ééuvm_fault(0xffffffff828805c8, 0xfffffd0000000008, 0, 2) -> e kernel: page fault trap, code=0 Stopped at soreceive+0xdcd: movq %rbx,0x8(%r12) ddb{1}> ddb{1}> set $lines = 0 ddb{1}> set $maxwidth = 0 ddb{1}> show panic kernel page fault uvm_fault(0xffffffff828805c8, 0xfffffd0000000008, 0, 2) -> e soreceive(fffffd806f6844b0,0,ffff800020e1ea68,0,0,ffff800020e1e974) at soreceive+0xdcd sys/kern/uipc_socket.c:985 end trace frame: 0xffff800020e1e9b0, count: 0 ddb{1}> trace soreceive(fffffd806f6844b0,0,ffff800020e1ea68,0,0,ffff800020e1e974) at soreceive+0xdcd sys/kern/uipc_socket.c:985 soo_read(fffffd8074616098,ffff800020e1ea68,0) at soo_read+0x53 sys/kern/sys_socket.c:70 dofilereadv(ffff800020ddcc38,6,ffff800020e1ea68,0,ffff800020e1eb50) at dofilereadv+0x1a1 sys/kern/sys_generic.c:237 sys_read(ffff800020ddcc38,ffff800020e1eb00,ffff800020e1eb50) at sys_read+0x83 sys/kern/sys_generic.c:157 syscall(ffff800020e1ebd0) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800020e1ebd0) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffee340, count: -6 ddb{1}> show registers rdi 0 rsi 0 rbp 0xffff800020e1e950 rbx 0xfffffd80645ba600 rdx 0x339b6 acpi_pdirpa+0x1f81e rcx 0 rax 0xfffffd806f6844b0 r8 0xffffffff81371786 soreceive+0xbe6 r9 0x3 r10 0x6c0351ccf7e0fe00 r11 0x2748229a30cc510e r12 0xfffffd0000000000 r13 0 r14 0x1 r15 0 rip 0xffffffff8137196d soreceive+0xdcd cs 0x8 rflags 0x10286 __ALIGN_SIZE+0xf286 rsp 0xffff800020e1e860 ss 0x10 soreceive+0xdcd: movq %rbx,0x8(%r12) ddb{1}> show proc PROC (dhclient) pid=58869 stat=onproc flags process=0 proc=0 pri=24, usrpri=51, nice=20 forw=0xffffffffffffffff, list=0xffff800020ddc758,0xffff800020ddceb8 process=0xffff800020df0f90 user=0xffff800020e19000, vmspace=0xfffffd807efff2e0 estcpu=1, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 64591 239963 0 0 3 0x14200 acct acct 69012 438925 0 0 3 0x14200 bored sosplice 87961 451671 69512 0 2 0x2 syz-executor.0 69512 19089 86069 0 3 0x82 thrsleep syz-fuzzer 69512 462465 86069 0 3 0x4000082 thrsleep syz-fuzzer 69512 293434 86069 0 3 0x4000082 thrsleep syz-fuzzer 69512 71964 86069 0 3 0x4000082 thrsleep syz-fuzzer 69512 424988 86069 0 3 0x4000082 thrsleep syz-fuzzer 69512 6706 86069 0 3 0x4000082 thrsleep syz-fuzzer 69512 414077 86069 0 3 0x4000082 thrsleep syz-fuzzer 69512 332792 86069 0 3 0x4000082 thrsleep syz-fuzzer 69512 515471 86069 0 2 0x4000082 syz-fuzzer 69512 245163 86069 0 3 0x4000082 thrsleep syz-fuzzer 86069 129457 64022 0 3 0x10008a pause ksh 64022 127770 92181 0 3 0x92 select sshd 66828 497344 1 0 3 0x100083 ttyin getty 92181 247431 1 0 3 0x80 select sshd 33870 477185 13542 74 3 0x100092 bpf pflogd 13542 210509 1 0 3 0x80 netio pflogd 53769 361778 25823 73 3 0x100090 kqread syslogd 25823 6557 1 0 3 0x100082 netio syslogd 68337 422994 1 77 2 0x100010 dhclient *59419 58869 1 0 7 0 dhclient 38809 251592 0 0 3 0x14200 bored smr 64557 495536 0 0 2 0x14200 zerothread 29351 313636 0 0 3 0x14200 aiodoned aiodoned 51176 140709 0 0 3 0x14200 syncer update 88867 280104 0 0 3 0x14200 cleaner cleaner 96388 252887 0 0 7 0x14200 reaper 23385 131012 0 0 3 0x14200 pgdaemon pagedaemon 59255 169662 0 0 3 0x14200 bored crynlk 90453 332857 0 0 3 0x14200 bored crypto 42527 227441 0 0 3 0x40014200 acpi0 acpi0 38907 163179 0 0 3 0x40014200 idle1 85772 459946 0 0 2 0x14200 softnet 67579 167552 0 0 3 0x14200 bored systqmp 3875 137567 0 0 3 0x14200 bored systq 68171 7829 0 0 3 0x40014200 bored softclock 19419 400842 0 0 3 0x40014200 idle0 1 242342 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 59419 (dhclient) thread 0xffff800020ddcc38 (58869) exclusive kernel_lock &kernel_lock r = 1 (0xffffffff828f5de0) #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+0xb3a sys/kern/uipc_socket.c:956 #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 85772 (softnet) thread 0xffff800020d884e0 (459946) 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 9523 6433K 6792K 78643K 11250 0 pcb 13 8K 8K 78643K 113 0 rtable 80 3K 9K 78643K 522 0 ifaddr 70 13K 18K 78643K 192 0 counters 41 33K 34K 78643K 65 0 ioctlops 0 0K 4K 78643K 2193 0 iov 0 0K 16K 78643K 60 0 mount 1 1K 1K 78643K 1 0 vnodes 1223 77K 77K 78643K 1462 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 8 0 VM map 2 1K 1K 78643K 2 0 sem 12 0K 0K 78643K 129 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1824 197K 290K 78643K 13058 0 file desc 3 5K 25K 78643K 679 0 sigio 0 0K 0K 78643K 4 0 proc 62 63K 95K 78643K 525 0 subproc 16 1K 2K 78643K 38 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 45 0 in_multi 52 2K 3K 78643K 179 0 ether_multi 1 0K 0K 78643K 14 0 mrt 0 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 249 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 117 55K 55K 78643K 3306 0 UVM aobj 33 6K 6K 78643K 37 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 90 0 NDP 12 0K 0K 78643K 41 0 temp 122 3867K 3933K 78643K 8895 0 kqueue 3 4K 22K 78643K 31 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 56 0 54 1 0 1 1 0 8 0 rtentry 112 91 0 61 2 0 2 2 0 8 0 unpcb 120 275 0 265 1 0 1 1 0 8 0 syncache 264 4 0 4 1 1 0 1 0 8 0 tcpcb 544 167 0 163 1 0 1 1 0 8 0 inpcb 296 624 0 617 4 2 2 2 0 8 1 rttmr 72 2 0 2 1 0 1 1 0 8 1 nd6 48 27 0 26 1 0 1 1 0 8 0 pkpcb 40 6 0 6 3 3 0 1 0 8 0 ppxss 1128 1 0 1 1 1 0 1 0 8 0 pfstscr 40 2 0 2 1 1 0 1 0 8 0 pffrag 232 2 0 2 1 1 0 1 0 482 0 pffrnode 88 2 0 2 1 1 0 1 0 8 0 pffrent 40 90 0 90 1 1 0 1 0 8 0 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 60 0 60 4 3 1 2 0 8 1 pfstitem 24 22 0 12 1 0 1 1 0 8 0 pfstkey 112 24 0 14 1 0 1 1 0 8 0 pfstate 328 23 0 13 2 0 2 2 0 8 0 pfrule 1360 36 0 35 2 1 1 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 401 0 272 16 3 13 13 0 8 2 art_table 32 402 0 272 2 0 2 2 0 8 0 art_node 16 90 0 62 1 0 1 1 0 8 0 sysvmsgpl 40 24 0 12 1 0 1 1 0 8 0 semapl 112 127 0 117 1 0 1 1 0 8 0 shmpl 112 34 0 4 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 2641 0 1232 89 0 89 89 0 8 0 ffsino 272 2641 0 1232 95 0 95 95 0 8 0 nchpl 144 3902 0 2291 61 1 60 61 0 8 0 uvmvnodes 72 2849 0 0 52 0 52 52 0 8 0 vnodes 208 2849 0 0 150 0 150 150 0 8 0 namei 1024 11218 0 11218 1 0 1 1 0 8 1 percpumem 16 43 0 12 1 0 1 1 0 8 0 vcpupl 1984 6 0 0 1 0 1 1 0 8 0 vmpool 560 6 0 0 1 0 1 1 0 8 0 pfiaddrpl 120 19 0 19 3 2 1 1 0 8 1 scsiplug 64 1 0 1 1 1 0 1 0 8 0 scxspl 192 11405 0 11405 11 10 1 6 0 8 1 plimitpl 152 42 0 34 1 0 1 1 0 8 0 sigapl 424 896 0 865 4 0 4 4 0 8 0 futexpl 56 10323 0 10323 2 1 1 1 0 8 1 knotepl 112 133 0 116 2 1 1 2 0 8 0 kqueuepl 144 90 0 87 1 0 1 1 0 8 0 pipepl 304 159 0 150 3 1 2 2 0 8 1 fdescpl 496 879 0 865 3 0 3 3 0 8 0 filepl 152 5480 0 5401 7 2 5 6 0 8 1 lockfpl 104 153 0 152 1 0 1 1 0 8 0 lockfspl 48 52 0 51 1 0 1 1 0 8 0 sessionpl 112 18 0 7 1 0 1 1 0 8 0 pgrppl 48 26 0 15 1 0 1 1 0 8 0 ucredpl 96 474 0 465 1 0 1 1 0 8 0 zombiepl 144 865 0 864 2 1 1 1 0 8 0 processpl 992 896 0 864 5 0 5 5 0 8 0 procpl 624 2356 0 2315 4 0 4 4 0 8 0 sosppl 128 6 0 6 3 2 1 1 0 8 1 sockpl 400 965 0 946 9 6 3 6 0 8 1 mcl64k 65536 18 0 0 3 0 3 3 0 8 0 mcl16k 16384 1 0 0 1 0 1 1 0 8 0 mcl12k 12288 14 0 0 2 0 2 2 0 8 0 mcl9k 9216 7 0 0 1 0 1 1 0 8 0 mcl8k 8192 2 0 0 1 0 1 1 0 8 0 mcl4k 4096 14 0 0 2 0 2 2 0 8 0 mcl2k2 2112 2 0 0 1 0 1 1 0 8 0 mcl2k 2048 171 0 0 21 1 20 21 0 8 0 mtagpl 96 44 0 0 2 0 2 2 0 8 0 mbufpl 256 381 0 0 22 0 22 22 0 8 0 bufpl 280 4814 0 135 335 0 335 335 0 8 0 anonpl 16 85389 0 69161 86 18 68 83 0 124 0 amapchunkpl 152 4659 0 4495 9 0 9 9 0 158 0 amappl16 192 4025 0 3144 57 12 45 57 0 8 0 amappl15 184 9 0 8 2 1 1 1 0 8 0 amappl14 176 23 0 19 1 0 1 1 0 8 0 amappl13 168 29 0 26 1 0 1 1 0 8 0 amappl12 160 17 0 16 2 1 1 1 0 8 0 amappl11 152 359 0 343 1 0 1 1 0 8 0 amappl10 144 23 0 18 1 0 1 1 0 8 0 amappl9 136 734 0 732 1 0 1 1 0 8 0 amappl8 128 697 0 668 1 0 1 1 0 8 0 amappl7 120 121 0 108 1 0 1 1 0 8 0 amappl6 112 325 0 322 1 0 1 1 0 8 0 amappl5 104 783 0 764 1 0 1 1 0 8 0 amappl4 96 499 0 469 1 0 1 1 0 8 0 amappl3 88 137 0 131 1 0 1 1 0 8 0 amappl2 80 6098 0 6038 2 0 2 2 0 8 0 amappl1 72 28302 0 27871 23 13 10 18 0 8 0 amappl 80 2618 0 2571 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 36 0 4 1 0 1 1 0 8 0 uaddrrnd 24 885 0 865 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 885 0 865 1 0 1 1 0 8 0 vmmpekpl 168 10778 0 10741 2 0 2 2 0 8 0 vmmpepl 168 114064 0 112118 130 34 96 112 0 357 4 vmsppl 368 884 0 864 4 1 3 3 0 8 1 pdppl 4096 1777 0 1734 6 0 6 6 0 8 0 pvpl 32 273624 0 254385 201 40 161 196 0 265 2 pmappl 232 884 0 864 3 1 2 2 0 8 0 extentpl 40 53 0 36 1 0 1 1 0 8 0 phpool 112 283 0 14 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(ffffffff82701ff0) 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 __sanitizer_cov_trace_cmp4(be937,be938) at __sanitizer_cov_trace_cmp4+0x62 sys/dev/kcov.c:137 __mp_lock(ffffffff828f5bd8) at __mp_lock+0x139 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff828f5bd8) at __mp_lock+0x139 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_cmp4(ffffffff828f5bd8,ffffffff828f5bd8) at __sanitizer_cov_trace_cmp4+0xb sys/dev/kcov.c:134 uvm_unmap_detach(ffff800020dcf460,1) at uvm_unmap_detach+0xe7 sys/uvm/uvm_map.c:1581 uvm_map_teardown(fffffd807efffa10) at uvm_map_teardown+0x25c sys/uvm/uvm_map.c:2757 uvmspace_free(fffffd807efffa10) at uvmspace_free+0x86 sys/uvm/uvm_map.c:3646 uvm_exit(ffff800020df1750) at uvm_exit+0x29 sys/uvm/uvm_glue.c:297 reaper(ffff800020d89ad0) at reaper+0x189 sys/kern/kern_exit.c:456 end trace frame: 0x0, count: -13 ddb{0}> machine ddbcpu 1 Stopped at soreceive+0xdcd: movq %rbx,0x8(%r12) ddb{1}> trace soreceive(fffffd806f6844b0,0,ffff800020e1ea68,0,0,ffff800020e1e974) at soreceive+0xdcd sys/kern/uipc_socket.c:985 soo_read(fffffd8074616098,ffff800020e1ea68,0) at soo_read+0x53 sys/kern/sys_socket.c:70 dofilereadv(ffff800020ddcc38,6,ffff800020e1ea68,0,ffff800020e1eb50) at dofilereadv+0x1a1 sys/kern/sys_generic.c:237 sys_read(ffff800020ddcc38,ffff800020e1eb00,ffff800020e1eb50) at sys_read+0x83 sys/kern/sys_generic.c:157 syscall(ffff800020e1ebd0) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800020e1ebd0) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffee340, count: -6