kernel: protection fault trap, code=0 Stopped at ktrops+0x4a: movq 0x8(%rbx),%r14 ddb{1}> ddb{1}> set $lines = 0 ddb{1}> set $maxwidth = 0 ddb{1}> show panic the kernel did not panic ddb{1}> trace ktrops(ffff800021228db8,dead4110dead4110,0,80000110,fffffd806c8be960,fffffd807f7d78f0) at ktrops+0x4a ktrcanset sys/kern/kern_ktrace.c:697 [inline] ktrops(ffff800021228db8,dead4110dead4110,0,80000110,fffffd806c8be960,fffffd807f7d78f0) at ktrops+0x4a sys/kern/kern_ktrace.c:540 doktrace(fffffd806c8be960,4,110,ffffffff,ffff800021228db8) at doktrace+0x418 ktrsetchildren sys/kern/kern_ktrace.c:565 [inline] doktrace(fffffd806c8be960,4,110,ffffffff,ffff800021228db8) at doktrace+0x418 sys/kern/kern_ktrace.c:472 sys_ktrace(ffff800021228db8,ffff80002129dd78,ffff80002129ddc0) at sys_ktrace+0xd2 sys/kern/kern_ktrace.c:528 syscall(ffff80002129de40) at syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] syscall(ffff80002129de40) at syscall+0x5e2 sys/arch/amd64/amd64/trap.c:625 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7fffffb580, count: -5 ddb{1}> show registers rdi 0xffff800021228db8 rsi 0xdead4110dead4110 rbp 0xffff80002129db60 rbx 0xdead4110dead4110 rdx 0 rcx 0x80000110 __kernel_virt_to_phys+0x110 rax 0x1 r8 0xfffffd806c8be960 r9 0xfffffd807f7d78f0 r10 0xb3317854b9a36ef8 r11 0x88454647592a5fe8 r12 0xffff8000fffffaa0 r13 0xfffffd807f7d78f0 r14 0xffff800021228db8 r15 0x80000110 __kernel_virt_to_phys+0x110 rip 0xffffffff81721c4a ktrops+0x4a cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80002129dae0 ss 0x10 ktrops+0x4a: movq 0x8(%rbx),%r14 ddb{1}> show proc PROC (syz-executor3847699085) pid=304831 stat=onproc flags process=0 proc=0 pri=17, usrpri=50, nice=20 forw=0xffffffffffffffff, list=0xffff800021229898,0xffff800021228b10 process=0xffff8000ffff5d68 user=0xffff800021298000, vmspace=0xfffffd806c8efdd8 estcpu=0, cpticks=0, pctcpu=0.0 user=0, sys=0, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 41544 130558 41762 0 2 0 syz-executor3847699085 80605 148549 7894 0 7 0 syz-executor3847699085 30033 131115 22981 0 3 0 biowait syz-executor3847699085 * 4743 304831 7899 0 7 0 syz-executor3847699085 31536 10075 79187 0 2 0 syz-executor3847699085 41762 321890 24567 0 2 0 syz-executor3847699085 22981 519200 24567 0 3 0x80 nanoslp syz-executor3847699085 7899 155987 24567 0 3 0x80 nanoslp syz-executor3847699085 64873 145342 24567 0 2 0x480 syz-executor3847699085 1042 12409 24567 0 2 0x480 syz-executor3847699085 95799 352792 24567 0 2 0 syz-executor3847699085 79187 12993 24567 0 3 0x80 nanoslp syz-executor3847699085 7894 178110 24567 0 3 0x80 nanoslp syz-executor3847699085 24567 332450 65298 0 3 0x82 nanoslp syz-executor3847699085 65298 445216 38344 0 3 0x10008a sigsusp ksh 38344 440753 77445 0 3 0x9a kqread sshd 90578 480712 1 0 3 0x100083 ttyin getty 77445 111471 1 0 3 0x88 kqread sshd 41253 368230 23015 74 3 0x1100092 bpf pflogd 23015 266927 1 0 3 0x80 netio pflogd 70886 275953 16415 73 3 0x1100090 kqread syslogd 16415 361131 1 0 3 0x100082 netio syslogd 80054 292563 1 0 3 0x100080 kqread resolvd 14182 149266 99715 77 3 0x100092 kqread dhcpleased 77097 429390 99715 77 3 0x100092 kqread dhcpleased 99715 334170 1 0 3 0x80 kqread dhcpleased 14542 243069 0 0 3 0x14200 bored smr 97743 17967 0 0 3 0x14200 pgzero zerothread 78237 193110 0 0 3 0x14200 aiodoned aiodoned 89418 13821 0 0 3 0x14200 syncer update 28500 314239 0 0 3 0x14200 cleaner cleaner 19300 123368 0 0 3 0x14200 reaper reaper 95427 181214 0 0 3 0x14200 pgdaemon pagedaemon 36095 138902 0 0 3 0x14200 bored viomb 59039 351399 0 0 3 0x40014200 acpi0 acpi0 26501 322349 0 0 3 0x40014200 idle1 6376 233704 0 0 3 0x14200 bored softnet 19319 470511 0 0 3 0x14200 bored softnet 2582 285665 0 0 3 0x14200 bored softnet 129 63016 0 0 3 0x14200 bored softnet 7159 212386 0 0 3 0x14200 bored systqmp 38430 88127 0 0 3 0x14200 bored systq 92466 154963 0 0 3 0x40014200 bored softclock 4207 85778 0 0 3 0x40014200 idle0 1 468295 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 30033 (syz-executor3847699085) thread 0xffff800021228b00 (131115) exclusive rrwlock inode r = 0 (0xfffffd806c8b1f80) #0 witness_lock+0x44d #1 rw_enter+0x3e1 sys/kern/kern_rwlock.c:310 #2 rrw_enter+0x8b sys/kern/kern_rwlock.c:465 #3 VOP_LOCK+0x87 sys/kern/vfs_vops.c:518 #4 ufs_ihashins+0x42 sys/ufs/ufs/ufs_ihash.c:140 #5 ffs_vget+0x141 sys/ufs/ffs/ffs_vfsops.c:1353 #6 ffs_inode_alloc+0x1be sys/ufs/ffs/ffs_alloc.c:394 #7 ufs_makeinode+0xae sys/ufs/ufs/ufs_vnops.c:1818 #8 ufs_create+0x41 sys/ufs/ufs/ufs_vnops.c:151 #9 VOP_CREATE+0xbc sys/kern/vfs_vops.c:103 #10 vn_open+0x28f sys/kern/vfs_vnops.c:116 #11 doopenat+0x26a sys/kern/vfs_syscalls.c:1127 #12 syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] #12 syscall+0x5e2 sys/arch/amd64/amd64/trap.c:625 #13 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806c8b12c0) #0 witness_lock+0x44d #1 rw_enter+0x3e1 sys/kern/kern_rwlock.c:310 #2 rrw_enter+0x8b sys/kern/kern_rwlock.c:465 #3 VOP_LOCK+0x87 sys/kern/vfs_vops.c:518 #4 vn_lock+0x84 sys/kern/vfs_vnops.c:564 #5 vfs_lookup+0xd1 sys/kern/vfs_lookup.c:418 #6 namei+0x55a sys/kern/vfs_lookup.c:250 #7 vn_open+0x188 sys/kern/vfs_vnops.c:107 #8 doopenat+0x26a sys/kern/vfs_syscalls.c:1127 #9 syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] #9 syscall+0x5e2 sys/arch/amd64/amd64/trap.c:625 #10 Xsyscall+0x128 Process 4743 (syz-executor3847699085) thread 0xffff800021228db8 (304831) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff82db6228) #0 witness_lock+0x44d #1 __mp_acquire_count+0x48 sys/kern/kern_lock.c:227 #2 mi_switch+0x3bb sys/kern/sched_bsd.c:405 #3 sleep_finish+0x180 sys/kern/kern_synch.c:417 #4 tsleep+0x12c sys/kern/kern_synch.c:155 #5 getblk+0x13c sys/kern/vfs_bio.c:1028 #6 bread+0x3a bio_doread sys/kern/vfs_bio.c:433 [inline] #6 bread+0x3a sys/kern/vfs_bio.c:478 #7 ffs_update+0x14b sys/ufs/ffs/ffs_inode.c:91 #8 ufs_inactive+0x25f sys/ufs/ufs/ufs_inode.c:110 #9 VOP_INACTIVE+0xc4 sys/kern/vfs_vops.c:489 #10 vrele+0xd2 sys/kern/vfs_subr.c:827 #11 ktrsettrace+0xb3 sys/kern/kern_ktrace.c:122 #12 ktrops+0x1a4 sys/kern/kern_ktrace.c:543 #13 doktrace+0x418 ktrsetchildren sys/kern/kern_ktrace.c:565 [inline] #13 doktrace+0x418 sys/kern/kern_ktrace.c:472 #14 sys_ktrace+0xd2 sys/kern/kern_ktrace.c:528 #15 syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] #15 syscall+0x5e2 sys/arch/amd64/amd64/trap.c:625 #16 Xsyscall+0x128 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10173 6457K 6458K 78643K 11263 0 pcb 13 8K 8K 78643K 13 0 rtable 58 1K 2K 78643K 113 0 ifaddr 28 16K 16K 78643K 31 0 counters 44 33K 33K 78643K 44 0 ioctlops 0 0K 4K 78643K 1473 0 mount 1 1K 1K 78643K 1 0 log 0 0K 0K 78643K 4 0 vnodes 1169 73K 73K 78643K 1185 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 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 67 91K 91K 78643K 295 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 1K 78643K 267 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 8 62K 64K 78643K 10 0 UVM amap 120 6K 6K 78643K 1812 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 4 0K 0K 78643K 4 0 temp 23 5761K 5825K 78643K 3107 0 kqueue 11 16K 18K 78643K 24 0 SYN cache 2 16K 16K 78643K 2 0 ddb{1}> 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 20 0 17 1 0 1 1 0 8 0 rtentry 112 23 0 1 1 0 1 1 0 8 0 unpcb 144 35 0 20 1 0 1 1 0 8 0 syncache 296 5 0 5 2 1 1 1 0 8 1 tcpqe 32 63 0 63 1 1 0 1 0 8 0 tcpcb 776 8 0 5 1 0 1 1 0 8 0 arp 120 2 0 0 1 0 1 1 0 8 0 inpcb 368 32 0 26 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 9 0 7 2 1 1 1 0 8 0 pfstkey 128 9 0 7 2 1 1 1 0 8 0 pfstate 384 9 0 7 2 1 1 1 0 8 0 pfrule 1344 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 97 0 0 7 0 7 7 0 8 0 art_table 32 98 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 1464 0 53 89 0 89 89 0 8 0 ffsino 272 1464 0 53 95 0 95 95 0 8 0 nchpl 144 1677 0 89 60 0 60 60 0 8 1 uvmvnodes 80 1478 0 0 31 0 31 31 0 8 0 vnodes 216 1478 0 0 83 0 83 83 0 8 0 namei 1024 4658 0 4657 3 1 2 2 0 8 1 percpumem 16 35 0 0 1 0 1 1 0 8 0 kstatmem 264 8 0 0 1 0 1 1 0 8 0 scxspl 216 5117 0 5116 18 17 1 8 0 8 0 plimitpl 152 17 0 10 1 0 1 1 0 8 0 sigapl 424 358 0 311 7 1 6 6 0 8 0 knotepl 120 48 0 0 2 0 2 2 0 8 0 kqueuepl 216 20 0 13 1 0 1 1 0 8 0 pipepl 320 90 0 87 2 1 1 1 0 8 0 fdescpl 496 341 0 313 4 0 4 4 0 8 0 filepl 152 1285 0 1223 3 0 3 3 0 8 0 lockfpl 104 31 0 26 1 0 1 1 0 8 0 lockfspl 48 18 0 13 1 0 1 1 0 8 0 sessionpl 144 18 0 9 1 0 1 1 0 8 0 pgrppl 48 18 0 9 1 0 1 1 0 8 0 ucredpl 104 71 0 59 1 0 1 1 0 8 0 zombiepl 144 313 0 311 2 1 1 1 0 8 0 processpl 1072 358 0 311 4 0 4 4 0 8 0 procpl 696 358 0 311 5 0 5 5 0 8 0 sockpl 488 87 0 63 5 1 4 4 0 8 0 mcl8k 8192 8 0 0 1 0 1 1 0 8 0 mcl4k 4096 2 0 0 1 0 1 1 0 8 0 mcl2k 2048 281 0 0 31 4 27 31 0 8 0 mtagpl 96 2 0 0 1 0 1 1 0 8 0 mbufpl 256 354 0 0 20 1 19 20 0 8 0 bufpl 288 2479 0 93 171 0 171 171 0 8 0 anonpl 24 101365 0 98476 31 13 18 26 0 186 0 amapchunkpl 152 4619 0 4477 8 2 6 6 0 158 0 amappl16 200 1932 0 1920 6 5 1 5 0 8 0 amappl15 192 7 0 7 1 1 0 1 0 8 0 amappl14 184 100 0 89 1 0 1 1 0 8 0 amappl13 176 5 0 5 1 1 0 1 0 8 0 amappl12 168 327 0 326 2 1 1 1 0 8 0 amappl11 160 49 0 35 1 0 1 1 0 8 0 amappl10 152 4 0 4 1 1 0 1 0 8 0 amappl9 144 949 0 949 2 1 1 1 0 8 1 amappl8 136 24 0 23 2 1 1 1 0 8 0 amappl7 128 98 0 85 1 0 1 1 0 8 0 amappl6 120 89 0 82 1 0 1 1 0 8 0 amappl5 112 83 0 74 1 0 1 1 0 8 0 amappl4 104 395 0 371 1 0 1 1 0 8 0 amappl3 96 528 0 483 2 0 2 2 0 8 0 amappl2 88 531 0 476 2 0 2 2 0 8 0 amappl1 80 9981 0 9363 16 3 13 13 0 8 0 amappl 88 1468 0 1407 3 1 2 2 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 24 341 0 313 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 341 0 313 1 0 1 1 0 8 0 vmmpekpl 168 7182 0 7164 1 0 1 1 0 8 0 vmmpepl 168 32524 0 30985 75 8 67 67 0 357 0 vmsppl 440 340 0 313 5 1 4 4 0 8 0 rwobjpl 56 13176 0 10893 34 1 33 33 0 8 0 pdppl 4096 689 0 626 89 24 65 65 0 8 2 pvpl 32 197777 0 191923 69 21 48 57 0 265 0 pmappl 248 340 0 313 2 0 2 2 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 515 0 32 14 0 14 14 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x1a: addq $0x8,%rsp ddb{0}> trace x86_ipi_db(ffffffff82b24ff0) 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 __mp_lock(ffffffff82db6020) at __mp_lock+0x122 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82db6020) at __mp_lock+0x122 sys/kern/kern_lock.c:147 intr_handler(ffff8000212aefa0,ffff80000006ba00) at intr_handler+0x5e sys/arch/amd64/amd64/intr.c:532 Xintr_ioapic_edge21_untramp() at Xintr_ioapic_edge21_untramp+0x18f __mp_lock(ffffffff82db6020) at __mp_lock+0x122 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82db6020) at __mp_lock+0x122 sys/kern/kern_lock.c:147 syscall(ffff8000212af170) at syscall+0x5cd mi_syscall sys/sys/syscall_mi.h:110 [inline] syscall(ffff8000212af170) at syscall+0x5cd sys/arch/amd64/amd64/trap.c:625 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7fffffb5f0, count: -9 ddb{0}> machine ddbcpu 1 Stopped at ktrops+0x4a: movq 0x8(%rbx),%r14 ddb{1}> trace ktrops(ffff800021228db8,dead4110dead4110,0,80000110,fffffd806c8be960,fffffd807f7d78f0) at ktrops+0x4a ktrcanset sys/kern/kern_ktrace.c:697 [inline] ktrops(ffff800021228db8,dead4110dead4110,0,80000110,fffffd806c8be960,fffffd807f7d78f0) at ktrops+0x4a sys/kern/kern_ktrace.c:540 doktrace(fffffd806c8be960,4,110,ffffffff,ffff800021228db8) at doktrace+0x418 ktrsetchildren sys/kern/kern_ktrace.c:565 [inline] doktrace(fffffd806c8be960,4,110,ffffffff,ffff800021228db8) at doktrace+0x418 sys/kern/kern_ktrace.c:472 sys_ktrace(ffff800021228db8,ffff80002129dd78,ffff80002129ddc0) at sys_ktrace+0xd2 sys/kern/kern_ktrace.c:528 syscall(ffff80002129de40) at syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] syscall(ffff80002129de40) at syscall+0x5e2 sys/arch/amd64/amd64/trap.c:625 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7fffffb580, count: -5