[Nix-dev] Bug in latest nixUnstable on darwin

[Shea Levy]

Hi all,

Running nix-prefetch-url results in the following message after the curl:

perl(17665) malloc: *** error for object 0x7fff70389500:
                 pointer being freed was not allocated
*** set a breakpoint in malloc_error_break to debug

Setting the breakpoint as suggested and printing a backtrace shows:

#0  0x00007fff87d90499 in malloc_error_break ()
#1  0x00007fff87cba183 in free ()
#2  0x00000001004c428e in boost::basic_format::parse ()
#3  0x00000001004c06fa in boost::basic_format::basic_format ()
#4  0x0000000100450e08 in nix::querySetting ()
#5  0x000000010045183c in nix::querySetting ()
#6  0x00000001004525e3 in nix::setDefaultsFromEnvironment ()
#7  0x00000001001ac965 in doInit ()
#8  0x00000001001adb9a in XS_Nix__Store_addToStore ()
#9  0x00000001000897ce in Perl_pp_entersub ()
#10 0x00000001000814e6 in Perl_runops_standard ()
#11 0x000000010001f005 in perl_run ()
#12 0x0000000100000e0c in main ()

Any thoughts? Any other things I should check when stopped at the 
breakpoint?

Cheers,
Shea