Re: dar/libdar crash when -y0 passed on command line

Thanks to not report bug to this mailing-list, but rather use the 
sourceforge tracker (bug tracker for released bugs, and pre-release 
tracker for pre-released bugs), the topics of this mailing-list is "all 
except bug report and support requests". Moreover the trackers are well 
adapted to bug followup categorization and attachment, which is not the 
case of a mailing-list.

I have a look at this bug, but Johnathan, could you open a "case" in the 
pre-release or bug tracker ?

Thanks in advance.
Denis.

Johnathan Burchill wrote:
> Hi Denis,
> 
> When running dar with -y0 option, I get SIGSEGV.
> 
> john@igloo:~/tmp$ dar -c test-dar1 -R ./test-dar-compression -y0 -Z "*.gz" 
> -Z "*.bz2"
> Reading config file: /home/john/.darrc
> Segmentation fault
> 
> Here is the output from gdb:
> 
> john@igloo:~/tmp$ gdb dar
> [...]
> (gdb) set args -c test-compress -R ./test-dar-compression -y0
> (gdb) r
> Starting program: /usr/local/bin/dar -c test-compress -R 
> ./test-dar-compression -y0
> Reading config file: /home/john/.darrc
> 
> Program received signal SIGSEGV, Segmentation fault.
> 0x401c69c8 in vtable for __cxxabiv1::__si_class_type_info ()
>    from /usr/lib/libstdc++.so.5
> (gdb) bt
> #0  0x401c69c8 in vtable for __cxxabiv1::__si_class_type_info ()
>    from /usr/lib/libstdc++.so.5
> #1  0x40204ee1 in _Unwind_RaiseException () from /usr/lib/libgcc_s.so.1
> #2  0x401b7299 in __cxa_throw () from /usr/lib/libstdc++.so.5
> #3  0x4009878d in libdar::compressor::init(libdar::compression, 
> libdar::generic_file*, unsigned) () from /usr/local/lib/libdar64.so.1
> #4  0x40097f18 in libdar::compressor::compressor(libdar::compression, 
> libdar::generic_file&, unsigned) () from /usr/local/lib/libdar64.so.1
> #5  0x4006a9ad in libdar::op_create_in(bool, libdar::path const&, 
> libdar::path const&, libdar::path const*, libdar::mask const&, 
> libdar::mask const&, std::string const&, std::string const&, std::string 
> const*, bool, bool, bool, bool, bool, libdar::compression, unsigned, 
> libdar::limitint<unsigned long long> const&, libdar::limitint<unsigned 
> long long> const&, bool, bool, std::string const&, std::string const&, 
> std::string const&, std::string const&, std::string const&, std::string 
> const&, libdar::mask const&, libdar::limitint<unsigned long long> const&, 
> bool, libdar::l---Type <return> to continue, or q <return> to quit---
> imitint<unsigned long long> const&) () from /usr/local/lib/libdar64.so.1
> #6  0x40064ad7 in libdar::op_create(libdar::path const&, libdar::path 
> const&, libdar::path const*, libdar::mask const&, libdar::mask const&, 
> std::string const&, std::string const&, std::string const*, bool, bool, 
> bool, bool, bool, libdar::compression, unsigned, libdar::limitint<unsigned 
> long long> const&, libdar::limitint<unsigned long long> const&, bool, 
> bool, std::string const&, std::string const&, std::string const&, 
> std::string const&, std::string const&, std::string const&, libdar::mask 
> const&, libdar::limitint<unsigned long long> const&, bool, bool, 
> libdar::limitint<unsigned long long> const&) () from 
> /usr/local/lib/libdar64.so.1
> #7  0x0805be1b in little_main(int, char**, char const**) ()
> #8  0x0805dfe1 in dar_suite_global(int, char**, char const**, int (*)(int, 
> char**, char const**)) ()
> #9  0x0805b8ea in main ()
> #10 0x4021fbb4 in __libc_start_main () from /lib/libc.so.6
> (gdb)
> 
> In KDar I restrict the compression level to the range 1--9 for gzip,
> and disable it altogether for bzip2.
> 
> But perhaps this "exception" should be caught at the libdar level?
> 
> JB




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