""""""""panic: poWoARlN_IcNaGc:h eS_iPtL eNmO_Tm aLOgWiEcR_cEDh eOcNk : SYmSbCufApLlL c1p0u -f2r0ee58 2li4s EtX ImTo di0 fi9 e d:Stopped at savectx+0xb1: movl $0,%gs:0x530 TID PID UID PRFLAGS PFLAGS CPU COMMAND * 74615 13810 0 0x2 0 0 syz-executor.1 60337 20185 0 0x12 0 1 sshd savectx() at savectx+0xb1 end of kernel end trace frame: 0x7f7ffffce0b0, count: 14 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{0}> ddb{0}> set $lines = 0 ddb{0}> set $maxwidth = 0 ddb{0}> show panic pool_cache_item_magic_check: mbufpl cpu free list modified: item addr 0xfffffd8067295200+16 0x0!=0x13924ee2958ede84 ddb{0}> trace savectx() at savectx+0xb1 end of kernel end trace frame: 0x7f7ffffce0b0, count: -1 ddb{0}> show registers rdi 0 rsi 0 rbp 0xffff800023104550 rbx 0 rdx 0x8b rcx 0x2 rax 0x38 r8 0xffffffff817fa50f kprintf+0x16f r9 0x1 r10 0x2 r11 0xfce5d92460e99143 r12 0 r13 0 r14 0xffff800020e0aae8 r15 0 rip 0xffffffff81f323f1 savectx+0xb1 cs 0x8 rflags 0x46 rsp 0xffff8000231044d0 ss 0x10 savectx+0xb1: movl $0,%gs:0x530 ddb{0}> show proc PROC (syz-executor.1) pid=74615 stat=onproc flags process=2 proc=0 pri=17, usrpri=80, nice=20 forw=0xffffffffffffffff, list=0xffff800020ddc278,0xffff800020e0a888 process=0xffff800020df07d0 user=0xffff8000230ff000, vmspace=0xfffffd807f000000 estcpu=36, cpticks=4, pctcpu=0.25 user=0, sys=1, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 56210 226072 5367 0 3 0x80 nanosleep syz-executor.0 56210 393473 5367 0 3 0x4000080 ttyout syz-executor.0 56210 42616 5367 0 3 0x4000080 fsleep syz-executor.0 69464 107382 0 0 3 0x14200 acct acct 5367 356066 98987 0 3 0x82 nanosleep syz-executor.0 60423 184149 0 0 3 0x14280 nfsidl nfsio 60542 318860 0 0 3 0x14280 nfsidl nfsio 13262 427657 0 0 3 0x14280 nfsidl nfsio 76120 504321 0 0 3 0x14280 nfsidl nfsio 18316 241369 0 0 3 0x14280 nfsidl nfsio 9162 22358 0 0 3 0x14280 nfsidl nfsio 89848 458314 0 0 3 0x14280 nfsidl nfsio 30878 252797 0 0 3 0x14280 nfsidl nfsio 16106 481402 0 0 3 0x14280 nfsidl nfsio 55947 169977 0 0 3 0x14280 nfsidl nfsio 51887 302684 0 0 3 0x14280 nfsidl nfsio 41880 220345 0 0 3 0x14280 nfsidl nfsio 36124 167343 0 0 3 0x14280 nfsidl nfsio 23099 418108 0 0 3 0x14280 nfsidl nfsio 60841 5484 0 0 3 0x14280 nfsidl nfsio 72805 167009 0 0 3 0x14280 nfsidl nfsio 81763 153548 0 0 3 0x14280 nfsidl nfsio 86015 276993 0 0 3 0x14280 nfsidl nfsio 51782 407404 0 0 3 0x14280 nfsidl nfsio 4039 30431 0 0 3 0x14280 nfsidl nfsio 78946 309215 0 0 3 0x14200 bored sosplice *13810 74615 98987 0 7 0x2 syz-executor.1 98987 281831 99423 0 3 0x82 thrsleep syz-fuzzer 98987 517283 99423 0 3 0x4000082 nanosleep syz-fuzzer 98987 74552 99423 0 3 0x4000082 thrsleep syz-fuzzer 98987 201469 99423 0 3 0x4000082 thrsleep syz-fuzzer 98987 82154 99423 0 3 0x4000082 thrsleep syz-fuzzer 98987 474256 99423 0 3 0x4000082 nanosleep syz-fuzzer 98987 154714 99423 0 3 0x4000082 thrsleep syz-fuzzer 98987 90349 99423 0 3 0x4000082 thrsleep syz-fuzzer 98987 67641 99423 0 3 0x4000082 thrsleep syz-fuzzer 98987 424717 99423 0 3 0x4000082 kqread syz-fuzzer 99423 71498 20185 0 3 0x10008a pause ksh 20185 60337 15064 0 7 0x12 sshd 60428 311583 1 0 3 0x100083 ttyin getty 15064 148048 1 0 3 0x80 select sshd 42130 162316 24567 74 3 0x100092 bpf pflogd 24567 249171 1 0 3 0x80 netio pflogd 23225 236203 84894 73 3 0x100090 kqread syslogd 84894 21244 1 0 3 0x100082 netio syslogd 59680 252009 1 77 3 0x100090 poll dhclient 28989 399095 1 0 3 0x80 poll dhclient 32830 151249 0 0 3 0x14200 bored smr 97655 460636 0 0 3 0x14200 pgzero zerothread 58441 477340 0 0 3 0x14200 aiodoned aiodoned 78231 179328 0 0 3 0x14200 syncer update 92842 114813 0 0 3 0x14200 cleaner cleaner 60050 225907 0 0 3 0x14200 reaper reaper 10596 56263 0 0 3 0x14200 pgdaemon pagedaemon 75569 4191 0 0 3 0x14200 bored crynlk 56644 106488 0 0 3 0x14200 bored crypto 86208 441215 0 0 3 0x40014200 acpi0 acpi0 1540 332242 0 0 3 0x40014200 idle1 24916 64036 0 0 3 0x14200 bored softnet 18453 256353 0 0 3 0x14200 bored systqmp 94582 509996 0 0 3 0x14200 bored systq 85786 164508 0 0 3 0x40014200 bored softclock 52297 394881 0 0 3 0x40014200 idle0 1 464570 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks CPU 0: exclusive mutex &iopl->mtx r = 0 (0xffff800000038168) #0 witness_lock+0x4c7 stacktrace_save sys/sys/stacktrace.h:36 [inline] #0 witness_lock+0x4c7 sys/kern/subr_witness.c:1164 #1 mtx_enter_try+0x102 #2 mtx_enter+0x4b sys/kern/kern_lock.c:266 #3 scsi_iopool_run+0xcf scsi_ioh_deq sys/scsi/scsi_base.c:389 [inline] #3 scsi_iopool_run+0xcf sys/scsi/scsi_base.c:425 #4 scsi_xsh_runqueue+0x210 sys/scsi/scsi_base.c:596 #5 scsi_xsh_add+0xc9 sys/scsi/scsi_base.c:535 #6 sdstrategy+0x187 sys/scsi/sd.c:585 #7 spec_strategy+0x74 sys/kern/spec_vnops.c:473 #8 VOP_STRATEGY+0x99 sys/kern/vfs_vops.c:712 #9 bwrite+0x1ea sys/kern/vfs_bio.c:762 #10 ffs_update+0x2c2 sys/ufs/ffs/ffs_inode.c:113 #11 ffs_truncate+0xc76 #12 ufs_inactive+0x155 sys/ufs/ufs/ufs_inode.c:84 #13 VOP_INACTIVE+0xaa sys/kern/vfs_vops.c:573 #14 vput+0xb6 sys/kern/vfs_subr.c:771 #15 ufs_remove+0x137 sys/ufs/ufs/ufs_vnops.c:618 #16 VOP_REMOVE+0x11f sys/kern/vfs_vops.c:379 #17 dounlinkat+0x195 sys/kern/vfs_syscalls.c:1889 #18 syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] #18 syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Process 13810 (syz-executor.1) thread 0xffff800020e0aae8 (74615) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff828b55a0) #0 witness_lock+0x4c7 stacktrace_save sys/sys/stacktrace.h:36 [inline] #0 witness_lock+0x4c7 sys/kern/subr_witness.c:1164 #1 __mp_acquire_count+0x51 sys/kern/kern_lock.c:227 #2 mi_switch+0x392 sys/kern/sched_bsd.c:435 #3 sleep_finish+0x113 sys/kern/kern_synch.c:418 #4 sleep_finish_all+0x32 sleep_finish_timeout sys/kern/kern_synch.c:447 [inline] #4 sleep_finish_all+0x32 sys/kern/kern_synch.c:393 #5 tsleep+0x1cc sys/kern/kern_synch.c:155 #6 biowait+0xa6 sys/kern/vfs_bio.c:1262 #7 bwrite+0x215 sys/kern/vfs_bio.c:771 #8 ufs_dirremove+0x291 #9 ufs_remove+0x154 sys/ufs/ufs/ufs_vnops.c:611 #10 VOP_REMOVE+0x11f sys/kern/vfs_vops.c:379 #11 dounlinkat+0x195 sys/kern/vfs_syscalls.c:1889 #12 syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] #12 syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 #13 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd807b8e10a0) #0 witness_lock+0x4c7 stacktrace_save sys/sys/stacktrace.h:36 [inline] #0 witness_lock+0x4c7 sys/kern/subr_witness.c:1164 #1 rw_enter+0x453 sys/kern/kern_rwlock.c:311 #2 rrw_enter+0x88 sys/kern/kern_rwlock.c:462 #3 VOP_LOCK+0x4b sys/kern/vfs_vops.c:603 #4 vn_lock+0x81 sys/kern/vfs_vnops.c:575 #5 vget+0x1c8 sys/kern/vfs_subr.c:671 #6 ufs_ihashget+0x141 sys/ufs/ufs/ufs_ihash.c:119 #7 ffs_vget+0x74 sys/ufs/ffs/ffs_vfsops.c:1329 #8 ufs_lookup+0x14b7 sys/ufs/ufs/ufs_lookup.c:487 #9 VOP_LOOKUP+0x5b sys/kern/vfs_vops.c:90 #10 vfs_lookup+0x7a6 sys/kern/vfs_lookup.c:568 #11 namei+0x63c sys/kern/vfs_lookup.c:249 #12 dounlinkat+0x99 sys/kern/vfs_syscalls.c:1853 #13 syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] #13 syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 #14 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806b202e68) #0 witness_lock+0x4c7 stacktrace_save sys/sys/stacktrace.h:36 [inline] #0 witness_lock+0x4c7 sys/kern/subr_witness.c:1164 #1 rw_enter+0x453 sys/kern/kern_rwlock.c:311 #2 rrw_enter+0x88 sys/kern/kern_rwlock.c:462 #3 VOP_LOCK+0x4b sys/kern/vfs_vops.c:603 #4 vn_lock+0x81 sys/kern/vfs_vnops.c:575 #5 vget+0x1c8 sys/kern/vfs_subr.c:671 #6 cache_lookup+0x2bb sys/kern/vfs_cache.c:224 #7 ufs_lookup+0x1bc sys/ufs/ufs/ufs_lookup.c:162 #8 VOP_LOOKUP+0x5b sys/kern/vfs_vops.c:90 #9 vfs_lookup+0x7a6 sys/kern/vfs_lookup.c:568 #10 namei+0x63c sys/kern/vfs_lookup.c:249 #11 dounlinkat+0x99 sys/kern/vfs_syscalls.c:1853 #12 syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] #12 syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 #13 Xsyscall+0x128 exclusive mutex &iopl->mtx r = 0 (0xffff800000038168) #0 witness_lock+0x4c7 stacktrace_save sys/sys/stacktrace.h:36 [inline] #0 witness_lock+0x4c7 sys/kern/subr_witness.c:1164 #1 mtx_enter_try+0x102 #2 mtx_enter+0x4b sys/kern/kern_lock.c:266 #3 scsi_iopool_run+0xcf scsi_ioh_deq sys/scsi/scsi_base.c:389 [inline] #3 scsi_iopool_run+0xcf sys/scsi/scsi_base.c:425 #4 scsi_xsh_runqueue+0x210 sys/scsi/scsi_base.c:596 #5 scsi_xsh_add+0xc9 sys/scsi/scsi_base.c:535 #6 sdstrategy+0x187 sys/scsi/sd.c:585 #7 spec_strategy+0x74 sys/kern/spec_vnops.c:473 #8 VOP_STRATEGY+0x99 sys/kern/vfs_vops.c:712 #9 bwrite+0x1ea sys/kern/vfs_bio.c:762 #10 ffs_update+0x2c2 sys/ufs/ffs/ffs_inode.c:113 #11 ffs_truncate+0xc76 #12 ufs_inactive+0x155 sys/ufs/ufs/ufs_inode.c:84 #13 VOP_INACTIVE+0xaa sys/kern/vfs_vops.c:573 #14 vput+0xb6 sys/kern/vfs_subr.c:771 #15 ufs_remove+0x137 sys/ufs/ufs/ufs_vnops.c:618 #16 VOP_REMOVE+0x11f sys/kern/vfs_vops.c:379 #17 dounlinkat+0x195 sys/kern/vfs_syscalls.c:1889 #18 syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] #18 syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Process 20185 (sshd) thread 0xffff800020e40600 (60337) 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 sosend+0x559 sys/kern/uipc_socket.c:543 #3 dofilewritev+0x1b6 sys/kern/sys_generic.c:365 #4 sys_write+0x83 sys/kern/sys_generic.c:285 #5 syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] #5 syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 #6 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 9538 6438K 6819K 78643K 11729 0 pcb 13 8K 8K 78643K 91 0 rtable 105 4K 6K 78643K 516 0 ifaddr 84 16K 16K 78643K 198 0 sysctl 2 0K 0K 78643K 2 0 counters 43 33K 34K 78643K 61 0 ioctlops 0 0K 4K 78643K 1526 0 iov 0 0K 16K 78643K 317 0 mount 1 1K 1K 78643K 1 0 vnodes 1223 77K 77K 78643K 1680 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 19 0 VM map 2 1K 1K 78643K 2 0 sem 12 0K 0K 78643K 176 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1824 197K 290K 78643K 13058 0 file desc 5 13K 25K 78643K 1101 0 sigio 0 0K 0K 78643K 4 0 proc 61 63K 83K 78643K 642 0 subproc 32 2K 2K 78643K 85 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 43 0 in_multi 54 2K 3K 78643K 219 0 ether_multi 1 0K 0K 78643K 15 0 mrt 0 0K 0K 78643K 4 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 301 0 pfkey data 0 0K 1K 78643K 1 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 123 39K 41K 78643K 4348 0 UVM aobj 47 6K 6K 78643K 54 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 80 0 NDP 14 0K 0K 78643K 52 0 temp 140 3866K 3943K 78643K 23543 0 kqueue 3 4K 8K 78643K 18 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 12 0 6 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 80 57 0 55 1 0 1 1 0 8 0 rtentry 112 125 0 84 2 0 2 2 0 8 0 unpcb 120 303 0 293 1 0 1 1 0 8 0 syncache 264 13 0 13 3 3 0 1 0 8 0 tcpqe 32 68 0 68 1 1 0 1 0 8 0 tcpcb 544 244 0 240 2 1 1 2 0 8 0 inpcb 296 758 0 751 5 3 2 2 0 8 1 rttmr 72 2 0 2 1 1 0 1 0 8 0 nd6 48 38 0 34 1 0 1 1 0 8 0 pkpcb 40 6 0 6 3 2 1 1 0 8 1 pffrag 232 3 0 2 2 1 1 1 0 482 0 pffrnode 88 3 0 2 2 1 1 1 0 8 0 pffrent 40 7 0 6 3 2 1 1 0 8 0 pfosfp 40 848 0 423 5 0 5 5 0 8 0 pfosfpen 112 1431 0 714 21 0 21 21 0 8 0 pfrktable 1344 7 0 6 1 0 1 1 0 8 0 pfstitem 24 18 0 16 1 0 1 1 0 8 0 pfstkey 112 18 0 16 1 0 1 1 0 8 0 pfstate 328 18 0 16 2 1 1 2 0 8 0 pfrule 1360 24 0 18 2 1 1 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 480 0 304 14 1 13 13 0 8 0 art_table 32 481 0 304 2 0 2 2 0 8 0 art_node 16 124 0 86 1 0 1 1 0 8 0 sysvmsgpl 40 60 0 29 1 0 1 1 0 8 0 semapl 112 174 0 164 1 0 1 1 0 8 0 shmpl 112 51 0 8 2 0 2 2 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 3100 0 1686 89 0 89 89 0 8 0 ffsino 272 3100 0 1686 95 0 95 95 0 8 0 nchpl 144 5511 0 3908 60 0 60 60 0 8 0 uvmvnodes 72 3383 0 0 62 0 62 62 0 8 0 vnodes 208 3383 0 0 179 0 179 179 0 8 0 namei 1024 14835 0 14835 4 3 1 1 0 8 1 percpumem 16 41 0 9 1 0 1 1 0 8 0 vcpupl 1984 1 0 0 1 0 1 1 0 8 0 vmpool 560 8 0 7 1 0 1 1 0 8 0 pfiaddrpl 120 2 0 2 1 1 0 1 0 8 0 scxspl 192 14643 0 14643 12 11 1 7 0 8 1 plimitpl 152 62 0 54 1 0 1 1 0 8 0 sigapl 424 1329 0 1276 7 0 7 7 0 8 0 futexpl 56 13561 0 13560 3 2 1 1 0 8 0 knotepl 112 121 0 102 1 0 1 1 0 8 0 kqueuepl 144 80 0 77 1 0 1 1 0 8 0 pipepl 304 190 0 180 3 2 1 2 0 8 0 fdescpl 496 1292 0 1276 3 0 3 3 0 8 0 filepl 152 7108 0 7005 7 2 5 5 0 8 0 lockfpl 104 197 0 196 1 0 1 1 0 8 0 lockfspl 48 59 0 58 1 0 1 1 0 8 0 sessionpl 112 21 0 10 1 0 1 1 0 8 0 pgrppl 48 31 0 20 1 0 1 1 0 8 0 ucredpl 96 581 0 572 1 0 1 1 0 8 0 zombiepl 144 1276 0 1276 2 1 1 1 0 8 1 processpl 992 1329 0 1276 7 0 7 7 0 8 0 procpl 624 3445 0 3381 6 0 6 6 0 8 0 sosppl 128 6 0 6 2 2 0 1 0 8 0 sockpl 400 1125 0 1106 6 3 3 4 0 8 1 mcl64k 65536 18 0 0 3 0 3 3 0 8 0 mcl16k 16384 5 0 0 1 0 1 1 0 8 0 mcl12k 12288 9 0 0 1 0 1 1 0 8 0 mcl9k 9216 15 0 0 2 0 2 2 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 2 0 0 1 0 1 1 0 8 0 mcl2k 2048 167 0 0 20 0 20 20 0 8 0 mtagpl 96 35 0 0 1 0 1 1 0 8 0 mbufpl 256 367 0 0 16 0 16 16 0 8 0 bufpl 280 6012 0 141 420 0 420 420 0 8 0 anonpl 16 146872 0 129826 93 18 75 85 0 124 0 amapchunkpl 152 7072 0 6919 15 8 7 14 0 158 0 amappl16 192 5846 0 4912 63 10 53 59 0 8 0 amappl15 184 188 0 187 2 1 1 1 0 8 0 amappl14 176 726 0 718 1 0 1 1 0 8 0 amappl13 168 143 0 140 1 0 1 1 0 8 0 amappl12 160 7 0 5 2 1 1 1 0 8 0 amappl11 152 562 0 546 1 0 1 1 0 8 0 amappl10 144 28 0 24 1 0 1 1 0 8 0 amappl9 136 389 0 387 1 0 1 1 0 8 0 amappl8 128 428 0 394 2 0 2 2 0 8 0 amappl7 120 145 0 131 1 0 1 1 0 8 0 amappl6 112 25 0 19 2 1 1 1 0 8 0 amappl5 104 698 0 682 1 0 1 1 0 8 0 amappl4 96 1141 0 1109 1 0 1 1 0 8 0 amappl3 88 853 0 846 1 0 1 1 0 8 0 amappl2 80 9390 0 9317 2 0 2 2 0 8 0 amappl1 72 46247 0 45784 23 13 10 18 0 8 0 amappl 80 3729 0 3683 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 53 0 7 1 0 1 1 0 8 0 uaddrrnd 24 1300 0 1283 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1300 0 1283 1 0 1 1 0 8 0 vmmpekpl 168 13034 0 12991 2 0 2 2 0 8 0 vmmpepl 168 173054 0 170925 174 63 111 129 0 357 13 vmsppl 368 1299 0 1283 2 0 2 2 0 8 0 pdppl 4096 2607 0 2567 6 0 6 6 0 8 0 pvpl 32 449888 0 429458 227 36 191 201 0 265 15 pmappl 232 1299 0 1283 4 2 2 2 0 8 0 extentpl 40 53 0 36 1 0 1 1 0 8 0 phpool 112 275 0 11 8 0 8 8 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace savectx() at savectx+0xb1 end of kernel end trace frame: 0x7f7ffffce0b0, count: -1 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x1a: addq $0x8,%rsp 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 x86_bus_space_io_write_1(3f8,0,3a) at x86_bus_space_io_write_1+0x45 sys/arch/amd64/amd64/bus_space.c:759 comcnputc(800,3a) at comcnputc+0x131 bus_space_barrier machine/bus.h:481 [inline] comcnputc(800,3a) at comcnputc+0x131 sys/dev/ic/com.c:1254 cnputc(3a) at cnputc+0x4c sys/dev/cons.c:239 kputchar(3a,5,0) at kputchar+0x219 sys/kern/subr_prf.c:343 kprintf() at kprintf+0x15c sys/kern/subr_prf.c:700 panic(ffffffff823fe066) at panic+0xf3 vprintf sys/kern/subr_prf.c:528 [inline] panic(ffffffff823fe066) at panic+0xf3 sys/kern/subr_prf.c:197 pool_cache_get(ffffffff828b5e40) at pool_cache_get+0x323 pool_cache_item_magic_check sys/kern/subr_pool.c:1781 [inline] pool_cache_get(ffffffff828b5e40) at pool_cache_get+0x323 sys/kern/subr_pool.c:1884 pool_get(ffffffff828b5e40,2) 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(ffff800000ad9ee0) at tcp_output+0x14e6 tcp_usrreq(fffffd806eaddaf8,9,fffffd807f01f900,0,0,ffff800020e40600) at tcp_usrreq+0xa55 end trace frame: 0xffff800020e04790, count: 0 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 x86_bus_space_io_write_1(3f8,0,3a) at x86_bus_space_io_write_1+0x45 sys/arch/amd64/amd64/bus_space.c:759 comcnputc(800,3a) at comcnputc+0x131 bus_space_barrier machine/bus.h:481 [inline] comcnputc(800,3a) at comcnputc+0x131 sys/dev/ic/com.c:1254 cnputc(3a) at cnputc+0x4c sys/dev/cons.c:239 kputchar(3a,5,0) at kputchar+0x219 sys/kern/subr_prf.c:343 kprintf() at kprintf+0x15c sys/kern/subr_prf.c:700 panic(ffffffff823fe066) at panic+0xf3 vprintf sys/kern/subr_prf.c:528 [inline] panic(ffffffff823fe066) at panic+0xf3 sys/kern/subr_prf.c:197 pool_cache_get(ffffffff828b5e40) at pool_cache_get+0x323 pool_cache_item_magic_check sys/kern/subr_pool.c:1781 [inline] pool_cache_get(ffffffff828b5e40) at pool_cache_get+0x323 sys/kern/subr_pool.c:1884 pool_get(ffffffff828b5e40,2) 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(ffff800000ad9ee0) at tcp_output+0x14e6 tcp_usrreq(fffffd806eaddaf8,9,fffffd807f01f900,0,0,ffff800020e40600) at tcp_usrreq+0xa55 sosend(fffffd806eaddaf8,0,ffff800020e04858,0,0,80) at sosend+0x671 sys/kern/uipc_socket.c:555 dofilewritev(ffff800020e40600,4,ffff800020e04858,0,ffff800020e04940) at dofilewritev+0x1b6 sys/kern/sys_generic.c:365 sys_write(ffff800020e40600,ffff800020e048f0,ffff800020e04940) at sys_write+0x83 sys/kern/sys_generic.c:285 syscall(ffff800020e049c0) at syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:102 [inline] syscall(ffff800020e049c0) at syscall+0x4a4 sys/arch/amd64/amd64/trap.c:570 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffe6400, count: -19