Date: 22 Nov 2003 10:39:51 -0500 From: Lowell Gilbert <freebsd-questions-local@be-well.ilk.org> To: Bert Lagaisse <bert.lagaisse@cs.kuleuven.ac.be> Cc: freebsd-questions@freebsd.org Subject: Re: DMA issue caused crash and file system inconsistency Message-ID: <44r800cszc.fsf@be-well.ilk.org> In-Reply-To: <3FBE13FC.6020606@cs.kuleuven.ac.be> References: <3FBE13FC.6020606@cs.kuleuven.ac.be>
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Bert Lagaisse <bert.lagaisse@cs.kuleuven.ac.be> writes: > I did some stupid newbie things: > > I have 2 cdroms, a plextor 8/4/32A and a 50x aopen cdrom. > > I added the line hw.ata.atapi_dma="1" to loader.conf > The plextor now uses WDMA2 > The aopen cdrom still uses PIO4 (dma worked under wintendo 2000) > > After I tried to enable DMA (using atacontrol) on my aopen cdrom and > mounted it, the system crashed (freebsd 4.9-RELEASE) > > result : > > During the reboot i got an error and had to run "fsck" > > I did, and answered yes to all the questions. (kinda stupid, I know) > > The system booted but startx couldn't find /var/log/XFree86.0.log > It seems that /var/log was completely removed > > mkdir log in /var solved the problem > > What else can I expect after a file system inconsistency ? A bunch of files are missing, too. Certainly the log files themselves (many of which will not be created if they don't exist), possibly others. > And how do I solve the cdrom DMA problem ? Do you need to?
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