panic: mtx 0xffffffff838f9ef0: locking against myself Starting stack trace... panic(ffffffff833e3b44) at panic+0x1d0 sys/kern/subr_prf.c:229 mtx_enter_try(ffffffff838f9ef0) at mtx_enter_try+0x1bf sys/kern/kern_lock.c:271 mtx_enter(ffffffff838f9ef0) at mtx_enter+0x60 sys/kern/kern_lock.c:239 uvm_pageclean(fffffd8004845578) at uvm_pageclean+0x290 uvm_pagedequeue sys/uvm/uvm_page.c:-1 [inline] uvm_pageclean(fffffd8004845578) at uvm_pageclean+0x290 sys/uvm/uvm_page.c:980 uvm_pagefree(fffffd8004845578) at uvm_pagefree+0x26 sys/uvm/uvm_page.c:1020 uvn_get(fffffd806389c5b0,0,ffff80002efd81b8,ffff80002efd819c,0,2,bde359b232ad6f7f,2) at uvn_get+0x68b sys/uvm/uvm_vnode.c:1118 uvm_fault_lower_io(ffff80002efd83d0,ffff80002efd8408,ffff80002efd8250,ffff80002efd8238) at uvm_fault_lower_io+0x2d1 sys/uvm/uvm_fault.c:1652 uvm_fault_lower(ffff80002efd83d0,ffff80002efd8408,ffff80002efd8350) at uvm_fault_lower+0x2bb sys/uvm/uvm_fault.c:1419 uvm_fault(fffffd806bee6798,200000000000,0,2) at uvm_fault+0x278 sys/uvm/uvm_fault.c:-1 upageflttrap(ffff80002efd8560,200000000040) at upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:188 usertrap(ffff80002efd8560) at usertrap+0x2d8 sys/arch/amd64/amd64/trap.c:436 recall_trap() at recall_trap+0x8 end of kernel end trace frame: 0x779cbd297b60, count: 245 End of stack trace. WARNING: SPL NOT LOWERED ON SYSCALL 91 1109932968 EXIT 0 a Stopped at savectx+0xae: movl $0,%gs:0x680 TID PID UID PRFLAGS PFLAGS CPU COMMAND 262650 27433 0 0 0 0 syz-executor *230208 75277 0 0 0 1 syz-executor savectx() at savectx+0xae end of kernel end trace frame: 0x783042283b90, 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{1}> ddb{1}> set $lines = 0 ddb{1}> set $maxwidth = 0 ddb{1}> show panic *cpu0: mtx 0xffffffff838f9ef0: locking against myself ddb{1}> trace savectx() at savectx+0xae end of kernel end trace frame: 0x783042283b90, count: -1 ddb{1}> show registers rdi 0 rsi 0 rbp 0xffff80002a310f30 rbx 0 rdx 0 rcx 0xffff80002a2c6ab0 rax 0x3b r8 0xffff80002a310e60 r9 0x1 r10 0x6c76dac45e6cdb5 r11 0x9cd2da9becaa49b6 r12 0 r13 0 r14 0xffff80002a2c6ab0 r15 0 rip 0xffffffff817843ee savectx+0xae cs 0x8 rflags 0x46 rsp 0xffff80002a310eb0 ss 0x10 savectx+0xae: movl $0,%gs:0x680 ddb{1}> show proc PROC (syz-executor) tid=230208 pid=75277 tcnt=3 stat=onproc flags process=0 proc=0 runpri=32, usrpri=84, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80002a2c6808,0xffff80002a2c52d8 process=0xffff8000fffe09b0 user=0xffff80002a30b000, vmspace=0xfffffd806bee61f8 estcpu=34, cpticks=0, pctcpu=0.3, user=2, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 27433 262650 36059 0 7 0 syz-executor 27433 252515 36059 0 3 0x4000000 biowait syz-executor 27433 286924 36059 0 3 0x4000000 uobjlk syz-executor 23407 91937 53607 60929 2 0xc90 syz-executor 23407 107971 53607 60929 3 0x4000090 netcon syz-executor 23407 244443 53607 60929 3 0x4000090 fsleep syz-executor 95165 76370 73713 0 2 0xc80 syz-executor 95165 178880 73713 0 3 0x4000080 sbwait syz-executor *75277 230208 52964 0 7 0 syz-executor 75277 314859 52964 0 3 0x4000080 lockf syz-executor 75277 79177 52964 0 3 0x4000080 fsleep syz-executor 6160 276920 60054 0 2 0xc80 syz-executor 6160 281755 60054 0 3 0x4000080 netcon syz-executor 6160 363906 60054 0 3 0x4000080 fsleep syz-executor 82950 435678 0 0 3 0x14280 nfsidl nfsio 92191 12452 0 0 3 0x14280 nfsidl nfsio 30157 324112 0 0 3 0x14280 nfsidl nfsio 15699 57140 0 0 3 0x14280 nfsidl nfsio 7762 108186 0 0 3 0x14280 nfsidl nfsio 35147 180213 0 0 3 0x14280 nfsidl nfsio 73090 90970 0 0 3 0x14280 nfsidl nfsio 27438 333622 0 0 3 0x14280 nfsidl nfsio 31593 515856 0 0 3 0x14280 nfsidl nfsio 92309 293768 0 0 3 0x14280 nfsidl nfsio 24582 162217 0 0 3 0x14280 nfsidl nfsio 15842 262426 0 0 3 0x14280 nfsidl nfsio 38360 94208 0 0 3 0x14280 nfsidl nfsio 65906 414078 0 0 3 0x14280 nfsidl nfsio 39602 244542 0 0 3 0x14280 nfsidl nfsio 70811 29664 0 0 3 0x14280 nfsidl nfsio 57219 430924 0 0 3 0x14280 nfsidl nfsio 51709 152310 0 0 3 0x14280 nfsidl nfsio 82451 7071 0 0 3 0x14280 nfsidl nfsio 78117 430289 0 0 3 0x14280 nfsidl nfsio 60054 139323 95271 0 2 0xc82 syz-executor 3283 311871 95271 0 2 0xc82 syz-executor 74913 139095 1 0 3 0x100083 ttyopn getty 68415 442001 95271 0 2 0x2 syz-executor 18907 141399 0 0 3 0x14200 acct acct 52964 371225 95271 0 2 0x2 syz-executor 36059 191203 95271 0 2 0xc82 syz-executor 73713 195841 95271 0 2 0xc82 syz-executor 901 165508 0 0 3 0x14200 bored sosplice 31599 472284 51839 0 3 0x100082 sbwait arp 51839 288256 1 0 3 0x10008a sigsusp sh 53607 408974 95271 0 2 0xc82 syz-executor 89265 305958 95271 0 2 0x2 syz-executor 95271 134748 68948 0 3 0x82 kqread syz-executor 68948 50899 6262 0 3 0x10008a sigsusp ksh 6262 417797 30082 0 3 0x98 kqread sshd-session 30082 357127 11244 0 3 0x92 kqread sshd-session 11244 304433 1 0 3 0x88 kqread sshd 32387 217409 88364 74 3 0x1100092 bpf pflogd 88364 227658 1 0 3 0x80 sbwait pflogd 38092 235043 65611 73 3 0x1100090 kqread syslogd 65611 49421 1 0 3 0x100082 sbwait syslogd 98334 262310 1 0 3 0x100080 kqread resolvd 63529 449306 98672 77 3 0x100092 kqread dhcpleased 14680 416859 98672 77 3 0x100092 kqread dhcpleased 98672 332811 1 0 3 0x80 kqread dhcpleased 57560 35560 0 0 2 0x40014200 smr 66276 177847 0 0 3 0x14200 pgzero zerothread 71871 375838 0 0 3 0x14200 aiodoned aiodoned 20415 405812 0 0 3 0x14200 syncer update 88925 219558 0 0 3 0x14200 cleaner cleaner 78253 350610 0 0 3 0x14200 reaper reaper 24009 203999 0 0 3 0x14200 pgdaemon pagedaemon 13966 205201 0 0 3 0x14200 bored viomb 24681 155883 0 0 3 0x40014200 acpi0 acpi0 55067 383353 0 0 3 0x40014200 idle1 51492 221927 0 0 3 0x14200 bored softnet3 18936 358716 0 0 3 0x14200 bored softnet2 86758 85285 0 0 3 0x14200 bored softnet1 22287 238941 0 0 2 0x14200 softnet0 66254 423510 0 0 3 0x14200 bored systqmp 88954 266461 0 0 3 0x14200 bored systq 51378 109292 0 0 3 0x14200 tmoslp softclockmp 8458 446459 0 0 2 0x40014200 softclock 54936 367136 0 0 3 0x40014200 idle0 1 91215 0 0 3 0x82 wait init 0 0 -1 0 3 0x10010200 scheduler swapper ddb{1}> show all locks CPU 0: exclusive mutex &uvm.pageqlock r = 0 (0xffffffff838f9f00) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1160 #1 mtx_enter_try+0x178 sys/kern/kern_lock.c:-1 #2 mtx_enter+0x60 sys/kern/kern_lock.c:239 #3 uvn_get+0x679 sys/uvm/uvm_vnode.c:1117 #4 uvm_fault_lower_io+0x2d1 sys/uvm/uvm_fault.c:1652 #5 uvm_fault_lower+0x2bb sys/uvm/uvm_fault.c:1419 #6 uvm_fault+0x278 sys/uvm/uvm_fault.c:-1 #7 upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:188 #8 usertrap+0x2d8 sys/arch/amd64/amd64/trap.c:436 #9 recall_trap+0x8 CPU 1: exclusive mutex &map->flags_lock r = 0 (0xfffffd806bee6908) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1160 #1 mtx_enter_try+0x178 sys/kern/kern_lock.c:-1 #2 mtx_enter+0x60 sys/kern/kern_lock.c:239 #3 vm_map_lock_ln+0x13f sys/uvm/uvm_map.c:5251 #4 uvm_map_clean+0x11b sys/uvm/uvm_map.c:4448 #5 syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] #5 syscall+0xb08 sys/arch/amd64/amd64/trap.c:577 #6 Xsyscall+0x128 Process 27433 (syz-executor) thread 0xffff80003c445800 (262650) Process 27433 (syz-executor) thread 0xffff80003c445008 (252515) Process 27433 (syz-executor) thread 0xffff80003c445aa8 (286924) ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10229 11142K 15334K 166960K 15124 0 pcb 17 16K 29K 166960K 473 0 rtable 232 10K 11K 166960K 1113 0 pf 35 17K 82K 166960K 196 0 ifaddr 39 7K 8K 166960K 151 0 ifgroup 55 2K 2K 166960K 255 0 sysctl 4 1K 2K 166960K 6 0 counters 64 36K 37K 166960K 252 0 ioctlops 0 0K 4K 166960K 1839 0 iov 0 0K 20K 166960K 235 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1460 92K 92K 166960K 3284 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 3 5K 9K 166960K 39 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 104 0 dirhash 15 2K 3K 166960K 69 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 20 73K 110K 166960K 2208 0 sigio 0 0K 0K 166960K 26 0 proc 72 91K 128K 166960K 933 0 subproc 81 5K 5K 166960K 136 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 342 0 in_multi 80 6K 7K 166960K 220 0 ether_multi 1 0K 0K 166960K 10 0 mrt 1 0K 0K 166960K 8 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 205 917K 917K 166960K 205 0 exec 0 0K 1K 166960K 849 0 fusefs mount 1 32K 32K 166960K 1 0 pfkey data 0 0K 0K 166960K 5 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 268 163K 179K 166960K 21132 0 UVM aobj 75 5K 5K 166960K 79 0 pinsyscall 46 92K 106K 166960K 3470 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 1K 166960K 157 0 NDP 12 0K 1K 166960K 108 0 temp 145 8693K 8821K 166960K 110651 0 kqueue 13 20K 30K 166960K 372 0 SYN cache 2 16K 16K 166960K 2 0 ddb{1}> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle plcache 128 26 0 0 1 0 1 1 0 8 0 rtpcb 120 316 0 312 5 2 3 3 0 8 2 rtentry 176 341 0 242 6 0 6 6 0 8 0 unpcb 144 1646 0 1627 16 12 4 4 0 8 3 syncache 336 4 0 4 1 1 0 1 0 8 0 tcpcb 808 798 0 789 22 20 2 8 0 8 1 arp 128 47 0 24 1 0 1 1 0 8 0 inpcb 384 2370 0 2351 35 33 2 14 0 8 0 nd6 144 50 0 29 1 0 1 1 0 8 0 pkpcb 40 21 0 21 7 6 1 1 0 8 1 kcovpl 48 15 0 6 1 0 1 1 0 8 0 mppekey 1024 1 0 1 1 0 1 1 0 8 1 ppxss 1192 67 0 67 6 5 1 1 0 8 1 pppxif 1504 10 0 10 5 4 1 1 0 8 1 pffrag 232 8 0 2 1 0 1 1 0 482 0 pffrnode 88 8 0 2 1 0 1 1 0 8 0 pffrent 40 15 0 9 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 24 111 0 61 1 0 1 1 0 8 0 pfstkey 128 111 0 61 2 0 2 2 0 8 0 pfstate 384 110 0 61 6 0 6 6 0 8 0 pfrule 1344 21 0 16 2 1 1 2 0 8 0 rttmr 136 1 0 1 1 1 0 1 0 8 0 art_heap8 4096 3 0 0 3 0 3 3 0 8 0 art_heap4 256 931 0 540 35 6 29 30 0 8 0 art_table 32 934 0 540 4 0 4 4 0 8 0 art_node 16 239 0 152 1 0 1 1 0 8 0 sysvmsgpl 40 9 0 4 1 0 1 1 0 8 0 semupl 112 2 0 2 2 2 0 1 0 8 0 semapl 112 99 0 89 1 0 1 1 0 8 0 shmpl 112 76 0 4 3 0 3 3 0 8 0 dirhash 1024 56 0 37 3 0 3 3 0 8 0 dino2pl 256 5380 0 3864 97 1 96 96 0 8 0 ffsino 288 5380 0 3864 109 0 109 109 0 8 0 nchpl 144 8595 0 7980 64 39 25 64 0 8 0 rtmask 32 7 0 7 5 4 1 1 0 8 1 uvmvnodes 80 5903 0 0 121 0 121 121 0 8 0 vnodes 216 5903 0 0 328 0 328 328 0 8 0 namei 1024 28799 0 28799 7 6 1 2 0 8 1 percpumem 16 141 0 94 1 0 1 1 0 8 0 kstatmem 264 156 0 132 4 1 3 3 0 8 0 scsiplug 72 5 0 5 4 4 0 1 0 8 0 scxspl 216 27069 0 27066 11 10 1 8 1 8 0 plimitpl 152 586 0 566 1 0 1 1 0 8 0 sigapl 424 2542 0 2468 13 3 10 10 0 8 0 futexpl 64 31329 0 31326 2 1 1 1 0 8 0 knotepl 120 600 0 0 17 0 17 17 0 8 0 kqueuepl 224 818 0 808 13 12 1 5 0 8 0 pipepl 336 462 0 432 13 10 3 8 0 8 0 fdescpl 520 2471 0 2437 3 0 3 3 0 8 0 filepl 160 16175 0 15915 28 13 15 18 0 8 1 lockfpl 104 611 0 604 1 0 1 1 0 8 0 lockfspl 48 251 0 247 1 0 1 1 0 8 0 sessionpl 144 31 0 22 1 0 1 1 0 8 0 pgrppl 48 78 0 60 1 0 1 1 0 8 0 ucredpl 104 2298 0 2284 1 0 1 1 0 8 0 zombiepl 144 2692 0 2689 1 0 1 1 0 8 0 processpl 1216 2542 0 2468 7 0 7 7 0 8 0 procpl 680 5957 0 5874 10 2 8 8 0 8 0 srpgc 96 14 0 14 3 3 0 1 0 8 0 sosppl 168 10 0 10 4 4 0 1 0 8 0 sockpl 728 4598 0 4557 46 36 10 15 0 8 6 mcl64k 65536 8 8 0 1 0 1 1 0 8 0 mcl16k 16384 8 2 0 1 0 1 1 0 8 0 mcl12k 12288 2 0 0 1 0 1 1 0 8 0 mcl9k 9216 2 0 0 1 0 1 1 0 8 0 mcl8k 8192 4 0 0 1 0 1 1 0 8 0 mcl4k 4096 135 0 0 17 1 16 17 0 8 0 mcl2k2 2112 2 0 0 1 0 1 1 0 8 0 mcl2k 2048 48 0 0 4 0 4 4 0 8 0 mtagpl 96 164 0 0 4 0 4 4 0 8 0 mbufpl 256 1259 544 603 75 0 75 75 0 8 1 bufpl 280 7522 0 1380 439 0 439 439 0 8 0 anonpl 32 8003 0 0 65 0 65 65 0 246 0 amapchunkpl 152 72686 0 71987 57 29 28 32 0 158 0 amappl16 200 5237 0 5193 34 29 5 15 0 8 0 amappl15 192 33 0 32 1 0 1 1 0 8 0 amappl14 184 148 0 135 1 0 1 1 0 8 0 amappl13 176 6 0 6 2 2 0 1 0 8 0 amappl12 168 3225 0 3190 4 2 2 3 0 8 0 amappl11 160 54 0 40 1 0 1 1 0 8 0 amappl10 152 4 0 4 1 1 0 1 0 8 0 amappl9 144 245 0 244 1 0 1 1 0 8 0 amappl8 136 27 0 24 1 0 1 1 0 8 0 amappl7 128 129 0 115 1 0 1 1 0 8 0 amappl6 120 255 0 251 1 0 1 1 0 8 0 amappl5 112 154 0 143 1 0 1 1 0 8 0 amappl4 104 350 0 329 1 0 1 1 0 8 0 amappl3 96 15008 0 14875 5 1 4 4 0 8 0 amappl2 88 743 0 674 2 0 2 2 0 8 0 amappl1 80 17199 0 16571 15 0 15 15 0 8 0 amappl 88 19945 0 19756 6 1 5 5 0 92 0 dma4096 4096 2 0 2 2 2 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 19 0 18 1 0 1 1 0 8 0 aobjpl 72 78 0 4 2 0 2 2 0 8 0 uaddrrnd 24 2471 0 2437 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 2471 0 2437 1 0 1 1 0 8 0 vmmpekpl 168 20876 0 20821 3 0 3 3 0 8 0 vmmpepl 168 155855 0 153676 121 25 96 104 0 357 0 vmsppl 480 2470 0 2437 5 0 5 5 0 8 0 rwobjpl 72 44088 0 37083 130 2 128 128 0 8 0 pdppl 4096 4950 0 4874 121 45 76 86 0 8 0 pvpl 32 17877 0 0 145 1 144 144 0 265 0 pmappl 256 2470 0 2437 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 528 0 95 13 0 13 13 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffffffff837f2ff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:394 x86_ipi_handler() at x86_ipi_handler+0xd9 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27 __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x2c kd_curproc sys/dev/kcov.c:584 [inline] __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x2c sys/dev/kcov.c:153 __mp_lock(ffffffff838f3e30) at __mp_lock+0x1a3 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff838f3e30) at __mp_lock+0x1a3 sys/kern/kern_lock.c:144 intr_handler(ffff80002efd73f0,ffff800000069c00) at intr_handler+0xe1 sys/arch/amd64/amd64/intr.c:559 Xintr_ioapic_edge16_untramp() at Xintr_ioapic_edge16_untramp+0x18f Xspllower() at Xspllower+0x1d pool_cache_get(ffffffff83955a38) at pool_cache_get+0x34b sys/kern/subr_pool.c:1921 pool_get(ffffffff83955a38,2) at pool_get+0xbd sys/kern/subr_pool.c:-1 m_clget(0,2,1000) at m_clget+0x264 m_gethdr sys/kern/uipc_mbuf.c:-1 [inline] m_clget(0,2,1000) at m_clget+0x264 sys/kern/uipc_mbuf.c:387 vio_populate_rx_mbufs(ffff800000039000,ffff80000002c400) at vio_populate_rx_mbufs+0x187 vio_add_rx_mbuf sys/dev/pv/if_vio.c:-1 [inline] vio_populate_rx_mbufs(ffff800000039000,ffff80000002c400) at vio_populate_rx_mbufs+0x187 sys/dev/pv/if_vio.c:1412 vio_rx_intr(ffff80000019f800) at vio_rx_intr+0xc9 sys/dev/pv/if_vio.c:1572 vio_queue_intr(ffff80000002c400) at vio_queue_intr+0x59 sys/dev/pv/if_vio.c:909 end trace frame: 0xffff80002efd7830, count: 0 ddb{0}> trace x86_ipi_db(ffffffff837f2ff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:394 x86_ipi_handler() at x86_ipi_handler+0xd9 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27 __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x2c kd_curproc sys/dev/kcov.c:584 [inline] __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x2c sys/dev/kcov.c:153 __mp_lock(ffffffff838f3e30) at __mp_lock+0x1a3 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff838f3e30) at __mp_lock+0x1a3 sys/kern/kern_lock.c:144 intr_handler(ffff80002efd73f0,ffff800000069c00) at intr_handler+0xe1 sys/arch/amd64/amd64/intr.c:559 Xintr_ioapic_edge16_untramp() at Xintr_ioapic_edge16_untramp+0x18f Xspllower() at Xspllower+0x1d pool_cache_get(ffffffff83955a38) at pool_cache_get+0x34b sys/kern/subr_pool.c:1921 pool_get(ffffffff83955a38,2) at pool_get+0xbd sys/kern/subr_pool.c:-1 m_clget(0,2,1000) at m_clget+0x264 m_gethdr sys/kern/uipc_mbuf.c:-1 [inline] m_clget(0,2,1000) at m_clget+0x264 sys/kern/uipc_mbuf.c:387 vio_populate_rx_mbufs(ffff800000039000,ffff80000002c400) at vio_populate_rx_mbufs+0x187 vio_add_rx_mbuf sys/dev/pv/if_vio.c:-1 [inline] vio_populate_rx_mbufs(ffff800000039000,ffff80000002c400) at vio_populate_rx_mbufs+0x187 sys/dev/pv/if_vio.c:1412 vio_rx_intr(ffff80000019f800) at vio_rx_intr+0xc9 sys/dev/pv/if_vio.c:1572 vio_queue_intr(ffff80000002c400) at vio_queue_intr+0x59 sys/dev/pv/if_vio.c:909 intr_handler(ffff80002efd7840,ffff800000079d80) at intr_handler+0x11d sys/arch/amd64/amd64/intr.c:563 Xintr_ioapic_edge26_untramp() at Xintr_ioapic_edge26_untramp+0x18f Xspllower() at Xspllower+0x1d tsleep(fffffd805ec0c248,11,ffffffff833f4b83,0) at tsleep+0x1b8 sys/kern/kern_synch.c:142 biowait(fffffd805ec0c248) at biowait+0xc1 sys/kern/vfs_bio.c:1246 bwrite(fffffd805ec0c248) at bwrite+0x2e5 sys/kern/vfs_bio.c:758 ffs_update(fffffd806d4345c8,1) at ffs_update+0x34f sys/ufs/ffs/ffs_inode.c:111 ffs_truncate(fffffd806d4345c8,0,0,ffffffffffffffff) at ffs_truncate+0xcb6 sys/ufs/ffs/ffs_inode.c:-1 ufs_inactive(ffff80002efd7d58) at ufs_inactive+0x206 sys/ufs/ufs/ufs_inode.c:84 VOP_INACTIVE(fffffd800bbb8708,ffff80003c445800) at VOP_INACTIVE+0x107 sys/kern/vfs_vops.c:498 vput(fffffd800bbb8708) at vput+0xe5 sys/kern/vfs_subr.c:796 vn_close(fffffd800bbb8708,2,ffffffffffffffff,ffff80003c445800) at vn_close+0xb7 sys/kern/vfs_vnops.c:294 acct_shutdown() at acct_shutdown+0x8a sys/kern/kern_acct.c:361 vfs_shutdown(ffff80003c445800) at vfs_shutdown+0x23 sys/kern/vfs_subr.c:1796 boot(100) at boot+0x15c sys/arch/amd64/amd64/machdep.c:907 reboot(100) at reboot+0xb1 panic(ffffffff833e3b44) at panic+0x1f9 sys/kern/subr_prf.c:231 mtx_enter_try(ffffffff838f9ef0) at mtx_enter_try+0x1bf sys/kern/kern_lock.c:271 mtx_enter(ffffffff838f9ef0) at mtx_enter+0x60 sys/kern/kern_lock.c:239 uvm_pageclean(fffffd8004845578) at uvm_pageclean+0x290 uvm_pagedequeue sys/uvm/uvm_page.c:-1 [inline] uvm_pageclean(fffffd8004845578) at uvm_pageclean+0x290 sys/uvm/uvm_page.c:980 uvm_pagefree(fffffd8004845578) at uvm_pagefree+0x26 sys/uvm/uvm_page.c:1020 uvn_get(fffffd806389c5b0,0,ffff80002efd81b8,ffff80002efd819c,0,2,bde359b232ad6f7f,2) at uvn_get+0x68b sys/uvm/uvm_vnode.c:1118 uvm_fault_lower_io(ffff80002efd83d0,ffff80002efd8408,ffff80002efd8250,ffff80002efd8238) at uvm_fault_lower_io+0x2d1 sys/uvm/uvm_fault.c:1652 uvm_fault_lower(ffff80002efd83d0,ffff80002efd8408,ffff80002efd8350) at uvm_fault_lower+0x2bb sys/uvm/uvm_fault.c:1419 uvm_fault(fffffd806bee6798,200000000000,0,2) at uvm_fault+0x278 sys/uvm/uvm_fault.c:-1 upageflttrap(ffff80002efd8560,200000000040) at upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:188 usertrap(ffff80002efd8560) at usertrap+0x2d8 sys/arch/amd64/amd64/trap.c:436 recall_trap() at recall_trap+0x8 end of kernel end trace frame: 0x779cbd297b60, count: -42 ddb{0}> machine ddbcpu 1 Stopped at savectx+0xae: movl $0,%gs:0x680 savectx() at savectx+0xae end of kernel end trace frame: 0x783042283b90, count: 14 ddb{1}> trace savectx() at savectx+0xae end of kernel end trace frame: 0x783042283b90, count: -1