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Hello! Maybe this is a question to stupid for this list, but I asked for it in de.comp.os.unix.linux.hardware <bt8tln$4htn0$1@ID-213387.news.uni-berlin.de> and on the Debian user mailing list, and although many people tried, nobody could help me. I have a server with a National Semiconductor CS5530 southbridge (http://www.national.com/pf/CS/CS5530.html) and after booting it only worked in MDMA2. I tried to force it with hdparm -d1X66 but that caused only nasty messages on syslog, like: *********************************************************************** Jan 5 16:46:14 server kernel: hda: timeout waiting for DMA Jan 5 16:46:14 server kernel: ide_dmaproc: chipset supported ide_dma_timeout fu nc only: 14 Jan 5 16:46:14 server kernel: hda: status error: status=0x58 { DriveReady SeekC omplete DataRequest } Jan 5 16:46:14 server kernel: hda: drive not ready for command ********************************************************************** I tried this with the Debian kernel images 2.4.18-bf2.4 and 2.2.20-idepci and with several disks, all the same. I would have given up hope already, if I had not found out that the S.u.S.E. 7.3 kernel 2.4.10-4GB has no problem with this chipset at all. While booting, the kernel says: hda WDC[...] ide0 at 0x[...] on irq14 hda: cs5530_set_xfer_mode(UDMA2) And everything works as fast as I want. My questions: 1) What's the differences in the kernels to cause this behavior? 2) How do I get my Debian kernel to behave alike? Any help GREATLY appreciated, Kevin -- http://www.boergens.de - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/ | ||||||||||||
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