Re: crash/reboot with rawmidi on ice1712 dual opteron

Re: crash/reboot with rawmidi on ice1712 dual opteron

[Takashi Iwai]

At Wed, 18 Apr 2007 17:15:41 +0200,
Florian wrote:
> 
> thanks for the reply. Some more info:
> - system is RH Enterprise AS 4 update 4
> - the soundcard is in a 64-bit PCI-X slot (so few soundcards fit
>   at all)
> - pcm with ice1712 is working fine
> - I disabled /proc/sys/kernel/panic_on_oops, but it still rebooted
>   the same way. Is there another way to prevent rebooting on panic
>   or so?
> - by using printk with serial console, I could trace the reboot to
>   occur at the very first outb() call in mpu401_uart.c:64
>   with data 0, addr 0x304C

The address sounds a bit strange to me, but maybe depending on BIOS.
Check /proc/ioports whether this really is within the range of the
corresponding soundcard.


Takashi

Re: crash/reboot with rawmidi on ice1712 dual opteron

[Florian]

Thanks for the reply. The relevant excerpt from /proc/ioports is

3000-3fff : PCI Bus #02
  3000-303f : 0000:02:01.0
    3000-303f : ICE1712
  3040-305f : 0000:02:01.0
    3040-305f : ICE1712
  3060-306f : 0000:02:01.0
    3060-306f : ICE1712
  3070-307f : 0000:02:01.0
    3070-307f : ICE1712
[full listing at end of message]

so I guess 304C is in range of the M-Audio Audiophile 24/96. Any
other ideas what I can try, either in ALSA code or elsewhere?

Thanks,
Florian


On 4/24/2007 2:54 PM, Takashi Iwai wrote:
> At Wed, 18 Apr 2007 17:15:41 +0200,
> Florian wrote:
>> thanks for the reply. Some more info:
>> - system is RH Enterprise AS 4 update 4
>> - the soundcard is in a 64-bit PCI-X slot (so few soundcards fit
>>   at all)
>> - pcm with ice1712 is working fine
>> - I disabled /proc/sys/kernel/panic_on_oops, but it still rebooted
>>   the same way. Is there another way to prevent rebooting on panic
>>   or so?
>> - by using printk with serial console, I could trace the reboot to
>>   occur at the very first outb() call in mpu401_uart.c:64
>>   with data 0, addr 0x304C
> 
> The address sounds a bit strange to me, but maybe depending on BIOS.
> Check /proc/ioports whether this really is within the range of the
> corresponding soundcard.
> 


0000-001f : dma1
0020-0021 : pic1
0040-0043 : timer0
0050-0053 : timer1
0060-006f : keyboard
0070-0077 : rtc
0080-008f : dma page reg
00a0-00a1 : pic2
00c0-00df : dma2
00f0-00ff : fpu
0170-0177 : ide1
02f8-02ff : serial
0376-0376 : ide1
0378-037a : parport0
037b-037f : parport0
03c0-03df : vga+
03f8-03ff : serial
04d0-04d1 : pnp 00:05
1000-10ff : 0000:00:07.5
  1000-10ff : AMD AMD8111
1100-117f : pnp 00:05
1180-11ff : pnp 00:05
1400-143f : 0000:00:07.5
  1400-143f : AMD AMD8111
1440-145f : 0000:00:07.2
  1440-145f : amd8111_smbus2
1460-146f : 0000:00:07.1
  1460-1467 : ide0
  1468-146f : ide1
2000-2fff : PCI Bus #01
  2000-200f : 0000:01:02.0
    2000-200f : sata_sil
  2010-2013 : 0000:01:02.0
    2010-2013 : sata_sil
  2014-2017 : 0000:01:02.0
    2014-2017 : sata_sil
  2018-201f : 0000:01:02.0
    2018-201f : sata_sil
  2020-2027 : 0000:01:02.0
    2020-2027 : sata_sil
3000-3fff : PCI Bus #02
  3000-303f : 0000:02:01.0
    3000-303f : ICE1712
  3040-305f : 0000:02:01.0
    3040-305f : ICE1712
  3060-306f : 0000:02:01.0
    3060-306f : ICE1712
  3070-307f : 0000:02:01.0
    3070-307f : ICE1712
4000-4fff : PCI Bus #81
  4000-4fff : PCI Bus #83
    4000-40ff : 0000:83:04.0
    4400-44ff : 0000:83:04.0
    4800-48ff : 0000:83:04.1
    4c00-4cff : 0000:83:04.1
8000-8003 : PM1a_EVT_BLK
8004-8005 : PM1a_CNT_BLK
8008-800b : PM_TMR
8010-8015 : ACPI CPU throttle
8020-8023 : GPE0_BLK
80b0-80b7 : GPE1_BLK
80e0-80ef : amd756_smbus

Re: crash/reboot with rawmidi on ice1712 dual opteron

[Takashi Iwai]

At Tue, 24 Apr 2007 15:27:23 +0200,
Florian wrote:
> 
> Thanks for the reply. The relevant excerpt from /proc/ioports is
> 
> 3000-3fff : PCI Bus #02
>   3000-303f : 0000:02:01.0
>     3000-303f : ICE1712
>   3040-305f : 0000:02:01.0
>     3040-305f : ICE1712
>   3060-306f : 0000:02:01.0
>     3060-306f : ICE1712
>   3070-307f : 0000:02:01.0
>     3070-307f : ICE1712
> [full listing at end of message]
> 
> so I guess 304C is in range of the M-Audio Audiophile 24/96. Any
> other ideas what I can try, either in ALSA code or elsewhere?

What shows /proc/asound/cards?  Does it point 0x3000 or 0x3040?


Takashi

Re: crash/reboot with rawmidi on ice1712 dual opteron

[Florian]

Hi Takashi,

the ice1712 points to 0x3040.

Thanks,
Florian


On 4/24/2007 3:39 PM, Takashi Iwai wrote:
> At Tue, 24 Apr 2007 15:27:23 +0200,
> Florian wrote:
>> Thanks for the reply. The relevant excerpt from /proc/ioports is
>>
>> 3000-3fff : PCI Bus #02
>>   3000-303f : 0000:02:01.0
>>     3000-303f : ICE1712
>>   3040-305f : 0000:02:01.0
>>     3040-305f : ICE1712
>>   3060-306f : 0000:02:01.0
>>     3060-306f : ICE1712
>>   3070-307f : 0000:02:01.0
>>     3070-307f : ICE1712
>> [full listing at end of message]
>>
>> so I guess 304C is in range of the M-Audio Audiophile 24/96. Any
>> other ideas what I can try, either in ALSA code or elsewhere?
> 
> What shows /proc/asound/cards?  Does it point 0x3000 or 0x3040?
> 
> 
> Takashi
> 
> 

-- 
Florian Bomers
bome.com

-------------------------------------------------------
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Re: crash/reboot with rawmidi on ice1712 dual opteron

[Takashi Iwai]

At Tue, 24 Apr 2007 15:43:54 +0200,
Florian wrote:
> 
> Hi Takashi,
> 
> the ice1712 points to 0x3040.

Hm...  could you show the output of "lspci -v" (regarding ice1712) ?
I wonder why 0x3000-0x303f is ignored.


Takashi

> 
> Thanks,
> Florian
> 
> 
> On 4/24/2007 3:39 PM, Takashi Iwai wrote:
> > At Tue, 24 Apr 2007 15:27:23 +0200,
> > Florian wrote:
> >> Thanks for the reply. The relevant excerpt from /proc/ioports is
> >>
> >> 3000-3fff : PCI Bus #02
> >>   3000-303f : 0000:02:01.0
> >>     3000-303f : ICE1712
> >>   3040-305f : 0000:02:01.0
> >>     3040-305f : ICE1712
> >>   3060-306f : 0000:02:01.0
> >>     3060-306f : ICE1712
> >>   3070-307f : 0000:02:01.0
> >>     3070-307f : ICE1712
> >> [full listing at end of message]
> >>
> >> so I guess 304C is in range of the M-Audio Audiophile 24/96. Any
> >> other ideas what I can try, either in ALSA code or elsewhere?
> > 
> > What shows /proc/asound/cards?  Does it point 0x3000 or 0x3040?
> > 
> > 
> > Takashi
> > 
> > 
> 
> -- 
> Florian Bomers
> bome.com
> 
> -------------------------------------------------------
> Music Software, Development Tools:  http://www.bome.com
> Java Sound extensions, plugins: http://www.tritonus.org
> The Java Sound Resources:    http://www.jsresources.org
> -------------------------------------------------------
> Please quote this email in your reply. Thanks!
> 

Re: crash/reboot with rawmidi on ice1712 dual opteron

[Florian]

lspci -v shows:

02:01.0 Multimedia audio controller: VIA Technologies Inc. ICE1712
[Envy24] PCI Multi-Channel I/O Controller (rev 02)
        Subsystem: VIA Technologies Inc. M-Audio Delta Audiophile
        Flags: bus master, medium devsel, latency 64, IRQ 20
        I/O ports at 3040 [size=32]
        I/O ports at 3070 [size=16]
        I/O ports at 3060 [size=16]
        I/O ports at 3000 [size=64]
        Capabilities: [80] Power Management version 1

Florian


On 4/24/2007 3:51 PM, Takashi Iwai wrote:
> At Tue, 24 Apr 2007 15:43:54 +0200,
> Florian wrote:
>> Hi Takashi,
>>
>> the ice1712 points to 0x3040.
> 
> Hm...  could you show the output of "lspci -v" (regarding ice1712) ?
> I wonder why 0x3000-0x303f is ignored.
> 
> 
> Takashi
> 
>> Thanks,
>> Florian
>>
>>
>> On 4/24/2007 3:39 PM, Takashi Iwai wrote:
>>> At Tue, 24 Apr 2007 15:27:23 +0200,
>>> Florian wrote:
>>>> Thanks for the reply. The relevant excerpt from /proc/ioports is
>>>>
>>>> 3000-3fff : PCI Bus #02
>>>>   3000-303f : 0000:02:01.0
>>>>     3000-303f : ICE1712
>>>>   3040-305f : 0000:02:01.0
>>>>     3040-305f : ICE1712
>>>>   3060-306f : 0000:02:01.0
>>>>     3060-306f : ICE1712
>>>>   3070-307f : 0000:02:01.0
>>>>     3070-307f : ICE1712
>>>> [full listing at end of message]
>>>>
>>>> so I guess 304C is in range of the M-Audio Audiophile 24/96. Any
>>>> other ideas what I can try, either in ALSA code or elsewhere?
>>> What shows /proc/asound/cards?  Does it point 0x3000 or 0x3040?
>>>
>>>
>>> Takashi
>>>
>>>
>> -- 
>> Florian Bomers
>> bome.com
>>
>> -------------------------------------------------------
>> Music Software, Development Tools:  http://www.bome.com
>> Java Sound extensions, plugins: http://www.tritonus.org
>> The Java Sound Resources:    http://www.jsresources.org
>> -------------------------------------------------------
>> Please quote this email in your reply. Thanks!
>>
> _______________________________________________
> Alsa-devel mailing list
> Alsa-devel@alsa-project.org
> http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
> 
> 

-- 
Florian Bomers
bome.com

-------------------------------------------------------
Music Software, Development Tools:  http://www.bome.com
Java Sound extensions, plugins: http://www.tritonus.org
The Java Sound Resources:    http://www.jsresources.org
-------------------------------------------------------
Please quote this email in your reply. Thanks!

Re: crash/reboot with rawmidi on ice1712 dual opteron

[Daniel James]

Hi Takashi, hi Florian,

I found a similar MIDI crashing bug on a dual Opteron machine in 2005, 
even with only one processor installed, which I reported at the time on 
alsa-devel. The card was an M-Audio Audiophile 24/96, normally reliable.

I couldn't replicate this problem on an Asus single processor Opteron 
board, so I concluded it was a quirk of my dual socket Tyan S2875 
motherboard:

http://article.gmane.org/gmane.linux.alsa.devel/24682/
http://article.gmane.org/gmane.linux.alsa.devel/25323/

Last time I tested it, earlier this year I think, the bug was still 
there. I even flashed the BIOS of the Tyan board in case it was a BIOS 
bug, but it made no difference. I installed a 32-bit distro and that 
made no difference either.

Maybe there is something more generally wrong here, which only affects 
dual-processor AMD64 hardware. I can make the Tyan machine available 
over SSH if that helps, it has a fixed IP address.

Cheers!

Daniel

Re: crash/reboot with rawmidi on ice1712 dual opteron

[Takashi Iwai]

At Tue, 24 Apr 2007 16:12:10 +0200,
Florian wrote:
> 
> lspci -v shows:
> 
> 02:01.0 Multimedia audio controller: VIA Technologies Inc. ICE1712
> [Envy24] PCI Multi-Channel I/O Controller (rev 02)
>         Subsystem: VIA Technologies Inc. M-Audio Delta Audiophile
>         Flags: bus master, medium devsel, latency 64, IRQ 20
>         I/O ports at 3040 [size=32]
>         I/O ports at 3070 [size=16]
>         I/O ports at 3060 [size=16]
>         I/O ports at 3000 [size=64]
>         Capabilities: [80] Power Management version 1

Ah OK, it's non-linear...

When the hang-up occurs at the first write, it must be in
snd_mpu401_uart_cmd().  At the very beginning, it calls
	mpu->write(mpu, 0x00, MPU401D(mpu));
Try to comment out this and see what happens.

Do I understand correctly that this bug happens when you open a
rawmidi device for read, e.g.
	% cat /dev/snd/midiC0D0 > /dev/null
??


Takashi

Re: crash/reboot with rawmidi on ice1712 dual opteron

[Takashi Iwai]

At Tue, 24 Apr 2007 15:23:52 +0100,
Daniel James wrote:
> 
> Hi Takashi, hi Florian,
> 
> I found a similar MIDI crashing bug on a dual Opteron machine in 2005, 
> even with only one processor installed, which I reported at the time on 
> alsa-devel. The card was an M-Audio Audiophile 24/96, normally reliable.
> 
> I couldn't replicate this problem on an Asus single processor Opteron 
> board, so I concluded it was a quirk of my dual socket Tyan S2875 
> motherboard:
> 
> http://article.gmane.org/gmane.linux.alsa.devel/24682/
> http://article.gmane.org/gmane.linux.alsa.devel/25323/
> 
> Last time I tested it, earlier this year I think, the bug was still 
> there. I even flashed the BIOS of the Tyan board in case it was a BIOS 
> bug, but it made no difference. I installed a 32-bit distro and that 
> made no difference either.
> 
> Maybe there is something more generally wrong here, which only affects 
> dual-processor AMD64 hardware. I can make the Tyan machine available 
> over SSH if that helps, it has a fixed IP address.

The most important thing is to find out what triggers which result.
As far as I understand from Florian's analysis, the io-port access
results in a machine reboot, not a kernel panic or so.  It's scary
because the controls is completely out of kernel.

Perhaps an easiest but foolishest way to trace this is to put printk
at each io-port access and any other important points, and give some
sleep at each point, then watch the kernel message.  You can get rid
of spin_lock_*() around that, just for testing.


Takashi

Re: crash/reboot with rawmidi on ice1712 dual opteron

[Florian]

> When the hang-up occurs at the first write, it must be in 
> snd_mpu401_uart_cmd().  At the very beginning, it calls 
> mpu->write(mpu, 0x00, MPU401D(mpu)); Try to comment out this and
> see what happens.

I had tried that - I think that I just commented out the reset
command. It would not crash or reboot, but it did not haver
functionality either.

> Do I understand correctly that this bug happens when you open a 
> rawmidi device for read, e.g. % cat /dev/snd/midiC0D0 > /dev/null
> 
yes. I usually used
amidi -p hw:0 -d

> Perhaps an easiest but foolishest way to trace this is to put
> printk at each io-port access and any other important points, and
> give some sleep at each point, then watch the kernel message.
> You can get rid of spin_lock_*() around that, just for testing.

I've done this until I traced it to the first outb() call, i.e. the
initialization mentioned above. The first outb() will cause the reboot.

Florian


> ??
> 
> 
> Takashi
> 
> 

-- 
Florian Bomers
bome.com

-------------------------------------------------------
Music Software, Development Tools:  http://www.bome.com
Java Sound extensions, plugins: http://www.tritonus.org
The Java Sound Resources:    http://www.jsresources.org
-------------------------------------------------------
Please quote this email in your reply. Thanks!

Re: crash/reboot with rawmidi on ice1712 dual opteron

[Daniel James]

Hi Takashi,

> The most important thing is to find out what triggers which result.
> As far as I understand from Florian's analysis, the io-port access
> results in a machine reboot, not a kernel panic or so.

In my case, I saw a hard lock-up as soon as I typed the name of any MIDI 
program, even 'aconnect'. There was no panic or log information, just a 
complete freeze.

Cheers!

Daniel

Re: crash/reboot with rawmidi on ice1712 dual opteron

[Takashi Iwai]

At Tue, 24 Apr 2007 16:53:20 +0200,
Florian wrote:
> 
> > When the hang-up occurs at the first write, it must be in 
> > snd_mpu401_uart_cmd().  At the very beginning, it calls 
> > mpu->write(mpu, 0x00, MPU401D(mpu)); Try to comment out this and
> > see what happens.
> 
> I had tried that - I think that I just commented out the reset
> command.

The reset command contains a series of writes.  The write access (zero
to 0x304c) is the very first part, and this isn't always necessary.
For example, trident doesn't like this sequence.  So, just commenting
out this write should be fairly harmless to the later behavior.

So, commenting only the first zero write is worth to try (if you
didn't do yet).


> It would not crash or reboot, but it did not haver
> functionality either.
 
> > Do I understand correctly that this bug happens when you open a 
> > rawmidi device for read, e.g. % cat /dev/snd/midiC0D0 > /dev/null
> > 
> yes. I usually used
> amidi -p hw:0 -d
> 
> > Perhaps an easiest but foolishest way to trace this is to put
> > printk at each io-port access and any other important points, and
> > give some sleep at each point, then watch the kernel message.
> > You can get rid of spin_lock_*() around that, just for testing.
> 
> I've done this until I traced it to the first outb() call, i.e. the
> initialization mentioned above. The first outb() will cause the reboot.

And this causes an immediate reboot, not panic or oops, right?
You shouldn't do this kind of debug on X but on VGA console, BTW.


Takashi

Re: crash/reboot with rawmidi on ice1712 dual opteron

[Florian]

IT WORKED! I fixed it in this way:

mpu401_uart.c:229

if (mpu->hardware != MPU401_HW_TRID4DWAVE
    && mpu->hardware != MPU401_HW_ICE1712) {
	mpu->write(mpu, 0x00, MPU401D(mpu));
	/*snd_mpu401_uart_clear_rx(mpu);*/
}

I don't know if this will work on non-AMD machines and if it will
work on all ice1712 machines... Next week I can test it with
different M-Audio cards on single-processor machines (Pentium and AMD).

Thanks a lot!
Florian


On 4/24/2007 5:04 PM, Takashi Iwai wrote:
> At Tue, 24 Apr 2007 16:53:20 +0200,
> Florian wrote:
>>> When the hang-up occurs at the first write, it must be in 
>>> snd_mpu401_uart_cmd().  At the very beginning, it calls 
>>> mpu->write(mpu, 0x00, MPU401D(mpu)); Try to comment out this and
>>> see what happens.
>> I had tried that - I think that I just commented out the reset
>> command.
> 
> The reset command contains a series of writes.  The write access (zero
> to 0x304c) is the very first part, and this isn't always necessary.
> For example, trident doesn't like this sequence.  So, just commenting
> out this write should be fairly harmless to the later behavior.
> 
> So, commenting only the first zero write is worth to try (if you
> didn't do yet).
> 
> 
>> It would not crash or reboot, but it did not haver
>> functionality either.
>  
>>> Do I understand correctly that this bug happens when you open a 
>>> rawmidi device for read, e.g. % cat /dev/snd/midiC0D0 > /dev/null
>>>
>> yes. I usually used
>> amidi -p hw:0 -d
>>
>>> Perhaps an easiest but foolishest way to trace this is to put
>>> printk at each io-port access and any other important points, and
>>> give some sleep at each point, then watch the kernel message.
>>> You can get rid of spin_lock_*() around that, just for testing.
>> I've done this until I traced it to the first outb() call, i.e. the
>> initialization mentioned above. The first outb() will cause the reboot.
> 
> And this causes an immediate reboot, not panic or oops, right?
> You shouldn't do this kind of debug on X but on VGA console, BTW.
> 
> 
> Takashi
> 
> 

-- 
Florian Bomers
bome.com

-------------------------------------------------------
Music Software, Development Tools:  http://www.bome.com
Java Sound extensions, plugins: http://www.tritonus.org
The Java Sound Resources:    http://www.jsresources.org
-------------------------------------------------------
Please quote this email in your reply. Thanks!

Re: crash/reboot with rawmidi on ice1712 dual opteron

[Daniel James]

Hi Florian,

> IT WORKED! I fixed it in this way:
> 
> mpu401_uart.c:229
> 
> if (mpu->hardware != MPU401_HW_TRID4DWAVE
>     && mpu->hardware != MPU401_HW_ICE1712) {
> 	mpu->write(mpu, 0x00, MPU401D(mpu));
> 	/*snd_mpu401_uart_clear_rx(mpu);*/
> }
> 
> I don't know if this will work on non-AMD machines and if it will
> work on all ice1712 machines...

I can test it here - which version is your patch against?

Cheers!

Daniel

Re: crash/reboot with rawmidi on ice1712 dual opteron

[Florian]

it's the hg version from last Monday. In any case, just look for the
 string "MPU401_HW_TRID" - it only appears once in the file, then
add this condition:

     && mpu->hardware != MPU401_HW_ICE1712) {

One other thing: this fix does not fix MIDI output. Unfortunately I
can't test this now.

Florian


On 4/25/2007 11:12 AM, Daniel James wrote:
> Hi Florian,
> 
>> IT WORKED! I fixed it in this way:
>>
>> mpu401_uart.c:229
>>
>> if (mpu->hardware != MPU401_HW_TRID4DWAVE
>>     && mpu->hardware != MPU401_HW_ICE1712) {
>> 	mpu->write(mpu, 0x00, MPU401D(mpu));
>> 	/*snd_mpu401_uart_clear_rx(mpu);*/
>> }
>>
>> I don't know if this will work on non-AMD machines and if it will
>> work on all ice1712 machines...
> 
> I can test it here - which version is your patch against?
> 
> Cheers!
> 
> Daniel
> _______________________________________________
> Alsa-devel mailing list
> Alsa-devel@alsa-project.org
> http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
> 
> 

-- 
Florian Bomers
bome.com

-------------------------------------------------------
Music Software, Development Tools:  http://www.bome.com
Java Sound extensions, plugins: http://www.tritonus.org
The Java Sound Resources:    http://www.jsresources.org
-------------------------------------------------------
Please quote this email in your reply. Thanks!

Re: crash/reboot with rawmidi on ice1712 dual opteron

[Takashi Iwai]

At Wed, 25 Apr 2007 15:07:44 +0200,
Florian wrote:
> 
> it's the hg version from last Monday. In any case, just look for the
>  string "MPU401_HW_TRID" - it only appears once in the file, then
> add this condition:
> 
>      && mpu->hardware != MPU401_HW_ICE1712) {
> 
> One other thing: this fix does not fix MIDI output.

I don't know of the MIDI output problem?  Descriptions?


Takashi

Re: crash/reboot with rawmidi on ice1712 dual opteron

[Florian]

> I don't know of the MIDI output problem?  Descriptions?

it's the same symptom: MIDI input works, but opening MIDI output
will reboot immediately. I haven't found a similar line to exclude
for MIDI output...

Florian


On 4/25/2007 3:11 PM, Takashi Iwai wrote:
> At Wed, 25 Apr 2007 15:07:44 +0200,
> Florian wrote:
>> it's the hg version from last Monday. In any case, just look for the
>>  string "MPU401_HW_TRID" - it only appears once in the file, then
>> add this condition:
>>
>>      && mpu->hardware != MPU401_HW_ICE1712) {
>>
>> One other thing: this fix does not fix MIDI output.
> 
> I don't know of the MIDI output problem?  Descriptions?
> 
> 
> Takashi
> 
> 

-- 
Florian Bomers
bome.com

-------------------------------------------------------
Music Software, Development Tools:  http://www.bome.com
Java Sound extensions, plugins: http://www.tritonus.org
The Java Sound Resources:    http://www.jsresources.org
-------------------------------------------------------
Please quote this email in your reply. Thanks!