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SubjectRe: Major SATA / EXT3 Issue?
Chris Holvenstot wrote:
> I am curious if anyone else has had major problems with SATA drives on
> the current series of kernels. I have (or rather had) two SATA drives
> on my system - the first was a Maxtor MaxLine 500 and the second was a
> Maxtor MaxLine 250.
>
> Both of these drives were plugged to the 1.5 Gigabyte / second mode.
>
> My SATA controller is integrated on my MSI motherboard and sports four
> ports. It is implemented using the Nvidia CK804 chipset. My processor
> is an AMD64 X2 4600+ running the 32 bit version of Linux.
>
> I have had these drives up and running for about six months.
>
> The first drive "failed" about 10 days ago - and unfortunately I focused
> on hardware error and after several attempts to get the drive back
> online I physically pulled it from the system. This drive was used for
> backups and thus was not critical to day-to-day operations.
>
> However, tonight I "lost" a second SATA drive, this one I use on a daily
> basis for my kernel build and test processes. It failed in the same
> manner as the first, which makes me a little suspicious.
>
>
> The first drive “failed” while I was running a modified Ubuntu 7.04
> system. Because I focused on hardware as the reason for the failure I
> did not collect specific information about the version of the kernel
> being used, but it was likely to be 2.6.24-git8.
>
>
> The second drive “failed” tonight on what is, except for the kernel, a
> fairly standard Ubuntu 7.10 system (the same hardware - I upgraded my OS
> this past week) – the kernel in use tonight at the time of the second
> failure was 2.6.24-rc1-git1
>
>
> In each case the failure mode appears to have been the same – the system
> appears to lock up. When rebooted I get a long string of messages like:
>
>
> Oct 26 20:07:37 localhost kernel: [ 101.581091] ata2: timeout waiting
> for ADMA IDLE, stat=0x440
>
> Oct 26 20:07:37 localhost kernel: [ 101.581096] sd 1:0:0:0: [sda] Write
> Protect is off
>
> Oct 26 20:07:37 localhost kernel: [ 101.581174] res
> 71/04:08:00:00:00/04:00:1d:00:00/e0 Emask 0x1 (device error)
>
> Oct 26 20:07:37 localhost kernel: [ 101.644992] ata2.00: configured for
> UDMA/33
>
> Oct 26 20:07:37 localhost kernel: [ 101.644994] ata2: EH complete
>
> Oct 26 20:07:37 localhost kernel: [ 101.645006] sd 1:0:0:0: [sda] Write
> cache: disabled, read cache: enabled, doesn't support DPO or FUA

You should try and get some output from dmesg and not from the messages
log, as the log daemon seems to have a nasty habit of discarding
critical output from these errors. In this case the failing command is
missing and the message ordering even seems off.

>
>
> The hardware appears to be correctly identified by the BIOS during the
> power up sequence.
>
>
> Not much is seen in the dmesg log excpet for:
>
>
> [ 43.649673] scsi0 : sata_nv
>
> [ 43.649722] scsi1 : sata_nv
>
> [ 43.649776] ata1: SATA max UDMA/133 cmd 0x9f0 ctl 0xbf0 bmdma 0xcc00
> irq 19
>
> [ 43.649778] ata2: SATA max UDMA/133 cmd 0x970 ctl 0xb70 bmdma 0xcc08
> irq 19

There should be more than this at the very least.. As above, please try
to get output from dmesg itself.

>
>
> When I try to run a file system check on these devices I get:
>
>
>
>
> e2fsck 1.40.2 (12-Jul-2007)
>
> fsck.ext2: No such file or directory while trying to open /dev/sdb1
>
> The superblock could not be read or does not describe a correct ext2
>
> filesystem. If the device is valid and it really contains an ext2
>
> filesystem (and not swap or ufs or something else), then the superblock
>
> is corrupt, and you might try running e2fsck with an alternate
> superblock:
>
> e2fsck -b 8193 <device>
>
>
> I have a gut feeling that when the system appears to lock up what is
> really going on is that the contents of the drive are being trashed. But
> I have no proof of that.

I don't think that is the case, more like the drives have not been
detected at all. If this happens after a reboot when they were working
before, that sounds like some kind of a hardware issue most likely..

>
>
> When I try to do a parted to see what the system thinks is on the drive
> I get the error message:
>
>
> Error: Error opening /dev/sdb: No medium found
>
>
> I am not having any problems with my EXT3 file systems located on
> “standard” IDE / PATA drives.
>
>
> My config file, which has not changed in months beyond taking the
> defaults during make oldconfig looks like:

--
Robert Hancock Saskatoon, SK, Canada
To email, remove "nospam" from hancockr@nospamshaw.ca
Home Page: http://www.roberthancock.com/

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