Messages in this thread | | | From | <> | Subject | 'vintage' via dma bug | Date | Tue, 18 Jul 2006 20:36:00 +0200 |
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I have the misfortune to run a rather old PIII machine with a VIA chipset, a Fedora Core 1 distro with 2.4.22 kernel and two PATA hard mirrored hard disk, on two separate channels, both set to primary. I've experienced some data corruption lately and after much googling I've found that 4-5 years ago some via chipset experienced a similar problem with dma transfers, especially with hard disk configured the very same way as my setup. The bug was fixed, I gather, in 2.4.4. I've upgrade the kernel to 2.6.10 (the latest Fedora legacy core *TWO* kernel, with fingers crossed) but the corruption problems usually start to pop up only after a few weeks of uptime, especially under relatively heavy load. I couldn't find more precise pointers after all these years so I'd like to know if that bug really affected my chipset, and if 2.6.10 is a valid solution..
the kernel identifies the chipset at boot:
# dmesg | fgrep -i via ACPI: DSDT (v001 VIA APOLLO-P 0x00001000 MSFT 0x0100000b) @ 0x00000000 PCI: Via IRQ fixup agpgart: Detected VIA Apollo Pro 133 chipset VP_IDE: VIA vt82c686a (rev 22) IDE UDMA66 controller on pci0000:00:07.1 parport_pc: VIA 686A/8231 detected parport_pc: VIA parallel port: io=0x378, irq=7
# lspci 00:00.0 Host bridge: VIA Technologies, Inc. VT82C693A/694x [Apollo PRO133x] (rev c4) 00:01.0 PCI bridge: VIA Technologies, Inc. VT82C598/694x [Apollo MVP3/Pro133x AG P] 00:07.0 ISA bridge: VIA Technologies, Inc. VT82C686 [Apollo Super South] (rev 22 ) 00:07.1 IDE interface: VIA Technologies, Inc. VT82C586A/B/VT82C686/A/B/VT823x/A/ C/VT8235 PIPC Bus Master IDE (rev 10) 00:07.2 USB Controller: VIA Technologies, Inc. VT6202 [USB 2.0 controller] (rev 10) 00:07.3 USB Controller: VIA Technologies, Inc. VT6202 [USB 2.0 controller] (rev 10) 00:07.4 SMBus: VIA Technologies, Inc. VT82C686 [Apollo Super ACPI] (rev 30) 00:0e.0 Ethernet controller: Intel Corp. 82557/8/9 [Ethernet Pro 100] (rev 08) 00:0f.0 Ethernet controller: Intel Corp. 82557/8/9 [Ethernet Pro 100] (rev 08) 01:00.0 VGA compatible controller: ATI Technologies Inc Rage XL AGP 2X (rev 27)
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