login: uvm_fault(0xffffef806cd74208, 0x20, 0, 1) -> e kernel: page fault trap, code=0 Stopped at mtx_enter+0x9e: movl 0x8(%r14),%r13d TID PID UID PRFLAGS PFLAGS CPU COMMAND 79528 72723 0 0 0 0 syz-executor * 59432 72723 0 0 0x4000000 1K syz-executor mtx_enter(18) at mtx_enter+0x9e sys/kern/kern_lock.c:406 ifq_add_data(0,ffffef800f98a818) at ifq_add_data+0x31 sys/net/ifq.c:362 if_getdata(ffff800000c34000,ffffef800f98a818) at if_getdata+0x244 sys/net/if.c:-1 rtm_ifchg(ffff800000c34000) at rtm_ifchg+0xfb sys/net/rtsock.c:1797 ifioctl(ffff800001625a88,8020697f,ffff80002af86580,ffff80002a220fb8) at ifioctl+0x2398 sys/net/if.c:2357 sys_ioctl(ffff80002a220fb8,ffff80002af86760,ffff80002af866b0) at sys_ioctl+0x674 sys/kern/sys_generic.c:-1 syscall(ffff80002af86760) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002af86760) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:791 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x35a58ce7db0, 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{1}> ddb{1}> set $lines = 0 ddb{1}> set $maxwidth = 0 ddb{1}> show panic *cpu1: uvm_fault(0xffffef806cd74208, 0x20, 0, 1) -> e ddb{1}> show kasan No such command ddb{1}> trace mtx_enter(18) at mtx_enter+0x9e sys/kern/kern_lock.c:406 ifq_add_data(0,ffffef800f98a818) at ifq_add_data+0x31 sys/net/ifq.c:362 if_getdata(ffff800000c34000,ffffef800f98a818) at if_getdata+0x244 sys/net/if.c:-1 rtm_ifchg(ffff800000c34000) at rtm_ifchg+0xfb sys/net/rtsock.c:1797 ifioctl(ffff800001625a88,8020697f,ffff80002af86580,ffff80002a220fb8) at ifioctl+0x2398 sys/net/if.c:2357 sys_ioctl(ffff80002a220fb8,ffff80002af86760,ffff80002af866b0) at sys_ioctl+0x674 sys/kern/sys_generic.c:-1 syscall(ffff80002af86760) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002af86760) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:791 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x35a58ce7db0, count: -8 ddb{1}> show registers rdi 0 rsi 0 rbp 0xffff80002af862e0 rbx 0x80206900 __kernel_virt_to_phys+0x206900 rdx 0 rcx 0xffff80002a220fb8 rax 0xffff80002999dff0 r8 0x90 r9 0x8080808080808080 r10 0x2fdfa9a07a8ba05d r11 0xb3d1d0f2c37ba7a9 r12 0x28 r13 0x8049 __ALIGN_SIZE+0x7049 r14 0x18 r15 0xffff80002999dff0 rip 0xffffffff823fcb9e mtx_enter+0x9e cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80002af86260 ss 0x10 mtx_enter+0x9e: movl 0x8(%r14),%r13d ddb{1}> show proc PROC (syz-executor) tid=59432 pid=72723 tcnt=3 stat=onproc flags process=0 proc=4000000 runpri=50, usrpri=86, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff800045ffcd00,0xffff80002a220038 process=0xffff800045ff4008 user=0xffff80002af81000, vmspace=0xffffef806cd74208 estcpu=36, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S PRLAGS PFLAGS WAIT COMMAND 42487 433479 95535 0 2 0x100000 0 sh 95535 43964 2910 0 3 0x100002 0x88 sigsusp sh 72723 79528 6221 0 7 0 0 syz-executor *72723 59432 6221 0 7 0 0x4000000 syz-executor 72723 6760 6221 0 3 0 0x4000000 biowait syz-executor 53163 357095 66479 0 2 0x2 0 sh 96353 12476 83025 0 2 0 0 syz-executor 96353 14668 83025 0 3 0 0x4000080 fsleep syz-executor 96353 28897 83025 0 2 0 0x4000000 syz-executor 10041 479130 46763 0 2 0 0 syz-executor 10041 510696 46763 0 3 0 0x4000080 fsleep syz-executor 10041 167578 46763 0 3 0 0x4000080 fsleep syz-executor 87726 147388 83928 0 2 0x2 0 syz-executor 88902 111216 22050 0 3 0x10 0x80 nanoslp syz-executor 88902 450901 22050 0 3 0x10 0x4000080 kqread syz-executor 88902 233491 22050 0 3 0x10 0x4000080 fsleep syz-executor 98760 37799 83928 0 2 0x2 0 syz-executor 2910 181955 83928 0 3 0x2 0x80 wait syz-executor 66479 391705 83928 0 3 0x2 0x80 wait syz-executor 70893 127483 0 0 3 0x14000 0x280 nfsidl nfsio 34697 102632 0 0 3 0x14000 0x280 nfsidl nfsio 26312 115826 0 0 3 0x14000 0x280 nfsidl nfsio 64252 382542 0 0 3 0x14000 0x280 nfsidl nfsio 47645 442985 0 0 3 0x14000 0x280 nfsidl nfsio 27042 125142 0 0 3 0x14000 0x280 nfsidl nfsio 28361 248188 0 0 3 0x14000 0x280 nfsidl nfsio 3457 390600 0 0 3 0x14000 0x280 nfsidl nfsio 80234 339168 0 0 3 0x14000 0x280 nfsidl nfsio 59822 234546 0 0 3 0x14000 0x280 nfsidl nfsio 23668 434447 0 0 3 0x14000 0x280 nfsidl nfsio 56292 272468 0 0 3 0x14000 0x280 nfsidl nfsio 62355 38910 0 0 3 0x14000 0x280 nfsidl nfsio 5586 359150 0 0 3 0x14000 0x280 nfsidl nfsio 93329 127675 0 0 3 0x14000 0x280 nfsidl nfsio 43407 63178 0 0 3 0x14000 0x280 nfsidl nfsio 91416 375630 0 0 3 0x14000 0x280 nfsidl nfsio 71987 366688 0 0 3 0x14000 0x280 nfsidl nfsio 88202 481307 0 0 3 0x14000 0x280 nfsidl nfsio 31058 379405 0 0 3 0x14000 0x280 nfsidl nfsio 51244 98960 1 0 3 0x100003 0x80 ttyin getty 83025 378429 83928 0 3 0x2 0x80 nanoslp syz-executor 46763 379995 83928 0 3 0x2 0x80 nanoslp syz-executor 22050 99450 83928 0 3 0x2 0x80 nanoslp syz-executor 6221 95258 83928 0 3 0x2 0x80 nanoslp syz-executor 83928 502185 1 0 3 0x2 0x80 kqread syz-executor 18877 160886 0 0 3 0x14000 0x200 bored smr 22614 205218 0 0 2 0x14000 0x200 zerothread 4650 521097 0 0 3 0x14000 0x200 aiodoned aiodoned 6836 411141 0 0 3 0x14000 0x200 syncer update 60242 374804 0 0 3 0x14000 0x200 cleaner cleaner 37749 353636 0 0 3 0x14000 0x200 reaper reaper 8526 75213 0 0 3 0x14000 0x200 pgdaemon pagedaemon 64992 126730 0 0 3 0x14000 0x200 bored viomb 4302 519784 0 0 3 0x14000 0x40000200 acpi0 acpi0 49241 81364 0 0 3 0x14000 0x40000200 idle1 42370 244004 0 0 3 0x14000 0x200 bored softnet1 76544 245832 0 0 3 0x14000 0x200 bored softnet0 80015 295622 0 0 3 0x14000 0x200 smrbar systqmp 76888 252363 0 0 3 0x14000 0x200 bored systq 72145 181720 0 0 3 0x14000 0x200 tmoslp softclockmp 32019 498900 0 0 3 0x14000 0x40000200 tmoslp softclock 23382 507594 0 0 3 0x14000 0x40000200 idle0 1 218422 0 0 3 0x2 0x80 wait init 0 0 -1 0 3 0x10000 0x200 scheduler swapper ddb{1}> show all locks Process 72723 (syz-executor) thread 0xffff80002a220fb8 (59432) Process 72723 (syz-executor) thread 0xffff80002a220028 (6760) Process 80015 (systqmp) thread 0xffff800045ffe530 (295622) ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 11068 12015K 12150K 166960K 12299 0 pcb 20 12K 12K 166960K 34 0 rtable 159 5K 8K 166960K 504 0 pf 32 17K 25K 166960K 133 0 ifaddr 29 4K 8K 166960K 72 0 ifgroup 47 2K 2K 166960K 94 0 sysctl 3 1K 9K 166960K 7 0 counters 66 36K 37K 166960K 96 0 ioctlops 0 0K 4K 166960K 1511 0 iov 0 0K 16K 166960K 6 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1294 81K 82K 166960K 1533 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 9K 166960K 8 0 VM map 2 1K 1K 166960K 2 0 sem 8 0K 0K 166960K 11 0 dirhash 12 2K 2K 166960K 15 0 ACPI 1734 201K 291K 166960K 11964 0 file desc 16 58K 93K 166960K 316 0 sigio 0 0K 0K 166960K 2 0 proc 21 33K 164K 166960K 724 0 subproc 63 3K 4K 166960K 135 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 48 0 in_multi 55 3K 6K 166960K 149 0 ether_multi 1 0K 0K 166960K 3 0 mrt 1 0K 0K 166960K 6 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 223 996K 996K 166960K 223 0 exec 0 0K 1K 166960K 465 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 118 75K 177K 166960K 4700 0 UVM aobj 11 2K 2K 166960K 12 0 pinsyscall 19 38K 104K 166960K 1639 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 10 0K 1K 166960K 47 0 temp 33 9118K 9166K 166960K 7014 0 kqueue 1 2K 20K 166960K 40 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 28 0 0 1 0 1 1 0 8 0 rtpcb 120 50 0 49 1 0 1 1 0 8 0 rtentry 176 159 0 92 6 0 6 6 0 8 0 unpcb 144 77 0 77 1 0 1 1 0 8 1 syncache 336 4 0 4 1 0 1 1 0 8 1 tcpcb 736 18 0 17 1 0 1 1 0 8 0 arp 136 27 0 16 1 0 1 1 0 8 0 inpcb 328 160 0 155 1 0 1 1 0 8 0 nd6 152 37 0 25 1 0 1 1 0 8 0 pkpcb 40 1 0 1 1 0 1 1 0 8 1 kcovpl 48 15 0 8 1 0 1 1 0 8 0 ppxss 1192 5 0 5 1 0 1 1 0 8 1 pppxif 1576 2 0 2 1 0 1 1 0 8 1 pfstscr 40 1 0 1 1 0 1 1 0 8 1 pffrag 232 2 0 1 1 0 1 1 0 482 0 pffrnode 88 2 0 1 1 0 1 1 0 8 0 pffrent 40 4 0 3 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 pfanchor 1288 10 0 9 1 0 1 1 0 8 0 pfstitem 24 35 0 0 1 0 1 1 0 8 0 pfstkey 128 39 0 4 2 0 2 2 0 8 0 pfstate 448 37 0 2 4 0 4 4 0 8 0 pfrule 1360 27 0 21 2 1 1 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 656 0 273 30 0 30 30 0 8 2 art_table 40 657 0 273 5 0 5 5 0 8 0 art_node 32 159 0 88 1 0 1 1 0 8 0 sysvmsgpl 40 1 0 0 1 0 1 1 0 8 0 semupl 112 1 0 1 1 0 1 1 0 8 1 semapl 72 8 0 2 1 0 1 1 0 8 0 shmpl 120 9 0 1 1 0 1 1 0 8 0 dirhash 1024 19 0 2 3 0 3 3 0 8 0 dino2pl 256 1779 0 292 93 0 93 93 0 8 0 ffsino 296 1779 0 292 115 0 115 115 0 8 0 nchpl 144 2117 0 397 64 0 64 64 0 8 0 vnodes 216 1980 0 0 110 0 110 110 0 8 0 namei 1024 8211 0 8210 3 1 2 2 0 8 1 percpumem 16 64 0 15 1 0 1 1 0 8 0 kstatmem 264 49 0 26 3 0 3 3 0 8 1 scsiplug 72 3 0 3 1 0 1 1 0 8 1 scxspl 216 8954 0 8953 4 2 2 3 1 8 1 plimitpl 152 116 0 106 1 0 1 1 0 8 0 sigapl 424 650 0 595 7 0 7 7 0 8 0 knotepl 120 54 0 0 2 0 2 2 0 8 0 kqueuepl 224 59 0 56 1 0 1 1 0 8 0 pipepl 344 163 0 136 3 0 3 3 0 8 0 fdescpl 528 614 0 595 3 0 3 3 0 8 0 filepl 160 2606 0 2454 10 0 10 10 0 8 0 lockfpl 104 60 0 60 1 0 1 1 0 8 1 lockfspl 48 28 0 28 1 0 1 1 0 8 1 sessionpl 144 32 0 29 1 0 1 1 0 8 0 pgrppl 48 49 0 38 1 0 1 1 0 8 0 ucredpl 104 392 0 388 1 0 1 1 0 8 0 zombiepl 144 595 0 595 1 0 1 1 0 8 1 processpl 1240 650 0 595 5 0 5 5 0 8 0 procpl 664 842 0 779 6 0 6 6 0 8 0 sosppl 176 2 0 2 1 0 1 1 0 8 1 sockpl 752 294 0 288 4 0 4 4 0 8 2 mcl64k 65536 12 0 0 2 0 2 2 0 8 0 mcl16k 16384 3 0 0 1 0 1 1 0 8 0 mcl12k 12288 1 0 0 1 0 1 1 0 8 0 mcl8k 8192 2 0 0 1 0 1 1 0 8 0 mcl4k 4096 117 0 0 15 0 15 15 0 8 0 mcl2k 2048 18 0 0 3 0 3 3 0 8 0 mextrefs 64 19 0 0 1 0 1 1 0 8 0 mtagpl 96 3 0 0 1 0 1 1 0 8 0 mbufpl 256 229 0 0 15 0 15 15 0 8 0 bufpl 272 4601 0 105 300 0 300 300 0 8 0 anonpl 32 5922 0 0 48 0 48 48 0 247 0 amapchunkpl 152 13911 0 13607 27 1 26 26 0 158 13 amappl16 200 1492 0 1467 5 3 2 5 0 8 0 amappl15 192 3 0 3 1 1 0 1 0 8 0 amappl14 184 503 0 501 1 0 1 1 0 8 0 amappl13 176 135 0 134 1 0 1 1 0 8 0 amappl12 168 886 0 871 2 0 2 2 0 8 0 amappl11 160 7 0 7 1 1 0 1 0 8 0 amappl10 152 64 0 64 1 0 1 1 0 8 1 amappl9 144 277 0 277 1 1 0 1 0 8 0 amappl8 136 122 0 122 1 0 1 1 0 8 1 amappl7 128 160 0 157 1 0 1 1 0 8 0 amappl6 120 211 0 208 1 0 1 1 0 8 0 amappl5 112 104 0 104 1 0 1 1 0 8 1 amappl4 104 328 0 324 1 0 1 1 0 8 0 amappl3 96 2208 0 2155 3 0 3 3 0 8 0 amappl2 88 716 0 694 2 0 2 2 0 8 0 amappl1 80 11610 0 11503 15 0 15 15 0 8 8 amappl 88 3793 0 3690 4 0 4 4 0 92 0 uvmvnodes 80 105 0 0 3 0 3 3 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 6 0 6 1 1 0 1 0 8 0 dma128 128 254 0 254 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 11 0 1 1 0 1 1 0 8 0 uaddrrnd 24 614 0 595 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 614 0 595 1 0 1 1 0 8 0 vmmpekpl 168 7087 0 7031 3 0 3 3 0 8 0 vmmpepl 168 48396 0 47660 86 0 86 86 0 357 47 vmsppl 488 613 0 595 5 0 5 5 0 8 1 rwobjpl 80 16584 0 16165 24 0 24 24 0 8 3 pdppl 4096 1235 0 1190 109 62 47 85 0 8 2 pvpl 32 9646 0 0 79 1 78 78 0 265 0 pmappl 256 613 0 595 3 0 3 3 0 8 0 extentpl 40 46 0 28 1 0 1 1 0 8 0 phpool 112 590 0 66 16 0 16 16 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffffffff839b6ff0) 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_pc() at __sanitizer_cov_trace_pc+0x33 kd_curproc sys/dev/kcov.c:585 [inline] __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x33 sys/dev/kcov.c:153 __mp_lock(ffffffff83ab2040) at __mp_lock+0x1a3 __mp_lock_spin sys/kern/kern_lock.c:142 [inline] __mp_lock(ffffffff83ab2040) at __mp_lock+0x1a3 sys/kern/kern_lock.c:173 intr_handler(ffff80002a314160,ffff8000002a2900) at intr_handler+0xe9 sys/arch/amd64/amd64/intr.c:560 Xintr_ioapic_edge23_untramp() at Xintr_ioapic_edge23_untramp+0x18f __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x33 kd_curproc sys/dev/kcov.c:585 [inline] __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x33 sys/dev/kcov.c:153 __mp_lock(ffffffff83ab2040) at __mp_lock+0x1a3 __mp_lock_spin sys/kern/kern_lock.c:142 [inline] __mp_lock(ffffffff83ab2040) at __mp_lock+0x1a3 sys/kern/kern_lock.c:173 syscall(ffff80002a314340) at syscall+0xaf4 mi_syscall sys/sys/syscall_mi.h:175 [inline] syscall(ffff80002a314340) at syscall+0xaf4 sys/arch/amd64/amd64/trap.c:791 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f100d588480, count: 4 ddb{0}> trace x86_ipi_db(ffffffff839b6ff0) 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_pc() at __sanitizer_cov_trace_pc+0x33 kd_curproc sys/dev/kcov.c:585 [inline] __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x33 sys/dev/kcov.c:153 __mp_lock(ffffffff83ab2040) at __mp_lock+0x1a3 __mp_lock_spin sys/kern/kern_lock.c:142 [inline] __mp_lock(ffffffff83ab2040) at __mp_lock+0x1a3 sys/kern/kern_lock.c:173 intr_handler(ffff80002a314160,ffff8000002a2900) at intr_handler+0xe9 sys/arch/amd64/amd64/intr.c:560 Xintr_ioapic_edge23_untramp() at Xintr_ioapic_edge23_untramp+0x18f __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x33 kd_curproc sys/dev/kcov.c:585 [inline] __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x33 sys/dev/kcov.c:153 __mp_lock(ffffffff83ab2040) at __mp_lock+0x1a3 __mp_lock_spin sys/kern/kern_lock.c:142 [inline] __mp_lock(ffffffff83ab2040) at __mp_lock+0x1a3 sys/kern/kern_lock.c:173 syscall(ffff80002a314340) at syscall+0xaf4 mi_syscall sys/sys/syscall_mi.h:175 [inline] syscall(ffff80002a314340) at syscall+0xaf4 sys/arch/amd64/amd64/trap.c:791 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f100d588480, count: -11 ddb{0}> machine ddbcpu 1 Stopped at mtx_enter+0x9e: movl 0x8(%r14),%r13d mtx_enter(18) at mtx_enter+0x9e sys/kern/kern_lock.c:406 ifq_add_data(0,ffffef800f98a818) at ifq_add_data+0x31 sys/net/ifq.c:362 if_getdata(ffff800000c34000,ffffef800f98a818) at if_getdata+0x244 sys/net/if.c:-1 rtm_ifchg(ffff800000c34000) at rtm_ifchg+0xfb sys/net/rtsock.c:1797 ifioctl(ffff800001625a88,8020697f,ffff80002af86580,ffff80002a220fb8) at ifioctl+0x2398 sys/net/if.c:2357 sys_ioctl(ffff80002a220fb8,ffff80002af86760,ffff80002af866b0) at sys_ioctl+0x674 sys/kern/sys_generic.c:-1 syscall(ffff80002af86760) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002af86760) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:791 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x35a58ce7db0, count: 7 ddb{1}>