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This queue is for tickets about the Compress-unLZMA CPAN distribution.

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The Basics
Id: 42132
Status: resolved
Priority: 0/
Queue: Compress-unLZMA
People
Owner: Nobody in particular
Requestors: ANDK [...] cpan.org
Cc: JNW [...] cpan.org
AdminCc:
Bug Information
Severity: Normal
Broken in:
  • 0.02
  • 0.03
Fixed in: 0.04

History Show all quoted text
  Sun Jan 04 11:54:35 2009 ANDK [...] cpan.org - Ticket created
Subject: SEGV on 64 bit systems
While watching FAILs on cpantesters site I discovered a perfect correlation between Compress-unLZMA-0.02 FAILs and 64bit systems like alpha and amd64/x86_64. I have then reproduced on my own x86_64. The stack trace after the SEGV looks like so: Core was generated by `/usr/local/perl-5.10-g/bin/perl -w t/Compress-unLZMA.t'. Program terminated with signal 11, Segmentation fault. [New process 7268] #0 0x00002ada208f8f2c in LzmaDecode () from /home/sand/.cpan/build/Compress-unLZMA-0.02-BXelFy/blib/arch/auto/Compress/unLZMA/unLZMA.so (gdb) bt #0 0x00002ada208f8f2c in LzmaDecode () from /home/sand/.cpan/build/Compress-unLZMA-0.02-BXelFy/blib/arch/auto/Compress/unLZMA/unLZMA.so #1 0x00002ada208f97cb in LzmaUncompressData () from /home/sand/.cpan/build/Compress-unLZMA-0.02-BXelFy/blib/arch/auto/Compress/unLZMA/unLZMA.so #2 0x00002ada208f9d93 in LzmaUncompressFile () from /home/sand/.cpan/build/Compress-unLZMA-0.02-BXelFy/blib/arch/auto/Compress/unLZMA/unLZMA.so #3 0x00002ada208fa080 in XS_Compress__unLZMA_uncompressfile () from /home/sand/.cpan/build/Compress-unLZMA-0.02-BXelFy/blib/arch/auto/Compress/unLZMA/unLZMA.so #4 0x0000000000465f8a in Perl_pp_entersub () #5 0x00000000004645b2 in Perl_runops_standard () #6 0x0000000000460bcf in perl_run () #7 0x000000000041f5bc in main () Let me know if you'd need further infos. Regards,
  Tue Jul 06 14:10:03 2010 JNW [...] cpan.org - Correspondence added
the attached patch fixes this. Using sizeof(struct LzmaVarState) instead of hardcoded 100. v0.03 is available (including my patch) from http://software.opensuse.org/search?q=perl-Compress-unLZMA
Subject: survive_64bit.patch
--- Compress-unLZMA-0.03/unLZMA.xs.orig 2009-04-19 15:40:57.000000000 +0200 +++ Compress-unLZMA-0.03/unLZMA.xs 2010-07-06 19:53:26.342873000 +0200 @@ -59,9 +59,10 @@ int LzmaUncompressData(Content *pIn, Con lzmaInternalSize = (LZMA_BASE_SIZE + (LZMA_LIT_SIZE << (lc + lp)))* sizeof(CProb); - #ifdef _LZMA_OUT_READ - lzmaInternalSize += 100; - #endif +#ifdef _LZMA_OUT_READ + // lzmaInternalSize += 100; // good for 32bit systems only. jw@suse.de + lzmaInternalSize += sizeof(LzmaVarState); +#endif New(0, pOut->content, pOut->size, char); if (pOut->content == 0)
  Tue Jul 06 14:10:04 2010 The RT System itself - Status changed from 'new' to 'open'
  Tue Jul 06 14:13:42 2010 JNW [...] cpan.org - Broken in 0.03 added
  Tue Jul 06 14:47:58 2010 JNW [...] cpan.org - Cc JNW added
  Sat Jul 17 13:06:52 2010 ferreira [...] shoo.cpan.org - Correspondence added
On Tue Jul 06 14:10:03 2010, JNW wrote: Show quoted text
> the attached patch fixes this.
Thank you very much, Jurgen and Andreas. Sorry for making you wait for so long. Compress-unLZMA-0.04 is on its way to CPAN.
  Sat Jul 17 13:06:53 2010 ferreira [...] shoo.cpan.org - Status changed from 'open' to 'patched'
  Mon Jul 19 20:24:59 2010 ferreira [...] shoo.cpan.org - Fixed in 0.04 added
  Mon Jul 19 20:25:13 2010 ferreira [...] shoo.cpan.org - Status changed from 'patched' to 'resolved'