I changed partition id from A6 to NTFS of running OpenBSD 5.5 (16.-18.6. amd64 snapshot) and after a while OS freezed.
Reproduce steps: - 5.5 snapshot amd64 (under RHEVM Linux/KVM: virtio block, virtio net) - install OS - boot OS - fdisk -e sd0 - change A6 to NTFS, save, exit fdisk - wait a moment, meanwhile browser filesystem Screenshots: - http://devio.us/~jirib/trace.png - http://devio.us/~jirib/ps1.png - http://devio.us/~jirib/ps2.png I see kernel panic (retyped): ~~~ login: /usr/src: bad dir ino 2 at offset 0: mangled entry panic: bad dir Stopped at Debugger+0x9: leave RUN AT LEAST 'trace' AND 'ps' AND INCLUDE OUTPUT WHEN REPORTING THIS PANIC! IF RUNNING SMP, USE 'mach ddbcpu <#_' AND 'trace' ON OTHER PROCESSORS, TOO. DO NOT EUEN BOTHER REPORTING THIS WITHOUT INCLUDING THAT INFORMATION! ddb{0}> trace Debugger() at Debugger+0x9 panic() at panic+0xfe ufs_makedirentry() at ufs_makedirentry ufs_lookup() at ufs_lookup+0x6fd VOP_LOOKUP() at VOP_LOOKUP+0x39 vfs_lookup() at vfs_lookup+0x274 namei() at namei+0x231 dofstatat() at dofstatat+0x89 syscall() at syscall+0x297 --- syscall (number 38) --- end of kernel end trace frame: 0x7f7ffffcb030, count: -9 acpi pdirpa+0x3fd5ea: ddb{0}> acpi pdirpa+0x3fd5ea: ddb{0}> ps PID PPID PGRP UID S FLAGS WAIT COMMAND *27749 17385 27749 0 7 0x3 ls 17385 23958 17385 0 3 0x8b pause ksh 23958 10996 23958 0 3 0x92 select sshd 25891 1 25891 0 3 0x83 ttyin getty 10068 1 10068 0 3 0x83 ttyin getty 29316 1 29316 0 3 0x83 ttyin getty 6170 1 6170 0 3 0x83 ttyin getty 25916 1 25916 0 3 0x83 ttyin getty 19663 1 19663 0 3 0x80 select cron 14534 1 14534 99 3 0x90 poll sndiod 14856 20760 20760 95 3 0x90 kqread smtpd 9262 20760 20760 95 3 0x90 kqread smtpd 31647 20760 20760 95 3 0x90 kqread smtpd 32759 20760 20760 95 3 0x90 kqread smtpd 6366 20760 20760 95 3 0x90 kqread smtpd 6102 20760 20760 103 3 0x90 kqread smtpd 20760 1 20760 0 3 0x80 kqread smtpd 10996 1 10996 0 3 0x80 select sshd 21460 22632 22632 74 3 0x90 bpf pflogd 22632 1 22632 0 3 0x80 netio pflogd 23598 9054 9054 73 7 0x90 syslogd --db_more-- 21460 22632 22632 74 3 0x90 bpf pflogd 22632 1 22632 0 3 0x80 netio pflogd 23598 9054 9054 73 7 0x90 syslogd 9054 1 9054 0 3 0x80 netio syslogd 9304 1 9304 77 3 0x90 poll dhclient 3682 1 3682 0 3 0x80 poll dhclient 7229 0 0 0 3 0x14200 aiodoned aiodoned 20673 0 0 0 3 0x14200 syncer update 3720 0 0 0 3 0x14200 cleaner cleaner 5618 0 0 0 3 0x14200 reaper reaper 302 0 0 0 3 0x14200 pgdaemon pagedaemon 20611 0 0 0 3 0x14200 bored crypto 18571 0 0 0 3 0x14200 pftm pfpurge 23643 0 0 0 3 0x14200 usbtsk usbtask 15777 0 0 0 3 0x14200 usbatsk usbatsk 12673 0 0 0 3 0x14200 bored viomb 27497 0 0 0 3 0x40014200 acpi0 acpi0 12454 0 0 0 3 0x40014200 idle1 15693 0 0 0 3 0x14200 bored systqmp 20336 0 0 0 3 0x14200 bored systq 6798 0 0 0 3 0x14200 bored syswq 29093 0 0 0 3 0x40014200 idle0 1 0 1 0 3 0x82 wait init 0 -1 0 0 3 0x10200 scheduler swapper ddb{0}> j.
