Messages in this thread | | | From | Leigh Orf <> | Subject | Re: ide-scsi + /dev/dsp == solid lockup | Date | Sun, 15 Oct 2000 01:31:31 -0400 |
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I hesitate to declare victory just yet, but I think my problem is solved (over a half hour of testing and no lockup). In reading the pdf docs on the motherboard, by chance I found the word "concurrency" here:
Passive Release (Enabled)
This is a mechanism that allows concurrency of ISA/EISA cycles and CPU-to-PCI cycles. When this feature is enabled, the TXC will be possible to re-arbitrate the PCI bus and allow the CPU to access PCI even when the PCEB has been granted the bus.
My soundcard is an ISA device. I disabled this setting in the bios. Here is a diff on the lspci output before & after the bios reset. Note this is the ISA bridge that had a bit tweaked, not the host bridge.
before:
00:01.0 ISA bridge: Intel Corporation 82371AB PIIX4 ISA (rev 01) 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: 86 80 10 71 0f 00 80 02 01 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 00 00 00 00 30: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 40: 00 00 00 00 00 00 00 00 00 00 00 00 09 00 23 00 50: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 60: 0b 0a 80 09 10 00 00 00 00 f2 00 00 00 00 00 00 70: 00 00 00 00 00 00 0c 0c 00 00 00 00 00 00 00 00 80: 00 00 02 00 00 00 00 00 00 00 00 00 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: 01 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 21 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 28 0f 00 00 00 00 00 00
after:
80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ^^
So if anyone else asks, you know which bits to flip ;)
I'll post later if this *doesn't* solve my problem (it's 1:30 AM now ugh) otherwise consider me a happy camper. And regardless, thanks much to Alan and Frank for their help. Talk about customer support!
Leigh - 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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