panic: pool_cache_item_magic_check: mbufpl cpu free list modified: item addr 0xfffffd8069ff4b00+16 0x0!=0x8a2b0981fbcaab95 Stopped at db_enter+0x18: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND *331823 91522 74 0x100012 0 1K pflogd 473253 41715 73 0x100010 0 0 syslogd db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398 panic(ffffffff8240ef1a) at panic+0x164 sys/kern/subr_prf.c:218 pool_cache_get(ffffffff82933910) at pool_cache_get+0x323 pool_cache_item_magic_check sys/kern/subr_pool.c:1781 [inline] pool_cache_get(ffffffff82933910) at pool_cache_get+0x323 sys/kern/subr_pool.c:1884 pool_get(ffffffff82933910,1) at pool_get+0x91 sys/kern/subr_pool.c:572 m_gethdr(1,1) at m_gethdr+0x4c sys/kern/uipc_mbuf.c:283 m_getuio(ffff800020e5fe28,1,100000,ffff800020e5ff10) at m_getuio+0xe4 sys/kern/uipc_socket.c:587 sosend(fffffd806eaf1648,0,ffff800020e5ff10,0,0,0) at sosend+0x54e sys/kern/uipc_socket.c:542 dosendsyslog(ffff8000ffffeee0,7f7fffff8660,3d,0,0) at dosendsyslog+0x2b8 sys/kern/subr_log.c:517 sys_sendsyslog(ffff8000ffffeee0,ffff800020e600a0,ffff800020e600f0) at sys_sendsyslog+0x13e sys/kern/subr_log.c:437 syscall(ffff800020e60170) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800020e60170) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7fffffabe0, count: 4 https://www.openbsd.org/ddb.html describes the minimum info required in bug reports. Insufficient info makes it difficult to find and fix bugs. ddb{1}> ddb{1}> set $lines = 0 ddb{1}> set $maxwidth = 0 ddb{1}> show panic pool_cache_item_magic_check: mbufpl cpu free list modified: item addr 0xfffffd8069ff4b00+16 0x0!=0x8a2b0981fbcaab95 ddb{1}> trace db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398 panic(ffffffff8240ef1a) at panic+0x164 sys/kern/subr_prf.c:218 pool_cache_get(ffffffff82933910) at pool_cache_get+0x323 pool_cache_item_magic_check sys/kern/subr_pool.c:1781 [inline] pool_cache_get(ffffffff82933910) at pool_cache_get+0x323 sys/kern/subr_pool.c:1884 pool_get(ffffffff82933910,1) at pool_get+0x91 sys/kern/subr_pool.c:572 m_gethdr(1,1) at m_gethdr+0x4c sys/kern/uipc_mbuf.c:283 m_getuio(ffff800020e5fe28,1,100000,ffff800020e5ff10) at m_getuio+0xe4 sys/kern/uipc_socket.c:587 sosend(fffffd806eaf1648,0,ffff800020e5ff10,0,0,0) at sosend+0x54e sys/kern/uipc_socket.c:542 dosendsyslog(ffff8000ffffeee0,7f7fffff8660,3d,0,0) at dosendsyslog+0x2b8 sys/kern/subr_log.c:517 sys_sendsyslog(ffff8000ffffeee0,ffff800020e600a0,ffff800020e600f0) at sys_sendsyslog+0x13e sys/kern/subr_log.c:437 syscall(ffff800020e60170) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800020e60170) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7fffffabe0, count: -11 ddb{1}> show registers rdi 0 rsi 0x1 rbp 0xffff800020e5fb50 rbx 0xffff800020e5fc00 rdx 0x8b rcx 0x2 rax 0x1 r8 0xffff800020e5fb10 r9 0xffffffff8108ddff kprintf+0x16f r10 0x1 r11 0x8344499a5579cf9c r12 0x3000000008 r13 0xffff800020e5fb60 r14 0x100 r15 0x1 rip 0xffffffff822b91e8 db_enter+0x18 cs 0x8 rflags 0x246 rsp 0xffff800020e5fb40 ss 0x10 db_enter+0x18: addq $0x8,%rsp ddb{1}> show proc PROC (pflogd) pid=331823 stat=onproc flags process=100012 proc=0 pri=50, usrpri=51, nice=20 forw=0xffffffffffffffff, list=0xffff8000fffff158,0xffff8000fffff658 process=0xffff8000ffffcfc0 user=0xffff800020e5b000, vmspace=0xfffffd806e9002e8 estcpu=1, cpticks=2, pctcpu=0.0 user=0, sys=2, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 26853 474838 17765 0 2 0 syz-executor.1 26853 117937 17765 0 2 0x4000000 syz-executor.1 26853 198817 17765 0 3 0x4000080 fsleep syz-executor.1 26853 368343 17765 0 2 0x4000000 syz-executor.1 41134 137581 45143 0 2 0 syz-executor.0 41134 99137 45143 0 3 0x4000080 fsleep syz-executor.0 41134 76585 45143 0 3 0x4000080 bell syz-executor.0 45143 261541 55031 0 3 0x82 nanosleep syz-executor.0 18835 366146 0 0 3 0x14200 bored sosplice 78584 318761 0 0 3 0x14280 nfsidl nfsio 61010 329740 0 0 3 0x14280 nfsidl nfsio 89171 286615 0 0 3 0x14280 nfsidl nfsio 64959 378146 0 0 3 0x14280 nfsidl nfsio 92443 275418 0 0 3 0x14280 nfsidl nfsio 3355 35049 0 0 3 0x14280 nfsidl nfsio 10242 485512 0 0 3 0x14280 nfsidl nfsio 84329 485761 0 0 3 0x14280 nfsidl nfsio 13414 476008 0 0 3 0x14280 nfsidl nfsio 92605 492457 0 0 3 0x14280 nfsidl nfsio 71306 218295 0 0 3 0x14280 nfsidl nfsio 6237 423077 0 0 3 0x14280 nfsidl nfsio 97545 384235 0 0 3 0x14280 nfsidl nfsio 1254 325423 0 0 3 0x14280 nfsidl nfsio 37569 11991 0 0 3 0x14280 nfsidl nfsio 84244 357917 0 0 3 0x14280 nfsidl nfsio 28741 458794 0 0 3 0x14280 nfsidl nfsio 31344 164853 0 0 3 0x14280 nfsidl nfsio 52785 14493 0 0 3 0x14280 nfsidl nfsio 93726 410630 0 0 3 0x14280 nfsidl nfsio 17765 442499 55031 0 3 0x82 nanosleep syz-executor.1 55031 356590 94030 0 3 0x82 kqread syz-fuzzer 55031 337971 94030 0 3 0x4000082 thrsleep syz-fuzzer 55031 253791 94030 0 3 0x4000082 thrsleep syz-fuzzer 55031 344718 94030 0 3 0x4000082 thrsleep syz-fuzzer 55031 503863 94030 0 3 0x4000082 thrsleep syz-fuzzer 55031 342803 94030 0 3 0x4000082 thrsleep syz-fuzzer 55031 35685 94030 0 3 0x4000082 thrsleep syz-fuzzer 55031 370381 94030 0 3 0x4000082 thrsleep syz-fuzzer 94030 160151 34036 0 3 0x10008a pause ksh 34036 257027 3769 0 3 0x92 select sshd 96620 239781 1 0 3 0x100083 ttyin getty 3769 301514 1 0 3 0x80 select sshd *91522 331823 38055 74 7 0x100012 pflogd 38055 485618 1 0 3 0x80 netio pflogd 41715 473253 82229 73 7 0x100010 syslogd 82229 302 1 0 3 0x100082 netio syslogd 26554 337470 1 77 3 0x100090 poll dhclient 66878 180095 1 0 3 0x80 poll dhclient 62174 88689 0 0 3 0x14200 bored smr 36236 11609 0 0 2 0x14200 zerothread 38741 393326 0 0 3 0x14200 aiodoned aiodoned 87186 399487 0 0 3 0x14200 syncer update 76378 204636 0 0 3 0x14200 cleaner cleaner 81300 15036 0 0 3 0x14200 reaper reaper 15405 405757 0 0 3 0x14200 pgdaemon pagedaemon 62183 385761 0 0 3 0x14200 bored crynlk 38115 438950 0 0 3 0x14200 bored crypto 42448 50261 0 0 3 0x40014200 acpi0 acpi0 11720 375578 0 0 3 0x40014200 idle1 59763 410696 0 0 3 0x14200 bored softnet 75528 244177 0 0 3 0x14200 bored systqmp 7930 479306 0 0 3 0x14200 bored systq 60306 327757 0 0 3 0x40014200 bored softclock 44099 375688 0 0 3 0x40014200 idle0 1 287268 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 91522 (pflogd) thread 0xffff8000ffffeee0 (331823) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff82933348) #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 9520 6441K 7980K 78643K 27445 0 pcb 13 8K 8K 78643K 111 0 rtable 103 3K 5K 78643K 440 0 ifaddr 79 16K 16K 78643K 155 0 sysctl 2 0K 0K 78643K 2 0 counters 43 33K 34K 78643K 57 0 ioctlops 0 0K 4K 78643K 3908 0 iov 0 0K 12K 78643K 122 0 mount 1 1K 1K 78643K 1 0 vnodes 1240 78K 78K 78643K 4362 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 34 0 VM map 2 1K 1K 78643K 2 0 sem 10 1K 1K 78643K 14 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1824 197K 290K 78643K 13058 0 file desc 6 17K 25K 78643K 7037 0 sigio 0 0K 0K 78643K 57 0 proc 61 63K 95K 78643K 650 0 subproc 32 2K 2K 78643K 68 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 57 0 in_multi 64 3K 3K 78643K 201 0 ether_multi 1 0K 0K 78643K 17 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 310 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 214 46K 61K 78643K 19156 0 UVM aobj 82 8K 8K 78643K 134 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 645 0 NDP 12 0K 0K 78643K 42 0 temp 133 3874K 3940K 78643K 26610 0 kqueue 3 4K 12K 78643K 31 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 12 0 6 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 88 72 0 70 1 0 1 1 0 8 0 rtentry 112 106 0 65 2 0 2 2 0 8 0 unpcb 120 1720 0 1708 2 1 1 2 0 8 0 syncache 272 5 0 5 2 2 0 1 0 8 0 tcpqe 32 161 0 161 1 1 0 1 0 8 0 tcpcb 592 1290 0 1282 12 10 2 5 0 8 0 inpcb 296 4262 0 4255 9 7 2 2 0 8 1 nd6 48 33 0 29 1 0 1 1 0 8 0 pkpcb 40 2 0 2 1 1 0 1 0 8 0 pffrag 232 7 0 6 2 1 1 1 0 482 0 pffrnode 88 7 0 6 2 1 1 1 0 8 0 pffrent 40 102 0 101 3 2 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 4 0 4 1 1 0 1 0 8 0 pfstitem 24 26 0 24 1 0 1 1 0 8 0 pfstkey 112 26 0 24 1 0 1 1 0 8 0 pfstate 328 26 0 24 2 1 1 2 0 8 0 pfsrctr 152 24 0 24 1 1 0 1 0 8 0 pfrule 1360 26 0 25 2 1 1 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 406 0 231 16 5 11 14 0 8 0 art_table 32 407 0 231 2 0 2 2 0 8 0 art_node 16 105 0 67 1 0 1 1 0 8 0 sysvmsgpl 40 30 0 9 1 0 1 1 0 8 0 semupl 112 2 0 2 1 1 0 1 0 8 0 semapl 112 10 0 2 1 0 1 1 0 8 0 shmpl 112 131 0 52 3 0 3 3 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 8891 0 7491 89 0 89 89 0 8 0 ffsino 272 8891 0 7491 94 0 94 94 0 8 0 nchpl 144 17925 0 16328 60 0 60 60 0 8 0 uvmvnodes 72 5926 0 0 108 0 108 108 0 8 0 vnodes 208 5926 0 0 312 0 312 312 0 8 0 namei 1024 56882 0 56882 4 3 1 1 0 8 1 percpumem 16 39 0 7 1 0 1 1 0 8 0 vcpupl 1984 2 0 0 1 0 1 1 0 8 0 vmpool 560 10 0 8 2 1 1 1 0 8 0 pfiaddrpl 120 2 0 2 1 1 0 1 0 8 0 scsiplug 72 1 0 1 1 1 0 1 0 8 0 scxspl 200 53959 0 53959 13 12 1 7 0 8 1 plimitpl 152 91 0 83 1 0 1 1 0 8 0 sigapl 424 7269 0 7216 8 2 6 7 0 8 0 futexpl 56 60422 0 60420 4 3 1 1 0 8 0 knotepl 112 128 0 108 1 0 1 1 0 8 0 kqueuepl 152 137 0 134 1 0 1 1 0 8 0 pipepl 304 451 0 437 9 7 2 2 0 8 0 fdescpl 496 7231 0 7214 3 0 3 3 0 8 0 filepl 152 35091 0 34976 7 2 5 6 0 8 0 lockfpl 104 590 0 589 1 0 1 1 0 8 0 lockfspl 48 205 0 204 1 0 1 1 0 8 0 sessionpl 120 20 0 9 1 0 1 1 0 8 0 pgrppl 48 36 0 25 1 0 1 1 0 8 0 ucredpl 96 1137 0 1127 1 0 1 1 0 8 0 zombiepl 144 7216 0 7216 2 1 1 1 0 8 1 processpl 1008 7269 0 7216 7 0 7 7 0 8 0 procpl 632 18204 0 18139 6 0 6 6 0 8 0 sosppl 144 6 0 6 2 2 0 1 0 8 0 sockpl 400 6059 0 6038 10 7 3 6 0 8 0 mcl64k 65536 17 0 0 3 0 3 3 0 8 0 mcl16k 16384 5 0 0 1 0 1 1 0 8 0 mcl12k 12288 25 0 0 2 0 2 2 0 8 0 mcl9k 9216 19 0 0 2 0 2 2 0 8 0 mcl8k 8192 17 0 0 3 0 3 3 0 8 0 mcl4k 4096 17 0 0 3 0 3 3 0 8 0 mcl2k2 2112 8 0 0 1 0 1 1 0 8 0 mcl2k 2048 332 0 0 41 1 40 41 0 8 0 mtagpl 96 81 0 0 2 0 2 2 0 8 0 mbufpl 256 580 0 0 28 0 28 28 0 8 0 bufpl 280 11338 0 5101 446 0 446 446 0 8 0 anonpl 16 501775 0 484069 123 36 87 88 0 124 13 amapchunkpl 152 31477 0 31182 45 32 13 25 0 158 0 amappl16 192 28180 0 27332 79 28 51 55 0 8 8 amappl15 184 1 0 1 1 1 0 1 0 8 0 amappl14 176 4048 0 4042 1 0 1 1 0 8 0 amappl13 168 1082 0 1079 1 0 1 1 0 8 0 amappl12 160 1067 0 1060 1 0 1 1 0 8 0 amappl11 152 599 0 582 1 0 1 1 0 8 0 amappl10 144 19 0 17 1 0 1 1 0 8 0 amappl9 136 378 0 376 1 0 1 1 0 8 0 amappl8 128 505 0 435 3 0 3 3 0 8 0 amappl7 120 136 0 124 1 0 1 1 0 8 0 amappl6 112 568 0 559 1 0 1 1 0 8 0 amappl5 104 4724 0 4708 1 0 1 1 0 8 0 amappl4 96 2101 0 2068 1 0 1 1 0 8 0 amappl3 88 4274 0 4264 1 0 1 1 0 8 0 amappl2 80 48741 0 48664 2 0 2 2 0 8 0 amappl1 72 182686 0 182191 23 13 10 18 0 8 0 amappl 80 18517 0 18428 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 64 133 0 52 2 0 2 2 0 8 0 uaddrrnd 24 7241 0 7222 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 7241 0 7222 1 0 1 1 0 8 0 vmmpekpl 168 35112 0 35064 3 0 3 3 0 8 0 vmmpepl 168 852186 0 849944 204 89 115 127 0 357 17 vmsppl 368 7240 0 7222 2 0 2 2 0 8 0 pdppl 4096 14489 0 14446 8 2 6 6 0 8 0 pvpl 32 1709134 0 1687950 303 99 204 207 0 265 31 pmappl 232 7240 0 7222 3 1 2 2 0 8 0 extentpl 40 53 0 36 1 0 1 1 0 8 0 phpool 112 312 0 23 9 0 9 9 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x1a: addq $0x8,%rsp x86_ipi_db(ffffffff82785ff0) 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(ffffffff82933140) at __mp_lock+0x127 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82933140) 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(ffffffff82933140) at __mp_lock+0x127 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82933140) at __mp_lock+0x127 sys/kern/kern_lock.c:147 solock(fffffd806eaf17d8) at solock+0x66 sys/kern/uipc_socket2.c:292 soreceive(fffffd806eaf17d8,ffff800020e526e0,ffff800020e526a8,0,0,ffff800020e527d4) at soreceive+0xb3a sys/kern/uipc_socket.c:956 recvit(ffff8000ffffe288,8,ffff800020e527a8,7f7ffffc3784,ffff800020e52890) at recvit+0x32b sys/kern/uipc_syscalls.c:817 sys_recvfrom(ffff8000ffffe288,ffff800020e52840,ffff800020e52890) at sys_recvfrom+0xd0 sys/kern/uipc_syscalls.c:717 syscall(ffff800020e52910) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800020e52910) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffc3700, count: 2 ddb{0}> trace x86_ipi_db(ffffffff82785ff0) 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(ffffffff82933140) at __mp_lock+0x127 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82933140) 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(ffffffff82933140) at __mp_lock+0x127 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82933140) at __mp_lock+0x127 sys/kern/kern_lock.c:147 solock(fffffd806eaf17d8) at solock+0x66 sys/kern/uipc_socket2.c:292 soreceive(fffffd806eaf17d8,ffff800020e526e0,ffff800020e526a8,0,0,ffff800020e527d4) at soreceive+0xb3a sys/kern/uipc_socket.c:956 recvit(ffff8000ffffe288,8,ffff800020e527a8,7f7ffffc3784,ffff800020e52890) at recvit+0x32b sys/kern/uipc_syscalls.c:817 sys_recvfrom(ffff8000ffffe288,ffff800020e52840,ffff800020e52890) at sys_recvfrom+0xd0 sys/kern/uipc_syscalls.c:717 syscall(ffff800020e52910) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800020e52910) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffc3700, count: -13 ddb{0}> machine ddbcpu 1 Stopped at db_enter+0x18: addq $0x8,%rsp db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398 panic(ffffffff8240ef1a) at panic+0x164 sys/kern/subr_prf.c:218 pool_cache_get(ffffffff82933910) at pool_cache_get+0x323 pool_cache_item_magic_check sys/kern/subr_pool.c:1781 [inline] pool_cache_get(ffffffff82933910) at pool_cache_get+0x323 sys/kern/subr_pool.c:1884 pool_get(ffffffff82933910,1) at pool_get+0x91 sys/kern/subr_pool.c:572 m_gethdr(1,1) at m_gethdr+0x4c sys/kern/uipc_mbuf.c:283 m_getuio(ffff800020e5fe28,1,100000,ffff800020e5ff10) at m_getuio+0xe4 sys/kern/uipc_socket.c:587 sosend(fffffd806eaf1648,0,ffff800020e5ff10,0,0,0) at sosend+0x54e sys/kern/uipc_socket.c:542 dosendsyslog(ffff8000ffffeee0,7f7fffff8660,3d,0,0) at dosendsyslog+0x2b8 sys/kern/subr_log.c:517 sys_sendsyslog(ffff8000ffffeee0,ffff800020e600a0,ffff800020e600f0) at sys_sendsyslog+0x13e sys/kern/subr_log.c:437 syscall(ffff800020e60170) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800020e60170) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7fffffabe0, count: 4 ddb{1}> trace db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398 panic(ffffffff8240ef1a) at panic+0x164 sys/kern/subr_prf.c:218 pool_cache_get(ffffffff82933910) at pool_cache_get+0x323 pool_cache_item_magic_check sys/kern/subr_pool.c:1781 [inline] pool_cache_get(ffffffff82933910) at pool_cache_get+0x323 sys/kern/subr_pool.c:1884 pool_get(ffffffff82933910,1) at pool_get+0x91 sys/kern/subr_pool.c:572 m_gethdr(1,1) at m_gethdr+0x4c sys/kern/uipc_mbuf.c:283 m_getuio(ffff800020e5fe28,1,100000,ffff800020e5ff10) at m_getuio+0xe4 sys/kern/uipc_socket.c:587 sosend(fffffd806eaf1648,0,ffff800020e5ff10,0,0,0) at sosend+0x54e sys/kern/uipc_socket.c:542 dosendsyslog(ffff8000ffffeee0,7f7fffff8660,3d,0,0) at dosendsyslog+0x2b8 sys/kern/subr_log.c:517 sys_sendsyslog(ffff8000ffffeee0,ffff800020e600a0,ffff800020e600f0) at sys_sendsyslog+0x13e sys/kern/subr_log.c:437 syscall(ffff800020e60170) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800020e60170) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7fffffabe0, count: -11