uvm_fault(0xffffffff8285df78, 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(0xffffffff8285df78, 0xfffffd0000000008, 0, 2) -> e soreceive(fffffd806f684000,0,ffff800020e1e208,0,0,ffff800020e1e114) at soreceive+0x1100 sbsync sys/kern/uipc_socket.c:661 [inline] soreceive(fffffd806f684000,0,ffff800020e1e208,0,0,ffff800020e1e114) at soreceive+0x1100 sys/kern/uipc_socket.c:855 end trace frame: 0xffff800020e1e150, count: 0 ddb{1}> trace soreceive(fffffd806f684000,0,ffff800020e1e208,0,0,ffff800020e1e114) at soreceive+0x1100 sbsync sys/kern/uipc_socket.c:661 [inline] soreceive(fffffd806f684000,0,ffff800020e1e208,0,0,ffff800020e1e114) at soreceive+0x1100 sys/kern/uipc_socket.c:855 soo_read(fffffd80747f6260,ffff800020e1e208,0) at soo_read+0x53 sys/kern/sys_socket.c:70 dofilereadv(ffff800020ddcea8,6,ffff800020e1e208,0,ffff800020e1e2f0) at dofilereadv+0x1a1 sys/kern/sys_generic.c:237 sys_read(ffff800020ddcea8,ffff800020e1e2a0,ffff800020e1e2f0) at sys_read+0x83 sys/kern/sys_generic.c:157 syscall(ffff800020e1e370) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800020e1e370) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffe0bc0, count: -6 ddb{1}> show registers rdi 0 rsi 0 rbp 0xffff800020e1e0f0 rbx 0xfffffd806d7fd700 rdx 0x2f1f0 acpi_pdirpa+0x1b058 rcx 0 rax 0 r8 0xffffffff82079741 soreceive+0x5c1 r9 0x3 r10 0x64d9da063b65bb95 r11 0x7d672d7990e84e15 r12 0xcac r13 0xfffffd0000000000 r14 0 r15 0xfffffd806f684000 rip 0xffffffff8207a280 soreceive+0x1100 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff800020e1e000 ss 0x10 soreceive+0x1100: movq %rbx,0x8(%r13) ddb{1}> show proc PROC (dhclient) pid=176998 stat=onproc flags process=0 proc=0 pri=24, usrpri=51, nice=20 forw=0xffffffffffffffff, list=0xffff800020ddc758,0xffff800020ddd608 process=0xffff800020df1370 user=0xffff800020e19000, vmspace=0xfffffd807efff170 estcpu=1, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 48833 35542 26532 0 7 0x1 syz-executor.1 48833 181384 26532 0 3 0x4000080 nanosleep syz-executor.1 46582 335428 42556 0 2 0 syz-executor.0 46582 72660 42556 0 3 0x4000080 fsleep syz-executor.0 90457 144240 1 0 3 0x100083 ttyin getty 78468 153218 0 0 3 0x14280 nfsidl nfsio 19221 376499 0 0 3 0x14280 nfsidl nfsio 28789 206212 0 0 3 0x14280 nfsidl nfsio 90276 27131 0 0 3 0x14280 nfsidl nfsio 84439 470941 0 0 3 0x14280 nfsidl nfsio 79667 423237 0 0 3 0x14280 nfsidl nfsio 80026 414165 0 0 3 0x14280 nfsidl nfsio 30470 327806 0 0 3 0x14280 nfsidl nfsio 11023 96114 0 0 3 0x14280 nfsidl nfsio 73036 203360 0 0 3 0x14280 nfsidl nfsio 58536 285741 0 0 3 0x14280 nfsidl nfsio 43459 414555 0 0 3 0x14280 nfsidl nfsio 50563 123059 0 0 3 0x14280 nfsidl nfsio 27330 282812 0 0 3 0x14280 nfsidl nfsio 64655 190274 0 0 3 0x14280 nfsidl nfsio 30890 519756 0 0 3 0x14280 nfsidl nfsio 9851 244993 0 0 3 0x14280 nfsidl nfsio 63076 467458 0 0 3 0x14280 nfsidl nfsio 42991 467583 0 0 3 0x14280 nfsidl nfsio 45155 260926 0 0 3 0x14280 nfsidl nfsio 63228 76054 0 0 3 0x14200 acct acct 42556 424844 22861 0 3 0x82 nanosleep syz-executor.0 46986 418376 0 0 3 0x14200 bored sosplice 26532 93355 22861 0 3 0x82 nanosleep syz-executor.1 22861 158482 82609 0 3 0x82 thrsleep syz-fuzzer 22861 283858 82609 0 3 0x4000082 nanosleep syz-fuzzer 22861 253589 82609 0 3 0x4000082 thrsleep syz-fuzzer 22861 409130 82609 0 3 0x4000082 thrsleep syz-fuzzer 22861 151084 82609 0 3 0x4000082 thrsleep syz-fuzzer 22861 36359 82609 0 3 0x4000082 thrsleep syz-fuzzer 22861 49726 82609 0 3 0x4000082 thrsleep syz-fuzzer 22861 277883 82609 0 3 0x4000082 thrsleep syz-fuzzer 22861 32857 82609 0 3 0x4000082 thrsleep syz-fuzzer 22861 79536 82609 0 3 0x4000082 kqread syz-fuzzer 82609 84628 10301 0 3 0x10008a pause ksh 10301 428674 43179 0 3 0x92 select sshd 43179 515014 1 0 3 0x80 select sshd 48145 103033 10271 74 3 0x100092 bpf pflogd 10271 272289 1 0 3 0x80 netio pflogd 17918 309048 40352 73 3 0x100090 kqread syslogd 40352 492759 1 0 3 0x100082 netio syslogd 99824 402625 1 77 3 0x100090 poll dhclient *52894 176998 1 0 7 0 dhclient 4641 195955 0 0 3 0x14200 bored smr 24028 77531 0 0 2 0x14200 zerothread 85038 295409 0 0 3 0x14200 aiodoned aiodoned 47561 199951 0 0 3 0x14200 syncer update 49914 113971 0 0 3 0x14200 cleaner cleaner 68880 173079 0 0 3 0x14200 reaper reaper 73836 144130 0 0 3 0x14200 pgdaemon pagedaemon 71744 264835 0 0 3 0x14200 bored crynlk 93037 252515 0 0 3 0x14200 bored crypto 55835 282011 0 0 3 0x40014200 acpi0 acpi0 81400 185464 0 0 3 0x40014200 idle1 57236 203707 0 0 3 0x14200 bored softnet 85257 345367 0 0 3 0x14200 bored systqmp 96913 179269 0 0 3 0x14200 bored systq 79297 112906 0 0 3 0x40014200 bored softclock 21372 300141 0 0 3 0x40014200 idle0 1 454800 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 52894 (dhclient) thread 0xffff800020ddcea8 (176998) exclusive kernel_lock &kernel_lock r = 1 (0xffffffff828fbd80) #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{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 9531 6488K 11408K 78643K 13318 0 pcb 13 8K 8K 78643K 118 0 rtable 144 18K 19K 78643K 592 0 ifaddr 95 19K 19K 78643K 216 0 sysctl 3 1K 1K 78643K 3 0 counters 43 33K 34K 78643K 69 0 ioctlops 0 0K 4K 78643K 1566 0 iov 0 0K 36K 78643K 560 0 mount 1 1K 1K 78643K 1 0 vnodes 1220 77K 77K 78643K 1913 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 10 0 VM map 2 1K 1K 78643K 2 0 sem 12 1K 1K 78643K 19 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1824 197K 290K 78643K 13058 0 file desc 6 17K 25K 78643K 681 0 sigio 0 0K 0K 78643K 15 0 proc 62 63K 95K 78643K 542 0 subproc 32 2K 2K 78643K 51 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 40 0 in_multi 52 2K 3K 78643K 188 0 ether_multi 1 0K 0K 78643K 17 0 mrt 0 0K 0K 78643K 19 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 277 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 137 104K 104K 78643K 3278 0 UVM aobj 21 2K 2K 78643K 29 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 82 0 NDP 13 0K 0K 78643K 45 0 temp 129 3872K 3936K 78643K 19061 0 kqueue 3 4K 16K 78643K 48 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 11 0 4 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 80 55 0 53 1 0 1 1 0 8 0 rtentry 112 107 0 59 2 0 2 2 0 8 0 unpcb 120 285 0 275 1 0 1 1 0 8 0 syncache 264 7 0 7 3 2 1 1 0 8 1 tcpqe 32 382 0 382 1 1 0 1 0 8 0 tcpcb 544 232 0 228 1 0 1 1 0 8 0 inpcb 296 758 0 749 4 2 2 2 0 8 1 rttmr 72 6 0 6 3 3 0 1 0 8 0 nd6 48 35 0 26 1 0 1 1 0 8 0 pkpcb 40 10 0 10 3 3 0 1 0 8 0 pfstscr 40 3 0 3 2 1 1 1 0 8 1 pffrag 232 3 0 3 1 1 0 1 0 482 0 pffrnode 88 3 0 3 1 1 0 1 0 8 0 pffrent 40 135 0 135 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 50 0 38 2 0 2 2 0 8 0 pfstitem 24 26 0 12 1 0 1 1 0 8 0 pfstkey 112 30 0 16 1 0 1 1 0 8 0 pfstate 328 28 0 14 3 0 3 3 0 8 0 pfrule 1360 42 0 26 3 1 2 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 434 0 152 19 0 19 19 0 8 1 art_table 32 435 0 152 3 0 3 3 0 8 0 art_node 16 104 0 60 1 0 1 1 0 8 0 sysvmsgpl 40 10 0 4 1 0 1 1 0 8 0 semupl 112 3 0 3 1 1 0 1 0 8 0 semapl 112 11 0 1 1 0 1 1 0 8 0 shmpl 112 26 0 8 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 2346 0 941 89 0 89 89 0 8 0 ffsino 272 2346 0 941 95 0 95 95 0 8 0 nchpl 144 3709 0 2113 60 0 60 60 0 8 0 uvmvnodes 72 2977 0 0 55 0 55 55 0 8 0 vnodes 208 2977 0 0 157 0 157 157 0 8 0 namei 1024 10471 0 10471 4 3 1 1 0 8 1 percpumem 16 45 0 13 1 0 1 1 0 8 0 vcpupl 1984 8 0 0 1 0 1 1 0 8 0 vmpool 560 13 0 5 1 0 1 1 0 8 0 pfiaddrpl 120 16 0 8 1 0 1 1 0 8 0 scsiplug 64 1 0 1 1 1 0 1 0 8 0 scxspl 192 10173 0 10173 11 10 1 7 0 8 1 plimitpl 152 60 0 52 1 0 1 1 0 8 0 sigapl 424 916 0 862 7 0 7 7 0 8 0 futexpl 56 10673 0 10672 3 2 1 1 0 8 0 knotepl 112 121 0 102 1 0 1 1 0 8 0 kqueuepl 144 113 0 111 1 0 1 1 0 8 0 pipepl 304 177 0 167 3 1 2 2 0 8 1 fdescpl 496 879 0 862 3 0 3 3 0 8 0 filepl 152 5510 0 5408 5 0 5 5 0 8 1 lockfpl 104 164 0 162 1 0 1 1 0 8 0 lockfspl 48 55 0 53 1 0 1 1 0 8 0 sessionpl 112 20 0 9 1 0 1 1 0 8 0 pgrppl 48 24 0 13 1 0 1 1 0 8 0 ucredpl 96 470 0 461 1 0 1 1 0 8 0 zombiepl 144 862 0 862 2 1 1 1 0 8 1 processpl 992 916 0 862 7 0 7 7 0 8 0 procpl 624 2440 0 2375 6 0 6 6 0 8 0 sosppl 128 10 0 10 3 2 1 1 0 8 1 sockpl 400 1111 0 1090 5 1 4 4 0 8 1 mcl64k 65536 11 0 0 2 0 2 2 0 8 0 mcl16k 16384 1 0 0 1 0 1 1 0 8 0 mcl12k 12288 8 0 0 1 0 1 1 0 8 0 mcl9k 9216 3 0 0 1 0 1 1 0 8 0 mcl8k 8192 5 0 0 1 0 1 1 0 8 0 mcl4k 4096 13 0 0 2 0 2 2 0 8 0 mcl2k2 2112 3 0 0 1 0 1 1 0 8 0 mcl2k 2048 176 0 0 21 0 21 21 0 8 0 mtagpl 96 47 0 0 2 0 2 2 0 8 0 mbufpl 256 298 0 0 16 0 16 16 0 8 0 bufpl 280 4561 0 132 317 0 317 317 0 8 0 anonpl 16 96071 0 79311 92 20 72 83 0 124 1 amapchunkpl 152 5357 0 5191 13 5 8 12 0 158 1 amappl16 192 4225 0 3288 61 12 49 56 0 8 2 amappl15 184 318 0 315 1 0 1 1 0 8 0 amappl14 176 31 0 25 1 0 1 1 0 8 0 amappl13 168 286 0 280 1 0 1 1 0 8 0 amappl12 160 4 0 4 1 1 0 1 0 8 0 amappl11 152 63 0 48 1 0 1 1 0 8 0 amappl10 144 32 0 25 1 0 1 1 0 8 0 amappl9 136 388 0 387 1 0 1 1 0 8 0 amappl8 128 398 0 360 2 0 2 2 0 8 0 amappl7 120 133 0 121 1 0 1 1 0 8 0 amappl6 112 28 0 21 1 0 1 1 0 8 0 amappl5 104 776 0 758 1 0 1 1 0 8 0 amappl4 96 752 0 724 1 0 1 1 0 8 0 amappl3 88 134 0 128 1 0 1 1 0 8 0 amappl2 80 6355 0 6275 2 0 2 2 0 8 0 amappl1 72 29061 0 28612 23 13 10 18 0 8 0 amappl 80 2706 0 2654 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 28 0 8 1 0 1 1 0 8 0 uaddrrnd 24 892 0 867 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 892 0 867 1 0 1 1 0 8 0 vmmpekpl 168 11128 0 11086 3 0 3 3 0 8 0 vmmpepl 168 114811 0 112587 134 35 99 124 0 357 2 vmsppl 368 891 0 867 3 0 3 3 0 8 0 pdppl 4096 1791 0 1742 9 2 7 7 0 8 0 pvpl 32 290401 0 270626 208 30 178 195 0 265 11 pmappl 232 891 0 867 2 0 2 2 0 8 0 extentpl 40 53 0 36 1 0 1 1 0 8 0 phpool 112 283 0 9 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(ffffffff8278fff0) 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_pc() at __sanitizer_cov_trace_pc+0x24 kd_curproc sys/dev/kcov.c:397 [inline] __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x24 sys/dev/kcov.c:79 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+0x2f kd_curproc sys/dev/kcov.c:411 [inline] __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x2f sys/dev/kcov.c:79 ktrstruct(ffff800020ed3298,ffffffff823eff73,ffff800021ee2748,10) at ktrstruct+0xee sys_clock_gettime(ffff800020ed3298,ffff800021ee27b0,ffff800021ee2800) at sys_clock_gettime+0xfb sys/kern/kern_time.c:171 syscall(ffff800021ee2880) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800021ee2880) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffd3ab0, count: -11 ddb{0}> machine ddbcpu 1 Stopped at soreceive+0x1100: movq %rbx,0x8(%r13) ddb{1}> trace soreceive(fffffd806f684000,0,ffff800020e1e208,0,0,ffff800020e1e114) at soreceive+0x1100 sbsync sys/kern/uipc_socket.c:661 [inline] soreceive(fffffd806f684000,0,ffff800020e1e208,0,0,ffff800020e1e114) at soreceive+0x1100 sys/kern/uipc_socket.c:855 soo_read(fffffd80747f6260,ffff800020e1e208,0) at soo_read+0x53 sys/kern/sys_socket.c:70 dofilereadv(ffff800020ddcea8,6,ffff800020e1e208,0,ffff800020e1e2f0) at dofilereadv+0x1a1 sys/kern/sys_generic.c:237 sys_read(ffff800020ddcea8,ffff800020e1e2a0,ffff800020e1e2f0) at sys_read+0x83 sys/kern/sys_generic.c:157 syscall(ffff800020e1e370) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800020e1e370) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffe0bc0, count: -6