DMA issue caused crash and file system inconsistency
bert.lagaisse at cs.kuleuven.ac.be
Fri Nov 21 05:28:48 PST 2003
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)
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 ?
And how do I solve the cdrom DMA problem ?
K.U.Leuven, Dept. computer science
Email: bert.lagaisse at cs.kuleuven.ac.be
Tel: +32 16 32 78 24
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