Warning: Permanently added '10.128.0.207' (ED25519) to the list of known hosts. executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program panic: acquiring blockable sleep lock with spinlock or critical section held (kernel_lock) &kernel_lock Stopped at db_enter+0x18: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND *335720 66269 0 0 0x4000000 1 syz-executor3787790407 263022 25669 0 0 0 0 syz-executor3787790407 db_enter() at db_enter+0x18 panic(ffffffff825a56b6) at panic+0x177 witness_checkorder(ffffffff82b47030,9,0) at witness_checkorder+0x116d __mp_lock(ffffffff82b46e28) at __mp_lock+0xa1 selwakeup(fffffd806dcd58b0) at selwakeup+0x16 sorwakeup(fffffd806dcd5798) at sorwakeup+0xc9 udp_sbappend(fffffd806f67aaf8,fffffd806e534900,fffffd806e5341b0,0,14,fffffd806e5341c4,17a838f1d7c02518,0) at udp_sbappend+0x3b1 udp_input(ffff80002122aa38,ffff80002122aa44,11,2) at udp_input+0xbcb ip_deliver(ffff80002122aa38,ffff80002122aa44,11,2) at ip_deliver+0x322 ip_ours(ffff80002122aa38,ffff80002122aa44,fffffd806e5341bc,0) at ip_ours+0x3ba ip_input_if(ffff80002122aa38,ffff80002122aa44,4,0,ffff800000689000) at ip_input_if+0x2a1 ipv4_input(ffff800000689000,fffffd806e534100) at ipv4_input+0x48 if_input_local(ffff800000689000,fffffd806e534100,2) at if_input_local+0x10e ip_output(fffffd807f00ec00,0,fffffd806f67a7c8,0,0,fffffd806f67a750,55108209fcf15a8b) at ip_output+0xb05 end trace frame: 0xffff80002122acb0, count: 0 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 *cpu1: acquiring blockable sleep lock with spinlock or critical section held (kernel_lock) &kernel_lock ddb{1}> trace db_enter() at db_enter+0x18 panic(ffffffff825a56b6) at panic+0x177 witness_checkorder(ffffffff82b47030,9,0) at witness_checkorder+0x116d __mp_lock(ffffffff82b46e28) at __mp_lock+0xa1 selwakeup(fffffd806dcd58b0) at selwakeup+0x16 sorwakeup(fffffd806dcd5798) at sorwakeup+0xc9 udp_sbappend(fffffd806f67aaf8,fffffd806e534900,fffffd806e5341b0,0,14,fffffd806e5341c4,17a838f1d7c02518,0) at udp_sbappend+0x3b1 udp_input(ffff80002122aa38,ffff80002122aa44,11,2) at udp_input+0xbcb ip_deliver(ffff80002122aa38,ffff80002122aa44,11,2) at ip_deliver+0x322 ip_ours(ffff80002122aa38,ffff80002122aa44,fffffd806e5341bc,0) at ip_ours+0x3ba ip_input_if(ffff80002122aa38,ffff80002122aa44,4,0,ffff800000689000) at ip_input_if+0x2a1 ipv4_input(ffff800000689000,fffffd806e534100) at ipv4_input+0x48 if_input_local(ffff800000689000,fffffd806e534100,2) at if_input_local+0x10e ip_output(fffffd807f00ec00,0,fffffd806f67a7c8,0,0,fffffd806f67a750,55108209fcf15a8b) at ip_output+0xb05 udp_output(fffffd806f67a750,fffffd807f00ec00,0,0) at udp_output+0x58d sosend(fffffd806dcd5018,0,ffff80002122ae48,0,0,0) at sosend+0x632 dofilewritev(ffff8000212457a8,3,ffff80002122ae48,0,ffff80002122af40) at dofilewritev+0x19c sys_write(ffff8000212457a8,ffff80002122aee8,ffff80002122af40) at sys_write+0x83 syscall(ffff80002122afb0) at syscall+0x489 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x1ae3e97b750, count: -20 ddb{1}> show registers rdi 0 rsi 0x1 rbp 0xffff80002122a470 rbx 0xffff800020ce9bff rdx 0x3fd rcx 0 rax 0x68 r8 0x101010101010101 r9 0x8080808080808080 r10 0x5f2221f2b3552f78 r11 0x10a105246ba82695 r12 0xffff800020ce9a00 r13 0 r14 0 r15 0x1 rip 0xffffffff81f18858 db_enter+0x18 cs 0x8 rflags 0x246 rsp 0xffff80002122a460 ss 0x10 db_enter+0x18: addq $0x8,%rsp ddb{1}> show proc PROC (syz-executor3787790407) pid=335720 stat=onproc flags process=0 proc=4000000 pri=32, usrpri=52, nice=20 forw=0xffffffffffffffff, list=0xffff800021245ce8,0xffff800021245278 process=0xffff8000ffffa998 user=0xffff800021226000, vmspace=0xfffffd806cbe7180 estcpu=2, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 46312 463659 88613 0 2 0 syz-executor3787790407 99610 176689 91066 0 2 0 syz-executor3787790407 31601 194813 56726 0 2 0 syz-executor3787790407 31601 257662 56726 0 3 0x4000080 fsleep syz-executor3787790407 48377 6882 29390 0 2 0 syz-executor3787790407 66269 278821 95112 0 2 0 syz-executor3787790407 *66269 335720 95112 0 7 0x4000000 syz-executor3787790407 42493 150938 79103 0 2 0 syz-executor3787790407 42493 59356 79103 0 3 0x4000080 fsleep syz-executor3787790407 88613 184236 35025 0 3 0x80 nanoslp syz-executor3787790407 95112 328311 35025 0 3 0x80 nanoslp syz-executor3787790407 79103 34876 35025 0 2 0 syz-executor3787790407 91066 355683 35025 0 3 0x80 nanoslp syz-executor3787790407 29390 269297 35025 0 3 0x80 nanoslp syz-executor3787790407 56726 377131 35025 0 3 0x80 nanoslp syz-executor3787790407 57602 486358 35025 0 3 0x80 nanoslp syz-executor3787790407 25669 263022 35025 0 7 0 syz-executor3787790407 35025 338014 66222 0 3 0x82 nanoslp syz-executor3787790407 66222 45561 5405 0 3 0x10008a sigsusp ksh 5405 414319 51339 0 3 0x9a kqread sshd 62992 145240 1 0 3 0x100083 ttyin getty 51339 498724 1 0 3 0x88 kqread sshd 78792 224076 43815 74 3 0x1100092 bpf pflogd 43815 215486 1 0 3 0x80 netio pflogd 28345 445775 20120 73 3 0x1100090 kqread syslogd 20120 24159 1 0 3 0x100082 netio syslogd 80198 263185 1 0 3 0x100080 kqread resolvd 75783 14205 19145 77 3 0x100092 kqread dhcpleased 68377 213139 19145 77 3 0x100092 kqread dhcpleased 19145 362390 1 0 3 0x80 kqread dhcpleased 61430 429857 0 0 3 0x14200 bored smr 3009 33622 0 0 2 0x14200 zerothread 79405 274699 0 0 3 0x14200 aiodoned aiodoned 13366 495784 0 0 3 0x14200 syncer update 65450 199786 0 0 3 0x14200 cleaner cleaner 49197 380142 0 0 3 0x14200 reaper reaper 23764 161392 0 0 3 0x14200 pgdaemon pagedaemon 45178 140690 0 0 3 0x14200 bored viomb 97312 354580 0 0 3 0x40014200 acpi0 acpi0 72096 24210 0 0 3 0x40014200 idle1 21243 472673 0 0 3 0x14200 bored softnet 43134 312498 0 0 3 0x14200 bored systqmp 94029 499347 0 0 3 0x14200 bored systq 94462 146360 0 0 3 0x40014200 bored softclock 70746 321574 0 0 3 0x40014200 idle0 1 517353 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks CPU 1: exclusive mutex &table->inpt_mtx r = 0 (0xffffffff82a88990) #0 witness_lock+0x44d #1 mtx_enter_try+0x100 #2 mtx_enter+0x4b #3 udp_input+0x7b0 #4 ip_deliver+0x322 #5 ip_ours+0x3ba #6 ip_input_if+0x2a1 #7 ipv4_input+0x48 #8 if_input_local+0x10e #9 ip_output+0xb05 #10 udp_output+0x58d #11 sosend+0x632 #12 dofilewritev+0x19c #13 sys_write+0x83 #14 syscall+0x489 #15 Xsyscall+0x128 Process 66269 (syz-executor3787790407) thread 0xffff8000212457a8 (335720) exclusive rwlock netlock r = 0 (0xffffffff828f7720) #0 witness_lock+0x44d #1 solock+0x86 #2 sosend+0x517 #3 dofilewritev+0x19c #4 sys_write+0x83 #5 syscall+0x489 #6 Xsyscall+0x128 exclusive mutex &table->inpt_mtx r = 0 (0xffffffff82a88990) #0 witness_lock+0x44d #1 mtx_enter_try+0x100 #2 mtx_enter+0x4b #3 udp_input+0x7b0 #4 ip_deliver+0x322 #5 ip_ours+0x3ba #6 ip_input_if+0x2a1 #7 ipv4_input+0x48 #8 if_input_local+0x10e #9 ip_output+0xb05 #10 udp_output+0x58d #11 sosend+0x632 #12 dofilewritev+0x19c #13 sys_write+0x83 #14 syscall+0x489 #15 Xsyscall+0x128 Process 25669 (syz-executor3787790407) thread 0xffff8000ffff62b0 (263022) exclusive rrwlock inode r = 0 (0xfffffd806cc1a5e8) #0 witness_lock+0x44d #1 rw_enter+0x3e1 #2 rrw_enter+0x8b #3 VOP_LOCK+0x87 #4 ufs_ihashins+0x42 #5 ffs_vget+0x141 #6 ffs_inode_alloc+0x1be #7 ufs_mkdir+0xf4 #8 VOP_MKDIR+0xbf #9 domkdirat+0x121 #10 syscall+0x489 #11 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806d41d928) #0 witness_lock+0x44d #1 rw_enter+0x3e1 #2 rrw_enter+0x8b #3 VOP_LOCK+0x87 #4 vn_lock+0x84 #5 vfs_lookup+0xd1 #6 namei+0x36a #7 domkdirat+0x75 #8 syscall+0x489 #9 Xsyscall+0x128 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10149 6454K 6455K 78643K 11239 0 pcb 13 8K 8K 78643K 13 0 rtable 62 2K 2K 78643K 112 0 ifaddr 29 8K 8K 78643K 32 0 counters 40 33K 33K 78643K 40 0 ioctlops 0 0K 4K 78643K 1479 0 mount 1 1K 1K 78643K 1 0 log 0 0K 0K 78643K 5 0 vnodes 1167 73K 73K 78643K 1180 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 1K 78643K 2 0 VM map 2 1K 1K 78643K 2 0 sem 2 0K 0K 78643K 2 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1697 195K 286K 78643K 12548 0 file desc 1 0K 0K 78643K 1 0 proc 67 87K 87K 78643K 282 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 in_multi 11 0K 0K 78643K 11 0 ether_multi 1 0K 0K 78643K 1 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 25 122K 122K 78643K 25 0 exec 0 0K 2K 78643K 430 0 tdb 3 0K 0K 78643K 3 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 165 7K 7K 78643K 2313 0 UVM aobj 3 2K 2K 78643K 3 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 NDP 4 0K 0K 78643K 4 0 temp 24 4694K 4758K 78643K 3313 0 kqueue 11 16K 18K 78643K 24 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 plcache 128 22 0 0 1 0 1 1 0 8 0 rtpcb 120 17 0 14 1 0 1 1 0 8 0 rtentry 112 23 0 1 1 0 1 1 0 8 0 unpcb 136 35 0 20 1 0 1 1 0 8 0 syncache 296 5 0 5 1 0 1 1 0 8 1 tcpcb 736 8 0 5 1 0 1 1 0 8 0 arp 120 2 0 0 1 0 1 1 0 8 0 inpcb 312 46 0 34 1 0 1 1 0 8 0 pfosfp 40 1428 0 1005 5 0 5 5 0 8 0 pfosfpen 112 1428 0 714 21 0 21 21 0 8 0 pfstitem 24 8 0 0 1 0 1 1 0 8 0 pfstkey 112 8 0 0 1 0 1 1 0 8 0 pfstate 320 8 0 0 1 0 1 1 0 8 0 pfrule 1360 21 0 16 2 1 1 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 96 0 0 6 0 6 6 0 8 0 art_table 32 97 0 0 1 0 1 1 0 8 0 art_node 16 22 0 2 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1443 0 42 88 0 88 88 0 8 0 ffsino 272 1443 0 42 94 0 94 94 0 8 0 nchpl 144 1628 0 58 59 0 59 59 0 8 0 uvmvnodes 80 1453 0 0 30 0 30 30 0 8 0 vnodes 224 1453 0 0 86 0 86 86 0 8 0 namei 1024 4469 0 4468 2 0 2 2 0 8 1 percpumem 16 32 0 0 1 0 1 1 0 8 0 scxspl 216 3923 0 3923 2 0 2 2 0 8 2 plimitpl 152 16 0 9 1 0 1 1 0 8 0 sigapl 424 337 0 293 6 0 6 6 0 8 0 futexpl 64 35 0 33 1 0 1 1 0 8 0 knotepl 120 44 0 0 2 0 2 2 0 8 0 kqueuepl 216 20 0 13 1 0 1 1 0 8 0 pipepl 336 86 0 83 1 0 1 1 0 8 0 fdescpl 496 323 0 294 4 0 4 4 0 8 0 filepl 152 1162 0 1098 3 0 3 3 0 8 0 lockfpl 104 6 0 4 1 0 1 1 0 8 0 lockfspl 48 4 0 2 1 0 1 1 0 8 0 sessionpl 144 18 0 9 1 0 1 1 0 8 0 pgrppl 48 18 0 9 1 0 1 1 0 8 0 ucredpl 96 69 0 57 1 0 1 1 0 8 0 zombiepl 144 294 0 293 1 0 1 1 0 8 0 processpl 1064 337 0 293 4 0 4 4 0 8 0 procpl 672 344 0 297 5 0 5 5 0 8 0 sockpl 480 98 0 68 4 0 4 4 0 8 0 mcl8k 8192 2 0 0 1 0 1 1 0 8 0 mcl4k 4096 4 0 0 1 0 1 1 0 8 0 mcl2k 2048 57 0 0 8 0 8 8 0 8 0 mtagpl 96 1 0 0 1 0 1 1 0 8 0 mbufpl 256 104 0 0 7 0 7 7 0 8 0 bufpl 288 2045 0 93 140 0 140 140 0 8 0 anonpl 24 44404 0 40399 28 2 26 26 0 186 0 amapchunkpl 152 4259 0 3949 13 0 13 13 0 158 0 amappl16 200 39 0 33 2 1 1 1 0 8 0 amappl15 192 67 0 64 1 0 1 1 0 8 0 amappl13 176 34 0 33 1 0 1 1 0 8 0 amappl12 168 18 0 18 1 0 1 1 0 8 1 amappl11 160 51 0 37 1 0 1 1 0 8 0 amappl10 152 6 0 4 1 0 1 1 0 8 0 amappl9 144 458 0 455 1 0 1 1 0 8 0 amappl8 136 387 0 371 1 0 1 1 0 8 0 amappl7 128 66 0 63 1 0 1 1 0 8 0 amappl6 120 115 0 102 1 0 1 1 0 8 0 amappl5 112 178 0 166 1 0 1 1 0 8 0 amappl4 104 637 0 615 1 0 1 1 0 8 0 amappl3 96 125 0 114 1 0 1 1 0 8 0 amappl2 88 378 0 334 2 0 2 2 0 8 0 amappl1 80 8876 0 8400 10 0 10 10 0 8 0 amappl 88 2021 0 1881 4 0 4 4 0 92 0 dma4096 4096 1 0 1 1 1 0 1 0 8 0 dma1024 1024 1 0 0 1 0 1 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 72 2 0 0 1 0 1 1 0 8 0 uaddrrnd 24 323 0 294 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 323 0 294 1 0 1 1 0 8 0 vmmpekpl 168 6266 0 6243 2 0 2 2 0 8 0 vmmpepl 168 27217 0 25885 61 0 61 61 0 357 0 vmsppl 368 322 0 294 3 0 3 3 0 8 0 rwobjpl 56 9746 0 7622 31 0 31 31 0 8 0 pdppl 4096 653 0 588 83 14 69 69 0 8 4 pvpl 32 138625 0 132235 53 0 53 53 0 265 0 pmappl 248 322 0 294 2 0 2 2 0 8 0 extentpl 40 58 0 38 1 0 1 1 0 8 0 phpool 112 445 0 17 13 0 13 13 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x1a: addq $0x8,%rsp x86_ipi_db(ffffffff8294dff0) at x86_ipi_db+0x1a x86_ipi_handler() at x86_ipi_handler+0xb7 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x23 __mp_lock(ffffffff82b46e28) at __mp_lock+0x122 __mp_acquire_count(ffffffff82b46e28,1) at __mp_acquire_count+0x48 mi_switch() at mi_switch+0x3d3 sleep_finish(ffff8000211cf1e0,1) at sleep_finish+0x198 tsleep(fffffd806f4b85c0,11,ffffffff826081f3,0) at tsleep+0x12c biowait(fffffd806f4b85c0) at biowait+0x91 bwrite(fffffd806f4b85c0) at bwrite+0x21b ffs_update(fffffd806d41d890,1) at ffs_update+0x27d ufs_mkdir(ffff8000211cf510) at ufs_mkdir+0x433 VOP_MKDIR(fffffd806d422318,ffff8000211cf670,ffff8000211cf6a0,ffff8000211cf5a0) at VOP_MKDIR+0xbf domkdirat(ffff8000ffff62b0,ffffff9c,7f7ffffea360,1ff) at domkdirat+0x121 end trace frame: 0xffff8000211cf810, count: 0 ddb{0}> trace x86_ipi_db(ffffffff8294dff0) at x86_ipi_db+0x1a x86_ipi_handler() at x86_ipi_handler+0xb7 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x23 __mp_lock(ffffffff82b46e28) at __mp_lock+0x122 __mp_acquire_count(ffffffff82b46e28,1) at __mp_acquire_count+0x48 mi_switch() at mi_switch+0x3d3 sleep_finish(ffff8000211cf1e0,1) at sleep_finish+0x198 tsleep(fffffd806f4b85c0,11,ffffffff826081f3,0) at tsleep+0x12c biowait(fffffd806f4b85c0) at biowait+0x91 bwrite(fffffd806f4b85c0) at bwrite+0x21b ffs_update(fffffd806d41d890,1) at ffs_update+0x27d ufs_mkdir(ffff8000211cf510) at ufs_mkdir+0x433 VOP_MKDIR(fffffd806d422318,ffff8000211cf670,ffff8000211cf6a0,ffff8000211cf5a0) at VOP_MKDIR+0xbf domkdirat(ffff8000ffff62b0,ffffff9c,7f7ffffea360,1ff) at domkdirat+0x121 syscall(ffff8000211cf820) at syscall+0x489 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffea3c0, count: -16 ddb{0}> machine ddbcpu 1 Stopped at db_enter+0x18: addq $0x8,%rsp db_enter() at db_enter+0x18 panic(ffffffff825a56b6) at panic+0x177 witness_checkorder(ffffffff82b47030,9,0) at witness_checkorder+0x116d __mp_lock(ffffffff82b46e28) at __mp_lock+0xa1 selwakeup(fffffd806dcd58b0) at selwakeup+0x16 sorwakeup(fffffd806dcd5798) at sorwakeup+0xc9 udp_sbappend(fffffd806f67aaf8,fffffd806e534900,fffffd806e5341b0,0,14,fffffd806e5341c4,17a838f1d7c02518,0) at udp_sbappend+0x3b1 udp_input(ffff80002122aa38,ffff80002122aa44,11,2) at udp_input+0xbcb ip_deliver(ffff80002122aa38,ffff80002122aa44,11,2) at ip_deliver+0x322 ip_ours(ffff80002122aa38,ffff80002122aa44,fffffd806e5341bc,0) at ip_ours+0x3ba ip_input_if(ffff80002122aa38,ffff80002122aa44,4,0,ffff800000689000) at ip_input_if+0x2a1 ipv4_input(ffff800000689000,fffffd806e534100) at ipv4_input+0x48 if_input_local(ffff800000689000,fffffd806e534100,2) at if_input_local+0x10e ip_output(fffffd807f00ec00,0,fffffd806f67a7c8,0,0,fffffd806f67a750,55108209fcf15a8b) at ip_output+0xb05 end trace frame: 0xffff80002122acb0, count: 0 ddb{1}> trace db_enter() at db_enter+0x18 panic(ffffffff825a56b6) at panic+0x177 witness_checkorder(ffffffff82b47030,9,0) at witness_checkorder+0x116d __mp_lock(ffffffff82b46e28) at __mp_lock+0xa1 selwakeup(fffffd806dcd58b0) at selwakeup+0x16 sorwakeup(fffffd806dcd5798) at sorwakeup+0xc9 udp_sbappend(fffffd806f67aaf8,fffffd806e534900,fffffd806e5341b0,0,14,fffffd806e5341c4,17a838f1d7c02518,0) at udp_sbappend+0x3b1 udp_input(ffff80002122aa38,ffff80002122aa44,11,2) at udp_input+0xbcb ip_deliver(ffff80002122aa38,ffff80002122aa44,11,2) at ip_deliver+0x322 ip_ours(ffff80002122aa38,ffff80002122aa44,fffffd806e5341bc,0) at ip_ours+0x3ba ip_input_if(ffff80002122aa38,ffff80002122aa44,4,0,ffff800000689000) at ip_input_if+0x2a1 ipv4_input(ffff800000689000,fffffd806e534100) at ipv4_input+0x48 if_input_local(ffff800000689000,fffffd806e534100,2) at if_input_local+0x10e ip_output(fffffd807f00ec00,0,fffffd806f67a7c8,0,0,fffffd806f67a750,55108209fcf15a8b) at ip_output+0xb05 udp_output(fffffd806f67a750,fffffd807f00ec00,0,0) at udp_output+0x58d sosend(fffffd806dcd5018,0,ffff80002122ae48,0,0,0) at sosend+0x632 dofilewritev(ffff8000212457a8,3,ffff80002122ae48,0,ffff80002122af40) at dofilewritev+0x19c sys_write(ffff8000212457a8,ffff80002122aee8,ffff80002122af40) at sys_write+0x83 syscall(ffff80002122afb0) at syscall+0x489 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x1ae3e97b750, count: -20 ddb{1}>