On Thu, Jul 11, 2013 at 07:47:19PM +0400, Pavel Borzenkov wrote: > Hi, > > after update to svn 1.8.0 I have 100% reproducible perl crash during > 'git svn fetch' with the following error (full backtrace + link to > core at the end of the message): > > *** Error in `/usr/bin/perl': double free or corruption (!prev): > 0x000000000332fc90 *** > > Downgrading to 1.7.10 helps. > Any advice on what could be the reason?
>From the backtrace you provided, it looks like a pool cleanup handler is trying to free memory that is already freed, or is trying to free an invalid pointer. It's hard to say where the problem originates since at the time the pool cleanup handler runs the error has already happened elsewhere. Off-hand, I don't know what could be going wrong. This could well be a bug in Subversion 1.8. Or it could be a bug in the perl script (because, yes, perl scripts need to manage memory when using the swig bindings -- the bindings are a straight wrapper around the C API and do not abstract memory management away from the scripting language). Can you run this script in Valgrind or a similar analysis tool? That might help shed more light on the issue.
