panic: kernel diagnostic assertion "va >= entry->start" failed: file "/syzkaller/managers/setuid/kernel/sys/uvm/uvm_fault.c", line 1741 Stopped at db_enter+0x25: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND 134775 14582 32767 0x10 0 0 syz-executor *415345 14582 32767 0x10 0x4000000 1K syz-executor db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff8343e7a8) at panic+0x1e5 sys/kern/subr_prf.c:198 __assert(ffffffff833eb18b,ffffffff8342d025,6cd,ffffffff833402dd) at __assert+0x29 uvm_fault_unwire_locked(fffffd806c148020,400000000000,400000021000) at uvm_fault_unwire_locked+0x4b4 uvm_fault_unwire(fffffd806c148020,400000000000,400000021000) at uvm_fault_unwire+0x55 sys/uvm/uvm_fault.c:1704 sysctl_vsunlock(400000000080,20000) at sysctl_vsunlock+0x7b sys/kern/kern_sysctl.c:215 net_sysctl(ffff8000398db874,3,400000000080,ffff8000398db8a8,0,0,79969bde7a22a833) at net_sysctl+0x69a sys/kern/uipc_domain.c:259 sys_sysctl(ffff8000ffffb208,ffff8000398db9e0,ffff8000398db930) at sys_sysctl+0x425 syscall(ffff8000398db9e0) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff8000398db9e0) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x29ecb1c9f70, count: 5 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: kernel diagnostic assertion "va >= entry->start" failed: file "/syzkaller/managers/setuid/kernel/sys/uvm/uvm_fault.c", line 1741 ddb{1}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff8343e7a8) at panic+0x1e5 sys/kern/subr_prf.c:198 __assert(ffffffff833eb18b,ffffffff8342d025,6cd,ffffffff833402dd) at __assert+0x29 uvm_fault_unwire_locked(fffffd806c148020,400000000000,400000021000) at uvm_fault_unwire_locked+0x4b4 uvm_fault_unwire(fffffd806c148020,400000000000,400000021000) at uvm_fault_unwire+0x55 sys/uvm/uvm_fault.c:1704 sysctl_vsunlock(400000000080,20000) at sysctl_vsunlock+0x7b sys/kern/kern_sysctl.c:215 net_sysctl(ffff8000398db874,3,400000000080,ffff8000398db8a8,0,0,79969bde7a22a833) at net_sysctl+0x69a sys/kern/uipc_domain.c:259 sys_sysctl(ffff8000ffffb208,ffff8000398db9e0,ffff8000398db930) at sys_sysctl+0x425 syscall(ffff8000398db9e0) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff8000398db9e0) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x29ecb1c9f70, count: -10 ddb{1}> show registers rdi 0 rsi 0x1 rbp 0xffff8000398db5d0 rbx 0xffff800029a9cdc7 rdx 0 rcx 0xffff8000ffffb208 rax 0xffff800029a9bff0 r8 0x101010101010101 r9 0x8080808080808080 r10 0x3c10fa394f2b9c45 r11 0xf6dbcb0d2ccb2add r12 0xffff800029a9cbc8 r13 0 r14 0 r15 0x1 rip 0xffffffff829193d5 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff8000398db5c0 ss 0x10 db_enter+0x25: addq $0x8,%rsp ddb{1}> show proc PROC (syz-executor) tid=415345 pid=14582 tcnt=4 stat=onproc flags process=10 proc=4000000 runpri=36, usrpri=77, slppri=36, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff8000ffffb498,0xffff8000ffffa028 process=0xffff800034cae978 user=0xffff8000398d6000, vmspace=0xfffffd806c148020 estcpu=27, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 14582 134775 25253 32767 7 0x10 syz-executor *14582 415345 25253 32767 7 0x4000010 syz-executor 14582 349263 25253 32767 2 0x4000010 syz-executor 14582 409549 25253 32767 2 0x4000010 syz-executor 36766 259437 45872 32767 2 0x10 syz-executor 36766 264103 45872 32767 3 0x4000090 ttyout syz-executor 36766 405143 45872 32767 3 0x4000090 ttyout syz-executor 17335 362550 10401 32767 3 0x90 nanoslp syz-executor 17335 477326 10401 32767 2 0x4000010 syz-executor 17335 357207 10401 32767 2 0x4000010 syz-executor 17335 77967 10401 32767 3 0x4000090 fsleep syz-executor 87616 221383 85869 32767 3 0x90 nanoslp syz-executor 87616 500897 85869 32767 3 0x4000090 ttyout syz-executor 87616 438279 85869 32767 3 0x4000090 ttyout syz-executor 87616 118731 85869 32767 3 0x4000090 fsleep syz-executor 6682 461764 0 0 3 0x14200 bored sosplice 10401 172651 25872 32767 3 0x90 nanoslp syz-executor 25253 130643 75446 32767 3 0x90 nanoslp syz-executor 85869 406533 71961 32767 3 0x90 nanoslp syz-executor 28933 491378 89040 32767 3 0x90 piperd syz-executor 45872 227916 44208 32767 3 0x90 nanoslp syz-executor 99797 89588 3296 32767 3 0x90 piperd syz-executor 44208 365906 26934 0 3 0x82 wait syz-executor 25872 422029 26934 0 3 0x82 wait syz-executor 3296 406316 26934 0 3 0x82 wait syz-executor 75446 259719 26934 0 3 0x82 wait syz-executor 71961 80001 26934 0 3 0x82 wait syz-executor 89040 273630 26934 0 3 0x82 wait syz-executor 26934 195091 27575 0 3 0x82 nanoslp syz-executor 27575 107008 80394 0 3 0x10008a sigsusp ksh 80394 276682 36175 0 3 0x98 kqread sshd-session 36175 344505 17020 0 3 0x92 kqread sshd-session 7667 331673 1 0 3 0x100083 ttyin getty 17020 169747 1 0 3 0x88 kqread sshd 8727 443072 11205 73 3 0x1100090 kqread syslogd 11205 329197 1 0 3 0x100082 sbwait syslogd 80616 313560 1 0 3 0x100080 kqread resolvd 44945 91523 29562 77 3 0x100092 kqread dhcpleased 98323 91017 29562 77 3 0x100092 kqread dhcpleased 29562 329191 1 0 3 0x80 kqread dhcpleased 8614 502745 0 0 3 0x14200 bored smr 41943 363379 0 0 2 0x14200 zerothread 74528 353616 0 0 3 0x14200 aiodoned aiodoned 97259 20209 0 0 3 0x14200 syncer update 31047 459699 0 0 3 0x14200 cleaner cleaner 2739 466736 0 0 3 0x14200 reaper reaper 99235 403514 0 0 3 0x14200 pgdaemon pagedaemon 8185 280926 0 0 3 0x14200 bored viomb 50964 325983 0 0 3 0x40014200 acpi0 acpi0 62444 479014 0 0 3 0x40014200 idle1 59163 40034 0 0 3 0x14200 bored softnet3 26360 335763 0 0 3 0x14200 bored softnet2 8747 440882 0 0 3 0x14200 bored softnet1 20521 20343 0 0 3 0x14200 bored softnet0 9654 304845 0 0 3 0x14200 bored systqmp 75062 414603 0 0 3 0x14200 bored systq 96964 164622 0 0 3 0x14200 tmoslp softclockmp 72681 386144 0 0 3 0x40014200 tmoslp softclock 32285 13170 0 0 3 0x40014200 idle0 1 41646 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 14582 (syz-executor) thread 0xffff8000370c2540 (134775) exclusive rwlock uobjlk r = 0 (0xfffffd806c023f68) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 rw_do_enter_write+0x3ea sys/kern/kern_rwlock.c:316 #2 uvm_fault+0x1e9 sys/uvm/uvm_fault.c:690 #3 upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:188 #4 usertrap+0x2d8 sys/arch/amd64/amd64/trap.c:436 #5 recall_trap+0x8 shared rwlock vmmaplk r = 0 (0xfffffd806c148120) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 rw_do_enter_read+0x3af sys/kern/kern_rwlock.c:405 #2 uvmfault_lookup+0x122 sys/uvm/uvm_fault.c:1866 #3 uvm_fault_check+0x4b sys/uvm/uvm_fault.c:732 #4 uvm_fault+0x106 sys/uvm/uvm_fault.c:668 #5 upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:188 #6 usertrap+0x2d8 sys/arch/amd64/amd64/trap.c:436 #7 recall_trap+0x8 Process 14582 (syz-executor) thread 0xffff8000ffffb208 (415345) exclusive rwlock amaplk r = 0 (0xfffffd806c135c60) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 rw_do_enter_write+0x3ea sys/kern/kern_rwlock.c:316 #2 uvm_map_lock_entry+0x51 sys/uvm/uvm_map.c:464 #3 uvm_fault_unwire_locked+0x253 sys/uvm/uvm_fault.c:1760 #4 uvm_fault_unwire+0x55 sys/uvm/uvm_fault.c:1704 #5 sysctl_vsunlock+0x7b sys/kern/kern_sysctl.c:215 #6 net_sysctl+0x69a sys/kern/uipc_domain.c:259 #7 sys_sysctl+0x425 #8 syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] #8 syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 #9 Xsyscall+0x128 shared rwlock vmmaplk r = 0 (0xfffffd806c148120) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 rw_do_enter_read+0x3af sys/kern/kern_rwlock.c:405 #2 uvm_fault_unwire+0x3e sys/uvm/uvm_fault.c:1703 #3 sysctl_vsunlock+0x7b sys/kern/kern_sysctl.c:215 #4 net_sysctl+0x69a sys/kern/uipc_domain.c:259 #5 sys_sysctl+0x425 #6 syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] #6 syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 #7 Xsyscall+0x128 exclusive kernel_lock &kernel_lock r = 0 (0xffffffff839ef0b8) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 __mp_acquire_count+0x58 #2 mi_switch+0x4b7 sys/kern/sched_bsd.c:441 #3 sleep_finish+0x24f sys/kern/kern_synch.c:414 #4 rw_do_enter_read+0x2de sys/kern/kern_rwlock.c:385 #5 uvmfault_lookup+0x122 sys/uvm/uvm_fault.c:1866 #6 uvm_fault_check+0x4b sys/uvm/uvm_fault.c:732 #7 uvm_fault+0x106 sys/uvm/uvm_fault.c:668 #8 uvm_fault_wire+0x73 sys/uvm/uvm_fault.c:1683 #9 sysctl_vslock+0x109 sys/kern/kern_sysctl.c:197 #10 net_sysctl+0x5a1 sys/kern/uipc_domain.c:253 #11 sys_sysctl+0x425 #12 syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] #12 syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 #13 Xsyscall+0x128 exclusive rwlock sysctllk r = 0 (0xffffffff83889268) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 rw_do_enter_write+0x3ea sys/kern/kern_rwlock.c:316 #2 sysctl_vslock+0x45 sys/kern/kern_sysctl.c:187 #3 net_sysctl+0x5a1 sys/kern/uipc_domain.c:253 #4 sys_sysctl+0x425 #5 syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] #5 syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 #6 Xsyscall+0x128 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10180 10949K 10966K 166960K 11265 0 pcb 17 12K 12K 166960K 17 0 rtable 192 5K 7K 166960K 357 0 pf 27 16K 16K 166960K 31 0 ifaddr 34 6K 7K 166960K 44 0 ifgroup 42 1K 2K 166960K 50 0 sysctl 3 1K 1K 166960K 3 0 counters 60 35K 36K 166960K 64 0 ioctlops 0 0K 2K 166960K 33 0 iov 0 0K 12K 166960K 4 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1332 84K 84K 166960K 1402 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 15 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 18 65K 117K 166960K 226 0 proc 58 79K 127K 166960K 483 0 subproc 54 3K 4K 166960K 126 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 17 0 in_multi 77 5K 7K 166960K 101 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 61 281K 281K 166960K 61 0 exec 0 0K 1K 166960K 354 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 208 60K 75K 166960K 3275 0 UVM aobj 4 4K 4K 166960K 4 0 pinsyscall 39 78K 107K 166960K 1251 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 3 0 NDP 9 0K 2K 166960K 27 0 temp 26 8677K 8744K 166960K 4074 0 kqueue 15 24K 24K 166960K 34 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 43 0 40 1 0 1 1 0 8 0 rtentry 160 113 0 24 5 0 5 5 0 8 0 unpcb 144 84 0 64 2 0 2 2 0 8 1 syncache 336 3 0 3 1 0 1 1 0 8 1 tcpcb 808 25 0 21 2 0 2 2 0 8 1 arp 120 18 0 4 1 0 1 1 0 8 0 inpcb 376 173 0 164 9 0 9 9 0 8 8 nd6 136 26 0 7 1 0 1 1 0 8 0 kcovpl 48 14 0 8 1 0 1 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 463 0 96 29 0 29 29 0 8 4 art_table 32 464 0 96 4 0 4 4 0 8 0 art_node 16 112 0 31 1 0 1 1 0 8 0 semapl 112 7 0 1 1 0 1 1 0 8 0 shmpl 112 1 0 0 1 0 1 1 0 8 0 dirhash 1024 19 0 2 3 0 3 3 0 8 0 dino2pl 256 1633 0 122 95 0 95 95 0 8 0 ffsino 280 1633 0 122 109 0 109 109 0 8 0 nchpl 144 1901 0 219 63 0 63 63 0 8 0 uvmvnodes 80 1768 0 0 37 0 37 37 0 8 0 vnodes 216 1768 0 0 99 0 99 99 0 8 0 namei 1024 5775 0 5775 1 0 1 1 0 8 1 percpumem 16 46 0 2 1 0 1 1 0 8 0 kstatmem 264 22 0 4 2 0 2 2 0 8 0 scxspl 216 6438 0 6438 9 1 8 8 1 8 8 plimitpl 152 55 0 33 2 0 2 2 0 8 1 sigapl 424 495 0 445 7 0 7 7 0 8 0 futexpl 64 933 0 931 1 0 1 1 0 8 0 knotepl 120 314 0 0 10 0 10 10 0 8 0 kqueuepl 216 34 0 23 1 0 1 1 0 8 0 pipepl 328 130 0 103 3 0 3 3 0 8 0 fdescpl 504 476 0 446 7 1 6 6 0 8 0 filepl 152 1915 0 1725 12 0 12 12 0 8 3 lockfpl 104 77 0 75 1 0 1 1 0 8 0 lockfspl 48 7 0 5 1 0 1 1 0 8 0 sessionpl 144 27 0 13 1 0 1 1 0 8 0 pgrppl 48 41 0 20 1 0 1 1 0 8 0 ucredpl 104 159 0 142 1 0 1 1 0 8 0 zombiepl 144 446 0 445 1 0 1 1 0 8 0 processpl 1176 495 0 445 5 0 5 5 0 8 0 procpl 656 603 0 542 7 0 7 7 0 8 1 sosppl 168 2 0 2 1 0 1 1 0 8 1 sockpl 688 301 0 269 10 0 10 10 0 8 7 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 112 0 0 14 0 14 14 0 8 0 mcl2k 2048 25 0 0 4 0 4 4 0 8 0 mtagpl 96 4 0 0 1 0 1 1 0 8 0 mbufpl 256 249 0 0 16 0 16 16 0 8 0 bufpl 280 2314 0 123 157 0 157 157 0 8 0 anonpl 24 110127 0 107176 55 0 55 55 0 184 18 amapchunkpl 152 10194 0 9727 28 0 28 28 0 158 7 amappl16 200 2304 0 2287 14 0 14 14 0 8 7 amappl15 192 8 0 8 1 1 0 1 0 8 0 amappl14 184 103 0 93 1 0 1 1 0 8 0 amappl13 176 9 0 9 1 1 0 1 0 8 0 amappl12 168 1082 0 1052 2 0 2 2 0 8 0 amappl11 160 48 0 37 1 0 1 1 0 8 0 amappl10 152 6 0 6 1 1 0 1 0 8 0 amappl9 144 256 0 256 1 1 0 1 0 8 0 amappl8 136 22 0 21 1 0 1 1 0 8 0 amappl7 128 102 0 92 1 0 1 1 0 8 0 amappl6 120 179 0 176 1 0 1 1 0 8 0 amappl5 112 115 0 109 1 0 1 1 0 8 0 amappl4 104 280 0 266 1 0 1 1 0 8 0 amappl3 96 1628 0 1519 4 0 4 4 0 8 0 amappl2 88 609 0 556 2 0 2 2 0 8 0 amappl1 80 7768 0 7249 13 0 13 13 0 8 0 amappl 88 2927 0 2766 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 3 0 0 1 0 1 1 0 8 0 uaddrrnd 24 476 0 446 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 476 0 446 1 0 1 1 0 8 0 vmmpekpl 168 5491 0 5442 3 0 3 3 0 8 0 vmmpepl 168 35812 0 34101 98 0 98 98 0 357 14 vmsppl 456 475 0 446 7 1 6 6 0 8 1 rwobjpl 64 15038 0 12478 45 0 45 45 0 8 0 pdppl 4096 959 0 892 111 30 81 93 0 8 14 pvpl 32 16532 0 0 134 0 134 134 0 265 0 pmappl 248 475 0 446 4 1 3 3 0 8 0 extentpl 40 55 0 38 1 0 1 1 0 8 0 phpool 112 289 0 33 8 0 8 8 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffffffff8381cff0) 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(ffffffff839eeeb0) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff839eeeb0) 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+0x33 kd_curproc sys/dev/kcov.c:585 [inline] __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x33 sys/dev/kcov.c:153 __mp_lock(ffffffff839eeeb0) at __mp_lock+0x1a3 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff839eeeb0) at __mp_lock+0x1a3 sys/kern/kern_lock.c:144 uvm_fault(fffffd806c148020,29e67859000,0,2) at uvm_fault+0x1ee sys/uvm/uvm_fault.c:691 upageflttrap(ffff80002f097b40,29e67859000) at upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:188 usertrap(ffff80002f097b40) at usertrap+0x2d8 sys/arch/amd64/amd64/trap.c:436 recall_trap() at recall_trap+0x8 end of kernel end trace frame: 0x7037035fb4c0, count: 3 ddb{0}> trace x86_ipi_db(ffffffff8381cff0) 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(ffffffff839eeeb0) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff839eeeb0) 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+0x33 kd_curproc sys/dev/kcov.c:585 [inline] __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x33 sys/dev/kcov.c:153 __mp_lock(ffffffff839eeeb0) at __mp_lock+0x1a3 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff839eeeb0) at __mp_lock+0x1a3 sys/kern/kern_lock.c:144 uvm_fault(fffffd806c148020,29e67859000,0,2) at uvm_fault+0x1ee sys/uvm/uvm_fault.c:691 upageflttrap(ffff80002f097b40,29e67859000) at upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:188 usertrap(ffff80002f097b40) at usertrap+0x2d8 sys/arch/amd64/amd64/trap.c:436 recall_trap() at recall_trap+0x8 end of kernel end trace frame: 0x7037035fb4c0, count: -12 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:438 panic(ffffffff8343e7a8) at panic+0x1e5 sys/kern/subr_prf.c:198 __assert(ffffffff833eb18b,ffffffff8342d025,6cd,ffffffff833402dd) at __assert+0x29 uvm_fault_unwire_locked(fffffd806c148020,400000000000,400000021000) at uvm_fault_unwire_locked+0x4b4 uvm_fault_unwire(fffffd806c148020,400000000000,400000021000) at uvm_fault_unwire+0x55 sys/uvm/uvm_fault.c:1704 sysctl_vsunlock(400000000080,20000) at sysctl_vsunlock+0x7b sys/kern/kern_sysctl.c:215 net_sysctl(ffff8000398db874,3,400000000080,ffff8000398db8a8,0,0,79969bde7a22a833) at net_sysctl+0x69a sys/kern/uipc_domain.c:259 sys_sysctl(ffff8000ffffb208,ffff8000398db9e0,ffff8000398db930) at sys_sysctl+0x425 syscall(ffff8000398db9e0) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff8000398db9e0) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x29ecb1c9f70, count: 5 ddb{1}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff8343e7a8) at panic+0x1e5 sys/kern/subr_prf.c:198 __assert(ffffffff833eb18b,ffffffff8342d025,6cd,ffffffff833402dd) at __assert+0x29 uvm_fault_unwire_locked(fffffd806c148020,400000000000,400000021000) at uvm_fault_unwire_locked+0x4b4 uvm_fault_unwire(fffffd806c148020,400000000000,400000021000) at uvm_fault_unwire+0x55 sys/uvm/uvm_fault.c:1704 sysctl_vsunlock(400000000080,20000) at sysctl_vsunlock+0x7b sys/kern/kern_sysctl.c:215 net_sysctl(ffff8000398db874,3,400000000080,ffff8000398db8a8,0,0,79969bde7a22a833) at net_sysctl+0x69a sys/kern/uipc_domain.c:259 sys_sysctl(ffff8000ffffb208,ffff8000398db9e0,ffff8000398db930) at sys_sysctl+0x425 syscall(ffff8000398db9e0) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff8000398db9e0) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x29ecb1c9f70, count: -10