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(ffff80002a18b2c8,deaf4152deaf4152,0,80000100,fffffd806bf03cf8,fffffd807f7d76e8) at ktrops+0x4e ktrcanset sys/kern/kern_ktrace.c:718 [inline] ktrops(ffff80002a18b2c8,deaf4152deaf4152,0,80000100,fffffd806bf03cf8,fffffd807f7d76e8) at ktrops+0x4e sys/kern/kern_ktrace.c:561 doktrace(fffffd806bf03cf8,4,100,ffffffff,ffff80002a18b2c8) at doktrace+0x428 ktrsetchildren sys/kern/kern_ktrace.c:586 [inline] doktrace(fffffd806bf03cf8,4,100,ffffffff,ffff80002a18b2c8) at doktrace+0x428 sys/kern/kern_ktrace.c:493 sys_ktrace(ffff80002a18b2c8,ffff80002a21c070,ffff80002a21bfc0) at sys_ktrace+0xd6 sys/kern/kern_ktrace.c:549 syscall(ffff80002a21c070) at syscall+0x533 mi_syscall sys/sys/syscall_mi.h:183 [inline] syscall(ffff80002a21c070) at syscall+0x533 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x78b9923ccdf0, count: -5 ddb{1}> show registers rdi 0xffff80002a18b2c8 rsi 0xdeaf4152deaf4152 rbp 0xffff80002a21bd90 rbx 0xdeaf4152deaf4152 rdx 0 rcx 0x80000100 __kernel_virt_to_phys+0x100 rax 0x1 r8 0xfffffd806bf03cf8 r9 0xfffffd807f7d76e8 r10 0x2bc8c6d0ea921195 r11 0x6aeb17124adc0b02 r12 0xffff8000fffff9b0 r13 0xfffffd807f7d76e8 r14 0xffff80002a18b2c8 r15 0x80000100 __kernel_virt_to_phys+0x100 rip 0xffffffff824b857e ktrops+0x4e cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80002a21bd10 ss 0x10 ktrops+0x4e: movq 0x8(%rbx),%r14 ddb{1}> show proc PROC (syz-executor1223144785) tid=399361 pid=14937 tcnt=1 stat=onproc flags process=0 proc=0 runpri=17, usrpri=59, slppri=17, nice=20 wchan=0x0, wmesg=, ps_single=0x0 forw=0xffffffffffffffff, list=0xffff80002a146548,0xffff80002a18b580 process=0xffff8000ffff0488 user=0xffff80002a217000, vmspace=0xfffffd80786a71d8 estcpu=36, cpticks=0, pctcpu=0.0, user=0, sys=0, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 17738 134409 31801 0 3 0 biowait syz-executor1223144785 95257 252749 16514 0 7 0 syz-executor1223144785 *14937 399361 85843 0 7 0 syz-executor1223144785 22412 88143 64298 0 2 0x480 syz-executor1223144785 31668 24518 64298 0 2 0 syz-executor1223144785 85843 296198 64298 0 3 0x80 nanoslp syz-executor1223144785 31801 377753 64298 0 3 0x80 nanoslp syz-executor1223144785 93023 335829 64298 0 2 0 syz-executor1223144785 16514 186507 64298 0 3 0x80 nanoslp syz-executor1223144785 50613 510552 64298 0 3 0x80 nanoslp syz-executor1223144785 59648 362575 64298 0 2 0 syz-executor1223144785 64298 292789 10161 0 3 0x82 nanoslp syz-executor1223144785 10161 477722 51869 0 3 0x10008a sigsusp ksh 51869 35301 69262 0 3 0x9a kqread sshd 87066 78195 1 0 3 0x100083 ttyin getty 69262 176035 1 0 3 0x88 kqread sshd 3844 92304 32029 74 3 0x1100092 bpf pflogd 32029 97460 1 0 3 0x80 netio pflogd 65084 447059 6726 73 3 0x1100090 kqread syslogd 6726 408730 1 0 3 0x100082 netio syslogd 43100 277774 1 0 3 0x100080 kqread resolvd 77204 170592 41610 77 3 0x100092 kqread dhcpleased 91970 129927 41610 77 3 0x100092 kqread dhcpleased 41610 62969 1 0 3 0x80 kqread dhcpleased 76504 204397 0 0 3 0x14200 bored smr 93896 62641 0 0 3 0x14200 pgzero zerothread 89275 379805 0 0 3 0x14200 aiodoned aiodoned 31997 97022 0 0 3 0x14200 syncer update 3783 399980 0 0 3 0x14200 cleaner cleaner 15413 189471 0 0 3 0x14200 reaper reaper 84786 309768 0 0 3 0x14200 pgdaemon pagedaemon 85928 456295 0 0 3 0x14200 bored viomb 50123 130501 0 0 3 0x40014200 acpi0 acpi0 70572 369079 0 0 3 0x40014200 idle1 51875 1184 0 0 3 0x14200 bored softnet3 29207 122345 0 0 3 0x14200 bored softnet2 94063 30316 0 0 3 0x14200 bored softnet1 14818 58606 0 0 3 0x14200 bored softnet0 23838 311512 0 0 3 0x14200 bored systqmp 71741 298809 0 0 3 0x14200 bored systq 9880 124618 0 0 3 0x14200 tmoslp softclockmp 26170 249753 0 0 3 0x40014200 tmoslp softclock 87733 222092 0 0 3 0x40014200 idle0 1 434078 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 17738 (syz-executor1223144785) thread 0xffff80002a18bd68 (134409) exclusive rrwlock inode r = 0 (0xfffffd806be81098) #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:1230 #6 ffs_inode_alloc+0x1c5 sys/ufs/ffs/ffs_alloc.c:393 #7 ufs_makeinode+0xae sys/ufs/ufs/ufs_vnops.c:1743 #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+0x533 mi_syscall sys/sys/syscall_mi.h:183 [inline] #12 syscall+0x533 sys/arch/amd64/amd64/trap.c:577 #13 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806be816f8) #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+0x533 mi_syscall sys/sys/syscall_mi.h:183 [inline] #9 syscall+0x533 sys/arch/amd64/amd64/trap.c:577 #10 Xsyscall+0x128 Process 14937 (syz-executor1223144785) thread 0xffff80002a18b2c8 (399361) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff82d95a40) #0 witness_lock+0x447 #1 __mp_acquire_count+0x48 sys/kern/kern_lock.c:227 #2 mi_switch+0x46f sys/kern/sched_bsd.c:470 #3 sleep_finish+0x19b sys/kern/kern_synch.c:414 #4 getblk+0x14c sys/kern/vfs_bio.c:1025 #5 bread+0x3e bio_doread sys/kern/vfs_bio.c:430 [inline] #5 bread+0x3e sys/kern/vfs_bio.c:475 #6 ffs_update+0x14f sys/ufs/ffs/ffs_inode.c:91 #7 ufs_inactive+0x229 sys/ufs/ufs/ufs_inode.c:95 #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+0x428 ktrsetchildren sys/kern/kern_ktrace.c:586 [inline] #12 doktrace+0x428 sys/kern/kern_ktrace.c:493 #13 sys_ktrace+0xd6 sys/kern/kern_ktrace.c:549 #14 syscall+0x533 mi_syscall sys/sys/syscall_mi.h:183 [inline] #14 syscall+0x533 sys/arch/amd64/amd64/trap.c:577 #15 Xsyscall+0x128 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10155 6455K 6456K 166960K 11233 0 pcb 15 10K 10K 166960K 15 0 rtable 58 1K 2K 166960K 108 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 260 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 126 6K 6K 166960K 3031 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 6756K 6820K 166960K 4116 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 17 0 14 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 336 5 0 5 2 1 1 1 0 8 1 tcpqe 32 223 0 223 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 392 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 9 0 2 1 0 1 1 0 8 0 pfstkey 128 9 0 2 1 0 1 1 0 8 0 pfstate 376 9 0 2 1 0 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 2524 0 882 103 0 103 103 0 8 0 ffsino 272 2524 0 882 110 0 110 110 0 8 0 nchpl 144 3792 0 2193 60 0 60 60 0 8 0 uvmvnodes 80 2538 0 0 52 0 52 52 0 8 0 vnodes 216 2538 0 0 141 0 141 141 0 8 0 namei 1024 9382 0 9381 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 10643 0 10642 10 8 2 8 1 8 1 plimitpl 152 17 0 10 1 0 1 1 0 8 0 sigapl 424 879 0 833 6 0 6 6 0 8 0 knotepl 120 55 0 0 2 0 2 2 0 8 0 kqueuepl 216 20 0 13 1 0 1 1 0 8 0 pipepl 320 91 0 88 2 1 1 1 0 8 0 fdescpl 496 861 0 835 4 0 4 4 0 8 0 filepl 152 2336 0 2272 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 144 835 0 833 2 1 1 1 0 8 0 processpl 1136 879 0 833 4 0 4 4 0 8 0 procpl 680 879 0 833 5 0 5 5 0 8 0 sockpl 584 85 0 61 2 0 2 2 0 8 0 mcl8k 8192 2 0 0 1 0 1 1 0 8 0 mcl4k 4096 7 0 0 1 0 1 1 0 8 0 mcl2k 2048 380 0 0 48 0 48 48 0 8 0 mtagpl 96 3 0 0 1 0 1 1 0 8 0 mbufpl 256 408 0 0 26 0 26 26 0 8 0 bufpl 280 3663 0 90 256 0 256 256 0 8 0 anonpl 24 169895 0 167702 25 11 14 23 0 186 0 amapchunkpl 152 9227 0 9005 10 1 9 9 0 158 0 amappl16 200 4919 0 4908 5 4 1 4 0 8 0 amappl15 192 11 0 10 1 0 1 1 0 8 0 amappl14 184 116 0 105 1 0 1 1 0 8 0 amappl13 176 12 0 12 1 1 0 1 0 8 0 amappl12 168 842 0 820 2 1 1 2 0 8 0 amappl11 160 74 0 59 1 0 1 1 0 8 0 amappl10 152 20 0 20 2 1 1 1 0 8 1 amappl9 144 366 0 366 1 1 0 1 0 8 0 amappl8 136 47 0 45 1 0 1 1 0 8 0 amappl7 128 96 0 84 1 0 1 1 0 8 0 amappl6 120 122 0 117 1 0 1 1 0 8 0 amappl5 112 100 0 89 1 0 1 1 0 8 0 amappl4 104 922 0 891 1 0 1 1 0 8 0 amappl3 96 1488 0 1436 3 1 2 2 0 8 0 amappl2 88 592 0 537 2 0 2 2 0 8 0 amappl1 80 11282 0 10766 16 4 12 12 0 8 1 amappl 88 2738 0 2658 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 24 861 0 835 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 861 0 835 1 0 1 1 0 8 0 vmmpekpl 168 8363 0 8348 1 0 1 1 0 8 0 vmmpepl 168 46655 0 45342 66 6 60 60 0 357 2 vmsppl 448 860 0 835 5 1 4 4 0 8 1 rwobjpl 56 19174 0 15871 48 1 47 47 0 8 0 pdppl 4096 1729 0 1670 87 24 63 67 0 8 4 pvpl 32 6806 0 0 55 0 55 55 0 265 0 pmappl 248 860 0 835 2 0 2 2 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 408 0 29 11 0 11 11 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x1e: addq $0x8,%rsp ddb{0}> trace x86_ipi_db(ffffffff82d7eff0) 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 __mp_lock(ffffffff82d95838) at __mp_lock+0x122 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82d95838) at __mp_lock+0x122 sys/kern/kern_lock.c:147 intr_handler(ffff80002a2227b0,ffff80000067b300) at intr_handler+0x62 sys/arch/amd64/amd64/intr.c:539 Xintr_ioapic_edge26_untramp() at Xintr_ioapic_edge26_untramp+0x18f __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0xf sys/dev/kcov.c:154 syscall(ffff80002a222990) at syscall+0x51a mi_syscall sys/sys/syscall_mi.h:183 [inline] syscall(ffff80002a222990) at syscall+0x51a sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x78b9923ccdf0, count: -9 ddb{0}> machine ddbcpu 1 Stopped at ktrops+0x4e: movq 0x8(%rbx),%r14 ddb{1}> trace ktrops(ffff80002a18b2c8,deaf4152deaf4152,0,80000100,fffffd806bf03cf8,fffffd807f7d76e8) at ktrops+0x4e ktrcanset sys/kern/kern_ktrace.c:718 [inline] ktrops(ffff80002a18b2c8,deaf4152deaf4152,0,80000100,fffffd806bf03cf8,fffffd807f7d76e8) at ktrops+0x4e sys/kern/kern_ktrace.c:561 doktrace(fffffd806bf03cf8,4,100,ffffffff,ffff80002a18b2c8) at doktrace+0x428 ktrsetchildren sys/kern/kern_ktrace.c:586 [inline] doktrace(fffffd806bf03cf8,4,100,ffffffff,ffff80002a18b2c8) at doktrace+0x428 sys/kern/kern_ktrace.c:493 sys_ktrace(ffff80002a18b2c8,ffff80002a21c070,ffff80002a21bfc0) at sys_ktrace+0xd6 sys/kern/kern_ktrace.c:549 syscall(ffff80002a21c070) at syscall+0x533 mi_syscall sys/sys/syscall_mi.h:183 [inline] syscall(ffff80002a21c070) at syscall+0x533 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x78b9923ccdf0, count: -5 ddb{1}>