https://bugzilla.novell.com/show_bug.cgi?id=177050 VladCodrea@mail.utexas.edu changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEEDINFO |NEW Info Provider|VladCodrea@mail.utexas.edu | ------- Comment #21 from VladCodrea@mail.utexas.edu 2007-01-11 12:43 MST ------- Created an attachment (id=112538) --> (https://bugzilla.novell.com/attachment.cgi?id=112538&action=view) DMA enabled in CD Properties Control Panel of Windows 98 I verified file integrity the following way: 1) I inserted a pressed Kubuntu CD while the laptop was booted in Windows 98. 2) I made the D: (CD/DVD) drive shareable in Windows 98 and copied it entirely to a Linux computer via SAMBA. 3) On the Linux computer, I ran "md5sum -c md5sum.txt" in the copied folder and all files were found to be OK. To determine whether Windows 98 was using DMA, I went to Control Panel -> System Properties -> Device Manager -> CDROM -> TORiSAN DVD-ROM DRDN216 -> Properties -> Settings. The DMA checkbox is selected, as shown in the attached screenshot. The CPU usage of Windows 98 while the CD was being copied averaged at 30%, and the baseline when the computer was idle was 5%. To see whether turning off mwdma2 in Linux helps, I booted the laptop into OpenSuse 10.2 and ran 'hdparm -d0 /dev/hdc'. Next I inserted the Kubuntu CD, and saw that it was mounted as "/media/Kubuntu 6.06 amd64". I then attempted to copy the entire contents of "/media/Kubuntu 6.06 amd64" onto the hard drive. The first couple of files (autorun.inf, rssfeeds.rdf, aggreg8.jar, and chrome.rdf) were copied, after which the CD stopped spinning and laptop started being extremely sluggish. The last lines in dmesg were: hdc: DMA disabled ISO 9660 Extensions: Microsoft Joliet Level 3 ISO 9660 Extensions: RRIP_1991A spurious 8259A interrupt: IRQ7. Thank you for your help. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug, or are watching someone who is.