uvm_fault(0xffffffff827df520, 0xfffffd0000000008, 0, 2) -> e kernel: page fault trap, code=0 Stopped at soreceive+0x1100: movq %rbx,0x8(%r13) ddb{0}> ddb{0}> set $lines = 0 ddb{0}> set $maxwidth = 0 ddb{0}> show panic kernel page fault uvm_fault(0xffffffff827df520, 0xfffffd0000000008, 0, 2) -> e soreceive(fffffd806f67a640,0,ffff800020e1d578,0,0,ffff800020e1d484) at soreceive+0x1100 sbsync sys/kern/uipc_socket.c:661 [inline] soreceive(fffffd806f67a640,0,ffff800020e1d578,0,0,ffff800020e1d484) at soreceive+0x1100 sys/kern/uipc_socket.c:855 end trace frame: 0xffff800020e1d4c0, count: 0 ddb{0}> trace soreceive(fffffd806f67a640,0,ffff800020e1d578,0,0,ffff800020e1d484) at soreceive+0x1100 sbsync sys/kern/uipc_socket.c:661 [inline] soreceive(fffffd806f67a640,0,ffff800020e1d578,0,0,ffff800020e1d484) at soreceive+0x1100 sys/kern/uipc_socket.c:855 soo_read(fffffd80785f61c8,ffff800020e1d578,0) at soo_read+0x53 sys/kern/sys_socket.c:70 dofilereadv(ffff800020ddc278,6,ffff800020e1d578,0,ffff800020e1d660) at dofilereadv+0x1a1 sys/kern/sys_generic.c:237 sys_read(ffff800020ddc278,ffff800020e1d610,ffff800020e1d660) at sys_read+0x83 sys/kern/sys_generic.c:157 syscall(ffff800020e1d6e0) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800020e1d6e0) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffe6cd0, count: -6 ddb{0}> show registers rdi 0 rsi 0 rbp 0xffff800020e1d460 rbx 0xfffffd8069b89300 rdx 0x61e20 acpi_pdirpa+0x4dc88 rcx 0 rax 0 r8 0xffffffff818e1c51 soreceive+0x5c1 r9 0x3 r10 0xec9c82b55b6355d4 r11 0xc9540ad69e5e8b5 r12 0x440 r13 0xfffffd0000000000 r14 0 r15 0xfffffd806f67a640 rip 0xffffffff818e2790 soreceive+0x1100 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff800020e1d370 ss 0x10 soreceive+0x1100: movq %rbx,0x8(%r13) ddb{0}> show proc PROC (dhclient) pid=291402 stat=onproc flags process=0 proc=0 pri=24, usrpri=51, nice=20 forw=0xffffffffffffffff, list=0xffff800020ddd388,0xffff800020ddc018 process=0xffff800020df1348 user=0xffff800020e18000, vmspace=0xfffffd807efff000 estcpu=1, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 70689 426923 49644 0 2 0 syz-executor.0 70689 263050 49644 0 2 0x4000000 syz-executor.0 70689 443982 49644 0 3 0x4000080 fsleep syz-executor.0 81596 148188 0 0 3 0x14200 bored sosplice 62608 344773 59013 0 7 0x482 syz-executor.1 49644 201793 59013 0 2 0x482 syz-executor.0 59013 287844 13259 0 3 0x82 thrsleep syz-fuzzer 59013 470137 13259 0 3 0x4000082 thrsleep syz-fuzzer 59013 226596 13259 0 3 0x4000082 thrsleep syz-fuzzer 59013 429248 13259 0 3 0x4000082 thrsleep syz-fuzzer 59013 368763 13259 0 3 0x4000082 thrsleep syz-fuzzer 59013 363210 13259 0 3 0x4000082 kqread syz-fuzzer 59013 510390 13259 0 3 0x4000082 thrsleep syz-fuzzer 59013 217282 13259 0 3 0x4000082 thrsleep syz-fuzzer 59013 76186 13259 0 3 0x4000082 thrsleep syz-fuzzer 59013 425148 13259 0 3 0x4000082 thrsleep syz-fuzzer 13259 132254 31977 0 3 0x10008a pause ksh 31977 130654 75054 0 3 0x92 select sshd 1285 393044 1 0 3 0x100083 ttyin getty 75054 413774 1 0 3 0x80 select sshd 94273 1782 77633 74 3 0x100092 bpf pflogd 77633 94703 1 0 3 0x80 netio pflogd 78745 361311 38182 73 3 0x100090 kqread syslogd 38182 293598 1 0 3 0x100082 netio syslogd 63624 479416 1 77 3 0x100090 poll dhclient *84064 291402 1 0 7 0 dhclient 84436 20066 0 0 3 0x14200 bored smr 60716 407089 0 0 3 0x14200 pgzero zerothread 3225 311912 0 0 3 0x14200 aiodoned aiodoned 62096 518136 0 0 3 0x14200 syncer update 80816 160279 0 0 3 0x14200 cleaner cleaner 72466 145506 0 0 3 0x14200 reaper reaper 55998 500620 0 0 3 0x14200 pgdaemon pagedaemon 43504 183396 0 0 3 0x14200 bored crynlk 12301 385617 0 0 3 0x14200 bored crypto 34894 276819 0 0 3 0x40014200 acpi0 acpi0 53956 382245 0 0 3 0x40014200 idle1 81372 455926 0 0 3 0x14200 bored softnet 84232 273550 0 0 3 0x14200 bored systqmp 74353 311769 0 0 3 0x14200 bored systq 75241 125006 0 0 3 0x40014200 bored softclock 65039 219045 0 0 3 0x40014200 idle0 1 376936 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 84064 (dhclient) thread 0xffff800020ddc278 (291402) exclusive kernel_lock &kernel_lock r = 1 (0xffffffff82910c50) #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 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 9519 6430K 7120K 78643K 11258 0 pcb 13 8K 8K 78643K 55 0 rtable 84 4K 4K 78643K 289 0 ifaddr 64 12K 12K 78643K 99 0 sysctl 0 0K 0K 78643K 2 0 counters 41 33K 34K 78643K 49 0 ioctlops 0 0K 4K 78643K 1519 0 iov 0 0K 16K 78643K 52 0 mount 1 1K 1K 78643K 1 0 vnodes 1219 77K 77K 78643K 1426 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 6 0 VM map 2 1K 1K 78643K 2 0 sem 12 0K 1K 78643K 88 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1824 197K 290K 78643K 13058 0 file desc 5 13K 25K 78643K 340 0 sigio 1 0K 0K 78643K 6 0 proc 61 63K 95K 78643K 468 0 subproc 32 2K 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 37 0 in_multi 34 2K 2K 78643K 102 0 ether_multi 1 0K 0K 78643K 14 0 mrt 0 0K 0K 78643K 6 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 55 254K 254K 78643K 55 0 exec 0 0K 1K 78643K 237 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 138 120K 121K 78643K 2091 0 UVM aobj 15 2K 2K 78643K 18 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 1K 78643K 49 0 NDP 11 0K 0K 78643K 24 0 temp 110 3867K 3931K 78643K 9286 0 kqueue 3 4K 10K 78643K 15 0 SYN cache 2 16K 16K 78643K 2 0 ddb{0}> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle arp 64 9 0 5 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 80 29 0 27 1 0 1 1 0 8 0 rtentry 112 64 0 34 2 0 2 2 0 8 0 unpcb 120 167 0 157 1 0 1 1 0 8 0 syncache 264 6 0 6 2 2 0 1 0 8 0 tcpqe 32 24 0 24 1 1 0 1 0 8 0 tcpcb 544 228 0 220 2 1 1 2 0 8 0 inpcb 296 465 0 454 2 0 2 2 0 8 1 rttmr 72 2 0 2 1 1 0 1 0 8 0 nd6 48 11 0 10 1 0 1 1 0 8 0 ppxss 1128 1 0 1 1 1 0 1 0 8 0 pffrag 232 4 0 4 2 1 1 1 0 482 1 pffrnode 88 4 0 4 2 1 1 1 0 8 1 pffrent 40 137 0 137 2 1 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 3 0 1 1 0 1 1 0 8 0 pfstitem 24 22 0 3 1 0 1 1 0 8 0 pfstkey 112 22 0 3 1 0 1 1 0 8 0 pfstate 328 22 0 3 2 0 2 2 0 8 0 pfrule 1360 23 0 16 2 1 1 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 237 0 99 12 2 10 12 0 8 1 art_table 32 238 0 99 2 0 2 2 0 8 0 art_node 16 63 0 35 1 0 1 1 0 8 0 sysvmsgpl 40 19 0 6 1 0 1 1 0 8 0 semupl 112 1 0 1 1 1 0 1 0 8 0 semapl 112 84 0 74 1 0 1 1 0 8 0 shmpl 112 16 0 3 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1848 0 444 89 1 88 89 0 8 0 ffsino 272 1848 0 444 94 0 94 94 0 8 0 nchpl 144 2564 0 965 60 0 60 60 0 8 0 uvmvnodes 72 2056 0 0 38 0 38 38 0 8 0 vnodes 208 2056 0 0 109 0 109 109 0 8 0 namei 1024 7607 0 7607 1 0 1 1 0 8 1 percpumem 16 35 0 4 1 0 1 1 0 8 0 vcpupl 1984 10 0 0 2 0 2 2 0 8 0 vmpool 560 14 0 4 1 0 1 1 0 8 0 pfiaddrpl 120 2 0 0 1 0 1 1 0 8 0 scxspl 192 7540 0 7540 8 6 2 7 0 8 2 plimitpl 152 29 0 21 1 0 1 1 0 8 0 sigapl 424 556 0 524 4 0 4 4 0 8 0 futexpl 56 5504 0 5503 1 0 1 1 0 8 0 knotepl 112 76 0 57 1 0 1 1 0 8 0 kqueuepl 144 53 0 51 1 0 1 1 0 8 0 pipelkpl 48 119 0 109 1 0 1 1 0 8 0 pipepl 120 238 0 219 1 0 1 1 0 8 0 fdescpl 496 540 0 524 3 0 3 3 0 8 0 filepl 152 3566 0 3462 6 1 5 6 0 8 1 lockfpl 104 82 0 81 1 0 1 1 0 8 0 lockfspl 48 34 0 33 1 0 1 1 0 8 0 sessionpl 112 18 0 7 1 0 1 1 0 8 0 pgrppl 48 20 0 9 1 0 1 1 0 8 0 ucredpl 96 788 0 779 1 0 1 1 0 8 0 zombiepl 144 524 0 523 1 0 1 1 0 8 0 processpl 984 556 0 523 5 0 5 5 0 8 0 procpl 624 1287 0 1243 4 0 4 4 0 8 0 srpgc 64 2 0 2 1 1 0 1 0 8 0 sosppl 128 3 0 3 1 0 1 1 0 8 1 sockpl 400 665 0 642 6 2 4 5 0 8 1 mcl64k 65536 5 0 0 1 0 1 1 0 8 0 mcl16k 16384 1 0 0 1 0 1 1 0 8 0 mcl12k 12288 4 0 0 1 0 1 1 0 8 0 mcl9k 9216 1 0 0 1 0 1 1 0 8 0 mcl8k 8192 2 0 0 1 0 1 1 0 8 0 mcl4k 4096 7 0 0 1 0 1 1 0 8 0 mcl2k2 2112 1 0 0 1 0 1 1 0 8 0 mcl2k 2048 177 0 0 22 0 22 22 0 8 0 mtagpl 96 42 0 0 2 0 2 2 0 8 0 mbufpl 256 331 0 0 20 0 20 20 0 8 0 bufpl 280 4971 0 134 346 0 346 346 0 8 0 anonpl 16 71370 0 54887 84 2 82 83 0 124 12 amapchunkpl 152 3614 0 3463 21 2 19 21 0 158 11 amappl16 192 3022 0 2134 57 3 54 57 0 8 7 amappl15 184 1 0 0 1 0 1 1 0 8 0 amappl14 176 33 0 27 1 0 1 1 0 8 0 amappl13 168 28 0 25 1 0 1 1 0 8 0 amappl12 160 18 0 13 1 0 1 1 0 8 0 amappl11 152 206 0 189 1 0 1 1 0 8 0 amappl10 144 16 0 11 1 0 1 1 0 8 0 amappl9 136 546 0 544 1 0 1 1 0 8 0 amappl8 128 506 0 474 2 0 2 2 0 8 0 amappl7 120 117 0 105 1 0 1 1 0 8 0 amappl6 112 176 0 168 1 0 1 1 0 8 0 amappl5 104 435 0 418 1 0 1 1 0 8 0 amappl4 96 492 0 458 1 0 1 1 0 8 0 amappl3 88 115 0 109 1 0 1 1 0 8 0 amappl2 80 3367 0 3299 2 0 2 2 0 8 0 amappl1 72 21602 0 21156 23 13 10 18 0 8 0 amappl 80 1553 0 1502 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 17 0 3 1 0 1 1 0 8 0 uaddrrnd 24 554 0 528 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 554 0 528 1 0 1 1 0 8 0 vmmpekpl 168 8089 0 8051 2 0 2 2 0 8 0 vmmpepl 168 73163 0 71090 114 9 105 109 0 357 10 vmsppl 368 553 0 528 3 0 3 3 0 8 0 pdppl 4096 1115 0 1066 7 0 7 7 0 8 0 pvpl 32 212734 0 193105 198 1 197 198 0 265 36 pmappl 232 553 0 528 2 0 2 2 0 8 0 extentpl 40 53 0 36 1 0 1 1 0 8 0 phpool 112 272 0 9 8 0 8 8 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace soreceive(fffffd806f67a640,0,ffff800020e1d578,0,0,ffff800020e1d484) at soreceive+0x1100 sbsync sys/kern/uipc_socket.c:661 [inline] soreceive(fffffd806f67a640,0,ffff800020e1d578,0,0,ffff800020e1d484) at soreceive+0x1100 sys/kern/uipc_socket.c:855 soo_read(fffffd80785f61c8,ffff800020e1d578,0) at soo_read+0x53 sys/kern/sys_socket.c:70 dofilereadv(ffff800020ddc278,6,ffff800020e1d578,0,ffff800020e1d660) at dofilereadv+0x1a1 sys/kern/sys_generic.c:237 sys_read(ffff800020ddc278,ffff800020e1d610,ffff800020e1d660) at sys_read+0x83 sys/kern/sys_generic.c:157 syscall(ffff800020e1d6e0) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800020e1d6e0) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffe6cd0, count: -6 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x1a: addq $0x8,%rsp ddb{1}> trace x86_ipi_db(ffff800020d70ff0) 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(ffffffff82910a48) at __mp_lock+0x127 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82910a48) at __mp_lock+0x127 sys/kern/kern_lock.c:147 __mp_acquire_count(ffffffff82910a48,1) at __mp_acquire_count+0x51 sys/kern/kern_lock.c:227 mi_switch() at mi_switch+0x392 sys/kern/sched_bsd.c:435 sleep_finish(ffff8000231055d0,1) at sleep_finish+0x113 sys/kern/kern_synch.c:418 sleep_finish_all(ffff8000231055d0,1) at sleep_finish_all+0x32 sleep_finish_timeout sys/kern/kern_synch.c:447 [inline] sleep_finish_all(ffff8000231055d0,1) at sleep_finish_all+0x32 sys/kern/kern_synch.c:393 tsleep(ffffffff827ade78,120,ffffffff823ebbd1,2) at tsleep+0x1cc sys/kern/kern_synch.c:155 sys_nanosleep(ffff800020e23878,ffff800023105700,ffff800023105750) at sys_nanosleep+0x205 sys/kern/kern_time.c:297 syscall(ffff8000231057d0) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff8000231057d0) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7fffff21c0, count: -12