Messages in this thread |  | | Date | Fri, 9 Feb 2001 22:18:05 +0100 (CET) | From | Henryk Paluch <> | Subject | [RESOLVED]: kernel hangs on CD-R HP8100i if compiled w/ VIA IDE |
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Hi folks!
Shortly: kernel (2.2.x, 2.4.x) hangs on CD-R HP8100i, VIA KT133 chipset (w/ ATA100 support) if kernel is compiled with VIA IDE chipset support. Please, see my previous post from 21 Jan 2001 for full description.
After little tweaking via82cxxx.c driver I found, that the cause is 'Prefetch Buffer: ' (/proc/ide/via) - if disabled for appropriate IDE channel, everything works well. It also explains, why the kernel works properly if VIA IDE support is not compiled in - BIOS leaves Prefetch disabled (I hacked that driver a bit more to show chipset configuration either before and after modification).
So I have a little question: What could be a clean way, to make a kernel option to disable prefetch for VIA (use something like 'ide1=noprefetch'?) Any idea?
Sincerely Henryk Paluch, paluch@kmlinux.fjfi.cvut.cz
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