Warning: Permanently added '10.128.0.188' (ED25519) to the list of known hosts. 2026/02/03 18:45:09 ignoring optional flag "type"="gce" 2026/02/03 18:45:09 parsed 1 programs 2026/02/03 18:45:10 executed programs: 0 vnd0: sloppy read from proc 1878 (syz-executor.0): blkno 0 bcount 29 witness: lock order reversal: 1st 0xfffffd806f6222f0 vmmaplk (&map->lock) 2nd 0xfffffd806b570a10 inode (&ip->i_lock) lock order [1] vmmaplk (&map->lock) -> [2] inode (&ip->i_lock) #0 rw_do_enter_write+0xba #1 rrw_enter+0xc6 #2 VOP_LOCK+0xbd #3 vn_lock+0xa4 #4 vn_rdwr+0xd1 #5 vndstrategy+0x4bd #6 physio+0x2d6 #7 spec_read+0x14b #8 VOP_READ+0x101 #9 vn_read+0x17b #10 dofilereadv+0x25a #11 sys_readv+0xd8 #12 syscall+0xbd4 #13 Xsyscall+0x128 lock order [2] inode (&ip->i_lock) -> [1] vmmaplk (&map->lock) #0 rw_do_enter_read+0x99 #1 uvmfault_lookup+0x122 #2 uvm_fault_check+0x4f #3 uvm_fault+0x106 #4 kpageflttrap+0x2f4 #5 kerntrap+0x19c #6 alltraps_kern_meltdown+0x7b #7 copyout+0x64 #8 ffs_read+0x3f2 #9 VOP_READ+0x101 #10 vn_rdwr+0x15b #11 vmcmd_map_readvn+0x130 #12 exec_process_vmcmds+0xef #13 sys_execve+0xd3d #14 start_init+0x3c3 #15 proc_trampoline+0x10 Stopped at db_enter+0x25: addq $0x8,%rsp ddb{1}> ddb{1}> set $lines = 0 ddb{1}> set $maxwidth = 0 ddb{1}> show panic the kernel did not panic ddb{1}> trace db_enter() at db_enter+0x25 witness_checkorder(fffffd806b570a10,9,0) at witness_checkorder+0x10d1 rw_do_enter_write(fffffd806b5709f8,1) at rw_do_enter_write+0xba rrw_enter(fffffd806b5709f8,1) at rrw_enter+0xc6 VOP_LOCK(fffffd8078775050,2001) at VOP_LOCK+0xbd vn_lock(fffffd8078775050,2001) at vn_lock+0xa4 vn_rdwr(0,fffffd8078775050,ffff800011a26740,1d,0,1,51db9fca35543f62,0,1d,0) at vn_rdwr+0xd1 vndstrategy(fffffd8067bbce60) at vndstrategy+0x4bd physio(ffffffff81dc9b40,2902,8000,ffffffff817971a0,ffff80002a33c590) at physio+0x2d6 spec_read(ffff80002a33c370) at spec_read+0x14b VOP_READ(fffffd8070324000,ffff80002a33c590,0,fffffd80097fd4e0) at VOP_READ+0x101 vn_read(fffffd806a17f028,ffff80002a33c590,0) at vn_read+0x17b dofilereadv(ffff80002a2f14f0,5,ffff80002a33c590,0,ffff80002a33c650) at dofilereadv+0x25a sys_readv(ffff80002a2f14f0,ffff80002a33c700,ffff80002a33c650) at sys_readv+0xd8 syscall(ffff80002a33c700) at syscall+0xbd4 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xac763578c40, count: -16 ddb{1}> show registers rdi 0 rsi 0 rbp 0xffff80002a33be60 rbx 0 rdx 0x3fd rcx 0 rax 0x1 r8 0xffff80002a33bd40 r9 0x8080808080808080 r10 0xa96ed831bcc40327 r11 0xfa004e173b0501be r12 0xfffffd8003f502c0 r13 0xfffffd8004740890 r14 0x3 r15 0xffffffff8341fbb5 substchar+0x5cd0 rip 0xffffffff830bce75 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff80002a33be50 ss 0x10 db_enter+0x25: addq $0x8,%rsp ddb{1}> show proc PROC (syz-executor.0) tid=105467 pid=1878 tcnt=2 stat=onproc flags process=0 proc=4000000 runpri=17, usrpri=50, slppri=17, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80002a2f0030,0xffffffff83986038 process=0xffff8000ffff4e78 user=0xffff80002a337000, vmspace=0xfffffd806f6221f0 estcpu=36, cpticks=0, pctcpu=0.0, user=0, sys=0, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 1878 397961 1475 0 7 0 syz-executor.0 * 1878 105467 1475 0 7 0x4000000 syz-executor.0 1475 216145 2017 0 3 0x82 nanoslp syz-executor.0 2017 209503 22571 0 3 0x82 thrsleep syz-execprog 2017 141256 22571 0 3 0x4000082 nanoslp syz-execprog 2017 127257 22571 0 3 0x4000082 thrsleep syz-execprog 2017 343901 22571 0 3 0x4000082 thrsleep syz-execprog 2017 297172 22571 0 3 0x4000082 kqread syz-execprog 2017 503582 22571 0 3 0x4000082 wait syz-execprog 2017 411848 22571 0 3 0x4000082 thrsleep syz-execprog 2017 2632 22571 0 3 0x4000082 thrsleep syz-execprog 2017 267819 22571 0 3 0x4000082 thrsleep syz-execprog 2017 388632 22571 0 3 0x4000082 thrsleep syz-execprog 2017 440868 22571 0 3 0x4000082 thrsleep syz-execprog 2017 124545 22571 0 3 0x4000082 thrsleep syz-execprog 22571 215486 9608 0 3 0x10008a sigsusp ksh 9608 451863 19610 0 3 0x98 kqread sshd-session 19610 126488 30448 0 3 0x92 kqread sshd-session 65463 389073 1 0 3 0x100083 ttyin getty 30448 141937 1 0 3 0x88 kqread sshd 76646 302776 6887 74 3 0x1100092 bpf pflogd 6887 425450 1 0 3 0x80 sbwait pflogd 80244 411979 2725 73 3 0x1100090 kqread syslogd 2725 153869 1 0 3 0x100082 sbwait syslogd 80925 266273 1 0 3 0x100080 kqread resolvd 46608 511311 14671 77 3 0x100092 kqread dhcpleased 13792 480352 14671 77 3 0x100092 kqread dhcpleased 14671 54982 1 0 3 0x80 kqread dhcpleased 24133 504568 0 0 3 0x14200 bored smr 650 6579 0 0 3 0x14200 pgzero zerothread 92617 94267 0 0 3 0x14200 aiodoned aiodoned 21519 431816 0 0 3 0x14200 syncer update 37986 513176 0 0 3 0x14200 cleaner cleaner 30781 160020 0 0 3 0x14200 reaper reaper 52182 11299 0 0 3 0x14200 pgdaemon pagedaemon 41881 224274 0 0 3 0x14200 bored viomb 32683 302926 0 0 3 0x40014200 acpi0 acpi0 24753 413211 0 0 3 0x40014200 idle1 32654 489748 0 0 3 0x14200 bored softnet1 88765 489728 0 0 3 0x14200 bored softnet0 44803 98850 0 0 3 0x14200 smrbar systqmp 96252 13327 0 0 3 0x14200 bored systq 30308 94773 0 0 3 0x14200 tmoslp softclockmp 19679 488003 0 0 3 0x40014200 tmoslp softclock 57927 71934 0 0 3 0x40014200 idle0 1 170625 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 1878 (syz-executor.0) thread 0xffff80002a2f14f0 (105467) shared rwlock vmmaplk r = 0 (0xfffffd806f6222f0) #0 witness_lock+0x5f1 #1 rw_do_enter_read+0x3e8 #2 uvm_vslock_device+0x149 #3 physio+0x257 #4 spec_read+0x14b #5 VOP_READ+0x101 #6 vn_read+0x17b #7 dofilereadv+0x25a #8 sys_readv+0xd8 #9 syscall+0xbd4 #10 Xsyscall+0x128 exclusive kernel_lock &kernel_lock r = 0 (0xffffffff839f74c0) #0 witness_lock+0x5f1 #1 vn_read+0x56 #2 dofilereadv+0x25a #3 sys_readv+0xd8 #4 syscall+0xbd4 #5 Xsyscall+0x128 Process 44803 (systqmp) thread 0xffff8000ffffe530 (98850) shared rwlock systqmp r = 0 (0xffffffff838976f8) #0 witness_lock+0x5f1 #1 taskq_thread+0x12a #2 proc_trampoline+0x10 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 11030 12070K 12072K 166960K 12126 0 pcb 17 12K 12K 166960K 17 0 rtable 83 2K 2K 166960K 173 0 pf 20 15K 18K 166960K 27 0 ifaddr 15 2K 2K 166960K 19 0 ifgroup 27 1K 1K 166960K 32 0 sysctl 1 1K 9K 166960K 5 0 counters 56 35K 35K 166960K 58 0 ioctlops 0 0K 4K 166960K 1458 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1265 80K 80K 166960K 1289 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 1K 166960K 2 0 VM map 2 1K 1K 166960K 2 0 sem 2 0K 0K 166960K 2 0 dirhash 12 2K 2K 166960K 12 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 3 8K 13K 166960K 41 0 proc 69 115K 131K 166960K 359 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 in_multi 22 1K 1K 166960K 33 0 ether_multi 1 0K 0K 166960K 1 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 25 122K 122K 166960K 25 0 exec 0 0K 1K 166960K 357 0 fusefs mount 1 32K 32K 166960K 1 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 196 111K 224K 166960K 4097 0 UVM aobj 3 2K 2K 166960K 3 0 pinsyscall 30 60K 112K 166960K 1315 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 NDP 7 0K 0K 166960K 10 0 temp 1 8672K 8736K 166960K 4579 0 kqueue 13 20K 20K 166960K 46 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 22 0 19 1 0 1 1 0 8 0 rtentry 176 45 0 12 3 1 2 2 0 8 0 unpcb 144 69 0 52 1 0 1 1 0 8 0 syncache 336 9 0 9 2 1 1 1 0 8 1 tcpcb 736 12 0 9 1 0 1 1 0 8 0 arp 136 6 0 2 1 0 1 1 0 8 0 inpcb 328 45 0 39 1 0 1 1 0 8 0 nd6 152 6 0 3 2 1 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 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 192 0 48 12 3 9 9 0 8 0 art_table 40 193 0 48 3 1 2 2 0 8 0 art_node 32 45 0 14 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 1584 0 83 95 1 94 95 0 8 0 ffsino 296 1584 0 83 116 0 116 116 0 8 0 nchpl 144 1847 0 109 65 0 65 65 0 8 0 vnodes 216 1599 0 0 89 0 89 89 0 8 0 namei 1024 6639 0 6639 3 2 1 2 0 8 1 percpumem 16 44 0 1 1 0 1 1 0 8 0 kstatmem 264 14 0 2 1 0 1 1 0 8 0 scxspl 216 9565 0 9565 10 4 6 8 1 8 6 plimitpl 152 52 0 42 1 0 1 1 0 8 0 sigapl 424 431 0 397 8 2 6 6 0 8 2 knotepl 120 79 0 0 3 0 3 3 0 8 0 kqueuepl 224 42 0 33 1 0 1 1 0 8 0 pipepl 344 165 0 158 4 2 2 2 0 8 1 fdescpl 528 415 0 397 3 1 2 3 0 8 0 filepl 160 2027 0 1950 6 2 4 5 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 28 0 18 1 0 1 1 0 8 0 pgrppl 48 28 0 18 1 0 1 1 0 8 0 ucredpl 104 153 0 139 1 0 1 1 0 8 0 zombiepl 144 397 0 397 2 1 1 1 0 8 1 processpl 1232 431 0 397 5 1 4 4 0 8 1 procpl 664 455 0 409 7 2 5 5 0 8 0 sockpl 752 136 0 110 3 0 3 3 0 8 0 mcl8k 8192 2 0 0 1 0 1 1 0 8 0 mcl4k 4096 172 0 0 22 0 22 22 0 8 0 mcl2k 2048 16 0 0 2 0 2 2 0 8 0 mtagpl 96 3 0 0 1 0 1 1 0 8 0 mbufpl 256 174 0 0 11 0 11 11 0 8 0 bufpl 280 4836 0 216 330 0 330 330 0 8 0 anonpl 32 9832 0 0 81 1 80 80 0 246 0 amapchunkpl 152 12888 0 12493 39 12 27 29 0 158 7 amappl16 200 4343 0 4271 8 3 5 5 0 8 0 amappl15 192 15 0 15 2 2 0 1 0 8 0 amappl14 184 26 0 24 2 1 1 1 0 8 0 amappl13 176 414 0 413 2 1 1 1 0 8 0 amappl12 168 875 0 844 4 1 3 3 0 8 1 amappl11 160 77 0 77 2 2 0 1 0 8 0 amappl10 152 117 0 101 3 1 2 2 0 8 1 amappl9 144 1150 0 1150 2 1 1 1 0 8 1 amappl8 136 176 0 151 1 0 1 1 0 8 0 amappl7 128 142 0 136 1 0 1 1 0 8 0 amappl6 120 345 0 326 3 1 2 2 0 8 1 amappl5 112 170 0 160 1 0 1 1 0 8 0 amappl4 104 629 0 597 3 1 2 2 0 8 0 amappl3 96 1348 0 1297 4 2 2 2 0 8 0 amappl2 88 990 0 926 8 4 4 5 0 8 1 amappl1 80 17041 0 16489 35 12 23 24 0 8 9 amappl 88 2997 0 2892 7 3 4 5 0 92 1 uvmvnodes 80 90 0 0 2 0 2 2 0 8 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 24 415 0 397 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 415 0 397 1 0 1 1 0 8 0 vmmpekpl 168 11871 0 11848 2 0 2 2 0 8 0 vmmpepl 168 60685 0 59189 137 15 122 128 0 357 52 vmsppl 488 414 0 397 5 1 4 4 0 8 1 rwobjpl 80 24786 0 23824 57 19 38 40 0 8 13 pdppl 4096 837 0 794 107 44 63 67 0 8 20 pvpl 32 53500 0 0 432 0 432 432 0 265 0 pmappl 256 414 0 397 2 0 2 2 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 265 0 53 7 0 7 7 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp ddb{0}> trace x86_ipi_db(ffffffff838b4ff0) at x86_ipi_db+0x27 x86_ipi_handler() at x86_ipi_handler+0xd9 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27 __mp_lock(ffffffff839f6cc0) at __mp_lock+0x192 intr_handler(ffff80002a31a3f0,ffff800000079600) at intr_handler+0xe9 Xintr_ioapic_edge16_untramp() at Xintr_ioapic_edge16_untramp+0x18f __mp_lock(ffffffff839f6cc0) at __mp_lock+0x1a3 softintr_dispatch(0) at softintr_dispatch+0x125 dosoftint(0) at dosoftint+0x54 Xsoftclock() at Xsoftclock+0x27 end of kernel end trace frame: 0x7e99a34f0680, count: -10 ddb{0}> machine ddbcpu 1 Stopped at db_enter+0x25: addq $0x8,%rsp ddb{1}> trace db_enter() at db_enter+0x25 witness_checkorder(fffffd806b570a10,9,0) at witness_checkorder+0x10d1 rw_do_enter_write(fffffd806b5709f8,1) at rw_do_enter_write+0xba rrw_enter(fffffd806b5709f8,1) at rrw_enter+0xc6 VOP_LOCK(fffffd8078775050,2001) at VOP_LOCK+0xbd vn_lock(fffffd8078775050,2001) at vn_lock+0xa4 vn_rdwr(0,fffffd8078775050,ffff800011a26740,1d,0,1,51db9fca35543f62,0,1d,0) at vn_rdwr+0xd1 vndstrategy(fffffd8067bbce60) at vndstrategy+0x4bd physio(ffffffff81dc9b40,2902,8000,ffffffff817971a0,ffff80002a33c590) at physio+0x2d6 spec_read(ffff80002a33c370) at spec_read+0x14b VOP_READ(fffffd8070324000,ffff80002a33c590,0,fffffd80097fd4e0) at VOP_READ+0x101 vn_read(fffffd806a17f028,ffff80002a33c590,0) at vn_read+0x17b dofilereadv(ffff80002a2f14f0,5,ffff80002a33c590,0,ffff80002a33c650) at dofilereadv+0x25a sys_readv(ffff80002a2f14f0,ffff80002a33c700,ffff80002a33c650) at sys_readv+0xd8 syscall(ffff80002a33c700) at syscall+0xbd4 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xac763578c40, count: -16