30 Sep
2007
30 Sep
'07
12:25 p.m.
Hi,
I have many xruns when I read/write files on my SCSI
disks. The suspected module is aic7xxx. I read a thread
on LAU ('xrun madness') about this, but it dates back
to 2004 and gives no solution. This problem does not
occur with my other SATA drives. Could someone give me
advices to troubleshoot this?
Details:
I have an Adaptec 39160 controller and 2 disks
in a RAID1 (software) array. The module is aic7xxx.
My filesystem is ext3. I use debian/unstable with a 2.6.22
RT kernel and RTirq. I tweaked my PCI latencies to 0
for the Adaptec PCI bus using setpci.
Jackd being launched RT, I have no xruns with
journalling operations or updatedb. But moderately
intense operations on this array do cause many many xruns:
for instance loading files into memory (launching
firefox, or apt-get update, or copying files).
Of course, recording music with Ardour causes
many xruns too.
Quite surprisingly (for me), I have no xruns when
using my other SATA RAID5 (software) array, even
very intensively.
Thank you for your help!
Romain
30 Sep
30 Sep
1:05 p.m.
I forgot to mention that my audio card does not share
its IRQ with aic7xxx.
Romain Bossart wrote:
Hi,
I have many xruns when I read/write files on my SCSI
disks. The suspected module is aic7xxx. I read a thread
on LAU ('xrun madness') about this, but it dates back
to 2004 and gives no solution. This problem does not
occur with my other SATA drives. Could someone give me
advices to troubleshoot this?
Details:
I have an Adaptec 39160 controller and 2 disks
in a RAID1 (software) array. The module is aic7xxx.
My filesystem is ext3. I use debian/unstable with a 2.6.22
RT kernel and RTirq. I tweaked my PCI latencies to 0
for the Adaptec PCI bus using setpci.
Jackd being launched RT, I have no xruns with
journalling operations or updatedb. But moderately
intense operations on this array do cause many many xruns:
for instance loading files into memory (launching
firefox, or apt-get update, or copying files).
Of course, recording music with Ardour causes
many xruns too.
Quite surprisingly (for me), I have no xruns when
using my other SATA RAID5 (software) array, even
very intensively.
Thank you for your help!
Romain
1:58 p.m.
There is a problem with the Adaptec SCSI cards. They essentially take
over the PCI bus when they run. I don't believe that there is any fix
for this. My advice to you would be to get rid of the card and the
drives. Where I work we've switched everything over to SATA since they
are just as fast and just as reliable as SCSI (see
http://storagemojo.com/?p=383). They are also much easier to find and,
since we run a worldwide operation, this is extremely important.
. On Sun, 2007-09-30 at 17:04 +0200, Romain Bossart wrote:
I forgot to mention that my audio card does not share
its IRQ with aic7xxx.
Romain Bossart wrote:
--
Jan 'Evil Twin' Depner
http://myweb.cableone.net/eviltwin69
"Life should NOT be a journey to the grave with the intention of
arriving safely in an attractive and well preserved body, but rather to
skid in sideways, chardonnay in one hand, chocolate in the other, body
thoroughly used up, totally worn out, and screaming 'WOO HOO, what a ride'"
Hi,
I have many xruns when I read/write files on my SCSI
disks. The suspected module is aic7xxx. I read a thread
on LAU ('xrun madness') about this, but it dates back
to 2004 and gives no solution. This problem does not
occur with my other SATA drives. Could someone give me
advices to troubleshoot this?
Details:
I have an Adaptec 39160 controller and 2 disks
in a RAID1 (software) array. The module is aic7xxx.
My filesystem is ext3. I use debian/unstable with a 2.6.22
RT kernel and RTirq. I tweaked my PCI latencies to 0
for the Adaptec PCI bus using setpci.
Jackd being launched RT, I have no xruns with
journalling operations or updatedb. But moderately
intense operations on this array do cause many many xruns:
for instance loading files into memory (launching
firefox, or apt-get update, or copying files).
Of course, recording music with Ardour causes
many xruns too.
Quite surprisingly (for me), I have no xruns when
using my other SATA RAID5 (software) array, even
very intensively.
Thank you for your help!
Romain
_______________________________________________
Linux-audio-user mailing list
Linux-audio-user(a)lists.linuxaudio.org
http://lists.linuxaudio.org/mailman/listinfo.cgi/linux-audio-user 
1 Oct
1 Oct
5:10 a.m.
On Sun, 2007-09-30 at 17:04 +0200, Romain Bossart wrote:
I forgot to mention that my audio card does not share
its IRQ with aic7xxx.
Romain Bossart wrote:
> Hi,
>
> I have many xruns when I read/write files on my SCSI
> disks. The suspected module is aic7xxx. I read a thread
> on LAU ('xrun madness') about this, but it dates back
> to 2004 and gives no solution. This problem does not
> occur with my other SATA drives. Could someone give me
> advices to troubleshoot this?
>
>
> Details:
>
> I have an Adaptec 39160 controller and 2 disks
> in a RAID1 (software) array. The module is aic7xxx.
> My filesystem is ext3. I use debian/unstable with a 2.6.22
> RT kernel and RTirq. I tweaked my PCI latencies to 0
> for the Adaptec PCI bus using setpci.
>
> Jackd being launched RT, I have no xruns with
> journalling operations or updatedb. But moderately
> intense operations on this array do cause many many xruns:
> for instance loading files into memory (launching
> firefox, or apt-get update, or copying files).
> Of course, recording music with Ardour causes
> many xruns too.
>
> Quite surprisingly (for me), I have no xruns when
> using my other SATA RAID5 (software) array, even
> very intensively.
I had exactly this trouble with an Adaptec 29160 when I moved from a
dual-processor motherboard to a single-processor (about 4 years ago). I
eventually gave up and bought an IDE drive. I've since moved to a dual
core, with a SATA drive.
bye
John
3:44 p.m.
Thank you for your interesting answers. I am of course
a bit disappointed, but at least I won't waste any more time.
As far as I could check, working on the SATA Raid5
(audio data), and not asking much to the SCSI Raid1
(system) does work for me. No xruns, etc. I will keep it
that way as long as I can use it reliably.
Thank you!
Romain
John Anderson wrote:
On Sun, 2007-09-30 at 17:04 +0200, Romain Bossart
wrote:
I forgot to mention that my audio card does not
share
its IRQ with aic7xxx.
Romain Bossart wrote:
> Hi,
>
> I have many xruns when I read/write files on my SCSI
> disks. The suspected module is aic7xxx. I read a thread
> on LAU ('xrun madness') about this, but it dates back
> to 2004 and gives no solution. This problem does not
> occur with my other SATA drives. Could someone give me
> advices to troubleshoot this?
>
>
> Details:
>
> I have an Adaptec 39160 controller and 2 disks
> in a RAID1 (software) array. The module is aic7xxx.
> My filesystem is ext3. I use debian/unstable with a 2.6.22
> RT kernel and RTirq. I tweaked my PCI latencies to 0
> for the Adaptec PCI bus using setpci.
>
> Jackd being launched RT, I have no xruns with
> journalling operations or updatedb. But moderately
> intense operations on this array do cause many many xruns:
> for instance loading files into memory (launching
> firefox, or apt-get update, or copying files).
> Of course, recording music with Ardour causes
> many xruns too.
>
> Quite surprisingly (for me), I have no xruns when
> using my other SATA RAID5 (software) array, even
> very intensively.
I had exactly this trouble with an Adaptec 29160 when I moved from a
dual-processor motherboard to a single-processor (about 4 years ago). I
eventually gave up and bought an IDE drive. I've since moved to a dual
core, with a SATA drive.
bye
John 
30 Sep
30 Sep
5:35 p.m.
Hi,
I have many xruns when I read/write files on my SCSI
disks. The suspected module is aic7xxx. I read a thread
...
RT kernel and RTirq. I tweaked my PCI latencies to 0
for the Adaptec PCI bus using setpci.
I don't know what 0 would stand for, but a lower latencies means
more interrupts. Maybe theese can help you:
http://ccrma.stanford.edu/mirrors/lalists/lau/2007/04/0340.html
http://ccrma.stanford.edu/mirrors/lalists/lau/2007/04/0319.html
...
Regards,
/Karl
6063
days inactive
6064
days old
linux-audio-user@lists.linuxaudio.org
5 comments
4 participants
participants (4)
-
Jan Depner -
John Anderson -
karl＠aspodata.se -
Romain Bossart