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> For some funny reason, a 2.4.20 kernel refuses to set the DMA-level on > the new disks (all connected to a UDMA5-capable Ultra100 TX2 controller) > to UDMA5,4,3 and settles it for UDMA2, which is the highest possibility > for the OLD onboard-controller (but NOT for the promise card). You need to boot 2.4.19 and 2.4.20 with 'ideX=ata66' where X is the number of the channel where you wish to use transfer modes above UDMA2. For instance, "ide0=ata66 ide1=ata66" will do the trick for the first two channels. This is a well-known bug in the PDC driver that has never been fixed. And don't worry, 2.4.21 will most likely feature a PDC driver that won't work at all (read Andre Hedrick's posts from last week), but if you say 2.5.52 mostly works then you might be lucky as 2.5 IDE is basically the same codebase as 2.4.21-pre. > The errors was (2.4.20): > > <DATE> webber kernel: hdg: dma_intr: status=0x51 > <DATE> webber kernel: hdg: end_request: I/O error, dev 22:00 (hdg) > sector 58033224 > <DATE> webber kernel: hdg: dma_intr: status=0x51 > <DATE> webber kernel: hdg: dma_intr: error=0x40 LBAsect=58033238, > sector=58033232 > <DATE> webber kernel: end_request: I/O error, dev 22:00 (hdg), sector > 58033232 Hmmm, I can't help you with these. -- Tomas Szepe <szepe@pinerecords.com> - 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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