clarifying pharo crashing issue(s)
Hi, There are recurrent reports that Pharo is crashing often. However, at the moment I believe the reasons are not clarified. So, this mail is not about fixing the issues, but first about clarifying what they are. Namely: - I know about the typing problem on MacOS (Sierra or High Sierra). I encounter this problem daily (literally), and I know that I am not the only one. For example, this can occur when I type âclasssâ fast and then delete the last character. It is documented here: https://github.com/OpenSmalltalk/opensmalltalk-vm/issues/141 - Some people talk about the FreeType problem, but I could not find a place where this is described. So, while this might be a problem, I am not sure that this problem is actually causing crashes. So, first question: - is Pharo crashing on another system than MacOS Sierra or HighSierra? - how does the FreeType problem look like? Cheers, Doru -- www.tudorgirba.com www.feenk.com "Beauty is where we see it."
2017-11-27 9:20 GMT+01:00 Tudor Girba <tudor@tudorgirba.com>:
Hi,
There are recurrent reports that Pharo is crashing often.
However, at the moment I believe the reasons are not clarified. So, this mail is not about fixing the issues, but first about clarifying what they are.
Namely:
- I know about the typing problem on MacOS (Sierra or High Sierra). I encounter this problem daily (literally), and I know that I am not the only one. For example, this can occur when I type âclasssâ fast and then delete the last character. It is documented here: https://github.com/OpenSmalltalk/opensmalltalk-vm/issues/141
- Some people talk about the FreeType problem, but I could not find a place where this is described. So, while this might be a problem, I am not sure that this problem is actually causing crashes.
So, first question: - is Pharo crashing on another system than MacOS Sierra or HighSierra?
Yes. On Linux (Ubuntu 16.04 / 17.04), 64bits Pharo segfaults if you use either the stable or the latest vm from get.pharo.org.
- how does the FreeType problem look like?
? It doesn't seems to be related. Regards, Thierry
Cheers, Doru
-- www.tudorgirba.com www.feenk.com
"Beauty is where we see it."
It is even crashing headless. I have one jenkins job where the build fails everytime because the vm is crashing. 32 bit runs fine Norbert
Am 27.11.2017 um 09:34 schrieb Thierry Goubier <thierry.goubier@gmail.com>:
2017-11-27 9:20 GMT+01:00 Tudor Girba <tudor@tudorgirba.com>:
Hi,
There are recurrent reports that Pharo is crashing often.
However, at the moment I believe the reasons are not clarified. So, this mail is not about fixing the issues, but first about clarifying what they are.
Namely:
- I know about the typing problem on MacOS (Sierra or High Sierra). I encounter this problem daily (literally), and I know that I am not the only one. For example, this can occur when I type âclasssâ fast and then delete the last character. It is documented here: https://github.com/OpenSmalltalk/opensmalltalk-vm/issues/141
- Some people talk about the FreeType problem, but I could not find a place where this is described. So, while this might be a problem, I am not sure that this problem is actually causing crashes.
So, first question: - is Pharo crashing on another system than MacOS Sierra or HighSierra?
Yes.
On Linux (Ubuntu 16.04 / 17.04), 64bits Pharo segfaults if you use either the stable or the latest vm from get.pharo.org.
- how does the FreeType problem look like?
? It doesn't seems to be related.
Regards,
Thierry
Cheers, Doru
-- www.tudorgirba.com www.feenk.com
"Beauty is where we see it."
2017-11-27 9:38 GMT+01:00 Norbert Hartl <norbert@hartl.name>:
It is even crashing headless. I have one jenkins job where the build fails everytime because the vm is crashing. 32 bit runs fine
Yes: my headless image building makefiles would segfault. Thierry
Norbert
Am 27.11.2017 um 09:34 schrieb Thierry Goubier <thierry.goubier@gmail.com
:
2017-11-27 9:20 GMT+01:00 Tudor Girba <tudor@tudorgirba.com>:
Hi,
There are recurrent reports that Pharo is crashing often.
However, at the moment I believe the reasons are not clarified. So, this mail is not about fixing the issues, but first about clarifying what they are.
Namely:
- I know about the typing problem on MacOS (Sierra or High Sierra). I encounter this problem daily (literally), and I know that I am not the only one. For example, this can occur when I type âclasssâ fast and then delete the last character. It is documented here: https://github.com/OpenSmalltalk/opensmalltalk-vm/issues/141
- Some people talk about the FreeType problem, but I could not find a place where this is described. So, while this might be a problem, I am not sure that this problem is actually causing crashes.
So, first question: - is Pharo crashing on another system than MacOS Sierra or HighSierra?
Yes.
On Linux (Ubuntu 16.04 / 17.04), 64bits Pharo segfaults if you use either the stable or the latest vm from get.pharo.org.
- how does the FreeType problem look like?
? It doesn't seems to be related.
Regards,
Thierry
Cheers, Doru
-- www.tudorgirba.com www.feenk.com
"Beauty is where we see it."
On 27-11-17 09:20, Tudor Girba wrote:
Hi,
There are recurrent reports that Pharo is crashing often. So, first question: - is Pharo crashing on another system than MacOS Sierra or HighSierra?
Yes, older MacOS, Ubuntu 16.04LTS, Windows 7 & 10. Both 64 and 32 bit, latest and stable vms. I'm mostly using PharoLauncher One of them is |project| Gofer it smalltalkhubUser: 'StephanEggermont' project: 'MonticelloProjects'; package: 'MonticelloProjects'; load. project := (Smalltalk at: #MCProject) new location: 'http://smalltalkhub.com/mc/StephanEggermont/Documentation/main'. project read. project saveToFile. Stephan
Hi, How do they crash? When you run something specific? Doru
On Nov 27, 2017, at 11:56 AM, stephan <stephan@stack.nl> wrote:
On 27-11-17 09:20, Tudor Girba wrote:
Hi, There are recurrent reports that Pharo is crashing often. So, first question: - is Pharo crashing on another system than MacOS Sierra or HighSierra?
Yes, older MacOS, Ubuntu 16.04LTS, Windows 7 & 10. Both 64 and 32 bit, latest and stable vms. I'm mostly using PharoLauncher
One of them is
|project| Gofer it smalltalkhubUser: 'StephanEggermont' project: 'MonticelloProjects'; package: 'MonticelloProjects'; load.
project := (Smalltalk at: #MCProject) new location: 'http://smalltalkhub.com/mc/StephanEggermont/Documentation/main'. project read. project saveToFile.
Stephan
-- www.tudorgirba.com www.feenk.com "Not knowing how to do something is not an argument for how it cannot be done."
2017-11-27 9:20 GMT+01:00 Tudor Girba <tudor@tudorgirba.com>:
Hi,
There are recurrent reports that Pharo is crashing often.
However, at the moment I believe the reasons are not clarified. So, this mail is not about fixing the issues, but first about clarifying what they are.
Namely:
- I know about the typing problem on MacOS (Sierra or High Sierra). I encounter this problem daily (literally), and I know that I am not the only one. For example, this can occur when I type âclasssâ fast and then delete the last character. It is documented here: https://github.com/OpenSmalltalk/opensmalltalk-vm/issues/141
- Some people talk about the FreeType problem, but I could not find a place where this is described. So, while this might be a problem, I am not sure that this problem is actually causing crashes.
Hi Tudor, I did not experience directly the FreeType related crash, but here is an analysis of what could potentially happen, a cairo_font_face still pointing on a FreeType FT_Face that has already been freed (dangling pointer...). https://pharo.fogbugz.com/f/cases/20776/Potential-dangling-ref-to-freed-FT_F... I started to inquire this after an unrelated libgit crash and reported in the thread "[Pharo-dev] ExternalAddress uniqueness (was Re: Call for help for stability and rewrite of FreeType)" So, first question:
- is Pharo crashing on another system than MacOS Sierra or HighSierra? - how does the FreeType problem look like?
Cheers, Doru
-- www.tudorgirba.com www.feenk.com
"Beauty is where we see it."
participants (5)
-
Nicolas Cellier -
Norbert Hartl -
stephan -
Thierry Goubier -
Tudor Girba