ide: "lost interrupt" with 2.6.0

ide: "lost interrupt" with 2.6.0

[akmiller]

I am seeing "lost interrupt" during kernel init, immediately after the drive is
probed.

The system boots under 2.2.x, using the kernel supplied with the current stable
Debian release. I have not yet tried it with 2.4.x(I had to transfer 2.6.x as
split on floppies as the network device won't work with 2.2.x).

Data is copied by hand from the monitor, so accuracy not guaranteed(but I think
its correct)...

Relevant lspci line, after booting under 2.2.x...
00:1f.1 IDE interface: Intel Corp. 82820 820 (Camino 2) Chipset IDE U100 (rev
05)

We have had problems with these devices(ACS7500, a transparent IDE RAID
controller from Accusys) on other boards where the BIOS wouldn't boot them, so
they may be doing something weird with the standards. The BIOS on this board
can allow the system to boot correctly off this device.

Relevant part of the output on bootup...
hda: Accusys ACS7500 C5VL, ATA DISK drive
ide0 at 0x1f0-0x1f7, 0x3f6 on irq 14
hdc: LG CD-ROM CRD-8522B, ATAPI CD/DVD-ROM drive
ide1 at 0x170-0x177,0x376 on irq 15
hda: 234441648 sectors(120034 MB) w/2048 KiB Cache, CHS=16383/255/63
hda:<4>hda: lost interrupt
lost interrupt
lost interrupt
(continues forever)

I have tried (without success) enabling all workarounds in the kernel config,
disabling APIC(noapic on command line, this is a single P4), disconnecting the
CDROM from the secondary IDE, swapping the disk onto the secondary IDE,
disabling DMA-by-default in the kernel config, disabling DMA in the BIOS setup,
setting the PIO mode in the BIOS setup to 0, and trying the old driver on the
primary interface(which failed because the device has too many cylinders).

Has anyone else seen this sort of problem? (Sorry if this is a known issue, I
couldn't find anything that seemed to be the same in the archives). Has anyone
got an ACS7500 running under 2.6.0, or 2.4.x for any recent kernel?

If you anyone needs any more info I should be able to get it, but remember I
can't actually boot into 2.6.0 only the 2.2.x kernel.
-- 
Yours sincerely,
Andrew


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Re: ide: "lost interrupt" with 2.6.0

[Andre Hedrick]

Accusys is a stolen technology from Dupli-Disk, there are law suits
pending the last time I heard.

If it was based on the original firmware of the Dupli-Disk, it has totally
wrong state machines for executing hdparm style callers.

I know the FSM's are wrong because I fixed them for Dupli-Disk.
How they operate, I can not disclose.  But Accusys can not handle correct
settings for FSM to Taskfile.

Cheers,

Andre Hedrick
LAD Storage Consulting Group

On Mon, 29 Dec 2003 akmiller@nzol.net wrote:

> I am seeing "lost interrupt" during kernel init, immediately after the drive is
> probed.
> 
> The system boots under 2.2.x, using the kernel supplied with the current stable
> Debian release. I have not yet tried it with 2.4.x(I had to transfer 2.6.x as
> split on floppies as the network device won't work with 2.2.x).
> 
> Data is copied by hand from the monitor, so accuracy not guaranteed(but I think
> its correct)...
> 
> Relevant lspci line, after booting under 2.2.x...
> 00:1f.1 IDE interface: Intel Corp. 82820 820 (Camino 2) Chipset IDE U100 (rev
> 05)
> 
> We have had problems with these devices(ACS7500, a transparent IDE RAID
> controller from Accusys) on other boards where the BIOS wouldn't boot them, so
> they may be doing something weird with the standards. The BIOS on this board
> can allow the system to boot correctly off this device.
> 
> Relevant part of the output on bootup...
> hda: Accusys ACS7500 C5VL, ATA DISK drive
> ide0 at 0x1f0-0x1f7, 0x3f6 on irq 14
> hdc: LG CD-ROM CRD-8522B, ATAPI CD/DVD-ROM drive
> ide1 at 0x170-0x177,0x376 on irq 15
> hda: 234441648 sectors(120034 MB) w/2048 KiB Cache, CHS=16383/255/63
> hda:<4>hda: lost interrupt
> lost interrupt
> lost interrupt
> (continues forever)
> 
> I have tried (without success) enabling all workarounds in the kernel config,
> disabling APIC(noapic on command line, this is a single P4), disconnecting the
> CDROM from the secondary IDE, swapping the disk onto the secondary IDE,
> disabling DMA-by-default in the kernel config, disabling DMA in the BIOS setup,
> setting the PIO mode in the BIOS setup to 0, and trying the old driver on the
> primary interface(which failed because the device has too many cylinders).
> 
> Has anyone else seen this sort of problem? (Sorry if this is a known issue, I
> couldn't find anything that seemed to be the same in the archives). Has anyone
> got an ACS7500 running under 2.6.0, or 2.4.x for any recent kernel?
> 
> If you anyone needs any more info I should be able to get it, but remember I
> can't actually boot into 2.6.0 only the 2.2.x kernel.
> -- 
> Yours sincerely,
> Andrew
> 
> 
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Re: ide: "lost interrupt" with 2.6.0

[Mike Fedyk]

On Sun, Dec 28, 2003 at 07:37:37PM -0800, Andre Hedrick wrote:
> I know the FSM's are wrong because I fixed them for Dupli-Disk.
> How they operate, I can not disclose.  But Accusys can not handle correct
> settings for FSM to Taskfile.

Does that mean that if you use taskfile on Dupli-Disk controllers that they
will fail, and that disabling taskfile access might help (is that still an
option in 2.6?)

Re: ide: "lost interrupt" with 2.6.0

[Andre Hedrick]

Dupli-Disk requires taskfile access and will correctly operate.

Accusys is total CRAP, unless they licensed the technology proper.

Andre Hedrick
LAD Storage Consulting Group

On Sun, 28 Dec 2003, Mike Fedyk wrote:

> On Sun, Dec 28, 2003 at 07:37:37PM -0800, Andre Hedrick wrote:
> > I know the FSM's are wrong because I fixed them for Dupli-Disk.
> > How they operate, I can not disclose.  But Accusys can not handle correct
> > settings for FSM to Taskfile.
> 
> Does that mean that if you use taskfile on Dupli-Disk controllers that they
> will fail, and that disabling taskfile access might help (is that still an
> option in 2.6?)
> 

Re: ide: "lost interrupt" with 2.6.0

[Francois Romieu]

akmiller@nzol.net <akmiller@nzol.net> :
[accusys acs7500 lost interrupt]
> Has anyone else seen this sort of problem? (Sorry if this is a known issue, I

Probably but with a slightly different model:
        Model Number:       Accusys ACS7500 A2X1
        Serial Number:      A75X000881
I saw some interesting things where an ACS7500 was smart enough to pass the
announced lba48 capability of the disk whereas it could not really handle it.
Do you notice the same issue with a non-lba48 capable disk ?

--
Ueimor

Re: ide: "lost interrupt" with 2.6.0

[akmiller]

Quoting Francois Romieu <romieu@fr.zoreil.com>:

> akmiller@nzol.net <akmiller@nzol.net> :
> [accusys acs7500 lost interrupt]
> > Has anyone else seen this sort of problem? (Sorry if this is a known issue,
> I
> 
> Probably but with a slightly different model:
>         Model Number:       Accusys ACS7500 A2X1
>         Serial Number:      A75X000881
> I saw some interesting things where an ACS7500 was smart enough to pass the
> announced lba48 capability of the disk whereas it could not really handle
> it.
> Do you notice the same issue with a non-lba48 capable disk ?
I contacted the manufacturer, and they provided me with a firmware upgrade tool
and the firmware version CDVL(as opposed to C5VL). It seems they fixed the
problem with their firmware in the latest version.

I'm not sure whether or not it is worth fixing the 2.6.x kernels to support the
broken firmware, as they seem to offer the upgrade to all customers anyway.
-- 
Andrew
> 
> --
> Ueimor
> 




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Re: ide: "lost interrupt" with 2.6.0

[akmiller]

It also doesn't work correctly with the Linux 2.4.20(using the installation
kernel off the RedHat 9 disk). It is confirmed to work with 2.4.2, as well as
with the 2.2.x series.

-- 
Yours sincerely,
Andrew


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Re: ide: "lost interrupt" with 2.6.0

[Mike Fedyk]

On Mon, Dec 29, 2003 at 02:39:30PM +1300, akmiller@nzol.net wrote:
> It also doesn't work correctly with the Linux 2.4.20(using the installation
> kernel off the RedHat 9 disk). It is confirmed to work with 2.4.2, as well as
> with the 2.2.x series.

Try narrowing down where in the 2.4 series the problem started, and use only
stock (kernel.org) kernels as dist kernels (redhat, etc.) since the dist
kernels have many patches that modify the behaviour of the kernel.

Do you have trouble with:

2.4.18?

2.4.20?

2.4.22?