login: b+&~SАu= Nm3჏tEgPU je-bYZ&ޣb+&~SАu= Nm3჏tEgPU je-bYZ&ޣb+&~SАu= Nm3჏tEgPU je-bYZ&ޣb+&~SАu= Nm3჏tEgPU je-bYZ&ޣuvm_fault(0xfffffd80684ce180, 0x668, 0, 2) -> e kernel: page fault trap, code=0 Stopped at pppacopen+0x1b5: movq %r13,0x668 TID PID UID PRFLAGS PFLAGS CPU COMMAND *282015 37008 0 0 0x4000000 0K syz-executor.2 413667 91784 0 0x14000 0x200 1 reaper pppacopen(4086331,1,2000,ffff800021250d28) at pppacopen+0x1b5 sys/net/if_pppx.c:1020 spec_open(ffff8000246af3e8) at spec_open+0x3d7 sys/kern/spec_vnops.c:157 VOP_OPEN(fffffd8067134560,1,fffffd807f7d75a0,ffff800021250d28) at VOP_OPEN+0x75 sys/kern/vfs_vops.c:138 vn_open(ffff8000246af638,1,0) at vn_open+0x467 sys/kern/vfs_vnops.c:183 doopenat(ffff800021250d28,ffffff9c,200000c0,0,0,ffff8000246af820) at doopenat+0x26a sys/kern/vfs_syscalls.c:1128 syscall(ffff8000246af890) at syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff8000246af890) at syscall+0x489 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xd4f05ff0d00, 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{0}> ddb{0}> set $lines = 0 ddb{0}> set $maxwidth = 0 ddb{0}> show panic *cpu0: uvm_fault(0xfffffd80684ce180, 0x668, 0, 2) -> e ddb{0}> trace pppacopen(4086331,1,2000,ffff800021250d28) at pppacopen+0x1b5 sys/net/if_pppx.c:1020 spec_open(ffff8000246af3e8) at spec_open+0x3d7 sys/kern/spec_vnops.c:157 VOP_OPEN(fffffd8067134560,1,fffffd807f7d75a0,ffff800021250d28) at VOP_OPEN+0x75 sys/kern/vfs_vops.c:138 vn_open(ffff8000246af638,1,0) at vn_open+0x467 sys/kern/vfs_vnops.c:183 doopenat(ffff800021250d28,ffffff9c,200000c0,0,0,ffff8000246af820) at doopenat+0x26a sys/kern/vfs_syscalls.c:1128 syscall(ffff8000246af890) at syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff8000246af890) at syscall+0x489 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xd4f05ff0d00, count: -7 ddb{0}> show registers rdi 0xffff8000246be000 rsi 0x103a __ALIGN_SIZE+0x3a rbp 0xffff8000246af360 rbx 0 rdx 0xffff8000246be000 rcx 0x1039 __ALIGN_SIZE+0x39 rax 0xffffffff81c79ee5 pppacopen+0x1b5 r8 0x770 r9 0xfffffd807f7d75a0 r10 0x6b5c8dd1b1ca65c1 r11 0x40ceab17927eb31b r12 0xfffffd8067134560 r13 0 r14 0x4086331 __kernel_phys_end+0x1486331 r15 0xffff8000246af3e8 rip 0xffffffff81c79ee5 pppacopen+0x1b5 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff8000246af310 ss 0x10 pppacopen+0x1b5: movq %r13,0x668 ddb{0}> show proc PROC (syz-executor.2) pid=282015 stat=onproc flags process=0 proc=4000000 pri=32, usrpri=57, nice=20 forw=0xffffffffffffffff, list=0xffff800021251268,0xffff800021251a58 process=0xffff8000ffffadc0 user=0xffff8000246aa000, vmspace=0xfffffd80684ce180 estcpu=36, cpticks=0, pctcpu=0.0 user=0, sys=0, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 52105 340540 9824 0 2 0 syz-executor.3 80620 8728 99079 0 2 0 syz-executor.1 80620 116420 99079 0 2 0x4000000 syz-executor.1 37008 108614 80301 0 2 0 syz-executor.2 *37008 282015 80301 0 7 0x4000000 syz-executor.2 23577 177081 0 0 3 0x14200 bored sosplice 9824 285736 65449 0 3 0x82 nanoslp syz-executor.3 80301 90137 65449 0 3 0x82 nanoslp syz-executor.2 99079 321623 65449 0 3 0x82 nanoslp syz-executor.1 65147 20186 65449 0 3 0x82 nanoslp syz-executor.0 65449 267777 76757 0 3 0x82 thrsleep syz-fuzzer 65449 245284 76757 0 3 0x4000082 nanoslp syz-fuzzer 65449 426259 76757 0 3 0x4000082 thrsleep syz-fuzzer 65449 401377 76757 0 3 0x4000082 kqread syz-fuzzer 65449 299119 76757 0 3 0x4000082 thrsleep syz-fuzzer 65449 43037 76757 0 3 0x4000082 thrsleep syz-fuzzer 65449 283956 76757 0 3 0x4000082 thrsleep syz-fuzzer 65449 217100 76757 0 3 0x4000082 thrsleep syz-fuzzer 76757 459432 44461 0 3 0x10008a sigsusp ksh 44461 156725 95440 0 3 0x9a poll sshd 94047 510492 1 0 3 0x100083 ttyin getty 95440 427581 1 0 3 0x88 poll sshd 82549 191912 83731 74 3 0x100092 bpf pflogd 83731 294098 1 0 3 0x80 netio pflogd 7857 260272 83167 73 3 0x100090 kqread syslogd 83167 58694 1 0 3 0x100082 netio syslogd 67595 244908 1 0 3 0x100080 kqread resolvd 17804 101584 57527 77 3 0x100092 kqread dhcpleased 8461 486326 57527 77 3 0x100092 kqread dhcpleased 57527 483132 1 0 3 0x80 kqread dhcpleased 36179 440076 0 0 3 0x14200 bored smr 51122 475364 0 0 2 0x14200 zerothread 8496 271272 0 0 3 0x14200 aiodoned aiodoned 34052 60223 0 0 3 0x14200 syncer update 13408 286775 0 0 3 0x14200 cleaner cleaner 91784 413667 0 0 7 0x14200 reaper 70053 463084 0 0 3 0x14200 pgdaemon pagedaemon 17898 509478 0 0 3 0x14200 bored viomb 58236 278138 0 0 3 0x40014200 acpi0 acpi0 25639 50071 0 0 3 0x40014200 idle1 67487 274261 0 0 3 0x14200 bored softnet 45824 163370 0 0 3 0x14200 bored systqmp 20023 233345 0 0 3 0x14200 bored systq 8923 258500 0 0 3 0x40014200 bored softclock 24084 486702 0 0 3 0x40014200 idle0 1 257849 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks CPU 1: exclusive mutex &pmap->pm_mtx r = 0 (0xfffffd807f000ca8) #0 witness_lock+0x44d #1 mtx_enter_try+0x100 #2 mtx_enter+0x4b sys/kern/kern_lock.c:266 #3 pmap_do_remove+0x8b rcr3 machine/cpufunc.h:141 [inline] #3 pmap_do_remove+0x8b pmap_map_ptes sys/arch/amd64/amd64/pmap.c:414 [inline] #3 pmap_do_remove+0x8b sys/arch/amd64/amd64/pmap.c:1769 #4 uvm_unmap_kill_entry_withlock+0x1af sys/uvm/uvm_map.c:2139 #5 uvm_map_teardown+0x197 uvm_map_addr_RBT_LEFT sys/uvm/uvm_map.h:176 [inline] #5 uvm_map_teardown+0x197 sys/uvm/uvm_map.c:2771 #6 uvmspace_free+0xa6 sys/uvm/uvm_map.c:3685 #7 reaper+0x18b sys/kern/kern_exit.c:462 #8 proc_trampoline+0x1c Process 37008 (syz-executor.2) thread 0xffff800021250d28 (282015) exclusive kernel_lock &kernel_lock r = 1 (0xffffffff828f9c10) #0 witness_lock+0x44d #1 syscall+0x3ef mi_syscall sys/sys/syscall_mi.h:93 [inline] #1 syscall+0x3ef sys/arch/amd64/amd64/trap.c:585 #2 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10160 6466K 6593K 78643K 11308 0 pcb 13 8K 8K 78643K 19 0 rtable 150 4K 4K 78643K 232 0 ifaddr 58 13K 13K 78643K 60 0 counters 48 34K 34K 78643K 48 0 ioctlops 0 0K 4K 78643K 1488 0 iov 0 0K 12K 78643K 4 0 mount 1 1K 1K 78643K 1 0 log 0 0K 0K 78643K 5 0 vnodes 1233 78K 78K 78643K 1259 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 1K 78643K 2 0 VM map 2 1K 1K 78643K 2 0 sem 3 0K 0K 78643K 3 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1697 195K 286K 78643K 12598 0 file desc 9 29K 49K 78643K 156 0 sigio 0 0K 0K 78643K 2 0 proc 70 87K 111K 78643K 403 0 subproc 52 3K 3K 78643K 52 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 6 0 in_multi 55 3K 3K 78643K 56 0 ether_multi 1 0K 0K 78643K 1 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 37 175K 175K 78643K 37 0 exec 0 0K 2K 78643K 455 0 tdb 3 0K 0K 78643K 3 0 pagedep 1 8K 8K 78643K 1 0 inodedep 1 32K 32K 78643K 1 0 newblk 1 0K 0K 78643K 1 0 VM swap 7 26K 26K 78643K 7 0 UVM amap 232 44K 44K 78643K 3264 0 UVM aobj 3 2K 2K 78643K 3 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 8 0 NDP 8 0K 1K 78643K 16 0 temp 57 4187K 4264K 78643K 4336 0 kqueue 10 14K 16K 78643K 12 0 SYN cache 2 16K 16K 78643K 2 0 ddb{0}> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle plcache 128 22 0 0 1 0 1 1 0 8 0 rtpcb 120 25 0 22 1 0 1 1 0 8 0 rtentry 112 67 0 1 2 0 2 2 0 8 0 unpcb 136 62 0 47 1 0 1 1 0 8 0 syncache 296 4 0 4 1 1 0 1 0 8 0 tcpqe 32 279 0 279 1 0 1 1 0 8 1 tcpcb 736 22 0 11 1 0 1 1 0 8 0 arp 120 10 0 0 1 0 1 1 0 8 0 inpcb 304 89 0 82 1 0 1 1 0 8 0 nd6 48 12 0 0 1 0 1 1 0 8 0 pkpcb 40 1 0 1 1 0 1 1 0 8 1 kcovpl 48 4 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 pftag 88 1 0 0 1 0 1 1 0 8 0 pfqueue 264 1 0 1 1 0 1 1 0 8 1 pfstitem 24 13 0 0 1 0 1 1 0 8 0 pfstkey 112 13 0 0 1 0 1 1 0 8 0 pfstate 320 13 0 0 2 0 2 2 0 8 0 pfrule 1360 21 0 16 2 1 1 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 277 0 0 18 0 18 18 0 8 0 art_table 32 278 0 0 3 0 3 3 0 8 0 art_node 16 66 0 6 1 0 1 1 0 8 0 semapl 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 1567 0 151 89 0 89 89 0 8 0 ffsino 272 1567 0 151 95 0 95 95 0 8 0 nchpl 144 1905 0 281 61 0 61 61 0 8 0 uvmvnodes 80 1644 0 0 34 0 34 34 0 8 0 vnodes 224 1644 0 0 97 0 97 97 0 8 0 namei 1024 5435 0 5435 1 0 1 1 0 8 1 percpumem 16 36 0 0 1 0 1 1 0 8 0 scxspl 216 5543 0 5543 2 1 1 2 0 8 1 plimitpl 152 20 0 9 1 0 1 1 0 8 0 sigapl 424 395 0 358 5 0 5 5 0 8 0 futexpl 64 467 0 467 1 0 1 1 0 8 1 knotepl 112 65 0 0 2 0 2 2 0 8 0 kqueuepl 216 10 0 4 1 0 1 1 0 8 0 pipepl 336 90 0 74 2 0 2 2 0 8 0 fdescpl 496 380 0 358 4 0 4 4 0 8 1 filepl 152 1521 0 1370 7 0 7 7 0 8 1 lockfpl 104 14 0 12 1 0 1 1 0 8 0 lockfspl 48 8 0 6 1 0 1 1 0 8 0 sessionpl 144 20 0 7 1 0 1 1 0 8 0 pgrppl 48 20 0 7 1 0 1 1 0 8 0 ucredpl 96 86 0 74 1 0 1 1 0 8 0 zombiepl 144 358 0 357 1 0 1 1 0 8 0 processpl 1064 395 0 357 3 0 3 3 0 8 0 procpl 672 507 0 460 5 0 5 5 0 8 0 sosppl 168 3 0 3 1 0 1 1 0 8 1 sockpl 480 177 0 152 5 0 5 5 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 mcl9k 9216 1 0 0 1 0 1 1 0 8 0 mcl8k 8192 4 0 0 1 0 1 1 0 8 0 mcl4k 4096 2 0 0 1 0 1 1 0 8 0 mcl2k 2048 167 0 0 20 0 20 20 0 8 0 mtagpl 96 9 0 0 1 0 1 1 0 8 0 mbufpl 256 245 0 0 15 0 15 15 0 8 0 bufpl 288 3680 0 141 253 0 253 253 0 8 0 anonpl 24 76217 0 61439 96 3 93 93 0 186 1 amapchunkpl 152 7371 0 6704 29 1 28 28 0 158 0 amappl16 200 765 0 337 23 0 23 23 0 8 0 amappl15 192 1 0 0 1 0 1 1 0 8 0 amappl14 184 24 0 22 1 0 1 1 0 8 0 amappl13 176 42 0 40 1 0 1 1 0 8 0 amappl12 168 21 0 17 1 0 1 1 0 8 0 amappl11 160 72 0 56 1 0 1 1 0 8 0 amappl10 152 45 0 38 1 0 1 1 0 8 0 amappl9 144 507 0 502 1 0 1 1 0 8 0 amappl8 136 385 0 355 2 0 2 2 0 8 0 amappl7 128 111 0 99 1 0 1 1 0 8 0 amappl6 120 176 0 159 1 0 1 1 0 8 0 amappl5 112 252 0 231 1 0 1 1 0 8 0 amappl4 104 622 0 599 1 0 1 1 0 8 0 amappl3 96 163 0 147 1 0 1 1 0 8 0 amappl2 88 359 0 321 2 1 1 2 0 8 0 amappl1 80 9910 0 9415 13 1 12 13 0 8 1 amappl 88 2934 0 2753 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 2 0 0 1 0 1 1 0 8 0 uaddrrnd 24 380 0 358 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 380 0 358 1 0 1 1 0 8 0 vmmpekpl 168 7094 0 7059 2 0 2 2 0 8 0 vmmpepl 168 38266 0 36350 104 0 104 104 0 357 17 vmsppl 368 379 0 357 3 0 3 3 0 8 0 rwobjpl 56 12162 0 9272 42 1 41 41 0 8 0 pdppl 4096 768 0 714 74 20 54 62 0 8 0 pvpl 32 218275 0 199889 156 2 154 154 0 265 1 pmappl 248 379 0 357 2 0 2 2 0 8 0 extentpl 40 57 0 38 1 0 1 1 0 8 0 phpool 112 584 0 23 17 0 17 17 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace pppacopen(4086331,1,2000,ffff800021250d28) at pppacopen+0x1b5 sys/net/if_pppx.c:1020 spec_open(ffff8000246af3e8) at spec_open+0x3d7 sys/kern/spec_vnops.c:157 VOP_OPEN(fffffd8067134560,1,fffffd807f7d75a0,ffff800021250d28) at VOP_OPEN+0x75 sys/kern/vfs_vops.c:138 vn_open(ffff8000246af638,1,0) at vn_open+0x467 sys/kern/vfs_vnops.c:183 doopenat(ffff800021250d28,ffffff9c,200000c0,0,0,ffff8000246af820) at doopenat+0x26a sys/kern/vfs_syscalls.c:1128 syscall(ffff8000246af890) at syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff8000246af890) at syscall+0x489 sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xd4f05ff0d00, count: -7 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x1a: addq $0x8,%rsp x86_ipi_db(ffff800020d38ff0) at x86_ipi_db+0x1a sys/arch/amd64/amd64/db_interface.c:393 x86_ipi_handler() at x86_ipi_handler+0xb7 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x23 __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x2f kd_curproc sys/dev/kcov.c:579 [inline] __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x2f sys/dev/kcov.c:148 __mp_lock(ffffffff828f9a08) at __mp_lock+0x133 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff828f9a08) at __mp_lock+0x133 sys/kern/kern_lock.c:147 uvm_unmap_detach(ffff8000211855d0,1) at uvm_unmap_detach+0x113 sys/uvm/uvm_map.c:1615 uvm_map_teardown(fffffd80684ce8b0) at uvm_map_teardown+0x262 sys/uvm/uvm_map.c:2789 uvmspace_free(fffffd80684ce8b0) at uvmspace_free+0xa6 sys/uvm/uvm_map.c:3685 reaper(ffff800021148fc0) at reaper+0x18b sys/kern/kern_exit.c:462 end trace frame: 0x0, count: 6 ddb{1}> trace x86_ipi_db(ffff800020d38ff0) at x86_ipi_db+0x1a sys/arch/amd64/amd64/db_interface.c:393 x86_ipi_handler() at x86_ipi_handler+0xb7 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x23 __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x2f kd_curproc sys/dev/kcov.c:579 [inline] __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x2f sys/dev/kcov.c:148 __mp_lock(ffffffff828f9a08) at __mp_lock+0x133 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff828f9a08) at __mp_lock+0x133 sys/kern/kern_lock.c:147 uvm_unmap_detach(ffff8000211855d0,1) at uvm_unmap_detach+0x113 sys/uvm/uvm_map.c:1615 uvm_map_teardown(fffffd80684ce8b0) at uvm_map_teardown+0x262 sys/uvm/uvm_map.c:2789 uvmspace_free(fffffd80684ce8b0) at uvmspace_free+0xa6 sys/uvm/uvm_map.c:3685 reaper(ffff800021148fc0) at reaper+0x18b sys/kern/kern_exit.c:462 end trace frame: 0x0, count: -9