¹j¼õ¬|ÿ ž¨E1\…:uvm_fault(0xfffffd806793cd40, 0xe00, 0, 2) -> e kernel: page fault trap, code=2 Stopped at copyout+0x57: repe movsq (%rsi),%es:(%rdi) TID PID UID PRFLAGS PFLAGS CPU COMMAND * 56464 14477 0 0 0x4000000 0 syz-executor 130524 60571 0 0x14000 0x200 1 reaper copyout() at copyout+0x57 syscall(ffff80003c491640) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c491640) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x119fad7ae60, count: 12 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{0}> ddb{0}> set $lines = 0 ddb{0}> set $maxwidth = 0 ddb{0}> show panic *cpu0: uvm_fault(0xfffffd806793cd40, 0xe00, 0, 2) -> e ddb{0}> trace copyout() at copyout+0x57 syscall(ffff80003c491640) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c491640) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x119fad7ae60, count: -3 ddb{0}> show registers rdi 0xe00 rsi 0xffff80003c4913b0 rbp 0xffff80003c491560 rbx 0x4000a98a rdx 0xffff80003c48c000 rcx 0x4 rax 0x20 r8 0x7f7fffffc000 r9 0 r10 0x5f31bdd643e085c8 r11 0xffffffff82a58b20 copy_fault r12 0x7 r13 0x16 r14 0xffff80003c491640 r15 0xffff80003c4913b0 rip 0xffffffff82a58a47 copyout+0x57 cs 0x8 rflags 0x50202 acpi_pdirpa+0x3c073 rsp 0xffff80003c4912a0 ss 0x10 copyout+0x57: repe movsq (%rsi),%es:(%rdi) ddb{0}> show proc PROC (syz-executor) tid=56464 pid=14477 tcnt=3 stat=onproc flags process=0 proc=4000000 runpri=32, usrpri=50, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80003c41b4a8,0xffff80003c41a7e8 process=0xffff80003c425c10 user=0xffff80003c48c000, vmspace=0xfffffd806793cd40 estcpu=36, cpticks=3, pctcpu=0.0, user=0, sys=3, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 91253 200991 49280 0 2 0 syz-executor 91253 169881 49280 0 3 0x4000080 bell syz-executor 74742 202796 84679 0 2 0 syz-executor 74742 375715 84679 0 3 0x4000080 fsleep syz-executor 74742 332458 84679 0 3 0x4000080 fsleep syz-executor 74742 88720 84679 0 3 0x4000080 fsleep syz-executor 14477 227831 84647 0 2 0 syz-executor *14477 56464 84647 0 7 0x4000000 syz-executor 14477 356724 84647 0 2 0x4000000 syz-executor 53278 315267 68433 0 2 0x480 syz-executor 53278 16406 68433 0 3 0x4000080 sbwait syz-executor 53278 368319 68433 0 3 0x4000000 inode syz-executor 53278 60538 68433 0 3 0x4000000 inode syz-executor 53278 296865 68433 0 3 0x4000080 fsleep syz-executor 77418 245917 66736 0 2 0x480 syz-executor 77418 4529 66736 0 3 0x4000080 fsleep syz-executor 77418 254036 66736 0 3 0x4000080 kqsel syz-executor 77418 151154 66736 0 3 0x4000080 fsleep syz-executor 72772 28105 45268 0 3 0x80 nanoslp syz-executor 72772 86875 45268 0 3 0x4000080 lockf syz-executor 72772 481377 45268 0 3 0x4000080 fsleep syz-executor 45268 380641 42478 0 2 0x482 syz-executor 82592 5960 0 0 3 0x14200 acct acct 54996 271495 42478 0 2 0x482 syz-executor 49280 223342 42478 0 3 0x82 nanoslp syz-executor 68433 332846 42478 0 3 0x82 nanoslp syz-executor 84679 459987 42478 0 3 0x82 nanoslp syz-executor 41049 185805 42478 0 2 0x10000082 syz-executor 84647 424889 42478 0 3 0x82 nanoslp syz-executor 66736 352838 42478 0 2 0x482 syz-executor 42478 478695 3864 0 3 0x82 kqread syz-executor 3864 388943 82397 0 3 0x10008a sigsusp ksh 82397 500782 74368 0 3 0x98 kqread sshd-session 74368 407822 56431 0 3 0x92 kqread sshd-session 22244 422659 1 0 3 0x100083 ttyin getty 56431 473842 1 0 3 0x88 kqread sshd 15475 463809 89393 74 3 0x1100092 bpf pflogd 89393 241776 1 0 3 0x80 sbwait pflogd 40431 125020 49565 73 3 0x1100090 kqread syslogd 49565 377466 1 0 3 0x100082 sbwait syslogd 70990 408307 1 0 3 0x100080 kqread resolvd 41288 126391 27160 77 3 0x100092 kqread dhcpleased 8446 399185 27160 77 3 0x100092 kqread dhcpleased 27160 17389 1 0 3 0x80 kqread dhcpleased 76311 189081 0 0 3 0x14200 bored smr 48862 65230 0 0 2 0x14200 zerothread 75655 274189 0 0 3 0x14200 aiodoned aiodoned 9542 255876 0 0 3 0x14200 syncer update 15183 276151 0 0 3 0x14200 cleaner cleaner 60571 130524 0 0 7 0x14200 reaper 47870 498433 0 0 3 0x14200 pgdaemon pagedaemon 31836 296907 0 0 3 0x14200 bored viomb 36284 174061 0 0 3 0x40014200 acpi0 acpi0 26644 244539 0 0 3 0x40014200 idle1 52877 42521 0 0 3 0x14200 bored softnet3 8224 216698 0 0 3 0x14200 bored softnet2 94119 92760 0 0 3 0x14200 bored softnet1 22313 294509 0 0 3 0x14200 bored softnet0 86743 279269 0 0 3 0x14200 bored systqmp 62262 31465 0 0 3 0x14200 bored systq 33003 308837 0 0 3 0x14200 tmoslp softclockmp 54408 406399 0 0 2 0x40014200 softclock 68166 424314 0 0 3 0x40014200 idle0 1 133475 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks CPU 1: exclusive mutex &uvm.fpageqlock r = 0 (0xffffffff83955b40) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1160 #1 mtx_enter_try+0x178 sys/kern/kern_lock.c:-1 #2 mtx_enter+0x60 sys/kern/kern_lock.c:239 #3 uvm_pmr_freepages+0x1a8 sys/uvm/uvm_pmemrange.c:1323 #4 uvm_anfree_list+0x1e3 sys/uvm/uvm_anon.c:120 #5 amap_wipeout+0x248 sys/uvm/uvm_amap.c:502 #6 uvm_unmap_detach+0x8a sys/uvm/uvm_map.c:1353 #7 uvm_map_teardown+0x358 sys/uvm/uvm_map.c:2516 #8 uvmspace_free+0xcd sys/uvm/uvm_map.c:3420 #9 reaper+0x246 sys/kern/kern_exit.c:478 #10 proc_trampoline+0x10 Process 53278 (syz-executor) thread 0xffff8000ffff2010 (16406) exclusive rrwlock inode r = 0 (0xfffffd806bd46ac0) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x3ea sys/kern/kern_rwlock.c:316 #2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:616 #3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524 #4 ufs_ihashins+0x4f ufs_ihash sys/ufs/ufs/ufs_ihash.c:-1 [inline] #4 ufs_ihashins+0x4f sys/ufs/ufs/ufs_ihash.c:159 #5 ffs_vget+0x187 sys/ufs/ffs/ffs_vfsops.c:1230 #6 ufs_lookup+0x16bc sys/ufs/ufs/ufs_lookup.c:573 #7 VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85 #8 vfs_lookup+0x8fa sys/kern/vfs_lookup.c:566 #9 namei+0x7aa sys/kern/vfs_lookup.c:250 #10 vn_open+0x13f sys/kern/vfs_vnops.c:140 #11 vndioctl+0xcb1 sys/dev/vnd.c:457 #12 VOP_IOCTL+0xac sys/kern/vfs_vops.c:264 #13 vn_ioctl+0xf8 sys/kern/vfs_vnops.c:531 #14 sys_ioctl+0x5c3 sys/kern/sys_generic.c:-1 #15 syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] #15 syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 #16 Xsyscall+0x128 Process 53278 (syz-executor) thread 0xffff80003c41aa68 (368319) exclusive rrwlock inode r = 0 (0xfffffd806bd46400) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x3ea sys/kern/kern_rwlock.c:316 #2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:616 #3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:570 #5 vfs_lookup+0x109 sys/kern/vfs_lookup.c:418 #6 namei+0x7aa sys/kern/vfs_lookup.c:250 #7 vn_open+0x13f sys/kern/vfs_vnops.c:140 #8 doopenat+0x32e sys/kern/vfs_syscalls.c:1139 #9 syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] #9 syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 #10 Xsyscall+0x128 Process 60571 (reaper) thread 0xffff8000ffffd1f8 (130524) exclusive rwlock amaplk r = 0 (0xfffffd806ce22d58) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x3ea sys/kern/kern_rwlock.c:316 #2 amap_unref+0x3d sys/uvm/uvm_amap.c:1360 #3 uvm_unmap_detach+0x8a sys/uvm/uvm_map.c:1353 #4 uvm_map_teardown+0x358 sys/uvm/uvm_map.c:2516 #5 uvmspace_free+0xcd sys/uvm/uvm_map.c:3420 #6 reaper+0x246 sys/kern/kern_exit.c:478 #7 proc_trampoline+0x10 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10229 11368K 11479K 166960K 11713 0 pcb 18 13K 13K 166960K 84 0 rtable 180 6K 7K 166960K 428 0 pf 34 17K 18K 166960K 74 0 ifaddr 37 6K 7K 166960K 66 0 ifgroup 55 2K 2K 166960K 95 0 sysctl 3 1K 1K 166960K 3 0 counters 64 36K 36K 166960K 90 0 ioctlops 0 0K 4K 166960K 1609 0 iov 0 0K 16K 166960K 11 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1409 89K 89K 166960K 1745 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 9K 166960K 6 0 VM map 2 1K 1K 166960K 2 0 sem 9 0K 0K 166960K 41 0 dirhash 12 2K 2K 166960K 18 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 17 61K 93K 166960K 381 0 sigio 0 0K 0K 166960K 5 0 proc 77 103K 128K 166960K 571 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 35 0 in_multi 79 5K 7K 166960K 129 0 ether_multi 1 0K 0K 166960K 2 0 mrt 1 0K 0K 166960K 3 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 79 360K 360K 166960K 79 0 exec 0 0K 1K 166960K 462 0 fusefs mount 1 32K 32K 166960K 1 0 pfkey data 0 0K 0K 166960K 1 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 254 160K 170K 166960K 5146 0 UVM aobj 9 2K 2K 166960K 9 0 pinsyscall 42 84K 105K 166960K 1494 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 14 0 NDP 12 0K 2K 166960K 40 0 temp 40 8675K 8930K 166960K 17341 0 kqueue 16 24K 26K 166960K 66 0 SYN cache 2 16K 16K 166960K 2 0 ddb{0}> 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 81 0 77 2 0 2 2 0 8 1 rtentry 176 135 0 55 6 0 6 6 0 8 0 unpcb 144 452 0 427 9 0 9 9 0 8 7 syncache 336 3 0 3 1 1 0 1 0 8 0 tcpcb 808 92 0 88 5 0 5 5 0 8 4 arp 128 21 0 6 1 0 1 1 0 8 0 inpcb 384 405 0 396 8 0 8 8 0 8 6 nd6 144 32 0 10 2 0 2 2 0 8 0 pkpcb 40 4 0 4 1 0 1 1 0 8 1 kcovpl 48 9 0 1 1 0 1 1 0 8 0 mppekey 1024 2 0 2 1 0 1 1 0 8 1 ppxss 1192 5 0 5 1 0 1 1 0 8 1 pppxif 1504 1 0 1 1 0 1 1 0 8 1 pfstscr 40 65 0 65 1 0 1 1 0 8 1 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 40 0 2 1 0 1 1 0 8 0 pfstkey 128 168 0 130 2 0 2 2 0 8 0 pfstate 384 103 0 65 5 0 5 5 0 8 1 pfrule 1344 22 0 17 2 1 1 2 0 8 0 rttmr 136 1 0 1 1 0 1 1 0 8 1 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 602 0 242 29 0 29 29 0 8 5 art_table 32 603 0 242 4 0 4 4 0 8 0 art_node 16 134 0 63 1 0 1 1 0 8 0 sysvmsgpl 40 1 0 1 1 0 1 1 0 8 1 semapl 112 39 0 32 1 0 1 1 0 8 0 shmpl 112 6 0 0 1 0 1 1 0 8 0 dirhash 1024 21 0 4 3 0 3 3 0 8 0 dino2pl 256 2108 0 595 95 0 95 95 0 8 0 ffsino 288 2108 0 595 109 0 109 109 0 8 0 nchpl 144 2621 0 921 64 0 64 64 0 8 0 uvmvnodes 80 2375 0 0 49 0 49 49 0 8 0 vnodes 216 2375 0 0 132 0 132 132 0 8 0 namei 1024 8637 0 8635 2 0 2 2 0 8 1 percpumem 16 60 0 13 1 0 1 1 0 8 0 kstatmem 264 44 0 20 2 0 2 2 0 8 0 scxspl 216 7915 0 7915 3 2 1 2 1 8 1 plimitpl 152 82 0 65 1 0 1 1 0 8 0 sigapl 424 680 0 629 7 0 7 7 0 8 1 futexpl 64 3884 0 3877 1 0 1 1 0 8 0 knotepl 120 520 0 0 16 0 16 16 0 8 0 kqueuepl 224 94 0 78 2 0 2 2 0 8 0 pipepl 336 137 0 110 3 0 3 3 0 8 0 fdescpl 520 661 0 630 3 0 3 3 0 8 0 filepl 160 3856 0 3617 19 1 18 19 0 8 7 lockfpl 104 62 0 58 1 0 1 1 0 8 0 lockfspl 48 27 0 24 1 0 1 1 0 8 0 sessionpl 144 23 0 14 1 0 1 1 0 8 0 pgrppl 48 35 0 18 1 0 1 1 0 8 0 ucredpl 104 727 0 713 1 0 1 1 0 8 0 zombiepl 144 631 0 629 1 0 1 1 0 8 0 processpl 1192 680 0 629 5 0 5 5 0 8 0 procpl 656 1091 0 1025 6 0 6 6 0 8 0 srpgc 96 6 0 6 1 0 1 1 0 8 1 sockpl 728 947 0 909 22 11 11 22 0 8 6 mcl64k 65536 2 0 0 1 0 1 1 0 8 0 mcl12k 12288 1 0 0 1 0 1 1 0 8 0 mcl8k 8192 3 0 0 1 0 1 1 0 8 0 mcl4k 4096 113 0 0 15 0 15 15 0 8 0 mcl2k 2048 20 0 0 3 0 3 3 0 8 0 mtagpl 96 9 0 0 1 0 1 1 0 8 0 mbufpl 256 186 0 0 12 0 12 12 0 8 0 bufpl 280 2850 0 123 195 0 195 195 0 8 0 anonpl 32 5524 0 0 45 0 45 45 0 246 0 amapchunkpl 152 15769 0 15223 28 0 28 28 0 158 4 amappl16 200 2240 0 2209 5 2 3 5 0 8 0 amappl15 192 23 0 23 1 1 0 1 0 8 0 amappl14 184 117 0 105 1 0 1 1 0 8 0 amappl13 176 3 0 3 1 1 0 1 0 8 0 amappl12 168 1319 0 1288 3 1 2 2 0 8 0 amappl11 160 69 0 55 1 0 1 1 0 8 0 amappl10 152 5 0 4 1 0 1 1 0 8 0 amappl9 144 253 0 252 2 1 1 1 0 8 0 amappl8 136 26 0 23 1 0 1 1 0 8 0 amappl7 128 107 0 95 1 0 1 1 0 8 0 amappl6 120 189 0 186 1 0 1 1 0 8 0 amappl5 112 143 0 134 1 0 1 1 0 8 0 amappl4 104 315 0 295 1 0 1 1 0 8 0 amappl3 96 2865 0 2744 5 1 4 4 0 8 0 amappl2 88 653 0 591 2 0 2 2 0 8 0 amappl1 80 9159 0 8563 14 0 14 14 0 8 1 amappl 88 4414 0 4232 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 8 0 0 1 0 1 1 0 8 0 uaddrrnd 24 661 0 630 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 661 0 630 1 0 1 1 0 8 0 vmmpekpl 168 6957 0 6912 3 0 3 3 0 8 0 vmmpepl 168 47749 0 45744 91 0 91 91 0 357 0 vmsppl 480 660 0 630 5 0 5 5 0 8 1 rwobjpl 72 17694 0 14357 61 0 61 61 0 8 0 pdppl 4096 1330 0 1260 104 30 74 86 0 8 4 pvpl 32 11841 0 0 97 1 96 96 0 265 0 pmappl 256 660 0 630 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 391 0 33 11 0 11 11 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace copyout() at copyout+0x57 syscall(ffff80003c491640) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c491640) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x119fad7ae60, count: -3 ddb{0}> machine ddbcpu 1