uvm_fault(0xffffffff827d8a30, 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(0xffffffff827d8a30, 0xfffffd0000000008, 0, 2) -> e soreceive(fffffd806f6894b0,0,ffff800020e1d898,0,0,ffff800020e1d7a4) at soreceive+0x1100 sbsync sys/kern/uipc_socket.c:661 [inline] soreceive(fffffd806f6894b0,0,ffff800020e1d898,0,0,ffff800020e1d7a4) at soreceive+0x1100 sys/kern/uipc_socket.c:855 end trace frame: 0xffff800020e1d7e0, count: 0 ddb{1}> trace soreceive(fffffd806f6894b0,0,ffff800020e1d898,0,0,ffff800020e1d7a4) at soreceive+0x1100 sbsync sys/kern/uipc_socket.c:661 [inline] soreceive(fffffd806f6894b0,0,ffff800020e1d898,0,0,ffff800020e1d7a4) at soreceive+0x1100 sys/kern/uipc_socket.c:855 soo_read(fffffd80769f6558,ffff800020e1d898,0) at soo_read+0x53 sys/kern/sys_socket.c:70 dofilereadv(ffff800020ddc758,6,ffff800020e1d898,0,ffff800020e1d980) at dofilereadv+0x1a1 sys/kern/sys_generic.c:237 sys_read(ffff800020ddc758,ffff800020e1d930,ffff800020e1d980) at sys_read+0x83 sys/kern/sys_generic.c:157 syscall(ffff800020e1da00) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800020e1da00) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffe5d30, count: -6 ddb{1}> show registers rdi 0 rsi 0 rbp 0xffff800020e1d780 rbx 0xfffffd8063dbe200 rdx 0x3301e acpi_pdirpa+0x1ee86 rcx 0 rax 0 r8 0xffffffff823210f1 soreceive+0x5c1 r9 0x3 r10 0x1fb34e214a56fc2f r11 0x591fefe9741eae16 r12 0x184 r13 0xfffffd0000000000 r14 0 r15 0xfffffd806f6894b0 rip 0xffffffff82321c30 soreceive+0x1100 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff800020e1d690 ss 0x10 soreceive+0x1100: movq %rbx,0x8(%r13) ddb{1}> show proc PROC (dhclient) pid=121410 stat=onproc flags process=0 proc=0 pri=24, usrpri=50, nice=20 forw=0xffffffffffffffff, list=0xffff800020ddcc38,0xffff800020ddceb8 process=0xffff800020df07c0 user=0xffff800020e18000, vmspace=0xfffffd807efff2e0 estcpu=0, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 56035 255904 74724 0 7 0 syz-executor.1 56035 66028 74724 0 3 0x4000080 fsleep syz-executor.1 87071 431279 0 0 3 0x14200 bored sosplice 74724 186606 45563 0 3 0x82 nanosleep syz-executor.1 38981 460417 45563 0 3 0x2 biowait syz-executor.0 45563 386870 49083 0 3 0x82 thrsleep syz-fuzzer 45563 272997 49083 0 3 0x4000082 nanosleep syz-fuzzer 45563 398486 49083 0 3 0x4000082 thrsleep syz-fuzzer 45563 380367 49083 0 3 0x4000082 thrsleep syz-fuzzer 45563 260609 49083 0 3 0x4000082 kqread syz-fuzzer 45563 125469 49083 0 3 0x4000082 thrsleep syz-fuzzer 45563 357132 49083 0 3 0x4000082 thrsleep syz-fuzzer 45563 165594 49083 0 3 0x4000082 thrsleep syz-fuzzer 45563 256519 49083 0 3 0x4000082 thrsleep syz-fuzzer 45563 426326 49083 0 3 0x4000082 thrsleep syz-fuzzer 49083 262342 76499 0 3 0x10008a pause ksh 76499 161950 14254 0 3 0x92 select sshd 68306 215504 1 0 3 0x100083 ttyin getty 14254 290676 1 0 3 0x80 select sshd 5530 523085 8058 74 3 0x100092 bpf pflogd 8058 435427 1 0 3 0x80 netio pflogd 48012 317164 83011 73 3 0x100090 kqread syslogd 83011 504680 1 0 3 0x100082 netio syslogd 25038 427148 1 77 3 0x100090 poll dhclient *70077 121410 1 0 7 0 dhclient 69734 279324 0 0 3 0x14200 bored smr 83511 63455 0 0 3 0x14200 pgzero zerothread 61388 128971 0 0 3 0x14200 aiodoned aiodoned 41931 161353 0 0 3 0x14200 syncer update 9137 411181 0 0 3 0x14200 cleaner cleaner 8962 88378 0 0 3 0x14200 reaper reaper 88799 391385 0 0 3 0x14200 pgdaemon pagedaemon 65535 123858 0 0 3 0x14200 bored crynlk 24166 162562 0 0 3 0x14200 bored crypto 92049 360913 0 0 3 0x40014200 acpi0 acpi0 5865 435885 0 0 3 0x40014200 idle1 9101 42042 0 0 3 0x14200 bored softnet 64480 488842 0 0 3 0x14200 bored systqmp 54183 453144 0 0 3 0x14200 bored systq 68380 182913 0 0 3 0x40014200 bored softclock 16129 518159 0 0 3 0x40014200 idle0 1 489569 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 38981 (syz-executor.0) thread 0xffff800020dddd48 (460417) exclusive rrwlock inode r = 0 (0xfffffd8068851d60) #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 ufs_ihashins+0x45 sys/ufs/ufs/ufs_ihash.c:140 #4 ffs_vget+0x13e sys/ufs/ffs/ffs_vfsops.c:1358 #5 ffs_inode_alloc+0x1e2 sys/ufs/ffs/ffs_alloc.c:394 #6 ufs_mkdir+0xf4 sys/ufs/ufs/ufs_vnops.c:1162 #7 VOP_MKDIR+0xc6 sys/kern/vfs_vops.c:450 #8 domkdirat+0x121 sys/kern/vfs_syscalls.c:3051 #9 syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] #9 syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 #10 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd8068851810) #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 domkdirat+0x75 sys/kern/vfs_syscalls.c:3036 #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 70077 (dhclient) thread 0xffff800020ddc758 (121410) exclusive kernel_lock &kernel_lock r = 1 (0xffffffff828ac7e0) #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 9497 6408K 6664K 78643K 10797 0 pcb 14 8K 8K 78643K 54 0 rtable 98 4K 4K 78643K 237 0 ifaddr 59 12K 13K 78643K 73 0 counters 43 33K 33K 78643K 43 0 ioctlops 0 0K 4K 78643K 1489 0 iov 0 0K 16K 78643K 31 0 mount 1 1K 1K 78643K 1 0 vnodes 1217 77K 77K 78643K 1296 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 7 0 VM map 2 1K 1K 78643K 2 0 sem 12 0K 0K 78643K 79 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1824 197K 290K 78643K 13058 0 file desc 5 13K 25K 78643K 229 0 sigio 0 0K 0K 78643K 12 0 proc 61 63K 95K 78643K 463 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 21 0 in_multi 45 2K 2K 78643K 76 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 43 201K 201K 78643K 43 0 exec 0 0K 1K 78643K 213 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 71K 78643K 1640 0 UVM aobj 19 2K 2K 78643K 23 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 18 0 NDP 9 0K 0K 78643K 15 0 temp 89 3860K 3927K 78643K 8332 0 kqueue 3 4K 12K 78643K 16 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 7 0 2 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 80 39 0 37 1 0 1 1 0 8 0 rtentry 112 54 0 16 2 0 2 2 0 8 0 unpcb 120 339 0 329 1 0 1 1 0 8 0 syncache 264 6 0 6 2 1 1 1 0 8 1 tcpqe 32 154 0 154 2 1 1 1 0 8 1 tcpcb 544 64 0 60 1 0 1 1 0 8 0 inpcb 296 232 0 223 3 1 2 2 0 8 1 nd6 48 10 0 6 1 0 1 1 0 8 0 pkpcb 40 3 0 3 1 0 1 1 0 8 1 pfstscr 40 4 0 4 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 3 0 3 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 3 0 1 1 0 1 1 0 8 0 pfstitem 24 42 0 5 1 0 1 1 0 8 0 pfstkey 112 44 0 7 2 0 2 2 0 8 0 pfstate 328 41 0 5 3 0 3 3 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 256 244 0 75 13 0 13 13 0 8 2 art_table 32 245 0 75 2 0 2 2 0 8 0 art_node 16 53 0 18 1 0 1 1 0 8 0 sysvmsgpl 40 6 0 3 1 0 1 1 0 8 0 semapl 112 77 0 67 1 0 1 1 0 8 0 shmpl 112 21 0 4 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1714 0 312 89 0 89 89 0 8 1 ffsino 272 1714 0 312 95 1 94 94 0 8 0 nchpl 144 2225 0 616 60 0 60 60 0 8 0 uvmvnodes 72 1810 0 0 33 0 33 33 0 8 0 vnodes 208 1810 0 0 96 0 96 96 0 8 0 namei 1024 6036 0 6035 2 1 1 1 0 8 0 percpumem 16 32 0 0 1 0 1 1 0 8 0 vcpupl 1984 3 0 0 1 0 1 1 0 8 0 vmpool 560 3 0 0 1 0 1 1 0 8 0 pfiaddrpl 120 2 0 0 1 0 1 1 0 8 0 scsiplug 64 1 0 1 1 0 1 1 0 8 1 scxspl 192 6758 0 6757 8 7 1 7 0 8 0 plimitpl 152 32 0 24 1 0 1 1 0 8 0 sigapl 424 445 0 413 4 0 4 4 0 8 0 futexpl 56 3361 0 3360 1 0 1 1 0 8 0 knotepl 112 82 0 63 1 0 1 1 0 8 0 kqueuepl 144 34 0 32 1 0 1 1 0 8 0 pipelkpl 48 102 0 92 1 0 1 1 0 8 0 pipepl 120 204 0 185 1 0 1 1 0 8 0 fdescpl 496 429 0 413 3 0 3 3 0 8 0 filepl 152 2548 0 2447 6 1 5 5 0 8 1 lockfpl 104 56 0 55 1 0 1 1 0 8 0 lockfspl 48 22 0 21 1 0 1 1 0 8 0 sessionpl 112 18 0 7 1 0 1 1 0 8 0 pgrppl 48 18 0 7 1 0 1 1 0 8 0 ucredpl 96 259 0 250 1 0 1 1 0 8 0 zombiepl 144 413 0 413 2 1 1 1 0 8 1 processpl 984 445 0 413 6 1 5 5 0 8 0 procpl 624 866 0 824 4 0 4 4 0 8 0 sosppl 128 2 0 2 1 0 1 1 0 8 1 sockpl 400 613 0 593 6 2 4 4 0 8 2 mcl64k 65536 6 0 0 1 0 1 1 0 8 0 mcl16k 16384 2 0 0 1 0 1 1 0 8 0 mcl12k 12288 2 0 0 1 0 1 1 0 8 0 mcl9k 9216 2 0 0 1 0 1 1 0 8 0 mcl8k 8192 3 0 0 1 0 1 1 0 8 0 mcl4k 4096 5 0 0 1 0 1 1 0 8 0 mcl2k2 2112 2 0 0 1 0 1 1 0 8 0 mcl2k 2048 171 0 0 21 0 21 21 0 8 0 mtagpl 96 14 0 0 1 0 1 1 0 8 0 mbufpl 256 370 0 0 22 0 22 22 0 8 0 bufpl 280 3899 0 133 269 0 269 269 0 8 0 anonpl 16 57141 0 40286 86 1 85 85 0 124 17 amapchunkpl 152 2551 0 2401 20 0 20 20 0 158 12 amappl16 192 1922 0 1017 58 4 54 58 0 8 8 amappl15 184 103 0 100 1 0 1 1 0 8 0 amappl14 176 121 0 113 1 0 1 1 0 8 0 amappl13 168 28 0 25 1 0 1 1 0 8 0 amappl12 160 105 0 102 1 0 1 1 0 8 0 amappl11 152 152 0 136 1 0 1 1 0 8 0 amappl10 144 23 0 16 1 0 1 1 0 8 0 amappl9 136 384 0 383 1 0 1 1 0 8 0 amappl8 128 343 0 313 1 0 1 1 0 8 0 amappl7 120 117 0 105 1 0 1 1 0 8 0 amappl6 112 22 0 19 2 1 1 1 0 8 0 amappl5 104 237 0 221 1 0 1 1 0 8 0 amappl4 96 582 0 554 1 0 1 1 0 8 0 amappl3 88 204 0 197 1 0 1 1 0 8 0 amappl2 80 2593 0 2521 2 0 2 2 0 8 0 amappl1 72 19121 0 18676 23 13 10 18 0 8 0 amappl 80 1120 0 1074 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 22 0 4 1 0 1 1 0 8 0 uaddrrnd 24 432 0 413 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 432 0 413 1 0 1 1 0 8 0 vmmpekpl 168 6995 0 6957 2 0 2 2 0 8 0 vmmpepl 168 59124 0 57048 125 19 106 110 0 357 11 vmsppl 368 431 0 413 2 0 2 2 0 8 0 pdppl 4096 871 0 829 7 1 6 6 0 8 0 pvpl 32 181315 0 161574 194 1 193 193 0 265 32 pmappl 232 431 0 413 3 1 2 2 0 8 0 extentpl 40 53 0 36 1 0 1 1 0 8 0 phpool 112 274 0 8 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(ffffffff826f8ff0) 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(ffffffff828ac5d8) at __mp_lock+0x127 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff828ac5d8) at __mp_lock+0x127 sys/kern/kern_lock.c:147 intr_handler(ffff8000230fbc00,ffff80000004a400) at intr_handler+0x5e sys/arch/amd64/amd64/intr.c:532 Xintr_ioapic_edge17_untramp() at Xintr_ioapic_edge17_untramp+0x19f __mp_lock(ffffffff828ac5d8) at __mp_lock+0x127 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff828ac5d8) at __mp_lock+0x127 sys/kern/kern_lock.c:147 pageflttrap(ffff8000230fbde0,1) at pageflttrap+0x7f sys/arch/amd64/amd64/trap.c:180 usertrap(ffff8000230fbde0) at usertrap+0x21a sys/arch/amd64/amd64/trap.c:384 recall_trap() at recall_trap+0x8 end of kernel end trace frame: 0x7f7ffffe1750, count: -10 ddb{0}> machine ddbcpu 1 Stopped at soreceive+0x1100: movq %rbx,0x8(%r13) ddb{1}> trace soreceive(fffffd806f6894b0,0,ffff800020e1d898,0,0,ffff800020e1d7a4) at soreceive+0x1100 sbsync sys/kern/uipc_socket.c:661 [inline] soreceive(fffffd806f6894b0,0,ffff800020e1d898,0,0,ffff800020e1d7a4) at soreceive+0x1100 sys/kern/uipc_socket.c:855 soo_read(fffffd80769f6558,ffff800020e1d898,0) at soo_read+0x53 sys/kern/sys_socket.c:70 dofilereadv(ffff800020ddc758,6,ffff800020e1d898,0,ffff800020e1d980) at dofilereadv+0x1a1 sys/kern/sys_generic.c:237 sys_read(ffff800020ddc758,ffff800020e1d930,ffff800020e1d980) at sys_read+0x83 sys/kern/sys_generic.c:157 syscall(ffff800020e1da00) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800020e1da00) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffe5d30, count: -6