Date: Mon, 11 Dec 2017 13:58:03 +0100 From: Polytropon <freebsd@edvax.de> To: freebsd@dreamchaser.org Cc: Adam Vande More <amvandemore@gmail.com>, FreeBSD Questions <freebsd-questions@freebsd.org> Subject: Re: Subject: Thunderbird causing system crash, need guidance Message-ID: <20171211135803.d1aff6c8.freebsd@edvax.de> In-Reply-To: <38e2ef70-fa1b-25bf-4447-752006418d0a@dreamchaser.org> References: <201712110045.vBB0jCTQ078476@nightmare.dreamchaser.org> <CA%2BtpaK0sG31TckxL8orNmAD0ZXSz7rJzEotjsCEtASw9u2COZg@mail.gmail.com> <38e2ef70-fa1b-25bf-4447-752006418d0a@dreamchaser.org>
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On Sun, 10 Dec 2017 21:56:16 -0700, Gary Aitken wrote: > On 12/10/17 19:02, Adam Vande More wrote: > > On Sun, Dec 10, 2017 at 6:45 PM, Gary Aitken wrote: > <snip> > >> From fstab: > >> /dev/ufs/hd250G1root / ufs rw,noatime 1 1 > >> /dev/ufs/hd250G1var /var ufs rw,noatime 2 2 > >> /dev/ufs/hd250G1usr /usr ufs rw,noatime 7 3 > >> tmpfs /tmp tmpfs rw,mode=01777 0 0 > >> md99 none swap sw,file=/usr/swap/swap,late 0 0 > >> /var is 16G > >> > >> It seems like it may be corrupted disk data, but I'm wondering if > >> there's a good way to diagnose that. > > > > fsck(8) > > duh, thanks. > That did solve the problem. > > However, I'm confused. > Upon reboot, the system checks to see if file systems were properly > dismounted and is supposed to do an fsck. Since those don't show up > in messages, I can't verify this, but I'm pretty certain it must have > thought it was clean, which it wasn't. (One reason I'm pretty certain > is the time involved when run manually as you suggested). This is the primary reason for setting background_fsck="NO" in /etc/rc.conf - if you can afford a little downtime. The background fsck doesn't have all the repair capabilities a forced foreground check has, to it _might_ leave the file system in an inconsistent state, and the system runs with that unclean partition. > The file system in question was mounted below "/". > Does the system only auto-check file systems mounted at "/"? Yes, / is the first file system it checks. The two last fields in /etc/fstab control what fsck will check, and /etc/rc.conf allows additional flags for those automatic checks. -- Polytropon Magdeburg, Germany Happy FreeBSD user since 4.0 Andra moi ennepe, Mousa, ...
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