login: uvm_fault(0xffffffff828824f0, 0xfffffd0000000008, 0, 2) -> e kernel: page fault trap, code=0 Stopped at soreceive+0x1100: movq %rbx,0x8(%r13) ddb{1}> ddb{1}> set $lines = 0 ddb{1}> set $maxwidth = 0 ddb{1}> show panic kernel page fault uvm_fault(0xffffffff828824f0, 0xfffffd0000000008, 0, 2) -> e soreceive(fffffd806f689320,0,ffff800020e1d538,0,0,ffff800020e1d444) at soreceive+0x1100 sbsync sys/kern/uipc_socket.c:661 [inline] soreceive(fffffd806f689320,0,ffff800020e1d538,0,0,ffff800020e1d444) at soreceive+0x1100 sys/kern/uipc_socket.c:855 end trace frame: 0xffff800020e1d480, count: 0 ddb{1}> trace soreceive(fffffd806f689320,0,ffff800020e1d538,0,0,ffff800020e1d444) at soreceive+0x1100 sbsync sys/kern/uipc_socket.c:661 [inline] soreceive(fffffd806f689320,0,ffff800020e1d538,0,0,ffff800020e1d444) at soreceive+0x1100 sys/kern/uipc_socket.c:855 soo_read(fffffd8071ff6130,ffff800020e1d538,0) at soo_read+0x53 sys/kern/sys_socket.c:70 dofilereadv(ffff800020ddc278,6,ffff800020e1d538,0,ffff800020e1d620) at dofilereadv+0x1a1 sys/kern/sys_generic.c:237 sys_read(ffff800020ddc278,ffff800020e1d5d0,ffff800020e1d620) at sys_read+0x83 sys/kern/sys_generic.c:157 syscall(ffff800020e1d6a0) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800020e1d6a0) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7fffff40f0, count: -6 ddb{1}> show registers rdi 0 rsi 0 rbp 0xffff800020e1d420 rbx 0xfffffd806f702b00 rdx 0xa rcx 0 rax 0 r8 0xffffffff81bf6af1 soreceive+0x5c1 r9 0x3 r10 0xfc2bda7299993412 r11 0xde1be8b3d7825fba r12 0x752 r13 0xfffffd0000000000 r14 0 r15 0xfffffd806f689320 rip 0xffffffff81bf7630 soreceive+0x1100 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff800020e1d330 ss 0x10 soreceive+0x1100: movq %rbx,0x8(%r13) ddb{1}> show proc PROC (dhclient) pid=452106 stat=onproc flags process=0 proc=0 pri=24, usrpri=50, nice=20 forw=0xffffffffffffffff, list=0xffff800020ddcea8,0xffff800020ddc4f8 process=0xffff800020df0010 user=0xffff800020e18000, vmspace=0xfffffd807efff170 estcpu=0, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 65220 505611 38989 0 2 0 syz-executor.1 65220 283639 38989 0 3 0x4000080 fsleep syz-executor.1 4135 472614 1 0 3 0x100083 ttyin getty 61397 243883 0 0 3 0x14200 bored sosplice 38989 128130 12202 0 3 0x82 nanosleep syz-executor.1 12202 215164 81172 0 3 0x82 thrsleep syz-fuzzer 12202 370175 81172 0 3 0x4000082 nanosleep syz-fuzzer 12202 53767 81172 0 3 0x4000082 nanosleep syz-fuzzer 12202 348707 81172 0 3 0x4000082 thrsleep syz-fuzzer 12202 399201 81172 0 3 0x4000082 thrsleep syz-fuzzer 12202 150515 81172 0 3 0x4000082 thrsleep syz-fuzzer 12202 375756 81172 0 3 0x4000082 thrsleep syz-fuzzer 12202 67504 81172 0 3 0x4000082 thrsleep syz-fuzzer 12202 264443 81172 0 3 0x4000082 thrsleep syz-fuzzer 12202 399772 81172 0 2 0x4000082 syz-fuzzer 81172 372301 97357 0 3 0x10008a pause ksh 97357 418587 47839 0 3 0x92 select sshd 47839 299552 1 0 3 0x80 select sshd 2888 357502 54424 74 3 0x100092 bpf pflogd 54424 169717 1 0 3 0x80 netio pflogd 90687 240780 28264 73 3 0x100090 kqread syslogd 28264 379900 1 0 3 0x100082 netio syslogd 55577 373677 1 77 2 0x100010 dhclient *11100 452106 1 0 7 0 dhclient 2614 368504 0 0 3 0x14200 bored smr 72000 447564 0 0 2 0x14200 zerothread 46150 313065 0 0 3 0x14200 aiodoned aiodoned 37165 168013 0 0 3 0x14200 syncer update 69933 298348 0 0 3 0x14200 cleaner cleaner 88255 227121 0 0 7 0x14200 reaper 65577 336344 0 0 3 0x14200 pgdaemon pagedaemon 27690 381923 0 0 3 0x14200 bored crynlk 40238 461234 0 0 3 0x14200 bored crypto 85392 86736 0 0 3 0x40014200 acpi0 acpi0 13446 417190 0 0 3 0x40014200 idle1 78029 343137 0 0 2 0x14200 softnet 97278 66184 0 0 3 0x14200 bored systqmp 89372 156675 0 0 3 0x14200 bored systq 2053 14539 0 0 3 0x40014200 bored softclock 84273 158862 0 0 3 0x40014200 idle0 1 266830 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 11100 (dhclient) thread 0xffff800020ddc278 (452106) exclusive kernel_lock &kernel_lock r = 1 (0xffffffff828f8078) #0 witness_lock+0x4c7 stacktrace_save sys/sys/stacktrace.h:36 [inline] #0 witness_lock+0x4c7 sys/kern/subr_witness.c:1164 #1 solock+0x66 sys/kern/uipc_socket2.c:292 #2 soreceive+0x114 sys/kern/uipc_socket.c:737 #3 soo_read+0x53 sys/kern/sys_socket.c:70 #4 dofilereadv+0x1a1 sys/kern/sys_generic.c:237 #5 sys_read+0x83 sys/kern/sys_generic.c:157 #6 syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] #6 syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 #7 Xsyscall+0x128 Process 78029 (softnet) thread 0xffff800020d889c0 (343137) shared rwlock softnet r = 0 (0xffff80000002c070) #0 witness_lock+0x4c7 stacktrace_save sys/sys/stacktrace.h:36 [inline] #0 witness_lock+0x4c7 sys/kern/subr_witness.c:1164 #1 taskq_thread+0xdf sys/kern/kern_task.c:436 #2 proc_trampoline+0x1c ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 9495 6406K 6922K 78643K 10994 0 pcb 13 8K 8K 78643K 55 0 rtable 87 11K 12K 78643K 301 0 ifaddr 58 13K 15K 78643K 113 0 counters 41 33K 34K 78643K 55 0 ioctlops 0 0K 4K 78643K 1504 0 iov 0 0K 12K 78643K 89 0 mount 1 1K 1K 78643K 1 0 vnodes 1220 77K 77K 78643K 1354 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 3 0 VM map 2 1K 1K 78643K 2 0 sem 12 0K 0K 78643K 59 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1824 197K 290K 78643K 13058 0 file desc 4 9K 25K 78643K 247 0 sigio 0 0K 0K 78643K 3 0 proc 61 63K 95K 78643K 471 0 subproc 16 1K 2K 78643K 34 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 22 0 in_multi 62 3K 3K 78643K 98 0 ether_multi 1 0K 0K 78643K 5 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 49 228K 228K 78643K 49 0 exec 0 0K 1K 78643K 222 0 pagedep 1 8K 8K 78643K 1 0 inodedep 1 32K 32K 78643K 1 0 newblk 1 0K 0K 78643K 1 0 VM swap 7 26K 26K 78643K 7 0 UVM amap 120 55K 55K 78643K 1758 0 UVM aobj 10 2K 2K 78643K 16 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 114 0 NDP 8 0K 0K 78643K 20 0 temp 111 3864K 3930K 78643K 7122 0 kqueue 3 4K 6K 78643K 4 0 SYN cache 2 16K 16K 78643K 2 0 ddb{1}> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle arp 64 6 0 2 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 80 30 0 28 1 0 1 1 0 8 0 rtentry 112 50 0 17 2 0 2 2 0 8 0 unpcb 120 107 0 97 1 0 1 1 0 8 0 syncache 264 4 0 4 1 1 0 1 0 8 0 tcpqe 32 340 0 340 1 1 0 1 0 8 0 tcpcb 544 150 0 146 1 0 1 1 0 8 0 inpcb 296 344 0 337 2 0 2 2 0 8 1 nd6 48 10 0 7 1 0 1 1 0 8 0 pkpcb 40 2 0 2 1 0 1 1 0 8 1 pffrag 232 1 0 1 1 0 1 1 0 482 1 pffrnode 88 1 0 1 1 0 1 1 0 8 1 pffrent 40 45 0 45 1 0 1 1 0 8 1 pfosfp 40 846 0 423 5 0 5 5 0 8 0 pfosfpen 112 1428 0 714 21 0 21 21 0 8 0 pfrktable 1344 12 0 12 1 0 1 1 0 8 1 pfstitem 24 34 0 2 1 0 1 1 0 8 0 pfstkey 112 34 0 2 1 0 1 1 0 8 0 pfstate 328 34 0 2 3 0 3 3 0 8 0 pfrule 1360 27 0 19 2 0 2 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 214 0 69 14 0 14 14 0 8 3 art_table 32 215 0 69 2 0 2 2 0 8 0 art_node 16 49 0 19 1 0 1 1 0 8 0 sysvmsgpl 40 75 0 35 1 0 1 1 0 8 0 semupl 112 2 0 2 1 1 0 1 0 8 0 semapl 112 56 0 46 1 0 1 1 0 8 0 shmpl 112 14 0 6 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1732 0 328 89 0 89 89 0 8 0 ffsino 272 1732 0 328 95 0 95 95 0 8 0 nchpl 144 2316 0 706 60 0 60 60 0 8 0 uvmvnodes 72 1871 0 0 35 0 35 35 0 8 0 vnodes 208 1871 0 0 99 0 99 99 0 8 0 namei 1024 6509 0 6509 1 0 1 1 0 8 1 percpumem 16 38 0 7 1 0 1 1 0 8 0 vcpupl 1984 3 0 0 1 0 1 1 0 8 0 vmpool 560 5 0 2 1 0 1 1 0 8 0 pfiaddrpl 120 4 0 4 1 0 1 1 0 8 1 scxspl 192 6878 0 6878 8 2 6 7 0 8 6 plimitpl 152 35 0 27 1 0 1 1 0 8 0 sigapl 424 464 0 433 4 0 4 4 0 8 0 futexpl 56 3576 0 3575 1 0 1 1 0 8 0 knotepl 112 63 0 46 1 0 1 1 0 8 0 kqueuepl 144 14 0 12 1 0 1 1 0 8 0 pipelkpl 48 115 0 106 1 0 1 1 0 8 0 pipepl 120 230 0 215 1 0 1 1 0 8 0 fdescpl 496 448 0 433 3 0 3 3 0 8 0 filepl 152 2711 0 2630 5 0 5 5 0 8 1 lockfpl 104 57 0 56 1 0 1 1 0 8 0 lockfspl 48 21 0 20 1 0 1 1 0 8 0 sessionpl 112 19 0 8 1 0 1 1 0 8 0 pgrppl 48 19 0 8 1 0 1 1 0 8 0 ucredpl 96 273 0 263 1 0 1 1 0 8 0 zombiepl 144 433 0 432 1 0 1 1 0 8 0 processpl 984 464 0 432 5 0 5 5 0 8 0 procpl 624 975 0 933 4 0 4 4 0 8 0 sosppl 128 3 0 3 1 1 0 1 0 8 0 sockpl 400 484 0 465 4 0 4 4 0 8 2 mcl64k 65536 7 0 0 1 0 1 1 0 8 0 mcl12k 12288 5 0 0 1 0 1 1 0 8 0 mcl9k 9216 2 0 0 1 0 1 1 0 8 0 mcl8k 8192 1 0 0 1 0 1 1 0 8 0 mcl4k 4096 5 0 0 1 0 1 1 0 8 0 mcl2k2 2112 1 0 0 1 0 1 1 0 8 0 mcl2k 2048 167 0 0 20 0 20 20 0 8 0 mtagpl 96 45 0 0 2 0 2 2 0 8 0 mbufpl 256 439 0 0 27 0 27 27 0 8 0 bufpl 280 3918 0 134 271 0 271 271 0 8 0 anonpl 16 57376 0 41136 75 1 74 74 0 124 7 amapchunkpl 152 2501 0 2351 11 0 11 11 0 158 3 amappl16 192 1801 0 928 45 0 45 45 0 8 1 amappl15 184 113 0 110 1 0 1 1 0 8 0 amappl14 176 22 0 19 1 0 1 1 0 8 0 amappl13 168 36 0 32 1 0 1 1 0 8 0 amappl12 160 9 0 6 1 0 1 1 0 8 0 amappl11 152 166 0 148 1 0 1 1 0 8 0 amappl10 144 120 0 113 1 0 1 1 0 8 0 amappl9 136 298 0 297 1 0 1 1 0 8 0 amappl8 128 344 0 315 2 0 2 2 0 8 0 amappl7 120 219 0 208 1 0 1 1 0 8 0 amappl6 112 27 0 23 1 0 1 1 0 8 0 amappl5 104 526 0 508 1 0 1 1 0 8 0 amappl4 96 487 0 457 1 0 1 1 0 8 0 amappl3 88 113 0 108 1 0 1 1 0 8 0 amappl2 80 2743 0 2670 2 0 2 2 0 8 0 amappl1 72 19935 0 19498 23 13 10 18 0 8 0 amappl 80 1230 0 1183 2 0 2 2 0 84 0 dma4096 4096 1 0 1 1 1 0 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 64 15 0 6 1 0 1 1 0 8 0 uaddrrnd 24 453 0 435 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 453 0 435 1 0 1 1 0 8 0 vmmpekpl 168 7620 0 7586 2 0 2 2 0 8 0 vmmpepl 168 61069 0 59055 115 9 106 111 0 357 13 vmsppl 368 452 0 434 2 0 2 2 0 8 0 pdppl 4096 913 0 871 6 0 6 6 0 8 0 pvpl 32 185763 0 166484 179 0 179 179 0 265 21 pmappl 232 452 0 434 2 0 2 2 0 8 0 extentpl 40 53 0 36 1 0 1 1 0 8 0 phpool 112 274 0 2 8 0 8 8 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x1a: addq $0x8,%rsp ddb{0}> trace x86_ipi_db(ffffffff82741ff0) at x86_ipi_db+0x1a sys/arch/amd64/amd64/db_interface.c:352 x86_ipi_handler() at x86_ipi_handler+0xc6 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x23 __mp_lock(ffffffff828f7e70) at __mp_lock+0x127 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff828f7e70) at __mp_lock+0x127 sys/kern/kern_lock.c:147 softintr_dispatch(0) at softintr_dispatch+0x4e sys/arch/amd64/amd64/softintr.c:89 Xsoftclock() at Xsoftclock+0x1f __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc uvm_unmap_detach(ffff800020dcfbf0,1) at uvm_unmap_detach+0xe7 sys/uvm/uvm_map.c:1581 uvm_map_teardown(fffffd807efff8a0) at uvm_map_teardown+0x25c sys/uvm/uvm_map.c:2757 uvmspace_free(fffffd807efff8a0) at uvmspace_free+0x86 sys/uvm/uvm_map.c:3646 uvm_exit(ffff800020df1348) at uvm_exit+0x29 sys/uvm/uvm_glue.c:297 reaper(ffff800020d89860) at reaper+0x189 sys/kern/kern_exit.c:456 end trace frame: 0x0, count: -12 ddb{0}> machine ddbcpu 1 Stopped at soreceive+0x1100: movq %rbx,0x8(%r13) ddb{1}> trace soreceive(fffffd806f689320,0,ffff800020e1d538,0,0,ffff800020e1d444) at soreceive+0x1100 sbsync sys/kern/uipc_socket.c:661 [inline] soreceive(fffffd806f689320,0,ffff800020e1d538,0,0,ffff800020e1d444) at soreceive+0x1100 sys/kern/uipc_socket.c:855 soo_read(fffffd8071ff6130,ffff800020e1d538,0) at soo_read+0x53 sys/kern/sys_socket.c:70 dofilereadv(ffff800020ddc278,6,ffff800020e1d538,0,ffff800020e1d620) at dofilereadv+0x1a1 sys/kern/sys_generic.c:237 sys_read(ffff800020ddc278,ffff800020e1d5d0,ffff800020e1d620) at sys_read+0x83 sys/kern/sys_generic.c:157 syscall(ffff800020e1d6a0) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800020e1d6a0) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7fffff40f0, count: -6