I get a very consistent crash when sending code via UDP with the following .csd. 
If I change the instr number from 8800 to 8799 or lower, there is no crash.
Any clue about the reason?

# udp.csd
<CsoundSynthesizer>
<CsOptions>
-odac
--port=9100

</CsOptions>

<CsInstruments>
sr     = 44100
ksmps  = 64
nchnls = 2
0dbfs  = 1

instr 8800
    turnoff
endin

</CsInstruments>

<CsScore>
</CsScore>
</CsoundSynthesizer>

$ csound udp.csd

# baz.inc
instr baz
    println "baz"
    turnoff
endin

$ cat baz.inc | nc -u localhost 9100

Yes, with numbered instruments there is no crash

Nothing comes to mind immediately, but have you tried using a number instrument instrument instead of "baz" and see if it makes any difference?

Prof. Victor Lazzarini

Maynooth University

Ireland

On Mar 27, 2021, at 1:50 PM, Eduardo Moguillansky <eduardo.moguillansky@gmail.com> wrote:



*Warning*

This email originated from outside of Maynooth University's Mail System. Do not reply, click links or open attachments unless you recognise the sender and know the content is safe.

I get a very consistent crash when sending code via UDP with the following .csd. 
If I change the instr number from 8800 to 8799 or lower, there is no crash.
Any clue about the reason?

# udp.csd
<CsoundSynthesizer>
<CsOptions>
-odac
--port=9100

</CsOptions>

<CsInstruments>
sr     = 44100
ksmps  = 64
nchnls = 2
0dbfs  = 1

instr 8800
    turnoff
endin

</CsInstruments>

<CsScore>
</CsScore>
</CsoundSynthesizer>

$ csound udp.csd

# baz.inc
instr baz
    println "baz"
    turnoff
endin

$ cat baz.inc | nc -u localhost 9100

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I tested here on Mac (10.14.6, Intel) and did not get any crash.  I
had just pulled the latest from develop and rebuilt csound prior to
testing.

What version of Csound are you using?

On Sat, Mar 27, 2021 at 10:15 AM Eduardo Moguillansky
 wrote:
>
> Yes, with numbered instruments there is no crash
>
> On 27.03.21 15:06, Victor Lazzarini wrote:
>
> Nothing comes to mind immediately, but have you tried using a number instrument instrument instead of "baz" and see if it makes any difference?
>
> Prof. Victor Lazzarini
> Maynooth University
> Ireland
>
> On Mar 27, 2021, at 1:50 PM, Eduardo Moguillansky  wrote:
>
> 
> *Warning* This email originated from outside of Maynooth University's Mail System. Do not reply, click links or open attachments unless you recognise the sender and know the content is safe.
>
> I get a very consistent crash when sending code via UDP with the following .csd.
> If I change the instr number from 8800 to 8799 or lower, there is no crash.
> Any clue about the reason?
>
> # udp.csd
> 
> 
> -odac
> --port=9100
>
> 
>
> 
> sr     = 44100
> ksmps  = 64
> nchnls = 2
> 0dbfs  = 1
>
> instr 8800
>     turnoff
> endin
>
> 
>
> 
> 
> 
>
> $ csound udp.csd
>
> # baz.inc
> instr baz
>     println "baz"
>     turnoff
> endin
>
> $ cat baz.inc | nc -u localhost 9100
>
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>
> Csound mailing list Csound@listserv.heanet.ie https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND Send bugs reports to https://github.com/csound/csound/issues Discussions of bugs and features can be posted here
>
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I tested on linux, --Csound version 6.15 (double samples) Mar 27 2021

On 27.03.21 15:22, Steven Yi wrote:
> I tested here on Mac (10.14.6, Intel) and did not get any crash.  I
> had just pulled the latest from develop and rebuilt csound prior to
> testing.
>
> What version of Csound are you using?
>
> On Sat, Mar 27, 2021 at 10:15 AM Eduardo Moguillansky
>  wrote:
>> Yes, with numbered instruments there is no crash
>>
>> On 27.03.21 15:06, Victor Lazzarini wrote:
>>
>> Nothing comes to mind immediately, but have you tried using a number instrument instrument instead of "baz" and see if it makes any difference?
>>
>> Prof. Victor Lazzarini
>> Maynooth University
>> Ireland
>>
>> On Mar 27, 2021, at 1:50 PM, Eduardo Moguillansky  wrote:
>>
>> 
>> *Warning* This email originated from outside of Maynooth University's Mail System. Do not reply, click links or open attachments unless you recognise the sender and know the content is safe.
>>
>> I get a very consistent crash when sending code via UDP with the following .csd.
>> If I change the instr number from 8800 to 8799 or lower, there is no crash.
>> Any clue about the reason?
>>
>> # udp.csd
>> 
>> 
>> -odac
>> --port=9100
>>
>> 
>>
>> 
>> sr     = 44100
>> ksmps  = 64
>> nchnls = 2
>> 0dbfs  = 1
>>
>> instr 8800
>>      turnoff
>> endin
>>
>> 
>>
>> 
>> 
>> 
>>
>> $ csound udp.csd
>>
>> # baz.inc
>> instr baz
>>      println "baz"
>>      turnoff
>> endin
>>
>> $ cat baz.inc | nc -u localhost 9100
>>
>> Csound mailing list Csound@listserv.heanet.ie https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND Send bugs reports to https://github.com/csound/csound/issues Discussions of bugs and features can be posted here
>>
>> Csound mailing list Csound@listserv.heanet.ie https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND Send bugs reports to https://github.com/csound/csound/issues Discussions of bugs and features can be posted here
>>
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On Ubuntu Studio, I also see this problem with:

--Csound version 6.14 (double samples) Apr 25 2020

[commit: fb2e61cf2bea6caf5117c30c120430b0fa4ee56c]

I tested on linux, --Csound version 6.15 (double samples) Mar 27 2021

On 27.03.21 15:22, Steven Yi wrote:

I tested here on Mac (10.14.6, Intel) and did not get any crash.  I
had just pulled the latest from develop and rebuilt csound prior to
testing.

What version of Csound are you using?

On Sat, Mar 27, 2021 at 10:15 AM Eduardo Moguillansky
<eduardo.moguillansky@gmail.com> wrote:

Yes, with numbered instruments there is no crash

On 27.03.21 15:06, Victor Lazzarini wrote:

Nothing comes to mind immediately, but have you tried using a number instrument instrument instead of "baz" and see if it makes any difference?

Prof. Victor Lazzarini
Maynooth University
Ireland

On Mar 27, 2021, at 1:50 PM, Eduardo Moguillansky <eduardo.moguillansky@gmail.com> wrote:


*Warning* This email originated from outside of Maynooth University's Mail System. Do not reply, click links or open attachments unless you recognise the sender and know the content is safe.

I get a very consistent crash when sending code via UDP with the following .csd.
If I change the instr number from 8800 to 8799 or lower, there is no crash.
Any clue about the reason?

# udp.csd
<CsoundSynthesizer>
<CsOptions>
-odac
--port=9100

</CsOptions>

<CsInstruments>
sr     = 44100
ksmps  = 64
nchnls = 2
0dbfs  = 1

instr 8800
     turnoff
endin

</CsInstruments>

<CsScore>
</CsScore>
</CsoundSynthesizer>

$ csound udp.csd

# baz.inc
instr baz
     println "baz"
     turnoff
endin

$ cat baz.inc | nc -u localhost 9100

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I rebuilt on Linux Mint with latest from develop and can reproduce the
issue. I rebuilt a debug build and with gdb has this:

writing 512 sample blks of 64-bit floats to dac
SECTION 1:
    instr baz uses instrument number 1

Thread 2 "csound" received signal SIGSEGV, Segmentation fault.
[Switching to Thread 0x7ffff599d700 (LWP 9311)]
0x00007ffff7f132a8 in named_instr_assign_numbers (csound=0x55555555b2a0,
    engineState=0x7ffff0031820)
    at /home/steven/work/csound/Engine/csound_orc_compile.c:1190
1190          while ((!engineState->instrtxtp[num] ||
(gdb) bt
#0  0x00007ffff7f132a8 in named_instr_assign_numbers
    (csound=0x55555555b2a0, engineState=0x7ffff0031820)
    at /home/steven/work/csound/Engine/csound_orc_compile.c:1190
#1  0x00007ffff7f149ed in csoundCompileTreeInternal
    (csound=0x55555555b2a0, root=0x7ffff00317c0, async=1)
    at /home/steven/work/csound/Engine/csound_orc_compile.c:1693
#2  0x00007ffff7f155fd in csoundCompileOrcInternal
    (csound=0x55555555b2a0, str=0x7ffff509c020 "instr baz\n    println
\"baz\"\n    turnoff\nendin\n \n", async=1)
    at /home/steven/work/csound/Engine/csound_orc_compile.c:1934
#3  0x00007ffff7e0f234 in csoundCompileOrcAsync
    (csound=0x55555555b2a0, str=0x7ffff509c020 "instr baz\n    println
\"baz\"\n    turnoff\nendin\n \n") at
/home/steven/work/csound/Top/threadsafe.c:489
#4  0x00007ffff7e103dc in udp_recv (pdata=0x555555797180)
    at /home/steven/work/csound/Top/server.c:213
#5  0x00007ffff7bc9609 in start_thread (arg=)
    at pthread_create.c:477
#6  0x00007ffff7af0293 in clone ()
    at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Not sure why that would be a problem on Linux but didn't happen on
Mac.  I did double check on Mac and realized that my first test was
off (nc required 127.0.0.1 instead of localhost) but the results was
the same with no crash.



On Sat, Mar 27, 2021 at 11:15 AM Guillermo Senna  wrote:
>
> On Ubuntu Studio, I also see this problem with:
>
> --Csound version 6.14 (double samples) Apr 25 2020
>
> [commit: fb2e61cf2bea6caf5117c30c120430b0fa4ee56c]
>
>
> On 27/3/21 11:34, Eduardo Moguillansky wrote:
>
> I tested on linux, --Csound version 6.15 (double samples) Mar 27 2021
>
> On 27.03.21 15:22, Steven Yi wrote:
>
> I tested here on Mac (10.14.6, Intel) and did not get any crash.  I
> had just pulled the latest from develop and rebuilt csound prior to
> testing.
>
> What version of Csound are you using?
>
> On Sat, Mar 27, 2021 at 10:15 AM Eduardo Moguillansky
>  wrote:
>
> Yes, with numbered instruments there is no crash
>
> On 27.03.21 15:06, Victor Lazzarini wrote:
>
> Nothing comes to mind immediately, but have you tried using a number instrument instrument instead of "baz" and see if it makes any difference?
>
> Prof. Victor Lazzarini
> Maynooth University
> Ireland
>
> On Mar 27, 2021, at 1:50 PM, Eduardo Moguillansky  wrote:
>
> 
> *Warning* This email originated from outside of Maynooth University's Mail System. Do not reply, click links or open attachments unless you recognise the sender and know the content is safe.
>
> I get a very consistent crash when sending code via UDP with the following .csd.
> If I change the instr number from 8800 to 8799 or lower, there is no crash.
> Any clue about the reason?
>
> # udp.csd
> 
> 
> -odac
> --port=9100
>
> 
>
> 
> sr     = 44100
> ksmps  = 64
> nchnls = 2
> 0dbfs  = 1
>
> instr 8800
>      turnoff
> endin
>
> 
>
> 
> 
> 
>
> $ csound udp.csd
>
> # baz.inc
> instr baz
>      println "baz"
>      turnoff
> endin
>
> $ cat baz.inc | nc -u localhost 9100
>
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>
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>
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>
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> Discussions of bugs and features can be posted here
>
>
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> Discussions of bugs and features can be posted here
>
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This does not seem related to UDPr. I can reproduce a similar crash using ctcsound, so it might be some kind of run condition when assigning numbers to named instruments.

import ctcsound
orc = """
sr = 44100
ksmps = 64
0dbfs = 1

instr 8700
    turnoff
endin

"""

csound = ctcsound.Csound()
options = ["-odac"]
for opt in options:
    csound.setOption(opt)
csound.compileOrc(orc)
csound.start()
pt = ctcsound.CsoundPerformanceThread(csound.csound())
pt.play()

for i in range(10):
    csound.compileOrc(fr'''
    instr foo{i}
        turnoff
    endin
    ''')

I rebuilt on Linux Mint with latest from develop and can reproduce the
issue. I rebuilt a debug build and with gdb has this:

writing 512 sample blks of 64-bit floats to dac
SECTION 1:
    instr baz uses instrument number 1

Thread 2 "csound" received signal SIGSEGV, Segmentation fault.
[Switching to Thread 0x7ffff599d700 (LWP 9311)]
0x00007ffff7f132a8 in named_instr_assign_numbers (csound=0x55555555b2a0,
    engineState=0x7ffff0031820)
    at /home/steven/work/csound/Engine/csound_orc_compile.c:1190
1190          while ((!engineState->instrtxtp[num] ||
(gdb) bt
#0  0x00007ffff7f132a8 in named_instr_assign_numbers
    (csound=0x55555555b2a0, engineState=0x7ffff0031820)
    at /home/steven/work/csound/Engine/csound_orc_compile.c:1190
#1  0x00007ffff7f149ed in csoundCompileTreeInternal
    (csound=0x55555555b2a0, root=0x7ffff00317c0, async=1)
    at /home/steven/work/csound/Engine/csound_orc_compile.c:1693
#2  0x00007ffff7f155fd in csoundCompileOrcInternal
    (csound=0x55555555b2a0, str=0x7ffff509c020 "instr baz\n    println
\"baz\"\n    turnoff\nendin\n \n", async=1)
    at /home/steven/work/csound/Engine/csound_orc_compile.c:1934
#3  0x00007ffff7e0f234 in csoundCompileOrcAsync
    (csound=0x55555555b2a0, str=0x7ffff509c020 "instr baz\n    println
\"baz\"\n    turnoff\nendin\n \n") at
/home/steven/work/csound/Top/threadsafe.c:489
#4  0x00007ffff7e103dc in udp_recv (pdata=0x555555797180)
    at /home/steven/work/csound/Top/server.c:213
#5  0x00007ffff7bc9609 in start_thread (arg=<optimized out>)
    at pthread_create.c:477
#6  0x00007ffff7af0293 in clone ()
    at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Not sure why that would be a problem on Linux but didn't happen on
Mac.  I did double check on Mac and realized that my first test was
off (nc required 127.0.0.1 instead of localhost) but the results was
the same with no crash.



On Sat, Mar 27, 2021 at 11:15 AM Guillermo Senna <gsenna@gmail.com> wrote:

On Ubuntu Studio, I also see this problem with:

--Csound version 6.14 (double samples) Apr 25 2020

[commit: fb2e61cf2bea6caf5117c30c120430b0fa4ee56c]


On 27/3/21 11:34, Eduardo Moguillansky wrote:

I tested on linux, --Csound version 6.15 (double samples) Mar 27 2021

On 27.03.21 15:22, Steven Yi wrote:

I tested here on Mac (10.14.6, Intel) and did not get any crash.  I
had just pulled the latest from develop and rebuilt csound prior to
testing.

What version of Csound are you using?

On Sat, Mar 27, 2021 at 10:15 AM Eduardo Moguillansky
<eduardo.moguillansky@gmail.com> wrote:

Yes, with numbered instruments there is no crash

On 27.03.21 15:06, Victor Lazzarini wrote:

Nothing comes to mind immediately, but have you tried using a number instrument instrument instead of "baz" and see if it makes any difference?

Prof. Victor Lazzarini
Maynooth University
Ireland

On Mar 27, 2021, at 1:50 PM, Eduardo Moguillansky <eduardo.moguillansky@gmail.com> wrote:


*Warning* This email originated from outside of Maynooth University's Mail System. Do not reply, click links or open attachments unless you recognise the sender and know the content is safe.

I get a very consistent crash when sending code via UDP with the following .csd.
If I change the instr number from 8800 to 8799 or lower, there is no crash.
Any clue about the reason?

# udp.csd
<CsoundSynthesizer>
<CsOptions>
-odac
--port=9100

</CsOptions>

<CsInstruments>
sr     = 44100
ksmps  = 64
nchnls = 2
0dbfs  = 1

instr 8800
     turnoff
endin

</CsInstruments>

<CsScore>
</CsScore>
</CsoundSynthesizer>

$ csound udp.csd

# baz.inc
instr baz
     println "baz"
     turnoff
endin

$ cat baz.inc | nc -u localhost 9100

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That’s what I suspected. 
========================
Prof. Victor Lazzarini
Maynooth University
Ireland

> On 27 Mar 2021, at 15:58, Eduardo Moguillansky  wrote:
> 
> This does not seem related to UDPr. I can reproduce a similar crash using ctcsound, so it might be some kind of run condition when assigning numbers to named instruments.
> 
> import ctcsound
> orc = """
> sr = 44100
> ksmps = 64
> 0dbfs = 1
> 
> instr 8700
>     turnoff
> endin
> 
> """
> 
> csound = ctcsound.Csound()
> options = ["-odac"]
> for opt in options:
>     csound.setOption(opt)
> csound.compileOrc(orc)
> csound.start()
> pt = ctcsound.CsoundPerformanceThread(csound.csound())
> pt.play()
> 
> for i in range(10):
>     csound.compileOrc(fr'''
>     instr foo{i}
>         turnoff
>     endin
>     ''')
> 
> 
> On 27.03.21 16:38, Steven Yi wrote:
>> I rebuilt on Linux Mint with latest from develop and can reproduce the
>> issue. I rebuilt a debug build and with gdb has this:
>> 
>> writing 512 sample blks of 64-bit floats to dac
>> SECTION 1:
>>     instr baz uses instrument number 1
>> 
>> Thread 2 "csound" received signal SIGSEGV, Segmentation fault.
>> [Switching to Thread 0x7ffff599d700 (LWP 9311)]
>> 0x00007ffff7f132a8 in named_instr_assign_numbers (csound=0x55555555b2a0,
>>     engineState=0x7ffff0031820)
>>     at /home/steven/work/csound/Engine/csound_orc_compile.c:1190
>> 1190          while ((!engineState->instrtxtp[num] ||
>> (gdb) bt
>> #0  0x00007ffff7f132a8 in named_instr_assign_numbers
>>     (csound=0x55555555b2a0, engineState=0x7ffff0031820)
>>     at /home/steven/work/csound/Engine/csound_orc_compile.c:1190
>> #1  0x00007ffff7f149ed in csoundCompileTreeInternal
>>     (csound=0x55555555b2a0, root=0x7ffff00317c0, async=1)
>>     at /home/steven/work/csound/Engine/csound_orc_compile.c:1693
>> #2  0x00007ffff7f155fd in csoundCompileOrcInternal
>>     (csound=0x55555555b2a0, str=0x7ffff509c020 "instr baz\n    println
>> \"baz\"\n    turnoff\nendin\n \n", async=1)
>>     at /home/steven/work/csound/Engine/csound_orc_compile.c:1934
>> #3  0x00007ffff7e0f234 in csoundCompileOrcAsync
>>     (csound=0x55555555b2a0, str=0x7ffff509c020 "instr baz\n    println
>> \"baz\"\n    turnoff\nendin\n \n") at
>> /home/steven/work/csound/Top/threadsafe.c:489
>> #4  0x00007ffff7e103dc in udp_recv (pdata=0x555555797180)
>>     at /home/steven/work/csound/Top/server.c:213
>> #5  0x00007ffff7bc9609 in start_thread (arg=)
>>     at pthread_create.c:477
>> #6  0x00007ffff7af0293 in clone ()
>>     at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
>> 
>> Not sure why that would be a problem on Linux but didn't happen on
>> Mac.  I did double check on Mac and realized that my first test was
>> off (nc required 127.0.0.1 instead of localhost) but the results was
>> the same with no crash.
>> 
>> 
>> 
>> On Sat, Mar 27, 2021 at 11:15 AM Guillermo Senna 
>> 
>>  wrote:
>> 
>>> On Ubuntu Studio, I also see this problem with:
>>> 
>>> --Csound version 6.14 (double samples) Apr 25 2020
>>> 
>>> [commit: fb2e61cf2bea6caf5117c30c120430b0fa4ee56c]
>>> 
>>> 
>>> On 27/3/21 11:34, Eduardo Moguillansky wrote:
>>> 
>>> I tested on linux, --Csound version 6.15 (double samples) Mar 27 2021
>>> 
>>> On 27.03.21 15:22, Steven Yi wrote:
>>> 
>>> I tested here on Mac (10.14.6, Intel) and did not get any crash.  I
>>> had just pulled the latest from develop and rebuilt csound prior to
>>> testing.
>>> 
>>> What version of Csound are you using?
>>> 
>>> On Sat, Mar 27, 2021 at 10:15 AM Eduardo Moguillansky
>>> 
>>> 
>>>  wrote:
>>> 
>>> Yes, with numbered instruments there is no crash
>>> 
>>> On 27.03.21 15:06, Victor Lazzarini wrote:
>>> 
>>> Nothing comes to mind immediately, but have you tried using a number instrument instrument instead of "baz" and see if it makes any difference?
>>> 
>>> Prof. Victor Lazzarini
>>> Maynooth University
>>> Ireland
>>> 
>>> On Mar 27, 2021, at 1:50 PM, Eduardo Moguillansky 
>>> 
>>>  wrote:
>>> 
>>> 
>>> *Warning* This email originated from outside of Maynooth University's Mail System. Do not reply, click links or open attachments unless you recognise the sender and know the content is safe.
>>> 
>>> I get a very consistent crash when sending code via UDP with the following .csd.
>>> If I change the instr number from 8800 to 8799 or lower, there is no crash.
>>> Any clue about the reason?
>>> 
>>> # udp.csd
>>> 
>>> 
>>> -odac
>>> --port=9100
>>> 
>>> 
>>> 
>>> 
>>> sr     = 44100
>>> ksmps  = 64
>>> nchnls = 2
>>> 0dbfs  = 1
>>> 
>>> instr 8800
>>>      turnoff
>>> endin
>>> 
>>> 
>>> 
>>> 
>>> 
>>> 
>>> 
>>> $ csound udp.csd
>>> 
>>> # baz.inc
>>> instr baz
>>>      println "baz"
>>>      turnoff
>>> endin
>>> 
>>> $ cat baz.inc | nc -u localhost 9100
>>> 
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>> Csound mailing list
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>> Send bugs reports to
>>         
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>> Discussions of bugs and features can be posted here
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