Messages in this thread |  | | Date | Thu, 26 Oct 2000 16:11:47 +0200 | From | Vojtech Pavlik <> | Subject | Re: Possible critical VIA vt82c686a chip bug |
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On Thu, Oct 26, 2000 at 04:13:51PM +0200, Yoann Vandoorselaere wrote:
> > > > I've found a bug in my VIA SuperSouth (vt82c686a) chip (ISA bridge > > > > revision 0x12, silicon rev CD) on my FIC VA-503A rev 1.2: > > > > > > > > When there is heavy disk activity (several tars running concurrently on > > > > UDMA66 drive, or tar'ing from one UDMA66 drive to another over two > > > > channels), the system time, namely gettimeofday() goes crazy - now and > > > > then it advances the time about 1:20 for a fraction of a second and then > > > > changes back to normal time. > > > > > > > > This causes X to blank the screen when it should not, > > > > > > Really strange, I'm getting exactly the same problem on a machine > > > with the same chipset... > > > > Could you send me your 'lspci -vvxxx' to confirm it's the very same > > chip? > > 00:07.0 ISA bridge: VIA Technologies, Inc. VT82C686 [Apollo Super South] (rev 22) > Subsystem: VIA Technologies, Inc. VT82C686/A PCI to ISA Bridge > Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping+ SERR- FastB2B- > Status: Cap+ 66Mhz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- > Latency: 0
Oh, this is a newer revision than mine (silicon CF or CG) - I'd expect that one not to have the problem ... well, it seems it's more widespread than I expected.
-- Vojtech Pavlik SuSE Labs - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org Please read the FAQ at http://www.tux.org/lkml/
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