2001-10-25 08:49:54

by Jim Hull

[permalink] [raw]
Subject: dvd and filesystem errors under 2.4.13

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Hello,

After installing 2.4.13 this afternoon i decided to watch a dvd,
intersting enough the dvd kept freezing, to be sure it wasn't the player,
i raw copied the vob files from the mounted dvd and I saw the same
occurance. My wife's machine and my laptop both are currently running 2.4.9 and
use the same dvd player and were not having any problem, so for shits and
giggles i downgraded this machine to 2.4.9 and the error has disappeared.
Also over the past few days (between 2.4.11 - 2.4.13) I have noticed an
increase in filesystem errors and drive errors on my scsi drives as notes:

Oct 25 01:25:58 rosebud kernel: EXT2-fs error (device sd(8,1)):
ext2_free_blocks: bit already cleared for block 133384
Oct 25 01:25:58 rosebud kernel: EXT2-fs error (device sd(8,1)):
ext2_free_blocks: bit already cleared for block 133385


The hardware is as follows ....

scsi devices with filesystem errors:

scsi0 : Adaptec AIC7XXX EISA/VLB/PCI SCSI HBA DRIVER, Rev 6.2.1
<Adaptec aic7890/91 Ultra2 SCSI adapter>
aic7890/91: Ultra2 Wide Channel A, SCSI Id=7, 32/255 SCBs

(scsi0:A:0): 80.000MB/s transfers (40.000MHz, offset 15, 16bit)
Vendor: SEAGATE Model: ST39103LW Rev: 0002
Type: Direct-Access ANSI SCSI revision: 02

dvd device:
hdc: SAMSUNG DVD-ROM SD-604, ATAPI CD/DVD-ROM drive

I think that should cover it and hopefuly I have provided enough
information to possibly debug the problem ?


============================
They that give up essential liberty to obtain a little temporary
safety deserve neither liberty nor safety.

- --Benjamin Franklin,
Historical Review of Pennyslvania, 1759


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2001-10-25 12:03:16

by Alan

[permalink] [raw]
Subject: Re: dvd and filesystem errors under 2.4.13

> Oct 25 01:25:58 rosebud kernel: EXT2-fs error (device sd(8,1)):
> ext2_free_blocks: bit already cleared for block 133384
> Oct 25 01:25:58 rosebud kernel: EXT2-fs error (device sd(8,1)):
> ext2_free_blocks: bit already cleared for block 133385

Thats indicating memory on on disk corruption. It is something you should
be concerned about. What version of aic7xxx is on the kernel that is
stable ?

2001-10-25 12:59:23

by christophe barbé

[permalink] [raw]
Subject: Re: dvd and filesystem errors under 2.4.13

>> scsi0 : Adaptec AIC7XXX EISA/VLB/PCI SCSI HBA DRIVER, Rev 6.2.1

Rev 6.2.1 from its mail.

I personnaly use rev 6.2.4 with the 2.4.13.

The patch for 2.4.12 apply fine.
linux-aic7xxx-6.2.4-2.4.12.patch.gz

Christophe

PS: This rev (.4) include the pci table export for the hotplug stuff. I
hope this will be upgraded in the next stable kernel.

le jeu 25-10-2001 at 14:09 Alan Cox a ?crit :
> > Oct 25 01:25:58 rosebud kernel: EXT2-fs error (device sd(8,1)):
> > ext2_free_blocks: bit already cleared for block 133384
> > Oct 25 01:25:58 rosebud kernel: EXT2-fs error (device sd(8,1)):
> > ext2_free_blocks: bit already cleared for block 133385
>
> Thats indicating memory on on disk corruption. It is something you should
> be concerned about. What version of aic7xxx is on the kernel that is
> stable ?
> -
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2001-10-25 16:08:50

by Jim Hull

[permalink] [raw]
Subject: Re: dvd and filesystem errors under 2.4.13

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Rev 6.2.1

Are you saying this is possibly a hardware issue ?

============================
They that give up essential liberty to obtain a little temporary
safety deserve neither liberty nor safety.

- --Benjamin Franklin,
Historical Review of Pennyslvania, 1759



On Thu, 25 Oct 2001, Alan Cox wrote:

> Oct 25 01:25:58 rosebud kernel: EXT2-fs error (device sd(8,1)):
> ext2_free_blocks: bit already cleared for block 133384
> Oct 25 01:25:58 rosebud kernel: EXT2-fs error (device sd(8,1)):
> ext2_free_blocks: bit already cleared for block 133385

Thats indicating memory on on disk corruption. It is something you should
be concerned about. What version of aic7xxx is on the kernel that is
stable ?
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2001-10-25 16:32:54

by Alan

[permalink] [raw]
Subject: Re: dvd and filesystem errors under 2.4.13

> Are you saying this is possibly a hardware issue ?

Could be a cabling or RAM issue,could also be a driver bug of some
kind

2001-10-25 16:50:54

by Jim Hull

[permalink] [raw]
Subject: Re: dvd and filesystem errors under 2.4.13

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ok, well I just noticed I have been recieving "hdc: lost interupt" in
dmesg when trying to read from the dvd (in both kernel versions). Although
play is smoother in 2.4.9, its still hosing. Maybe the scsi issue and the
dvd issue relate to a crappy or soon to be crappy pci bus ?




Jim


============================
They that give up essential liberty to obtain a little temporary
safety deserve neither liberty nor safety.

- --Benjamin Franklin,
Historical Review of Pennyslvania, 1759



On Thu, 25 Oct 2001, Alan Cox wrote:

> Are you saying this is possibly a hardware issue ?

Could be a cabling or RAM issue,could also be a driver bug of some
kind
-

2001-10-26 09:39:11

by Vojtech Pavlik

[permalink] [raw]
Subject: Re: dvd and filesystem errors under 2.4.13

On Thu, Oct 25, 2001 at 05:35:12PM +0100, Alan Cox wrote:
> > Are you saying this is possibly a hardware issue ?
>
> Could be a cabling or RAM issue,could also be a driver bug of some

Hmm, I've now received three reports of data corruption in 2.4.13, on
various VIA chipsets, only when using DMA. I wonder what went amiss
again ...

--
Vojtech Pavlik
SuSE Labs