Messages in this thread |  | | Subject | Re: reason for VIA performance drop since 2.4.2-ac21 | Date | Wed, 2 May 2001 12:11:10 +0100 (BST) | From | Alan Cox <> |
| |
> It has nothing to do with mtrr or K6. In file arch/i386/kernel/pci-pc.c there > is a pci_fixup_via691_2 function. It appeared in 2.4.2-ac21. And it works for > my chipset - VIA_82C598. When I put "return" in body of this function, > recompile and start kernel 2.4.4 - "x11perf -putimage100" shows that video > works fast again.
My log says that this was a change pulled in from Linus tree. I don't know who put it there or why
> 1) this is just a debug code, and kernels >2.4.2-ac20 shouldn't be used by VIA > MVP3 owners > 2) this code fix crash possibility, and all kernels without it (including > 2.2.19) are buggy with VIA MVP3
Im not aware of any write posting bugs on the MVP3 but I dont follow the chipset in detail.
- 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/
|  |