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juninho12 / freearc

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Segmentation Fault Compressing a 2.5GB dataset #314

Open GoogleCodeExporter opened 9 years ago

GoogleCodeExporter commented 9 years ago 
What steps will reproduce the problem?

1. compress problematic dataset with: arc a -r -mX /target.arc /source/dir
2. If X in above line is >= 3 I got "segmentation fault" for this specific 
dataset when progress shows 0.1%. Other compression methods like -m2 and -m1 
works. I usually work with -m4 with no problems on other datasets.

What is the expected output? What do you see instead?

The expected output is a compressed .arc file.
What I see instead is that it segfaults and a leftover 0 bytes .tmp file is 
created.

What version of the product are you using? On what operating system?

Official arc 0.666 linux binary, on Ubuntu 11.10, kernel 3.0.0-12-generic-pae 
#20-Ubuntu SMP with 2GB RAM.

Please provide any additional information below.

Please, let me know what kind of additional/debugging information would be 
useful to debug the problem.
Encountered this problem with only two specific datasets. I have created 
hundreds of .arc archives in this specific platform without any problem.

Thank you for such a nice tool!

Original issue reported on code.google.com by ferran.e...@gmail.com on 15 Aug 2012 at 5:35

GoogleCodeExporter commented 9 years ago 
how i could debug this problem without your datasets?

Original comment by bulat.zi...@gmail.com on 15 Aug 2012 at 5:52

GoogleCodeExporter commented 9 years ago 
[deleted comment]
GoogleCodeExporter commented 9 years ago 
You can't. :)
Will you download 2.5GB to debug the problem? I can make the data available 
online.

But let me first test with the latest alpha version, to find out if the problem 
is already fixed, so you can avoid the download.
Will update here with the result.

Thanks.

Original comment by ferran.e...@gmail.com on 15 Aug 2012 at 6:19

GoogleCodeExporter commented 9 years ago 
downloading 2.5 gb is no problem. you can upload it to files.mail.ru/eng using 
login encoderu/encoderu

but first try to add -lc1234 option to cmdline - does it solve the problem?

Original comment by bulat.zi...@gmail.com on 15 Aug 2012 at 6:41

GoogleCodeExporter commented 9 years ago 
The -lc1234 does not solve the problem.

Moreover, I just tried to compress the same dataset with the Windows version of 
FreeArc, and it works flawless, so it looks like something linux specific.

I have not been able to find a build of 0.67 alpha for linux on the freearc web 
to test against. Is it available somewhere?

Thanks.

Original comment by ferran.e...@gmail.com on 15 Aug 2012 at 7:20