uvm_fault(0xffffffff827fad80, 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(0xffffffff827fad80, 0xfffffd0000000008, 0, 2) -> e soreceive(fffffd806f6864b0,0,ffff800020e1d9e8,0,0,ffff800020e1d8f4) at soreceive+0x1100 sbsync sys/kern/uipc_socket.c:661 [inline] soreceive(fffffd806f6864b0,0,ffff800020e1d9e8,0,0,ffff800020e1d8f4) at soreceive+0x1100 sys/kern/uipc_socket.c:855 end trace frame: 0xffff800020e1d930, count: 0 ddb{1}> trace soreceive(fffffd806f6864b0,0,ffff800020e1d9e8,0,0,ffff800020e1d8f4) at soreceive+0x1100 sbsync sys/kern/uipc_socket.c:661 [inline] soreceive(fffffd806f6864b0,0,ffff800020e1d9e8,0,0,ffff800020e1d8f4) at soreceive+0x1100 sys/kern/uipc_socket.c:855 soo_read(fffffd8079ff7390,ffff800020e1d9e8,0) at soo_read+0x53 sys/kern/sys_socket.c:70 dofilereadv(ffff800020ddc758,6,ffff800020e1d9e8,0,ffff800020e1dad0) at dofilereadv+0x1a1 sys/kern/sys_generic.c:237 sys_read(ffff800020ddc758,ffff800020e1da80,ffff800020e1dad0) at sys_read+0x83 sys/kern/sys_generic.c:157 syscall(ffff800020e1db50) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800020e1db50) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffe5f20, count: -6 ddb{1}> show registers rdi 0 rsi 0 rbp 0xffff800020e1d8d0 rbx 0xfffffd8061cab000 rdx 0x347de acpi_pdirpa+0x20646 rcx 0 rax 0 r8 0xffffffff81800901 soreceive+0x5c1 r9 0x3 r10 0xf6def92c2e950bd2 r11 0x90c934ea6b4beb22 r12 0x440 r13 0xfffffd0000000000 r14 0 r15 0xfffffd806f6864b0 rip 0xffffffff81801440 soreceive+0x1100 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff800020e1d7e0 ss 0x10 soreceive+0x1100: movq %rbx,0x8(%r13) ddb{1}> show proc PROC (dhclient) pid=372372 stat=onproc flags process=0 proc=0 pri=50, usrpri=50, nice=20 forw=0xffffffffffffffff, list=0xffff800020ddd5f8,0xffff800020ddc9d8 process=0xffff800020df03e8 user=0xffff800020e18000, vmspace=0xfffffd807f000450 estcpu=0, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 39901 349340 61091 0 2 0 syz-executor.1 39901 321090 61091 0 2 0x4000080 syz-executor.1 39901 92022 61091 0 2 0x4000080 syz-executor.1 63705 327007 0 0 3 0x14200 bored sosplice 61091 246197 98614 0 3 0x82 nanosleep syz-executor.1 73649 265962 98614 0 3 0x2 biowait syz-executor.0 98614 17325 93943 0 3 0x82 thrsleep syz-fuzzer 98614 15193 93943 0 3 0x4000082 nanosleep syz-fuzzer 98614 159236 93943 0 3 0x4000082 thrsleep syz-fuzzer 98614 494944 93943 0 7 0x4000002 syz-fuzzer 98614 94065 93943 0 3 0x4000082 thrsleep syz-fuzzer 98614 5596 93943 0 3 0x4000082 thrsleep syz-fuzzer 98614 233582 93943 0 3 0x4000082 thrsleep syz-fuzzer 98614 2354 93943 0 3 0x4000082 thrsleep syz-fuzzer 98614 364039 93943 0 3 0x4000082 thrsleep syz-fuzzer 98614 39961 93943 0 3 0x4000082 thrsleep syz-fuzzer 93943 40093 319 0 3 0x10008a pause ksh 319 487057 41551 0 3 0x92 select sshd 84003 202539 1 0 3 0x100083 ttyin getty 41551 152805 1 0 3 0x80 select sshd 29985 302595 537 74 3 0x100092 bpf pflogd 537 394019 1 0 3 0x80 netio pflogd 94769 66437 98762 73 3 0x100090 kqread syslogd 98762 188193 1 0 3 0x100082 netio syslogd 22486 260236 1 77 3 0x100090 poll dhclient *67615 372372 1 0 7 0 dhclient 32946 234370 0 0 3 0x14200 bored smr 4266 243091 0 0 2 0x14200 zerothread 87443 172918 0 0 3 0x14200 aiodoned aiodoned 41765 489164 0 0 3 0x14200 syncer update 88875 190544 0 0 3 0x14200 cleaner cleaner 18585 55332 0 0 3 0x14200 reaper reaper 76052 470274 0 0 3 0x14200 pgdaemon pagedaemon 18813 116732 0 0 3 0x14200 bored crynlk 44526 77557 0 0 3 0x14200 bored crypto 7898 413373 0 0 3 0x40014200 acpi0 acpi0 67378 156217 0 0 3 0x40014200 idle1 43146 262314 0 0 3 0x14200 bored softnet 34096 13407 0 0 3 0x14200 bored systqmp 79639 259879 0 0 3 0x14200 bored systq 4919 95345 0 0 3 0x40014200 bored softclock 68496 246665 0 0 3 0x40014200 idle0 1 248746 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 73649 (syz-executor.0) thread 0xffff800020ddd388 (265962) exclusive rrwlock inode r = 0 (0xfffffd806868ca30) #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 (0xfffffd806868c5f0) #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 98614 (syz-fuzzer) thread 0xffff800020e41ae0 (494944) exclusive rwlock pipelk r = 0 (0xfffffd806f789700) #0 witness_lock+0x4c7 stacktrace_save sys/sys/stacktrace.h:36 [inline] #0 witness_lock+0x4c7 sys/kern/subr_witness.c:1164 #1 pipe_read+0x185 sys/kern/sys_pipe.c:402 #2 dofilereadv+0x1a1 sys/kern/sys_generic.c:237 #3 sys_read+0x83 sys/kern/sys_generic.c:157 #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 67615 (dhclient) thread 0xffff800020ddc758 (372372) exclusive kernel_lock &kernel_lock r = 1 (0xffffffff828b04d8) #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 9512 6491K 7309K 78643K 12450 0 pcb 13 8K 8K 78643K 57 0 rtable 122 8K 11K 78643K 328 0 ifaddr 69 14K 15K 78643K 113 0 sysctl 2 0K 0K 78643K 2 0 counters 43 33K 34K 78643K 53 0 ioctlops 0 0K 4K 78643K 1538 0 iov 0 0K 16K 78643K 43 0 mount 1 1K 1K 78643K 1 0 vnodes 1222 77K 77K 78643K 1659 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 103 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1824 197K 290K 78643K 13058 0 file desc 5 13K 25K 78643K 451 0 sigio 0 0K 0K 78643K 2 0 proc 61 63K 83K 78643K 476 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 31 0 in_multi 36 2K 2K 78643K 108 0 ether_multi 1 0K 0K 78643K 9 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 226 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 141 88K 93K 78643K 2491 0 UVM aobj 7 2K 2K 78643K 8 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 42 0 NDP 10 0K 0K 78643K 27 0 temp 92 3860K 3924K 78643K 11506 0 kqueue 3 4K 9K 78643K 13 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 8 0 1 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 80 31 0 29 1 0 1 1 0 8 0 rtentry 112 65 0 23 2 0 2 2 0 8 0 unpcb 120 195 0 185 1 0 1 1 0 8 0 syncache 264 10 0 10 3 2 1 1 0 8 1 tcpqe 32 584 0 584 1 1 0 1 0 8 0 tcpcb 544 146 0 142 2 1 1 2 0 8 0 inpcb 296 542 0 535 3 1 2 2 0 8 1 nd6 48 18 0 14 1 0 1 1 0 8 0 pkpcb 40 4 0 4 2 2 0 1 0 8 0 ppxss 1128 4 0 4 3 2 1 1 0 8 1 pffrag 232 1 0 1 1 1 0 1 0 482 0 pffrnode 88 1 0 1 1 1 0 1 0 8 0 pffrent 40 3 0 3 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 20 0 11 2 0 2 2 0 8 1 pfstitem 24 13 0 11 1 0 1 1 0 8 0 pfstkey 112 13 0 11 1 0 1 1 0 8 0 pfstate 328 13 0 11 2 1 1 2 0 8 0 pfrule 1360 34 0 19 3 1 2 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 222 0 42 13 0 13 13 0 8 0 art_table 32 223 0 42 2 0 2 2 0 8 0 art_node 16 64 0 25 1 0 1 1 0 8 0 sysvmsgpl 40 4 0 0 1 0 1 1 0 8 0 semapl 112 101 0 91 1 0 1 1 0 8 0 shmpl 112 6 0 2 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1946 0 542 89 0 89 89 0 8 0 ffsino 272 1946 0 542 96 2 94 95 0 8 0 nchpl 144 2697 0 1088 60 0 60 60 0 8 0 uvmvnodes 72 2398 0 0 44 0 44 44 0 8 0 vnodes 208 2398 0 0 127 0 127 127 0 8 0 namei 1024 7697 0 7696 3 2 1 1 0 8 0 percpumem 16 37 0 5 1 0 1 1 0 8 0 vcpupl 1984 8 0 0 1 0 1 1 0 8 0 vmpool 560 9 0 1 1 0 1 1 0 8 0 pfiaddrpl 120 9 0 3 1 0 1 1 0 8 0 scxspl 192 8544 0 8543 11 10 1 7 0 8 0 plimitpl 152 34 0 26 1 0 1 1 0 8 0 sigapl 424 667 0 635 4 0 4 4 0 8 0 futexpl 56 7518 0 7518 2 1 1 1 0 8 1 knotepl 112 73 0 54 1 0 1 1 0 8 0 kqueuepl 144 295 0 289 1 0 1 1 0 8 0 pipepl 304 108 0 98 2 1 1 2 0 8 0 fdescpl 496 651 0 635 3 0 3 3 0 8 0 filepl 152 3835 0 3732 6 1 5 5 0 8 1 lockfpl 104 739 0 737 1 0 1 1 0 8 0 lockfspl 48 354 0 352 1 0 1 1 0 8 0 sessionpl 112 18 0 7 1 0 1 1 0 8 0 pgrppl 48 40 0 29 1 0 1 1 0 8 0 ucredpl 96 188 0 179 1 0 1 1 0 8 0 zombiepl 144 635 0 635 4 3 1 1 0 8 1 processpl 984 667 0 635 6 1 5 5 0 8 0 procpl 624 1593 0 1550 5 0 5 5 0 8 1 sosppl 128 5 0 5 1 1 0 1 0 8 0 sockpl 400 772 0 753 6 3 3 4 0 8 1 mcl64k 65536 8 0 0 1 0 1 1 0 8 0 mcl16k 16384 1 0 0 1 0 1 1 0 8 0 mcl12k 12288 5 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 4 0 0 1 0 1 1 0 8 0 mcl2k2 2112 1 0 0 1 0 1 1 0 8 0 mcl2k 2048 164 0 0 20 0 20 20 0 8 0 mtagpl 96 287 0 0 7 0 7 7 0 8 0 mbufpl 256 727 0 0 44 0 44 44 0 8 0 bufpl 280 4461 0 137 309 0 309 309 0 8 0 anonpl 16 442965 0 419670 143 24 119 119 0 124 23 amapchunkpl 152 5261 0 4852 23 5 18 21 0 158 2 amappl16 192 23973 0 22919 214 143 71 71 0 8 18 amappl15 184 212 0 209 1 0 1 1 0 8 0 amappl14 176 232 0 228 1 0 1 1 0 8 0 amappl13 168 29 0 25 1 0 1 1 0 8 0 amappl12 160 11 0 8 1 0 1 1 0 8 0 amappl11 152 262 0 246 1 0 1 1 0 8 0 amappl10 144 231 0 223 1 0 1 1 0 8 0 amappl9 136 389 0 388 1 0 1 1 0 8 0 amappl8 128 356 0 321 2 0 2 2 0 8 0 amappl7 120 115 0 105 1 0 1 1 0 8 0 amappl6 112 21 0 19 2 1 1 1 0 8 0 amappl5 104 351 0 333 1 0 1 1 0 8 0 amappl4 96 697 0 665 1 0 1 1 0 8 0 amappl3 88 321 0 313 1 0 1 1 0 8 0 amappl2 80 4420 0 4346 2 0 2 2 0 8 0 amappl1 72 23842 0 23391 23 13 10 18 0 8 0 amappl 80 1949 0 1899 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 7 0 1 1 0 1 1 0 8 0 uaddrrnd 24 660 0 636 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 660 0 636 1 0 1 1 0 8 0 vmmpekpl 168 9038 0 9002 2 0 2 2 0 8 0 vmmpepl 168 106445 0 104176 154 34 120 120 0 357 16 vmsppl 368 659 0 636 5 2 3 3 0 8 0 pdppl 4096 1327 0 1280 8 1 7 7 0 8 0 pvpl 32 650787 0 628923 282 41 241 247 0 265 51 pmappl 232 659 0 636 2 0 2 2 0 8 0 extentpl 40 53 0 36 1 0 1 1 0 8 0 phpool 112 304 0 14 9 0 9 9 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x1a: addq $0x8,%rsp ddb{0}> trace x86_ipi_db(ffffffff8273aff0) 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(ffffffff828b02d0) at __mp_lock+0x12e __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff828b02d0) at __mp_lock+0x12e sys/kern/kern_lock.c:147 intr_handler(ffff800020e8edc0,ffff80000004a400) at intr_handler+0x5e sys/arch/amd64/amd64/intr.c:532 Xintr_ioapic_edge17_untramp() at Xintr_ioapic_edge17_untramp+0x19f __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc pipeselwakeup(fffffd806f789670) at pipeselwakeup+0x4b sys/kern/sys_pipe.c:365 pipe_read(fffffd8079ff78e8,ffff800020e8f038,0) at pipe_read+0x482 sys/kern/sys_pipe.c:467 dofilereadv(ffff800020e41ae0,a,ffff800020e8f038,0,ffff800020e8f120) at dofilereadv+0x1a1 sys/kern/sys_generic.c:237 sys_read(ffff800020e41ae0,ffff800020e8f0d0,ffff800020e8f120) at sys_read+0x83 sys/kern/sys_generic.c:157 syscall(ffff800020e8f1a0) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800020e8f1a0) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xc00003ae40, count: -13 ddb{0}> machine ddbcpu 1 Stopped at soreceive+0x1100: movq %rbx,0x8(%r13) ddb{1}> trace soreceive(fffffd806f6864b0,0,ffff800020e1d9e8,0,0,ffff800020e1d8f4) at soreceive+0x1100 sbsync sys/kern/uipc_socket.c:661 [inline] soreceive(fffffd806f6864b0,0,ffff800020e1d9e8,0,0,ffff800020e1d8f4) at soreceive+0x1100 sys/kern/uipc_socket.c:855 soo_read(fffffd8079ff7390,ffff800020e1d9e8,0) at soo_read+0x53 sys/kern/sys_socket.c:70 dofilereadv(ffff800020ddc758,6,ffff800020e1d9e8,0,ffff800020e1dad0) at dofilereadv+0x1a1 sys/kern/sys_generic.c:237 sys_read(ffff800020ddc758,ffff800020e1da80,ffff800020e1dad0) at sys_read+0x83 sys/kern/sys_generic.c:157 syscall(ffff800020e1db50) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800020e1db50) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffe5f20, count: -6