panic: uvm_fault_unwire_locked: address not in map Stopped at db_enter+0x25: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND * 43129 58902 -1 0x10 0x4000000 1K syz-executor 219551 58902 -1 0x10 0x4000000 0 syz-executor db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff83508eac) at panic+0x1e5 sys/kern/subr_prf.c:198 uvm_fault_unwire_locked(fffff8006cd49208,2000006f0000,2000006f2000) at uvm_fault_unwire_locked+0x4be uvm_fault_wire(fffff8006cd49208,2000006f0000,200000701000,1) at uvm_fault_wire+0x12d uvm_fault_unwire sys/uvm/uvm_fault.c:1724 [inline] uvm_fault_wire(fffff8006cd49208,2000006f0000,200000701000,1) at uvm_fault_wire+0x12d sys/uvm/uvm_fault.c:1706 uvm_vslock_device(ffff80003c3b8550,2000006f04c0,10000,1,ffff80003c3d1298) at uvm_vslock_device+0x112 sys/uvm/uvm_glue.c:169 physio(ffffffff81224b20,d02,0,ffffffff81225350,ffff80003c3d1578) at physio+0x257 sys/kern/kern_physio.c:139 spec_write(ffff80003c3d13c0) at spec_write+0x11f sys/kern/spec_vnops.c:302 VOP_WRITE(fffff8006cee10d8,ffff80003c3d1578,5,fffff800097fd820) at VOP_WRITE+0x101 sys/kern/vfs_vops.c:245 vn_write(fffff8006cda5900,ffff80003c3d1578,0) at vn_write+0x1d3 sys/kern/vfs_vnops.c:414 dofilewritev(ffff80003c3b8550,5,ffff80003c3d1578,0,ffff80003c3d1630) at dofilewritev+0x2bd sys/kern/sys_generic.c:384 sys_write(ffff80003c3b8550,ffff80003c3d16e0,ffff80003c3d1630) at sys_write+0xa2 sys/kern/sys_generic.c:300 syscall(ffff80003c3d16e0) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c3d16e0) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x8d34e2f5c40, count: 2 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_unwire_locked: address not in map ddb{1}> show kasan No such command ddb{1}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff83508eac) at panic+0x1e5 sys/kern/subr_prf.c:198 uvm_fault_unwire_locked(fffff8006cd49208,2000006f0000,2000006f2000) at uvm_fault_unwire_locked+0x4be uvm_fault_wire(fffff8006cd49208,2000006f0000,200000701000,1) at uvm_fault_wire+0x12d uvm_fault_unwire sys/uvm/uvm_fault.c:1724 [inline] uvm_fault_wire(fffff8006cd49208,2000006f0000,200000701000,1) at uvm_fault_wire+0x12d sys/uvm/uvm_fault.c:1706 uvm_vslock_device(ffff80003c3b8550,2000006f04c0,10000,1,ffff80003c3d1298) at uvm_vslock_device+0x112 sys/uvm/uvm_glue.c:169 physio(ffffffff81224b20,d02,0,ffffffff81225350,ffff80003c3d1578) at physio+0x257 sys/kern/kern_physio.c:139 spec_write(ffff80003c3d13c0) at spec_write+0x11f sys/kern/spec_vnops.c:302 VOP_WRITE(fffff8006cee10d8,ffff80003c3d1578,5,fffff800097fd820) at VOP_WRITE+0x101 sys/kern/vfs_vops.c:245 vn_write(fffff8006cda5900,ffff80003c3d1578,0) at vn_write+0x1d3 sys/kern/vfs_vnops.c:414 dofilewritev(ffff80003c3b8550,5,ffff80003c3d1578,0,ffff80003c3d1630) at dofilewritev+0x2bd sys/kern/sys_generic.c:384 sys_write(ffff80003c3b8550,ffff80003c3d16e0,ffff80003c3d1630) at sys_write+0xa2 sys/kern/sys_generic.c:300 syscall(ffff80003c3d16e0) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c3d16e0) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x8d34e2f5c40, count: -13 ddb{1}> show registers rdi 0 rsi 0x1 rbp 0xffff80003c3d0fe0 rbx 0xffff80002999ee07 rdx 0xffff8000015fc6c0 rcx 0xffff80003c3b8550 rax 0xffff80002999dff0 r8 0x101010101010101 r9 0x8080808080808080 r10 0x75b2189c95a00f6b r11 0x9b4189bd0a085c78 r12 0xffff80002999ec08 r13 0 r14 0 r15 0x1 rip 0xffffffff830c2a95 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff80003c3d0fd0 ss 0x10 db_enter+0x25: addq $0x8,%rsp ddb{1}> show proc PROC (syz-executor) tid=43129 pid=58902 tcnt=4 stat=onproc flags process=10 proc=4000000 runpri=36, usrpri=52, slppri=36, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80003c3b9248,0xffff80003c3b9a20 process=0xffff80002a37d828 user=0xffff80003c3cc000, vmspace=0xfffff8006cd49208 estcpu=2, cpticks=10, pctcpu=0.0, user=0, sys=10, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 78722 104952 10845 0 2 0x2 ifconfig 10845 510502 39478 0 3 0x10008a sigsusp sh 28085 269847 41431 0 2 0 syz-executor 38035 163850 58266 0 2 0 syz-executor 38035 236216 58266 0 3 0x4000080 sbwait syz-executor 65985 363869 63099 0 2 0 syz-executor 65985 460173 63099 0 2 0x4000000 syz-executor 65985 427934 63099 0 3 0x4000080 fsleep syz-executor 65098 96879 70794 0 2 0x100000 sh 49745 183256 36454 0 2 0 syz-executor 49745 163899 36454 0 3 0x4000080 fsleep syz-executor 58902 325892 85350 -1 2 0x10 syz-executor *58902 43129 85350 -1 7 0x4000010 syz-executor 58902 219551 85350 -1 7 0x4000010 syz-executor 58902 296028 85350 -1 3 0x4000090 fsleep syz-executor 70794 116537 44636 0 2 0x100002 sh 72734 185806 71801 0 2 0x100002 sh 63099 364766 21634 0 3 0x82 nanoslp syz-executor 36454 229286 21634 0 3 0x82 nanoslp syz-executor 44636 506435 21634 0 3 0x82 wait syz-executor 85350 48523 21634 0 3 0x82 nanoslp syz-executor 39478 16729 21634 0 3 0x82 wait syz-executor 41431 458043 21634 0 2 0x2 syz-executor 71801 121660 21634 0 3 0x82 wait syz-executor 58266 123446 21634 0 3 0x82 nanoslp syz-executor 21634 138405 30154 0 3 0x82 kqread syz-executor 30154 152661 71995 0 3 0x10008a sigsusp ksh 71995 445210 46906 0 3 0x98 kqread sshd-session 46906 177713 62403 0 3 0x92 kqread sshd-session 24945 380688 1 0 3 0x100083 ttyin getty 62403 61678 1 0 3 0x88 kqread sshd 9056 13117 16053 74 3 0x1100092 bpf pflogd 16053 85397 1 0 3 0x80 sbwait pflogd 77264 107099 12806 73 3 0x1100090 kqread syslogd 12806 496172 1 0 3 0x100082 sbwait syslogd 64431 76286 1 0 3 0x100080 kqread resolvd 77436 257288 42558 77 3 0x100092 kqread dhcpleased 27193 170312 42558 77 3 0x100092 kqread dhcpleased 42558 449548 1 0 3 0x80 kqread dhcpleased 56039 319488 0 0 3 0x14200 bored smr 55666 161072 0 0 2 0x14200 zerothread 79042 310164 0 0 3 0x14200 aiodoned aiodoned 83264 435808 0 0 3 0x14200 syncer update 30062 77454 0 0 3 0x14200 cleaner cleaner 45757 327884 0 0 3 0x14200 reaper reaper 48038 390349 0 0 3 0x14200 pgdaemon pagedaemon 6759 47387 0 0 3 0x14200 bored viomb 16843 126087 0 0 3 0x40014200 acpi0 acpi0 18394 77790 0 0 3 0x40014200 idle1 71192 58649 0 0 3 0x14200 bored softnet1 52916 371560 0 0 2 0x14200 softnet0 45381 95465 0 0 3 0x14200 bored systqmp 59845 169723 0 0 3 0x14200 bored systq 50714 357731 0 0 3 0x14200 tmoslp softclockmp 23351 244141 0 0 3 0x40014200 tmoslp softclock 65074 356510 0 0 3 0x40014200 idle0 1 283440 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 58902 (syz-executor) thread 0xffff80003c3b8550 (43129) shared rwlock vmmaplk r = 0 (0xfffff8006cd49308) #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_wire+0x116 uvm_fault_unwire sys/uvm/uvm_fault.c:1723 [inline] #2 uvm_fault_wire+0x116 sys/uvm/uvm_fault.c:1706 #3 uvm_vslock_device+0x112 sys/uvm/uvm_glue.c:169 #4 physio+0x257 sys/kern/kern_physio.c:139 #5 spec_write+0x11f sys/kern/spec_vnops.c:302 #6 VOP_WRITE+0x101 sys/kern/vfs_vops.c:245 #7 vn_write+0x1d3 sys/kern/vfs_vnops.c:414 #8 dofilewritev+0x2bd sys/kern/sys_generic.c:384 #9 sys_write+0xa2 sys/kern/sys_generic.c:300 #10 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] #10 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:783 #11 Xsyscall+0x128 exclusive kernel_lock &kernel_lock r = 0 (0xffffffff83a6f680) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 __mp_acquire_count+0x58 sys/kern/kern_lock.c:-1 #2 sleep_finish+0x2d8 sys/kern/kern_synch.c:369 #3 rw_do_enter_read+0x309 sys/kern/kern_rwlock.c:-1 #4 uvmfault_lookup+0x122 sys/uvm/uvm_fault.c:1880 #5 uvm_fault_check+0x4f sys/uvm/uvm_fault.c:693 #6 uvm_fault+0x106 sys/uvm/uvm_fault.c:627 #7 uvm_fault_wire+0x73 sys/uvm/uvm_fault.c:1703 #8 uvm_vslock_device+0x112 sys/uvm/uvm_glue.c:169 #9 physio+0x257 sys/kern/kern_physio.c:139 #10 spec_write+0x11f sys/kern/spec_vnops.c:302 #11 VOP_WRITE+0x101 sys/kern/vfs_vops.c:245 #12 vn_write+0x1d3 sys/kern/vfs_vnops.c:414 #13 dofilewritev+0x2bd sys/kern/sys_generic.c:384 #14 sys_write+0xa2 sys/kern/sys_generic.c:300 #15 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] #15 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:783 #16 Xsyscall+0x128 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 11054 12085K 12085K 166960K 12145 0 pcb 17 12K 12K 166960K 18 0 rtable 227 6K 6K 166960K 337 0 pf 34 17K 18K 166960K 45 0 ifaddr 42 7K 7K 166960K 44 0 ifgroup 55 2K 2K 166960K 55 0 sysctl 1 1K 9K 166960K 5 0 counters 70 37K 37K 166960K 70 0 ioctlops 0 0K 4K 166960K 1482 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1288 81K 81K 166960K 1359 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 4 0K 0K 166960K 4 0 dirhash 12 2K 2K 166960K 12 0 ACPI 1734 201K 291K 166960K 11964 0 file desc 20 73K 93K 166960K 133 0 proc 77 131K 164K 166960K 552 0 subproc 72 4K 4K 166960K 72 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 in_multi 95 7K 7K 166960K 95 0 ether_multi 1 0K 0K 166960K 1 0 mrt 0 0K 0K 166960K 1 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 43 201K 201K 166960K 43 0 exec 0 0K 1K 166960K 391 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 221 153K 160K 166960K 3118 0 UVM aobj 4 2K 2K 166960K 4 0 pinsyscall 45 90K 103K 166960K 1318 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 NDP 27 2K 2K 166960K 27 0 temp 34 9114K 9120K 166960K 3938 0 kqueue 13 20K 20K 166960K 25 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 35 0 32 1 0 1 1 0 8 0 rtentry 176 106 0 1 5 0 5 5 0 8 0 unpcb 144 39 0 22 1 0 1 1 0 8 0 syncache 336 4 0 4 1 0 1 1 0 8 1 tcpcb 736 10 0 6 1 0 1 1 0 8 0 arp 136 18 0 0 1 0 1 1 0 8 0 inpcb 328 71 0 61 1 0 1 1 0 8 0 nd6 152 20 0 0 1 0 1 1 0 8 0 kcovpl 48 8 0 0 1 0 1 1 0 8 0 pffrag 232 1 0 0 1 0 1 1 0 482 0 pffrnode 88 1 0 0 1 0 1 1 0 8 0 pffrent 40 1 0 0 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 18 0 0 1 0 1 1 0 8 0 pfstkey 128 18 0 0 1 0 1 1 0 8 0 pfstate 448 18 0 0 2 0 2 2 0 8 0 pfrule 1360 21 0 15 2 0 2 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 434 0 0 28 0 28 28 0 8 0 art_table 40 435 0 0 5 0 5 5 0 8 0 art_node 32 106 0 10 1 0 1 1 0 8 0 semupl 112 1 0 1 1 0 1 1 0 8 1 semapl 72 2 0 0 1 0 1 1 0 8 0 shmpl 112 1 0 0 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1565 0 99 92 0 92 92 0 8 0 ffsino 296 1565 0 99 113 0 113 113 0 8 0 nchpl 144 1756 0 57 64 0 64 64 0 8 0 vnodes 216 1651 0 0 92 0 92 92 0 8 0 namei 1024 5443 0 5443 1 0 1 1 0 8 1 percpumem 16 51 0 0 1 0 1 1 0 8 0 kstatmem 264 27 0 0 2 0 2 2 0 8 0 scxspl 216 6292 0 6292 4 2 2 3 1 8 2 plimitpl 152 31 0 12 1 0 1 1 0 8 0 sigapl 424 462 0 412 7 0 7 7 0 8 1 knotepl 120 51 0 0 2 0 2 2 0 8 0 kqueuepl 224 21 0 12 1 0 1 1 0 8 0 pipepl 344 130 0 103 3 0 3 3 0 8 0 fdescpl 528 446 0 412 3 0 3 3 0 8 0 filepl 160 1587 0 1367 10 0 10 10 0 8 0 lockfpl 104 6 0 4 1 0 1 1 0 8 0 lockfspl 48 4 0 2 1 0 1 1 0 8 0 sessionpl 144 24 0 15 1 0 1 1 0 8 0 pgrppl 48 32 0 15 1 0 1 1 0 8 0 ucredpl 104 97 0 82 1 0 1 1 0 8 0 zombiepl 144 412 0 412 1 0 1 1 0 8 1 processpl 1232 462 0 412 5 0 5 5 0 8 0 procpl 664 470 0 413 5 0 5 5 0 8 0 sockpl 752 145 0 115 4 0 4 4 0 8 1 mcl64k 65536 1 0 0 1 0 1 1 0 8 0 mcl16k 16384 1 0 0 1 0 1 1 0 8 0 mcl9k128 9344 1 0 0 1 0 1 1 0 8 0 mcl8k 8192 2 0 0 1 0 1 1 0 8 0 mcl4k 4096 121 0 0 16 0 16 16 0 8 0 mcl2k 2048 17 0 0 3 0 3 3 0 8 0 mextrefs 64 17 0 0 1 0 1 1 0 8 0 mtagpl 96 1 0 0 1 0 1 1 0 8 0 mbufpl 256 129 0 0 9 0 9 9 0 8 0 bufpl 272 2279 0 105 145 0 145 145 0 8 0 anonpl 32 5073 0 0 41 0 41 41 0 247 0 amapchunkpl 152 8048 0 7620 18 1 17 17 0 158 0 amappl16 200 960 0 864 7 0 7 7 0 8 0 amappl15 192 6 0 6 1 0 1 1 0 8 1 amappl14 184 439 0 435 1 0 1 1 0 8 0 amappl13 176 124 0 112 1 0 1 1 0 8 0 amappl12 168 704 0 673 2 0 2 2 0 8 0 amappl11 160 2 0 2 1 0 1 1 0 8 1 amappl10 152 74 0 59 1 0 1 1 0 8 0 amappl9 144 284 0 284 1 0 1 1 0 8 1 amappl8 136 102 0 100 1 0 1 1 0 8 0 amappl7 128 147 0 134 1 0 1 1 0 8 0 amappl6 120 152 0 147 1 0 1 1 0 8 0 amappl5 112 96 0 86 1 0 1 1 0 8 0 amappl4 104 296 0 276 1 0 1 1 0 8 0 amappl3 96 1452 0 1350 3 0 3 3 0 8 0 amappl2 88 552 0 494 2 0 2 2 0 8 0 amappl1 80 10410 0 9798 15 0 15 15 0 8 0 amappl 88 2376 0 2228 4 0 4 4 0 92 0 uvmvnodes 80 100 0 0 3 0 3 3 0 8 0 dma4096 4096 1 0 1 1 1 0 1 0 8 0 dma2048 2048 1 0 1 1 0 1 1 0 8 1 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 24 446 0 412 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 446 0 412 1 0 1 1 0 8 0 vmmpekpl 168 5710 0 5680 2 0 2 2 0 8 0 vmmpepl 168 37635 0 35687 87 0 87 87 0 357 0 vmsppl 488 445 0 412 5 0 5 5 0 8 0 rwobjpl 80 13655 0 12543 24 0 24 24 0 8 0 pdppl 4096 899 0 824 101 16 85 85 0 8 10 pvpl 32 11079 0 0 90 0 90 90 0 265 0 pmappl 256 445 0 412 3 0 3 3 0 8 0 extentpl 40 46 0 28 1 0 1 1 0 8 0 phpool 112 415 0 18 12 0 12 12 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffffffff838ebff0) 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 __sanitizer_cov_trace_cmp8(67cc4000,0) at __sanitizer_cov_trace_cmp8+0x1d kd_curproc sys/dev/kcov.c:580 [inline] __sanitizer_cov_trace_cmp8(67cc4000,0) at __sanitizer_cov_trace_cmp8+0x1d sys/dev/kcov.c:212 uvm_pmr_size_RBT_COMPARE(fffff800086ee1c0,fffff80008a23098) at uvm_pmr_size_RBT_COMPARE+0xc1 uvm_pmr_addr_cmp sys/uvm/uvm_pmemrange.c:236 [inline] uvm_pmr_size_RBT_COMPARE(fffff800086ee1c0,fffff80008a23098) at uvm_pmr_size_RBT_COMPARE+0xc1 uvm_pmr_size_cmp sys/uvm/uvm_pmemrange.c:251 [inline] uvm_pmr_size_RBT_COMPARE(fffff800086ee1c0,fffff80008a23098) at uvm_pmr_size_RBT_COMPARE+0xc1 sys/uvm/uvm_pmemrange.c:112 _rb_insert(ffffffff838658a0,fffff80004904008,fffff800086ee1c0) at _rb_insert+0x7b sys/kern/subr_tree.c:414 uvm_pmr_freepages(fffff800086ee118,1) at uvm_pmr_freepages+0x372 _atomic_add_int sys/arch/amd64/compile/SYZKALLER/obj/machine/atomic.h:171 [inline] uvm_pmr_freepages(fffff800086ee118,1) at uvm_pmr_freepages+0x372 sys/uvm/uvm_pmemrange.c:1339 uvm_anfree(fffff80067cf7520) at uvm_anfree+0xe9 sys/uvm/uvm_anon.c:112 amap_wipeout(fffff8006d87f658) at amap_wipeout+0x1d6 sys/uvm/uvm_amap.c:-1 uvm_unmap_detach(ffff80003c3e3a10,0) at uvm_unmap_detach+0x8a sys/uvm/uvm_map.c:1359 sys_munmap(ffff800045fefca0,ffff80003c3e3b50,ffff80003c3e3aa0) at sys_munmap+0x329 sys/uvm/uvm_mmap.c:544 syscall(ffff80003c3e3b50) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c3e3b50) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x8d2a5a264a0, count: 2 ddb{0}> trace x86_ipi_db(ffffffff838ebff0) 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 __sanitizer_cov_trace_cmp8(67cc4000,0) at __sanitizer_cov_trace_cmp8+0x1d kd_curproc sys/dev/kcov.c:580 [inline] __sanitizer_cov_trace_cmp8(67cc4000,0) at __sanitizer_cov_trace_cmp8+0x1d sys/dev/kcov.c:212 uvm_pmr_size_RBT_COMPARE(fffff800086ee1c0,fffff80008a23098) at uvm_pmr_size_RBT_COMPARE+0xc1 uvm_pmr_addr_cmp sys/uvm/uvm_pmemrange.c:236 [inline] uvm_pmr_size_RBT_COMPARE(fffff800086ee1c0,fffff80008a23098) at uvm_pmr_size_RBT_COMPARE+0xc1 uvm_pmr_size_cmp sys/uvm/uvm_pmemrange.c:251 [inline] uvm_pmr_size_RBT_COMPARE(fffff800086ee1c0,fffff80008a23098) at uvm_pmr_size_RBT_COMPARE+0xc1 sys/uvm/uvm_pmemrange.c:112 _rb_insert(ffffffff838658a0,fffff80004904008,fffff800086ee1c0) at _rb_insert+0x7b sys/kern/subr_tree.c:414 uvm_pmr_freepages(fffff800086ee118,1) at uvm_pmr_freepages+0x372 _atomic_add_int sys/arch/amd64/compile/SYZKALLER/obj/machine/atomic.h:171 [inline] uvm_pmr_freepages(fffff800086ee118,1) at uvm_pmr_freepages+0x372 sys/uvm/uvm_pmemrange.c:1339 uvm_anfree(fffff80067cf7520) at uvm_anfree+0xe9 sys/uvm/uvm_anon.c:112 amap_wipeout(fffff8006d87f658) at amap_wipeout+0x1d6 sys/uvm/uvm_amap.c:-1 uvm_unmap_detach(ffff80003c3e3a10,0) at uvm_unmap_detach+0x8a sys/uvm/uvm_map.c:1359 sys_munmap(ffff800045fefca0,ffff80003c3e3b50,ffff80003c3e3aa0) at sys_munmap+0x329 sys/uvm/uvm_mmap.c:544 syscall(ffff80003c3e3b50) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c3e3b50) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x8d2a5a264a0, count: -13 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(ffffffff83508eac) at panic+0x1e5 sys/kern/subr_prf.c:198 uvm_fault_unwire_locked(fffff8006cd49208,2000006f0000,2000006f2000) at uvm_fault_unwire_locked+0x4be uvm_fault_wire(fffff8006cd49208,2000006f0000,200000701000,1) at uvm_fault_wire+0x12d uvm_fault_unwire sys/uvm/uvm_fault.c:1724 [inline] uvm_fault_wire(fffff8006cd49208,2000006f0000,200000701000,1) at uvm_fault_wire+0x12d sys/uvm/uvm_fault.c:1706 uvm_vslock_device(ffff80003c3b8550,2000006f04c0,10000,1,ffff80003c3d1298) at uvm_vslock_device+0x112 sys/uvm/uvm_glue.c:169 physio(ffffffff81224b20,d02,0,ffffffff81225350,ffff80003c3d1578) at physio+0x257 sys/kern/kern_physio.c:139 spec_write(ffff80003c3d13c0) at spec_write+0x11f sys/kern/spec_vnops.c:302 VOP_WRITE(fffff8006cee10d8,ffff80003c3d1578,5,fffff800097fd820) at VOP_WRITE+0x101 sys/kern/vfs_vops.c:245 vn_write(fffff8006cda5900,ffff80003c3d1578,0) at vn_write+0x1d3 sys/kern/vfs_vnops.c:414 dofilewritev(ffff80003c3b8550,5,ffff80003c3d1578,0,ffff80003c3d1630) at dofilewritev+0x2bd sys/kern/sys_generic.c:384 sys_write(ffff80003c3b8550,ffff80003c3d16e0,ffff80003c3d1630) at sys_write+0xa2 sys/kern/sys_generic.c:300 syscall(ffff80003c3d16e0) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c3d16e0) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x8d34e2f5c40, count: 2 ddb{1}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff83508eac) at panic+0x1e5 sys/kern/subr_prf.c:198 uvm_fault_unwire_locked(fffff8006cd49208,2000006f0000,2000006f2000) at uvm_fault_unwire_locked+0x4be uvm_fault_wire(fffff8006cd49208,2000006f0000,200000701000,1) at uvm_fault_wire+0x12d uvm_fault_unwire sys/uvm/uvm_fault.c:1724 [inline] uvm_fault_wire(fffff8006cd49208,2000006f0000,200000701000,1) at uvm_fault_wire+0x12d sys/uvm/uvm_fault.c:1706 uvm_vslock_device(ffff80003c3b8550,2000006f04c0,10000,1,ffff80003c3d1298) at uvm_vslock_device+0x112 sys/uvm/uvm_glue.c:169 physio(ffffffff81224b20,d02,0,ffffffff81225350,ffff80003c3d1578) at physio+0x257 sys/kern/kern_physio.c:139 spec_write(ffff80003c3d13c0) at spec_write+0x11f sys/kern/spec_vnops.c:302 VOP_WRITE(fffff8006cee10d8,ffff80003c3d1578,5,fffff800097fd820) at VOP_WRITE+0x101 sys/kern/vfs_vops.c:245 vn_write(fffff8006cda5900,ffff80003c3d1578,0) at vn_write+0x1d3 sys/kern/vfs_vnops.c:414 dofilewritev(ffff80003c3b8550,5,ffff80003c3d1578,0,ffff80003c3d1630) at dofilewritev+0x2bd sys/kern/sys_generic.c:384 sys_write(ffff80003c3b8550,ffff80003c3d16e0,ffff80003c3d1630) at sys_write+0xa2 sys/kern/sys_generic.c:300 syscall(ffff80003c3d16e0) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c3d16e0) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x8d34e2f5c40, count: -13