uvm_fault(0xfffffd806c02c468, 0x30, 0, 1) -> e kernel: page fault trap, code=0 Stopped at spec_getattr+0x9f: movq 0x30(%rax),%rdi TID PID UID PRFLAGS PFLAGS CPU COMMAND *228526 24488 0 0 0x4000000 0 syz-executor spec_getattr(ffff80002a8bec48) at spec_getattr+0x9f sys/kern/spec_vnops.c:564 VOP_GETATTR(fffffd806c5bbbd0,ffff80002a8becc0,fffffd8007bfb410,ffff80002a8e7790) at VOP_GETATTR+0x7f sys/kern/vfs_vops.c:191 fill_file(ffff800001627800,fffffd806c076878,fffffd806c3bd550,3,0,ffff8000ffffb618,4e6175b70dea45fd,b9d,3) at fill_file+0x5d0 sys/kern/kern_sysctl.c:1513 sysctl_file(ffff80002a8bf118,4,200000000100,ffff80002a8bf148,ffff80002a8e7790) at sysctl_file+0x144a sys/kern/kern_sysctl.c:1826 kern_sysctl(ffff80002a8bf114,5,200000000100,ffff80002a8bf148,0,37,26b0f1089f90c3a2) at kern_sysctl+0x139 sys/kern/kern_sysctl.c:733 sys_sysctl(ffff80002a8e7790,ffff80002a8bf270,ffff80002a8bf1c0) at sys_sysctl+0x3e5 sys/kern/kern_sysctl.c:-1 syscall(ffff80002a8bf270) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80002a8bf270) at syscall+0x962 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x79013647bb0, count: 7 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(0xfffffd806c02c468, 0x30, 0, 1) -> e ddb> trace spec_getattr(ffff80002a8bec48) at spec_getattr+0x9f sys/kern/spec_vnops.c:564 VOP_GETATTR(fffffd806c5bbbd0,ffff80002a8becc0,fffffd8007bfb410,ffff80002a8e7790) at VOP_GETATTR+0x7f sys/kern/vfs_vops.c:191 fill_file(ffff800001627800,fffffd806c076878,fffffd806c3bd550,3,0,ffff8000ffffb618,4e6175b70dea45fd,b9d,3) at fill_file+0x5d0 sys/kern/kern_sysctl.c:1513 sysctl_file(ffff80002a8bf118,4,200000000100,ffff80002a8bf148,ffff80002a8e7790) at sysctl_file+0x144a sys/kern/kern_sysctl.c:1826 kern_sysctl(ffff80002a8bf114,5,200000000100,ffff80002a8bf148,0,37,26b0f1089f90c3a2) at kern_sysctl+0x139 sys/kern/kern_sysctl.c:733 sys_sysctl(ffff80002a8e7790,ffff80002a8bf270,ffff80002a8bf1c0) at sys_sysctl+0x3e5 sys/kern/kern_sysctl.c:-1 syscall(ffff80002a8bf270) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80002a8bf270) at syscall+0x962 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x79013647bb0, count: -8 ddb> show registers rdi 0xffff80003a932000 rsi 0x3812 __ALIGN_SIZE+0x2812 rbp 0xffff80002a8bec30 rbx 0xfffffd806c5bbbd0 rdx 0xffff80003a932000 rcx 0x3811 __ALIGN_SIZE+0x2811 rax 0 r8 0xffffffffffffffff r9 0 r10 0xd8b194690aa2d49e r11 0x6fca8935cb1ccf7b r12 0x8000 __ALIGN_SIZE+0x7000 r13 0xffff80002a8becc0 r14 0xffff80002a8bec48 r15 0xfffffd806c5bbbd0 rip 0xffffffff8101908f spec_getattr+0x9f cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80002a8bec00 ss 0x10 spec_getattr+0x9f: movq 0x30(%rax),%rdi ddb> show proc PROC (syz-executor) tid=228526 pid=24488 tcnt=3 stat=onproc flags process=0 proc=4000000 runpri=32, usrpri=81, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80002a8e6800,0xffff800033d25cc0 process=0xffff8000ffffb618 user=0xffff80002a8ba000, vmspace=0xfffffd806c02c468 estcpu=31, cpticks=0, pctcpu=0.0, user=0, sys=0, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 73900 300315 13764 0 2 0 syz-executor 73900 226975 13764 0 2 0x4000000 syz-executor 8503 256284 12307 0 2 0 syz-executor 8503 500980 12307 0 3 0x4000080 fsleep syz-executor 28984 450495 49009 0 2 0 syz-executor 28984 474224 49009 0 3 0x4000080 fsleep syz-executor 28984 244699 49009 0 2 0x4000000 syz-executor 24488 206377 63807 0 2 0 syz-executor 24488 292236 63807 0 2 0x4000000 syz-executor *24488 228526 63807 0 7 0x4000000 syz-executor 37860 88259 65803 0 2 0 syz-executor 37860 183755 65803 0 2 0x4000000 syz-executor 37860 177278 65803 0 3 0x4000080 fsleep syz-executor 37860 510246 65803 0 2 0x4000000 syz-executor 2235 63137 23619 0 2 0 syz-executor 2235 354600 23619 0 2 0x4000000 syz-executor 2235 506393 23619 0 3 0x4000080 fsleep syz-executor 65803 460561 45905 0 3 0x82 nanoslp syz-executor 63807 195351 45905 0 2 0x3 syz-executor 82634 437152 0 0 3 0x14280 nfsidl nfsio 90249 203272 0 0 3 0x14280 nfsidl nfsio 59954 486310 0 0 3 0x14280 nfsidl nfsio 86857 205349 0 0 3 0x14280 nfsidl nfsio 17697 234503 0 0 3 0x14280 nfsidl nfsio 13523 153051 0 0 3 0x14280 nfsidl nfsio 39938 339217 0 0 3 0x14280 nfsidl nfsio 48378 499442 0 0 3 0x14280 nfsidl nfsio 16313 438186 0 0 3 0x14280 nfsidl nfsio 86107 115438 0 0 3 0x14280 nfsidl nfsio 31623 213783 0 0 3 0x14280 nfsidl nfsio 36846 517609 0 0 3 0x14280 nfsidl nfsio 51721 287070 0 0 3 0x14280 nfsidl nfsio 6795 194901 0 0 3 0x14280 nfsidl nfsio 68208 146208 0 0 3 0x14280 nfsidl nfsio 16549 241335 0 0 3 0x14280 nfsidl nfsio 5562 402742 0 0 3 0x14280 nfsidl nfsio 4756 377956 0 0 3 0x14280 nfsidl nfsio 65697 62679 0 0 3 0x14280 nfsidl nfsio 35848 175129 0 0 3 0x14280 nfsidl nfsio 53529 12203 0 0 3 0x14200 bored sosplice 12307 307967 45905 0 2 0x3 syz-executor 14939 266462 45905 0 2 0x2 syz-executor 49009 15465 45905 0 2 0x3 syz-executor 13764 92004 45905 0 2 0x3 syz-executor 53255 355648 45905 0 2 0x2 syz-executor 23619 137346 45905 0 2 0x3 syz-executor 45905 393575 83670 0 3 0x82 kqread syz-executor 83670 142047 20271 0 3 0x10008a sigsusp ksh 20271 515622 2796 0 3 0x98 kqread sshd-session 2796 303526 29749 0 3 0x92 kqread sshd-session 34062 244309 1 0 3 0x100083 ttyopn getty 29749 102162 1 0 3 0x88 kqread sshd 10786 5152 725 73 3 0x1100090 kqread syslogd 725 475552 1 0 3 0x100082 sbwait syslogd 53003 51303 1 0 3 0x100080 kqread resolvd 3471 159326 44472 77 3 0x100092 kqread dhcpleased 73593 269611 44472 77 3 0x100092 kqread dhcpleased 44472 384733 1 0 3 0x80 kqread dhcpleased 4478 320054 0 0 3 0x14200 bored smr 24413 233563 0 0 2 0x14200 zerothread 70427 47250 0 0 3 0x14200 aiodoned aiodoned 74683 73891 0 0 3 0x14200 syncer update 9706 328274 0 0 3 0x14200 cleaner cleaner 94111 377192 0 0 3 0x14200 reaper reaper 50352 78350 0 0 3 0x14200 pgdaemon pagedaemon 26393 507401 0 0 3 0x14200 bored viomb 88953 494117 0 0 3 0x40014200 acpi0 acpi0 89456 176049 0 0 3 0x14200 bored softnet0 39278 491253 0 0 3 0x14200 smrbar systqmp 10880 484834 0 0 3 0x14200 bored systq 30187 330694 0 0 3 0x40014200 tmoslp softclock 84725 56454 0 0 3 0x40014200 idle0 1 428438 0 0 3 0x80082 wait init 0 0 -1 0 3 0x10010200 scheduler swapper ddb> show all locks No such command ddb> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 11047 12172K 12639K 166960K 13988 0 pcb 17 16K 17K 166960K 372 0 rtable 220 9K 10K 166960K 856 0 pf 30 13K 18K 166960K 179 0 ifaddr 34 6K 8K 166960K 117 0 ifgroup 46 2K 2K 166960K 207 0 sysctl 4 1K 9K 166960K 15 0 counters 31 17K 18K 166960K 108 0 ioctlops 0 0K 4K 166960K 350 0 iov 0 0K 20K 166960K 92 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1416 89K 90K 166960K 2812 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 3 5K 17K 166960K 32 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 93 0 dirhash 12 2K 3K 166960K 57 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 16 57K 93K 166960K 1652 0 sigio 0 0K 0K 166960K 60 0 proc 60 59K 91K 166960K 663 0 subproc 72 4K 4K 166960K 91 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 335 0 in_multi 73 5K 7K 166960K 194 0 ether_multi 1 0K 0K 166960K 25 0 mrt 1 0K 0K 166960K 27 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 575 0 fusefs mount 1 32K 32K 166960K 1 0 pfkey data 0 0K 0K 166960K 4 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 226 143K 165K 166960K 16903 0 UVM aobj 29 4K 4K 166960K 31 0 pinsyscall 37 74K 96K 166960K 2822 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 121 0 NDP 10 0K 2K 166960K 83 0 temp 81 8649K 8716K 166960K 51296 0 kqueue 14 22K 32K 166960K 306 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 120 179 0 175 1 0 1 1 0 8 0 rtentry 136 295 0 208 4 0 4 4 0 8 0 unpcb 144 1250 0 1233 7 5 2 6 0 8 1 syncache 336 13 0 13 2 1 1 1 0 8 1 tcpqe 32 7 0 7 2 1 1 1 0 8 1 tcpcb 736 703 0 697 13 5 8 8 0 8 7 arp 96 85 0 69 1 0 1 1 0 8 0 ipq 40 5 0 5 1 0 1 1 0 8 1 ipqe 40 7 0 7 1 0 1 1 0 8 1 inpcb 328 1916 0 1904 11 4 7 7 0 8 4 ip6q 72 6 0 6 1 0 1 1 0 8 1 ip6af 40 10 0 10 1 0 1 1 0 8 1 nd6 112 41 0 22 1 0 1 1 0 8 0 pkpcb 40 9 0 9 2 1 1 1 0 8 1 kcovpl 48 10 0 2 1 0 1 1 0 8 0 mppekey 1024 1 0 1 1 1 0 1 0 8 0 ppxss 1072 54 0 54 1 0 1 1 0 8 1 pppxif 1384 10 0 10 2 1 1 1 0 8 1 pfstscr 40 3 0 2 1 0 1 1 0 8 0 pfrktable 1344 6 0 6 2 1 1 1 0 8 1 pfstitem 24 4 0 0 1 0 1 1 0 8 0 pfstkey 128 7 0 3 1 0 1 1 0 8 0 pfstate 384 4 0 2 1 0 1 1 0 8 0 rttmr 136 6 0 6 2 1 1 1 0 8 1 art_heap8 4096 3 0 0 3 0 3 3 0 8 0 art_heap4 256 742 0 337 33 5 28 33 0 8 2 art_table 40 745 0 337 6 0 6 6 0 8 0 art_node 32 290 0 200 2 0 2 2 0 8 0 sysvmsgpl 40 4 0 1 1 0 1 1 0 8 0 semupl 112 3 0 3 1 1 0 1 0 8 0 semapl 112 90 0 80 1 0 1 1 0 8 0 shmpl 112 28 0 2 1 0 1 1 0 8 0 dirhash 1024 49 0 32 3 0 3 3 0 8 0 dino2pl 256 4571 0 3081 95 0 95 95 0 8 0 ffsino 256 4571 0 3081 95 0 95 95 0 8 0 nchpl 144 6923 0 5231 64 0 64 64 0 8 0 rtmask 32 10 0 10 2 1 1 1 0 8 1 vnodes 216 5390 0 0 300 0 300 300 0 8 0 namei 1024 23217 0 23216 4 2 2 2 0 8 1 kstatmem 264 122 0 102 2 0 2 2 0 8 0 scsiplug 72 4 0 4 2 1 1 1 0 8 1 scxspl 216 26389 0 26389 15 7 8 8 1 8 8 plimitpl 152 368 0 351 1 0 1 1 0 8 0 sigapl 424 1989 0 1927 8 0 8 8 0 8 0 knotepl 120 79678 0 79629 44 34 10 24 0 8 5 kqueuepl 184 792 0 782 7 3 4 4 0 8 3 pipepl 304 361 0 334 10 2 8 8 0 8 5 fdescpl 448 1932 0 1904 5 1 4 5 0 8 0 filepl 120 13199 0 12985 23 8 15 17 0 8 8 lockfpl 104 780 0 777 3 1 2 2 0 8 1 lockfspl 48 249 0 246 1 0 1 1 0 8 0 sessionpl 144 31 0 23 1 0 1 1 0 8 0 pgrppl 48 68 0 52 1 0 1 1 0 8 0 ucredpl 104 2527 0 2516 1 0 1 1 0 8 0 zombiepl 144 2449 0 2449 1 0 1 1 0 8 1 processpl 1152 1989 0 1927 5 0 5 5 0 8 0 procpl 664 4487 0 4413 8 0 8 8 0 8 0 sosppl 168 7 0 7 2 1 1 1 0 8 1 sockpl 552 3446 0 3413 17 9 8 13 0 8 5 mcl64k 65536 233 0 233 2 1 1 1 0 8 1 mcl16k 16384 15 0 15 2 1 1 1 0 8 1 mcl12k 12288 5 0 5 2 1 1 1 0 8 1 mcl9k 9216 2 0 2 2 1 1 1 0 8 1 mcl8k 8192 25 0 25 2 1 1 1 0 8 1 mcl4k 4096 4638 0 4582 15 6 9 13 0 8 1 mcl2k 2048 2595 0 2582 6 4 2 6 0 8 0 mtagpl 96 13 0 12 1 0 1 1 0 8 0 mbufpl 256 21218 0 21021 32 8 24 32 0 8 5 bufpl 280 9696 0 3474 445 0 445 445 0 8 0 anonpl 24 303949 0 300353 87 33 54 72 0 187 14 amapchunkpl 152 57093 0 56613 36 9 27 36 0 158 7 amappl16 200 6362 0 6327 48 34 14 28 0 8 8 amappl15 192 5 0 5 1 1 0 1 0 8 0 amappl14 184 64 0 64 1 1 0 1 0 8 0 amappl13 176 433 0 432 1 0 1 1 0 8 0 amappl12 168 2303 0 2266 2 0 2 2 0 8 0 amappl11 160 6 0 6 1 1 0 1 0 8 0 amappl10 152 46 0 36 1 0 1 1 0 8 0 amappl9 144 249 0 249 1 1 0 1 0 8 0 amappl8 136 28 0 26 1 0 1 1 0 8 0 amappl7 128 89 0 87 1 0 1 1 0 8 0 amappl6 120 292 0 280 1 0 1 1 0 8 0 amappl5 112 77 0 68 1 0 1 1 0 8 0 amappl4 104 436 0 410 1 0 1 1 0 8 0 amappl3 96 10111 0 10024 3 0 3 3 0 8 0 amappl2 88 2118 0 2048 2 0 2 2 0 8 0 amappl1 80 17206 0 16667 13 0 13 13 0 8 0 amappl 88 15825 0 15668 5 0 5 5 0 92 1 uvmvnodes 80 5390 0 0 110 0 110 110 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 7 0 7 1 1 0 1 0 8 0 dma128 128 256 0 256 2 1 1 1 0 8 1 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 30 0 2 1 0 1 1 0 8 0 uaddrrnd 24 1932 0 1904 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1932 0 1904 1 0 1 1 0 8 0 vmmpekpl 168 16898 0 16857 3 0 3 3 0 8 0 vmmpepl 168 129048 0 127278 113 17 96 103 0 357 10 vmsppl 368 1931 0 1904 4 1 3 4 0 8 0 rwobjpl 40 40806 0 34532 65 0 65 65 0 8 0 pdppl 4096 3871 0 3808 115 50 65 81 0 8 2 pvpl 32 860931 0 852081 183 59 124 152 0 265 25 pmappl 216 1931 0 1904 3 1 2 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 435 0 89 11 0 11 11 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace spec_getattr(ffff80002a8bec48) at spec_getattr+0x9f sys/kern/spec_vnops.c:564 VOP_GETATTR(fffffd806c5bbbd0,ffff80002a8becc0,fffffd8007bfb410,ffff80002a8e7790) at VOP_GETATTR+0x7f sys/kern/vfs_vops.c:191 fill_file(ffff800001627800,fffffd806c076878,fffffd806c3bd550,3,0,ffff8000ffffb618,4e6175b70dea45fd,b9d,3) at fill_file+0x5d0 sys/kern/kern_sysctl.c:1513 sysctl_file(ffff80002a8bf118,4,200000000100,ffff80002a8bf148,ffff80002a8e7790) at sysctl_file+0x144a sys/kern/kern_sysctl.c:1826 kern_sysctl(ffff80002a8bf114,5,200000000100,ffff80002a8bf148,0,37,26b0f1089f90c3a2) at kern_sysctl+0x139 sys/kern/kern_sysctl.c:733 sys_sysctl(ffff80002a8e7790,ffff80002a8bf270,ffff80002a8bf1c0) at sys_sysctl+0x3e5 sys/kern/kern_sysctl.c:-1 syscall(ffff80002a8bf270) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80002a8bf270) at syscall+0x962 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x79013647bb0, count: -8 ddb> machine ddbcpu 1 No such command ddb> trace spec_getattr(ffff80002a8bec48) at spec_getattr+0x9f sys/kern/spec_vnops.c:564 VOP_GETATTR(fffffd806c5bbbd0,ffff80002a8becc0,fffffd8007bfb410,ffff80002a8e7790) at VOP_GETATTR+0x7f sys/kern/vfs_vops.c:191 fill_file(ffff800001627800,fffffd806c076878,fffffd806c3bd550,3,0,ffff8000ffffb618,4e6175b70dea45fd,b9d,3) at fill_file+0x5d0 sys/kern/kern_sysctl.c:1513 sysctl_file(ffff80002a8bf118,4,200000000100,ffff80002a8bf148,ffff80002a8e7790) at sysctl_file+0x144a sys/kern/kern_sysctl.c:1826 kern_sysctl(ffff80002a8bf114,5,200000000100,ffff80002a8bf148,0,37,26b0f1089f90c3a2) at kern_sysctl+0x139 sys/kern/kern_sysctl.c:733 sys_sysctl(ffff80002a8e7790,ffff80002a8bf270,ffff80002a8bf1c0) at sys_sysctl+0x3e5 sys/kern/kern_sysctl.c:-1 syscall(ffff80002a8bf270) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline] syscall(ffff80002a8bf270) at syscall+0x962 sys/arch/amd64/amd64/trap.c:748 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x79013647bb0, count: -8