uvm_fault(0xffffffff82887cc0, 0xfffffd0000000010, 0, 1) -> e kernel: page fault trap, code=0 Stopped at pool_cache_get+0x1b1: movq 0x10(%r14),%r13 ddb{1}> ddb{1}> set $lines = 0 ddb{1}> set $maxwidth = 0 ddb{1}> show panic kernel page fault uvm_fault(0xffffffff82887cc0, 0xfffffd0000000010, 0, 1) -> e pool_cache_get(ffffffff828b5e40) at pool_cache_get+0x1b1 pool_cache_item_magic_check sys/kern/subr_pool.c:1770 [inline] pool_cache_get(ffffffff828b5e40) at pool_cache_get+0x1b1 sys/kern/subr_pool.c:1884 end trace frame: 0xffff800023f83be0, count: 0 ddb{1}> trace pool_cache_get(ffffffff828b5e40) at pool_cache_get+0x1b1 pool_cache_item_magic_check sys/kern/subr_pool.c:1770 [inline] pool_cache_get(ffffffff828b5e40) at pool_cache_get+0x1b1 sys/kern/subr_pool.c:1884 pool_get(ffffffff828b5e40,1) at pool_get+0x91 sys/kern/subr_pool.c:572 m_get(1,3) at m_get+0x4c sys/kern/uipc_mbuf.c:250 sockargs(ffff800023f83cb0,20000000,10,3) at sockargs+0x8d sys/kern/uipc_syscalls.c:1120 sys_connect(ffff800020ea3028,ffff800023f83d38,ffff800023f83d80) at sys_connect+0x9b sys/kern/uipc_syscalls.c:360 syscall(ffff800023f83e00) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800023f83e00) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x68a2620d340, count: -7 ddb{1}> show registers rdi 0xffffffff8119b5fa pool_cache_get+0x6a rsi 0xb3 rbp 0xffff800023f83b20 rbx 0xb9cc722a6d218b95 rdx 0xb4 rcx 0xffff8000220d8000 rax 0xffff8000220d8000 r8 0xffffffff8224bb26 solock+0x36 r9 0x5 r10 0x2 r11 0xdc4377917a576de4 r12 0xffffffff828b5e40 mbpool r13 0 r14 0xfffffd0000000000 r15 0xfffffd807f009e80 rip 0xffffffff8119b741 pool_cache_get+0x1b1 cs 0x8 rflags 0x10286 __ALIGN_SIZE+0xf286 rsp 0xffff800023f83ac0 ss 0x10 pool_cache_get+0x1b1: movq 0x10(%r14),%r13 ddb{1}> show proc PROC (syz-executor.0) pid=341076 stat=onproc flags process=0 proc=4000000 pri=32, usrpri=65, nice=20 forw=0xffffffffffffffff, list=0xffff800020ea39e8,0xffff800020ea3c68 process=0xffff8000230fc038 user=0xffff800023f7e000, vmspace=0xfffffd80685aaa20 estcpu=36, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 83870 297162 41019 0 2 0 syz-executor.0 *83870 341076 41019 0 7 0x4000000 syz-executor.0 83870 388565 41019 0 3 0x4000080 fsleep syz-executor.0 743 337304 0 0 3 0x14200 acct acct 41019 100648 97104 0 3 0x82 nanosleep syz-executor.0 116 381671 0 0 3 0x14200 bored sosplice 48677 362037 0 0 3 0x14280 nfsidl nfsio 14667 387044 0 0 3 0x14280 nfsidl nfsio 2393 253545 0 0 3 0x14280 nfsidl nfsio 4637 327870 0 0 3 0x14280 nfsidl nfsio 72885 122485 0 0 3 0x14280 nfsidl nfsio 71329 20374 0 0 3 0x14280 nfsidl nfsio 61147 411800 0 0 3 0x14280 nfsidl nfsio 55373 151709 0 0 3 0x14280 nfsidl nfsio 23209 101878 0 0 3 0x14280 nfsidl nfsio 86912 124958 0 0 3 0x14280 nfsidl nfsio 28561 348071 0 0 3 0x14280 nfsidl nfsio 74195 374719 0 0 3 0x14280 nfsidl nfsio 92546 439616 0 0 3 0x14280 nfsidl nfsio 21712 58675 0 0 3 0x14280 nfsidl nfsio 84905 139128 0 0 3 0x14280 nfsidl nfsio 86354 42962 0 0 3 0x14280 nfsidl nfsio 19780 251357 0 0 3 0x14280 nfsidl nfsio 65551 418579 0 0 3 0x14280 nfsidl nfsio 47654 416381 0 0 3 0x14280 nfsidl nfsio 62513 504864 0 0 3 0x14280 nfsidl nfsio 28907 352143 97104 0 3 0x82 piperd syz-executor.1 97104 164926 79039 0 3 0x82 thrsleep syz-fuzzer 97104 459351 79039 0 3 0x4000082 nanosleep syz-fuzzer 97104 12510 79039 0 3 0x4000082 thrsleep syz-fuzzer 97104 42476 79039 0 3 0x4000082 thrsleep syz-fuzzer 97104 513619 79039 0 3 0x4000082 thrsleep syz-fuzzer 97104 446709 79039 0 3 0x4000082 kqread syz-fuzzer 97104 15226 79039 0 3 0x4000082 thrsleep syz-fuzzer 97104 444591 79039 0 3 0x4000082 thrsleep syz-fuzzer 97104 50002 79039 0 7 0x4000002 syz-fuzzer 97104 8482 79039 0 3 0x4000082 thrsleep syz-fuzzer 79039 157797 51792 0 3 0x10008a pause ksh 51792 38867 93127 0 3 0x92 select sshd 29183 478228 1 0 3 0x100083 ttyin getty 93127 64955 1 0 3 0x80 select sshd 89843 448347 19270 74 3 0x100092 bpf pflogd 19270 502778 1 0 3 0x80 netio pflogd 22571 173407 47955 73 3 0x100090 kqread syslogd 47955 214575 1 0 3 0x100082 netio syslogd 31439 275844 1 77 3 0x100090 poll dhclient 10186 401349 1 0 3 0x80 poll dhclient 9787 276611 0 0 3 0x14200 bored smr 82656 2741 0 0 2 0x14200 zerothread 1416 185069 0 0 3 0x14200 aiodoned aiodoned 92317 347755 0 0 3 0x14200 syncer update 40635 277914 0 0 3 0x14200 cleaner cleaner 71697 78403 0 0 3 0x14200 reaper reaper 3538 490056 0 0 3 0x14200 pgdaemon pagedaemon 16760 253166 0 0 3 0x14200 bored crynlk 52186 223870 0 0 3 0x14200 bored crypto 77891 341357 0 0 3 0x40014200 acpi0 acpi0 71476 522405 0 0 3 0x40014200 idle1 95796 249335 0 0 3 0x14200 bored softnet 76012 324583 0 0 3 0x14200 bored systqmp 16054 439141 0 0 3 0x14200 bored systq 58270 414372 0 0 3 0x40014200 bored softclock 61359 479664 0 0 3 0x40014200 idle0 1 202725 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 83870 (syz-executor.0) thread 0xffff800020ea3028 (341076) exclusive rwlock netlock r = 0 (0xffffffff8278f3d8) #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 (0xffffffff828b55a0) #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{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 9544 6426K 7176K 78643K 12631 0 pcb 13 8K 8K 78643K 114 0 rtable 152 13K 14K 78643K 1059 0 ifaddr 107 21K 21K 78643K 493 0 sysctl 2 0K 0K 78643K 2 0 counters 43 33K 34K 78643K 89 0 ioctlops 0 0K 4K 78643K 1600 0 iov 0 0K 16K 78643K 183 0 mount 1 1K 1K 78643K 1 0 vnodes 1218 77K 77K 78643K 1717 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 1K 78643K 156 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1824 197K 290K 78643K 13058 0 file desc 5 13K 25K 78643K 1131 0 sigio 0 0K 0K 78643K 14 0 proc 61 63K 95K 78643K 591 0 subproc 32 2K 2K 78643K 51 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 348 0 in_multi 89 4K 4K 78643K 761 0 ether_multi 1 0K 0K 78643K 14 0 mrt 0 0K 0K 78643K 2 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 269 0 pfkey data 0 0K 1K 78643K 2 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 144 88K 104K 78643K 4276 0 UVM aobj 24 2K 2K 78643K 26 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 76 0 NDP 15 0K 0K 78643K 188 0 temp 146 3873K 3937K 78643K 33097 0 kqueue 3 4K 8K 78643K 37 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 17 0 9 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 80 127 0 125 1 0 1 1 0 8 0 rtentry 112 249 0 204 2 0 2 2 0 8 0 unpcb 120 342 0 332 1 0 1 1 0 8 0 syncache 264 5 0 5 2 2 0 1 0 8 0 tcpqe 32 261 0 261 1 1 0 1 0 8 0 tcpcb 544 524 0 520 1 0 1 1 0 8 0 inpcb 296 1683 0 1674 6 4 2 2 0 8 1 rttmr 72 1 0 1 1 1 0 1 0 8 0 nd6 48 168 0 162 1 0 1 1 0 8 0 pkpcb 40 10 0 10 4 4 0 1 0 8 0 swfcl 56 2 0 0 1 0 1 1 0 8 0 ppxss 1128 4 0 4 4 4 0 1 0 8 0 pffrag 232 1 0 0 1 0 1 1 0 482 0 pffrnode 88 1 0 0 1 0 1 1 0 8 0 pffrent 40 4 0 3 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 pfrktable 1344 88 0 70 3 1 2 2 0 8 0 pfstitem 24 17 0 15 1 0 1 1 0 8 0 pfstkey 112 17 0 15 1 0 1 1 0 8 0 pfstate 328 17 0 15 2 1 1 2 0 8 0 pfsrctr 152 4 0 4 1 1 0 1 0 8 0 pfrule 1360 44 0 25 3 1 2 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 327 0 123 14 0 14 14 0 8 1 art_table 32 328 0 123 2 0 2 2 0 8 0 art_node 16 247 0 207 1 0 1 1 0 8 0 sysvmsgpl 40 31 0 11 1 0 1 1 0 8 0 semupl 112 2 0 2 1 1 0 1 0 8 0 semapl 112 148 0 138 1 0 1 1 0 8 0 shmpl 112 23 0 2 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 2867 0 1459 89 0 89 89 0 8 0 ffsino 272 2867 0 1459 96 1 95 95 0 8 0 nchpl 144 4825 0 3234 61 1 60 61 0 8 0 uvmvnodes 72 3265 0 0 60 0 60 60 0 8 0 vnodes 208 3265 0 0 172 0 172 172 0 8 0 namei 1024 14030 0 14030 2 1 1 1 0 8 1 percpumem 16 55 0 23 1 0 1 1 0 8 0 vcpupl 1984 7 0 0 1 0 1 1 0 8 0 vmpool 560 13 0 6 1 0 1 1 0 8 0 pfiaddrpl 120 32 0 14 1 0 1 1 0 8 0 scxspl 192 13998 0 13998 15 12 3 7 0 8 3 plimitpl 152 64 0 56 1 0 1 1 0 8 0 sigapl 424 1365 0 1312 6 0 6 6 0 8 0 futexpl 56 18268 0 18267 1 0 1 1 0 8 0 knotepl 112 117 0 98 1 0 1 1 0 8 0 kqueuepl 144 118 0 116 1 0 1 1 0 8 0 pipepl 304 198 0 188 4 3 1 2 0 8 0 fdescpl 496 1328 0 1312 3 0 3 3 0 8 0 filepl 152 8143 0 8041 6 1 5 5 0 8 1 lockfpl 104 230 0 229 1 0 1 1 0 8 0 lockfspl 48 72 0 71 1 0 1 1 0 8 0 sessionpl 112 19 0 8 1 0 1 1 0 8 0 pgrppl 48 26 0 15 1 0 1 1 0 8 0 ucredpl 96 1033 0 1024 1 0 1 1 0 8 0 zombiepl 144 1312 0 1312 2 1 1 1 0 8 1 processpl 992 1365 0 1312 8 1 7 7 0 8 0 procpl 624 3426 0 3362 6 0 6 6 0 8 0 sockpl 400 2164 0 2143 6 3 3 4 0 8 0 mcl64k 65536 529 0 0 66 3 63 66 0 8 1 mcl16k 16384 8 0 0 1 0 1 1 0 8 0 mcl12k 12288 10 0 0 1 0 1 1 0 8 0 mcl9k 9216 5 0 0 1 0 1 1 0 8 0 mcl8k 8192 4 0 0 1 0 1 1 0 8 0 mcl4k 4096 9 0 0 2 0 2 2 0 8 0 mcl2k2 2112 4 0 0 1 0 1 1 0 8 0 mcl2k 2048 183 0 0 22 1 21 22 0 8 0 mtagpl 96 40 0 0 1 0 1 1 0 8 0 mbufpl 256 716 0 0 41 0 41 41 0 8 0 bufpl 280 5811 0 137 406 0 406 406 0 8 0 anonpl 16 146664 0 130363 120 37 83 85 0 124 14 amapchunkpl 152 7921 0 7766 48 28 20 20 0 158 13 amappl16 192 6335 0 5399 89 34 55 59 0 8 8 amappl15 184 1 0 0 1 0 1 1 0 8 0 amappl14 176 806 0 799 1 0 1 1 0 8 0 amappl13 168 338 0 334 1 0 1 1 0 8 0 amappl12 160 310 0 309 3 2 1 1 0 8 0 amappl11 152 836 0 819 1 0 1 1 0 8 0 amappl10 144 23 0 16 1 0 1 1 0 8 0 amappl9 136 387 0 386 1 0 1 1 0 8 0 amappl8 128 404 0 360 2 0 2 2 0 8 0 amappl7 120 126 0 113 1 0 1 1 0 8 0 amappl6 112 477 0 470 1 0 1 1 0 8 0 amappl5 104 446 0 429 1 0 1 1 0 8 0 amappl4 96 1299 0 1266 1 0 1 1 0 8 0 amappl3 88 467 0 460 1 0 1 1 0 8 0 amappl2 80 9913 0 9837 2 0 2 2 0 8 0 amappl1 72 36366 0 35921 23 13 10 18 0 8 0 amappl 80 3694 0 3642 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 25 0 2 1 0 1 1 0 8 0 uaddrrnd 24 1341 0 1318 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1341 0 1318 1 0 1 1 0 8 0 vmmpekpl 168 13072 0 13032 2 0 2 2 0 8 0 vmmpepl 168 168105 0 165955 180 75 105 130 0 357 11 vmsppl 368 1340 0 1318 3 0 3 3 0 8 0 pdppl 4096 2689 0 2643 7 1 6 6 0 8 0 pvpl 32 415110 0 395518 280 77 203 205 0 265 39 pmappl 232 1340 0 1318 4 2 2 2 0 8 0 extentpl 40 53 0 36 1 0 1 1 0 8 0 phpool 112 366 0 13 11 0 11 11 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x1a: addq $0x8,%rsp ddb{0}> trace x86_ipi_db(ffffffff82759ff0) 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_cmp4(101efb,101efc) at __sanitizer_cov_trace_cmp4+0x11 kd_curproc sys/dev/kcov.c:397 [inline] __sanitizer_cov_trace_cmp4(101efb,101efc) at __sanitizer_cov_trace_cmp4+0x11 trace_cmp sys/dev/kcov.c:104 [inline] __sanitizer_cov_trace_cmp4(101efb,101efc) at __sanitizer_cov_trace_cmp4+0x11 sys/dev/kcov.c:135 __mp_lock(ffffffff828b5398) at __mp_lock+0x139 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff828b5398) at __mp_lock+0x139 sys/kern/kern_lock.c:147 softintr_dispatch(0) at softintr_dispatch+0x4e sys/arch/amd64/amd64/softintr.c:89 Xsoftclock() at Xsoftclock+0x1f end of kernel end trace frame: 0xc002f695d0, count: -7 ddb{0}> machine ddbcpu 1 Stopped at pool_cache_get+0x1b1: movq 0x10(%r14),%r13 ddb{1}> trace pool_cache_get(ffffffff828b5e40) at pool_cache_get+0x1b1 pool_cache_item_magic_check sys/kern/subr_pool.c:1770 [inline] pool_cache_get(ffffffff828b5e40) at pool_cache_get+0x1b1 sys/kern/subr_pool.c:1884 pool_get(ffffffff828b5e40,1) at pool_get+0x91 sys/kern/subr_pool.c:572 m_get(1,3) at m_get+0x4c sys/kern/uipc_mbuf.c:250 sockargs(ffff800023f83cb0,20000000,10,3) at sockargs+0x8d sys/kern/uipc_syscalls.c:1120 sys_connect(ffff800020ea3028,ffff800023f83d38,ffff800023f83d80) at sys_connect+0x9b sys/kern/uipc_syscalls.c:360 syscall(ffff800023f83e00) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800023f83e00) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x68a2620d340, count: -7