Bug 5722

Summary:	Buffer I/O error on device sr0, logical block 1
Product:	IO/Storage	Reporter:	Nicolas Mailhot (Nicolas.Mailhot)
Component:	Serial ATA	Assignee:	Jeff Garzik (jgarzik)
Status:	REJECTED INVALID
Severity:	normal	CC:	bunk, trulli
Priority:	P2
Hardware:	i386
OS:	Linux
Kernel Version:	2.6.14-1.1750_FC5 (2.6.15-rc5-git1)	Subsystem:
Regression:	---	Bisected commit-id:
Attachments:	dmesg command output lspci -vv output grep -i sda /var/log/messages*

Description Nicolas Mailhot 2005-12-11 03:22:17 UTC

Most recent kernel where this bug did not occur:

This was working very recently, maybe a week ago (rawhide kernels which follow
mainline closely)


Distribution:
Fedora Core Devel


Hardware Environment:
PLEXTOR   Model: DVDR   PX-716A    Rev: 1.09 on nVidia Corporation CK804 Serial
ATA Controller


Problem Description:
Accesses to the DVD drive are failing this week (worked fine with the same disk
a week ago) and dmesg shows :

end_request: I/O error, dev sr0, sector 0
Buffer I/O error on device sr0, logical block 0
end_request: I/O error, dev sr0, sector 8
Buffer I/O error on device sr0, logical block 1
Buffer I/O error on device sr0, logical block 2
Buffer I/O error on device sr0, logical block 3
Buffer I/O error on device sr0, logical block 4
Buffer I/O error on device sr0, logical block 5
Buffer I/O error on device sr0, logical block 6
Buffer I/O error on device sr0, logical block 7

Comment 1 Nicolas Mailhot 2005-12-11 03:24:16 UTC

Created attachment 6794 [details]
dmesg command output

Comment 2 Nicolas Mailhot 2005-12-11 03:24:43 UTC

Created attachment 6795 [details]
lspci -vv output

Comment 3 Adrian Bunk 2005-12-18 17:46:08 UTC

Please confirm whether
- it still works in 2.6.14.4 and
- it is still broken in 2.6.15-rc6.

Comment 4 Nicolas Mailhot 2005-12-29 10:00:13 UTC

Thank you very much for looking into this. I'm sorry I couldn't follow up on
this quickly - Christmas time you know.

I'll try to re-test with an earlier kernel and the latest Raw Hide kernel by jan
2nd. I've realized since the report the test disk is one of the new drm-ed
silver disks, so maybe something changed which makes the "protection" effective
when it wasn't before.

Or maybe the problem is in the userspace updates that happened in Rawhide at
about the same time.

Anyway, re-testing with an older kernel should show whether it's an userspace
(udev ?) or kernel problem.

Happy New Year!

Comment 5 Jarno 2006-04-30 05:03:59 UTC

Created attachment 7997 [details]
grep -i sda /var/log/messages*

Kernel Version	2.6.15-1.1833_FC4
Distro Name	Fedora Core release 4 (Stentz)

Comment 6 Martin J. Bligh 2006-05-03 07:38:08 UTC

Please file fedora bugs in their own bugzilla, or reproduce on mainline