login: uvm_fault(0xffffffff827b1ca0, 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(0xffffffff827b1ca0, 0xfffffd0000000008, 0, 2) -> e soreceive(fffffd806f68e190,0,ffff800020e1dd78,0,0,ffff800020e1dc84) at soreceive+0x1100 sbsync sys/kern/uipc_socket.c:661 [inline] soreceive(fffffd806f68e190,0,ffff800020e1dd78,0,0,ffff800020e1dc84) at soreceive+0x1100 sys/kern/uipc_socket.c:855 end trace frame: 0xffff800020e1dcc0, count: 0 ddb{1}> trace soreceive(fffffd806f68e190,0,ffff800020e1dd78,0,0,ffff800020e1dc84) at soreceive+0x1100 sbsync sys/kern/uipc_socket.c:661 [inline] soreceive(fffffd806f68e190,0,ffff800020e1dd78,0,0,ffff800020e1dc84) at soreceive+0x1100 sys/kern/uipc_socket.c:855 soo_read(fffffd807c9f6428,ffff800020e1dd78,0) at soo_read+0x53 sys/kern/sys_socket.c:70 dofilereadv(ffff800020ddc4e8,6,ffff800020e1dd78,0,ffff800020e1de60) at dofilereadv+0x1a1 sys/kern/sys_generic.c:237 sys_read(ffff800020ddc4e8,ffff800020e1de10,ffff800020e1de60) at sys_read+0x83 sys/kern/sys_generic.c:157 syscall(ffff800020e1dee0) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800020e1dee0) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffc4f70, count: -6 ddb{1}> show registers rdi 0 rsi 0 rbp 0xffff800020e1dc60 rbx 0xfffffd8069dea000 rdx 0x344bc acpi_pdirpa+0x20324 rcx 0 rax 0 r8 0xffffffff8235a881 soreceive+0x5c1 r9 0x3 r10 0x538014f4b37b1382 r11 0x8ab2910c0cc94aee r12 0x534 r13 0xfffffd0000000000 r14 0 r15 0xfffffd806f68e190 rip 0xffffffff8235b3c0 soreceive+0x1100 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff800020e1db70 ss 0x10 soreceive+0x1100: movq %rbx,0x8(%r13) ddb{1}> show proc PROC (dhclient) pid=482877 stat=onproc flags process=0 proc=0 pri=24, usrpri=50, nice=20 forw=0xffffffffffffffff, list=0xffff800020ddd5f8,0xffff800020ddc288 process=0xffff800020df0f70 user=0xffff800020e18000, vmspace=0xfffffd807efff000 estcpu=0, cpticks=1, pctcpu=0.1 user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 54681 449521 27352 0 2 0 syz-executor.1 54681 125743 27352 0 2 0x4000000 syz-executor.1 27352 458525 17005 0 3 0x82 nanosleep syz-executor.1 17005 426352 66945 0 3 0x82 thrsleep syz-fuzzer 17005 454243 66945 0 3 0x4000082 nanosleep syz-fuzzer 17005 490046 66945 0 3 0x4000082 thrsleep syz-fuzzer 17005 240747 66945 0 3 0x4000082 thrsleep syz-fuzzer 17005 150716 66945 0 3 0x4000082 thrsleep syz-fuzzer 17005 111679 66945 0 2 0x4000082 syz-fuzzer 17005 137989 66945 0 3 0x4000082 thrsleep syz-fuzzer 17005 251306 66945 0 3 0x4000082 thrsleep syz-fuzzer 17005 377743 66945 0 3 0x4000082 thrsleep syz-fuzzer 17005 100236 66945 0 3 0x4000082 nanosleep syz-fuzzer 66945 124114 63532 0 3 0x10008a pause ksh 63532 379725 61734 0 3 0x92 select sshd 85074 189238 1 0 3 0x100083 ttyin getty 61734 228629 1 0 3 0x80 select sshd 72870 119929 4271 74 3 0x100092 bpf pflogd 4271 498857 1 0 3 0x80 netio pflogd 11799 176990 88071 73 3 0x100090 kqread syslogd 88071 89742 1 0 3 0x100082 netio syslogd 87344 309365 1 77 2 0x100010 dhclient *81065 482877 1 0 7 0 dhclient 27581 450004 0 0 3 0x14200 bored smr 69602 138837 0 0 2 0x14200 zerothread 9907 129617 0 0 3 0x14200 aiodoned aiodoned 94142 419816 0 0 3 0x14200 syncer update 62481 117262 0 0 3 0x14200 cleaner cleaner 9482 372596 0 0 7 0x14200 reaper 80502 96947 0 0 3 0x14200 pgdaemon pagedaemon 41329 31416 0 0 3 0x14200 bored crynlk 79917 451537 0 0 3 0x14200 bored crypto 57656 258728 0 0 3 0x40014200 acpi0 acpi0 37397 424609 0 0 3 0x40014200 idle1 53641 66150 0 0 2 0x14200 softnet 24369 250411 0 0 3 0x14200 bored systqmp 40433 24359 0 0 3 0x14200 bored systq 87379 96442 0 0 3 0x40014200 bored softclock 95276 384481 0 0 3 0x40014200 idle0 1 248102 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 54681 (syz-executor.1) thread 0xffff800020e46768 (125743) exclusive rrwlock inode r = 0 (0xfffffd8064c84b40) #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_makeinode+0xaa sys/ufs/ufs/ufs_vnops.c:1830 #7 ufs_mknod+0x4e sys/ufs/ufs/ufs_vnops.c:172 #8 VOP_MKNOD+0xc6 sys/kern/vfs_vops.c:134 #9 domknodat+0x31e sys/kern/vfs_syscalls.c:1633 #10 syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] #10 syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 #11 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd8064c84e70) #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 domknodat+0x92 sys/kern/vfs_syscalls.c:1585 #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 81065 (dhclient) thread 0xffff800020ddc4e8 (482877) 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 Process 53641 (softnet) thread 0xffff800020d88270 (66150) shared rwlock softnet r = 0 (0xffff80000002c070) #0 witness_lock+0x4c7 stacktrace_save sys/sys/stacktrace.h:36 [inline] #0 witness_lock+0x4c7 sys/kern/subr_witness.c:1164 #1 taskq_thread+0xdf sys/kern/kern_task.c:436 #2 proc_trampoline+0x1c ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 9488 6403K 6664K 78643K 10772 0 pcb 13 8K 8K 78643K 33 0 rtable 86 3K 4K 78643K 286 0 ifaddr 51 11K 13K 78643K 102 0 counters 41 33K 34K 78643K 57 0 ioctlops 0 0K 4K 78643K 1480 0 iov 0 0K 12K 78643K 11 0 mount 1 1K 1K 78643K 1 0 vnodes 1222 77K 77K 78643K 1280 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 3 0 VM map 2 1K 1K 78643K 2 0 sem 12 1K 1K 78643K 34 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1824 197K 290K 78643K 13058 0 file desc 4 9K 25K 78643K 139 0 sigio 0 0K 0K 78643K 20 0 proc 60 63K 95K 78643K 458 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 4 0 in_multi 44 2K 3K 78643K 92 0 ether_multi 1 0K 0K 78643K 2 0 mrt 0 0K 0K 78643K 8 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 61 281K 281K 78643K 61 0 exec 0 0K 1K 78643K 219 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 127 39K 39K 78643K 1384 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 20 0 NDP 7 0K 0K 78643K 24 0 temp 77 3857K 3923K 78643K 4550 0 kqueue 3 4K 4K 78643K 3 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 6 0 2 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 80 27 0 25 1 0 1 1 0 8 0 rtentry 112 61 0 28 2 0 2 2 0 8 0 unpcb 120 99 0 89 1 0 1 1 0 8 0 syncache 264 6 0 6 2 1 1 1 0 8 1 tcpqe 32 76 0 76 1 0 1 1 0 8 1 tcpcb 544 34 0 30 1 0 1 1 0 8 0 inpcb 296 308 0 301 2 0 2 2 0 8 1 rttmr 72 4 0 4 1 0 1 1 0 8 1 nd6 48 15 0 12 1 0 1 1 0 8 0 pkpcb 40 6 0 6 1 0 1 1 0 8 1 ppxss 1128 1 0 1 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 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 pfstitem 24 19 0 0 1 0 1 1 0 8 0 pfstkey 112 19 0 0 1 0 1 1 0 8 0 pfstate 328 19 0 0 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 256 212 0 68 13 0 13 13 0 8 2 art_table 32 213 0 68 2 0 2 2 0 8 0 art_node 16 60 0 30 1 0 1 1 0 8 0 sysvmsgpl 40 6 0 0 1 0 1 1 0 8 0 semupl 112 3 0 3 1 0 1 1 0 8 1 semapl 112 18 0 8 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 1579 0 171 89 0 89 89 0 8 0 ffsino 272 1579 0 171 95 0 95 95 0 8 0 nchpl 144 1948 0 337 60 0 60 60 0 8 0 uvmvnodes 72 1662 0 0 31 0 31 31 0 8 0 vnodes 208 1662 0 0 88 0 88 88 0 8 0 namei 1024 5181 0 5180 1 0 1 1 0 8 0 percpumem 16 39 0 8 1 0 1 1 0 8 0 vcpupl 1984 1 0 0 1 0 1 1 0 8 0 vmpool 560 1 0 0 1 0 1 1 0 8 0 scxspl 192 5801 0 5801 2 1 1 2 0 8 1 plimitpl 152 27 0 19 1 0 1 1 0 8 0 sigapl 424 354 0 324 4 0 4 4 0 8 0 futexpl 56 1805 0 1805 1 0 1 1 0 8 1 knotepl 112 63 0 46 1 0 1 1 0 8 0 kqueuepl 144 21 0 19 1 0 1 1 0 8 0 pipepl 304 95 0 86 1 0 1 1 0 8 0 fdescpl 496 339 0 324 3 0 3 3 0 8 0 filepl 152 1919 0 1840 5 0 5 5 0 8 1 lockfpl 104 15 0 14 1 0 1 1 0 8 0 lockfspl 48 6 0 5 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 96 130 0 121 1 0 1 1 0 8 0 zombiepl 144 324 0 323 1 0 1 1 0 8 0 processpl 984 354 0 323 5 0 5 5 0 8 1 procpl 624 616 0 575 4 0 4 4 0 8 0 sockpl 400 440 0 421 4 0 4 4 0 8 2 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 mcl9k 9216 2 0 0 1 0 1 1 0 8 0 mcl4k 4096 3 0 0 1 0 1 1 0 8 0 mcl2k 2048 206 0 0 25 0 25 25 0 8 0 mtagpl 96 17 0 0 1 0 1 1 0 8 0 mbufpl 256 283 0 0 17 0 17 17 0 8 0 bufpl 280 3739 0 133 258 0 258 258 0 8 0 anonpl 16 45972 0 30100 67 1 66 66 0 124 2 amapchunkpl 152 1622 0 1491 8 0 8 8 0 158 1 amappl16 192 1422 0 557 45 0 45 45 0 8 1 amappl15 184 1 0 0 1 0 1 1 0 8 0 amappl14 176 72 0 66 1 0 1 1 0 8 0 amappl13 168 88 0 82 1 0 1 1 0 8 0 amappl12 160 68 0 62 1 0 1 1 0 8 0 amappl11 152 56 0 41 1 0 1 1 0 8 0 amappl10 144 17 0 13 1 0 1 1 0 8 0 amappl9 136 399 0 397 1 0 1 1 0 8 0 amappl8 128 352 0 315 2 0 2 2 0 8 0 amappl7 120 116 0 105 1 0 1 1 0 8 0 amappl6 112 27 0 21 1 0 1 1 0 8 0 amappl5 104 176 0 159 1 0 1 1 0 8 0 amappl4 96 552 0 520 1 0 1 1 0 8 0 amappl3 88 214 0 207 1 0 1 1 0 8 0 amappl2 80 1767 0 1699 2 0 2 2 0 8 0 amappl1 72 17538 0 17101 24 12 12 18 0 8 2 amappl 80 862 0 819 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 24 340 0 324 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 340 0 324 1 0 1 1 0 8 0 vmmpekpl 168 6701 0 6658 2 0 2 2 0 8 0 vmmpepl 168 48423 0 46414 112 6 106 106 0 357 17 vmsppl 368 339 0 323 2 0 2 2 0 8 0 pdppl 4096 687 0 647 6 0 6 6 0 8 0 pvpl 32 158400 0 139502 161 0 161 161 0 265 6 pmappl 232 339 0 323 2 0 2 2 0 8 1 extentpl 40 53 0 36 1 0 1 1 0 8 0 phpool 112 268 0 3 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(ffffffff82751ff0) 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 softintr_dispatch(0) at softintr_dispatch+0x4e sys/arch/amd64/amd64/softintr.c:89 Xsoftclock() at Xsoftclock+0x1f __sanitizer_cov_trace_cmp4(85fea,85feb) at __sanitizer_cov_trace_cmp4+0x56 kd_curproc sys/dev/kcov.c:415 [inline] __sanitizer_cov_trace_cmp4(85fea,85feb) at __sanitizer_cov_trace_cmp4+0x56 trace_cmp sys/dev/kcov.c:104 [inline] __sanitizer_cov_trace_cmp4(85fea,85feb) at __sanitizer_cov_trace_cmp4+0x56 sys/dev/kcov.c:135 __mp_lock(ffffffff8292a830) at __mp_lock+0x139 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff8292a830) at __mp_lock+0x139 sys/kern/kern_lock.c:147 uvm_unmap_detach(ffff800020dcf380,1) at uvm_unmap_detach+0xe7 sys/uvm/uvm_map.c:1581 uvm_map_teardown(fffffd807efffa10) at uvm_map_teardown+0x25c sys/uvm/uvm_map.c:2757 uvmspace_free(fffffd807efffa10) at uvmspace_free+0x86 sys/uvm/uvm_map.c:3646 uvm_exit(ffff800020df0010) at uvm_exit+0x29 sys/uvm/uvm_glue.c:297 reaper(ffff800020d89ad0) at reaper+0x189 sys/kern/kern_exit.c:456 end trace frame: 0x0, count: -13 ddb{0}> machine ddbcpu 1 Stopped at soreceive+0x1100: movq %rbx,0x8(%r13) ddb{1}> trace soreceive(fffffd806f68e190,0,ffff800020e1dd78,0,0,ffff800020e1dc84) at soreceive+0x1100 sbsync sys/kern/uipc_socket.c:661 [inline] soreceive(fffffd806f68e190,0,ffff800020e1dd78,0,0,ffff800020e1dc84) at soreceive+0x1100 sys/kern/uipc_socket.c:855 soo_read(fffffd807c9f6428,ffff800020e1dd78,0) at soo_read+0x53 sys/kern/sys_socket.c:70 dofilereadv(ffff800020ddc4e8,6,ffff800020e1dd78,0,ffff800020e1de60) at dofilereadv+0x1a1 sys/kern/sys_generic.c:237 sys_read(ffff800020ddc4e8,ffff800020e1de10,ffff800020e1de60) at sys_read+0x83 sys/kern/sys_generic.c:157 syscall(ffff800020e1dee0) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800020e1dee0) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffc4f70, count: -6