login: kernel: protection fault trap, code=0 Stopped at ktrops+0x4a: movq 0x8(%rbx),%r14 ddb> ddb> set $lines = 0 ddb> set $maxwidth = 0 ddb> show panic the kernel did not panic ddb> trace ktrops(ffff8000216177a0,deadbeefdeadbeef,0,80000520,fffffd806c922870,fffffd807f7d88a0) at ktrops+0x4a ktrcanset sys/kern/kern_ktrace.c:702 [inline] ktrops(ffff8000216177a0,deadbeefdeadbeef,0,80000520,fffffd806c922870,fffffd807f7d88a0) at ktrops+0x4a sys/kern/kern_ktrace.c:547 doktrace(fffffd806c922870,4,520,0,ffff8000216177a0) at doktrace+0x514 ktrsetchildren sys/kern/kern_ktrace.c:572 [inline] doktrace(fffffd806c922870,4,520,0,ffff8000216177a0) at doktrace+0x514 sys/kern/kern_ktrace.c:494 sys_ktrace(ffff8000216177a0,ffff8000216774c8,ffff800021677520) at sys_ktrace+0xd2 sys/kern/kern_ktrace.c:535 syscall(ffff800021677590) at syscall+0x44e sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffe5bd0, count: -5 ddb> show registers rdi 0xffff8000216177a0 rsi 0xdeadbeefdeadbeef rbp 0xffff8000216772b0 rbx 0xdeadbeefdeadbeef rdx 0 rcx 0x80000520 __kernel_virt_to_phys+0x520 rax 0x1 r8 0xfffffd806c922870 r9 0xfffffd807f7d88a0 r10 0x97280598b05a6600 r11 0xe6780a871388ac50 r12 0xdeadbeefdeadbeef r13 0xfffffd807f7d88a0 r14 0xffff8000216177a0 r15 0x80000520 __kernel_virt_to_phys+0x520 rip 0xffffffff8210f77a ktrops+0x4a cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff800021677230 ss 0x10 ktrops+0x4a: movq 0x8(%rbx),%r14 ddb> show proc PROC (syz-executor298012775) pid=160697 stat=onproc flags process=0 proc=0 pri=17, usrpri=50, nice=20 forw=0xffffffffffffffff, list=0xffff8000ffff8d28,0xffff800021616010 process=0xffff8000215eafc8 user=0xffff800021672000, vmspace=0xfffffd806e300340 estcpu=0, cpticks=0, pctcpu=0.0 user=0, sys=0, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 28622 449645 2257 0 2 0 syz-executor298012775 78833 114491 47394 0 2 0 syz-executor298012775 *72660 160697 37218 0 7 0 syz-executor298012775 11904 397218 964 0 2 0 syz-executor298012775 2257 334481 964 0 3 0x80 nanoslp syz-executor298012775 77727 90673 964 0 2 0 syz-executor298012775 83073 123832 964 0 2 0 syz-executor298012775 47394 91493 964 0 3 0x80 nanoslp syz-executor298012775 37218 3831 964 0 3 0x80 nanoslp syz-executor298012775 20897 198322 964 0 2 0 syz-executor298012775 85553 204509 964 0 2 0 syz-executor298012775 964 12758 10330 0 3 0x82 nanoslp syz-executor298012775 10330 397603 98143 0 3 0x10008a sigsusp ksh 98143 350090 56860 0 3 0x9a kqread sshd 75963 44906 1 0 3 0x100083 ttyin getty 56860 85982 1 0 3 0x88 kqread sshd 85845 224749 63435 73 3 0x1100090 kqread syslogd 63435 479499 1 0 3 0x100082 netio syslogd 36827 465261 1 0 3 0x100080 kqread resolvd 78779 86202 5323 77 3 0x100092 kqread dhcpleased 3230 203336 5323 77 3 0x100092 kqread dhcpleased 5323 293817 1 0 3 0x80 kqread dhcpleased 59797 454446 0 0 3 0x14200 bored smr 18021 124341 0 0 3 0x14200 pgzero zerothread 63499 287394 0 0 3 0x14200 aiodoned aiodoned 68026 381338 0 0 3 0x14200 syncer update 68513 164284 0 0 3 0x14200 cleaner cleaner 71841 56489 0 0 3 0x14200 reaper reaper 72994 164627 0 0 3 0x14200 pgdaemon pagedaemon 96080 14803 0 0 3 0x14200 bored viomb 75910 338459 0 0 3 0x40014200 acpi0 acpi0 21468 413243 0 0 3 0x14200 bored softnet 99271 446626 0 0 3 0x14200 bored systqmp 12721 61954 0 0 3 0x14200 bored systq 97816 36750 0 0 3 0x40014200 bored softclock 98560 399289 0 0 3 0x40014200 idle0 1 511892 0 0 3 0x82 wait 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 10131 6381K 6412K 78643K 11221 0 pcb 13 8K 8K 78643K 13 0 rtable 62 2K 2K 78643K 108 0 ifaddr 24 7K 7K 78643K 24 0 counters 19 16K 16K 78643K 19 0 ioctlops 0 0K 2K 78643K 25 0 mount 1 1K 1K 78643K 1 0 log 0 0K 0K 78643K 5 0 vnodes 1166 73K 73K 78643K 1179 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 0K 0K 78643K 2 0 sem 2 0K 0K 78643K 2 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1697 195K 286K 78643K 12548 0 file desc 1 0K 0K 78643K 1 0 proc 55 54K 55K 78643K 226 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 in_multi 11 0K 0K 78643K 11 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 25 122K 122K 78643K 25 0 exec 0 0K 2K 78643K 391 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 115 5K 5K 78643K 1929 0 UVM aobj 3 2K 2K 78643K 3 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 NDP 3 0K 0K 78643K 3 0 temp 19 4686K 4750K 78643K 2888 0 kqueue 11 16K 18K 78643K 24 0 SYN cache 2 16K 16K 78643K 2 0 ddb> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle rtpcb 120 17 0 14 1 0 1 1 0 8 0 rtentry 112 23 0 1 1 0 1 1 0 8 0 unpcb 136 33 0 20 1 0 1 1 0 8 0 syncache 296 5 0 5 2 1 1 1 0 8 1 tcpcb 736 8 0 5 1 0 1 1 0 8 0 arp 88 2 0 0 1 0 1 1 0 8 0 inpcb 304 25 0 19 1 0 1 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 96 0 0 6 0 6 6 0 8 0 art_table 32 97 0 0 1 0 1 1 0 8 0 art_node 16 22 0 2 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1476 0 77 88 0 88 88 0 8 0 ffsino 240 1479 0 77 83 0 83 83 0 8 0 nchpl 144 1706 0 141 59 0 59 59 0 8 0 uvmvnodes 80 1488 0 0 31 0 31 31 0 8 0 vnodes 224 1488 0 0 88 0 88 88 0 8 0 namei 1024 4404 0 4399 3 1 2 2 0 8 1 scxspl 216 4140 0 4140 18 17 1 8 0 8 1 plimitpl 152 15 0 9 1 0 1 1 0 8 0 sigapl 424 326 0 289 5 0 5 5 0 8 0 knotepl 120 5491 0 5461 3 1 2 2 0 8 1 kqueuepl 184 20 0 13 1 0 1 1 0 8 0 pipepl 304 79 0 76 2 1 1 1 0 8 0 fdescpl 432 313 0 289 4 0 4 4 0 8 1 filepl 120 1086 0 1027 2 0 2 2 0 8 0 lockfpl 104 6 0 4 1 0 1 1 0 8 0 lockfspl 48 4 0 2 1 0 1 1 0 8 0 sessionpl 144 17 0 9 1 0 1 1 0 8 0 pgrppl 48 17 0 9 1 0 1 1 0 8 0 ucredpl 96 64 0 54 1 0 1 1 0 8 0 zombiepl 144 289 0 289 2 1 1 1 0 8 1 processpl 1000 326 0 289 6 0 6 6 0 8 0 procpl 672 326 0 289 4 0 4 4 0 8 0 sockpl 448 75 0 53 3 0 3 3 0 8 0 mcl8k 8192 9 0 9 2 1 1 1 0 8 1 mcl4k 4096 5 0 5 2 1 1 1 0 8 1 mcl2k 2048 5676 0 5638 9 2 7 8 0 8 1 mtagpl 96 3 0 3 1 1 0 1 0 8 0 mbufpl 256 10385 0 10308 8 1 7 8 0 8 1 bufpl 288 1998 0 86 137 0 137 137 0 8 0 anonpl 24 40277 0 37356 21 3 18 18 0 188 0 amapchunkpl 152 3788 0 3586 9 1 8 8 0 158 0 amappl16 200 62 0 51 2 1 1 1 0 8 0 amappl15 192 59 0 56 1 0 1 1 0 8 0 amappl13 176 32 0 31 2 1 1 1 0 8 0 amappl12 168 9 0 9 2 1 1 1 0 8 1 amappl11 160 38 0 28 1 0 1 1 0 8 0 amappl10 152 1 0 1 1 1 0 1 0 8 0 amappl9 144 427 0 424 1 0 1 1 0 8 0 amappl8 136 340 0 337 1 0 1 1 0 8 0 amappl7 128 61 0 58 1 0 1 1 0 8 0 amappl6 120 107 0 93 1 0 1 1 0 8 0 amappl5 112 228 0 211 1 0 1 1 0 8 0 amappl4 104 576 0 557 1 0 1 1 0 8 0 amappl3 96 128 0 119 1 0 1 1 0 8 0 amappl2 88 337 0 301 1 0 1 1 0 8 0 amappl1 80 8262 0 7862 12 3 9 9 0 8 0 amappl 88 1669 0 1577 3 0 3 3 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 24 313 0 289 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 313 0 289 1 0 1 1 0 8 0 vmmpekpl 168 5918 0 5902 1 0 1 1 0 8 0 vmmpepl 168 25463 0 24389 53 3 50 50 0 357 3 vmsppl 272 312 0 289 3 1 2 2 0 8 0 rwobjpl 24 9132 0 7083 13 0 13 13 0 8 0 pdppl 4096 632 0 578 78 18 60 60 0 8 6 pvpl 32 127409 0 122437 48 7 41 41 0 265 0 pmappl 216 312 0 289 2 0 2 2 0 8 0 extentpl 40 58 0 38 1 0 1 1 0 8 0 phpool 112 430 0 27 12 0 12 12 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace ktrops(ffff8000216177a0,deadbeefdeadbeef,0,80000520,fffffd806c922870,fffffd807f7d88a0) at ktrops+0x4a ktrcanset sys/kern/kern_ktrace.c:702 [inline] ktrops(ffff8000216177a0,deadbeefdeadbeef,0,80000520,fffffd806c922870,fffffd807f7d88a0) at ktrops+0x4a sys/kern/kern_ktrace.c:547 doktrace(fffffd806c922870,4,520,0,ffff8000216177a0) at doktrace+0x514 ktrsetchildren sys/kern/kern_ktrace.c:572 [inline] doktrace(fffffd806c922870,4,520,0,ffff8000216177a0) at doktrace+0x514 sys/kern/kern_ktrace.c:494 sys_ktrace(ffff8000216177a0,ffff8000216774c8,ffff800021677520) at sys_ktrace+0xd2 sys/kern/kern_ktrace.c:535 syscall(ffff800021677590) at syscall+0x44e sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffe5bd0, count: -5 ddb> machine ddbcpu 1 No such command ddb> trace ktrops(ffff8000216177a0,deadbeefdeadbeef,0,80000520,fffffd806c922870,fffffd807f7d88a0) at ktrops+0x4a ktrcanset sys/kern/kern_ktrace.c:702 [inline] ktrops(ffff8000216177a0,deadbeefdeadbeef,0,80000520,fffffd806c922870,fffffd807f7d88a0) at ktrops+0x4a sys/kern/kern_ktrace.c:547 doktrace(fffffd806c922870,4,520,0,ffff8000216177a0) at doktrace+0x514 ktrsetchildren sys/kern/kern_ktrace.c:572 [inline] doktrace(fffffd806c922870,4,520,0,ffff8000216177a0) at doktrace+0x514 sys/kern/kern_ktrace.c:494 sys_ktrace(ffff8000216177a0,ffff8000216774c8,ffff800021677520) at sys_ktrace+0xd2 sys/kern/kern_ktrace.c:535 syscall(ffff800021677590) at syscall+0x44e sys/arch/amd64/amd64/trap.c:585 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffe5bd0, count: -5