uvm_fault(0xffffffff839f41a8, 0xffff8000293b2008, 0, 1) -> d kernel: page fault trap, code=0 Stopped at ffs2_balloc+0xa0d: movq 0(%rcx,%rax,8),%r14 TID PID UID PRFLAGS PFLAGS CPU COMMAND *489335 23329 0 0x2 0x1 1K syz-executor ffs2_balloc(fffffd80761e2ce0,3427d,50,fffffd80097fd340,1,ffff80002a308ab8) at ffs2_balloc+0xa0d sys/ufs/ffs/ffs_balloc.c:614 ffs_write(ffff80002a308b40) at ffs_write+0x4f9 sys/ufs/ffs/ffs_vnops.c:345 VOP_WRITE(fffffd805f618a50,ffff80002a308bf0,3,fffffd80097fd340) at VOP_WRITE+0x101 sys/kern/vfs_vops.c:245 ktrwriteraw(ffff8000ffffc008,fffffd805f618a50,fffffd80097fd340,ffff80002a308cc0,ffff80002a308ca0) at ktrwriteraw+0x1be sys/kern/kern_ktrace.c:691 ktrsysret(ffff8000ffffc008,5b,0,ffff80002a308d90) at ktrsysret+0x192 ktrwrite2 sys/kern/kern_ktrace.c:-1 [inline] ktrsysret(ffff8000ffffc008,5b,0,ffff80002a308d90) at ktrsysret+0x192 sys/kern/kern_ktrace.c:209 syscall(ffff80002a308e40) at syscall+0xa51 mi_syscall_return sys/sys/syscall_mi.h:204 [inline] syscall(ffff80002a308e40) at syscall+0xa51 sys/arch/amd64/amd64/trap.c:804 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x78550b802ce0, count: 8 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(0xffffffff839f41a8, 0xffff8000293b2008, 0, 1) -> d ddb{1}> trace ffs2_balloc(fffffd80761e2ce0,3427d,50,fffffd80097fd340,1,ffff80002a308ab8) at ffs2_balloc+0xa0d sys/ufs/ffs/ffs_balloc.c:614 ffs_write(ffff80002a308b40) at ffs_write+0x4f9 sys/ufs/ffs/ffs_vnops.c:345 VOP_WRITE(fffffd805f618a50,ffff80002a308bf0,3,fffffd80097fd340) at VOP_WRITE+0x101 sys/kern/vfs_vops.c:245 ktrwriteraw(ffff8000ffffc008,fffffd805f618a50,fffffd80097fd340,ffff80002a308cc0,ffff80002a308ca0) at ktrwriteraw+0x1be sys/kern/kern_ktrace.c:691 ktrsysret(ffff8000ffffc008,5b,0,ffff80002a308d90) at ktrsysret+0x192 ktrwrite2 sys/kern/kern_ktrace.c:-1 [inline] ktrsysret(ffff8000ffffc008,5b,0,ffff80002a308d90) at ktrsysret+0x192 sys/kern/kern_ktrace.c:209 syscall(ffff80002a308e40) at syscall+0xa51 mi_syscall_return sys/sys/syscall_mi.h:204 [inline] syscall(ffff80002a308e40) at syscall+0xa51 sys/arch/amd64/amd64/trap.c:804 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x78550b802ce0, count: -7 ddb{1}> show registers rdi 0 rsi 0 rbp 0xffff80002a308a60 rbx 0 rdx 0 rcx 0xffff8000293b2000 rax 0x1 r8 0xffffffffffffffff r9 0xffff80002a308ab8 r10 0xedb4ca3cf9f18671 r11 0xa9c0a65d98b7c96b r12 0x1 r13 0xffff800000c31800 r14 0xffff80002a3088f0 r15 0xfffffd8061396130 rip 0xffffffff81685ccd ffs2_balloc+0xa0d cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80002a3088e0 ss 0 ffs2_balloc+0xa0d: movq 0(%rcx,%rax,8),%r14 ddb{1}> show proc PROC (syz-executor) tid=489335 pid=23329 tcnt=1 stat=onproc flags process=2 proc=1 runpri=32, usrpri=50, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff8000ffffdc90,0xffff8000ffffcfa8 process=0xffff8000ffff74f8 user=0xffff80002a303000, vmspace=0xfffffd806f5afd60 estcpu=36, cpticks=41, pctcpu=0.14, user=1, sys=40, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 91825 405100 12974 0 2 0 syz-executor 91825 178820 12974 0 3 0x4000080 fsleep syz-executor 65110 214956 44217 0 2 0 syz-executor 65110 364930 44217 0 3 0x4000080 fsleep syz-executor 38978 149671 63148 0 2 0 syz-executor 3668 81626 23329 0 2 0x1 syz-executor 3668 131384 23329 0 3 0x4000080 fsleep syz-executor 3668 200492 23329 0 3 0x4000080 fsleep syz-executor 44217 242166 27599 0 2 0xc82 syz-executor 32826 510067 0 0 3 0x14280 nfsidl nfsio 12778 260663 0 0 3 0x14280 nfsidl nfsio 14917 348070 0 0 3 0x14280 nfsidl nfsio 64244 3475 0 0 3 0x14280 nfsidl nfsio 66213 342007 0 0 3 0x14280 nfsidl nfsio 90930 467823 0 0 3 0x14280 nfsidl nfsio 7613 68831 0 0 3 0x14280 nfsidl nfsio 8838 508228 0 0 3 0x14280 nfsidl nfsio 76223 209791 0 0 3 0x14280 nfsidl nfsio 72117 54681 0 0 3 0x14280 nfsidl nfsio 1110 280119 0 0 3 0x14280 nfsidl nfsio 84598 69122 0 0 3 0x14280 nfsidl nfsio 51396 286676 0 0 3 0x14280 nfsidl nfsio 50730 217647 0 0 3 0x14280 nfsidl nfsio 55241 39805 0 0 3 0x14280 nfsidl nfsio 28895 403309 0 0 3 0x14280 nfsidl nfsio 60540 85276 0 0 3 0x14280 nfsidl nfsio 6809 188085 0 0 3 0x14280 nfsidl nfsio 65063 70166 0 0 3 0x14280 nfsidl nfsio 26358 367459 0 0 3 0x14280 nfsidl nfsio 11055 436955 0 0 3 0x14200 acct acct 46986 101942 89470 0 3 0x100082 sbwait arp 89470 484410 48809 0 3 0x10008a sigsusp sh 63148 274213 27599 0 2 0x3 syz-executor 78258 97720 27599 0 2 0x10000c82 syz-executor 33439 185883 27599 0 2 0xc82 syz-executor *23329 489335 27599 0 7 0x3 syz-executor 12974 280428 27599 0 2 0xc82 syz-executor 48809 106921 27599 0 3 0x82 wait syz-executor 27599 33944 72373 0 3 0x82 wait syz-executor 72373 490473 96476 0 3 0x10008a sigsusp ksh 96476 432126 41797 0 3 0x98 kqread sshd-session 41797 367996 77301 0 3 0x92 kqread sshd-session 23025 81692 1 0 3 0x100083 ttyopn getty 77301 128562 1 0 3 0x88 kqread sshd 45654 296596 51698 74 3 0x1100092 bpf pflogd 51698 240599 1 0 3 0x80 sbwait pflogd 40061 254688 39203 73 3 0x1100090 kqread syslogd 39203 35177 1 0 3 0x100082 sbwait syslogd 47985 338255 1 0 3 0x100080 kqread resolvd 10714 20875 0 0 3 0x14200 bored smr 27432 21282 0 0 3 0x14200 pgzero zerothread 31455 133593 0 0 3 0x14200 aiodoned aiodoned 81502 281086 0 0 3 0x14200 syncer update 9929 215106 0 0 3 0x14200 cleaner cleaner 46978 463943 0 0 3 0x14200 reaper reaper 54822 155367 0 0 3 0x14200 pgdaemon pagedaemon 311 168306 0 0 3 0x14200 bored viomb 9621 183638 0 0 3 0x40014200 acpi0 acpi0 43302 417202 0 0 3 0x40014200 idle1 66638 438752 0 0 3 0x14200 bored softnet1 44655 170386 0 0 3 0x14200 bored softnet0 2883 59948 0 0 3 0x14200 bored systqmp 16223 440214 0 0 3 0x14200 bored systq 55897 34116 0 0 3 0x14200 tmoslp softclockmp 81094 301653 0 0 3 0x40014200 tmoslp softclock 43821 470980 0 0 3 0x40014200 idle0 1 501600 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks CPU 0: exclusive mutex &pmap->pm_mtx r = 0 (0xfffffd806c6da410) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 mtx_enter+0x4b4 sys/kern/kern_lock.c:487 #2 pmap_do_remove+0xa9 rcr3 sys/arch/amd64/compile/SYZKALLER/obj/machine/cpufunc.h:139 [inline] #2 pmap_do_remove+0xa9 pmap_map_ptes sys/arch/amd64/amd64/pmap.c:437 [inline] #2 pmap_do_remove+0xa9 sys/arch/amd64/amd64/pmap.c:1824 #3 uvm_unmap_kill_entry_withlock+0x269 sys/uvm/uvm_map.c:1869 #4 uvm_map_teardown+0x117 uvm_map_addr_RBT_LEFT sys/uvm/uvm_map.h:-1 [inline] #4 uvm_map_teardown+0x117 sys/uvm/uvm_map.c:2497 #5 exit1+0x6fc sys/kern/kern_exit.c:260 #6 sys_exit+0x1a sys/kern/kern_exit.c:-1 #7 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #7 syscall+0xb17 sys/arch/amd64/amd64/trap.c:783 #8 Xsyscall+0x128 Process 23329 (syz-executor) thread 0xffff8000ffffc008 (489335) exclusive rrwlock inode r = 0 (0xfffffd80761e2d80) #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:570 #5 vget+0x2a2 sys/kern/vfs_subr.c:686 #6 ktrwriteraw+0x175 sys/kern/kern_ktrace.c:688 #7 ktrsysret+0x192 ktrwrite2 sys/kern/kern_ktrace.c:-1 [inline] #7 ktrsysret+0x192 sys/kern/kern_ktrace.c:209 #8 syscall+0xa51 mi_syscall_return sys/sys/syscall_mi.h:204 [inline] #8 syscall+0xa51 sys/arch/amd64/amd64/trap.c:804 #9 Xsyscall+0x128 exclusive kernel_lock &kernel_lock r = 0 (0xffffffff839e81c0) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 ktrsysret+0xde ktrwrite2 sys/kern/kern_ktrace.c:-1 [inline] #1 ktrsysret+0xde sys/kern/kern_ktrace.c:209 #2 syscall+0xa51 mi_syscall_return sys/sys/syscall_mi.h:204 [inline] #2 syscall+0xa51 sys/arch/amd64/amd64/trap.c:804 #3 Xsyscall+0x128 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 11068 12110K 13964K 166960K 13124 0 pcb 17 13K 14K 166960K 186 0 rtable 172 8K 9K 166960K 476 0 pf 39 18K 82K 166960K 203 0 ifaddr 37 6K 7K 166960K 108 0 ifgroup 59 2K 2K 166960K 168 0 sysctl 3 1K 9K 166960K 7 0 counters 72 37K 38K 166960K 240 0 ioctlops 0 0K 4K 166960K 1814 0 iov 0 0K 16K 166960K 47 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1469 92K 93K 166960K 2231 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 17 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 109 0 dirhash 12 2K 2K 166960K 18 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 16 57K 93K 166960K 857 0 sigio 0 0K 0K 166960K 8 0 proc 66 83K 164K 166960K 644 0 subproc 72 4K 4K 166960K 81 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 142 0 in_multi 69 4K 6K 166960K 139 0 ether_multi 1 0K 0K 166960K 2 0 mrt 1 0K 0K 166960K 16 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 91 413K 413K 166960K 91 0 exec 0 0K 1K 166960K 501 0 fusefs mount 1 32K 32K 166960K 1 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 203 128K 172K 166960K 9658 0 UVM aobj 34 6K 6K 166960K 35 0 pinsyscall 36 72K 106K 166960K 2034 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 42 0 NDP 13 0K 1K 166960K 77 0 temp 51 9077K 9156K 166960K 35422 0 kqueue 7 12K 28K 166960K 207 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 26 0 0 1 0 1 1 0 8 0 rtpcb 120 109 0 107 2 1 1 2 0 8 0 rtentry 176 142 0 75 5 0 5 5 0 8 0 unpcb 144 764 0 754 11 5 6 6 0 8 5 syncache 336 6 0 6 2 2 0 1 0 8 0 tcpqe 32 1 0 1 1 1 0 1 0 8 0 tcpcb 736 202 0 197 4 3 1 4 0 8 0 arp 136 21 0 10 1 0 1 1 0 8 0 ipq 40 3 0 2 1 0 1 1 0 8 0 ipqe 40 6 0 4 1 0 1 1 0 8 0 inpcb 328 773 0 766 11 5 6 7 0 8 5 ip6q 72 3 0 1 1 0 1 1 0 8 0 ip6af 40 5 0 3 1 0 1 1 0 8 0 nd6 152 30 0 13 1 0 1 1 0 8 0 pkpcb 40 2 0 2 2 1 1 1 0 8 1 kcovpl 48 9 0 1 1 0 1 1 0 8 0 ppxss 1192 78 0 78 2 1 1 1 0 8 1 pppxif 1576 2 0 2 1 1 0 1 0 8 0 pfstscr 40 2 0 2 2 2 0 1 0 8 0 pffrag 232 1 0 1 1 1 0 1 0 482 0 pffrnode 88 1 0 1 1 1 0 1 0 8 0 pffrent 40 2 0 2 1 1 0 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 pfrktable 1344 3 0 3 1 0 1 1 0 8 1 pfsrclim 320 1 0 1 1 1 0 1 0 8 0 pfanchor 1288 6 0 4 1 0 1 1 0 8 0 pftag 88 2 0 0 1 0 1 1 0 8 0 pfstitem 24 23 0 10 1 0 1 1 0 8 0 pfstkey 128 26 0 13 1 0 1 1 0 8 0 pfstate 448 24 0 12 3 0 3 3 0 8 0 pfrule 1360 34 0 29 2 1 1 2 0 8 0 art_heap8 4096 2 0 0 2 0 2 2 0 8 0 art_heap4 256 673 0 326 29 5 24 28 0 8 0 art_table 40 675 0 326 5 0 5 5 0 8 0 art_node 32 142 0 83 1 0 1 1 0 8 0 sysvmsgpl 40 7 0 5 2 1 1 1 0 8 0 semapl 112 42 0 32 1 0 1 1 0 8 0 shmpl 112 32 0 1 1 0 1 1 0 8 0 dirhash 1024 21 0 4 3 0 3 3 0 8 0 dino2pl 256 3147 0 1689 92 0 92 92 0 8 0 ffsino 296 3147 0 1689 114 0 114 114 0 8 0 nchpl 144 4421 0 2712 64 0 64 64 0 8 0 rtmask 32 11 0 11 3 2 1 1 0 8 1 vnodes 216 3649 0 0 203 0 203 203 0 8 0 namei 1024 14612 0 14612 4 1 3 3 0 8 3 percpumem 16 135 0 84 1 0 1 1 0 8 0 pfiaddrpl 120 1 0 1 1 0 1 1 0 8 1 kstatmem 264 122 0 92 3 0 3 3 0 8 0 scsiplug 72 1 0 1 1 1 0 1 0 8 0 scxspl 216 18723 0 18723 11 5 6 8 1 8 6 plimitpl 152 156 0 140 1 0 1 1 0 8 0 sigapl 424 1193 0 1127 9 0 9 9 0 8 0 knotepl 120 509 0 0 15 0 15 15 0 8 0 kqueuepl 224 433 0 427 6 5 1 5 0 8 0 pipepl 344 232 0 205 3 0 3 3 0 8 0 fdescpl 528 1156 0 1129 3 0 3 3 0 8 0 filepl 160 7167 0 6974 22 7 15 16 0 8 5 lockfpl 104 438 0 437 1 0 1 1 0 8 0 lockfspl 48 160 0 159 1 0 1 1 0 8 0 sessionpl 144 122 0 114 1 0 1 1 0 8 0 pgrppl 48 136 0 120 1 0 1 1 0 8 0 ucredpl 104 1297 0 1287 1 0 1 1 0 8 0 zombiepl 144 1420 0 1417 1 0 1 1 0 8 0 processpl 1232 1193 0 1127 6 0 6 6 0 8 0 procpl 664 2410 0 2339 8 0 8 8 0 8 0 sosppl 176 15 0 15 3 2 1 1 0 8 1 sockpl 752 1706 0 1687 30 16 14 17 0 8 11 mcl64k 65536 7 0 0 1 0 1 1 0 8 0 mcl16k 16384 9 0 0 2 0 2 2 0 8 0 mcl9k 9216 3 0 0 1 0 1 1 0 8 0 mcl8k 8192 6 0 0 1 0 1 1 0 8 0 mcl4k 4096 107 0 0 14 0 14 14 0 8 0 mcl2k 2048 27 0 0 4 0 4 4 0 8 0 mtagpl 96 3 0 0 1 0 1 1 0 8 0 mbufpl 256 223 0 0 14 0 14 14 0 8 0 bufpl 280 6719 0 589 439 0 439 439 0 8 0 anonpl 32 11091 0 0 90 0 90 90 0 246 0 amapchunkpl 152 32583 0 32142 40 4 36 36 0 158 10 amappl16 200 4369 0 4202 23 9 14 15 0 8 0 amappl15 192 4 0 4 1 1 0 1 0 8 0 amappl14 184 452 0 450 1 0 1 1 0 8 0 amappl13 176 126 0 116 1 0 1 1 0 8 0 amappl12 168 1414 0 1388 2 0 2 2 0 8 0 amappl11 160 9 0 9 1 1 0 1 0 8 0 amappl10 152 68 0 59 1 0 1 1 0 8 0 amappl9 144 267 0 267 1 1 0 1 0 8 0 amappl8 136 103 0 101 1 0 1 1 0 8 0 amappl7 128 185 0 174 1 0 1 1 0 8 0 amappl6 120 201 0 198 1 0 1 1 0 8 0 amappl5 112 116 0 108 1 0 1 1 0 8 0 amappl4 104 312 0 292 1 0 1 1 0 8 0 amappl3 96 6320 0 6219 5 1 4 4 0 8 0 amappl2 88 558 0 510 2 0 2 2 0 8 0 amappl1 80 13222 0 12703 19 2 17 17 0 8 2 amappl 88 8811 0 8666 5 0 5 5 0 92 0 uvmvnodes 80 116 0 0 3 0 3 3 0 8 0 dma65536 65536 1 0 1 1 1 0 1 0 8 0 dma32768 32768 1 0 1 1 1 0 1 0 8 0 dma4096 4096 1 0 1 1 1 0 1 0 8 0 dma1024 1024 2 0 1 1 0 1 1 0 8 0 dma512 512 1 0 1 1 1 0 1 0 8 0 dma256 256 7 0 7 2 2 0 1 0 8 0 dma128 128 254 0 254 2 2 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 19 0 18 1 0 1 1 0 8 0 aobjpl 72 34 0 1 1 0 1 1 0 8 0 uaddrrnd 24 1156 0 1129 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1156 0 1129 1 0 1 1 0 8 0 vmmpekpl 168 11603 0 11563 3 0 3 3 0 8 1 vmmpepl 168 81359 0 79595 105 6 99 103 0 357 11 vmsppl 488 1155 0 1128 5 0 5 5 0 8 0 rwobjpl 80 24723 0 23614 29 2 27 28 0 8 1 pdppl 4096 2319 0 2256 103 36 67 85 0 8 4 pvpl 32 18322 0 0 149 0 149 149 0 265 1 pmappl 256 1155 0 1128 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 290 0 54 8 0 8 8 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffffffff838f9ff0) 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(fffffd8004a8a3a0,fffffd8004a38320) at __sanitizer_cov_trace_cmp8+0xb kd_curproc sys/dev/kcov.c:580 [inline] __sanitizer_cov_trace_cmp8(fffffd8004a8a3a0,fffffd8004a38320) at __sanitizer_cov_trace_cmp8+0xb sys/dev/kcov.c:212 _rb_nfind(ffffffff8358ae88,fffffd800487f000,fffffd8004a8a3a0) at _rb_nfind+0x78 sys/kern/subr_tree.c:473 uvm_pmr_pnaddr(fffffd800487f000,fffffd8004a8a3a0,ffff80002a274820,ffff80002a274828) at uvm_pmr_pnaddr+0x64 sys/uvm/uvm_pmemrange.c:315 uvm_pmr_insert_addr(fffffd800487f000,fffffd8004a8a3a0,0) at uvm_pmr_insert_addr+0x91 sys/uvm/uvm_pmemrange.c:429 uvm_pmr_freepages(fffffd8004a8a3a0,1) at uvm_pmr_freepages+0x2d1 uvm_pmr_insert sys/uvm/uvm_pmemrange.c:492 [inline] uvm_pmr_freepages(fffffd8004a8a3a0,1) at uvm_pmr_freepages+0x2d1 sys/uvm/uvm_pmemrange.c:1337 uvm_anfree(fffffd805e633250) at uvm_anfree+0xe9 sys/uvm/uvm_anon.c:112 amap_wipeout(fffffd805ffd9820) at amap_wipeout+0x246 sys/uvm/uvm_amap.c:-1 uvm_unmap_detach(ffff80002a2749f0,0) at uvm_unmap_detach+0x8a sys/uvm/uvm_map.c:1359 uvm_map_teardown(fffffd806c6db020) at uvm_map_teardown+0x360 sys/uvm/uvm_map.c:2536 exit1(ffff8000fffe8550,0,0,1) at exit1+0x6fc sys/kern/kern_exit.c:260 sys_exit(ffff8000fffe8550,ffff80002a274bc0,ffff80002a274b10) at sys_exit+0x1a sys/kern/kern_exit.c:-1 end trace frame: 0xffff80002a274bb0, count: 0 ddb{0}> trace x86_ipi_db(ffffffff838f9ff0) 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(fffffd8004a8a3a0,fffffd8004a38320) at __sanitizer_cov_trace_cmp8+0xb kd_curproc sys/dev/kcov.c:580 [inline] __sanitizer_cov_trace_cmp8(fffffd8004a8a3a0,fffffd8004a38320) at __sanitizer_cov_trace_cmp8+0xb sys/dev/kcov.c:212 _rb_nfind(ffffffff8358ae88,fffffd800487f000,fffffd8004a8a3a0) at _rb_nfind+0x78 sys/kern/subr_tree.c:473 uvm_pmr_pnaddr(fffffd800487f000,fffffd8004a8a3a0,ffff80002a274820,ffff80002a274828) at uvm_pmr_pnaddr+0x64 sys/uvm/uvm_pmemrange.c:315 uvm_pmr_insert_addr(fffffd800487f000,fffffd8004a8a3a0,0) at uvm_pmr_insert_addr+0x91 sys/uvm/uvm_pmemrange.c:429 uvm_pmr_freepages(fffffd8004a8a3a0,1) at uvm_pmr_freepages+0x2d1 uvm_pmr_insert sys/uvm/uvm_pmemrange.c:492 [inline] uvm_pmr_freepages(fffffd8004a8a3a0,1) at uvm_pmr_freepages+0x2d1 sys/uvm/uvm_pmemrange.c:1337 uvm_anfree(fffffd805e633250) at uvm_anfree+0xe9 sys/uvm/uvm_anon.c:112 amap_wipeout(fffffd805ffd9820) at amap_wipeout+0x246 sys/uvm/uvm_amap.c:-1 uvm_unmap_detach(ffff80002a2749f0,0) at uvm_unmap_detach+0x8a sys/uvm/uvm_map.c:1359 uvm_map_teardown(fffffd806c6db020) at uvm_map_teardown+0x360 sys/uvm/uvm_map.c:2536 exit1(ffff8000fffe8550,0,0,1) at exit1+0x6fc sys/kern/kern_exit.c:260 sys_exit(ffff8000fffe8550,ffff80002a274bc0,ffff80002a274b10) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff80002a274bc0) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002a274bc0) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x70a0bea00d70, count: -16 ddb{0}> machine ddbcpu 1 Stopped at ffs2_balloc+0xa0d: movq 0(%rcx,%rax,8),%r14 ffs2_balloc(fffffd80761e2ce0,3427d,50,fffffd80097fd340,1,ffff80002a308ab8) at ffs2_balloc+0xa0d sys/ufs/ffs/ffs_balloc.c:614 ffs_write(ffff80002a308b40) at ffs_write+0x4f9 sys/ufs/ffs/ffs_vnops.c:345 VOP_WRITE(fffffd805f618a50,ffff80002a308bf0,3,fffffd80097fd340) at VOP_WRITE+0x101 sys/kern/vfs_vops.c:245 ktrwriteraw(ffff8000ffffc008,fffffd805f618a50,fffffd80097fd340,ffff80002a308cc0,ffff80002a308ca0) at ktrwriteraw+0x1be sys/kern/kern_ktrace.c:691 ktrsysret(ffff8000ffffc008,5b,0,ffff80002a308d90) at ktrsysret+0x192 ktrwrite2 sys/kern/kern_ktrace.c:-1 [inline] ktrsysret(ffff8000ffffc008,5b,0,ffff80002a308d90) at ktrsysret+0x192 sys/kern/kern_ktrace.c:209 syscall(ffff80002a308e40) at syscall+0xa51 mi_syscall_return sys/sys/syscall_mi.h:204 [inline] syscall(ffff80002a308e40) at syscall+0xa51 sys/arch/amd64/amd64/trap.c:804 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x78550b802ce0, count: 8 ddb{1}> trace ffs2_balloc(fffffd80761e2ce0,3427d,50,fffffd80097fd340,1,ffff80002a308ab8) at ffs2_balloc+0xa0d sys/ufs/ffs/ffs_balloc.c:614 ffs_write(ffff80002a308b40) at ffs_write+0x4f9 sys/ufs/ffs/ffs_vnops.c:345 VOP_WRITE(fffffd805f618a50,ffff80002a308bf0,3,fffffd80097fd340) at VOP_WRITE+0x101 sys/kern/vfs_vops.c:245 ktrwriteraw(ffff8000ffffc008,fffffd805f618a50,fffffd80097fd340,ffff80002a308cc0,ffff80002a308ca0) at ktrwriteraw+0x1be sys/kern/kern_ktrace.c:691 ktrsysret(ffff8000ffffc008,5b,0,ffff80002a308d90) at ktrsysret+0x192 ktrwrite2 sys/kern/kern_ktrace.c:-1 [inline] ktrsysret(ffff8000ffffc008,5b,0,ffff80002a308d90) at ktrsysret+0x192 sys/kern/kern_ktrace.c:209 syscall(ffff80002a308e40) at syscall+0xa51 mi_syscall_return sys/sys/syscall_mi.h:204 [inline] syscall(ffff80002a308e40) at syscall+0xa51 sys/arch/amd64/amd64/trap.c:804 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x78550b802ce0, count: -7