On May 5, 2011, at 4:04 PM, Brian Gernhardt wrote:
> On May 5, 2011, at 5:32 AM, Jeff King wrote:
>
>> Given that the problem seems racy and intermittent, have you tried
>> running under valgrind?
>
> This is on my OS X laptop and last I knew valgrind was very buggy on OS X, so I've never tried it. I'll install it now and see if I can get anything useful out of it.
I will note the test _reliably_ fails when run in parallel with other tests.
Under valgrind I get the following error. I will note that attempting to run the full test suite with valgrind gives lots of similar errors in many tests. (All conditional jump in deflate, allocated in write_loose_object.)
==14187== Conditional jump or move depends on uninitialised value(s)
==14187== at 0x100209B3B: deflateEnd (in /usr/lib/libz.1.2.3.dylib)
==14187== by 0x10020ABF6: deflateSetDictionary (in /usr/lib/libz.1.2.3.dylib)
==14187== by 0x10020B914: deflate (in /usr/lib/libz.1.2.3.dylib)
==14187== by 0x1000FA631: write_loose_object (in /Users/brian/dev/git/t/valgrind/../../git)
==14187== by 0x1000FA8C8: write_sha1_file (in /Users/brian/dev/git/t/valgrind/../../git)
==14187== by 0x1000FACFB: index_mem (in /Users/brian/dev/git/t/valgrind/../../git)
==14187== by 0x1000FAE95: index_fd (in /Users/brian/dev/git/t/valgrind/../../git)
==14187== by 0x100038258: hash_fd (in /Users/brian/dev/git/t/valgrind/../../git)
==14187== by 0x1000386AA: cmd_hash_object (in /Users/brian/dev/git/t/valgrind/../../git)
==14187== by 0x1000016BC: run_builtin (in /Users/brian/dev/git/t/valgrind/../../git)
==14187== by 0x10000186E: handle_internal_command (in /Users/brian/dev/git/t/valgrind/../../git)
==14187== by 0x10000195F: run_argv (in /Users/brian/dev/git/t/valgrind/../../git)
==14187== Uninitialised value was created by a heap allocation
==14187== at 0x1001F5345: malloc (vg_replace_malloc.c:236)
==14187== by 0x10020A0FB: deflateInit2_ (in /usr/lib/libz.1.2.3.dylib)
==14187== by 0x10020A264: deflateInit_ (in /usr/lib/libz.1.2.3.dylib)
==14187== by 0x1000FA588: write_loose_object (in /Users/brian/dev/git/t/valgrind/../../git)
==14187== by 0x1000FA8C8: write_sha1_file (in /Users/brian/dev/git/t/valgrind/../../git)
==14187== by 0x1000FACFB: index_mem (in /Users/brian/dev/git/t/valgrind/../../git)
==14187== by 0x1000FAE95: index_fd (in /Users/brian/dev/git/t/valgrind/../../git)
==14187== by 0x100038258: hash_fd (in /Users/brian/dev/git/t/valgrind/../../git)
==14187== by 0x1000386AA: cmd_hash_object (in /Users/brian/dev/git/t/valgrind/../../git)
==14187== by 0x1000016BC: run_builtin (in /Users/brian/dev/git/t/valgrind/../../git)
==14187== by 0x10000186E: handle_internal_command (in /Users/brian/dev/git/t/valgrind/../../git)
==14187== by 0x10000195F: run_argv (in /Users/brian/dev/git/t/valgrind/../../git)
==14187==
{
<insert_a_suppression_name_here>
Memcheck:Cond
fun:deflateEnd
fun:deflateSetDictionary
fun:deflate
fun:write_loose_object
fun:write_sha1_file
fun:index_mem
fun:index_fd
fun:hash_fd
fun:cmd_hash_object
fun:run_builtin
fun:handle_internal_command
fun:run_argv
}
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