*cpu1: uvm_fault(0xfffff60072157d78, 0x98, 0, 1) -> e ddb{0}> show kasan No such command ddb{0}> trace savectx() at savectx+0xae end of kernel end trace frame: 0x70af60b38400, count: -1 ddb{0}> show registers rdi 0 rsi 0 rbp 0xffff80003339d170 rbx 0 rdx 0 rcx 0xffff800037fb9250 rax 0x32 r8 0xffff80003339d0a0 r9 0x80713 acpi_pdirpa+0x6c584 r10 0x7ae8b1687accad80 r11 0x206091c39b73fb88 r12 0 r13 0 r14 0xffff800037fb9250 r15 0 rip 0xffffffff821793ee savectx+0xae cs 0x8 rflags 0x46 rsp 0xffff80003339d0f0 ss 0x10 savectx+0xae: movl $0,%gs:0x688 ddb{0}> show proc PROC (sh) tid=289559 pid=51288 tcnt=1 stat=onproc flags process=100002 proc=0 runpri=63, usrpri=86, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff800037fb8a88,0xffffffff83b2af80 process=0xffff80002a37d828 user=0xffff800033398000, vmspace=0xfffff600721575d8 estcpu=36, cpticks=2, pctcpu=0.0, user=0, sys=2, intr=0 ddb{0}> ps PID TID PPID UID S PRLAGS PFLAGS WAIT COMMAND *51288 289559 83286 0 7 0x100002 0 sh 38316 152710 15231 0 2 0 0 syz-executor 66427 23342 4292 0 2 0 0 syz-executor 66427 324160 4292 0 7 0 0x4000000 syz-executor 50635 5863 73686 0 2 0 0 syz-executor 50635 145588 73686 0 3 0 0x4000080 fsleep syz-executor 24264 81887 95397 0 2 0x1 0 syz-executor 24264 256541 95397 0 3 0x1 0x4000080 fsleep syz-executor 28170 111322 37000 0 2 0 0 syz-executor 28170 42879 37000 0 3 0 0x4000080 piperd syz-executor 28170 424819 37000 0 2 0 0x4000000 syz-executor 25074 13508 67570 0 2 0 0 syz-executor 25074 438314 67570 0 3 0 0x4000080 rest syz-executor 25074 365777 67570 0 3 0 0x4000080 fsleep syz-executor 83286 301560 22756 0 3 0x2 0x80 wait syz-executor 67570 167082 22756 0 3 0x2 0x80 nanoslp syz-executor 95397 457316 22756 0 3 0x2 0x80 nanoslp syz-executor 15231 142187 22756 0 3 0x2 0x80 nanoslp syz-executor 4292 375527 22756 0 3 0x2 0x80 nanoslp syz-executor 73686 445954 22756 0 3 0x2 0x80 nanoslp syz-executor 37000 161762 22756 0 3 0x2 0x80 nanoslp syz-executor 695 356590 22756 0 3 0x2 0x80 nanoslp syz-executor 22756 282184 33964 0 3 0x2 0x80 kqread syz-executor 33964 307244 53497 0 3 0x100002 0x88 sigsusp ksh 53497 504390 20535 0 3 0x10 0x88 kqread sshd-session 20535 334480 18507 0 3 0x12 0x80 kqread sshd-session 59645 33586 1 0 3 0x100003 0x80 ttyin getty 18507 460148 1 0 3 0 0x88 kqread sshd 20541 157600 73610 74 3 0x1100012 0x80 bpf pflogd 73610 149771 1 0 3 0 0x80 sbwait pflogd 62753 169315 64832 73 3 0x1100010 0x80 kqread syslogd 64832 107019 1 0 3 0x100002 0x80 sbwait syslogd 20336 230347 1 0 3 0x100000 0x80 kqread resolvd 22832 350514 44595 77 3 0x100012 0x80 kqread dhcpleased 15718 304831 44595 77 3 0x100012 0x80 kqread dhcpleased 44595 281381 1 0 3 0 0x80 kqread dhcpleased 48015 120532 0 0 3 0x14000 0x200 pause smr 94375 421251 0 0 2 0x14000 0x200 zerothread 91230 434537 0 0 3 0x14000 0x200 aiodoned aiodoned 38920 280461 0 0 3 0x14000 0x200 syncer update 1488 419079 0 0 3 0x14000 0x200 cleaner cleaner 45795 466644 0 0 3 0x14000 0x200 reaper reaper 49254 210542 0 0 3 0x14000 0x200 pgdaemon pagedaemon 8261 469787 0 0 3 0x14000 0x200 bored viomb 80173 18618 0 0 3 0x14000 0x40000200 acpi0 acpi0 21500 17820 0 0 3 0x14000 0x40000200 idle1 21464 423889 0 0 3 0x14000 0x200 bored softnet1 54581 306761 0 0 3 0x14000 0x200 bored softnet0 91339 353153 0 0 3 0x14000 0x200 smrbar systqmp 93943 223632 0 0 3 0x14000 0x200 bored systq 44261 452519 0 0 3 0x14000 0x200 tmoslp softclockmp 3341 275855 0 0 3 0x14000 0x40000200 tmoslp softclock 77202 385316 0 0 3 0x14000 0x40000200 idle0 1 210703 0 0 3 0x2 0x80 wait init 0 0 -1 0 3 0x10000 0x200 scheduler swapper ddb{0}> show all locks CPU 0: exclusive mutex &map->flags_lock r = 0 (0xfffff60072157750) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 mtx_enter+0x4b4 sys/kern/kern_lock.c:487 #2 vm_map_lock_ln+0x13f sys/uvm/uvm_map.c:5171 #3 uvm_mmaplock+0x75 sys/uvm/uvm_mmap.c:949 #4 sys_mmap+0xa80 sys/uvm/uvm_mmap.c:426 #5 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] #5 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:783 #6 Xsyscall+0x128 Process 51288 (sh) thread 0xffff800037fb9250 (289559) exclusive rwlock vmmaplk r = 0 (0xfffff600721576d8) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x419 sys/kern/kern_rwlock.c:320 #2 vm_map_lock_ln+0x12e sys/uvm/uvm_map.c:5170 #3 uvm_mmaplock+0x75 sys/uvm/uvm_mmap.c:949 #4 sys_mmap+0xa80 sys/uvm/uvm_mmap.c:426 #5 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] #5 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:783 #6 Xsyscall+0x128 exclusive mutex &map->flags_lock r = 0 (0xfffff60072157750) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 mtx_enter+0x4b4 sys/kern/kern_lock.c:487 #2 vm_map_lock_ln+0x13f sys/uvm/uvm_map.c:5171 #3 uvm_mmaplock+0x75 sys/uvm/uvm_mmap.c:949 #4 sys_mmap+0xa80 sys/uvm/uvm_mmap.c:426 #5 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] #5 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:783 #6 Xsyscall+0x128 Process 66427 (syz-executor) thread 0xffff800037fb9780 (324160) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff83ad3e40) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 syscall+0xaf4 mi_syscall sys/sys/syscall_mi.h:175 [inline] #1 syscall+0xaf4 sys/arch/amd64/amd64/trap.c:783 #2 Xsyscall+0x128 Process 91339 (systqmp) thread 0xffff800045ffe298 (353153) shared rwlock systqmp r = 0 (0xffffffff838e3108) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 taskq_thread+0x12a sys/kern/kern_task.c:442 #2 proc_trampoline+0x10 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 11058 12085K 12411K 166960K 12233 0 pcb 17 12K 12K 166960K 23 0 rtable 219 6K 7K 166960K 399 0 pf 32 17K 21K 166960K 56 0 ifaddr 39 6K 7K 166960K 50 0 ifgroup 51 2K 2K 166960K 61 0 sysctl 2 1K 9K 166960K 6 0 counters 68 36K 37K 166960K 74 0 ioctlops 0 0K 4K 166960K 1496 0 iov 1 1K 12K 166960K 3 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1298 82K 82K 166960K 1417 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 3 0 VM map 2 1K 1K 166960K 2 0 sem 4 0K 0K 166960K 4 0 dirhash 12 2K 2K 166960K 12 0 ACPI 1734 201K 291K 166960K 11964 0 file desc 18 65K 93K 166960K 202 0 proc 71 115K 180K 166960K 587 0 subproc 72 4K 4K 166960K 81 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 9 0 in_multi 88 5K 6K 166960K 110 0 ether_multi 1 0K 0K 166960K 1 0 mrt 0 0K 0K 166960K 3 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 67 307K 307K 166960K 67 0 exec 0 0K 1K 166960K 405 0 fusefs mount 1 32K 32K 166960K 1 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 222 175K 190K 166960K 3608 0 UVM aobj 4 2K 2K 166960K 5 0 pinsyscall 43 86K 102K 166960K 1411 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 2 0 NDP 13 0K 2K 166960K 32 0 temp 34 9114K 9178K 166960K 4222 0 kqueue 14 22K 26K 166960K 36 0 SYN cache 2 16K 16K 166960K 2 0 ddb{0}> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle plcache 128 28 0 0 1 0 1 1 0 8 0 rtpcb 120 40 0 37 1 0 1 1 0 8 0 rtentry 176 121 0 23 6 0 6 6 0 8 0 unpcb 144 61 0 44 1 0 1 1 0 8 0 syncache 336 5 0 5 1 0 1 1 0 8 1 tcpcb 736 19 0 15 1 0 1 1 0 8 0 arp 136 20 0 4 1 0 1 1 0 8 0 inpcb 328 98 0 89 2 0 2 2 0 8 0 nd6 152 26 0 6 1 0 1 1 0 8 0 kcovpl 48 9 0 1 1 0 1 1 0 8 0 ppxss 1192 1 0 1 1 0 1 1 0 8 1 pffrag 232 2 0 0 1 0 1 1 0 482 0 pffrnode 88 2 0 0 1 0 1 1 0 8 0 pffrent 40 3 0 1 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 21 0 0 1 0 1 1 0 8 0 pfstkey 128 21 0 0 1 0 1 1 0 8 0 pfstate 448 21 0 0 3 0 3 3 0 8 0 pfrule 1360 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 256 495 0 88 29 0 29 29 0 8 2 art_table 40 496 0 88 5 0 5 5 0 8 0 art_node 32 121 0 31 1 0 1 1 0 8 0 semapl 72 2 0 0 1 0 1 1 0 8 0 shmpl 112 2 0 1 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1655 0 184 93 0 93 93 0 8 0 ffsino 296 1655 0 184 114 0 114 114 0 8 0 nchpl 144 1917 0 211 64 0 64 64 0 8 0 vnodes 216 1785 0 0 100 0 100 100 0 8 0 namei 1024 5994 0 5994 1 0 1 1 0 8 1 percpumem 16 53 0 3 1 0 1 1 0 8 0 kstatmem 264 31 0 6 2 0 2 2 0 8 0 scxspl 216 6550 0 6550 4 3 1 3 1 8 1 plimitpl 152 38 0 19 1 0 1 1 0 8 0 sigapl 424 526 0 478 8 1 7 7 0 8 1 knotepl 120 289 0 0 9 0 9 9 0 8 0 kqueuepl 224 39 0 29 1 0 1 1 0 8 0 pipepl 344 137 0 108 3 0 3 3 0 8 0 fdescpl 528 510 0 478 3 0 3 3 0 8 0 filepl 160 1879 0 1655 10 0 10 10 0 8 0 lockfpl 104 45 0 43 1 0 1 1 0 8 0 lockfspl 48 23 0 21 1 0 1 1 0 8 0 sessionpl 144 29 0 19 1 0 1 1 0 8 0 pgrppl 48 38 0 20 1 0 1 1 0 8 0 ucredpl 104 169 0 155 1 0 1 1 0 8 0 zombiepl 144 479 0 478 1 0 1 1 0 8 0 processpl 1232 526 0 478 5 0 5 5 0 8 1 procpl 664 622 0 567 7 1 6 6 0 8 0 sockpl 752 203 0 174 4 0 4 4 0 8 0 mcl64k 65536 3 0 0 1 0 1 1 0 8 0 mcl16k 16384 1 0 0 1 0 1 1 0 8 0 mcl8k 8192 3 0 0 1 0 1 1 0 8 0 mcl4k 4096 127 0 0 16 0 16 16 0 8 0 mcl2k 2048 38 0 0 5 0 5 5 0 8 0 mextrefs 64 39 0 0 1 0 1 1 0 8 0 mtagpl 96 1 0 0 1 0 1 1 0 8 0 mbufpl 256 204 0 0 13 0 13 13 0 8 0 bufpl 272 2348 0 105 150 0 150 150 0 8 0 anonpl 32 3842 0 0 31 0 31 31 0 247 0 amapchunkpl 152 10245 0 9801 30 0 30 30 0 158 12 amappl16 200 1900 0 1880 5 2 3 5 0 8 1 amappl15 192 5 0 5 1 1 0 1 0 8 0 amappl14 184 449 0 447 1 0 1 1 0 8 0 amappl13 176 142 0 130 1 0 1 1 0 8 0 amappl12 168 794 0 764 2 0 2 2 0 8 0 amappl11 160 5 0 4 1 0 1 1 0 8 0 amappl10 152 67 0 53 1 0 1 1 0 8 0 amappl9 144 281 0 281 1 1 0 1 0 8 0 amappl8 136 133 0 131 1 0 1 1 0 8 0 amappl7 128 152 0 139 1 0 1 1 0 8 0 amappl6 120 167 0 165 1 0 1 1 0 8 0 amappl5 112 98 0 88 1 0 1 1 0 8 0 amappl4 104 300 0 280 1 0 1 1 0 8 0 amappl3 96 1857 0 1765 3 0 3 3 0 8 0 amappl2 88 631 0 555 2 0 2 2 0 8 0 amappl1 80 10900 0 10291 14 0 14 14 0 8 1 amappl 88 2840 0 2691 5 0 5 5 0 92 0 uvmvnodes 80 101 0 0 3 0 3 3 0 8 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 4 0 1 1 0 1 1 0 8 0 uaddrrnd 24 510 0 478 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 510 0 478 1 0 1 1 0 8 0 vmmpekpl 168 6197 0 6151 3 0 3 3 0 8 0 vmmpepl 168 42112 0 40214 87 0 87 87 0 357 3 vmsppl 488 509 0 478 5 0 5 5 0 8 0 rwobjpl 80 15529 0 14515 23 0 23 23 0 8 0 pdppl 4096 1027 0 956 101 28 73 85 0 8 2 pvpl 32 10609 0 0 86 0 86 86 0 265 0 pmappl 256 509 0 478 3 0 3 3 0 8 0 extentpl 40 46 0 28 1 0 1 1 0 8 0 phpool 112 428 0 31 12 0 12 12 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace savectx() at savectx+0xae end of kernel end trace frame: 0x70af60b38400, count: -1 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffff80002999dff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:394 x86_ipi_handler() at x86_ipi_handler+0xd9 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27 x86_bus_space_io_read_4(b008,0) at x86_bus_space_io_read_4+0x37 sys/arch/amd64/amd64/bus_space.c:682 acpitimer_delay(1) at acpitimer_delay+0xb7 acpitimer_read sys/dev/acpi/acpitimer.c:146 [inline] acpitimer_delay(1) at acpitimer_delay+0xb7 sys/dev/acpi/acpitimer.c:120 comcnputc(800,65) at comcnputc+0x29b sys/dev/ic/com.c:1274 cnputc(65) at cnputc+0x67 sys/dev/cons.c:218 db_putchar(65) at db_putchar+0x36d sys/ddb/db_output.c:155 kprintf() at kprintf+0x223 sys/kern/subr_prf.c:723 db_printf(ffffffff8354d8bf) at db_printf+0x9b sys/kern/subr_prf.c:-1 db_ktrap(6,0,ffff8000383c4d30) at db_ktrap+0xe3 db_printtrap sys/arch/amd64/amd64/db_interface.c:99 [inline] db_ktrap(6,0,ffff8000383c4d30) at db_ktrap+0xe3 sys/arch/amd64/amd64/db_interface.c:128 kerntrap(ffff8000383c4d30) at kerntrap+0x243 sys/arch/amd64/amd64/trap.c:519 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b dovutimens(ffff800037fb9780,fffff60071e65ce8,ffff8000383c4f10) at dovutimens+0x368 sys/kern/vfs_syscalls.c:2691 end trace frame: 0xffff8000383c4f80, count: 0 ddb{1}> trace x86_ipi_db(ffff80002999dff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:394 x86_ipi_handler() at x86_ipi_handler+0xd9 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27 x86_bus_space_io_read_4(b008,0) at x86_bus_space_io_read_4+0x37 sys/arch/amd64/amd64/bus_space.c:682 acpitimer_delay(1) at acpitimer_delay+0xb7 acpitimer_read sys/dev/acpi/acpitimer.c:146 [inline] acpitimer_delay(1) at acpitimer_delay+0xb7 sys/dev/acpi/acpitimer.c:120 comcnputc(800,65) at comcnputc+0x29b sys/dev/ic/com.c:1274 cnputc(65) at cnputc+0x67 sys/dev/cons.c:218 db_putchar(65) at db_putchar+0x36d sys/ddb/db_output.c:155 kprintf() at kprintf+0x223 sys/kern/subr_prf.c:723 db_printf(ffffffff8354d8bf) at db_printf+0x9b sys/kern/subr_prf.c:-1 db_ktrap(6,0,ffff8000383c4d30) at db_ktrap+0xe3 db_printtrap sys/arch/amd64/amd64/db_interface.c:99 [inline] db_ktrap(6,0,ffff8000383c4d30) at db_ktrap+0xe3 sys/arch/amd64/amd64/db_interface.c:128 kerntrap(ffff8000383c4d30) at kerntrap+0x243 sys/arch/amd64/amd64/trap.c:519 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b dovutimens(ffff800037fb9780,fffff60071e65ce8,ffff8000383c4f10) at dovutimens+0x368 sys/kern/vfs_syscalls.c:2691 sys_futimes(ffff800037fb9780,ffff8000383c5060,ffff8000383c4fb0) at sys_futimes+0x208 sys/kern/vfs_syscalls.c:2733 syscall(ffff8000383c5060) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff8000383c5060) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x30b915781c0, count: -17