login: uvm_fault(0xfffffd806e7e2b48, 0x100000008, 0, 2) -> e kernel: page fault trap, code=0 Stopped at arp_rtrequest+0x15f: movq %rcx,0x8(%r15) ddb{1}> ddb{1}> set $lines = 0 ddb{1}> set $maxwidth = 0 ddb{1}> show panic kernel page fault uvm_fault(0xfffffd806e7e2b48, 0x100000008, 0, 2) -> e arp_rtrequest() at arp_rtrequest+0x15f sys/netinet/if_ether.c:201 end trace frame: 0xffff800020bc1a30, count: 0 ddb{1}> trace arp_rtrequest() at arp_rtrequest+0x15f sys/netinet/if_ether.c:201 rtm_output(ffff800000975400,ffff800020bc1af0,ffff800020bc1a40,40,0) at rtm_output+0xbf4 sys/net/rtsock.c:1040 route_output(fffffd806f0ce800,fffffd806e9a5788,0,0) at route_output+0x7d2 sys/net/rtsock.c:814 route_usrreq(fffffd806e9a5788,9,fffffd806f0ce800,0,0,ffff800020b85780) at route_usrreq+0x363 sys/net/rtsock.c:271 sosend(fffffd806e9a5788,0,ffff800020bc1ce0,0,0,80) at sosend+0x668 sys/kern/uipc_socket.c:513 sendit(ffff800020b85780,4,ffff800020bc1dc0,0,ffff800020bc1ed0) at sendit+0x52c sys/kern/uipc_syscalls.c:662 sys_sendto(ffff800020b85780,ffff800020bc1e68,ffff800020bc1ed0) at sys_sendto+0x80 sys/kern/uipc_syscalls.c:527 syscall(ffff800020bc1f40) at syscall+0x552 mi_syscall sys/sys/syscall_mi.h:99 [inline] syscall(ffff800020bc1f40) at syscall+0x552 sys/arch/amd64/amd64/trap.c:574 Xsyscall(6,0,191,0,2a,4) at Xsyscall+0x128 end of kernel end trace frame: 0x7f7fffffabe0, count: -9 ddb{1}> show registers rdi 0x2 rsi 0xffffffff82245450 __sancov_gen_cov_switch_values rbp 0xffff800020bc1990 rbx 0xffff80000005b850 rdx 0x8b rcx 0xdeaf4152deaf4152 rax 0xffff80000005b858 r8 0xffffffff81f09c1f arp_rtrequest+0x11f r9 0x5 r10 0xa1052ed823511cd4 r11 0xaad29c102df2beda r12 0xffff800000173290 r13 0x2 r14 0xfffffd806f738540 r15 0x100000000 rip 0xffffffff81f09c5f arp_rtrequest+0x15f cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff800020bc1910 ss 0x10 arp_rtrequest+0x15f: movq %rcx,0x8(%r15) ddb{1}> show proc PROC (syz-executor5432) pid=233399 stat=onproc flags process=0 proc=0 pri=51, usrpri=51, nice=20 forw=0xffffffffffffffff, list=0xffff800020b85528,0xffffffff82398cb8 process=0xffff800020afb070 user=0xffff800020bbc000, vmspace=0xfffffd806e7e2b48 estcpu=2, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND *78814 233399 70887 0 7 0 syz-executor5432 70887 144140 93405 0 3 0x82 nanosleep syz-executor5432 93405 217815 87825 0 3 0x10008a pause ksh 87825 217624 21294 0 3 0x92 select sshd 64666 135616 1 0 3 0x100083 ttyin getty 21294 95289 1 0 3 0x80 select sshd 46492 36289 48194 74 3 0x100092 bpf pflogd 48194 46670 1 0 3 0x80 netio pflogd 62947 506589 59714 73 7 0x100010 syslogd 59714 468757 1 0 3 0x100082 netio syslogd 8579 70541 1 77 3 0x100090 poll dhclient 41766 53879 1 0 3 0x80 poll dhclient 40381 407465 0 0 3 0x14200 pgzero zerothread 70244 332952 0 0 3 0x14200 aiodoned aiodoned 26835 480035 0 0 3 0x14200 syncer update 92500 86850 0 0 3 0x14200 cleaner cleaner 43568 86206 0 0 3 0x14200 reaper reaper 75885 51045 0 0 3 0x14200 pgdaemon pagedaemon 68434 220042 0 0 3 0x14200 bored crynlk 11323 520983 0 0 3 0x14200 bored crypto 14789 428451 0 0 3 0x40014200 acpi0 acpi0 34297 454419 0 0 3 0x40014200 idle1 58051 158086 0 0 3 0x14200 bored softnet 72615 42831 0 0 3 0x14200 bored systqmp 99895 272031 0 0 3 0x14200 bored systq 90433 385291 0 0 3 0x40014200 bored softclock 49943 346609 0 0 3 0x40014200 idle0 36385 82975 0 0 3 0x14200 bored smr 1 29890 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 78814 (syz-executor5432) thread 0xffff800020b85780 (233399) exclusive rwlock netlock r = 0 (0xffffffff82200df8) #0 witness_lock+0x52e sys/kern/subr_witness.c:1161 #1 rtm_output+0xb86 sys/net/rtsock.c:1031 #2 route_output+0x7d2 sys/net/rtsock.c:814 #3 route_usrreq+0x363 sys/net/rtsock.c:271 #4 sosend+0x668 sys/kern/uipc_socket.c:513 #5 sendit+0x52c sys/kern/uipc_syscalls.c:662 #6 sys_sendto+0x80 sys/kern/uipc_syscalls.c:527 #7 syscall+0x552 mi_syscall sys/sys/syscall_mi.h:99 [inline] #7 syscall+0x552 sys/arch/amd64/amd64/trap.c:574 #8 Xsyscall+0x128 exclusive kernel_lock &kernel_lock r = 1 (0xffffffff82360fe0) #0 witness_lock+0x52e sys/kern/subr_witness.c:1161 #1 solock+0x66 sys/kern/uipc_socket2.c:292 #2 sosend+0x52c sys/kern/uipc_socket.c:501 #3 sendit+0x52c sys/kern/uipc_syscalls.c:662 #4 sys_sendto+0x80 sys/kern/uipc_syscalls.c:527 #5 syscall+0x552 mi_syscall sys/sys/syscall_mi.h:99 [inline] #5 syscall+0x552 sys/arch/amd64/amd64/trap.c:574 #6 Xsyscall+0x128 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim Kern Lim devbuf 9450 6382K 6383K 78643K 10537 0 0 pcb 27 9K 9K 78643K 62 0 0 rtable 65 2K 2K 78643K 136 0 0 ifaddr 25 7K 7K 78643K 26 0 0 counters 39 33K 33K 78643K 39 0 0 ioctlops 0 0K 4K 78643K 1467 0 0 mount 1 1K 1K 78643K 1 0 0 vnodes 1175 74K 74K 78643K 1180 0 0 UFS quota 1 32K 32K 78643K 1 0 0 UFS mount 5 36K 36K 78643K 5 0 0 shm 2 1K 1K 78643K 2 0 0 VM map 2 1K 1K 78643K 2 0 0 sem 2 0K 0K 78643K 2 0 0 dirhash 12 2K 2K 78643K 12 0 0 ACPI 1808 196K 290K 78643K 12628 0 0 file desc 1 0K 0K 78643K 1 0 0 proc 52 50K 58K 78643K 279 0 0 NFS srvsock 1 0K 0K 78643K 1 0 0 NFS daemon 1 16K 16K 78643K 1 0 0 in_multi 11 0K 0K 78643K 11 0 0 ether_multi 1 0K 0K 78643K 1 0 0 ISOFS mount 1 32K 32K 78643K 1 0 0 MSDOSFS mount 1 16K 16K 78643K 1 0 0 ttys 18 79K 79K 78643K 18 0 0 exec 0 0K 1K 78643K 179 0 0 pagedep 1 8K 8K 78643K 1 0 0 inodedep 1 32K 32K 78643K 1 0 0 newblk 1 0K 0K 78643K 1 0 0 VM swap 7 26K 26K 78643K 7 0 0 UVM amap 58 3K 3K 78643K 817 0 0 UVM aobj 2 2K 2K 78643K 2 0 0 memdesc 1 4K 4K 78643K 1 0 0 crypto data 1 1K 1K 78643K 1 0 0 NDP 4 0K 0K 78643K 4 0 0 temp 40 2712K 2776K 78643K 2007 0 0 SYN cache 2 16K 16K 78643K 2 0 0 ddb{1}> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle arp 64 2 0 0 1 0 1 1 0 8 0 inpcbpl 280 29 0 23 1 0 1 1 0 8 0 plimitpl 152 14 0 8 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtentry 112 24 0 1 1 0 1 1 0 8 0 syncache 264 5 0 5 1 0 1 1 0 8 1 tcpcb 544 8 0 5 1 0 1 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 pfstitem 24 8 0 0 1 0 1 1 0 8 0 pfstkey 112 8 0 0 1 0 1 1 0 8 0 pfstate 328 8 0 0 1 0 1 1 0 8 0 pfrule 1360 21 0 16 2 1 1 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 102 0 0 7 0 7 7 0 8 0 art_table 32 103 0 0 1 0 1 1 0 8 0 art_node 16 23 0 2 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino1pl 128 1394 0 17 45 0 45 45 0 8 0 ffsino 272 1394 0 17 92 0 92 92 0 8 0 nchpl 144 1567 0 32 57 0 57 57 0 8 0 uvmvnodes 72 1404 0 0 26 0 26 26 0 8 0 vnodes 200 1404 0 0 74 0 74 74 0 8 0 namei 1024 3555 0 3555 2 1 1 1 0 8 1 percpumem 16 30 0 0 1 0 1 1 0 8 0 scxspl 192 2452 0 2452 8 2 6 6 0 8 6 sigapl 432 207 0 194 2 0 2 2 0 8 0 knotepl 112 5 0 0 1 0 1 1 0 8 0 kqueuepl 104 1 0 0 1 0 1 1 0 8 0 pipepl 112 134 0 127 2 1 1 1 0 8 0 fdescpl 488 208 0 194 3 0 3 3 0 8 0 filepl 152 964 0 915 2 0 2 2 0 8 0 lockfpl 104 6 0 6 1 1 0 1 0 8 0 lockfspl 48 3 0 3 1 1 0 1 0 8 0 sessionpl 112 18 0 9 1 0 1 1 0 8 0 pgrppl 48 18 0 9 1 0 1 1 0 8 0 ucredpl 96 52 0 43 1 0 1 1 0 8 0 zombiepl 144 194 0 194 2 1 1 1 0 8 1 processpl 840 223 0 194 4 0 4 4 0 8 0 procpl 600 223 0 194 3 0 3 3 0 8 0 sockpl 384 78 0 58 3 0 3 3 0 8 1 mcl4k 4096 5 0 0 1 0 1 1 0 8 0 mcl2k 2048 56 0 0 7 0 7 7 0 8 0 mtagpl 80 1 0 0 1 0 1 1 0 8 0 mbufpl 256 82 0 0 5 0 5 5 0 8 0 bufpl 256 2162 0 287 118 0 118 118 0 8 0 anonpl 16 19428 0 18204 8 2 6 7 0 125 1 amapchunkpl 152 554 0 516 2 0 2 2 0 158 0 amappl16 192 83 0 77 1 0 1 1 0 8 0 amappl14 176 16 0 15 2 1 1 1 0 8 0 amappl12 160 7 0 7 1 0 1 1 0 8 1 amappl11 152 45 0 27 1 0 1 1 0 8 0 amappl10 144 62 0 60 1 0 1 1 0 8 0 amappl9 136 425 0 424 1 0 1 1 0 8 0 amappl8 128 101 0 97 1 0 1 1 0 8 0 amappl7 120 18 0 17 1 0 1 1 0 8 0 amappl6 112 45 0 41 1 0 1 1 0 8 0 amappl5 104 113 0 98 1 0 1 1 0 8 0 amappl4 96 376 0 356 1 0 1 1 0 8 0 amappl3 88 163 0 152 1 0 1 1 0 8 0 amappl2 80 848 0 794 3 1 2 2 0 8 0 amappl1 72 13423 0 13008 15 5 10 15 0 8 0 amappl 80 428 0 406 1 0 1 1 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 dma64 64 259 0 259 1 1 0 1 0 8 0 dma32 32 7 0 7 1 1 0 1 0 8 0 dma16 16 17 0 17 1 1 0 1 0 8 0 aobjpl 64 1 0 0 1 0 1 1 0 8 0 uaddrrnd 24 208 0 194 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 208 0 194 1 0 1 1 0 8 0 vmmpekpl 168 5600 0 5578 2 0 2 2 0 8 0 vmmpepl 168 28736 0 27922 50 11 39 47 0 357 1 vmsppl 360 207 0 194 2 0 2 2 0 8 0 pdppl 4096 424 0 388 6 0 6 6 0 8 0 pvpl 32 80756 0 77743 31 3 28 28 0 265 3 pmappl 232 207 0 194 1 0 1 1 0 8 0 extentpl 40 41 0 26 1 0 1 1 0 8 0 phpool 112 247 0 4 7 0 7 7 0 8 0