Messages in this thread | | | Date | Sat, 10 Jul 2010 12:58:09 +0300 | Subject | Re: ata: failed to IDENTIFY / SRST failed (errno = -16) problems on/after booting 2.6.35-rc3 | From | Török Edvin <> |
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2010/7/6 Robert Hancock <hancockrwd@gmail.com>: >> 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
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