Date: Mon, 19 Aug 2013 13:58:40 -0400 From: John Baldwin <jhb@freebsd.org> To: freebsd-current@freebsd.org Cc: "O. Hartmann" <ohartman@zedat.fu-berlin.de>, Boris Samorodov <bsam@passap.ru> Subject: Re: /etc/namedb->@ referrs to NIL after crash or typing "reboot" (not shutdown -r) Message-ID: <201308191358.40555.jhb@freebsd.org> In-Reply-To: <A89885AB-7819-4F0A-A98E-7C35394CD0A0@kientzle.com> References: <20130817113636.21346cd2@thor.walstatt.dyndns.org> <20130817193517.2bf01dfe@thor.walstatt.dyndns.org> <A89885AB-7819-4F0A-A98E-7C35394CD0A0@kientzle.com>
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On Saturday, August 17, 2013 1:42:07 pm Tim Kientzle wrote: >=20 > On Aug 17, 2013, at 10:35 AM, O. Hartmann wrote: >=20 > > On Sat, 17 Aug 2013 21:10:49 +0400 > > Boris Samorodov <bsam@passap.ru> wrote: > >=20 > >> 17.08.2013 13:36, O. Hartmann =D0=BF=D0=B8=D1=88=D0=B5=D1=82: > >>=20 > >>> I can reproduceable truncate the link in /etc/ to be NIL by typing > >>> simply "reboot" when rebooting the box > >>=20 > >> Does it make any difference if you use "shutdown -r" instead? > >>=20 > >=20 > > Yes, when using "shutdown -r" the link isn't broken and the system > > reboots and operates as expected. Only if I use the "quick and dirty > > way" via "reboot" or after a crash when service named ahs already been > > started the link is dead. If a crahs occurs BEFORE service named has > > been started, the recovery is also operable - this is my observation. >=20 > Does "reboot" show the same problem If the system has been running > for a while (at least 15 minutes or so)? >=20 > Your broken link sounds like the expected behavior when you > do a dirty reboot shortly after the link has been created (before > the link contents have been written all the way to disk). "reboot" shouldn't be a dirty reboot in this sense though. The disks shoul= d=20 still be synced if you do a reboot. Only a panic or power failure should g= ive=20 you unsynced disks. =2D-=20 John Baldwin
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