I/O error appearing in dmesg...any idea what this means?

[Entity]

I just compiled and started running 2.5.44, just for the hell of it, in RH8. Anyway, after doing so, I started noticing that when I run Xwindows, a ton of these messages show up in my dmesg logs:

kernel: end_request: I/O error, dev 16:00, sector 0

I'm not really sure what those messages are; they don't have anything to do with the HD, I don't think, because I ran fsck on everything and it turned out ok. The only other clue I have is that when I search for "I/O" in my /var/log directory, this result comes up:

XFree86.0.log--) PCI:*(1:0:0) ATI Radeon 7500 QW rev 0, Mem @ 0xd0000000/27, 0xdfef0000/16, I/O @ 0xb800/8, BIOS @ 0xdfec0000/17

I can't see anything that necessarily matches the dev 16, sector 0 part, but I'm wondering if anyone knows what this message means, if I should worry, and how to get rid of it?

anyway, thanks...

Rob

 

[earthman]

Maybe just a dead end probe. I wouldn't worry about it if everything seems to be working fine.

 

[Kell]

According to my /usr/src/linux/Documentation/devices.txt file, 16:00 refers to either a Genius 4500 handheld scanner (character device) or a GoldStar CD-ROM (block device). I would guess sector errors come from the GoldStar CD-ROM, but I doubt many people have one of those...

It could also be just a f(r,3,w,t) message that just means the kernel's less than perfect. Whatever it turns out to be, post the message to linux-kernel@vger.kernel.org, so the kernel developers at least know about this and can maybe do something about it.

 

[Entity]

I had an LG 52x CDRom in there, so I replaced it, thinking that might be it. Now (with 2.5.46) the error is slightly different:

end_request: I/O error, dev hdc, sector 0

dev hdc is now a Lite-On 16x DVD drive. Often this error is followed by:

cdrom: This disc doesn't have any tracks I recognize!

When I have CD properties (in RH8) set to auto-run, this causes gnome-cd to crash consistently, so I've turned that off. Any ideas what might be up?

Rob

 

[n0cmonkey]

Originally posted by: Entity
Any ideas what might be up?

You are using a development kernel.

 

[Entity]

Originally posted by: n0cmonkey

Originally posted by: Entity
Any ideas what might be up?

You are using a development kernel.

Yeah, I didn't notice anything when reading the kernel mailing list, though. Just wondering.

Rob