From: Bartlomiej Zolnierkiewicz <B.Zolnierkiewicz@elka.pw.edu.pl>
To: Patrick Dreker <patrick@dreker.de>
Subject: Re: IDE Timeout problem on Intel PIIX3 (Triton 2) chipset
Date: Mon, 28 Jun 2004 22:21:48 +0200
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On Monday 28 of June 2004 14:48, Patrick Dreker wrote:
> Hello...

Hi,

> Any kernel above and including 2.4.21 (including 2.6.5 and 2.6.7, others
> not tested) produces the following errors quite often (once or twice per
> minute, with the corresponding delay) and the harddisk drops out of DMA.
>
> -------------------------------------------------
> hda: dma_timer_expiry: dma status == 0x20
> hda: timeout waiting for DMA
> hda: timeout waiting for DMA
> hda: (__ide_dma_test_irq) called while not waiting
> hda: status error: status=0x58 { DriveReady SeekComplete DataRequest }
>
> hda: drive not ready for command
> -----------------------------------------------
>
> I have checked that the drive and cable are OK (tested in another machine)
> and no matter what drive I connect to the IDE controller, they *all*
> produce the above error and drop DMA after some seconds.
>
> Currently I am stuck at kernel version 2.4.20, as any later kernel severely
> degrades the performance of the machine (Pentium Pro 200).
>
> At http://www.uwsg.iu.edu/hypermail/linux/kernel/0304.1/0332.html I found a
> thread which hints that IRQ sharing maybe the culprit, but /proc/interrupts
> shows that the ide interrupt is not shared...

This was HPT specific problem.

> lspci and /proc/interrupts are included at the end of this mail.
>
> What can I do to debug this problem?

"diff -u" on "lspci -s 07.1 -xxx" outputs for 2.4.20 and 2.4.21 kernels.

Doing bisection search on 2.4.21-pre kernels would also help.

> Thanks,
> Patrick
>
> lspci:
> -----------------------
> 0000:00:00.0 Host bridge: Intel Corp. 440FX - 82441FX PMC [Natoma] (rev 02)
> 0000:00:07.0 ISA bridge: Intel Corp. 82371SB PIIX3 ISA [Natoma/Triton II]
> (rev 01)
> 0000:00:07.1 IDE interface: Intel Corp. 82371SB PIIX3 IDE [Natoma/Triton
> II] 0000:00:0a.0 VGA compatible controller: Texas Instruments TVP4020
> [Permedia 2] (rev 01)
> 0000:00:0c.0 Ethernet controller: Realtek Semiconductor Co., Ltd.
> RTL-8139/8139C/8139C+ (rev 10)
> 0000:00:0d.0 Ethernet controller: Realtek Semiconductor Co., Ltd.
> RTL-8029(AS) --------------------------
>
> /proc/interrupts:
> -------------------------
>            CPU0
>   0:   55623224    IO-APIC-edge  timer
>   1:          2    IO-APIC-edge  keyboard
>   2:          0          XT-PIC  cascade
>   8:          4    IO-APIC-edge  rtc
>  10:   59404185   IO-APIC-level  eth1
>  11:   64467911   IO-APIC-level  eth0
>  14:    9031698    IO-APIC-edge  ide0
> NMI:          0
> LOC:   55623074
> ERR:          0
> MIS:      13142
> ----------------------------

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