kernel: protection fault trap, code=0 Stopped at ktrops+0x4e: 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(ffff80002a1d6010,dead4110dead4110,0,80000024,fffffd806c24f5e8,fffffd807f7d78f0) at ktrops+0x4e ktrcanset sys/kern/kern_ktrace.c:718 [inline] ktrops(ffff80002a1d6010,dead4110dead4110,0,80000024,fffffd806c24f5e8,fffffd807f7d78f0) at ktrops+0x4e sys/kern/kern_ktrace.c:561 doktrace(fffffd806c24f5e8,4,24,0,ffff80002a1d6010) at doktrace+0x524 ktrsetchildren sys/kern/kern_ktrace.c:586 [inline] doktrace(fffffd806c24f5e8,4,24,0,ffff80002a1d6010) at doktrace+0x524 sys/kern/kern_ktrace.c:508 sys_ktrace(ffff80002a1d6010,ffff80002a232b60,ffff80002a232bb0) at sys_ktrace+0xd6 sys/kern/kern_ktrace.c:549 syscall(ffff80002a232c60) at syscall+0x5f0 mi_syscall sys/sys/syscall_mi.h:183 [inline] syscall(ffff80002a232c60) at syscall+0x5f0 sys/arch/amd64/amd64/trap.c:591 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x73e7523cf080, count: -5 ddb{1}> show registers rdi 0xffff80002a1d6010 rsi 0xdead4110dead4110 rbp 0xffff80002a232950 rbx 0xdead4110dead4110 rdx 0 rcx 0x80000024 __kernel_virt_to_phys+0x24 rax 0x1 r8 0xfffffd806c24f5e8 r9 0xfffffd807f7d78f0 r10 0xdfdd2c3d0e38a6 r11 0x6fd9a05185d861b7 r12 0xdead4110dead4110 r13 0xfffffd807f7d78f0 r14 0xffff80002a1d6010 r15 0x80000024 __kernel_virt_to_phys+0x24 rip 0xffffffff8141fa9e ktrops+0x4e cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80002a2328d0 ss 0x10 ktrops+0x4e: movq 0x8(%rbx),%r14 ddb{1}> show proc PROC (syz-executor828612504) tid=312240 pid=75139 tcnt=1 stat=onproc flags process=0 proc=0 runpri=17, usrpri=50, slppri=17, nice=20 wchan=0x0, wmesg=, ps_single=0x0 forw=0xffffffffffffffff, list=0xffff80002a156548,0xffff80002a1d5d78 process=0xffff8000ffff2c78 user=0xffff80002a22d000, vmspace=0xfffffd8076632558 estcpu=36, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 39078 333863 58163 0 3 0 biowait syz-executor828612504 *75139 312240 4003 0 7 0 syz-executor828612504 41587 458418 8783 0 2 0 syz-executor828612504 78874 263217 8783 0 3 0x80 nanoslp syz-executor828612504 58163 512717 8783 0 3 0x80 nanoslp syz-executor828612504 95215 73575 8783 0 7 0 syz-executor828612504 57922 257996 8783 0 2 0x480 syz-executor828612504 98618 227477 8783 0 3 0 biowait syz-executor828612504 68743 143630 8783 0 2 0 syz-executor828612504 4003 447624 8783 0 3 0x80 nanoslp syz-executor828612504 8783 299761 66858 0 3 0x82 nanoslp syz-executor828612504 66858 478136 82712 0 3 0x10008a sigsusp ksh 82712 226981 85811 0 3 0x9a kqread sshd 84494 486001 1 0 3 0x100083 ttyin getty 85811 267688 1 0 3 0x88 kqread sshd 53656 163551 53072 74 3 0x1100092 bpf pflogd 53072 268468 1 0 3 0x80 netio pflogd 16309 295574 65072 73 3 0x1100090 kqread syslogd 65072 28361 1 0 3 0x100082 netio syslogd 40738 398096 1 0 3 0x100080 kqread resolvd 72440 492875 87818 77 3 0x100092 kqread dhcpleased 43130 326574 87818 77 3 0x100092 kqread dhcpleased 87818 147579 1 0 3 0x80 kqread dhcpleased 30090 110520 0 0 3 0x14200 bored smr 55172 57841 0 0 3 0x14200 pgzero zerothread 45183 105280 0 0 3 0x14200 aiodoned aiodoned 35961 521842 0 0 3 0x14200 syncer update 31714 239422 0 0 3 0x14200 cleaner cleaner 7362 292316 0 0 3 0x14200 reaper reaper 35662 302351 0 0 3 0x14200 pgdaemon pagedaemon 1100 369502 0 0 3 0x14200 bored viomb 59372 87841 0 0 3 0x40014200 acpi0 acpi0 62277 309022 0 0 3 0x40014200 idle1 44132 18640 0 0 3 0x14200 bored softnet3 30409 447471 0 0 3 0x14200 bored softnet2 1049 310935 0 0 3 0x14200 bored softnet1 73545 233039 0 0 3 0x14200 bored softnet0 67019 331916 0 0 3 0x14200 bored systqmp 57927 478229 0 0 3 0x14200 bored systq 81014 109764 0 0 3 0x14200 tmoslp softclockmp 94700 296455 0 0 3 0x40014200 tmoslp softclock 79451 424001 0 0 3 0x40014200 idle0 1 251906 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 39078 (syz-executor828612504) thread 0xffff80002a1d5d68 (333863) exclusive rrwlock inode r = 0 (0xfffffd806bffb2b8) #0 witness_lock+0x447 #1 rw_enter+0x3c8 sys/kern/kern_rwlock.c:309 #2 rrw_enter+0x8c sys/kern/kern_rwlock.c:464 #3 VOP_LOCK+0x8b sys/kern/vfs_vops.c:518 #4 ufs_ihashins+0x46 sys/ufs/ufs/ufs_ihash.c:140 #5 ffs_vget+0x141 sys/ufs/ffs/ffs_vfsops.c:1343 #6 ffs_inode_alloc+0x1c2 sys/ufs/ffs/ffs_alloc.c:394 #7 ufs_makeinode+0xb2 sys/ufs/ufs/ufs_vnops.c:1796 #8 ufs_create+0x45 sys/ufs/ufs/ufs_vnops.c:147 #9 VOP_CREATE+0xc0 sys/kern/vfs_vops.c:103 #10 vn_open+0x27b sys/kern/vfs_vnops.c:116 #11 doopenat+0x26e sys/kern/vfs_syscalls.c:1126 #12 syscall+0x5f0 mi_syscall sys/sys/syscall_mi.h:183 [inline] #12 syscall+0x5f0 sys/arch/amd64/amd64/trap.c:591 #13 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806c0b8d68) #0 witness_lock+0x447 #1 rw_enter+0x3c8 sys/kern/kern_rwlock.c:309 #2 rrw_enter+0x8c sys/kern/kern_rwlock.c:464 #3 VOP_LOCK+0x8b sys/kern/vfs_vops.c:518 #4 vn_lock+0x84 sys/kern/vfs_vnops.c:564 #5 vfs_lookup+0xd5 sys/kern/vfs_lookup.c:418 #6 namei+0x55a sys/kern/vfs_lookup.c:250 #7 vn_open+0x17b sys/kern/vfs_vnops.c:107 #8 doopenat+0x26e sys/kern/vfs_syscalls.c:1126 #9 syscall+0x5f0 mi_syscall sys/sys/syscall_mi.h:183 [inline] #9 syscall+0x5f0 sys/arch/amd64/amd64/trap.c:591 #10 Xsyscall+0x128 Process 75139 (syz-executor828612504) thread 0xffff80002a1d6010 (312240) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff82d4a320) #0 witness_lock+0x447 #1 __mp_acquire_count+0x48 sys/kern/kern_lock.c:227 #2 mi_switch+0x46d sys/kern/sched_bsd.c:470 #3 sleep_finish+0x19b sys/kern/kern_synch.c:414 #4 getblk+0x14c sys/kern/vfs_bio.c:1038 #5 bread+0x3e bio_doread sys/kern/vfs_bio.c:433 [inline] #5 bread+0x3e sys/kern/vfs_bio.c:478 #6 ffs_update+0x14f sys/ufs/ffs/ffs_inode.c:91 #7 ufs_inactive+0x263 sys/ufs/ufs/ufs_inode.c:110 #8 VOP_INACTIVE+0xc5 sys/kern/vfs_vops.c:489 #9 vrele+0xd3 sys/kern/vfs_subr.c:827 #10 ktrsettrace+0xb7 sys/kern/kern_ktrace.c:122 #11 ktrops+0x1a8 sys/kern/kern_ktrace.c:564 #12 doktrace+0x524 ktrsetchildren sys/kern/kern_ktrace.c:586 [inline] #12 doktrace+0x524 sys/kern/kern_ktrace.c:508 #13 sys_ktrace+0xd6 sys/kern/kern_ktrace.c:549 #14 syscall+0x5f0 mi_syscall sys/sys/syscall_mi.h:183 [inline] #14 syscall+0x5f0 sys/arch/amd64/amd64/trap.c:591 #15 Xsyscall+0x128 Process 98618 (syz-executor828612504) thread 0xffff80002a195568 (227477) exclusive rrwlock inode r = 0 (0xfffffd806bffbb38) #0 witness_lock+0x447 #1 rw_enter+0x3c8 sys/kern/kern_rwlock.c:309 #2 rrw_enter+0x8c sys/kern/kern_rwlock.c:464 #3 VOP_LOCK+0x8b sys/kern/vfs_vops.c:518 #4 ufs_ihashins+0x46 sys/ufs/ufs/ufs_ihash.c:140 #5 ffs_vget+0x141 sys/ufs/ffs/ffs_vfsops.c:1343 #6 ffs_inode_alloc+0x1c2 sys/ufs/ffs/ffs_alloc.c:394 #7 ufs_mkdir+0xf8 sys/ufs/ufs/ufs_vnops.c:1145 #8 VOP_MKDIR+0xc3 sys/kern/vfs_vops.c:388 #9 domkdirat+0x125 sys/kern/vfs_syscalls.c:3073 #10 syscall+0x5f0 mi_syscall sys/sys/syscall_mi.h:183 [inline] #10 syscall+0x5f0 sys/arch/amd64/amd64/trap.c:591 #11 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806cca0b38) #0 witness_lock+0x447 #1 rw_enter+0x3c8 sys/kern/kern_rwlock.c:309 #2 rrw_enter+0x8c sys/kern/kern_rwlock.c:464 #3 VOP_LOCK+0x8b sys/kern/vfs_vops.c:518 #4 vn_lock+0x84 sys/kern/vfs_vnops.c:564 #5 vfs_lookup+0xd5 sys/kern/vfs_lookup.c:418 #6 namei+0x55a sys/kern/vfs_lookup.c:250 #7 domkdirat+0x79 sys/kern/vfs_syscalls.c:3058 #8 syscall+0x5f0 mi_syscall sys/sys/syscall_mi.h:183 [inline] #8 syscall+0x5f0 sys/arch/amd64/amd64/trap.c:591 #9 Xsyscall+0x128 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10165 6456K 6457K 166960K 11243 0 pcb 15 10K 10K 166960K 15 0 rtable 58 1K 2K 166960K 112 0 pf 15 6K 10K 166960K 26 0 ifaddr 13 9K 9K 166960K 13 0 ifgroup 22 1K 1K 166960K 22 0 counters 48 34K 34K 166960K 48 0 ioctlops 0 0K 4K 166960K 1475 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1176 74K 74K 166960K 1192 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 1K 166960K 2 0 VM map 2 1K 1K 166960K 2 0 sem 2 0K 0K 166960K 2 0 dirhash 12 2K 2K 166960K 12 0 ACPI 1697 195K 286K 166960K 12548 0 file desc 1 0K 0K 166960K 1 0 proc 67 91K 91K 166960K 302 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 in_multi 11 0K 0K 166960K 11 0 ether_multi 1 0K 0K 166960K 1 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 25 122K 122K 166960K 25 0 exec 0 0K 1K 166960K 266 0 tdb 3 0K 0K 166960K 3 0 pagedep 1 8K 8K 166960K 1 0 inodedep 1 32K 32K 166960K 1 0 newblk 1 0K 0K 166960K 1 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 126 6K 6K 166960K 3179 0 UVM aobj 3 2K 2K 166960K 3 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 NDP 4 0K 0K 166960K 4 0 temp 1 6696K 6760K 166960K 4165 0 kqueue 11 16K 18K 166960K 24 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 24 0 0 1 0 1 1 0 8 0 rtpcb 120 19 0 16 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 312 5 0 5 2 1 1 1 0 8 1 tcpqe 32 171 0 171 1 1 0 1 0 8 0 tcpcb 808 8 0 5 1 0 1 1 0 8 0 arp 120 2 0 0 1 0 1 1 0 8 0 inpcb 368 33 0 27 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 8 0 6 2 1 1 1 0 8 0 pfstkey 128 8 0 6 2 1 1 1 0 8 0 pfstate 376 8 0 6 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 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 2573 0 941 103 0 103 103 0 8 0 ffsino 272 2573 0 941 109 0 109 109 0 8 0 nchpl 144 3890 0 2293 60 0 60 60 0 8 0 uvmvnodes 80 2587 0 0 53 0 53 53 0 8 0 vnodes 216 2587 0 0 144 0 144 144 0 8 0 namei 1024 9636 0 9634 3 1 2 2 0 8 1 percpumem 16 38 0 0 1 0 1 1 0 8 0 kstatmem 264 8 0 0 1 0 1 1 0 8 0 scxspl 216 10799 0 10797 10 9 1 8 1 8 0 plimitpl 152 17 0 10 1 0 1 1 0 8 0 sigapl 424 909 0 863 6 0 6 6 0 8 0 knotepl 120 47 0 0 2 0 2 2 0 8 0 kqueuepl 216 20 0 13 1 0 1 1 0 8 0 pipepl 320 93 0 90 2 1 1 1 0 8 0 fdescpl 496 891 0 866 4 0 4 4 0 8 0 filepl 152 2396 0 2334 3 0 3 3 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 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 144 866 0 863 2 1 1 1 0 8 0 processpl 1136 909 0 863 4 0 4 4 0 8 0 procpl 680 909 0 863 5 0 5 5 0 8 0 sockpl 488 87 0 63 5 1 4 4 0 8 0 mcl8k 8192 1 0 0 1 0 1 1 0 8 0 mcl4k 4096 2 0 0 1 0 1 1 0 8 0 mcl2k 2048 291 0 0 33 1 32 33 0 8 0 mtagpl 96 4 0 0 1 0 1 1 0 8 0 mbufpl 256 317 0 0 17 0 17 17 0 8 0 bufpl 288 3608 0 90 252 0 252 252 0 8 0 anonpl 24 185823 0 183629 27 13 14 25 0 186 0 amapchunkpl 152 9487 0 9265 11 2 9 9 0 158 0 amappl16 200 5915 0 5905 6 5 1 5 0 8 0 amappl15 192 9 0 9 1 1 0 1 0 8 0 amappl14 184 111 0 100 1 0 1 1 0 8 0 amappl13 176 10 0 10 1 1 0 1 0 8 0 amappl12 168 865 0 843 2 1 1 2 0 8 0 amappl11 160 57 0 43 1 0 1 1 0 8 0 amappl10 152 12 0 11 1 0 1 1 0 8 0 amappl9 144 142 0 142 1 1 0 1 0 8 0 amappl8 136 40 0 38 1 0 1 1 0 8 0 amappl7 128 103 0 91 1 0 1 1 0 8 0 amappl6 120 121 0 116 1 0 1 1 0 8 0 amappl5 112 106 0 95 1 0 1 1 0 8 0 amappl4 104 927 0 897 1 0 1 1 0 8 0 amappl3 96 2201 0 2149 3 1 2 2 0 8 0 amappl2 88 633 0 578 2 0 2 2 0 8 0 amappl1 80 11398 0 10875 16 4 12 12 0 8 0 amappl 88 2879 0 2800 2 0 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 24 891 0 866 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 891 0 866 1 0 1 1 0 8 0 vmmpekpl 168 8504 0 8487 1 0 1 1 0 8 0 vmmpepl 168 49334 0 48037 67 7 60 60 0 357 3 vmsppl 448 890 0 866 5 1 4 4 0 8 1 rwobjpl 56 20728 0 17370 50 2 48 48 0 8 0 pdppl 4096 1789 0 1732 95 32 63 69 0 8 6 pvpl 32 7070 0 0 58 0 58 58 0 265 0 pmappl 248 890 0 866 2 0 2 2 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 641 0 38 18 0 18 18 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x1e: addq $0x8,%rsp ddb{0}> trace x86_ipi_db(ffffffff82cb8ff0) at x86_ipi_db+0x1e 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+0x27 __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc intr_handler(ffff80002a213c00,ffff80000027b700) at intr_handler+0x62 sys/arch/amd64/amd64/intr.c:539 Xintr_ioapic_edge26_untramp() at Xintr_ioapic_edge26_untramp+0x18f __mp_lock(ffffffff82d4a118) at __mp_lock+0x12e __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82d4a118) at __mp_lock+0x12e sys/kern/kern_lock.c:147 intr_handler(ffff80002a213d50,ffff80000007bd80) at intr_handler+0x62 sys/arch/amd64/amd64/intr.c:539 Xintr_ioapic_edge23_untramp() at Xintr_ioapic_edge23_untramp+0x18f __mp_lock(ffffffff82d4a118) at __mp_lock+0x122 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82d4a118) at __mp_lock+0x122 sys/kern/kern_lock.c:147 syscall(ffff80002a213f50) at syscall+0x5d3 mi_syscall sys/sys/syscall_mi.h:183 [inline] syscall(ffff80002a213f50) at syscall+0x5d3 sys/arch/amd64/amd64/trap.c:591 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x73e7523cebc0, count: -12 ddb{0}> machine ddbcpu 1 Stopped at ktrops+0x4e: movq 0x8(%rbx),%r14 ddb{1}> trace ktrops(ffff80002a1d6010,dead4110dead4110,0,80000024,fffffd806c24f5e8,fffffd807f7d78f0) at ktrops+0x4e ktrcanset sys/kern/kern_ktrace.c:718 [inline] ktrops(ffff80002a1d6010,dead4110dead4110,0,80000024,fffffd806c24f5e8,fffffd807f7d78f0) at ktrops+0x4e sys/kern/kern_ktrace.c:561 doktrace(fffffd806c24f5e8,4,24,0,ffff80002a1d6010) at doktrace+0x524 ktrsetchildren sys/kern/kern_ktrace.c:586 [inline] doktrace(fffffd806c24f5e8,4,24,0,ffff80002a1d6010) at doktrace+0x524 sys/kern/kern_ktrace.c:508 sys_ktrace(ffff80002a1d6010,ffff80002a232b60,ffff80002a232bb0) at sys_ktrace+0xd6 sys/kern/kern_ktrace.c:549 syscall(ffff80002a232c60) at syscall+0x5f0 mi_syscall sys/sys/syscall_mi.h:183 [inline] syscall(ffff80002a232c60) at syscall+0x5f0 sys/arch/amd64/amd64/trap.c:591 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x73e7523cf080, count: -5