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Alex Zarubin

2003-Jun-09 17:08 UTC

[Asterisk-Users] Dual T400P, SMP, performance issues

Hi, 

We are trying to validate Asterisk as a media gateway PRI <-> SIP with two
T400P (8 T1s) per box. The first
experience with BOX1 (Compaq, 2.53 GHz, 1 Gb RAM) and just one T400P was
encouraging - on the load
test with 3 T1s worth of calls we had on average 75% idle CPU.

Not so with BOX2 (Dell, single 2.6 GHz Xeon, 1 Gb RAM, 2 T400P) and BOX3
(Dell, dual 2.6 GHz Xeon,
2 Gb RAM, 2 T400P, asterisk/zaptel is built with SMP support).

On the similar load test (as with the BOX1) BOX2 was showing 0% idle CPU 70%
of the time. Just 3 T1s
out of 8.

On the load test with just 2 T1s BOX3 was very close to 0% idle on CPU0,
CPU1 was at 95% idle.
The process ksoftirqd_CPU0 was close to the top of the 'top', with
/proc/interrupts showing tor2 related
numbers growing very fast. We had 2 T1s plugged into the first T400P board,
with nothing going into the second,
but the number of interrupts for the both boards was growing at the same
pace. Here are the interrupts
(after the box reboot, so they are not that big as they were) - do they look
OK?


            CPU0       CPU1       CPU2       CPU3       
  0:     122556          0          0          0    IO-APIC-edge  timer
  1:          4          0          0          0    IO-APIC-edge  keyboard
  2:          0          0          0          0          XT-PIC  cascade
  5:          0          0          0          0   IO-APIC-level  usb-ohci
  8:          1          0          0          0    IO-APIC-edge  rtc
 12:         20          0          0          0    IO-APIC-edge  PS/2 Mouse
 14:         23          0          2          0    IO-APIC-edge  ide0
 20:     516930          0          0          0   IO-APIC-level  tor2
 24:     516524          0          0          0   IO-APIC-level  tor2
 28:      10600          0          0          0   IO-APIC-level  eth0
 29:       4837          0          0          0   IO-APIC-level  eth1
 30:      24831          0          0          0   IO-APIC-level  aacraid
NMI:          0          0          0          0 
LOC:     122430     122429     122429     122428 
ERR:          0
MIS:          0

Not sure what went wrong. Any suggestions on how to work with 2 T400P in a
box (without hurting performance)
and how to get advantage of SMP for Asterisk would be appreciated.

Any known Linux kernel related issues (2.4.20-13.7smp #1 SMP for BOX3 )?

Thank you.

Alex Zarubin


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Martin Pycko

2003-Jun-10 07:47 UTC

head link

[Asterisk-Users] Dual T400P, SMP, performance issues

Are you sure that you compiled zaptel for __SMP__ ?
Edit your zaptel/Makefile.

  0:   75283844   75241320   75286285   75247088    IO-APIC-edge  timer
  1:          1          0          1          1    IO-APIC-edge  keyboard
  2:          0          0          0          0          XT-PIC  cascade
  3:          0          0          0          0   IO-APIC-level  usb-ohci
  8:          1          0          0          0    IO-APIC-edge  rtc
 15:          1          0          0          1    IO-APIC-edge  ide1
 16:   22134870   22120997   22135905   22122829   IO-APIC-level  eth0
 25:       4670       4548       4614       4518   IO-APIC-level  tor2

All the four CPU's should have IRQ's like in the example above.

Martin

On Mon, 9 Jun 2003, Alex Zarubin wrote:
> Hi,
>
> We are trying to validate Asterisk as a media gateway PRI <-> SIP
with two
> T400P (8 T1s) per box. The first
> experience with BOX1 (Compaq, 2.53 GHz, 1 Gb RAM) and just one T400P was
> encouraging - on the load
> test with 3 T1s worth of calls we had on average 75% idle CPU.
>
> Not so with BOX2 (Dell, single 2.6 GHz Xeon, 1 Gb RAM, 2 T400P) and BOX3
> (Dell, dual 2.6 GHz Xeon,
> 2 Gb RAM, 2 T400P, asterisk/zaptel is built with SMP support).
>
> On the similar load test (as with the BOX1) BOX2 was showing 0% idle CPU
70%
> of the time. Just 3 T1s
> out of 8.
>
> On the load test with just 2 T1s BOX3 was very close to 0% idle on CPU0,
> CPU1 was at 95% idle.
> The process ksoftirqd_CPU0 was close to the top of the 'top', with
> /proc/interrupts showing tor2 related
> numbers growing very fast. We had 2 T1s plugged into the first T400P board,
> with nothing going into the second,
> but the number of interrupts for the both boards was growing at the same
> pace. Here are the interrupts
> (after the box reboot, so they are not that big as they were) - do they
look
> OK?
>
>
>             CPU0       CPU1       CPU2       CPU3
>   0:     122556          0          0          0    IO-APIC-edge  timer
>   1:          4          0          0          0    IO-APIC-edge  keyboard
>   2:          0          0          0          0          XT-PIC  cascade
>   5:          0          0          0          0   IO-APIC-level  usb-ohci
>   8:          1          0          0          0    IO-APIC-edge  rtc
>  12:         20          0          0          0    IO-APIC-edge  PS/2
Mouse
>  14:         23          0          2          0    IO-APIC-edge  ide0
>  20:     516930          0          0          0   IO-APIC-level  tor2
>  24:     516524          0          0          0   IO-APIC-level  tor2
>  28:      10600          0          0          0   IO-APIC-level  eth0
>  29:       4837          0          0          0   IO-APIC-level  eth1
>  30:      24831          0          0          0   IO-APIC-level  aacraid
> NMI:          0          0          0          0
> LOC:     122430     122429     122429     122428
> ERR:          0
> MIS:          0
>
> Not sure what went wrong. Any suggestions on how to work with 2 T400P in a
> box (without hurting performance)
> and how to get advantage of SMP for Asterisk would be appreciated.
>
> Any known Linux kernel related issues (2.4.20-13.7smp #1 SMP for BOX3 )?
>
> Thank you.
>
> Alex Zarubin
>
>
>

Alex Zarubin

2003-Jun-12 17:23 UTC

head link

[Asterisk-Users] Dual T400P, SMP, performance issues

Zaptel was compiled with -D__SMP__

We've installed irqbalance and the picture improved a lot
(thanks to Jared Smith). Do you still see problems in our /proc/interrupts?

The big issue for us now is that after 24+ hours of the test load PRI->SIP
our Dell PE2650, dual 2.6 GHz Xeon, 2 Gb RAM, 2 T400P, 2.4.20-18.7smp #1 SMP
stops responding to anything.

So the questions are:
	- are there known issues with PE2650 and ways to fix them?
	- can someone recommend the 'stable' 2.4 SMP kernel for this
	  kind of load?
	- any expertise in this area will be appreciated

           CPU0       CPU1       CPU2       CPU3       
  0:     230710      30030      50050          0    IO-APIC-edge  timer
  1:          5          0          0        233    IO-APIC-edge  keyboard
  2:          0          0          0          0          XT-PIC  cascade
  5:          0          0          0          0   IO-APIC-level  usb-ohci
  8:          1          0          0          0    IO-APIC-edge  rtc
 14:         27          0          2          0    IO-APIC-edge  ide0
 20:    2085442     400221          0     230232   IO-APIC-level  tor2
 24:     293848    1841658      10010     570568   IO-APIC-level  tor2
 28:          5      25643          0          0   IO-APIC-level  eth0
 29:          5          0    5165040          0   IO-APIC-level  eth1
 30:      43720      35467       1291       3296   IO-APIC-level  aacraid
NMI:          0          0          0          0 
LOC:     310618     310616     310616     310616 
ERR:          0
MIS:          0

Thank you.
Alex Zarubin

-----Original Message-----
From: Martin Pycko [mailto:martinp@digium.com]
Sent: Tuesday, June 10, 2003 9:48 AM
To: 'asterisk-users@lists.digium.com'
Subject: Re: [Asterisk-Users] Dual T400P, SMP, performance issues


Are you sure that you compiled zaptel for __SMP__ ?
Edit your zaptel/Makefile.

  0:   75283844   75241320   75286285   75247088    IO-APIC-edge  timer
  1:          1          0          1          1    IO-APIC-edge  keyboard
  2:          0          0          0          0          XT-PIC  cascade
  3:          0          0          0          0   IO-APIC-level  usb-ohci
  8:          1          0          0          0    IO-APIC-edge  rtc
 15:          1          0          0          1    IO-APIC-edge  ide1
 16:   22134870   22120997   22135905   22122829   IO-APIC-level  eth0
 25:       4670       4548       4614       4518   IO-APIC-level  tor2

All the four CPU's should have IRQ's like in the example above.

Martin

On Mon, 9 Jun 2003, Alex Zarubin wrote:
> Hi,
>
> We are trying to validate Asterisk as a media gateway PRI <-> SIP
with two
> T400P (8 T1s) per box. The first
> experience with BOX1 (Compaq, 2.53 GHz, 1 Gb RAM) and just one T400P was
> encouraging - on the load
> test with 3 T1s worth of calls we had on average 75% idle CPU.
>
> Not so with BOX2 (Dell, single 2.6 GHz Xeon, 1 Gb RAM, 2 T400P) and BOX3
> (Dell, dual 2.6 GHz Xeon,
> 2 Gb RAM, 2 T400P, asterisk/zaptel is built with SMP support).
>
> On the similar load test (as with the BOX1) BOX2 was showing 0% idle CPU
70%> of the time. Just 3 T1s
> out of 8.
>
> On the load test with just 2 T1s BOX3 was very close to 0% idle on CPU0,
> CPU1 was at 95% idle.
> The process ksoftirqd_CPU0 was close to the top of the 'top', with
> /proc/interrupts showing tor2 related
> numbers growing very fast. We had 2 T1s plugged into the first T400P
board,> with nothing going into the second,
> but the number of interrupts for the both boards was growing at the same
> pace. Here are the interrupts
> (after the box reboot, so they are not that big as they were) - do they
look> OK?
>
>
>             CPU0       CPU1       CPU2       CPU3
>   0:     122556          0          0          0    IO-APIC-edge  timer
>   1:          4          0          0          0    IO-APIC-edge  keyboard
>   2:          0          0          0          0          XT-PIC  cascade
>   5:          0          0          0          0   IO-APIC-level  usb-ohci
>   8:          1          0          0          0    IO-APIC-edge  rtc
>  12:         20          0          0          0    IO-APIC-edge  PS/2
Mouse>  14:         23          0          2          0    IO-APIC-edge  ide0
>  20:     516930          0          0          0   IO-APIC-level  tor2
>  24:     516524          0          0          0   IO-APIC-level  tor2
>  28:      10600          0          0          0   IO-APIC-level  eth0
>  29:       4837          0          0          0   IO-APIC-level  eth1
>  30:      24831          0          0          0   IO-APIC-level  aacraid
> NMI:          0          0          0          0
> LOC:     122430     122429     122429     122428
> ERR:          0
> MIS:          0
>
> Not sure what went wrong. Any suggestions on how to work with 2 T400P in a
> box (without hurting performance)
> and how to get advantage of SMP for Asterisk would be appreciated.
>
> Any known Linux kernel related issues (2.4.20-13.7smp #1 SMP for BOX3 )?
>
> Thank you.
>
> Alex Zarubin
>
>
>
_______________________________________________
Asterisk-Users mailing list
Asterisk-Users@lists.digium.com
http://lists.digium.com/mailman/listinfo/asterisk-users
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Alex Zarubin

2003-Jun-16 11:03 UTC

head link

[Asterisk-Users] Dual T400P, SMP, performance issues

Mark,

As far as pings - we have cases when we could ping the box on both
interfaces and there are cases when we could not (we tried 3-4 sets of
NICs and drivers). All telnets, X, ssh etc. are definitely dead.
No coredumps (asterisk was started with -g option), no kernel panics.
Black console, Alt-SysRq combinations don't work.
Pretty much no options but rebooting the box.

As far as SMP and single T400P - we'll try and report the results
but the idea was to go with as high density as possible ...

What do you think of using hyperthreading - should we enable or disable it
for the box running asterisk?

What about -DCONFIG_ZAPTEL_WATCHDOG ? Can it help and how to use it?

Thank you.
Alex Zarubin

-----Original Message-----
From: Mark Spencer [mailto:markster@digium.com]
Sent: Saturday, June 14, 2003 10:23 AM
To: 'asterisk-users@lists.digium.com'
Subject: RE: [Asterisk-Users] Dual T400P, SMP, performance issues


When you say "stops responding" do you mean no more pings, telnet
dead,
etc?  Or do you mean asterisk stops responding?  Is there a segfault or
kernel panic, or any other failure diagnostic?

Mark

On Thu, 12 Jun 2003, Alex Zarubin wrote:
> Zaptel was compiled with -D__SMP__
>
> We've installed irqbalance and the picture improved a lot
> (thanks to Jared Smith). Do you still see problems in our
/proc/interrupts?>
> The big issue for us now is that after 24+ hours of the test load
PRI->SIP
> our Dell PE2650, dual 2.6 GHz Xeon, 2 Gb RAM, 2 T400P, 2.4.20-18.7smp #1
SMP> stops responding to anything.
>
> So the questions are:
> 	- are there known issues with PE2650 and ways to fix them?
> 	- can someone recommend the 'stable' 2.4 SMP kernel for this
> 	  kind of load?
> 	- any expertise in this area will be appreciated
>
>            CPU0       CPU1       CPU2       CPU3
>   0:     230710      30030      50050          0    IO-APIC-edge  timer
>   1:          5          0          0        233    IO-APIC-edge  keyboard
>   2:          0          0          0          0          XT-PIC  cascade
>   5:          0          0          0          0   IO-APIC-level  usb-ohci
>   8:          1          0          0          0    IO-APIC-edge  rtc
>  14:         27          0          2          0    IO-APIC-edge  ide0
>  20:    2085442     400221          0     230232   IO-APIC-level  tor2
>  24:     293848    1841658      10010     570568   IO-APIC-level  tor2
>  28:          5      25643          0          0   IO-APIC-level  eth0
>  29:          5          0    5165040          0   IO-APIC-level  eth1
>  30:      43720      35467       1291       3296   IO-APIC-level  aacraid
> NMI:          0          0          0          0
> LOC:     310618     310616     310616     310616
> ERR:          0
> MIS:          0
>
> Thank you.
> Alex Zarubin
>
> -----Original Message-----
> From: Martin Pycko [mailto:martinp@digium.com]
> Sent: Tuesday, June 10, 2003 9:48 AM
> To: 'asterisk-users@lists.digium.com'
> Subject: Re: [Asterisk-Users] Dual T400P, SMP, performance issues
>
>
> Are you sure that you compiled zaptel for __SMP__ ?
> Edit your zaptel/Makefile.
>
>   0:   75283844   75241320   75286285   75247088    IO-APIC-edge  timer
>   1:          1          0          1          1    IO-APIC-edge  keyboard
>   2:          0          0          0          0          XT-PIC  cascade
>   3:          0          0          0          0   IO-APIC-level  usb-ohci
>   8:          1          0          0          0    IO-APIC-edge  rtc
>  15:          1          0          0          1    IO-APIC-edge  ide1
>  16:   22134870   22120997   22135905   22122829   IO-APIC-level  eth0
>  25:       4670       4548       4614       4518   IO-APIC-level  tor2
>
> All the four CPU's should have IRQ's like in the example above.
>
> Martin
>
> On Mon, 9 Jun 2003, Alex Zarubin wrote:
>
> > Hi,
> >
> > We are trying to validate Asterisk as a media gateway PRI <->
SIP with
two> > T400P (8 T1s) per box. The first
> > experience with BOX1 (Compaq, 2.53 GHz, 1 Gb RAM) and just one T400P
was
> > encouraging - on the load
> > test with 3 T1s worth of calls we had on average 75% idle CPU.
> >
> > Not so with BOX2 (Dell, single 2.6 GHz Xeon, 1 Gb RAM, 2 T400P) and
BOX3
> > (Dell, dual 2.6 GHz Xeon,
> > 2 Gb RAM, 2 T400P, asterisk/zaptel is built with SMP support).
> >
> > On the similar load test (as with the BOX1) BOX2 was showing 0% idle
CPU
> 70%
> > of the time. Just 3 T1s
> > out of 8.
> >
> > On the load test with just 2 T1s BOX3 was very close to 0% idle on
CPU0,
> > CPU1 was at 95% idle.
> > The process ksoftirqd_CPU0 was close to the top of the 'top',
with
> > /proc/interrupts showing tor2 related
> > numbers growing very fast. We had 2 T1s plugged into the first T400P
> board,
> > with nothing going into the second,
> > but the number of interrupts for the both boards was growing at the
same
> > pace. Here are the interrupts
> > (after the box reboot, so they are not that big as they were) - do
they
> look
> > OK?
> >
> >
> >             CPU0       CPU1       CPU2       CPU3
> >   0:     122556          0          0          0    IO-APIC-edge 
timer
> >   1:          4          0          0          0    IO-APIC-edge
keyboard> >   2:          0          0          0          0          XT-PIC
cascade> >   5:          0          0          0          0   IO-APIC-level
usb-ohci> >   8:          1          0          0          0    IO-APIC-edge  rtc
> >  12:         20          0          0          0    IO-APIC-edge  PS/2
> Mouse
> >  14:         23          0          2          0    IO-APIC-edge  ide0
> >  20:     516930          0          0          0   IO-APIC-level  tor2
> >  24:     516524          0          0          0   IO-APIC-level  tor2
> >  28:      10600          0          0          0   IO-APIC-level  eth0
> >  29:       4837          0          0          0   IO-APIC-level  eth1
> >  30:      24831          0          0          0   IO-APIC-level
aacraid> > NMI:          0          0          0          0
> > LOC:     122430     122429     122429     122428
> > ERR:          0
> > MIS:          0
> >
> > Not sure what went wrong. Any suggestions on how to work with 2 T400P
in
a> > box (without hurting performance)
> > and how to get advantage of SMP for Asterisk would be appreciated.
> >
> > Any known Linux kernel related issues (2.4.20-13.7smp #1 SMP for BOX3
)?
> >
> > Thank you.
> >
> > Alex Zarubin
> >
> >
> >
>
> _______________________________________________
> Asterisk-Users mailing list
> Asterisk-Users@lists.digium.com
> http://lists.digium.com/mailman/listinfo/asterisk-users
>
_______________________________________________
Asterisk-Users mailing list
Asterisk-Users@lists.digium.com
http://lists.digium.com/mailman/listinfo/asterisk-users
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Alex Zarubin

2003-Jun-17 14:54 UTC

head link

[Asterisk-Users] Dual T400P, SMP, performance issues

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Alex Zarubin

2003-Jun-24 17:10 UTC

head link

[Asterisk-Users] Dual T400P, SMP, performance issues

Mark & Oliver,

It is too early to say, but the picture is different now. Our dual CPU,
dual T400P box is up for 4 days, under the load of 10 - 100 simultaneous
PRI -> SIP calls. We installed 2.4.21 #2 SMP (it was still freezing after
that) and, what I think made the difference, recompiled
zaptel-libpri-asterisk
with gcc 3.3.

The problem, on the way, was that asterisk wouldn't start after that. It was
crashing while loading mp3 and lpc10 codecs. We put 'noload' for these
two
into modules.conf - temporary solution, of course.

There are problems, still, with multiple connections at the same time.
Windows
to the box get frozen for a sec, D-channel error messages. The following
messages are dumped into /var/log/messages. What do you think?

Jun 24 18:23:25 mspgate03 kernel:
Jun 24 18:23:25 mspgate03 kernel: wait_on_irq, CPU 1:
Jun 24 18:23:25 mspgate03 kernel: irq:  1 [ 0 0 1 0 ]
Jun 24 18:23:25 mspgate03 kernel: bh:   0 [ 0 0 0 0 ]
Jun 24 18:23:25 mspgate03 kernel: Stack dumps:
Jun 24 18:23:25 mspgate03 kernel: CPU 0:02000000 0000036f 00e14603
18020000 03000010 00006647 008e0200 48030000
Jun 24 18:23:25 mspgate03 kernel:        00000078 001ffa02 5b490300
06000000 000001c7 074e0308 00001afe 01c74d03
Jun 24 18:23:25 mspgate03 kernel:        23020000 d7080000 e1000001
09000000 000001d7 f5030001 04000023 09300207
Jun 24 18:23:25 mspgate03 kernel: Call Trace:    [<f89bd281>]
[<f89bb132>] [<f89bbb47>] [<f89bd281>] [<f89bd281>]
Jun 24 18:23:25 mspgate03 kernel:   [<f89bb132>] [<f89bd281>]
[<f89bd281>] [<f89bb132>] [<f89bbb47>] [<f89e7737>]
Jun 24 18:23:25 mspgate03 kernel:   [<f89aa80a>] [<f89aa80a>]
[<c01feee4>] [<f89e7737>] [<c01f4eae>] [<c010a98e>]
Jun 24 18:23:25 mspgate03 kernel:   [<c020d122>] [<c010abe3>]
[<c020d122>] [<c020d550>] [<c010a98e>] [<c020d550>]
Jun 24 18:23:25 mspgate03 kernel:   [<c010abfe>] [<c01f0919>]
[<c01f0919>] [<c022a1ef>] [<c022a1ef>] [<c022a5f5>]
Jun 24 18:23:25 mspgate03 kernel:   [<f89bd281>] [<f89bd281>]
[<f89bd281>] [<f89bb132>] [<f89bd510>] [<f89e7737>]
Jun 24 18:23:25 mspgate03 kernel:   [<c022a5f5>] [<c01f0ffd>]
[<c01f112e>] [<c01f53c2>] [<c012005b>] [<c010abfe>]
Jun 24 18:23:25 mspgate03 kernel:   [<c015147a>] [<c01509dc>]
[<c0147460>] [<c0147fb8>] [<f89e7737>] [<f89e7737>]
Jun 24 18:23:25 mspgate03 kernel:   [<c01f0998>] [<c01f0fac>]
[<c01f112e>] [<c01f53c2>] [<c0117fce>] [<c0117ef0>]
Jun 24 18:23:25 mspgate03 kernel:   [<c0144a64>] [<c01246db>]
[<c0109023>]
Jun 24 18:23:25 mspgate03 kernel:
Jun 24 18:23:25 mspgate03 kernel: CPU 2:00000000 00000000 00000000
00000000 00000000 00000000 00000000 00000000
Jun 24 18:23:25 mspgate03 kernel:        00000000 00000000 00000000
00000000 00000000 00000000 00000000 00000000
Jun 24 18:23:25 mspgate03 kernel:        00000000 00000000 00000000
00000000 00000000 00000000 00000000 00000000
Jun 24 18:23:25 mspgate03 kernel: Call Trace:
Jun 24 18:23:25 mspgate03 kernel:
Jun 24 18:23:25 mspgate03 kernel: CPU 3:00000070 cce30002 0cd80000
08fa0000 69530000 656c706d 6c616e41 73697379
Jun 24 18:23:25 mspgate03 kernel:        0009a700 46534c00 65746e69
6c6f7072 32657461 6e655f61 0a810063 69530000
Jun 24 18:23:25 mspgate03 kernel:        656c706d 65746e49 6c6f7072
4c657461 39004653 5300000b 6c706d69 66736c65
Jun 24 18:23:25 mspgate03 kernel: Call Trace:
Jun 24 18:23:25 mspgate03 kernel:
Jun 24 18:23:25 mspgate03 kernel: CPU 1:e14d5eac c025c896 00000001
00000001 ffffffff 00000001 c010a7c2 c025c8ab
Jun 24 18:23:25 mspgate03 kernel:        00000000 f2d92124 e14d5f00
c0191104 00000500 00001805 000000bf 00008a01
Jun 24 18:23:25 mspgate03 kernel:        7f1c0300 01000415 1a131100
170f1200 00000000 e14d4000 00000000 00000000
Jun 24 18:23:25 mspgate03 kernel: Call Trace:    [<c010a7c2>]
[<c0191104>] [<c01913d4>] [<c018e1e2>] [<c014c2c7>]
Jun 24 18:23:25 mspgate03 kernel:   [<c0109023>]
Jun 24 18:23:25 mspgate03 kernel:

Thank you.
Alex Zarubin

-----Original Message-----
From: The Traveller [mailto:traveler@xs4all.nl]
Sent: Tuesday, June 17, 2003 3:10 PM
To: asterisk-users@lists.digium.com
Subject: Re: [Asterisk-Users] Dual T400P, SMP, performance issues


On Tue, Jun 17, 2003 at 20:54:39 +0200, The Traveller
wrote:> 
> BTW: As I reported in my previous mail to the list, I've now installed
kernel> 2.4.21-rc2 with ACPI-patch on the box with the E100P.  I've been trying
> very hard to reproduce a freeze with this kernel, but haven't succeededyet.
[...]

Ok, it crashed again, so that wasn't it either.  What I did to trigger
it was using the auto-dialer to loop as many calls to app_datetime out
and then back over the same E-1 as it would take, queueing the calls
to "/var/spool/asterisk/outgoing/" 14 at a time.  It froze at the
first
attempt.  The "good" news is that it produced a visible kernel-panic.
this time.  My guess is that you only don't see it if the console
screensaver has already come on while it happens.

It read something like "Unable to handle kernel paging request" and
happened in the swapper-task.  As usual, it dumped a lot of numbers on the
screen, which I didn't want to write down.

Mark: If you want my help in debugging this, I'll hook it up to a
serial console, trigger the crash and provide you with the exact
panic, together with the ksyms and modules-info to trace it.



    Grtz,

       Oliver
_______________________________________________
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Asterisk-Users@lists.digium.com
http://lists.digium.com/mailman/listinfo/asterisk-users
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Alex Zarubin

2003-Jun-25 14:07 UTC

head link

[Asterisk-Users] Dual T400P, SMP, performance issues

Mark, here is the info you requested. As far as multiple T400P boards
question, I believe this is the most probable reason for this behavior
(we haven't seen it on a single board machines). But in order to
prove it we need 4-5 days of load testing. Hopefully we'll be able
to do it next week.

ksymoops 2.4.4 on i686 2.4.21.  Options used
     -V (default)
     -k /proc/ksyms (default)
     -l /proc/modules (default)
     -o /lib/modules/2.4.21 (specified)
     -m /boot/System.map-2.4.21 (default)
     -i

Jun 24 18:23:25 mspgate03 kernel: wait_on_irq, CPU 1:
Jun 24 18:23:25 mspgate03 kernel: irq:  1 [ 0 0 1 0 ]
Jun 24 18:23:25 mspgate03 kernel: bh:   0 [ 0 0 0 0 ]
Jun 24 18:23:25 mspgate03 kernel: Stack dumps:
Jun 24 18:23:25 mspgate03 kernel: CPU 0:02000000 0000036f 00e14603 18020000
03000010 00006647 008e0200 48030000
Jun 24 18:23:25 mspgate03 kernel:        00000078 001ffa02 5b490300 06000000
000001c7 074e0308 00001afe 01c74d03
Jun 24 18:23:25 mspgate03 kernel:        23020000 d7080000 e1000001 09000000
000001d7 f5030001 04000023 09300207
Jun 24 18:23:25 mspgate03 kernel: Call Trace:    [<f89bd281>]
[<f89bb132>]
[<f89bbb47>] [<f89bd281>] [<f89bd281>]
Jun 24 18:23:25 mspgate03 kernel:   [<f89bb132>] [<f89bd281>]
[<f89bd281>]
[<f89bb132>] [<f89bbb47>] [<f89e7737>]
Jun 24 18:23:25 mspgate03 kernel:   [<f89aa80a>] [<f89aa80a>]
[<c01feee4>]
[<f89e7737>] [<c01f4eae>] [<c010a98e>]
Jun 24 18:23:25 mspgate03 kernel:   [<c020d122>] [<c010abe3>]
[<c020d122>]
[<c020d550>] [<c010a98e>] [<c020d550>]
Jun 24 18:23:25 mspgate03 kernel:   [<c010abfe>] [<c01f0919>]
[<c01f0919>]
[<c022a1ef>] [<c022a1ef>] [<c022a5f5>]
Jun 24 18:23:25 mspgate03 kernel:   [<f89bd281>] [<f89bd281>]
[<f89bd281>]
[<f89bb132>] [<f89bd510>] [<f89e7737>]
Jun 24 18:23:25 mspgate03 kernel:   [<c022a5f5>] [<c01f0ffd>]
[<c01f112e>]
[<c01f53c2>] [<c012005b>] [<c010abfe>]
Jun 24 18:23:25 mspgate03 kernel:   [<c015147a>] [<c01509dc>]
[<c0147460>]
[<c0147fb8>] [<f89e7737>] [<f89e7737>]
Jun 24 18:23:25 mspgate03 kernel:   [<c01f0998>] [<c01f0fac>]
[<c01f112e>]
[<c01f53c2>] [<c0117fce>] [<c0117ef0>]
Jun 24 18:23:25 mspgate03 kernel:   [<c0144a64>] [<c01246db>]
[<c0109023>]
Jun 24 18:23:25 mspgate03 kernel: CPU 2:00000000 00000000 00000000 00000000
00000000 00000000 00000000 00000000
Jun 24 18:23:25 mspgate03 kernel:        00000000 00000000 00000000 00000000
00000000 00000000 00000000 00000000
Jun 24 18:23:25 mspgate03 kernel:        00000000 00000000 00000000 00000000
00000000 00000000 00000000 00000000
Jun 24 18:23:25 mspgate03 kernel: CPU 3:00000070 cce30002 0cd80000 08fa0000
69530000 656c706d 6c616e41 73697379
Jun 24 18:23:25 mspgate03 kernel:        0009a700 46534c00 65746e69 6c6f7072
32657461 6e655f61 0a810063 69530000
Jun 24 18:23:25 mspgate03 kernel:        656c706d 65746e49 6c6f7072 4c657461
39004653 5300000b 6c706d69 66736c65
Jun 24 18:23:25 mspgate03 kernel: CPU 1:e14d5eac c025c896 00000001 00000001
ffffffff 00000001 c010a7c2 c025c8ab
Jun 24 18:23:25 mspgate03 kernel:        00000000 f2d92124 e14d5f00 c0191104
00000500 00001805 000000bf 00008a01
Jun 24 18:23:25 mspgate03 kernel:        7f1c0300 01000415 1a131100 170f1200
00000000 e14d4000 00000000 00000000
Jun 24 18:23:25 mspgate03 kernel: Call Trace:    [<c010a7c2>]
[<c0191104>]
[<c01913d4>] [<c018e1e2>] [<c014c2c7>]
Jun 24 18:23:25 mspgate03 kernel:   [<c0109023>]
Warning (Oops_read): Code line not seen, dumping what data is available

Trace; f89bd281 <[zaptel]zt_process_putaudio_chunk+9a1/b70>
Trace; f89bb132 <[zaptel]zt_process_getaudio_chunk+f2/910>
Trace; f89bbb47 <[zaptel]zt_getbuf_chunk+1f7/4b0>
Trace; f89bd281 <[zaptel]zt_process_putaudio_chunk+9a1/b70>
Trace; f89bd281 <[zaptel]zt_process_putaudio_chunk+9a1/b70>
Trace; f89bb132 <[zaptel]zt_process_getaudio_chunk+f2/910>
Trace; f89bd281 <[zaptel]zt_process_putaudio_chunk+9a1/b70>
Trace; f89bd281 <[zaptel]zt_process_putaudio_chunk+9a1/b70>
Trace; f89bb132 <[zaptel]zt_process_getaudio_chunk+f2/910>
Trace; f89bbb47 <[zaptel]zt_getbuf_chunk+1f7/4b0>
Trace; f89e7737 <[tor2]tor2_intr+847/cb0>
Trace; f89aa80a <[eepro100]speedo_start_xmit+17a/210>
Trace; f89aa80a <[eepro100]speedo_start_xmit+17a/210>
Trace; c01feee4 <qdisc_restart+14/170>
Trace; f89e7737 <[tor2]tor2_intr+847/cb0>
Trace; c01f4eae <dev_queue_xmit+14e/320>
Trace; c010a98e <handle_IRQ_event+5e/90>
Trace; c020d122 <ip_output+102/170>
Trace; c010abe3 <do_IRQ+e3/110>
Trace; c020d122 <ip_output+102/170>
Trace; c020d550 <ip_queue_xmit+3c0/520>
Trace; c010a98e <handle_IRQ_event+5e/90>
Trace; c020d550 <ip_queue_xmit+3c0/520>
Trace; c010abfe <do_IRQ+fe/110>
Trace; c01f0919 <sock_def_readable+39/70>
Trace; c01f0919 <sock_def_readable+39/70>
Trace; c022a1ef <udp_queue_rcv_skb+18f/200>
Trace; c022a1ef <udp_queue_rcv_skb+18f/200>
Trace; c022a5f5 <udp_rcv+165/340>
Trace; f89bd281 <[zaptel]zt_process_putaudio_chunk+9a1/b70>
Trace; f89bd281 <[zaptel]zt_process_putaudio_chunk+9a1/b70>
Trace; f89bd281 <[zaptel]zt_process_putaudio_chunk+9a1/b70>
Trace; f89bb132 <[zaptel]zt_process_getaudio_chunk+f2/910>
Trace; f89bd510 <[zaptel]zt_putbuf_chunk+c0/730>
Trace; f89e7737 <[tor2]tor2_intr+847/cb0>
Trace; c022a5f5 <udp_rcv+165/340>
Trace; c01f0ffd <kfree_skbmem+5d/70>
Trace; c01f112e <__kfree_skb+11e/130>
Trace; c01f53c2 <net_tx_action+62/140>
Trace; c012005b <do_softirq+6b/d0>
Trace; c010abfe <do_IRQ+fe/110>
Trace; c015147a <d_lookup+ba/120>
Trace; c01509dc <dput+1c/160>
Trace; c0147460 <cached_lookup+10/50>
Trace; c0147fb8 <link_path_walk+8f8/a10>
Trace; f89e7737 <[tor2]tor2_intr+847/cb0>
Trace; f89e7737 <[tor2]tor2_intr+847/cb0>
Trace; c01f0998 <sock_def_write_space+48/a0>
Trace; c01f0fac <kfree_skbmem+c/70>
Trace; c01f112e <__kfree_skb+11e/130>
Trace; c01f53c2 <net_tx_action+62/140>
Trace; c0117fce <schedule_timeout+7e/a0>
Trace; c0117ef0 <process_timeout+0/60>
Trace; c0144a64 <sys_stat64+64/70>
Trace; c01246db <sys_nanosleep+11b/18c>
Trace; c0109023 <system_call+33/38>
Trace; c010a7c2 <__global_cli+e2/170>
Trace; c0191104 <change_termios+24/190>
Trace; c01913d4 <set_termios+164/170>
Trace; c018e1e2 <tty_ioctl+372/390>
Trace; c014c2c7 <sys_ioctl+1c7/1fe>
Trace; c0109023 <system_call+33/38>


1 warning issued.  Results may not be reliable.

-----Original Message-----
From: Mark Spencer [mailto:markster@digium.com]
Sent: Wednesday, June 25, 2003 11:11 AM
To: 'asterisk-users@lists.digium.com'
Subject: RE: [Asterisk-Users] Dual T400P, SMP, performance issues


Oooh, how neat!  I wonder if there is some sort of race and that the
kernel is detecting and defeating it somehow.  Will ksymoops on your
machine handle that output?  Maybe we can track it down!

Again, does the problem occur with only one board?  i.e. is the problem
tied to having multiple boards in the machine?

Mark

On Tue, 24 Jun 2003, Alex Zarubin wrote:
> Mark & Oliver,
>
> It is too early to say, but the picture is different now. Our dual CPU,
> dual T400P box is up for 4 days, under the load of 10 - 100 simultaneous
> PRI -> SIP calls. We installed 2.4.21 #2 SMP (it was still freezing
after
> that) and, what I think made the difference, recompiled
> zaptel-libpri-asterisk
> with gcc 3.3.
>
> The problem, on the way, was that asterisk wouldn't start after that.
It
was> crashing while loading mp3 and lpc10 codecs. We put 'noload' for
these two
> into modules.conf - temporary solution, of course.
>
> There are problems, still, with multiple connections at the same time.
> Windows
> to the box get frozen for a sec, D-channel error messages. The following
> messages are dumped into /var/log/messages. What do you think?
>
> ...
>
> Thank you.
> Alex Zarubin
>
> -----Original Message-----
> From: The Traveller [mailto:traveler@xs4all.nl]
> Sent: Tuesday, June 17, 2003 3:10 PM
> To: asterisk-users@lists.digium.com
> Subject: Re: [Asterisk-Users] Dual T400P, SMP, performance issues
>
>
> On Tue, Jun 17, 2003 at 20:54:39 +0200, The Traveller wrote:
> >
> > BTW: As I reported in my previous mail to the list, I've now
installed
> kernel
> > 2.4.21-rc2 with ACPI-patch on the box with the E100P.  I've been
trying
> > very hard to reproduce a freeze with this kernel, but haven't
succeeded
> yet.
> [...]
>
> Ok, it crashed again, so that wasn't it either.  What I did to trigger
> it was using the auto-dialer to loop as many calls to app_datetime out
> and then back over the same E-1 as it would take, queueing the calls
> to "/var/spool/asterisk/outgoing/" 14 at a time.  It froze at the
first
> attempt.  The "good" news is that it produced a visible
kernel-panic.
> this time.  My guess is that you only don't see it if the console
> screensaver has already come on while it happens.
>
> It read something like "Unable to handle kernel paging request"
and
> happened in the swapper-task.  As usual, it dumped a lot of numbers on the
> screen, which I didn't want to write down.
>
> Mark: If you want my help in debugging this, I'll hook it up to a
> serial console, trigger the crash and provide you with the exact
> panic, together with the ksyms and modules-info to trace it.
>
>
>
>     Grtz,
>
>        Oliver
> _______________________________________________
> Asterisk-Users mailing list
> Asterisk-Users@lists.digium.com
> http://lists.digium.com/mailman/listinfo/asterisk-users
>
_______________________________________________
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Alex Zarubin

2003-Jun-26 13:34 UTC

head link

[Asterisk-Users] Dual T400P, SMP, performance issues

Here is info on the kernel panic with the high volume (110+) of calls.
Same configuration as before. Comments would be appreciated.

ksymoops 2.4.4 on i686 2.4.21.  Options used
     -V (default)
     -k /proc/ksyms (default)
     -l /proc/modules (default)
     -o /lib/modules/2.4.21 (specified)
     -m /boot/System.map-2.4.21 (default)
     -i

eax: 00000100 ebx: 00000000 ecx: 00000000 edx: f71b5a14 esi: 00000002 edi:
f71b4000 ebp: f71b4000 esp: f71b59ec ds: 0018 es: 0018 ss: 0018
Process irqbalance (pid: 713, stackpage=f71b5000)
Stack:  6e6d6c6b 7271706f 76757473 7a797877 00000001 c0115ef4 f71b4000
c02578fd f71b5a14 00000001 00000000 00000003 c0115ef4 f71b4000 f71b4000
00000000 f71b0018 c0110018 ffffffef c0114546 00000010 00000286 c0114470 
Call Trace:     [<c0115ef4>] [<c0115ef4>] [<c0110018>]
[<c0114546>]
[<c0114470>] [<c011bc88>] [<c01144c0>] [<c0114470>]
[<c011b2d5>]
[<c011eae2>] [<c011badb>] [<c011bc88>] [<c0116ff0>]
[<c010960a>]
[<c0115ef4>] [<c01173a8>] [<f89e7737>] [<f89fb1e0>]
[<f89fb1e0>]
[<c0117000>] [<c0109114>] [<c0115ef4>] [<c010abe3>]
[<f897a8c0>]
[<f897a8c0>] [<c0110018>] [<c0124345>] [<c012042b>]
[<c01202d1>]
[<c012005b>] [<c010abfe>] [<c015e751>] [<c0147513>]
[<c01479f1>]
[<f89e7737>] [<f89fb1e0>] [<c010e1b6>] [<c0123fc0>]
[<c01482ab>]
[<c01487c4>] [<c012042b>] [<c01202d1>] [<c012005b>]
[<c010abfe>]
[<c013c606>] [<c01471ae>] [<c013c953>] [<c0109023>]
Code: 89 1d b0 e0 ff ff ff 80 04 48 33 c0 eb 02 f3 90 a1 88 f3 30  
Using defaults from ksymoops -t elf32-i386 -a i386

Trace; c0115ef4 <end_level_ioapic_irq+24/f0>
Trace; c0115ef4 <end_level_ioapic_irq+24/f0>
Trace; c0110018 <pci_conf2_write+88/f0>
Trace; c0114546 <.text.lock.smp+19/23>
Trace; c0114470 <stop_this_cpu+0/40>
Trace; c011bc88 <printk+128/140>
Trace; c01144c0 <smp_send_stop+10/30>
Trace; c0114470 <stop_this_cpu+0/40>
Trace; c011b2d5 <panic+85/180>
Trace; c011eae2 <do_exit+32/2d0>
Trace; c011badb <call_console_drivers+eb/100>
Trace; c011bc88 <printk+128/140>
Trace; c0116ff0 <bust_spinlocks+50/60>
Trace; c010960a <die+5a/80>
Trace; c0115ef4 <end_level_ioapic_irq+24/f0>
Trace; c01173a8 <do_page_fault+3a8/4db>
Trace; f89e7737 <END_OF_CODE+309d4/????>
Trace; f89fb1e0 <END_OF_CODE+4447d/????>
Trace; f89fb1e0 <END_OF_CODE+4447d/????>
Trace; c0117000 <do_page_fault+0/4db>
Trace; c0109114 <error_code+34/3c>
Trace; c0115ef4 <end_level_ioapic_irq+24/f0>
Trace; c010abe3 <do_IRQ+e3/110>
Trace; f897a8c0 <[usb-ohci]rh_int_timer_do+0/70>
Trace; f897a8c0 <[usb-ohci]rh_int_timer_do+0/70>
Trace; c0110018 <pci_conf2_write+88/f0>
Trace; c0124345 <timer_bh+2b5/3f0>
Trace; c012042b <bh_action+4b/80>
Trace; c01202d1 <tasklet_hi_action+61/a0>
Trace; c012005b <do_softirq+6b/d0>
Trace; c010abfe <do_IRQ+fe/110>
Trace; c015e751 <proc_lookup+51/c0>
Trace; c0147513 <real_lookup+73/100>
Trace; c01479f1 <link_path_walk+331/a10>
Trace; f89e7737 <END_OF_CODE+309d4/????>
Trace; f89fb1e0 <END_OF_CODE+4447d/????>
Trace; c010e1b6 <timer_interrupt+e6/170>
Trace; c0123fc0 <update_process_times+20/a0>
Trace; c01482ab <path_lookup+1b/30>
Trace; c01487c4 <open_namei+94/650>
Trace; c012042b <bh_action+4b/80>
Trace; c01202d1 <tasklet_hi_action+61/a0>
Trace; c012005b <do_softirq+6b/d0>
Trace; c010abfe <do_IRQ+fe/110>
Trace; c013c606 <filp_open+36/60>
Trace; c01471ae <getname+5e/a0>
Trace; c013c953 <sys_open+33/a0>
Trace; c0109023 <system_call+33/38>
Code;  00000000 Before first symbol
00000000 <_EIP>:
Code;  00000000 Before first symbol
   0:   89 1d b0 e0 ff ff         mov    %ebx,0xffffe0b0
Code;  00000006 Before first symbol
   6:   ff 80 04 48 33 c0         incl   0xc0334804(%eax)
Code;  0000000c Before first symbol
   c:   eb 02                     jmp    10 <_EIP+0x10> 00000010 Before
first symbol
Code;  0000000e Before first symbol
   e:   f3 90                     repz nop 
Code;  00000010 Before first symbol
  10:   a1 88 f3 30 00            mov    0x30f388,%eax

Thank you.
Alex Zarubin


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