Hi, I've recently compiled a "vanilla" 2.6.21 kernel, patched with Ingo Molnar's rt-8 patch, as I was unable to compile with rt-7.
I needed it because I'm using audio applications (tests were made with FrugalWare, but I don't think it's a distro issue). Everything was allright until I changed my motherboard for an Asrock 4coreDual-Vsta (I formerly used a Nforce4 one), with VIA PT880 Ultra chipset. I've justed switched the hardware, as Linux is neat enough to boot without having to reinstall the whole OS. Since, I get tons of xruns when using RT applications, and the only solution I've found to "fix" it was to disable ACPI at boot time. Moreover, I get this message at boot time : PCI: BIOS bug: MCFG [EMAIL PROTECTED] is not E820 reserved PCI: not using MMCONFIG I've also tested this hardware setup with a UbuntoStudio kernel (2.6.19), and everything works flawlessy (no XRUNS, no kernel messages) ! So here is my question (I'd like to understand what's happening) : - is it a kernel (or patch) issue ? - is it a bad chipset support in the latest kernel versions ? - could this be related to BIOS issues only (I've tried all available versions without any change) ? - should I use special settings in the ".config" in order to avoid these problems ? I wasn't able to detect what causes these XRUNS, so if anyone has clues ... Regards skb - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
