2010/7/6 Robert Hancock <hancockrwd@xxxxxxxxx>: >> Also I noticed that the BIOS sometimes hanged during boot (probably >> trying to establish a link to the CDROM too), resetting it a couple of >> times allowed it to reach Linux, but then Linux hanged. >> It could be a hardware failure of the CDROM that just happened to occur >> after I installed 2.6.35-rc3, I don't know. > > It does sound like a hardware problem, yes, from those symptoms. So from the 2 CDROM drives this one works: ata9.00: ATAPI: ASUS CRW-5232AS, 1.01, max UDMA/33 If I plug in just the other CDROM drive (on same cable/power connector, and unplug the working CDROM) then it hangs in the BIOS "Detecting IDE drives....". Looks like faulty hardware. If I have both CDROMs plugged in (on same data cable, order doesn't seem to matter) then it hangs in the BIOS for a while. It eventually boots Linux, at which point I get those SRST failed messages, and at some point it brings up the link to both CDROMs (after 76 seconds for example): ata9.00: ATAPI: ASUS CRW-5232AS, 1.0.1, max UDMA/33 ata9.01: ATAPI: SAMSUNG CD-ROM SH-152A, C503, max UDMA/33 In this case load average starts to climb (2.39 already) for a while, I'll reply with more details in the other thread about that. So this is not a regression, or a bug in Linux, it is just faulty hardware and Linux retrying multiple times when it fails. Best regards, --Edwin -- To unsubscribe from this list: send the line "unsubscribe linux-ide" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html