144 softintr_dispatch(0) at softintr_dispatch+0x5b sys/arch/amd64/amd64/softintr.c:88 Xsoftclock() at Xsoftclock+0x27 __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x2c kd_curproc sys/dev/kcov.c:589 [inline] __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x2c sys/dev/kcov.c:158 __mp_lock(ffffffff8359f830) at __mp_lock+0x1a3 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff8359f830) at __mp_lock+0x1a3 sys/kern/kern_lock.c:144 __mp_acquire_count(ffffffff8359f830,1) at __mp_acquire_count+0x58 mi_switch() at mi_switch+0x658 sys/kern/sched_bsd.c:460 sleep_finish(0,1) at sleep_finish+0x219 sys/kern/kern_synch.c:416 biowait(fffffd806f4df580) at biowait+0xc1 sys/kern/vfs_bio.c:1254 bwrite(fffffd806f4df580) at bwrite+0x2e2 sys/kern/vfs_bio.c:766 ffs_update(fffffd806e49b008,1) at ffs_update+0x34c sys/ufs/ffs/ffs_inode.c:111 VOP_FSYNC(fffffd806e25c7e8,fffffd807f7d3a28,1,ffff8000ffffd960) at VOP_FSYNC+0x108 sys/kern/vfs_vops.c:311 sys_fsync(ffff8000ffffd960,ffff80002a06ac90,ffff80002a06abe0) at sys_fsync+0x16f sys/kern/vfs_syscalls.c:2927 syscall(ffff80002a06ac90) at syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff80002a06ac90) at syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7a403d6cdbe0, count: -18 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(ffffffff8306af0f) at panic+0x1e5 sys/kern/subr_prf.c:198 witness_checkorder(ffffffff8353f908,1,0) at witness_checkorder+0x1197 witness_debugger sys/kern/subr_witness.c:2518 [inline] witness_checkorder(ffffffff8353f908,1,0) at witness_checkorder+0x1197 sys/kern/subr_witness.c:780 rw_enter_read(ffffffff8353f8f8) at rw_enter_read+0xab sys/kern/kern_rwlock.c:112 uvmfault_lookup(ffff800029fe58f0,0) at uvmfault_lookup+0x122 sys/uvm/uvm_fault.c:1785 uvm_fault_check(ffff800029fe58f0,ffff800029fe5928,ffff800029fe5950) at uvm_fault_check+0x47 sys/uvm/uvm_fault.c:672 uvm_fault(ffffffff8353f818,7f85928c8000,0,2) at uvm_fault+0x112 sys/uvm/uvm_fault.c:600 kpageflttrap(ffff800029fe5a90,7f85928c8a70) at kpageflttrap+0x2d0 sys/arch/amd64/amd64/trap.c:279 kerntrap(ffff800029fe5a90) at kerntrap+0x14a sys/arch/amd64/amd64/trap.c:332 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b pmap_page_remove(fffffd80089c9e80) at pmap_page_remove+0x45d _atomic_swap_64 machine/atomic.h:117 [inline] pmap_page_remove(fffffd80089c9e80) at pmap_page_remove+0x45d sys/arch/amd64/amd64/pmap.c:2005 uvm_anfree_list(fffffd8072cc8480,0) at uvm_anfree_list+0xd6 amap_wipeout(fffffd8077f4dc78) at amap_wipeout+0x248 sys/uvm/uvm_amap.c:502 uvm_unmap_detach(ffff800029fe5cc0,0) at uvm_unmap_detach+0x8a sys/uvm/uvm_map.c:1353 end trace frame: 0xffff800029fe5d00, count: 0 ddb{1}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff8306af0f) at panic+0x1e5 sys/kern/subr_prf.c:198 witness_checkorder(ffffffff8353f908,1,0) at witness_checkorder+0x1197 witness_debugger sys/kern/subr_witness.c:2518 [inline] witness_checkorder(ffffffff8353f908,1,0) at witness_checkorder+0x1197 sys/kern/subr_witness.c:780 rw_enter_read(ffffffff8353f8f8) at rw_enter_read+0xab sys/kern/kern_rwlock.c:112 uvmfault_lookup(ffff800029fe58f0,0) at uvmfault_lookup+0x122 sys/uvm/uvm_fault.c:1785 uvm_fault_check(ffff800029fe58f0,ffff800029fe5928,ffff800029fe5950) at uvm_fault_check+0x47 sys/uvm/uvm_fault.c:672 uvm_fault(ffffffff8353f818,7f85928c8000,0,2) at uvm_fault+0x112 sys/uvm/uvm_fault.c:600 kpageflttrap(ffff800029fe5a90,7f85928c8a70) at kpageflttrap+0x2d0 sys/arch/amd64/amd64/trap.c:279 kerntrap(ffff800029fe5a90) at kerntrap+0x14a sys/arch/amd64/amd64/trap.c:332 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b pmap_page_remove(fffffd80089c9e80) at pmap_page_remove+0x45d _atomic_swap_64 machine/atomic.h:117 [inline] pmap_page_remove(fffffd80089c9e80) at pmap_page_remove+0x45d sys/arch/amd64/amd64/pmap.c:2005 uvm_anfree_list(fffffd8072cc8480,0) at uvm_anfree_list+0xd6 amap_wipeout(fffffd8077f4dc78) at amap_wipeout+0x248 sys/uvm/uvm_amap.c:502 uvm_unmap_detach(ffff800029fe5cc0,0) at uvm_unmap_detach+0x8a sys/uvm/uvm_map.c:1353 uvm_map_teardown(fffffd806bf9cdc0) at uvm_map_teardown+0x35e sys/uvm/uvm_map.c:2518 uvmspace_free(fffffd806bf9cdc0) at uvmspace_free+0xcd sys/uvm/uvm_map.c:3422 reaper(ffff800029fd9448) at reaper+0x246 sys/kern/kern_exit.c:481 end trace frame: 0x0, count: -17