uvm_fault(0xffffffff82851588, 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(0xffffffff82851588, 0xfffffd0000000010, 0, 1) -> e pool_cache_get(ffffffff828c2ff0) at pool_cache_get+0x1b1 pool_cache_item_magic_check sys/kern/subr_pool.c:1770 [inline] pool_cache_get(ffffffff828c2ff0) at pool_cache_get+0x1b1 sys/kern/subr_pool.c:1884 end trace frame: 0xffff800020ed7910, count: 0 ddb{1}> trace pool_cache_get(ffffffff828c2ff0) at pool_cache_get+0x1b1 pool_cache_item_magic_check sys/kern/subr_pool.c:1770 [inline] pool_cache_get(ffffffff828c2ff0) at pool_cache_get+0x1b1 sys/kern/subr_pool.c:1884 pool_get(ffffffff828c2ff0,1) at pool_get+0x91 sys/kern/subr_pool.c:572 m_get(1,4) at m_get+0x4c sys/kern/uipc_mbuf.c:250 sys_setsockopt(ffff800020e47398,ffff800020ed79d8,ffff800020ed7a20) at sys_setsockopt+0x12b sys/kern/uipc_syscalls.c:944 syscall(ffff800020ed7aa0) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800020ed7aa0) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xb685cac06b0, count: -6 ddb{1}> show registers rdi 0xffffffff8159d27a pool_cache_get+0x6a rsi 0x70 rbp 0xffff800020ed7850 rbx 0xc118cdde47c586c2 rdx 0x71 rcx 0xffff800021ee6000 rax 0xffff800021ee6000 r8 0xffffffff81eae610 uvm_map_inentry_pc r9 0x1a r10 0x6 r11 0x3f948d6d47707bbe r12 0xffffffff828c2ff0 mbpool r13 0 r14 0xfffffd0000000000 r15 0xfffffd807f009d80 rip 0xffffffff8159d3c1 pool_cache_get+0x1b1 cs 0x8 rflags 0x10282 __ALIGN_SIZE+0xf282 rsp 0xffff800020ed77f0 ss 0x10 pool_cache_get+0x1b1: movq 0x10(%r14),%r13 ddb{1}> show proc PROC (syz-executor.1) pid=19618 stat=onproc flags process=0 proc=4000000 pri=32, usrpri=86, nice=20 forw=0xffffffffffffffff, list=0xffff800020e47128,0xffff800020e46508 process=0xffff800020dfd730 user=0xffff800020ed2000, vmspace=0xfffffd807f0002e0 estcpu=36, cpticks=2, pctcpu=0.0 user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 30898 139281 11053 0 2 0 syz-executor.0 66556 356644 31663 0 2 0 syz-executor.1 *66556 19618 31663 0 7 0x4000000 syz-executor.1 42745 39613 0 0 3 0x14200 bored sosplice 31663 1883 15271 0 2 0x2 syz-executor.1 11053 64302 15271 0 2 0x2 syz-executor.0 15271 465905 1028 0 3 0x82 thrsleep syz-fuzzer 15271 407451 1028 0 3 0x4000082 nanosleep syz-fuzzer 15271 485669 1028 0 3 0x4000082 thrsleep syz-fuzzer 15271 60771 1028 0 3 0x4000082 thrsleep syz-fuzzer 15271 312798 1028 0 3 0x4000082 thrsleep syz-fuzzer 15271 292751 1028 0 2 0x4000002 syz-fuzzer 15271 102054 1028 0 3 0x4000082 kqread syz-fuzzer 15271 383994 1028 0 3 0x4000082 thrsleep syz-fuzzer 15271 102225 1028 0 7 0x4000002 syz-fuzzer 15271 304708 1028 0 3 0x4000082 thrsleep syz-fuzzer 15271 314798 1028 0 3 0x4000082 thrsleep syz-fuzzer 1028 259100 41562 0 3 0x10008a pause ksh 41562 242152 91193 0 3 0x92 select sshd 67660 198821 1 0 3 0x100083 ttyin getty 91193 9050 1 0 3 0x80 select sshd 79176 447785 75103 74 3 0x100092 bpf pflogd 75103 29984 1 0 3 0x80 netio pflogd 38855 469899 67791 73 3 0x100090 kqread syslogd 67791 261601 1 0 3 0x100082 netio syslogd 47696 421790 1 77 3 0x100090 poll dhclient 35042 519249 1 0 3 0x80 poll dhclient 19045 435907 0 0 3 0x14200 bored smr 70693 75379 0 0 2 0x14200 zerothread 19259 137602 0 0 3 0x14200 aiodoned aiodoned 41040 347278 0 0 3 0x14200 syncer update 64715 424502 0 0 3 0x14200 cleaner cleaner 1734 426231 0 0 3 0x14200 reaper reaper 11924 493953 0 0 3 0x14200 pgdaemon pagedaemon 47161 522526 0 0 3 0x14200 bored crynlk 13557 224728 0 0 3 0x14200 bored crypto 65955 316839 0 0 3 0x40014200 acpi0 acpi0 10043 177599 0 0 3 0x40014200 idle1 69847 212442 0 0 3 0x14200 bored softnet 80851 99413 0 0 3 0x14200 bored systqmp 74529 508805 0 0 3 0x14200 bored systq 65291 280691 0 0 3 0x40014200 bored softclock 65500 524243 0 0 3 0x40014200 idle0 1 11391 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 66556 (syz-executor.1) thread 0xffff800020e47398 (19618) exclusive kernel_lock &kernel_lock r = 1 (0xffffffff828c2b40) #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 9523 6420K 7132K 78643K 11417 0 pcb 13 8K 8K 78643K 88 0 rtable 106 7K 8K 78643K 432 0 ifaddr 81 15K 16K 78643K 148 0 counters 43 33K 34K 78643K 55 0 ioctlops 0 0K 4K 78643K 1541 0 iov 0 0K 16K 78643K 40 0 mount 1 1K 1K 78643K 1 0 vnodes 1220 77K 77K 78643K 1428 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 6 0 VM map 2 1K 1K 78643K 2 0 sem 12 0K 1K 78643K 72 0 dirhash 9 1K 2K 78643K 12 0 ACPI 1824 197K 290K 78643K 13058 0 file desc 6 17K 25K 78643K 419 0 sigio 0 0K 0K 78643K 2 0 proc 64 63K 83K 78643K 478 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 33 0 in_multi 50 2K 3K 78643K 135 0 ether_multi 1 0K 0K 78643K 10 0 mrt 0 0K 0K 78643K 7 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 227 0 pfkey data 0 0K 0K 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 120 23K 32K 78643K 2281 0 UVM aobj 13 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 179 0 NDP 13 0K 0K 78643K 30 0 temp 111 3867K 3931K 78643K 10835 0 kqueue 3 4K 21K 78643K 34 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 8 0 4 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 80 35 0 33 1 0 1 1 0 8 0 rtentry 112 68 0 35 2 0 2 2 0 8 1 unpcb 120 275 0 265 1 0 1 1 0 8 0 syncache 264 10 0 10 2 2 0 1 0 8 0 tcpqe 32 86 0 86 2 2 0 1 0 8 0 tcpcb 544 303 0 299 1 0 1 1 0 8 0 inpcb 296 977 0 969 3 1 2 2 0 8 1 rttmr 72 2 0 2 2 1 1 1 0 8 1 nd6 48 19 0 16 1 0 1 1 0 8 0 pkpcb 40 2 0 2 1 1 0 1 0 8 0 ppxss 1128 2 0 2 1 1 0 1 0 8 0 pffrag 232 2 0 1 1 0 1 1 0 482 0 pffrnode 88 2 0 1 1 0 1 1 0 8 0 pffrent 40 47 0 46 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 44 0 37 2 1 1 1 0 8 0 pftag 88 1 0 0 1 0 1 1 0 8 0 pfqueue 264 2 0 0 1 0 1 1 0 8 0 pfstitem 24 39 0 7 1 0 1 1 0 8 0 pfstkey 112 39 0 7 1 0 1 1 0 8 0 pfstate 328 39 0 7 3 0 3 3 0 8 0 pfsrctr 152 5 0 1 1 0 1 1 0 8 0 pfrule 1360 42 0 26 3 1 2 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 263 0 107 13 1 12 13 0 8 2 art_table 32 264 0 107 2 0 2 2 0 8 0 art_node 16 67 0 37 1 0 1 1 0 8 0 sysvmsgpl 40 8 0 3 1 0 1 1 0 8 0 semupl 112 3 0 3 1 1 0 1 0 8 0 semapl 112 70 0 60 1 0 1 1 0 8 0 shmpl 112 24 0 13 1 0 1 1 0 8 0 dirhash 1024 17 0 10 3 1 2 3 0 8 0 dino2pl 256 1933 0 530 89 0 89 89 0 8 0 ffsino 272 1933 0 530 95 1 94 95 0 8 0 nchpl 144 2705 0 1106 60 0 60 60 0 8 0 uvmvnodes 72 2144 0 0 39 0 39 39 0 8 0 vnodes 208 2144 0 0 113 0 113 113 0 8 0 namei 1024 7289 0 7289 2 1 1 1 0 8 1 percpumem 16 38 0 6 1 0 1 1 0 8 0 pfiaddrpl 120 14 0 10 2 1 1 1 0 8 0 scsiplug 64 2 0 2 1 0 1 1 0 8 1 scxspl 192 7841 0 7841 8 7 1 7 0 8 1 plimitpl 152 36 0 28 1 0 1 1 0 8 0 sigapl 424 635 0 602 4 0 4 4 0 8 0 futexpl 56 6550 0 6550 2 1 1 1 0 8 1 knotepl 112 98 0 79 1 0 1 1 0 8 0 kqueuepl 144 64 0 62 1 0 1 1 0 8 0 pipelkpl 48 140 0 130 1 0 1 1 0 8 0 pipepl 120 280 0 261 1 0 1 1 0 8 0 fdescpl 496 619 0 602 3 0 3 3 0 8 0 filepl 152 3739 0 3638 5 0 5 5 0 8 1 lockfpl 104 86 0 85 1 0 1 1 0 8 0 lockfspl 48 32 0 31 1 0 1 1 0 8 0 sessionpl 112 18 0 7 1 0 1 1 0 8 0 pgrppl 48 24 0 13 1 0 1 1 0 8 0 ucredpl 96 269 0 260 1 0 1 1 0 8 0 zombiepl 144 602 0 602 1 0 1 1 0 8 1 processpl 984 635 0 602 5 0 5 5 0 8 0 procpl 624 1515 0 1471 4 0 4 4 0 8 0 srpgc 64 5 0 5 1 0 1 1 0 8 1 sosppl 128 11 0 11 2 1 1 1 0 8 1 sockpl 400 1294 0 1274 5 2 3 4 0 8 1 mcl64k 65536 10 0 0 2 0 2 2 0 8 0 mcl16k 16384 2 0 0 1 0 1 1 0 8 0 mcl12k 12288 4 0 0 1 0 1 1 0 8 0 mcl9k 9216 3 0 0 1 0 1 1 0 8 0 mcl8k 8192 2 0 0 1 0 1 1 0 8 0 mcl4k 4096 6 0 0 1 0 1 1 0 8 0 mcl2k2 2112 1 0 0 1 0 1 1 0 8 0 mcl2k 2048 198 0 0 24 0 24 24 0 8 0 mtagpl 96 62 0 0 2 0 2 2 0 8 0 mbufpl 256 504 0 0 31 0 31 31 0 8 0 bufpl 280 3989 0 135 276 0 276 276 0 8 0 anonpl 16 66042 0 49676 77 2 75 75 0 124 8 amapchunkpl 152 3915 0 3763 29 11 18 20 0 158 11 amappl16 192 2662 0 1778 46 1 45 46 0 8 0 amappl15 184 2 0 1 1 0 1 1 0 8 0 amappl14 176 219 0 214 1 0 1 1 0 8 0 amappl13 168 28 0 25 1 0 1 1 0 8 0 amappl12 160 11 0 8 1 0 1 1 0 8 0 amappl11 152 53 0 38 1 0 1 1 0 8 0 amappl10 144 210 0 204 1 0 1 1 0 8 0 amappl9 136 393 0 390 1 0 1 1 0 8 0 amappl8 128 340 0 312 1 0 1 1 0 8 0 amappl7 120 310 0 297 1 0 1 1 0 8 0 amappl6 112 27 0 19 1 0 1 1 0 8 0 amappl5 104 518 0 502 1 0 1 1 0 8 0 amappl4 96 484 0 458 1 0 1 1 0 8 0 amappl3 88 308 0 303 1 0 1 1 0 8 0 amappl2 80 4008 0 3934 2 0 2 2 0 8 0 amappl1 72 23079 0 22633 23 13 10 18 0 8 0 amappl 80 1764 0 1719 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 13 1 0 1 1 0 8 0 uaddrrnd 24 619 0 602 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 619 0 602 1 0 1 1 0 8 0 vmmpekpl 168 8665 0 8631 2 0 2 2 0 8 0 vmmpepl 168 81245 0 79133 119 24 95 115 0 357 3 vmsppl 368 618 0 602 2 0 2 2 0 8 0 pdppl 4096 1245 0 1204 6 0 6 6 0 8 0 pvpl 32 212342 0 192827 182 3 179 179 0 265 20 pmappl 232 618 0 602 2 1 1 2 0 8 0 extentpl 40 53 0 36 1 0 1 1 0 8 0 phpool 112 286 0 9 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(ffffffff826eaff0) 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 __mp_lock(ffffffff828c2938) at __mp_lock+0x127 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff828c2938) at __mp_lock+0x127 sys/kern/kern_lock.c:147 softintr_dispatch(0) at softintr_dispatch+0x4e sys/arch/amd64/amd64/softintr.c:89 Xsoftclock() at Xsoftclock+0x1f __mp_lock(ffffffff828c2938) at __mp_lock+0x127 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff828c2938) at __mp_lock+0x127 sys/kern/kern_lock.c:147 pageflttrap(ffff800020ea3980,1) at pageflttrap+0x7f sys/arch/amd64/amd64/trap.c:180 usertrap(ffff800020ea3980) at usertrap+0x21a sys/arch/amd64/amd64/trap.c:384 recall_trap() at recall_trap+0x8 end of kernel end trace frame: 0xc00016df30, count: -10 ddb{0}> machine ddbcpu 1 Stopped at pool_cache_get+0x1b1: movq 0x10(%r14),%r13 ddb{1}> trace pool_cache_get(ffffffff828c2ff0) at pool_cache_get+0x1b1 pool_cache_item_magic_check sys/kern/subr_pool.c:1770 [inline] pool_cache_get(ffffffff828c2ff0) at pool_cache_get+0x1b1 sys/kern/subr_pool.c:1884 pool_get(ffffffff828c2ff0,1) at pool_get+0x91 sys/kern/subr_pool.c:572 m_get(1,4) at m_get+0x4c sys/kern/uipc_mbuf.c:250 sys_setsockopt(ffff800020e47398,ffff800020ed79d8,ffff800020ed7a20) at sys_setsockopt+0x12b sys/kern/uipc_syscalls.c:944 syscall(ffff800020ed7aa0) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800020ed7aa0) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xb685cac06b0, count: -6