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(ffff80002a247810,dead4110dead4110,0,80001024,fffffd807c80d020,fffffd807f7d76e8) at ktrops+0x4e ktrcanset sys/kern/kern_ktrace.c:718 [inline] ktrops(ffff80002a247810,dead4110dead4110,0,80001024,fffffd807c80d020,fffffd807f7d76e8) at ktrops+0x4e sys/kern/kern_ktrace.c:561 doktrace(fffffd807c80d020,4,1024,0,ffff80002a247810) at doktrace+0x524 ktrsetchildren sys/kern/kern_ktrace.c:586 [inline] doktrace(fffffd807c80d020,4,1024,0,ffff80002a247810) at doktrace+0x524 sys/kern/kern_ktrace.c:508 sys_ktrace(ffff80002a247810,ffff80002a308460,ffff80002a3083b0) at sys_ktrace+0xd6 sys/kern/kern_ktrace.c:549 syscall(ffff80002a308460) at syscall+0x533 mi_syscall sys/sys/syscall_mi.h:183 [inline] syscall(ffff80002a308460) at syscall+0x533 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7cb6cd0fa70, count: -5 ddb{1}> show registers rdi 0xffff80002a247810 rsi 0xdead4110dead4110 rbp 0xffff80002a308180 rbx 0xdead4110dead4110 rdx 0 rcx 0xffff80002a247810 rax 0xffff800029cebff0 r8 0xfffffd807c80d020 r9 0xfffffd807f7d76e8 r10 0xf1d88cece455e0bf r11 0x4e25ca857737a38b r12 0xdead4110dead4110 r13 0xfffffd807f7d76e8 r14 0xffff80002a247810 r15 0x80001024 __kernel_virt_to_phys+0x1024 rip 0xffffffff823513de ktrops+0x4e cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80002a308100 ss 0x10 ktrops+0x4e: movq 0x8(%rbx),%r14 ddb{1}> show proc PROC (syz-executor.1) tid=259624 pid=71542 tcnt=2 stat=onproc flags process=0 proc=4000000 runpri=17, usrpri=86, slppri=17, nice=20 wchan=0x0, wmesg=, ps_single=0x0 forw=0xffffffffffffffff, list=0xffff80002a1c3d50,0xffff80002a2472d0 process=0xffff8000ffff5650 user=0xffff80002a303000, vmspace=0xfffffd807be58ab0 estcpu=36, cpticks=0, pctcpu=0.0, user=0, sys=0, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 87558 73817 66768 0 2 0 syz-executor.3 87558 215059 66768 0 2 0x4000000 syz-executor.3 55914 311842 55250 0 2 0 syz-executor.6 4526 498494 7273 0 2 0 syz-executor.4 71542 426527 21832 0 2 0 syz-executor.1 *71542 259624 21832 0 7 0x4000000 syz-executor.1 84266 396809 47890 0 2 0x2 syz-executor.7 51370 428840 47890 0 3 0x2 biowait syz-executor.5 66768 334687 47890 0 3 0x82 nanoslp syz-executor.3 55250 372567 47890 0 3 0x82 nanoslp syz-executor.6 71869 487038 47890 0 3 0x2 biowait syz-executor.0 7273 320587 47890 0 3 0x82 nanoslp syz-executor.4 21832 56196 47890 0 3 0x82 nanoslp syz-executor.1 78527 471219 47890 0 2 0x2 syz-executor.2 47890 521091 7433 0 3 0x2000082 thrsleep syz-execprog 47890 172348 7433 0 3 0x6000082 nanoslp syz-execprog 47890 469542 7433 0 3 0x6000082 wait syz-execprog 47890 302845 7433 0 3 0x6000082 wait syz-execprog 47890 361396 7433 0 3 0x6000082 wait syz-execprog 47890 248166 7433 0 3 0x6000082 wait syz-execprog 47890 171839 7433 0 3 0x6000082 wait syz-execprog 47890 133579 7433 0 3 0x6000082 thrsleep syz-execprog 47890 83842 7433 0 7 0x6000002 syz-execprog 47890 439021 7433 0 3 0x6000082 wait syz-execprog 47890 309093 7433 0 3 0x6000082 wait syz-execprog 47890 329721 7433 0 3 0x6000082 thrsleep syz-execprog 47890 167225 7433 0 3 0x6000082 wait syz-execprog 47890 502171 7433 0 2 0x6000002 syz-execprog 47890 4291 7433 0 3 0x6000082 thrsleep syz-execprog 7433 35738 62609 0 3 0x10008a sigsusp ksh 62609 334261 68586 0 3 0x9a kqread sshd 78056 280848 1 0 3 0x100083 ttyin getty 68586 161703 1 0 3 0x88 kqread sshd 60867 444453 15768 74 3 0x1100092 bpf pflogd 15768 389032 1 0 3 0x80 netio pflogd 19576 108264 61173 73 3 0x1100090 kqread syslogd 61173 204808 1 0 3 0x100082 netio syslogd 48244 398094 1 0 3 0x100080 kqread resolvd 6643 124281 61513 77 3 0x100092 kqread dhcpleased 63534 136389 61513 77 3 0x100092 kqread dhcpleased 61513 210836 1 0 3 0x80 kqread dhcpleased 23964 92050 0 0 3 0x14200 bored smr 14233 483760 0 0 2 0x14200 zerothread 72914 355691 0 0 3 0x14200 aiodoned aiodoned 88794 645 0 0 3 0x14200 syncer update 13905 225596 0 0 3 0x14200 cleaner cleaner 21181 473632 0 0 3 0x14200 reaper reaper 95642 323600 0 0 3 0x14200 pgdaemon pagedaemon 42507 501266 0 0 3 0x14200 bored viomb 2593 491061 0 0 3 0x40014200 acpi0 acpi0 52244 317624 0 0 3 0x40014200 idle1 87356 311194 0 0 3 0x14200 bored softnet3 966 175391 0 0 3 0x14200 bored softnet2 72666 1689 0 0 3 0x14200 bored softnet1 86913 366350 0 0 3 0x14200 bored softnet0 30101 273910 0 0 3 0x14200 bored systqmp 94166 71562 0 0 3 0x14200 bored systq 45880 107228 0 0 3 0x14200 tmoslp softclockmp 37795 24476 0 0 3 0x40014200 tmoslp softclock 20825 48662 0 0 3 0x40014200 idle0 1 286258 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 71542 (syz-executor.1) thread 0xffff80002a247810 (259624) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff82d86a40) #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+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+0x533 mi_syscall sys/sys/syscall_mi.h:183 [inline] #14 syscall+0x533 sys/arch/amd64/amd64/trap.c:577 #15 Xsyscall+0x128 Process 51370 (syz-executor.5) thread 0xffff80002a247018 (428840) exclusive rrwlock inode r = 0 (0xfffffd807c9011a8) #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_mkdir+0xfb sys/ufs/ufs/ufs_vnops.c:1127 #8 VOP_MKDIR+0xc3 sys/kern/vfs_vops.c:388 #9 domkdirat+0x125 sys/kern/vfs_syscalls.c:3069 #10 syscall+0x533 mi_syscall sys/sys/syscall_mi.h:183 [inline] #10 syscall+0x533 sys/arch/amd64/amd64/trap.c:577 #11 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd807c874b48) #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:3054 #8 syscall+0x533 mi_syscall sys/sys/syscall_mi.h:183 [inline] #8 syscall+0x533 sys/arch/amd64/amd64/trap.c:577 #9 Xsyscall+0x128 Process 71869 (syz-executor.0) thread 0xffff80002a1ce2a8 (487038) exclusive rrwlock inode r = 0 (0xfffffd807c9012b8) #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_mkdir+0xfb sys/ufs/ufs/ufs_vnops.c:1127 #8 VOP_MKDIR+0xc3 sys/kern/vfs_vops.c:388 #9 domkdirat+0x125 sys/kern/vfs_syscalls.c:3069 #10 syscall+0x533 mi_syscall sys/sys/syscall_mi.h:183 [inline] #10 syscall+0x533 sys/arch/amd64/amd64/trap.c:577 #11 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd807c8745f8) #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:3054 #8 syscall+0x533 mi_syscall sys/sys/syscall_mi.h:183 [inline] #8 syscall+0x533 sys/arch/amd64/amd64/trap.c:577 #9 Xsyscall+0x128 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10179 6474K 6474K 166960K 11260 0 pcb 15 10K 10K 166960K 15 0 rtable 234 6K 6K 166960K 384 0 pf 32 9K 10K 166960K 46 0 ifaddr 45 15K 15K 166960K 51 0 ifgroup 55 2K 2K 166960K 60 0 counters 64 36K 36K 166960K 66 0 ioctlops 0 0K 4K 166960K 1484 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1189 74K 74K 166960K 1205 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 14 49K 85K 166960K 241 0 proc 67 91K 140K 166960K 554 0 subproc 0 0K 0K 166960K 13 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 in_multi 99 7K 7K 166960K 110 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 430 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 238 74K 75K 166960K 5257 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 28 2K 2K 166960K 31 0 temp 1 6756K 6821K 166960K 5137 0 kqueue 12 18K 18K 166960K 34 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 38 0 35 1 0 1 1 0 8 0 rtentry 112 122 0 12 4 0 4 4 0 8 0 unpcb 144 223 0 208 1 0 1 1 0 8 0 syncache 336 8 0 8 2 1 1 1 0 8 1 tcpqe 32 468 0 468 2 2 0 1 0 8 0 tcpcb 808 12 0 9 1 0 1 1 0 8 0 arp 120 20 0 2 1 0 1 1 0 8 0 inpcb 392 73 0 67 2 0 2 2 0 8 1 nd6 136 27 0 3 2 1 1 1 0 8 0 kcovpl 48 1 0 1 1 1 0 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 24 0 4 1 0 1 1 0 8 0 pfstkey 128 24 0 4 1 0 1 1 0 8 0 pfstate 376 24 0 4 2 0 2 2 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 256 501 0 48 32 3 29 29 0 8 0 art_table 32 502 0 48 5 1 4 4 0 8 0 art_node 16 121 0 21 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1693 0 207 93 0 93 93 0 8 0 ffsino 272 1693 0 207 100 0 100 100 0 8 0 nchpl 144 2145 0 447 64 0 64 64 0 8 0 uvmvnodes 80 1720 0 0 36 0 36 36 0 8 0 vnodes 216 1720 0 0 96 0 96 96 0 8 0 namei 1024 8449 0 8447 3 2 1 2 0 8 0 percpumem 16 47 0 1 1 0 1 1 0 8 0 kstatmem 264 26 0 2 2 0 2 2 0 8 0 scxspl 216 8683 0 8681 10 8 2 8 1 8 1 plimitpl 152 50 0 34 1 0 1 1 0 8 0 sigapl 424 594 0 549 10 3 7 7 0 8 1 futexpl 64 579 0 579 2 1 1 1 0 8 1 knotepl 120 118 0 0 4 0 4 4 0 8 0 kqueuepl 216 30 0 22 1 0 1 1 0 8 0 pipepl 320 189 0 161 5 2 3 3 0 8 0 fdescpl 496 576 0 549 6 1 5 5 0 8 0 filepl 152 2677 0 2542 7 1 6 6 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 33 0 16 1 0 1 1 0 8 0 pgrppl 48 33 0 16 1 0 1 1 0 8 0 ucredpl 104 98 0 86 1 0 1 1 0 8 0 zombiepl 144 549 0 549 2 1 1 1 0 8 1 processpl 1136 594 0 549 5 1 4 4 0 8 0 procpl 680 708 0 647 9 3 6 6 0 8 0 sockpl 584 334 0 310 3 0 3 3 0 8 1 mcl8k 8192 1 0 0 1 0 1 1 0 8 0 mcl4k 4096 6 0 0 1 0 1 1 0 8 0 mcl2k 2048 365 0 0 44 0 44 44 0 8 0 mtagpl 96 2 0 0 1 0 1 1 0 8 0 mbufpl 256 395 0 0 24 0 24 24 0 8 0 bufpl 280 5045 0 138 351 0 351 351 0 8 0 anonpl 24 365837 0 361478 65 17 48 55 0 186 16 amapchunkpl 152 19267 0 18718 42 16 26 27 0 158 1 amappl16 200 11006 0 10927 10 4 6 6 0 8 0 amappl15 192 38 0 38 4 3 1 1 0 8 1 amappl14 184 259 0 245 3 1 2 2 0 8 0 amappl13 176 29 0 29 2 2 0 1 0 8 0 amappl12 168 1310 0 1282 4 2 2 2 0 8 0 amappl11 160 61 0 47 1 0 1 1 0 8 0 amappl10 152 44 0 34 3 2 1 1 0 8 0 amappl9 144 481 0 481 2 1 1 1 0 8 1 amappl8 136 259 0 228 3 1 2 2 0 8 0 amappl7 128 268 0 249 3 1 2 2 0 8 0 amappl6 120 312 0 306 1 0 1 1 0 8 0 amappl5 112 172 0 161 1 0 1 1 0 8 0 amappl4 104 634 0 607 3 1 2 2 0 8 1 amappl3 96 3717 0 3645 6 3 3 3 0 8 0 amappl2 88 1204 0 1129 4 1 3 3 0 8 0 amappl1 80 15054 0 14506 32 11 21 23 0 8 7 amappl 88 4561 0 4404 7 2 5 5 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 24 576 0 549 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 576 0 549 1 0 1 1 0 8 0 vmmpekpl 168 14690 0 14663 2 0 2 2 0 8 0 vmmpepl 168 72269 0 70592 123 15 108 116 0 357 28 vmsppl 448 575 0 549 7 3 4 4 0 8 0 rwobjpl 56 33772 0 31018 55 10 45 46 0 8 1 pdppl 4096 1159 0 1098 121 42 79 79 0 8 18 pvpl 32 42254 0 0 342 1 341 341 0 265 0 pmappl 248 575 0 549 3 0 3 3 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 448 0 56 12 0 12 12 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x1e: addq $0x8,%rsp ddb{0}> trace x86_ipi_db(ffffffff82d40ff0) 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(ffffffff82d86838) at __mp_lock+0x129 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82d86838) at __mp_lock+0x129 sys/kern/kern_lock.c:147 intr_handler(ffff80002a282c20,ffff80000006bc00) at intr_handler+0x62 sys/arch/amd64/amd64/intr.c:539 Xintr_ioapic_edge23_untramp() at Xintr_ioapic_edge23_untramp+0x18f __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x41 sys/dev/kcov.c:164 syscall(ffff80002a282e00) at syscall+0x8b1 mi_syscall_return sys/sys/syscall_mi.h:211 [inline] syscall(ffff80002a282e00) at syscall+0x8b1 sys/arch/amd64/amd64/trap.c:598 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x22fb21550, count: -9 ddb{0}> machine ddbcpu 1 Stopped at ktrops+0x4e: movq 0x8(%rbx),%r14 ddb{1}> trace ktrops(ffff80002a247810,dead4110dead4110,0,80001024,fffffd807c80d020,fffffd807f7d76e8) at ktrops+0x4e ktrcanset sys/kern/kern_ktrace.c:718 [inline] ktrops(ffff80002a247810,dead4110dead4110,0,80001024,fffffd807c80d020,fffffd807f7d76e8) at ktrops+0x4e sys/kern/kern_ktrace.c:561 doktrace(fffffd807c80d020,4,1024,0,ffff80002a247810) at doktrace+0x524 ktrsetchildren sys/kern/kern_ktrace.c:586 [inline] doktrace(fffffd807c80d020,4,1024,0,ffff80002a247810) at doktrace+0x524 sys/kern/kern_ktrace.c:508 sys_ktrace(ffff80002a247810,ffff80002a308460,ffff80002a3083b0) at sys_ktrace+0xd6 sys/kern/kern_ktrace.c:549 syscall(ffff80002a308460) at syscall+0x533 mi_syscall sys/sys/syscall_mi.h:183 [inline] syscall(ffff80002a308460) at syscall+0x533 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7cb6cd0fa70, count: -5