Cc8̰ .6ȵ:S@%9p9ō\!dv:HMƊ:\,./file1kernel: double fault trap, code=0 Stopped at restore_saved+0x32: xorq 0x30(%rsp),%r11 ddb{0}> ddb{0}> set $lines = 0 ddb{0}> set $maxwidth = 0 ddb{0}> show panic the kernel did not panic ddb{0}> trace end trace frame: 0x0, count: -1 ddb{0}> show registers rdi 0xffff800030341750 rsi 0xffff80002a1487b8 rbp 0 rbx 0 rdx 0 rcx 0xfffffd80678d9010 rax 0x7 r8 0 r9 0 r10 0x14af6064948875ef r11 0x15d5657633484263 r12 0xffff80002a1487b8 r13 0xffff80003740c000 r14 0 r15 0xffff800030341750 rip 0xffffffff819c61dc restore_saved+0x32 cs 0x8 rflags 0x10046 __ALIGN_SIZE+0xf046 rsp 0 ss 0x10 restore_saved+0x32: xorq 0x30(%rsp),%r11 ddb{0}> show proc PROC (syz-executor.6) tid=136628 pid=73770 tcnt=4 stat=onproc flags process=8000000 proc=4000080 runpri=40, usrpri=86, slppri=40, nice=20 wchan=0x0, wmesg=, ps_single=0x0 forw=0xffffffffffffffff, list=0xffff8000303419e0,0xffff8000ffff7740 process=0xffff80002a15ac68 user=0xffff80003740c000, vmspace=0xfffffd80695ae528 estcpu=36, cpticks=0, pctcpu=0.0, user=0, sys=0, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 24133 292678 98533 0 2 0x8000000 syz-executor.2 24133 470175 98533 0 3 0xc000080 fsleep syz-executor.2 73770 221263 30332 0 2 0x8000000 syz-executor.6 73770 338465 30332 0 3 0xc000080 lockf syz-executor.6 *73770 136628 30332 0 7 0xc000080 syz-executor.6 73770 185515 30332 0 2 0xc000000 syz-executor.6 66530 110228 99065 0 3 0x8000080 nanoslp syz-executor.4 66530 317378 99065 0 3 0xc000080 netcon2 syz-executor.4 66530 67249 99065 0 3 0xc000080 fsleep syz-executor.4 11620 99373 4526 0 3 0x8000080 nanoslp syz-executor.5 11620 365800 4526 0 3 0xc000080 netcon syz-executor.5 11620 395015 4526 0 3 0xc000080 fsleep syz-executor.5 91607 318571 1 0 3 0x18000082 nanoslp getty 82542 444061 12068 0 2 0x8000002 syz-executor.0 49288 97068 12068 0 3 0x8000082 nanoslp syz-executor.1 51469 5652 0 0 3 0x14200 acct acct 4526 209964 12068 0 3 0x8000082 nanoslp syz-executor.5 98533 34152 12068 0 3 0x8000082 nanoslp syz-executor.2 17123 132441 12068 0 3 0x8000082 nanoslp syz-executor.7 98873 329336 0 0 3 0x14280 nfsidl nfsio 40445 48835 0 0 3 0x14280 nfsidl nfsio 68173 357954 0 0 3 0x14280 nfsidl nfsio 67093 445389 0 0 3 0x14280 nfsidl nfsio 29379 354360 0 0 3 0x14280 nfsidl nfsio 75613 146182 0 0 3 0x14280 nfsidl nfsio 28123 290048 0 0 3 0x14280 nfsidl nfsio 66686 254602 0 0 3 0x14280 nfsidl nfsio 66863 330507 0 0 3 0x14280 nfsidl nfsio 47150 376583 0 0 3 0x14280 nfsidl nfsio 64825 174193 0 0 3 0x14280 nfsidl nfsio 73250 299445 0 0 3 0x14280 nfsidl nfsio 89298 521911 0 0 3 0x14280 nfsidl nfsio 9330 175867 0 0 3 0x14280 nfsidl nfsio 21890 38791 0 0 3 0x14280 nfsidl nfsio 47548 57994 0 0 3 0x14280 nfsidl nfsio 99859 174483 0 0 3 0x14280 nfsidl nfsio 89649 432155 0 0 3 0x14280 nfsidl nfsio 7591 54727 0 0 3 0x14280 nfsidl nfsio 52307 164465 0 0 3 0x14280 nfsidl nfsio 85740 275919 0 0 3 0x14200 bored sosplice 30332 315216 12068 0 3 0x8000082 nanoslp syz-executor.6 99065 273914 12068 0 3 0x8000082 nanoslp syz-executor.4 12068 104953 71424 0 3 0x1a000082 thrsleep syz-fuzzer 12068 330386 71424 0 3 0x1e000082 nanoslp syz-fuzzer 12068 20780 71424 0 3 0x1e000082 wait syz-fuzzer 12068 349518 71424 0 3 0x1e000082 kqread syz-fuzzer 12068 521365 71424 0 3 0x1e000082 thrsleep syz-fuzzer 12068 68922 71424 0 3 0x1e000082 wait syz-fuzzer 12068 241018 71424 0 3 0x1e000082 wait syz-fuzzer 12068 331344 71424 0 3 0x1e000082 thrsleep syz-fuzzer 12068 213136 71424 0 3 0x1e000082 thrsleep syz-fuzzer 12068 407431 71424 0 3 0x1e000082 wait syz-fuzzer 12068 176474 71424 0 3 0x1e000082 thrsleep syz-fuzzer 12068 291236 71424 0 3 0x1e000082 thrsleep syz-fuzzer 12068 412786 71424 0 3 0x1e000082 wait syz-fuzzer 12068 302177 71424 0 3 0x1e000082 wait syz-fuzzer 12068 516609 71424 0 3 0x1e000082 thrsleep syz-fuzzer 12068 127472 71424 0 3 0x1e000082 wait syz-fuzzer 12068 164378 71424 0 3 0x1e000082 thrsleep syz-fuzzer 71424 195637 347 0 3 0x810008a sigsusp ksh 347 441022 64981 0 3 0x1800009a kqread sshd 64981 194296 1 0 3 0x18000088 kqread sshd 55876 168779 82853 74 3 0x19100092 bpf pflogd 82853 343719 1 0 3 0x18000080 sbwait pflogd 34623 83298 43076 73 3 0x19100090 kqread syslogd 43076 458916 1 0 3 0x18100082 sbwait syslogd 63145 233371 1 0 3 0x18100080 kqread resolvd 57548 128024 60697 77 3 0x18100092 kqread dhcpleased 22348 362897 60697 77 3 0x18100092 kqread dhcpleased 60697 231314 1 0 3 0x18000080 kqread dhcpleased 66607 456165 0 0 3 0x14200 bored smr 77532 45986 0 0 2 0x14200 zerothread 12166 325401 0 0 3 0x14200 aiodoned aiodoned 75438 405150 0 0 3 0x14200 syncer update 93739 501636 0 0 3 0x14200 cleaner cleaner 6396 293571 0 0 7 0x14200 reaper 49864 267849 0 0 3 0x14200 pgdaemon pagedaemon 19602 3728 0 0 3 0x14200 bored viomb 14616 307674 0 0 3 0x40014200 acpi0 acpi0 44247 268260 0 0 3 0x40014200 idle1 16930 425319 0 0 3 0x14200 bored softnet3 68930 421147 0 0 3 0x14200 bored softnet2 61598 131261 0 0 3 0x14200 bored softnet1 5040 458849 0 0 3 0x14200 bored softnet0 2498 338122 0 0 3 0x14200 bored systqmp 4220 211181 0 0 3 0x14200 bored systq 24891 271989 0 0 3 0x14200 tmoslp softclockmp 86419 204664 0 0 3 0x40014200 tmoslp softclock 68293 502085 0 0 3 0x40014200 idle0 1 504972 0 0 3 0x8080082 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks CPU 0: exclusive sched_lock &sched_lock r = 0 (0xffffffff82da17a0) #0 witness_lock+0x446 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x446 sys/kern/subr_witness.c:1187 #1 sleep_finish+0x13f sys/kern/kern_synch.c:398 #2 rwsleep+0xb3 sys/kern/kern_synch.c:300 #3 lf_setlock+0x244 sys/kern/vfs_lockf.c:380 #4 lf_advlock+0x3a8 sys/kern/vfs_lockf.c:298 #5 VOP_ADVLOCK+0x75 sys/kern/vfs_vops.c:612 #6 doopenat+0x3b5 #7 syscall+0x854 mi_syscall sys/sys/syscall_mi.h:180 [inline] #7 syscall+0x854 sys/arch/amd64/amd64/trap.c:577 #8 Xsyscall+0x128 CPU 1: exclusive mutex &uvm.fpageqlock r = 0 (0xffffffff82dc6678) #0 witness_lock+0x446 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x446 sys/kern/subr_witness.c:1187 #1 mtx_enter_try+0x103 #2 mtx_enter+0x4e sys/kern/kern_lock.c:266 #3 uvm_pmr_freepages+0x123 sys/uvm/uvm_pmemrange.c:1289 #4 pmap_do_remove+0x678 sys/arch/amd64/amd64/pmap.c:1915 #5 uvm_unmap_kill_entry_withlock+0x1b1 sys/uvm/uvm_map.c:1897 #6 uvm_map_teardown+0x1c7 uvm_map_addr_RBT_LEFT sys/uvm/uvm_map.h:176 [inline] #6 uvm_map_teardown+0x1c7 sys/uvm/uvm_map.c:2534 #7 uvmspace_free+0xa6 sys/uvm/uvm_map.c:3461 #8 reaper+0x197 sys/kern/kern_exit.c:463 #9 proc_trampoline+0x10 Process 6396 (reaper) thread 0xffff80002a148f68 (293571) exclusive rwlock vmmaplk r = 0 (0xfffffd80766b27d8) #0 witness_lock+0x446 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x446 sys/kern/subr_witness.c:1187 #1 rw_enter+0x32a sys/kern/kern_rwlock.c:309 #2 vm_map_lock_ln+0xfa sys/uvm/uvm_map.c:5291 #3 uvm_map_teardown+0xb3 sys/uvm/uvm_map.c:2502 #4 uvmspace_free+0xa6 sys/uvm/uvm_map.c:3461 #5 reaper+0x197 sys/kern/kern_exit.c:463 #6 proc_trampoline+0x10 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10194 6506K 6896K 166960K 13146 0 pcb 15 14K 16K 166960K 326 0 rtable 169 9K 11K 166960K 934 0 pf 35 10K 11K 166960K 125 0 ifaddr 36 13K 16K 166960K 132 0 ifgroup 62 2K 3K 166960K 193 0 sysctl 3 0K 0K 166960K 3 0 counters 64 36K 37K 166960K 142 0 ioctlops 0 0K 4K 166960K 1589 0 iov 0 0K 18K 166960K 150 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1370 86K 87K 166960K 2804 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 49 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 168 0 dirhash 12 2K 2K 166960K 60 0 ACPI 1697 195K 286K 166960K 12548 0 file desc 13 45K 85K 166960K 2336 0 sigio 0 0K 0K 166960K 48 0 proc 73 91K 128K 166960K 1051 0 subproc 91 5K 6K 166960K 325 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 345 0 in_multi 56 4K 7K 166960K 288 0 ether_multi 1 0K 0K 166960K 15 0 mrt 1 0K 0K 166960K 9 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 103 466K 466K 166960K 103 0 exec 0 0K 1K 166960K 707 0 pfkey data 0 0K 0K 166960K 2 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 350 145K 155K 166960K 23437 0 UVM aobj 112 9K 9K 166960K 130 0 pinsyscall 37 74K 108K 166960K 3852 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 1 0K 1K 166960K 251 0 NDP 12 0K 2K 166960K 89 0 temp 71 6811K 7308K 166960K 46317 0 kqueue 12 18K 30K 166960K 303 0 SYN cache 2 16K 24K 166960K 3 0 ddb{0}> 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 120 279 0 276 2 1 1 2 0 8 0 rtentry 112 291 0 217 4 0 4 4 0 8 0 unpcb 144 2477 0 2461 18 16 2 6 0 8 1 syncache 336 16 0 16 6 6 0 1 0 8 0 tcpqe 32 165 0 165 4 4 0 1 0 8 0 tcpcb 808 809 0 798 7 5 2 5 0 8 0 arp 120 56 0 43 1 0 1 1 0 8 0 inpcb 392 2713 0 2698 23 16 7 12 0 8 5 nd6 136 63 0 51 1 0 1 1 0 8 0 pkpcb 40 51 0 51 5 4 1 1 0 8 1 kcovpl 48 19 0 12 1 0 1 1 0 8 0 ppxss 1168 15 0 15 6 5 1 1 0 8 1 pffrag 232 11 0 4 1 0 1 1 0 482 0 pffrnode 88 11 0 4 1 0 1 1 0 8 0 pffrent 40 17 0 10 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 24 167 0 102 1 0 1 1 0 8 0 pfstkey 128 167 0 102 3 0 3 3 0 8 0 pfstate 376 167 0 102 8 0 8 8 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 1028 0 739 31 6 25 30 0 8 4 art_table 32 1029 0 739 4 0 4 4 0 8 0 art_node 16 285 0 224 1 0 1 1 0 8 0 sysvmsgpl 40 28 0 21 1 0 1 1 0 8 0 semupl 112 2 0 2 1 1 0 1 0 8 0 semapl 112 166 0 156 1 0 1 1 0 8 0 shmpl 112 127 0 18 4 0 4 4 0 8 0 dirhash 1024 49 0 32 3 0 3 3 0 8 0 dino2pl 256 5344 0 3824 97 0 97 97 0 8 0 ffsino 272 5344 0 3824 103 0 103 103 0 8 0 nchpl 144 8777 0 7045 67 0 67 67 0 8 0 uvmvnodes 80 5926 0 0 121 0 121 121 0 8 0 vnodes 216 5926 0 0 330 0 330 330 0 8 0 namei 1024 29091 0 29091 4 3 1 2 0 8 1 percpumem 16 85 0 39 1 0 1 1 0 8 0 vcpupl 2048 12 0 1 2 0 2 2 0 8 0 vmpool 696 22 0 11 2 1 1 2 0 8 0 kstatmem 264 102 0 78 3 1 2 3 0 8 0 scsiplug 72 9 0 9 6 6 0 1 0 8 0 scxspl 216 35846 0 35846 19 16 3 8 1 8 3 plimitpl 152 337 0 322 1 0 1 1 0 8 0 sigapl 424 2667 0 2599 10 1 9 9 0 8 1 futexpl 64 31380 0 31377 2 1 1 1 0 8 0 knotepl 120 421 0 0 11 0 11 11 0 8 0 kqueuepl 216 626 0 618 5 4 1 5 0 8 0 pipepl 320 413 0 388 3 0 3 3 0 8 0 fdescpl 496 2627 0 2601 6 1 5 5 0 8 0 filepl 152 16905 0 16669 34 17 17 19 0 8 4 lockfpl 104 575 0 568 1 0 1 1 0 8 0 lockfspl 48 250 0 246 1 0 1 1 0 8 0 sessionpl 144 38 0 23 1 0 1 1 0 8 0 pgrppl 48 87 0 72 1 0 1 1 0 8 0 ucredpl 104 2736 0 2724 1 0 1 1 0 8 0 zombiepl 144 2601 0 2599 2 1 1 1 0 8 0 processpl 1136 2667 0 2599 6 0 6 6 0 8 0 procpl 656 5521 0 5429 9 0 9 9 0 8 0 srpgc 96 34 0 34 4 3 1 1 0 8 1 sosppl 168 75 0 75 3 2 1 1 0 8 1 sockpl 568 5619 0 5585 47 39 8 15 0 8 5 mcl64k 65536 9 0 0 2 0 2 2 0 8 0 mcl16k 16384 4 0 0 1 0 1 1 0 8 0 mcl12k 12288 17 0 0 2 0 2 2 0 8 0 mcl9k 9216 3 0 0 1 0 1 1 0 8 0 mcl8k 8192 16 0 0 2 0 2 2 0 8 0 mcl4k 4096 19 0 0 3 0 3 3 0 8 0 mcl2k2 2112 5 0 0 1 0 1 1 0 8 0 mcl2k 2048 284 0 0 36 0 36 36 0 8 0 mtagpl 96 25 0 0 1 0 1 1 0 8 0 mbufpl 256 487 0 0 27 0 27 27 0 8 0 bufpl 280 9694 0 3439 447 0 447 447 0 8 0 anonpl 24 469588 0 463406 145 81 64 97 0 186 1 amapchunkpl 152 75432 0 74747 66 31 35 44 0 158 2 amappl16 200 12804 0 12676 84 64 20 33 0 8 6 amappl15 192 11 0 11 1 1 0 1 0 8 0 amappl14 184 209 0 192 2 1 1 2 0 8 0 amappl13 176 16 0 16 1 1 0 1 0 8 0 amappl12 168 3484 0 3455 4 2 2 3 0 8 0 amappl11 160 60 0 46 1 0 1 1 0 8 0 amappl10 152 59 0 48 1 0 1 1 0 8 0 amappl9 144 177 0 176 3 2 1 1 0 8 0 amappl8 136 449 0 348 4 0 4 4 0 8 0 amappl7 128 99 0 82 1 0 1 1 0 8 0 amappl6 120 527 0 508 2 0 2 2 0 8 0 amappl5 112 271 0 255 1 0 1 1 0 8 0 amappl4 104 694 0 651 3 1 2 3 0 8 0 amappl3 96 14889 0 14805 3 0 3 3 0 8 0 amappl2 88 3200 0 3124 4 2 2 4 0 8 0 amappl1 80 18759 0 18219 23 10 13 23 0 8 0 amappl 88 22568 0 22362 6 0 6 6 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 72 129 0 18 3 0 3 3 0 8 0 uaddrrnd 24 2649 0 2612 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 2649 0 2612 1 0 1 1 0 8 0 vmmpekpl 168 22440 0 22362 5 1 4 5 0 8 0 vmmpepl 168 181187 0 179176 177 64 113 119 0 357 10 vmsppl 440 2648 0 2611 6 1 5 5 0 8 0 rwobjpl 56 57848 0 50572 111 5 106 106 0 8 0 pdppl 4096 5305 0 5233 176 97 79 82 0 8 7 pvpl 32 47046 0 0 381 1 380 380 0 265 0 pmappl 248 2648 0 2611 3 0 3 3 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 510 0 124 12 0 12 12 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace end trace frame: 0x0, count: -1 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x1e: addq $0x8,%rsp ddb{1}> trace x86_ipi_db(ffff800029cebff0) 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(ffffffff82da1598) at __mp_lock+0x122 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82da1598) at __mp_lock+0x122 sys/kern/kern_lock.c:147 wakeup_n(ffffffff82dc64d0,ffffffff) at wakeup_n+0x58 sys/kern/kern_synch.c:539 uvm_pmr_freepages(fffffd80077a5000,1) at uvm_pmr_freepages+0x2e0 sys/uvm/uvm_pmemrange.c:1303 pmap_do_remove(fffffd80678d9e98,29a21501000,29a21901000,0) at pmap_do_remove+0x678 sys/arch/amd64/amd64/pmap.c:1915 uvm_unmap_kill_entry_withlock(fffffd80766b26e8,fffffd806ed568b0,0) at uvm_unmap_kill_entry_withlock+0x1b1 sys/uvm/uvm_map.c:1897 uvm_map_teardown(fffffd80766b26e8) at uvm_map_teardown+0x1c7 uvm_map_addr_RBT_LEFT sys/uvm/uvm_map.h:176 [inline] uvm_map_teardown(fffffd80766b26e8) at uvm_map_teardown+0x1c7 sys/uvm/uvm_map.c:2534 uvmspace_free(fffffd80766b26e8) at uvmspace_free+0xa6 sys/uvm/uvm_map.c:3461 reaper(ffff80002a148f68) at reaper+0x197 sys/kern/kern_exit.c:463 end trace frame: 0x0, count: -11