"*"*"*"*"*uvm_fault(0xffffffff827fad80, 0xfffffd0000000010, 0, 1) -> e kernel: page fault trap, code=0 Stopped at pool_cache_get+0x1b1: movq 0x10(%r14),%r13 ddb{0}> ddb{0}> set $lines = 0 ddb{0}> set $maxwidth = 0 ddb{0}> show panic kernel page fault uvm_fault(0xffffffff827fad80, 0xfffffd0000000010, 0, 1) -> e pool_cache_get(ffffffff82920158) at pool_cache_get+0x1b1 pool_cache_item_magic_check sys/kern/subr_pool.c:1770 [inline] pool_cache_get(ffffffff82920158) at pool_cache_get+0x1b1 sys/kern/subr_pool.c:1884 end trace frame: 0xffff8000230f4cd0, count: 0 ddb{0}> trace pool_cache_get(ffffffff82920158) at pool_cache_get+0x1b1 pool_cache_item_magic_check sys/kern/subr_pool.c:1770 [inline] pool_cache_get(ffffffff82920158) at pool_cache_get+0x1b1 sys/kern/subr_pool.c:1884 pool_get(ffffffff82920158,2) at pool_get+0x91 sys/kern/subr_pool.c:572 m_gethdr(2,2) at m_gethdr+0x4c sys/kern/uipc_mbuf.c:283 tcp_output(ffff800000ad9cc0) at tcp_output+0x1428 sys/netinet/tcp_output.c:704 tcp_usrreq(fffffd80642fe1c0,4,0,fffffd8077121a00,0,ffff800020e23128) at tcp_usrreq+0xa55 sys_connect(ffff800020e23128,ffff8000230f4ff8,ffff8000230f5040) at sys_connect+0x3df sys/kern/uipc_syscalls.c:381 syscall(ffff8000230f50c0) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff8000230f50c0) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xa84f0acb380, count: -8 ddb{0}> show registers rdi 0xffffffff81beba1a pool_cache_get+0x6a rsi 0x34d rbp 0xffff8000230f4c10 rbx 0x9142327de3fc681a rdx 0x34e rcx 0xffff80002310c000 rax 0xffff80002310c000 r8 0xffffffff8101bf4a tcp_mss+0x32a r9 0x5 r10 0x2 r11 0xd493e6d6f2ea6a08 r12 0xffffffff82920158 mbpool r13 0 r14 0xfffffd0000000000 r15 0xfffffd807f009f00 rip 0xffffffff81bebb61 pool_cache_get+0x1b1 cs 0x8 rflags 0x10282 __ALIGN_SIZE+0xf282 rsp 0xffff8000230f4bb0 ss 0x10 pool_cache_get+0x1b1: movq 0x10(%r14),%r13 ddb{0}> show proc PROC (syz-executor.1) pid=356434 stat=onproc flags process=0 proc=4000000 pri=32, usrpri=74, nice=20 forw=0xffffffffffffffff, list=0xffff800021eedd60,0xffff800020e229e8 process=0xffff800021efaf90 user=0xffff8000230f0000, vmspace=0xfffffd80646dc180 estcpu=36, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 81457 306974 91790 0 2 0 syz-executor.0 3657 337620 84205 0 7 0 syz-executor.1 * 3657 356434 84205 0 7 0x4000000 syz-executor.1 37536 152788 0 0 3 0x14280 nfsidl nfsio 68536 30750 0 0 3 0x14280 nfsidl nfsio 95146 149912 0 0 3 0x14280 nfsidl nfsio 50743 436761 0 0 3 0x14280 nfsidl nfsio 83294 267042 0 0 3 0x14280 nfsidl nfsio 67327 118767 0 0 3 0x14280 nfsidl nfsio 7079 270350 0 0 3 0x14280 nfsidl nfsio 65534 211559 0 0 3 0x14280 nfsidl nfsio 31115 35057 0 0 3 0x14280 nfsidl nfsio 62448 413705 0 0 3 0x14280 nfsidl nfsio 78998 502659 0 0 3 0x14280 nfsidl nfsio 44691 174707 0 0 3 0x14280 nfsidl nfsio 67166 366620 0 0 3 0x14280 nfsidl nfsio 93861 8879 0 0 3 0x14280 nfsidl nfsio 80800 254625 0 0 3 0x14280 nfsidl nfsio 81090 181734 0 0 3 0x14280 nfsidl nfsio 26880 70557 0 0 3 0x14280 nfsidl nfsio 33911 234037 0 0 3 0x14280 nfsidl nfsio 54134 289516 0 0 3 0x14280 nfsidl nfsio 9114 295156 0 0 3 0x14280 nfsidl nfsio 59418 416897 0 0 3 0x14200 acct acct 54079 233156 1 0 3 0x100083 ttyin getty 13015 122509 0 0 3 0x14200 bored sosplice 84205 417979 92688 0 3 0x82 nanosleep syz-executor.1 91790 441203 92688 0 3 0x82 nanosleep syz-executor.0 92688 124198 71616 0 3 0x82 thrsleep syz-fuzzer 92688 93678 71616 0 3 0x4000082 thrsleep syz-fuzzer 92688 479859 71616 0 3 0x4000082 thrsleep syz-fuzzer 92688 52862 71616 0 3 0x4000082 thrsleep syz-fuzzer 92688 392696 71616 0 3 0x4000082 thrsleep syz-fuzzer 92688 131126 71616 0 3 0x4000082 thrsleep syz-fuzzer 92688 395430 71616 0 3 0x4000082 thrsleep syz-fuzzer 92688 420222 71616 0 3 0x4000082 thrsleep syz-fuzzer 92688 94416 71616 0 3 0x4000082 thrsleep syz-fuzzer 92688 112599 71616 0 3 0x4000082 thrsleep syz-fuzzer 92688 248277 71616 0 3 0x4000082 kqread syz-fuzzer 71616 96358 61364 0 3 0x10008a pause ksh 61364 453486 51015 0 3 0x92 select sshd 51015 441695 1 0 3 0x80 select sshd 42720 467369 1229 74 3 0x100092 bpf pflogd 1229 197840 1 0 3 0x80 netio pflogd 65338 421315 5763 73 3 0x100090 kqread syslogd 5763 405698 1 0 3 0x100082 netio syslogd 40501 403885 1 77 3 0x100090 poll dhclient 94444 95242 1 0 3 0x80 poll dhclient 55247 73834 0 0 3 0x14200 bored smr 6895 401619 0 0 2 0x14200 zerothread 1935 283759 0 0 3 0x14200 aiodoned aiodoned 21128 405388 0 0 3 0x14200 syncer update 93712 173750 0 0 3 0x14200 cleaner cleaner 78800 420442 0 0 3 0x14200 reaper reaper 48271 10823 0 0 3 0x14200 pgdaemon pagedaemon 49730 158273 0 0 3 0x14200 bored crynlk 79862 416808 0 0 3 0x14200 bored crypto 35046 361399 0 0 3 0x40014200 acpi0 acpi0 36440 170879 0 0 3 0x40014200 idle1 57915 417909 0 0 3 0x14200 bored softnet 28793 441496 0 0 3 0x14200 bored systqmp 78755 385688 0 0 3 0x14200 bored systq 97265 321209 0 0 3 0x40014200 bored softclock 13969 438854 0 0 3 0x40014200 idle0 1 364208 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 3657 (syz-executor.1) thread 0xffff800020e23128 (356434) exclusive rwlock netlock r = 0 (0xffffffff8279d888) #0 witness_lock+0x4c7 stacktrace_save sys/sys/stacktrace.h:36 [inline] #0 witness_lock+0x4c7 sys/kern/subr_witness.c:1164 #1 solock+0x5a sys/kern/uipc_socket2.c:282 #2 sys_connect+0x6a sys/kern/uipc_syscalls.c:355 #3 syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] #3 syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 #4 Xsyscall+0x128 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 syscall+0x400 mi_syscall sys/sys/syscall_mi.h:93 [inline] #1 syscall+0x400 sys/arch/amd64/amd64/trap.c:570 #2 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 9557 6689K 6804K 78643K 11527 0 pcb 13 8K 8K 78643K 83 0 rtable 112 7K 9K 78643K 813 0 ifaddr 92 18K 18K 78643K 209 0 counters 43 33K 34K 78643K 65 0 ioctlops 0 0K 4K 78643K 1558 0 iov 0 0K 16K 78643K 251 0 mount 1 1K 1K 78643K 1 0 vnodes 1215 76K 77K 78643K 1614 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 8 0 VM map 2 1K 1K 78643K 2 0 sem 12 0K 0K 78643K 75 0 dirhash 9 1K 2K 78643K 12 0 ACPI 1824 197K 290K 78643K 13058 0 file desc 6 17K 25K 78643K 778 0 sigio 0 0K 0K 78643K 11 0 proc 62 63K 83K 78643K 500 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 22 0 in_multi 51 2K 2K 78643K 150 0 ether_multi 1 0K 0K 78643K 7 0 mrt 0 0K 0K 78643K 3 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 257 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 143 137K 139K 78643K 3466 0 UVM aobj 22 2K 2K 78643K 22 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 49 0 NDP 14 0K 0K 78643K 43 0 temp 128 3869K 3937K 78643K 46439 0 kqueue 3 4K 16K 78643K 223 0 SYN cache 2 16K 16K 78643K 2 0 ddb{0}> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle arp 64 20 0 13 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 112 216 0 177 2 0 2 2 0 8 0 unpcb 120 289 0 279 1 0 1 1 0 8 0 syncache 264 7 0 7 3 2 1 1 0 8 1 tcpqe 32 233 0 233 2 2 0 1 0 8 0 tcpcb 544 870 0 862 1 0 1 1 0 8 0 inpcb 296 1241 0 1229 5 3 2 3 0 8 1 rttmr 72 2 0 2 1 1 0 1 0 8 0 nd6 48 23 0 21 1 0 1 1 0 8 0 pkpcb 40 2 0 2 1 1 0 1 0 8 0 ppxss 1128 1 0 1 1 1 0 1 0 8 0 pfstscr 40 1 0 1 1 1 0 1 0 8 0 pffrag 232 5 0 5 2 2 0 1 0 482 0 pffrnode 88 5 0 5 2 2 0 1 0 8 0 pffrent 40 182 0 182 2 2 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 61 0 55 2 1 1 1 0 8 0 pftag 88 1 0 0 1 0 1 1 0 8 0 pfqueue 264 1 0 0 1 0 1 1 0 8 0 pfstitem 24 67 0 18 1 0 1 1 0 8 0 pfstkey 112 68 0 19 2 0 2 2 0 8 0 pfstate 328 68 0 19 6 0 6 6 0 8 0 pfrule 1360 38 0 27 2 1 1 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 440 0 272 14 3 11 14 0 8 0 art_table 32 441 0 272 2 0 2 2 0 8 0 art_node 16 112 0 77 1 0 1 1 0 8 0 sysvmsgpl 40 56 0 39 1 0 1 1 0 8 0 semupl 112 2 0 2 1 1 0 1 0 8 0 semapl 112 71 0 61 1 0 1 1 0 8 0 shmpl 112 20 0 0 1 0 1 1 0 8 0 dirhash 1024 17 0 10 3 1 2 3 0 8 0 dino2pl 256 2775 0 1370 89 0 89 89 0 8 0 ffsino 272 2775 0 1370 96 1 95 95 0 8 0 nchpl 144 4058 0 2447 60 0 60 60 0 8 0 uvmvnodes 72 2987 0 0 55 0 55 55 0 8 0 vnodes 208 2987 0 0 158 0 158 158 0 8 0 namei 1024 10883 0 10883 3 2 1 1 0 8 1 percpumem 16 43 0 11 1 0 1 1 0 8 0 vcpupl 1984 11 0 0 2 0 2 2 0 8 0 vmpool 560 11 0 0 1 0 1 1 0 8 0 pfiaddrpl 120 19 0 17 2 1 1 1 0 8 0 scxspl 192 11920 0 11920 11 10 1 7 0 8 1 plimitpl 152 55 0 47 1 0 1 1 0 8 0 sigapl 424 1016 0 962 7 0 7 7 0 8 1 futexpl 56 11456 0 11456 2 1 1 1 0 8 1 knotepl 112 293 0 274 1 0 1 1 0 8 0 kqueuepl 144 478 0 473 1 0 1 1 0 8 0 pipepl 304 147 0 137 3 2 1 2 0 8 0 fdescpl 496 979 0 962 3 0 3 3 0 8 0 filepl 152 5821 0 5716 5 0 5 5 0 8 0 lockfpl 104 93 0 92 1 0 1 1 0 8 0 lockfspl 48 36 0 35 1 0 1 1 0 8 0 sessionpl 112 19 0 8 1 0 1 1 0 8 0 pgrppl 48 103 0 92 1 0 1 1 0 8 0 ucredpl 96 396 0 387 1 0 1 1 0 8 0 zombiepl 144 962 0 962 2 1 1 1 0 8 1 processpl 984 1016 0 962 7 0 7 7 0 8 0 procpl 624 2665 0 2600 6 0 6 6 0 8 1 sosppl 128 34 0 34 3 2 1 1 0 8 1 sockpl 400 1571 0 1547 7 4 3 4 0 8 0 mcl64k 65536 525 0 0 66 0 66 66 0 8 0 mcl16k 16384 2 0 0 1 0 1 1 0 8 0 mcl12k 12288 6 0 0 1 0 1 1 0 8 0 mcl9k 9216 3 0 0 1 0 1 1 0 8 0 mcl8k 8192 3 0 0 1 0 1 1 0 8 0 mcl4k 4096 7 0 0 1 0 1 1 0 8 0 mcl2k2 2112 1 0 0 1 0 1 1 0 8 0 mcl2k 2048 203 0 0 25 0 25 25 0 8 0 mtagpl 96 57 0 0 2 0 2 2 0 8 0 mbufpl 256 919 0 0 55 0 55 55 0 8 0 bufpl 280 5223 0 134 364 0 364 364 0 8 0 anonpl 16 97667 0 81005 89 7 82 83 0 124 13 amapchunkpl 152 6206 0 6051 33 23 10 20 0 158 2 amappl16 192 4165 0 3251 59 6 53 58 0 8 7 amappl15 184 2 0 2 2 2 0 1 0 8 0 amappl14 176 773 0 764 1 0 1 1 0 8 0 amappl13 168 28 0 25 1 0 1 1 0 8 0 amappl12 160 10 0 8 1 0 1 1 0 8 0 amappl11 152 443 0 426 1 0 1 1 0 8 0 amappl10 144 20 0 16 1 0 1 1 0 8 0 amappl9 136 390 0 388 1 0 1 1 0 8 0 amappl8 128 359 0 329 2 0 2 2 0 8 0 amappl7 120 118 0 107 1 0 1 1 0 8 0 amappl6 112 409 0 402 1 0 1 1 0 8 0 amappl5 104 513 0 495 1 0 1 1 0 8 0 amappl4 96 880 0 847 1 0 1 1 0 8 0 amappl3 88 483 0 477 1 0 1 1 0 8 0 amappl2 80 6878 0 6804 2 0 2 2 0 8 0 amappl1 72 30556 0 30105 23 13 10 18 0 8 0 amappl 80 2912 0 2859 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 21 0 0 1 0 1 1 0 8 0 uaddrrnd 24 990 0 962 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 990 0 962 1 0 1 1 0 8 0 vmmpekpl 168 10987 0 10945 3 0 3 3 0 8 0 vmmpepl 168 123441 0 121275 127 22 105 112 0 357 8 vmsppl 368 989 0 962 3 0 3 3 0 8 0 pdppl 4096 1987 0 1935 8 1 7 7 0 8 0 pvpl 32 312994 0 293036 208 12 196 197 0 265 35 pmappl 232 989 0 962 3 1 2 2 0 8 0 extentpl 40 53 0 36 1 0 1 1 0 8 0 phpool 112 384 0 15 11 0 11 11 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace pool_cache_get(ffffffff82920158) at pool_cache_get+0x1b1 pool_cache_item_magic_check sys/kern/subr_pool.c:1770 [inline] pool_cache_get(ffffffff82920158) at pool_cache_get+0x1b1 sys/kern/subr_pool.c:1884 pool_get(ffffffff82920158,2) at pool_get+0x91 sys/kern/subr_pool.c:572 m_gethdr(2,2) at m_gethdr+0x4c sys/kern/uipc_mbuf.c:283 tcp_output(ffff800000ad9cc0) at tcp_output+0x1428 sys/netinet/tcp_output.c:704 tcp_usrreq(fffffd80642fe1c0,4,0,fffffd8077121a00,0,ffff800020e23128) at tcp_usrreq+0xa55 sys_connect(ffff800020e23128,ffff8000230f4ff8,ffff8000230f5040) at sys_connect+0x3df sys/kern/uipc_syscalls.c:381 syscall(ffff8000230f50c0) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff8000230f50c0) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xa84f0acb380, count: -8 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x1a: addq $0x8,%rsp ddb{1}> trace x86_ipi_db(ffff800020d70ff0) 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 sys_clock_gettime(ffff800021eedd60,ffff800020e37e10,ffff800020e37e60) at sys_clock_gettime+0x96 sys/kern/kern_time.c:170 syscall(ffff800020e37ee0) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800020e37ee0) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffe4fe0, count: -6