uvm_fault(0xfffff580704b4468, 0xf, 0, 1) -> e kernel: page fault trap, code=0 Stopped at ktrops+0x58: movq 0x10(%r14),%r14 TID PID UID PRFLAGS PFLAGS CPU COMMAND * 76350 52541 -1 0x10 0x4000000 0 syz-executor ktrops(ffff80002f09a2c0,ffffffffffffffff,0,80000538,fffff5806e0fa7f0,fffff58007ffdbc8) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:728 [inline] ktrops(ffff80002f09a2c0,ffffffffffffffff,0,80000538,fffff5806e0fa7f0,fffff58007ffdbc8) at ktrops+0x58 sys/kern/kern_ktrace.c:571 doktrace(fffff5806e0fa7f0,4,538,0,ffff80002f09a2c0) at doktrace+0x6bd ktrsetchildren sys/kern/kern_ktrace.c:596 [inline] doktrace(fffff5806e0fa7f0,4,538,0,ffff80002f09a2c0) at doktrace+0x6bd sys/kern/kern_ktrace.c:518 sys_ktrace(ffff80002f09a2c0,ffff80002a751190,ffff80002a7510e0) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:559 syscall(ffff80002a751190) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80002a751190) at syscall+0x962 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x6b945c45960, count: 10 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> ddb> set $lines = 0 ddb> set $maxwidth = 0 ddb> show panic *cpu0: uvm_fault(0xfffff580704b4468, 0xf, 0, 1) -> e ddb> trace ktrops(ffff80002f09a2c0,ffffffffffffffff,0,80000538,fffff5806e0fa7f0,fffff58007ffdbc8) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:728 [inline] ktrops(ffff80002f09a2c0,ffffffffffffffff,0,80000538,fffff5806e0fa7f0,fffff58007ffdbc8) at ktrops+0x58 sys/kern/kern_ktrace.c:571 doktrace(fffff5806e0fa7f0,4,538,0,ffff80002f09a2c0) at doktrace+0x6bd ktrsetchildren sys/kern/kern_ktrace.c:596 [inline] doktrace(fffff5806e0fa7f0,4,538,0,ffff80002f09a2c0) at doktrace+0x6bd sys/kern/kern_ktrace.c:518 sys_ktrace(ffff80002f09a2c0,ffff80002a751190,ffff80002a7510e0) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:559 syscall(ffff80002a751190) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80002a751190) at syscall+0x962 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x6b945c45960, count: -5 ddb> show registers rdi 0xffff8000374cc000 rsi 0x8f3f __ALIGN_SIZE+0x7f3f rbp 0xffff80002a750eb0 rbx 0xfffff58007ffdbc8 rdx 0xffff8000374cc000 rcx 0x8f3e __ALIGN_SIZE+0x7f3e rax 0xffffffff825301e3 ktrops+0x43 r8 0xfffff5806e0fa7f0 r9 0xfffff58007ffdbc8 r10 0xb3495dcb13b8363a r11 0x5a1938d37d3d7231 r12 0xffff80002f09a2c0 r13 0xffffffffffffffff r14 0xffffffffffffffff r15 0x80000538 __kernel_virt_to_phys+0x538 rip 0xffffffff825301f8 ktrops+0x58 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80002a750e30 ss 0x10 ktrops+0x58: movq 0x10(%r14),%r14 ddb> show proc PROC (syz-executor) tid=76350 pid=52541 tcnt=3 stat=onproc flags process=10 proc=4000000 runpri=17, usrpri=86, slppri=17, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80002f09a028,0xffff80002f0a0a88 process=0xffff80002f09db18 user=0xffff80002a74c000, vmspace=0xfffff580704b4468 estcpu=36, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 73311 233823 56033 0 2 0 syz-executor 3686 147144 1 0 3 0x82 nanoslp getty 70125 232534 47399 0 2 0x3000 syz-executor 59194 21843 43540 0 3 0x80 nanoslp syz-executor 59194 370215 43540 0 3 0x4000080 fsleep syz-executor 59194 471274 43540 0 2 0x4000000 syz-executor 59194 64397 43540 0 3 0x4000080 fsleep syz-executor 52541 438897 86572 -1 3 0x90 nanoslp syz-executor 52541 116480 86572 -1 3 0x4000090 fsleep syz-executor *52541 76350 86572 -1 7 0x4000010 syz-executor 81290 222343 86277 0 3 0x80 nanoslp syz-executor 81290 837 86277 0 3 0x4000080 pipewr syz-executor 81290 251437 86277 0 3 0x4000080 fsleep syz-executor 11873 445488 33739 0 3 0x90 nanoslp syz-executor 11873 74256 33739 0 3 0x4000090 lockf syz-executor 11873 335627 33739 0 3 0x4000090 fsleep syz-executor 99554 520784 0 0 3 0x14200 acct acct 56033 355964 48531 0 3 0x82 nanoslp syz-executor 86572 58484 48531 0 3 0x82 nanoslp syz-executor 57611 382432 48531 0 2 0x2 syz-executor 80816 177143 48531 0 2 0x2 syz-executor 47399 18652 48531 0 3 0x82 nanoslp syz-executor 33739 147482 48531 0 3 0x82 nanoslp syz-executor 86277 423905 48531 0 3 0x82 nanoslp syz-executor 43540 69359 48531 0 3 0x82 nanoslp syz-executor 48531 490453 1 0 3 0x82 kqread syz-executor 18193 514376 75304 0 3 0x98 kqread sshd-session 75304 438088 1 0 3 0x92 kqread sshd-session 68619 413907 1 73 3 0x1100090 kqread syslogd 89424 115083 0 0 3 0x14200 bored smr 61020 194243 0 0 2 0x14200 zerothread 87126 394283 0 0 3 0x14200 aiodoned aiodoned 16526 102129 0 0 3 0x14200 syncer update 30313 210259 0 0 3 0x14200 cleaner cleaner 90427 357981 0 0 3 0x14200 reaper reaper 57548 32562 0 0 3 0x14200 pgdaemon pagedaemon 52359 495474 0 0 3 0x14200 bored viomb 70737 153170 0 0 3 0x40014200 acpi0 acpi0 40303 137655 0 0 3 0x14200 bored softnet0 35900 45340 0 0 3 0x14200 bored systqmp 84144 131106 0 0 3 0x14200 bored systq 29283 213723 0 0 3 0x40014200 tmoslp softclock 34439 484642 0 0 3 0x40014200 idle0 1 64079 0 0 2 0x10000082 init 0 0 -1 0 3 0x10200 scheduler swapper ddb> show all locks No such command ddb> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 11057 12105K 12529K 166960K 12239 0 pcb 18 12K 12K 166960K 46 0 rtable 227 7K 7K 166960K 442 0 pf 32 13K 17K 166960K 39 0 ifaddr 40 6K 7K 166960K 46 0 ifgroup 51 2K 2K 166960K 59 0 sysctl 3 1K 9K 166960K 7 0 counters 34 17K 17K 166960K 35 0 ioctlops 0 0K 4K 166960K 109 0 iov 0 0K 16K 166960K 5 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1291 81K 82K 166960K 1426 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 4 0 VM map 2 1K 1K 166960K 2 0 sem 7 0K 0K 166960K 7 0 dirhash 12 2K 2K 166960K 12 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 16 57K 89K 166960K 216 0 sigio 0 0K 0K 166960K 1 0 proc 20 25K 91K 166960K 514 0 subproc 72 4K 4K 166960K 72 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 9 0 in_multi 88 6K 7K 166960K 103 0 ether_multi 1 0K 0K 166960K 2 0 mrt 0 0K 0K 166960K 3 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 211 943K 943K 166960K 211 0 exec 0 0K 1K 166960K 379 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 148 91K 149K 166960K 3636 0 UVM aobj 7 2K 2K 166960K 8 0 pinsyscall 24 48K 91K 166960K 1333 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 4 0 NDP 12 0K 2K 166960K 29 0 temp 38 9106K 9138K 166960K 7317 0 kqueue 6 10K 27K 166960K 37 0 SYN cache 2 16K 16K 166960K 2 0 ddb> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle rtpcb 120 42 0 42 1 0 1 1 0 8 1 rtentry 136 113 0 13 4 0 4 4 0 8 0 unpcb 144 85 0 76 1 0 1 1 0 8 0 syncache 336 4 0 4 1 1 0 1 0 8 0 tcpcb 736 33 0 31 1 0 1 1 0 8 0 arp 96 18 0 2 1 0 1 1 0 8 0 inpcb 328 195 0 191 2 0 2 2 0 8 1 nd6 112 26 0 4 1 0 1 1 0 8 0 pkpcb 40 1 0 1 1 1 0 1 0 8 0 kcovpl 48 8 0 0 1 0 1 1 0 8 0 pfstscr 40 2 0 0 1 0 1 1 0 8 0 pfrktable 1344 1 0 0 1 0 1 1 0 8 0 pfsrclim 320 1 0 0 1 0 1 1 0 8 0 pfstitem 24 2 0 0 1 0 1 1 0 8 0 pfstkey 128 2 0 0 1 0 1 1 0 8 0 pfstate 384 1 0 0 1 0 1 1 0 8 0 pfrule 1360 1 0 1 1 1 0 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 470 0 46 30 0 30 30 0 8 1 art_table 40 471 0 46 5 0 5 5 0 8 0 art_node 32 113 0 22 1 0 1 1 0 8 0 sysvmsgpl 40 1 0 0 1 0 1 1 0 8 0 semapl 72 5 0 0 1 0 1 1 0 8 0 shmpl 112 5 0 1 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1728 0 261 92 0 92 92 0 8 0 ffsino 256 1728 0 261 92 0 92 92 0 8 0 nchpl 144 2033 0 341 64 0 64 64 0 8 1 vnodes 216 1845 0 0 103 0 103 103 0 8 0 namei 1024 6364 0 6364 3 1 2 2 0 8 2 kstatmem 264 27 0 2 2 0 2 2 0 8 0 scxspl 216 8301 0 8301 11 3 8 8 1 8 8 plimitpl 152 105 0 91 1 0 1 1 0 8 0 sigapl 424 517 0 481 6 1 5 6 0 8 0 knotepl 120 5320 0 5289 9 7 2 9 0 8 0 kqueuepl 184 36 0 31 1 0 1 1 0 8 0 pipepl 304 130 0 102 3 0 3 3 0 8 0 fdescpl 448 503 0 482 5 1 4 5 0 8 0 filepl 120 2221 0 2031 11 1 10 10 0 8 2 lockfpl 104 73 0 70 1 0 1 1 0 8 0 lockfspl 48 24 0 22 1 0 1 1 0 8 0 sessionpl 144 27 0 23 1 0 1 1 0 8 0 pgrppl 48 35 0 23 1 0 1 1 0 8 0 ucredpl 104 263 0 253 1 0 1 1 0 8 0 zombiepl 144 483 0 481 2 1 1 1 0 8 0 processpl 1152 517 0 481 4 0 4 4 0 8 0 procpl 664 656 0 611 6 0 6 6 0 8 1 sockpl 552 325 0 312 4 0 4 4 0 8 2 mcl64k 65536 2 0 2 2 1 1 1 0 8 1 mcl8k 8192 8 0 8 1 1 0 1 0 8 0 mcl4k 4096 2592 0 2538 15 7 8 15 0 8 1 mcl2k 2048 209 0 209 3 2 1 2 0 8 1 mtagpl 96 5 0 5 2 1 1 1 0 8 1 mbufpl 256 5220 0 5079 11 1 10 11 0 8 0 bufpl 272 3978 0 104 259 0 259 259 0 8 0 anonpl 24 104811 0 102490 51 2 49 49 0 88 19 amapchunkpl 152 10435 0 10077 27 2 25 25 0 158 3 amappl16 200 1909 0 1880 20 3 17 17 0 8 15 amappl15 192 6 0 5 1 0 1 1 0 8 0 amappl14 184 415 0 415 1 0 1 1 0 8 1 amappl13 176 126 0 122 1 0 1 1 0 8 0 amappl12 168 744 0 725 2 0 2 2 0 8 0 amappl11 160 5 0 5 1 1 0 1 0 8 0 amappl10 152 61 0 58 1 0 1 1 0 8 0 amappl9 144 273 0 273 1 1 0 1 0 8 0 amappl8 136 98 0 98 1 0 1 1 0 8 1 amappl7 128 141 0 136 1 0 1 1 0 8 0 amappl6 120 147 0 147 1 0 1 1 0 8 1 amappl5 112 96 0 92 1 0 1 1 0 8 0 amappl4 104 264 0 258 1 0 1 1 0 8 0 amappl3 96 1977 0 1898 4 0 4 4 0 8 0 amappl2 88 524 0 500 2 0 2 2 0 8 0 amappl1 80 10524 0 10216 13 1 12 13 0 8 0 amappl 88 2879 0 2757 4 0 4 4 0 92 0 uvmvnodes 80 97 0 0 2 0 2 2 0 8 0 dma32768 32768 1 0 1 1 0 1 1 0 8 1 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 7 0 1 1 0 1 1 0 8 0 uaddrrnd 24 503 0 482 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 503 0 482 1 0 1 1 0 8 0 vmmpekpl 168 6052 0 6016 2 0 2 2 0 8 0 vmmpepl 168 41210 0 40041 94 2 92 92 0 357 17 vmsppl 368 502 0 482 4 1 3 4 0 8 0 rwobjpl 40 15205 0 14616 14 1 13 13 0 8 3 pdppl 4096 1012 0 964 100 34 66 78 0 8 18 pvpl 32 249098 0 242945 116 2 114 114 0 265 35 pmappl 216 502 0 482 2 0 2 2 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 628 0 53 17 0 17 17 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace ktrops(ffff80002f09a2c0,ffffffffffffffff,0,80000538,fffff5806e0fa7f0,fffff58007ffdbc8) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:728 [inline] ktrops(ffff80002f09a2c0,ffffffffffffffff,0,80000538,fffff5806e0fa7f0,fffff58007ffdbc8) at ktrops+0x58 sys/kern/kern_ktrace.c:571 doktrace(fffff5806e0fa7f0,4,538,0,ffff80002f09a2c0) at doktrace+0x6bd ktrsetchildren sys/kern/kern_ktrace.c:596 [inline] doktrace(fffff5806e0fa7f0,4,538,0,ffff80002f09a2c0) at doktrace+0x6bd sys/kern/kern_ktrace.c:518 sys_ktrace(ffff80002f09a2c0,ffff80002a751190,ffff80002a7510e0) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:559 syscall(ffff80002a751190) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80002a751190) at syscall+0x962 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x6b945c45960, count: -5 ddb> machine ddbcpu 1 No such command ddb> trace ktrops(ffff80002f09a2c0,ffffffffffffffff,0,80000538,fffff5806e0fa7f0,fffff58007ffdbc8) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:728 [inline] ktrops(ffff80002f09a2c0,ffffffffffffffff,0,80000538,fffff5806e0fa7f0,fffff58007ffdbc8) at ktrops+0x58 sys/kern/kern_ktrace.c:571 doktrace(fffff5806e0fa7f0,4,538,0,ffff80002f09a2c0) at doktrace+0x6bd ktrsetchildren sys/kern/kern_ktrace.c:596 [inline] doktrace(fffff5806e0fa7f0,4,538,0,ffff80002f09a2c0) at doktrace+0x6bd sys/kern/kern_ktrace.c:518 sys_ktrace(ffff80002f09a2c0,ffff80002a751190,ffff80002a7510e0) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:559 syscall(ffff80002a751190) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80002a751190) at syscall+0x962 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x6b945c45960, count: -5