Matthew,
It seems that I have lost my grip on the crash.
It has not happened for almost a week---neither with the version
that I build myself, nor with the nightly build where I definitely
saw it. I did not update Racket during this time.
I did not do anything else. I have no idea why it is gone. Sorry.
On the other hand, business runs as usual now, I run
my programs daily, and there is a chance that the conditions
for the crash will repeat. In that case, I surely will let you know.
Best regards,
Dmitry
On 10/05/2015 05:32 PM, Matthew Flatt wrote:
At Mon, 05 Oct 2015 17:16:34 +0300, Dmitry Pavlov wrote:
I am going to get you a stack trace.
Am I correct that in order to get the stack trace, I have to rebuild
Racket with -G and run it in gdb?
Racket builds with `-g` by default, but `make install` uses `strip`.
You could configure with `--enable-strip`, or just run
"build/racket/racket3m" directly. You might even get a useful stack
trace running the stripped version, since many function names are
preserved for access via dlopen().
Here is another interesting thing that I was able to notice.
As soon as I purged the "compiled" directories from the code tree,
the crashes ceased. I did several consecutive successful runs.
I ran just "racket myprogram", without "raco make" or DrRacket.
Then I executed "raco make myprogram" -- and the very next run
has crashed after ~7h of running.
How do you think, does it make sense that stored bytecode can
cause the crash or is it just a coincidence?
Yes, that's possible; the bytecode format is one thing that changed
with the new expander. The fixed bug related to the new expander had to
do with bytecode, but that one was about interrupting a bytecode load.
You might check whether the `-d` flag has any effect. That flag
disables on-demand bytecode loading.
Another possibility is that loading from source merely shifts
allocation patterns to mask an unrelated bug, but this directory sound
more promising than that, so far.
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