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Syntax Error window locks up image

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jrm

Syntax Error window locks up image

What causes a window like this to appear?

Why does it lock up the image?

The problem occurred in an image that was running unattended using #Delay to run a method every hour. The application is in development but it has been running on schedule for a month or so without any problems.

I do save and restart the image occasionally.

jrm

SqueakSyntaxError.png (139K) Download Attachment

marcel.taeumel

Re: Syntax Error window locks up image

Hi John-Reed,

can you tell us more about that method your are running every hour?

Syntax errors are as tricky as debuggers. They actually use a debugger internally to interrupt the current (i.e. the compiler's/parser's) control flow and offer interactive means to fix syntax to then continue compilation.

Considering interactive syntax correction, I am not sure whether compilation is safe in processes other than the UI process.

Did you try hitting [CMD]+[Dot] in that case?

Best,

Marcel

Am 12.02.2021 06:00:11 schrieb John-Reed Maffeo <[hidden email]>:

What causes a window like this to appear?
Why does it lock up the image?
The problem occurred in an image that was running unattended using #Delay to run a method every hour. The application is in development but it has been running on schedule for a month or so without any problems.

I do save and restart the image occasionally.

--
jrm

timrowledge

Re: Syntax Error window locks up image

> On 2021-02-12, at 12:33 AM, Marcel Taeumel <[hidden email]> wrote:
>
> Hi John-Reed,
>
> can you tell us more about that method your are running every hour?

My first thought on seeing the screenshot was that the source file is mucked up somehow; looks like it was trying to compile some part of the method header that ought to be ignored.

I remember in the far distant past having problems of that sort when Windows got its nsty little fingers in the pie and converted Rc to CRLF and thus broke all the source pointers.

tim
--
tim Rowledge; [hidden email]; http://www.rowledge.org/tim
Useful random insult:- A room temperature IQ.

jrm

Re: Syntax Error window locks up image

In reply to this post by marcel.taeumel

CMD]+[Dot] interrupt was the first thing I tried.

At this point it is not repeatable so I don't think there is anything I can do other that keep an eye out for it.

the method that is run every hour is setup to run a method to do some work and then spawn a block with an hour delay which runs the method again when the delay elapses.

-jrm

On Fri, Feb 12, 2021 at 1:33 AM Marcel Taeumel <[hidden email]> wrote:

Hi John-Reed,

can you tell us more about that method your are running every hour?

Syntax errors are as tricky as debuggers. They actually use a debugger internally to interrupt the current (i.e. the compiler's/parser's) control flow and offer interactive means to fix syntax to then continue compilation.

Considering interactive syntax correction, I am not sure whether compilation is safe in processes other than the UI process.

Did you try hitting [CMD]+[Dot] in that case?

Best,
Marcel

Am 12.02.2021 06:00:11 schrieb John-Reed Maffeo <[hidden email]>:

What causes a window like this to appear?
Why does it lock up the image?
The problem occurred in an image that was running unattended using #Delay to run a method every hour. The application is in development but it has been running on schedule for a month or so without any problems.

I do save and restart the image occasionally.

--
jrm

John-Reed Maffeo

marcel.taeumel

Re: Syntax Error window locks up image

> the method that is run every hour is setup to run a method to

> do some work and then spawn a block with an hour delay

> which runs the method again when the delay elapses.

Ah, so you do not compile code in that method. Hmm...

Am 13.02.2021 17:58:50 schrieb John-Reed Maffeo <[hidden email]>:

CMD]+[Dot] interrupt was the first thing I tried.

At this point it is not repeatable so I don't think there is anything I can do other that keep an eye out for it.

the method that is run every hour is setup to run a method to do some work and then spawn a block with an hour delay which runs the method again when the delay elapses.
-jrm

On Fri, Feb 12, 2021 at 1:33 AM Marcel Taeumel <[hidden email]> wrote:
Hi John-Reed,

can you tell us more about that method your are running every hour?

Syntax errors are as tricky as debuggers. They actually use a debugger internally to interrupt the current (i.e. the compiler's/parser's) control flow and offer interactive means to fix syntax to then continue compilation.

Considering interactive syntax correction, I am not sure whether compilation is safe in processes other than the UI process.

Did you try hitting [CMD]+[Dot] in that case?

Best,
Marcel

Am 12.02.2021 06:00:11 schrieb John-Reed Maffeo <[hidden email]>:

What causes a window like this to appear?
Why does it lock up the image?
The problem occurred in an image that was running unattended using #Delay to run a method every hour. The application is in development but it has been running on schedule for a month or so without any problems.

I do save and restart the image occasionally.

--
jrm

--
John-Reed Maffeo

marcel.taeumel

Re: Syntax Error window locks up image

I just noticed "Squeak 5.2" in that screenshot. Yes, we fixed that issue in 5.3 and restart all those processes through the release builder. That particular compiled method in the screenshot was apparently very old and out-of-sync with the .sources file.

http://forum.world.st/The-Trunk-Kernel-mt-1211-mcz-td5093956.html

http://forum.world.st/The-Trunk-Kernel-eem-1273-mcz-td5105160.html

Best,

Marcel

Am 16.02.2021 15:54:50 schrieb Marcel Taeumel <[hidden email]>:
> the method that is run every hour is setup to run a method to
> do some work and then spawn a block with an hour delay
> which runs the method again when the delay elapses.

Ah, so you do not compile code in that method. Hmm...

Am 13.02.2021 17:58:50 schrieb John-Reed Maffeo <[hidden email]>:

CMD]+[Dot] interrupt was the first thing I tried.

At this point it is not repeatable so I don't think there is anything I can do other that keep an eye out for it.

the method that is run every hour is setup to run a method to do some work and then spawn a block with an hour delay which runs the method again when the delay elapses.
-jrm

On Fri, Feb 12, 2021 at 1:33 AM Marcel Taeumel <[hidden email]> wrote:
Hi John-Reed,

can you tell us more about that method your are running every hour?

Syntax errors are as tricky as debuggers. They actually use a debugger internally to interrupt the current (i.e. the compiler's/parser's) control flow and offer interactive means to fix syntax to then continue compilation.

Considering interactive syntax correction, I am not sure whether compilation is safe in processes other than the UI process.

Did you try hitting [CMD]+[Dot] in that case?

Best,
Marcel

Am 12.02.2021 06:00:11 schrieb John-Reed Maffeo <[hidden email]>:

What causes a window like this to appear?
Why does it lock up the image?
The problem occurred in an image that was running unattended using #Delay to run a method every hour. The application is in development but it has been running on schedule for a month or so without any problems.

I do save and restart the image occasionally.

--
jrm

--
John-Reed Maffeo

jrm

Re: Syntax Error window locks up image

Marcel,

Thanks!

-jrm

On Tue, Feb 16, 2021 at 8:08 AM Marcel Taeumel <[hidden email]> wrote:

I just noticed "Squeak 5.2" in that screenshot. Yes, we fixed that issue in 5.3 and restart all those processes through the release builder. That particular compiled method in the screenshot was apparently very old and out-of-sync with the .sources file.

http://forum.world.st/The-Trunk-Kernel-mt-1211-mcz-td5093956.html
http://forum.world.st/The-Trunk-Kernel-eem-1273-mcz-td5105160.html

Best,
Marcel

Am 16.02.2021 15:54:50 schrieb Marcel Taeumel <[hidden email]>:
> the method that is run every hour is setup to run a method to
> do some work and then spawn a block with an hour delay
> which runs the method again when the delay elapses.

Ah, so you do not compile code in that method. Hmm...

Am 13.02.2021 17:58:50 schrieb John-Reed Maffeo <[hidden email]>:

CMD]+[Dot] interrupt was the first thing I tried.

At this point it is not repeatable so I don't think there is anything I can do other that keep an eye out for it.

the method that is run every hour is setup to run a method to do some work and then spawn a block with an hour delay which runs the method again when the delay elapses.
-jrm

On Fri, Feb 12, 2021 at 1:33 AM Marcel Taeumel <[hidden email]> wrote:
Hi John-Reed,

can you tell us more about that method your are running every hour?

Syntax errors are as tricky as debuggers. They actually use a debugger internally to interrupt the current (i.e. the compiler's/parser's) control flow and offer interactive means to fix syntax to then continue compilation.

Considering interactive syntax correction, I am not sure whether compilation is safe in processes other than the UI process.

Did you try hitting [CMD]+[Dot] in that case?

Best,
Marcel

Am 12.02.2021 06:00:11 schrieb John-Reed Maffeo <[hidden email]>:

What causes a window like this to appear?
Why does it lock up the image?
The problem occurred in an image that was running unattended using #Delay to run a method every hour. The application is in development but it has been running on schedule for a month or so without any problems.

I do save and restart the image occasionally.

--
jrm

--
John-Reed Maffeo

John-Reed Maffeo