From Bugzilla Helper: User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.0.1) Gecko/20021003 Description of problem: Several actions result in the system freezing; all of them involve the floppy drive. Ive already replaced the drive, cable, and floppies im working with. First, using dd with the floppy. The command dd if=/dev/fd0 of=./bootdisk.img bs=512 always freezes the machine. Second, trying to make a FAT16 on a floppy. The command mkdosfs -r 16 /dev/fd0 always freezes the machine. Third, letting linux probe a floppy for filesystem. The command mount /mnt/floppy freezes the system. However, the command mount -t msdos /dev/fd0 /mnt/floppy mounts the floppy just fine allowing normal use. The relavent line in /etc/fstab is /dev/fd0 /mnt/floppy auto noauto,owner,kudzu 0 0 which works fine on other linux systems. I suspect this might be a kernel problem, but I have no way to check that. If it is a hardware issue, then it is very specialised. If i mount a floppy explicitely, then there are no problems. Version-Release number of selected component (if applicable): fileutils-4.1.9-11 How reproducible: Always Steps to Reproduce: dd if=/dev/fd0 of=./blah.img bs=512 or mkdosfs -r 16 /dev/fd0 or mount /mnt/floppy Actual Results: Total system freeze. Had to hit the reset switch. Expected Results: copy the disk image or make a FAT16 filesystem on the floppy or mount a FAT12 filesystem Additional info: 4 IDE channels with 4 drives might have a bearing(i doubt it though).
What chipset system ? Is it multiprocessor ? Does floppy=nodma as a boot option help ?
Motherboard is an asus P4S8X-X, single CPU, northbridge chipset is SiS 648, southbridge is SiS 963. floppy=nodma does seem to fix it.
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