panic: kernel diagnostic assertion "bp->b_data != NULL" failed: file "/syzkaller/managers/main/kernel/sys/kern/vfs_biomem.c", line 235 Stopped at db_enter+0x1c: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND *114816 31548 0 0x8000002 0x1 0 syz-executor.7 db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff8292d44c) at panic+0x165 sys/kern/subr_prf.c:198 __assert(ffffffff828e346f,ffffffff828f0e96,eb,ffffffff82870b09) at __assert+0x29 sys/kern/subr_prf.c:157 buf_unmap(fffffd8079396258) at buf_unmap+0x1a8 sys/kern/vfs_biomem.c:235 buf_map(fffffd806b7858c0) at buf_map+0x1c6 sys/kern/vfs_biomem.c:117 buf_get(fffffd805bc42a40,3e,4000) at buf_get+0x42f sys/kern/vfs_bio.c:1175 getblk(fffffd805bc42a40,3e,4000,0,ffffffffffffffff) at getblk+0xfd sys/kern/vfs_bio.c:1044 ffs2_balloc(fffffd807cd6f2e0,f8000,11,fffffd807f7d76e8,1,ffff80002a69ccb8) at ffs2_balloc+0x11d9 sys/ufs/ffs/ffs_balloc.c:684 ffs_write(ffff80002a69cd40) at ffs_write+0x3c7 sys/ufs/ffs/ffs_vnops.c:345 VOP_WRITE(fffffd805bc42a40,ffff80002a69cdf0,3,fffffd807f7d76e8) at VOP_WRITE+0xc3 sys/kern/vfs_vops.c:245 ktrwriteraw(ffff80002a6ac7f0,fffffd805bc42a40,fffffd807f7d76e8,ffff80002a69ceb8,ffff80002a69ce90) at ktrwriteraw+0x149 sys/kern/kern_ktrace.c:682 ktrstruct(ffff80002a6ac7f0,ffffffff82859f91,ffff80002a69cf78,10) at ktrstruct+0x163 ktrwrite2 sys/kern/kern_ktrace.c:645 [inline] ktrstruct(ffff80002a6ac7f0,ffffffff82859f91,ffff80002a69cf78,10) at ktrstruct+0x163 sys/kern/kern_ktrace.c:308 sys_setrlimit(ffff80002a6ac7f0,ffff80002a69d0b0,ffff80002a69d000) at sys_setrlimit+0xba sys/kern/kern_resource.c:239 syscall(ffff80002a69d0b0) at syscall+0x72a sys/arch/amd64/amd64/trap.c:577 end trace frame: 0xffff80002a69d130, 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> ddb> set $lines = 0 ddb> set $maxwidth = 0 ddb> show panic *cpu0: kernel diagnostic assertion "bp->b_data != NULL" failed: file "/syzkaller/managers/main/kernel/sys/kern/vfs_biomem.c", line 235 ddb> trace db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff8292d44c) at panic+0x165 sys/kern/subr_prf.c:198 __assert(ffffffff828e346f,ffffffff828f0e96,eb,ffffffff82870b09) at __assert+0x29 sys/kern/subr_prf.c:157 buf_unmap(fffffd8079396258) at buf_unmap+0x1a8 sys/kern/vfs_biomem.c:235 buf_map(fffffd806b7858c0) at buf_map+0x1c6 sys/kern/vfs_biomem.c:117 buf_get(fffffd805bc42a40,3e,4000) at buf_get+0x42f sys/kern/vfs_bio.c:1175 getblk(fffffd805bc42a40,3e,4000,0,ffffffffffffffff) at getblk+0xfd sys/kern/vfs_bio.c:1044 ffs2_balloc(fffffd807cd6f2e0,f8000,11,fffffd807f7d76e8,1,ffff80002a69ccb8) at ffs2_balloc+0x11d9 sys/ufs/ffs/ffs_balloc.c:684 ffs_write(ffff80002a69cd40) at ffs_write+0x3c7 sys/ufs/ffs/ffs_vnops.c:345 VOP_WRITE(fffffd805bc42a40,ffff80002a69cdf0,3,fffffd807f7d76e8) at VOP_WRITE+0xc3 sys/kern/vfs_vops.c:245 ktrwriteraw(ffff80002a6ac7f0,fffffd805bc42a40,fffffd807f7d76e8,ffff80002a69ceb8,ffff80002a69ce90) at ktrwriteraw+0x149 sys/kern/kern_ktrace.c:682 ktrstruct(ffff80002a6ac7f0,ffffffff82859f91,ffff80002a69cf78,10) at ktrstruct+0x163 ktrwrite2 sys/kern/kern_ktrace.c:645 [inline] ktrstruct(ffff80002a6ac7f0,ffffffff82859f91,ffff80002a69cf78,10) at ktrstruct+0x163 sys/kern/kern_ktrace.c:308 sys_setrlimit(ffff80002a6ac7f0,ffff80002a69d0b0,ffff80002a69d000) at sys_setrlimit+0xba sys/kern/kern_resource.c:239 syscall(ffff80002a69d0b0) at syscall+0x72a sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7e78ea6bd720, count: -15 ddb> show registers rdi 0 rsi 0x1 rbp 0xffff80002a69c640 rbx 0xfffffd806b785801 rdx 0 rcx 0 rax 0xffff80002a6ac7f0 r8 0x101010101010101 r9 0x8080808080808080 r10 0x21a3159ad557372 r11 0xa97d93a7688f87d8 r12 0 r13 0 r14 0 r15 0x1 rip 0xffffffff82782c8c db_enter+0x1c cs 0x8 rflags 0x246 rsp 0xffff80002a69c630 ss 0x10 db_enter+0x1c: addq $0x8,%rsp ddb> show proc PROC (syz-executor.7) tid=114816 pid=31548 tcnt=1 stat=onproc flags process=8000002 proc=1 runpri=17, usrpri=52, slppri=17, nice=20 wchan=0x0, wmesg=, ps_single=0x0 forw=0xffffffffffffffff, list=0xffff80002a6adc70,0xffff80002a6ac570 process=0xffff8000343f2e28 user=0xffff80002a698000, vmspace=0xfffffd806b354ad8 estcpu=2, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 53641 132074 43363 0 2 0x8000000 syz-executor.0 53641 5054 43363 0 2 0xc000000 syz-executor.0 24927 189480 13377 0 2 0x8000000 syz-executor.3 *31548 114816 58236 0 7 0x8000003 syz-executor.7 31418 402304 38146 0 2 0x8000000 syz-executor.4 31418 336094 38146 0 2 0xc000000 syz-executor.4 31418 468599 38146 0 3 0xc000080 fsleep syz-executor.4 55757 92006 3827 0 2 0x8000000 syz-executor.1 55757 333191 3827 0 3 0xc000080 fsleep syz-executor.1 13377 345710 58236 0 3 0x8000082 nanoslp syz-executor.3 67539 458332 58236 0 2 0x8000002 syz-executor.5 38146 130984 58236 0 3 0x8000082 nanoslp syz-executor.4 22523 61876 0 0 3 0x14280 nfsidl nfsio 95335 91064 0 0 3 0x14280 nfsidl nfsio 57636 523674 0 0 3 0x14280 nfsidl nfsio 14312 368980 0 0 3 0x14280 nfsidl nfsio 76266 448675 0 0 3 0x14280 nfsidl nfsio 16190 434091 0 0 3 0x14280 nfsidl nfsio 73551 486547 0 0 3 0x14280 nfsidl nfsio 64412 376824 0 0 3 0x14280 nfsidl nfsio 84372 73465 0 0 3 0x14280 nfsidl nfsio 19731 96502 0 0 3 0x14280 nfsidl nfsio 83358 102065 0 0 3 0x14280 nfsidl nfsio 21262 262514 0 0 3 0x14280 nfsidl nfsio 80267 363490 0 0 3 0x14280 nfsidl nfsio 48887 191645 0 0 3 0x14280 nfsidl nfsio 13904 30566 0 0 3 0x14280 nfsidl nfsio 64108 404568 0 0 3 0x14280 nfsidl nfsio 28022 427489 0 0 3 0x14280 nfsidl nfsio 43593 68813 0 0 3 0x14280 nfsidl nfsio 88678 315820 0 0 3 0x14280 nfsidl nfsio 65117 25221 0 0 3 0x14280 nfsidl nfsio 3827 34543 58236 0 3 0x8000082 nanoslp syz-executor.1 43363 195483 58236 0 3 0x8000082 nanoslp syz-executor.0 9695 125514 0 0 3 0x14200 bored sosplice 31955 204144 58236 0 3 0x8000082 nanoslp syz-executor.6 61016 308904 13893 0 3 0x18100082 netio ndp 13893 161278 1 0 3 0x810008a sigsusp sh 35236 51726 58236 0 2 0x8000002 syz-executor.2 58236 318565 35315 0 3 0x1a000082 thrsleep syz-fuzzer 58236 166999 35315 0 3 0x1e000082 nanoslp syz-fuzzer 58236 163056 35315 0 3 0x1e000082 wait syz-fuzzer 58236 468273 35315 0 3 0x1e000082 wait syz-fuzzer 58236 420245 35315 0 3 0x1e000082 thrsleep syz-fuzzer 58236 454320 35315 0 3 0x1e000082 thrsleep syz-fuzzer 58236 255035 35315 0 3 0x1e000082 wait syz-fuzzer 58236 48320 35315 0 3 0x1e000082 thrsleep syz-fuzzer 58236 356043 35315 0 3 0x1e000082 wait syz-fuzzer 58236 477228 35315 0 3 0x1e000082 wait syz-fuzzer 58236 7227 35315 0 3 0x1e000082 thrsleep syz-fuzzer 58236 235612 35315 0 3 0x1e000082 wait syz-fuzzer 58236 240837 35315 0 3 0x1e000082 wait syz-fuzzer 58236 373988 35315 0 3 0x1e000082 thrsleep syz-fuzzer 58236 222078 35315 0 3 0x1e000082 wait syz-fuzzer 35315 194458 49706 0 3 0x810008a sigsusp ksh 49706 180804 71409 0 3 0x1800009a kqread sshd 40979 500242 1 0 3 0x18100083 ttyin getty 71409 176521 1 0 3 0x18000088 kqread sshd 85355 276793 77355 73 3 0x19100090 kqread syslogd 77355 359170 1 0 3 0x18100082 sbwait syslogd 94666 305010 1 0 3 0x18100080 kqread resolvd 51375 36330 79248 77 3 0x18100092 kqread dhcpleased 23218 459001 79248 77 3 0x18100092 kqread dhcpleased 79248 497556 1 0 3 0x18000080 kqread dhcpleased 23693 101547 0 0 3 0x14200 bored smr 59686 319258 0 0 2 0x14200 zerothread 99309 231772 0 0 3 0x14200 aiodoned aiodoned 49627 98267 0 0 3 0x14200 syncer update 44693 158973 0 0 3 0x14200 cleaner cleaner 38460 57707 0 0 3 0x14200 reaper reaper 70366 271892 0 0 3 0x14200 pgdaemon pagedaemon 13505 369104 0 0 3 0x14200 bored viomb 39693 427766 0 0 3 0x40014200 acpi0 acpi0 49069 253482 0 0 3 0x14200 bored softnet3 13670 450840 0 0 3 0x14200 bored softnet2 90798 390538 0 0 3 0x14200 bored softnet1 10932 114062 0 0 3 0x14200 bored softnet0 97921 215949 0 0 3 0x14200 bored systqmp 65894 2831 0 0 3 0x14200 bored systq 12741 272780 0 0 3 0x40014200 tmoslp softclock 4499 280779 0 0 3 0x40014200 idle0 1 130989 0 0 3 0x8080082 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb> show all locks No such command ddb> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10171 6415K 7247K 166960K 15325 0 pcb 16 14K 16K 166960K 326 0 rtable 216 8K 9K 166960K 931 0 pf 27 8K 9K 166960K 82 0 ifaddr 38 10K 11K 166960K 103 0 ifgroup 46 2K 2K 166960K 143 0 sysctl 3 1K 1K 166960K 4 0 counters 29 17K 17K 166960K 54 0 ioctlops 0 0K 2K 166960K 173 0 iov 0 0K 18K 166960K 206 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1502 94K 95K 166960K 3012 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 9K 166960K 58 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 1K 166960K 205 0 dirhash 12 2K 3K 166960K 36 0 ACPI 1697 195K 286K 166960K 12548 0 file desc 16 57K 77K 166960K 2072 0 sigio 0 0K 0K 166960K 101 0 proc 60 59K 75K 166960K 875 0 subproc 117 7K 7K 166960K 253 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 526 0 in_multi 87 6K 7K 166960K 263 0 ether_multi 2 0K 0K 166960K 11 0 mrt 2 0K 0K 166960K 7 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 97 440K 440K 166960K 97 0 exec 0 0K 1K 166960K 876 0 pfkey data 0 0K 1K 166960K 5 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 305 185K 197K 166960K 20108 0 UVM aobj 108 3K 4K 166960K 114 0 pinsyscall 37 74K 100K 166960K 3459 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 104 0 NDP 10 0K 2K 166960K 71 0 temp 75 6804K 7440K 166960K 33185 0 kqueue 12 18K 26K 166960K 261 0 SYN cache 2 16K 16K 166960K 2 0 ddb> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle rtpcb 120 180 0 176 1 0 1 1 0 8 0 rtentry 112 316 0 218 4 0 4 4 0 8 0 unpcb 144 1859 0 1844 6 0 6 6 0 8 5 syncache 336 57 0 57 1 0 1 1 0 8 1 sackhl 24 3 0 3 1 0 1 1 0 8 1 tcpqe 32 159 0 159 1 0 1 1 0 8 1 tcpcb 808 840 0 816 15 4 11 15 0 8 8 arp 88 40 0 26 1 0 1 1 0 8 0 ipq 40 1 0 1 1 0 1 1 0 8 1 ipqe 40 44 0 44 1 0 1 1 0 8 1 inpcb 360 2620 0 2591 14 2 12 14 0 8 8 nd6 104 59 0 35 1 0 1 1 0 8 0 pkpcb 40 81 0 81 1 0 1 1 0 8 1 kcovpl 48 19 0 10 1 0 1 1 0 8 0 ppxss 1072 4 0 4 1 0 1 1 0 8 1 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 914 0 498 29 0 29 29 0 8 3 art_table 32 915 0 498 4 0 4 4 0 8 0 art_node 16 231 0 142 1 0 1 1 0 8 0 sysvmsgpl 40 34 0 19 1 0 1 1 0 8 0 semupl 112 2 0 2 1 0 1 1 0 8 1 semapl 112 200 0 190 1 0 1 1 0 8 0 shmpl 112 111 0 6 3 0 3 3 0 8 0 dirhash 1024 33 0 16 3 0 3 3 0 8 0 dino2pl 256 4566 0 3053 96 0 96 96 0 8 0 ffsino 240 4566 0 3053 90 0 90 90 0 8 0 nchpl 144 7621 0 5893 66 0 66 66 0 8 0 uvmvnodes 80 5822 0 0 119 0 119 119 0 8 0 vnodes 216 5822 0 0 324 0 324 324 0 8 0 namei 1024 25802 0 25802 2 0 2 2 0 8 2 vcpupl 2048 14 0 1 2 0 2 2 0 8 0 vmpool 664 19 0 6 2 0 2 2 0 8 0 kstatmem 264 70 0 50 2 0 2 2 0 8 0 scxspl 216 26576 0 26575 8 0 8 8 1 8 7 plimitpl 152 358 0 342 1 0 1 1 0 8 0 sigapl 424 2368 0 2303 8 0 8 8 0 8 0 futexpl 64 29240 0 29238 1 0 1 1 0 8 0 knotepl 120 20483 0 20399 10 0 10 10 0 8 7 kqueuepl 184 598 0 590 4 0 4 4 0 8 3 pipepl 288 419 0 388 7 0 7 7 0 8 4 fdescpl 432 2330 0 2303 4 0 4 4 0 8 0 filepl 120 15634 0 15378 15 0 15 15 0 8 5 lockfpl 104 580 0 578 1 0 1 1 0 8 0 lockfspl 48 267 0 265 1 0 1 1 0 8 0 sessionpl 144 34 0 17 1 0 1 1 0 8 0 pgrppl 48 265 0 248 1 0 1 1 0 8 0 ucredpl 104 2247 0 2237 1 0 1 1 0 8 0 zombiepl 144 2304 0 2303 1 0 1 1 0 8 0 processpl 1072 2368 0 2303 5 0 5 5 0 8 0 procpl 656 4754 0 4671 9 0 9 9 0 8 0 sosppl 168 64 0 64 1 0 1 1 0 8 1 sockpl 488 4752 0 4704 61 45 16 29 0 8 8 mcl64k 65536 81 0 81 1 0 1 1 0 8 1 mcl16k 16384 60 0 60 1 0 1 1 0 8 1 mcl12k 12288 104 0 104 1 0 1 1 0 8 1 mcl9k 9216 18 0 18 1 0 1 1 0 8 1 mcl8k 8192 141 0 140 1 0 1 1 0 8 0 mcl4k 4096 284 0 284 1 0 1 1 0 8 1 mcl2k2 2112 11 0 11 1 0 1 1 0 8 1 mcl2k 2048 32245 0 32197 39 25 14 39 0 8 6 mtagpl 96 452 0 209 9 0 9 9 0 8 1 mbufpl 256 84691 0 84277 44 8 36 36 0 8 5 bufpl 280 7884 0 1554 453 0 453 453 0 8 0 bufpl: pool(0xffffffff82d3de58:bufpl): page inconsistency: page 0x0; at page head addr 0xfffffd8079396f90 (p 0xfffffd8079396000) anonpl 24 378870 0 373262 65 0 65 65 0 188 17 amapchunkpl 152 64856 0 64257 39 0 39 39 0 158 9 amappl16 200 8813 0 8720 33 18 15 18 0 8 8 amappl15 192 19 0 18 1 0 1 1 0 8 0 amappl14 184 199 0 184 2 0 2 2 0 8 1 amappl13 176 12 0 12 1 0 1 1 0 8 1 amappl12 168 3134 0 3104 2 0 2 2 0 8 0 amappl11 160 45 0 35 1 0 1 1 0 8 0 amappl10 152 89 0 72 1 0 1 1 0 8 0 amappl9 144 187 0 185 1 0 1 1 0 8 0 amappl8 136 262 0 196 3 0 3 3 0 8 0 amappl7 128 60 0 48 1 0 1 1 0 8 0 amappl6 120 510 0 489 2 0 2 2 0 8 0 amappl5 112 240 0 227 1 0 1 1 0 8 0 amappl4 104 622 0 586 2 0 2 2 0 8 0 amappl3 96 12989 0 12922 3 0 3 3 0 8 0 amappl2 88 2877 0 2806 3 0 3 3 0 8 1 amappl1 80 17073 0 16563 22 2 20 22 0 8 8 amappl 88 19354 0 19170 6 0 6 6 0 92 0 dma4096 4096 1 0 1 1 0 1 1 0 8 1 dma1024 1024 1 0 0 1 0 1 1 0 8 0 dma256 256 6 0 6 1 0 1 1 0 8 1 dma128 128 253 0 253 1 0 1 1 0 8 1 dma64 64 6 0 6 1 0 1 1 0 8 1 dma32 32 7 0 7 1 0 1 1 0 8 1 dma16 16 18 0 17 1 0 1 1 0 8 0 aobjpl 72 113 0 6 2 0 2 2 0 8 0 uaddrrnd 24 2349 0 2309 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 2349 0 2309 1 0 1 1 0 8 0 vmmpekpl 168 19570 0 19508 3 0 3 3 0 8 0 vmmpepl 168 158726 0 156896 110 0 110 110 0 357 19 vmsppl 344 2348 0 2309 4 0 4 4 0 8 0 rwobjpl 24 49488 0 42460 43 0 43 43 0 8 0 pdppl 4096 4704 0 4631 162 85 77 82 0 8 4 pvpl 32 963566 0 952114 358 13 345 358 0 265 231 pmappl 216 2348 0 2309 3 0 3 3 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 498 0 122 11 0 11 11 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff8292d44c) at panic+0x165 sys/kern/subr_prf.c:198 __assert(ffffffff828e346f,ffffffff828f0e96,eb,ffffffff82870b09) at __assert+0x29 sys/kern/subr_prf.c:157 buf_unmap(fffffd8079396258) at buf_unmap+0x1a8 sys/kern/vfs_biomem.c:235 buf_map(fffffd806b7858c0) at buf_map+0x1c6 sys/kern/vfs_biomem.c:117 buf_get(fffffd805bc42a40,3e,4000) at buf_get+0x42f sys/kern/vfs_bio.c:1175 getblk(fffffd805bc42a40,3e,4000,0,ffffffffffffffff) at getblk+0xfd sys/kern/vfs_bio.c:1044 ffs2_balloc(fffffd807cd6f2e0,f8000,11,fffffd807f7d76e8,1,ffff80002a69ccb8) at ffs2_balloc+0x11d9 sys/ufs/ffs/ffs_balloc.c:684 ffs_write(ffff80002a69cd40) at ffs_write+0x3c7 sys/ufs/ffs/ffs_vnops.c:345 VOP_WRITE(fffffd805bc42a40,ffff80002a69cdf0,3,fffffd807f7d76e8) at VOP_WRITE+0xc3 sys/kern/vfs_vops.c:245 ktrwriteraw(ffff80002a6ac7f0,fffffd805bc42a40,fffffd807f7d76e8,ffff80002a69ceb8,ffff80002a69ce90) at ktrwriteraw+0x149 sys/kern/kern_ktrace.c:682 ktrstruct(ffff80002a6ac7f0,ffffffff82859f91,ffff80002a69cf78,10) at ktrstruct+0x163 ktrwrite2 sys/kern/kern_ktrace.c:645 [inline] ktrstruct(ffff80002a6ac7f0,ffffffff82859f91,ffff80002a69cf78,10) at ktrstruct+0x163 sys/kern/kern_ktrace.c:308 sys_setrlimit(ffff80002a6ac7f0,ffff80002a69d0b0,ffff80002a69d000) at sys_setrlimit+0xba sys/kern/kern_resource.c:239 syscall(ffff80002a69d0b0) at syscall+0x72a sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7e78ea6bd720, count: -15 ddb> machine ddbcpu 1 No such command ddb> trace db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff8292d44c) at panic+0x165 sys/kern/subr_prf.c:198 __assert(ffffffff828e346f,ffffffff828f0e96,eb,ffffffff82870b09) at __assert+0x29 sys/kern/subr_prf.c:157 buf_unmap(fffffd8079396258) at buf_unmap+0x1a8 sys/kern/vfs_biomem.c:235 buf_map(fffffd806b7858c0) at buf_map+0x1c6 sys/kern/vfs_biomem.c:117 buf_get(fffffd805bc42a40,3e,4000) at buf_get+0x42f sys/kern/vfs_bio.c:1175 getblk(fffffd805bc42a40,3e,4000,0,ffffffffffffffff) at getblk+0xfd sys/kern/vfs_bio.c:1044 ffs2_balloc(fffffd807cd6f2e0,f8000,11,fffffd807f7d76e8,1,ffff80002a69ccb8) at ffs2_balloc+0x11d9 sys/ufs/ffs/ffs_balloc.c:684 ffs_write(ffff80002a69cd40) at ffs_write+0x3c7 sys/ufs/ffs/ffs_vnops.c:345 VOP_WRITE(fffffd805bc42a40,ffff80002a69cdf0,3,fffffd807f7d76e8) at VOP_WRITE+0xc3 sys/kern/vfs_vops.c:245 ktrwriteraw(ffff80002a6ac7f0,fffffd805bc42a40,fffffd807f7d76e8,ffff80002a69ceb8,ffff80002a69ce90) at ktrwriteraw+0x149 sys/kern/kern_ktrace.c:682 ktrstruct(ffff80002a6ac7f0,ffffffff82859f91,ffff80002a69cf78,10) at ktrstruct+0x163 ktrwrite2 sys/kern/kern_ktrace.c:645 [inline] ktrstruct(ffff80002a6ac7f0,ffffffff82859f91,ffff80002a69cf78,10) at ktrstruct+0x163 sys/kern/kern_ktrace.c:308 sys_setrlimit(ffff80002a6ac7f0,ffff80002a69d0b0,ffff80002a69d000) at sys_setrlimit+0xba sys/kern/kern_resource.c:239 syscall(ffff80002a69d0b0) at syscall+0x72a sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7e78ea6bd720, count: -15