uvm_fault(0xffffffff825d3ff8, 0xfffffd0000000018, 0, 1) -> e kernel: page fault trap, code=0 Stopped at sbdrop+0x219: movl 0x18(%r15),%r13d ddb{1}> ddb{1}> set $lines = 0 ddb{1}> set $maxwidth = 0 ddb{1}> show panic kernel page fault uvm_fault(0xffffffff825d3ff8, 0xfffffd0000000018, 0, 1) -> e sbdrop(fffffd806f663480,fffffd806f663508,3ffe) at sbdrop+0x219 sys/kern/uipc_socket2.c:963 end trace frame: 0xffff800022baac30, count: 0 ddb{1}> trace sbdrop(fffffd806f663480,fffffd806f663508,3ffe) at sbdrop+0x219 sys/kern/uipc_socket2.c:963 sbflush(fffffd806f663480,fffffd806f663508) at sbflush+0x93 sys/kern/uipc_socket2.c:932 tcp_disconnect(ffff800000a03aa0) at tcp_disconnect+0xb4 tcp_usrclosed sys/netinet/tcp_usrreq.c:695 [inline] tcp_disconnect(ffff800000a03aa0) at tcp_disconnect+0xb4 sys/netinet/tcp_usrreq.c:674 tcp_usrreq(fffffd806f663480,6,0,0,0,ffff800020ae7658) at tcp_usrreq+0x47c sys/netinet/tcp_usrreq.c:274 soclose(fffffd806f663480,0) at soclose+0x2d0 sodisconnect sys/kern/uipc_socket.c:392 [inline] soclose(fffffd806f663480,0) at soclose+0x2d0 sys/kern/uipc_socket.c:282 soo_close(fffffd80779fd720,ffff800020ae7658) at soo_close+0x40 fdrop(fffffd80779fd720,ffff800020ae7658) at fdrop+0xc2 sys/kern/kern_descrip.c:1273 closef(fffffd80779fd720,ffff800020ae7658) at closef+0x11d sys/kern/kern_descrip.c:1257 fdfree(ffff800020ae7658) at fdfree+0x101 sys/kern/kern_descrip.c:1189 exit1(ffff800020ae7658,0,0,1) at exit1+0x344 sys/kern/kern_exit.c:196 sys_exit(ffff800020ae7658,ffff800022baaf80,ffff800022baafd0) at sys_exit+0x16 sys/kern/kern_exit.c:94 syscall(ffff800022bab050) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:92 [inline] syscall(ffff800022bab050) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:555 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffc90c0, count: -13 ddb{1}> show registers rdi 0 rsi 0xe90 rbp 0xffff800022baabe0 rbx 0 rdx 0xffffffff8265e0f0 mclpools rcx 0 rax 0 r8 0xffffffff81d012f8 sbdrop+0x248 r9 0x3 r10 0xeacbbac7e9372ad7 r11 0xcf6213858fdd213d r12 0xe90 r13 0x6d00 __ALIGN_SIZE+0x5d00 r14 0xfffffd806f663508 r15 0xfffffd0000000000 rip 0xffffffff81d012c9 sbdrop+0x219 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff800022baab80 ss 0x10 sbdrop+0x219: movl 0x18(%r15),%r13d ddb{1}> show proc PROC (syz-executor.1) pid=43655 stat=onproc flags process=1008 proc=2000 pri=32, usrpri=50, nice=20 forw=0xffffffffffffffff, list=0xffff800020ae6ef0,0xffff800020ae62a8 process=0xffff800020af5c58 user=0xffff800022ba6000, vmspace=0xfffffd807f0008a0 estcpu=0, cpticks=64, pctcpu=0.46 user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 63476 410422 77426 0 7 0 syz-executor.0 63476 260163 77426 0 2 0x4000000 syz-executor.0 40794 171460 0 0 3 0x14200 bored sosplice 9906 7431 25636 0 3 0x82 nanosleep syz-executor.1 77426 267339 25636 0 3 0x82 nanosleep syz-executor.0 25636 254793 88703 0 3 0x82 thrsleep syz-fuzzer 25636 487887 88703 0 3 0x4000082 nanosleep syz-fuzzer 25636 117054 88703 0 3 0x4000082 thrsleep syz-fuzzer 25636 323824 88703 0 3 0x4000082 thrsleep syz-fuzzer 25636 454422 88703 0 3 0x4000082 thrsleep syz-fuzzer 25636 237201 88703 0 3 0x4000082 thrsleep syz-fuzzer 25636 469891 88703 0 3 0x4000082 thrsleep syz-fuzzer 25636 87633 88703 0 3 0x4000082 thrsleep syz-fuzzer 25636 156857 88703 0 3 0x4000082 kqread syz-fuzzer 25636 227743 88703 0 3 0x4000082 thrsleep syz-fuzzer 88703 154146 84213 0 3 0x10008a pause ksh 84213 159444 39220 0 3 0x92 select sshd 9889 215239 1 0 3 0x100083 ttyin getty 39220 307374 1 0 3 0x80 select sshd 10239 345991 58126 74 3 0x100092 bpf pflogd 58126 433955 1 0 3 0x80 netio pflogd 6711 220325 99510 73 3 0x100010 biowait syslogd 99510 410565 1 0 3 0x100082 netio syslogd 27837 469616 0 0 2 0x14200 zerothread 28046 266268 0 0 3 0x14200 aiodoned aiodoned 1594 386052 0 0 3 0x14200 syncer update 21782 277875 0 0 3 0x14200 cleaner cleaner 51968 378492 0 0 3 0x14200 reaper reaper 48257 502309 0 0 3 0x14200 pgdaemon pagedaemon 57012 138600 0 0 3 0x14200 bored crynlk 30762 135339 0 0 3 0x14200 bored crypto 5747 308057 0 0 3 0x40014200 acpi0 acpi0 58378 334938 0 0 3 0x40014200 idle1 21474 317512 0 0 2 0x14200 softnet 97177 234721 0 0 3 0x14200 bored systqmp 47222 440921 0 0 3 0x14200 bored systq 22854 6720 0 0 3 0x40014200 bored softclock 64330 312228 0 0 3 0x40014200 idle0 11421 59366 0 0 3 0x14200 bored smr 1 264276 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 6711 (syslogd) thread 0xffff800020ad8c68 (220325) exclusive rrwlock inode r = 0 (0xfffffd806e6b3c50) #0 witness_lock+0x52e sys/kern/subr_witness.c:1163 #1 rw_enter+0x453 sys/kern/kern_rwlock.c:309 #2 rrw_enter+0x88 sys/kern/kern_rwlock.c:453 #3 VOP_LOCK+0xf9 sys/kern/vfs_vops.c:615 #4 vn_lock+0x81 sys/kern/vfs_vnops.c:571 #5 sys_fsync+0x114 sys/kern/vfs_syscalls.c:2797 #6 syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:92 [inline] #6 syscall+0x4a4 sys/arch/amd64/amd64/trap.c:555 #7 Xsyscall+0x128 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 9465 6333K 6786K 78643K 10841 0 pcb 13 8K 8K 78643K 37 0 rtable 108 4K 4K 78643K 223 0 ifaddr 48 11K 12K 78643K 77 0 counters 39 33K 33K 78643K 39 0 ioctlops 0 0K 4K 78643K 1481 0 iov 0 0K 16K 78643K 11 0 mount 1 1K 1K 78643K 1 0 vnodes 1218 77K 77K 78643K 1284 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 1K 78643K 2 0 VM map 2 1K 1K 78643K 2 0 sem 10 0K 0K 78643K 10 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1809 196K 290K 78643K 12766 0 file desc 6 17K 25K 78643K 110 0 proc 55 51K 95K 78643K 439 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 1 0 in_multi 45 2K 2K 78643K 53 0 ether_multi 1 0K 0K 78643K 1 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 31 148K 148K 78643K 31 0 exec 0 0K 1K 78643K 211 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 125 38K 39K 78643K 1331 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 2K 78643K 21 0 NDP 6 0K 0K 78643K 16 0 temp 98 3019K 3083K 78643K 3749 0 kqueue 0 0K 0K 78643K 2 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 0 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 80 33 0 33 1 0 1 1 0 8 1 rtentry 112 51 0 7 2 0 2 2 0 8 0 unpcb 120 245 0 237 2 1 1 2 0 8 0 syncache 264 8 0 8 2 1 1 1 0 8 1 tcpqe 32 80 0 80 2 1 1 1 0 8 1 tcpcb 544 44 0 34 1 0 1 1 0 8 0 inpcb 280 180 0 168 2 0 2 2 0 8 1 nd6 48 5 0 2 1 0 1 1 0 8 0 ppxss 1128 2 0 2 1 0 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 45 0 45 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 pfstitem 24 30 0 4 1 0 1 1 0 8 0 pfstkey 112 30 0 4 1 0 1 1 0 8 0 pfstate 328 30 0 4 3 0 3 3 0 8 0 pfrule 1360 21 0 16 2 1 1 2 0 8 0 art_heap8 4096 2 0 0 2 0 2 2 0 8 0 art_heap4 256 248 0 39 14 0 14 14 0 8 0 art_table 32 250 0 39 2 0 2 2 0 8 0 art_node 16 50 0 9 1 0 1 1 0 8 0 sysvmsgpl 40 75 0 50 1 0 1 1 0 8 0 semupl 112 3 0 3 1 0 1 1 0 8 1 semapl 112 8 0 0 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 dino1pl 128 1531 0 123 46 0 46 46 0 8 0 ffsino 272 1531 0 123 95 1 94 95 0 8 0 nchpl 144 1877 0 256 61 0 61 61 0 8 0 uvmvnodes 72 1633 0 0 30 0 30 30 0 8 0 vnodes 208 1633 0 0 86 0 86 86 0 8 0 namei 1024 4915 0 4915 1 0 1 1 0 8 1 percpumem 16 30 0 0 1 0 1 1 0 8 0 vcpupl 1984 2 0 0 1 0 1 1 0 8 0 vmpool 560 2 0 0 1 0 1 1 0 8 0 scxspl 192 5218 0 5217 8 3 5 7 0 8 4 plimitpl 152 18 0 11 1 0 1 1 0 8 0 sigapl 432 309 0 295 3 1 2 3 0 8 0 futexpl 56 1754 0 1754 1 0 1 1 0 8 1 knotepl 112 58 0 39 1 0 1 1 0 8 0 kqueuepl 104 18 0 16 1 0 1 1 0 8 0 pipepl 112 174 0 155 1 0 1 1 0 8 0 fdescpl 488 310 0 295 3 0 3 3 0 8 0 filepl 152 1919 0 1823 7 2 5 7 0 8 1 lockfpl 104 32 0 32 1 0 1 1 0 8 1 lockfspl 48 14 0 14 1 0 1 1 0 8 1 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 91 0 83 1 0 1 1 0 8 0 zombiepl 144 296 0 295 1 0 1 1 0 8 0 processpl 904 326 0 295 4 0 4 4 0 8 0 procpl 632 545 0 504 5 0 5 5 0 8 0 sosppl 128 2 0 2 1 0 1 1 0 8 1 sockpl 384 458 0 439 7 3 4 7 0 8 1 mcl64k 65536 4 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 3 0 0 1 0 1 1 0 8 0 mcl2k2 2112 2 0 0 1 0 1 1 0 8 0 mcl2k 2048 147 0 0 18 0 18 18 0 8 0 mtagpl 80 14 0 0 1 0 1 1 0 8 0 mbufpl 256 298 0 0 19 0 19 19 0 8 0 bufpl 280 6367 0 1340 360 0 360 360 0 8 0 anonpl 16 50870 0 31471 85 1 84 84 0 125 6 amapchunkpl 152 1893 0 1720 13 1 12 12 0 158 5 amappl16 192 1447 0 387 54 0 54 54 0 8 1 amappl15 184 58 0 54 1 0 1 1 0 8 0 amappl14 176 107 0 99 1 0 1 1 0 8 0 amappl12 160 12 0 9 1 0 1 1 0 8 0 amappl11 152 53 0 45 1 0 1 1 0 8 0 amappl10 144 10 0 6 1 0 1 1 0 8 0 amappl9 136 598 0 595 1 0 1 1 0 8 0 amappl8 128 134 0 108 2 0 2 2 0 8 0 amappl7 120 101 0 90 1 0 1 1 0 8 0 amappl6 112 56 0 49 1 0 1 1 0 8 0 amappl5 104 140 0 127 1 0 1 1 0 8 0 amappl4 96 525 0 495 2 1 1 2 0 8 0 amappl3 88 199 0 186 1 0 1 1 0 8 0 amappl2 80 1571 0 1495 3 1 2 3 0 8 0 amappl1 72 17174 0 16720 27 17 10 21 0 8 0 amappl 80 800 0 748 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 24 312 0 295 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 312 0 295 1 0 1 1 0 8 0 vmmpekpl 168 6389 0 6358 2 0 2 2 0 8 0 vmmpepl 168 46079 0 43781 135 14 121 129 0 357 21 vmsppl 368 311 0 295 2 0 2 2 0 8 0 pdppl 4096 631 0 592 6 0 6 6 0 8 0 pvpl 32 161105 0 137953 199 0 199 199 0 265 12 pmappl 232 311 0 295 2 0 2 2 0 8 0 extentpl 40 46 0 29 1 0 1 1 0 8 0 phpool 112 173 0 4 5 0 5 5 0 8 0