uvm_fault(0xffffffff827b1ca0, 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(0xffffffff827b1ca0, 0xfffffd0000000008, 0, 2) -> e soreceive(fffffd806f68c640,0,ffff800020e1d848,0,0,ffff800020e1d754) at soreceive+0x1100 sbsync sys/kern/uipc_socket.c:661 [inline] soreceive(fffffd806f68c640,0,ffff800020e1d848,0,0,ffff800020e1d754) at soreceive+0x1100 sys/kern/uipc_socket.c:855 end trace frame: 0xffff800020e1d790, count: 0 ddb{0}> trace soreceive(fffffd806f68c640,0,ffff800020e1d848,0,0,ffff800020e1d754) at soreceive+0x1100 sbsync sys/kern/uipc_socket.c:661 [inline] soreceive(fffffd806f68c640,0,ffff800020e1d848,0,0,ffff800020e1d754) at soreceive+0x1100 sys/kern/uipc_socket.c:855 soo_read(fffffd80765f6130,ffff800020e1d848,0) at soo_read+0x53 sys/kern/sys_socket.c:70 dofilereadv(ffff800020ddc758,6,ffff800020e1d848,0,ffff800020e1d930) at dofilereadv+0x1a1 sys/kern/sys_generic.c:237 sys_read(ffff800020ddc758,ffff800020e1d8e0,ffff800020e1d930) at sys_read+0x83 sys/kern/sys_generic.c:157 syscall(ffff800020e1d9b0) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800020e1d9b0) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffe5d90, count: -6 ddb{0}> show registers rdi 0 rsi 0 rbp 0xffff800020e1d730 rbx 0xfffffd80644bfc00 rdx 0x5a570 acpi_pdirpa+0x463d8 rcx 0 rax 0 r8 0xffffffff8235a881 soreceive+0x5c1 r9 0x3 r10 0x5b4c6d82c790b4af r11 0x618a4adcfa6aa9db r12 0x7f4 r13 0xfffffd0000000000 r14 0 r15 0xfffffd806f68c640 rip 0xffffffff8235b3c0 soreceive+0x1100 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff800020e1d640 ss 0x10 soreceive+0x1100: movq %rbx,0x8(%r13) ddb{0}> show proc PROC (dhclient) pid=296977 stat=onproc flags process=0 proc=0 pri=32, usrpri=51, nice=20 forw=0xffffffffffffffff, list=0xffff800020ddcc38,0xffff800020ddceb8 process=0xffff800020df0b98 user=0xffff800020e18000, vmspace=0xfffffd807efff170 estcpu=1, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 29170 201421 0 0 3 0x14200 bored sosplice 95819 120525 240 0 2 0x2 syz-executor.0 240 500951 42300 0 3 0x82 thrsleep syz-fuzzer 240 64871 42300 0 2 0x4000482 syz-fuzzer 240 285618 42300 0 3 0x4000082 thrsleep syz-fuzzer 240 227581 42300 0 7 0x4000002 syz-fuzzer 240 266254 42300 0 3 0x4000082 thrsleep syz-fuzzer 240 131458 42300 0 2 0x4000482 syz-fuzzer 240 69647 42300 0 3 0x4000082 thrsleep syz-fuzzer 240 375334 42300 0 3 0x4000082 thrsleep syz-fuzzer 240 75278 42300 0 3 0x4000082 thrsleep syz-fuzzer 240 123884 42300 0 3 0x4000082 thrsleep syz-fuzzer 42300 112975 68222 0 3 0x10008a pause ksh 68222 458054 70595 0 3 0x92 select sshd 63313 469546 1 0 3 0x100083 ttyin getty 70595 64012 1 0 3 0x80 select sshd 68717 173119 69526 74 3 0x100092 bpf pflogd 69526 301605 1 0 3 0x80 netio pflogd 60889 10769 1673 73 3 0x100090 kqread syslogd 1673 183491 1 0 3 0x100082 netio syslogd 78637 27970 1 77 3 0x100090 poll dhclient *83388 296977 1 0 7 0 dhclient 14004 254726 0 0 3 0x14200 bored smr 66240 232108 0 0 2 0x14200 zerothread 82568 131319 0 0 3 0x14200 aiodoned aiodoned 19055 350878 0 0 3 0x14200 syncer update 64567 264783 0 0 3 0x14200 cleaner cleaner 92174 172931 0 0 3 0x14200 reaper reaper 25086 232679 0 0 3 0x14200 pgdaemon pagedaemon 75167 200292 0 0 3 0x14200 bored crynlk 71521 258926 0 0 3 0x14200 bored crypto 83299 57378 0 0 3 0x40014200 acpi0 acpi0 92902 486673 0 0 3 0x40014200 idle1 12127 355928 0 0 3 0x14200 bored softnet 12865 518889 0 0 3 0x14200 bored systqmp 33845 358145 0 0 3 0x14200 bored systq 99605 198927 0 0 3 0x40014200 bored softclock 2024 320077 0 0 3 0x40014200 idle0 1 132493 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 95819 (syz-executor.0) thread 0xffff800020dddd48 (120525) exclusive rrwlock inode r = 0 (0xfffffd80684a1d60) #0 witness_lock+0x4c7 stacktrace_save sys/sys/stacktrace.h:36 [inline] #0 witness_lock+0x4c7 sys/kern/subr_witness.c:1164 #1 rw_enter+0x453 sys/kern/kern_rwlock.c:311 #2 rrw_enter+0x88 sys/kern/kern_rwlock.c:462 #3 VOP_LOCK+0x4b sys/kern/vfs_vops.c:603 #4 vn_lock+0x81 sys/kern/vfs_vnops.c:575 #5 vget+0x1c8 sys/kern/vfs_subr.c:671 #6 ufs_ihashget+0x141 sys/ufs/ufs/ufs_ihash.c:119 #7 ffs_vget+0x74 sys/ufs/ffs/ffs_vfsops.c:1329 #8 ufs_lookup+0x14b7 sys/ufs/ufs/ufs_lookup.c:487 #9 VOP_LOOKUP+0x5b sys/kern/vfs_vops.c:90 #10 vfs_lookup+0x7a6 sys/kern/vfs_lookup.c:568 #11 namei+0x63c sys/kern/vfs_lookup.c:249 #12 dounlinkat+0x99 sys/kern/vfs_syscalls.c:1853 #13 syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] #13 syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 #14 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd80684a1920) #0 witness_lock+0x4c7 stacktrace_save sys/sys/stacktrace.h:36 [inline] #0 witness_lock+0x4c7 sys/kern/subr_witness.c:1164 #1 rw_enter+0x453 sys/kern/kern_rwlock.c:311 #2 rrw_enter+0x88 sys/kern/kern_rwlock.c:462 #3 VOP_LOCK+0x4b sys/kern/vfs_vops.c:603 #4 vn_lock+0x81 sys/kern/vfs_vnops.c:575 #5 vfs_lookup+0xe6 sys/kern/vfs_lookup.c:419 #6 namei+0x63c sys/kern/vfs_lookup.c:249 #7 dounlinkat+0x99 sys/kern/vfs_syscalls.c:1853 #8 syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] #8 syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 #9 Xsyscall+0x128 Process 240 (syz-fuzzer) thread 0xffff800020e41390 (227581) exclusive rwlock pipelk r = 0 (0xfffffd806f81f700) #0 witness_lock+0x4c7 stacktrace_save sys/sys/stacktrace.h:36 [inline] #0 witness_lock+0x4c7 sys/kern/subr_witness.c:1164 #1 pipe_write+0x361 sys/kern/sys_pipe.c:559 #2 dofilewritev+0x1b6 sys/kern/sys_generic.c:365 #3 sys_write+0x83 sys/kern/sys_generic.c:285 #4 syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] #4 syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 #5 Xsyscall+0x128 Process 83388 (dhclient) thread 0xffff800020ddc758 (296977) exclusive kernel_lock &kernel_lock r = 1 (0xffffffff8292aa38) #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 9481 6400K 6983K 78643K 11033 0 pcb 13 8K 8K 78643K 45 0 rtable 58 3K 7K 78643K 282 0 ifaddr 43 10K 12K 78643K 68 0 counters 41 33K 33K 78643K 43 0 ioctlops 0 0K 4K 78643K 1488 0 iov 0 0K 12K 78643K 16 0 mount 1 1K 1K 78643K 1 0 vnodes 1224 77K 77K 78643K 1338 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 4 0 VM map 2 1K 1K 78643K 2 0 sem 12 0K 0K 78643K 24 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1824 197K 290K 78643K 13058 0 file desc 3 5K 25K 78643K 141 0 proc 60 63K 95K 78643K 439 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 11 0 in_multi 31 2K 2K 78643K 59 0 ether_multi 1 0K 0K 78643K 5 0 mrt 0 0K 0K 78643K 12 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 215 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 106 14K 26K 78643K 1412 0 UVM aobj 6 2K 2K 78643K 6 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 12 0 NDP 6 0K 0K 78643K 12 0 temp 58 3856K 3921K 78643K 3261 0 kqueue 3 4K 6K 78643K 14 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 7 0 3 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 80 26 0 24 1 0 1 1 0 8 0 rtentry 112 57 0 39 2 0 2 2 0 8 0 unpcb 120 112 0 101 1 0 1 1 0 8 0 syncache 264 4 0 4 1 1 0 1 0 8 0 tcpqe 32 1326 0 1326 1 1 0 1 0 8 0 tcpcb 544 48 0 44 1 0 1 1 0 8 0 inpcb 296 176 0 169 2 0 2 2 0 8 1 rttmr 72 5 0 5 1 0 1 1 0 8 1 nd6 48 8 0 7 1 0 1 1 0 8 0 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 19 0 17 1 0 1 1 0 8 0 pfstitem 24 20 0 2 1 0 1 1 0 8 0 pfstkey 112 20 0 2 1 0 1 1 0 8 0 pfstate 328 20 0 2 2 0 2 2 0 8 0 pfrule 1360 27 0 20 2 1 1 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 277 0 191 12 0 12 12 0 8 4 art_table 32 278 0 191 2 0 2 2 0 8 0 art_node 16 56 0 41 1 0 1 1 0 8 0 sysvmsgpl 40 4 0 1 1 0 1 1 0 8 0 semupl 112 1 0 1 1 0 1 1 0 8 1 semapl 112 22 0 12 1 0 1 1 0 8 0 shmpl 112 4 0 0 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1577 0 169 89 0 89 89 0 8 0 ffsino 272 1577 0 169 95 1 94 94 0 8 0 nchpl 144 2007 0 408 60 0 60 60 0 8 0 uvmvnodes 72 1722 0 0 32 0 32 32 0 8 0 vnodes 208 1722 0 0 91 0 91 91 0 8 0 namei 1024 5480 0 5480 2 1 1 1 0 8 1 percpumem 16 32 0 1 1 0 1 1 0 8 0 pfiaddrpl 120 5 0 5 1 0 1 1 0 8 1 scxspl 192 5943 0 5943 8 5 3 7 0 8 3 plimitpl 152 22 0 15 1 0 1 1 0 8 0 sigapl 424 357 0 327 4 0 4 4 0 8 0 futexpl 56 2122 0 2122 1 0 1 1 0 8 1 knotepl 112 70 0 53 1 0 1 1 0 8 0 kqueuepl 144 38 0 36 1 0 1 1 0 8 0 pipepl 304 99 0 90 2 0 2 2 0 8 1 fdescpl 496 341 0 327 3 0 3 3 0 8 0 filepl 152 2018 0 1939 8 1 7 7 0 8 3 lockfpl 104 34 0 33 1 0 1 1 0 8 0 lockfspl 48 14 0 13 1 0 1 1 0 8 0 sessionpl 112 18 0 8 1 0 1 1 0 8 0 pgrppl 48 22 0 12 1 0 1 1 0 8 0 ucredpl 96 146 0 137 1 0 1 1 0 8 0 zombiepl 144 327 0 327 2 1 1 1 0 8 1 processpl 984 357 0 327 6 1 5 5 0 8 0 procpl 624 641 0 602 4 0 4 4 0 8 0 sosppl 128 2 0 2 1 0 1 1 0 8 1 sockpl 400 314 0 294 5 1 4 4 0 8 1 mcl64k 65536 2 0 0 1 0 1 1 0 8 0 mcl16k 16384 1 0 0 1 0 1 1 0 8 0 mcl12k 12288 1 0 0 1 0 1 1 0 8 0 mcl8k 8192 3 0 0 1 0 1 1 0 8 0 mcl4k 4096 4 0 0 1 0 1 1 0 8 0 mcl2k2 2112 1 0 0 1 0 1 1 0 8 0 mcl2k 2048 228 0 0 28 0 28 28 0 8 0 mtagpl 96 61 0 0 2 0 2 2 0 8 0 mbufpl 256 427 0 0 26 0 26 26 0 8 0 bufpl 280 3690 0 135 254 0 254 254 0 8 0 anonpl 16 47158 0 30383 69 1 68 68 0 124 0 amapchunkpl 152 1805 0 1646 9 0 9 9 0 158 0 amappl16 192 1521 0 635 45 0 45 45 0 8 0 amappl15 184 1 0 0 1 0 1 1 0 8 0 amappl14 176 73 0 69 1 0 1 1 0 8 0 amappl13 168 29 0 27 1 0 1 1 0 8 0 amappl12 160 9 0 6 1 0 1 1 0 8 0 amappl11 152 102 0 87 1 0 1 1 0 8 0 amappl10 144 17 0 12 1 0 1 1 0 8 0 amappl9 136 389 0 387 1 0 1 1 0 8 0 amappl8 128 333 0 307 2 1 1 2 0 8 0 amappl7 120 128 0 115 1 0 1 1 0 8 0 amappl6 112 78 0 73 1 0 1 1 0 8 0 amappl5 104 192 0 176 1 0 1 1 0 8 0 amappl4 96 544 0 510 1 0 1 1 0 8 0 amappl3 88 103 0 98 1 0 1 1 0 8 0 amappl2 80 1774 0 1715 2 0 2 2 0 8 0 amappl1 72 17395 0 16972 23 13 10 18 0 8 0 amappl 80 900 0 858 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 5 0 0 1 0 1 1 0 8 0 uaddrrnd 24 341 0 327 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 341 0 327 1 0 1 1 0 8 0 vmmpekpl 168 6761 0 6731 2 0 2 2 0 8 0 vmmpepl 168 48503 0 46636 128 12 116 118 0 357 28 vmsppl 368 340 0 327 2 0 2 2 0 8 0 pdppl 4096 689 0 654 7 1 6 6 0 8 1 pvpl 32 162409 0 142634 164 0 164 164 0 265 1 pmappl 232 340 0 327 2 1 1 2 0 8 0 extentpl 40 53 0 36 1 0 1 1 0 8 0 phpool 112 283 0 7 8 0 8 8 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace soreceive(fffffd806f68c640,0,ffff800020e1d848,0,0,ffff800020e1d754) at soreceive+0x1100 sbsync sys/kern/uipc_socket.c:661 [inline] soreceive(fffffd806f68c640,0,ffff800020e1d848,0,0,ffff800020e1d754) at soreceive+0x1100 sys/kern/uipc_socket.c:855 soo_read(fffffd80765f6130,ffff800020e1d848,0) at soo_read+0x53 sys/kern/sys_socket.c:70 dofilereadv(ffff800020ddc758,6,ffff800020e1d848,0,ffff800020e1d930) at dofilereadv+0x1a1 sys/kern/sys_generic.c:237 sys_read(ffff800020ddc758,ffff800020e1d8e0,ffff800020e1d930) at sys_read+0x83 sys/kern/sys_generic.c:157 syscall(ffff800020e1d9b0) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800020e1d9b0) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffe5d90, 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(ffffffff8292a830) at __mp_lock+0x127 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff8292a830) at __mp_lock+0x127 sys/kern/kern_lock.c:147 selwakeup(fffffd806f81f690) at selwakeup+0x16 sys/kern/sys_generic.c:776 pipeselwakeup(fffffd806f81f670) at pipeselwakeup+0x76 sys/kern/sys_pipe.c:369 pipe_write(fffffd806eae9988,ffff800020e8fa48,0) at pipe_write+0x74e sys/kern/sys_pipe.c:658 dofilewritev(ffff800020e41390,1,ffff800020e8fa48,0,ffff800020e8fb30) at dofilewritev+0x1b6 sys/kern/sys_generic.c:365 sys_write(ffff800020e41390,ffff800020e8fae0,ffff800020e8fb30) at sys_write+0x83 sys/kern/sys_generic.c:285 syscall(ffff800020e8fbb0) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800020e8fbb0) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xc00365d948, count: -11