* dma problems with Serverworks CSB5 chipset
@ 2004-07-28 17:38 Richard Wohlstadter
2004-08-03 18:08 ` Marcelo Tosatti
0 siblings, 1 reply; 6+ messages in thread
From: Richard Wohlstadter @ 2004-07-28 17:38 UTC (permalink / raw)
To: linux-kernel
Hello,
I have 200 servers in a cluster running vanilla kernel 2.4.26(not
tainted). Under heavy I/O activity I have various servers completely
lose access to their IDE bus. Logs show the same error every time:
hda: dma_timer_expiry: dma status == 0x61
The kernel resets the IDE bus at this point. Sometimes things start
working again but mostly all ide access is lost and I have to reboot the
server. The chipset is:
00:0f.1 IDE interface: ServerWorks CSB5 IDE Controller (rev 93)
I have searched archives for problems with this chipset and I have seen
other users with this same issue, but no resolution to the problem. Is
there a known problem with this chipset version or could there be some
issues still with the serverworks driver? Any help would be much
appreciated. Thanks.
Rich Wohlstadter
modi@swbell.net
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: dma problems with Serverworks CSB5 chipset
2004-07-28 17:38 dma problems with Serverworks CSB5 chipset Richard Wohlstadter
@ 2004-08-03 18:08 ` Marcelo Tosatti
2004-08-03 17:31 ` Alan Cox
0 siblings, 1 reply; 6+ messages in thread
From: Marcelo Tosatti @ 2004-08-03 18:08 UTC (permalink / raw)
To: Richard Wohlstadter; +Cc: linux-kernel, Bartlomiej Zolnierkiewicz, Alan Cox
On Wed, Jul 28, 2004 at 12:38:59PM -0500, Richard Wohlstadter wrote:
> Hello,
>
> I have 200 servers in a cluster running vanilla kernel 2.4.26(not
> tainted). Under heavy I/O activity I have various servers completely
> lose access to their IDE bus. Logs show the same error every time:
>
> hda: dma_timer_expiry: dma status == 0x61
>
> The kernel resets the IDE bus at this point. Sometimes things start
> working again but mostly all ide access is lost and I have to reboot the
> server. The chipset is:
>
> 00:0f.1 IDE interface: ServerWorks CSB5 IDE Controller (rev 93)
>
> I have searched archives for problems with this chipset and I have seen
> other users with this same issue, but no resolution to the problem. Is
> there a known problem with this chipset version or could there be some
> issues still with the serverworks driver? Any help would be much
> appreciated. Thanks.
Richard,
ServerWorks OSB4/5 chipsets are known to not work reliably with the Linux
IDE code. AFAIK its a hardware problem which we dont correctly work around.
Have you tried disabling DMA?
Bart and Alan are IDE experts, they can probably give you more useful
information.
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: dma problems with Serverworks CSB5 chipset
2004-08-03 18:08 ` Marcelo Tosatti
@ 2004-08-03 17:31 ` Alan Cox
2004-08-03 18:47 ` Rich Wohlstadter
2004-08-08 18:09 ` Torbjörn Olander
0 siblings, 2 replies; 6+ messages in thread
From: Alan Cox @ 2004-08-03 17:31 UTC (permalink / raw)
To: Marcelo Tosatti
Cc: Richard Wohlstadter, Linux Kernel Mailing List,
Bartlomiej Zolnierkiewicz
On Maw, 2004-08-03 at 19:08, Marcelo Tosatti wrote:
> ServerWorks OSB4/5 chipsets are known to not work reliably with the Linux
> IDE code. AFAIK its a hardware problem which we dont correctly work around.
>
> Have you tried disabling DMA?
>
> Bart and Alan are IDE experts, they can probably give you more useful
> information.
CSB5 is reliable, rock solidly so in my experience. OSB4 was the older
interface with problems. Are these systems SMP, what disks are you using
and in what IDE mode ?
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: dma problems with Serverworks CSB5 chipset
2004-08-03 17:31 ` Alan Cox
@ 2004-08-03 18:47 ` Rich Wohlstadter
2004-08-08 18:09 ` Torbjörn Olander
1 sibling, 0 replies; 6+ messages in thread
From: Rich Wohlstadter @ 2004-08-03 18:47 UTC (permalink / raw)
To: Alan Cox
Cc: Marcelo Tosatti, Linux Kernel Mailing List,
Bartlomiej Zolnierkiewicz
> On Maw, 2004-08-03 at 19:08, Marcelo Tosatti wrote:
>> ServerWorks OSB4/5 chipsets are known to not work reliably with the
>> Linux
>> IDE code. AFAIK its a hardware problem which we dont correctly work
>> around.
>>
>> Have you tried disabling DMA?
>>
>> Bart and Alan are IDE experts, they can probably give you more useful
>> information.
>
> CSB5 is reliable, rock solidly so in my experience. OSB4 was the older
> interface with problems. Are these systems SMP, what disks are you using
> and in what IDE mode ?
>
Yep, they are SMP(IBM blades with 2 Xeon 2.4Ghz). The blades use 1
little 40g laptop drive( TOSHIBA MK4019GAXB ). The drive is running UDMA
mode 4. Here is the output of /proc/ide/svwks:
ServerWorks OSB4/CSB5/CSB6
ServerWorks CSB5 Chipset (rev 93)
------------------------------- General Status
---------------------------------
--------------- Primary Channel ---------------- Secondary Channel
-------------
enabled enabled
--------------- drive0 --------- drive1 -------- drive0 ---------- drive1
------
DMA enabled: yes yes no no
UDMA enabled: yes yes no no
UDMA enabled: 4 4 0 0
DMA enabled: 2 2 2 2
PIO enabled: 4 4 ? ?
Let me know if you need any other specifics and thanks in advance for any
advice.
Rich
^ permalink raw reply [flat|nested] 6+ messages in thread* Re: dma problems with Serverworks CSB5 chipset
2004-08-03 17:31 ` Alan Cox
2004-08-03 18:47 ` Rich Wohlstadter
@ 2004-08-08 18:09 ` Torbjörn Olander
2004-08-23 18:59 ` Torbjörn Olander
1 sibling, 1 reply; 6+ messages in thread
From: Torbjörn Olander @ 2004-08-08 18:09 UTC (permalink / raw)
To: Alan Cox; +Cc: linux-kernel
I'm having the same problems here with linux 2.6.8-rc2 kernel here with
an Intel SAI2 dual SMP P3 motherboard with Serverworks Serverset III LE
chipset and CSB5 southbridge.
I run one WDC WD400BB-00DEA0 as master on each channel with SW RAID1 for
system. To even get DMA working I had to add
append="ide0=ata66 ide1=ata66"
in my lilo config. The system works fine with low load on the disks, but
if I copy greater amounts of data from a local SW RAID5 array I get the
same DMA timeout error and often it locks up completely.
If i disable DMA with hdparm the system works fine.
/proc/ide/svwks output:
(DMA disabled with hdparm)
ServerWorks OSB4/CSB5/CSB6
ServerWorks CSB5 Chipset (rev 93)
------------------------------- General Status
---------------------------------
--------------- Primary Channel ---------------- Secondary Channel
-------------
enabled enabled
--------------- drive0 --------- drive1 -------- drive0 ----------
drive1 ------
DMA enabled: no no no no
UDMA enabled: yes no yes no
UDMA enabled: 2 0 2 0
DMA enabled: 2 2 2 2
PIO enabled: 4 0 4 0
On Tue, 2004-08-03 at 19:31, Alan Cox wrote:
> On Maw, 2004-08-03 at 19:08, Marcelo Tosatti wrote:
> > ServerWorks OSB4/5 chipsets are known to not work reliably with the Linux
> > IDE code. AFAIK its a hardware problem which we dont correctly work around.
> >
> > Have you tried disabling DMA?
> >
> > Bart and Alan are IDE experts, they can probably give you more useful
> > information.
>
> CSB5 is reliable, rock solidly so in my experience. OSB4 was the older
> interface with problems. Are these systems SMP, what disks are you using
> and in what IDE mode ?
>
> -
> To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at http://vger.kernel.org/majordomo-info.html
> Please read the FAQ at http://www.tux.org/lkml/
--
Med vänliga hälsningar / Best regards
Torbjörn Olander
tosse@wlug.westbo.se
^ permalink raw reply [flat|nested] 6+ messages in thread* Re: dma problems with Serverworks CSB5 chipset
2004-08-08 18:09 ` Torbjörn Olander
@ 2004-08-23 18:59 ` Torbjörn Olander
0 siblings, 0 replies; 6+ messages in thread
From: Torbjörn Olander @ 2004-08-23 18:59 UTC (permalink / raw)
To: linux-kernel
Just want to report that after changing the disks to two Maxtor 6Y160P0
drives it works fine so the problem must be something in the combination
of CSB5 + WD400BB.
On Sun, 2004-08-08 at 20:09, Torbjörn Olander wrote:
> I'm having the same problems here with linux 2.6.8-rc2 kernel here with
> an Intel SAI2 dual SMP P3 motherboard with Serverworks Serverset III LE
> chipset and CSB5 southbridge.
>
> I run one WDC WD400BB-00DEA0 as master on each channel with SW RAID1 for
> system. To even get DMA working I had to add
> append="ide0=ata66 ide1=ata66"
> in my lilo config. The system works fine with low load on the disks, but
> if I copy greater amounts of data from a local SW RAID5 array I get the
> same DMA timeout error and often it locks up completely.
>
> If i disable DMA with hdparm the system works fine.
>
> /proc/ide/svwks output:
> (DMA disabled with hdparm)
>
> ServerWorks OSB4/CSB5/CSB6
>
> ServerWorks CSB5 Chipset (rev 93)
> ------------------------------- General Status
> ---------------------------------
> --------------- Primary Channel ---------------- Secondary Channel
> -------------
> enabled enabled
> --------------- drive0 --------- drive1 -------- drive0 ----------
> drive1 ------
> DMA enabled: no no no no
> UDMA enabled: yes no yes no
> UDMA enabled: 2 0 2 0
> DMA enabled: 2 2 2 2
> PIO enabled: 4 0 4 0
>
>
>
> On Tue, 2004-08-03 at 19:31, Alan Cox wrote:
> > On Maw, 2004-08-03 at 19:08, Marcelo Tosatti wrote:
> > > ServerWorks OSB4/5 chipsets are known to not work reliably with the Linux
> > > IDE code. AFAIK its a hardware problem which we dont correctly work around.
> > >
> > > Have you tried disabling DMA?
> > >
> > > Bart and Alan are IDE experts, they can probably give you more useful
> > > information.
> >
> > CSB5 is reliable, rock solidly so in my experience. OSB4 was the older
> > interface with problems. Are these systems SMP, what disks are you using
> > and in what IDE mode ?
> >
> > -
> > To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
> > the body of a message to majordomo@vger.kernel.org
> > More majordomo info at http://vger.kernel.org/majordomo-info.html
> > Please read the FAQ at http://www.tux.org/lkml/
--
Med vänliga hälsningar / Best regards
Torbjörn Olander
tosse@wlug.westbo.se
^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2004-08-23 20:12 UTC | newest]
Thread overview: 6+ messages (download: mbox.gz follow: Atom feed
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2004-07-28 17:38 dma problems with Serverworks CSB5 chipset Richard Wohlstadter
2004-08-03 18:08 ` Marcelo Tosatti
2004-08-03 17:31 ` Alan Cox
2004-08-03 18:47 ` Rich Wohlstadter
2004-08-08 18:09 ` Torbjörn Olander
2004-08-23 18:59 ` Torbjörn Olander
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