Messages in this thread |  | | Subject | Re: Possible critical VIA vt82c686a chip bug | From | Yoann Vandoorselaere <> | Date | 26 Oct 2000 16:13:51 +0200 |
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Vojtech Pavlik <vojtech@suse.cz> writes:
> On Thu, Oct 26, 2000 at 03:58:21PM +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 00: 06 11 86 06 87 00 10 02 22 00 01 06 00 00 80 00 10: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 20: 00 00 00 00 00 00 00 00 00 00 00 00 06 11 00 00 30: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 40: 08 01 00 00 00 80 60 e6 05 01 c4 00 00 00 00 f3 50: 02 76 34 00 00 50 ab 90 00 06 f7 08 00 00 00 00 60: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 70: 00 00 00 00 05 3e 00 02 00 00 f0 40 00 00 00 00 80: 00 00 00 00 00 1d 00 00 00 00 00 02 00 00 00 00 90: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 a0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 c0: 01 00 02 00 00 00 00 00 00 00 00 00 00 00 00 00 d0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 f0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00:07.4 Host bridge: VIA Technologies, Inc. VT82C686 [Apollo Super ACPI] (rev 30) 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- Capabilities: [68] Power Management version 2 Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-) Status: D0 PME-Enable- DSel=0 DScale=0 PME- 00: 06 11 57 30 00 00 90 02 30 00 00 06 00 00 00 00 10: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 20: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 30: 00 00 00 00 68 00 00 00 00 00 00 00 00 00 00 00 40: 20 84 50 00 ba 70 00 00 01 40 00 00 00 00 00 00 50: 00 ff ff 88 54 00 00 00 00 ff ff 00 00 00 00 00 60: 00 00 00 00 00 00 00 00 01 00 02 00 00 00 00 00 70: 01 60 00 00 01 00 00 00 00 00 00 00 00 00 00 00 80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 90: 01 50 00 00 00 00 00 00 00 00 00 00 00 00 00 00 a0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 c0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 d0: 00 00 01 00 00 00 00 00 00 00 00 00 00 00 00 00 e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 f0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
-- -- Yoann http://www.mandrakesoft.com/~yoann/ "Programming is a race between programmers, who try and make more and more idiot-proof software, and universe, which produces more and more remarkable idiots. Until now, universe leads the race" -- R. Cook - 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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