Gentoo Archives: gentoo-user

From: Maurice Volaski <mvolaski@××××××××.edu>
To: drbd-user@××××××.com
Cc: linux-lvm@××××××.com, linux-kernel@×××××××××××.org, gentoo-user@l.g.o
Subject: [gentoo-user] Re: Spontaneous access to the CDROM on two computers simultaneously
Date: Sat, 17 Jun 2006 18:35:54
Message-Id: a06230962c0b9f4072b54@[129.98.90.227]
1 It happened again, but this time on just one of the two computers:
2
3 [20770.844282] hda: tray open
4 [20770.844288] end_request: I/O error, dev hda, sector 0
5 [20770.844292] Buffer I/O error on device hda, logical block 0
6
7 Since you think LVM may be misbehaving, I changed the filter on the
8 affected computer to read
9
10 filter = [ "r|/dev/cdrom|", "r|/dev/hda|", "r|/dev/ide|" ]
11
12 Ironically, that's on the computer that threw the error, so it could
13 be more evidence LVM has a problem if it is indeed the cause or
14 further evidence that it isn't involved.
15
16 The kernel on this amd64-based computer is now 2.6.16.20. LVM is
17 version 2.02.05 (versions from Gentoo packages). Device mapper is
18 1.02.07 and udev is 090.) Since I'm shooting in the dark, cc'd to the
19 gentoo ml since this system is gentoo-based (2005.0 profile).
20
21
22 >/ 2006-06-12 01:06:30 -0400
23 >\ Maurice Volaski:
24 >> Spontaneously and for no apparent reason, two computers displayed
25 >>the following message in their logs several times at the same time:
26 >>
27 > > [55419.446442] Buffer I/O error on device hda, logical block 0
28 > > [55419.447381] hda: command error: status=0x51 { DriveReady
29 >SeekComplete Error }
30 >> [55419.447386] hda: command error: error=0x54 { AbortedCommand
31 >>LastFailedSense=0x05 }
32 >> [55419.447389] ide: failed opcode was: unknown
33 >> [55419.447391] end_request: I/O error, dev hda, sector 0
34 >>
35 >...
36 >> drbd could at least theoretically triggered this somehow.
37 >no.
38 >
39 >much more likely some program scanning ("discovering") devices.
40 >
41 >just a wild guess:
42 >man lvm.conf
43 >/filter
44
45 --
46
47 Maurice Volaski, mvolaski@××××××××.edu
48 Computing Support, Rose F. Kennedy Center
49 Albert Einstein College of Medicine of Yeshiva University
50 --
51 gentoo-user@g.o mailing list