Warning: Permanently added '10.128.0.46' (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 executing program executing program executing program executing program executing program uvm_fault(0xfffffd806d2c9780, 0x8, 0, 1) -> e kernel: page fault trap, code=0 Stopped at fifo_write+0x4e: movq 0x8(%rax),%r12 TID PID UID PRFLAGS PFLAGS CPU COMMAND *290330 93464 0 0 0 0 syz-executor411574844 fifo_write(ffff800021787760) at fifo_write+0x4e VOP_WRITE(fffffd806c625458,ffff8000217877f8,8,fffffd807f7d78f0) at VOP_WRITE+0xbf vn_rdwr(1,fffffd806c625458,ffff8000216f7800,101,0,1,d9047f15e8059303,ffff800021787920,fffffd806c625458,78) at vn_rdwr+0xe9 ufs_symlink(ffff800021787920) at ufs_symlink+0x136 VOP_SYMLINK(fffffd806c625b18,ffff800021787aa0,ffff800021787ad0,ffff8000217879d0,ffff8000216f7800) at VOP_SYMLINK+0xd0 dosymlinkat(ffff8000216f5260,200004c0,3,20000600) at dosymlinkat+0x154 syscall(ffff800021787c50) at syscall+0x446 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffbf7d0, count: 7 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: uvm_fault(0xfffffd806d2c9780, 0x8, 0, 1) -> e ddb> trace fifo_write(ffff800021787760) at fifo_write+0x4e VOP_WRITE(fffffd806c625458,ffff8000217877f8,8,fffffd807f7d78f0) at VOP_WRITE+0xbf vn_rdwr(1,fffffd806c625458,ffff8000216f7800,101,0,1,d9047f15e8059303,ffff800021787920,fffffd806c625458,78) at vn_rdwr+0xe9 ufs_symlink(ffff800021787920) at ufs_symlink+0x136 VOP_SYMLINK(fffffd806c625b18,ffff800021787aa0,ffff800021787ad0,ffff8000217879d0,ffff8000216f7800) at VOP_SYMLINK+0xd0 dosymlinkat(ffff8000216f5260,200004c0,3,20000600) at dosymlinkat+0x154 syscall(ffff800021787c50) at syscall+0x446 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffbf7d0, count: -8 ddb> show registers rdi 0x1 rsi 0x1 rbp 0xffff800021787750 rbx 0x8 rdx 0x8 rcx 0x1 rax 0 r8 0 r9 0x1 r10 0x1ea23b1352a20a71 r11 0x5402baa6f999f2ba r12 0x1 r13 0xffff8000217877f8 r14 0xffff800021787760 r15 0xfffffd806c625458 rip 0xffffffff8181b5de fifo_write+0x4e cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff800021787710 ss 0x10 fifo_write+0x4e: movq 0x8(%rax),%r12 ddb> show proc PROC (syz-executor411574844) pid=290330 stat=onproc flags process=0 proc=0 pri=17, usrpri=50, nice=20 forw=0xffffffffffffffff, list=0xffff8000216f5ce0,0xffff8000216f57b0 process=0xffff800021709b88 user=0xffff800021782000, vmspace=0xfffffd806d2c9780 estcpu=0, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 75131 480427 99531 0 2 0 syz-executor411574844 *93464 290330 83965 0 7 0 syz-executor411574844 3912 397535 17876 0 2 0x480 syz-executor411574844 25570 207260 17876 0 2 0 syz-executor411574844 93440 146802 17876 0 2 0x480 syz-executor411574844 16684 307516 17876 0 2 0x480 syz-executor411574844 81116 244606 17876 0 2 0 syz-executor411574844 15061 487562 17876 0 2 0x480 syz-executor411574844 83965 203628 17876 0 2 0x480 syz-executor411574844 99531 107306 17876 0 3 0x80 nanoslp syz-executor411574844 17876 202424 82288 0 3 0x82 nanoslp syz-executor411574844 82288 78760 24164 0 3 0x10008a sigsusp ksh 24164 494983 95751 0 3 0x9a kqread sshd 36604 199438 1 0 3 0x100083 ttyin getty 95751 226392 1 0 3 0x88 kqread sshd 61368 1296 72457 73 3 0x1100090 kqread syslogd 72457 524190 1 0 3 0x100082 netio syslogd 14673 425342 1 0 3 0x100080 kqread resolvd 27345 521161 62177 77 3 0x100092 kqread dhcpleased 54957 237614 62177 77 3 0x100092 kqread dhcpleased 62177 236417 1 0 3 0x80 kqread dhcpleased 538 386781 0 0 3 0x14200 bored smr 66073 14339 0 0 3 0x14200 pgzero zerothread 2824 444891 0 0 3 0x14200 aiodoned aiodoned 96393 513352 0 0 3 0x14200 syncer update 16609 118863 0 0 3 0x14200 cleaner cleaner 98038 502216 0 0 3 0x14200 reaper reaper 53554 25442 0 0 3 0x14200 pgdaemon pagedaemon 61911 312263 0 0 3 0x14200 bored viomb 77174 247244 0 0 3 0x40014200 acpi0 acpi0 25702 314771 0 0 3 0x14200 bored softnet 26139 2599 0 0 3 0x14200 bored softnet 25428 67858 0 0 3 0x14200 bored softnet 49598 269596 0 0 3 0x14200 bored softnet 18489 368007 0 0 3 0x14200 bored systqmp 85444 356694 0 0 3 0x14200 bored systq 9559 460256 0 0 3 0x40014200 bored softclock 82362 78584 0 0 3 0x40014200 idle0 1 316289 0 0 3 0x82 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 10149 6383K 6414K 78643K 11239 0 pcb 13 8K 8K 78643K 13 0 rtable 58 1K 2K 78643K 111 0 ifaddr 25 7K 7K 78643K 25 0 counters 19 16K 16K 78643K 19 0 ioctlops 0 0K 2K 78643K 25 0 mount 1 1K 1K 78643K 1 0 log 0 0K 0K 78643K 4 0 vnodes 1166 73K 73K 78643K 1179 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 0K 0K 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 55 58K 59K 78643K 239 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 1K 78643K 244 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 8 62K 64K 78643K 10 0 UVM amap 73 4K 4K 78643K 1238 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 3 0K 0K 78643K 3 0 temp 18 4713K 4777K 78643K 2873 0 kqueue 11 16K 18K 78643K 24 0 SYN cache 2 16K 16K 78643K 2 0 ddb> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle rtpcb 120 21 0 18 1 0 1 1 0 8 0 rtentry 112 23 0 1 1 0 1 1 0 8 0 unpcb 144 33 0 20 1 0 1 1 0 8 0 syncache 296 5 0 5 2 1 1 1 0 8 1 tcpcb 768 8 0 5 1 0 1 1 0 8 0 arp 88 2 0 0 1 0 1 1 0 8 0 inpcb 336 25 0 19 1 0 1 1 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 1477 0 76 88 0 88 88 0 8 0 ffsino 240 1477 0 76 83 0 83 83 0 8 0 nchpl 144 1660 0 88 59 0 59 59 0 8 0 uvmvnodes 80 1486 0 0 31 0 31 31 0 8 0 vnodes 216 1486 0 0 83 0 83 83 0 8 0 namei 1024 4409 0 4406 3 1 2 2 0 8 1 kstatmem 264 6 0 0 1 0 1 1 0 8 0 scxspl 216 4579 0 4579 10 9 1 8 0 8 1 plimitpl 152 16 0 10 1 0 1 1 0 8 0 sigapl 424 331 0 288 6 0 6 6 0 8 0 knotepl 120 10513 0 10484 3 1 2 2 0 8 1 kqueuepl 184 20 0 13 1 0 1 1 0 8 0 pipepl 288 99 0 96 2 1 1 1 0 8 0 fdescpl 432 315 0 292 4 0 4 4 0 8 1 filepl 120 1173 0 1117 2 0 2 2 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 17 0 9 1 0 1 1 0 8 0 pgrppl 48 17 0 9 1 0 1 1 0 8 0 ucredpl 104 66 0 56 1 0 1 1 0 8 0 zombiepl 144 292 0 288 2 1 1 1 0 8 0 processpl 1000 331 0 288 7 1 6 6 0 8 0 procpl 672 331 0 288 4 0 4 4 0 8 0 sockpl 456 79 0 57 3 0 3 3 0 8 0 mcl8k 8192 9 0 9 2 1 1 1 0 8 1 mcl4k 4096 5 0 5 2 1 1 1 0 8 1 mcl2k 2048 10746 0 10708 8 1 7 7 0 8 0 mtagpl 96 4 0 4 1 1 0 1 0 8 0 mbufpl 256 19247 0 19165 7 0 7 7 0 8 1 bufpl 288 2388 0 72 166 0 166 166 0 8 0 anonpl 24 41867 0 39309 19 3 16 16 0 188 0 amapchunkpl 152 2727 0 2599 6 1 5 5 0 158 0 amappl16 200 49 0 39 2 1 1 1 0 8 0 amappl14 184 87 0 78 1 0 1 1 0 8 0 amappl12 168 298 0 297 2 1 1 1 0 8 0 amappl11 160 40 0 30 1 0 1 1 0 8 0 amappl10 152 1 0 1 1 1 0 1 0 8 0 amappl9 144 943 0 942 1 0 1 1 0 8 0 amappl8 136 20 0 17 1 0 1 1 0 8 0 amappl7 128 18 0 14 1 0 1 1 0 8 0 amappl6 120 117 0 108 1 0 1 1 0 8 0 amappl5 112 78 0 70 1 0 1 1 0 8 0 amappl4 104 367 0 338 1 0 1 1 0 8 0 amappl3 96 439 0 407 1 0 1 1 0 8 0 amappl2 88 508 0 460 3 1 2 2 0 8 0 amappl1 80 9193 0 8682 14 3 11 11 0 8 0 amappl 88 1085 0 1032 2 0 2 2 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 24 315 0 292 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 315 0 292 1 0 1 1 0 8 0 vmmpekpl 168 6873 0 6859 1 0 1 1 0 8 0 vmmpepl 168 27521 0 26326 60 5 55 55 0 357 1 vmsppl 272 314 0 292 3 1 2 2 0 8 0 rwobjpl 24 10466 0 8296 14 0 14 14 0 8 0 pdppl 4096 636 0 584 86 22 64 64 0 8 12 pvpl 32 131045 0 125899 50 8 42 42 0 265 0 pmappl 216 314 0 292 2 0 2 2 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 464 0 30 13 0 13 13 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace fifo_write(ffff800021787760) at fifo_write+0x4e VOP_WRITE(fffffd806c625458,ffff8000217877f8,8,fffffd807f7d78f0) at VOP_WRITE+0xbf vn_rdwr(1,fffffd806c625458,ffff8000216f7800,101,0,1,d9047f15e8059303,ffff800021787920,fffffd806c625458,78) at vn_rdwr+0xe9 ufs_symlink(ffff800021787920) at ufs_symlink+0x136 VOP_SYMLINK(fffffd806c625b18,ffff800021787aa0,ffff800021787ad0,ffff8000217879d0,ffff8000216f7800) at VOP_SYMLINK+0xd0 dosymlinkat(ffff8000216f5260,200004c0,3,20000600) at dosymlinkat+0x154 syscall(ffff800021787c50) at syscall+0x446 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffbf7d0, count: -8 ddb> machine ddbcpu 1 No such command ddb> trace fifo_write(ffff800021787760) at fifo_write+0x4e VOP_WRITE(fffffd806c625458,ffff8000217877f8,8,fffffd807f7d78f0) at VOP_WRITE+0xbf vn_rdwr(1,fffffd806c625458,ffff8000216f7800,101,0,1,d9047f15e8059303,ffff800021787920,fffffd806c625458,78) at vn_rdwr+0xe9 ufs_symlink(ffff800021787920) at ufs_symlink+0x136 VOP_SYMLINK(fffffd806c625b18,ffff800021787aa0,ffff800021787ad0,ffff8000217879d0,ffff8000216f7800) at VOP_SYMLINK+0xd0 dosymlinkat(ffff8000216f5260,200004c0,3,20000600) at dosymlinkat+0x154 syscall(ffff800021787c50) at syscall+0x446 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffbf7d0, count: -8 ddb>