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Re: Breakage on trunk?

From: Stefan Fuhrmann <eqfox_at_web.de>
Date: Sat, 05 Mar 2011 00:02:38 +0100

On 04.03.2011 12:32, John Beranek wrote:
> On 04/03/11 11:18, Philip Martin wrote:
>> John Beranek<john_at_redux.org.uk> writes:
>>> Oh, this is for a run of an installed copy of svnserve, as I don't have a:
>>> subversion/tests/libsvn_client/.libs/lt-client-test
>>> only:
>>> subversion/tests/libsvn_client/client-test
>>> [A wrapper script I can't run with gdb]
>>> subversion/tests/libsvn_client/.libs/client-test
>>> [An executable that doesn't find its libraries]
>> Building creates the libtool wrapper scipt client-test and the
>> executable .libs/client-tests. The executable is one that will be
>> installed and is linked to libraries in the install path.
>> If you run the libtool wrapper script it creates a second, temporary
>> executable .libs/lt-client-test. This is linked to libraries in the
>> build directory. This is one you debug.
> Oh, I _see_. :)
> #0 0x0000003786c330c5 in raise () from /lib64/libc.so.6
> #1 0x0000003786c34a76 in abort () from /lib64/libc.so.6
> #2 0x0000003786c2b905 in __assert_fail () from /lib64/libc.so.6
> #3 0x00007ffff5b88d0b in svn_temp_deserializer__resolve (
> buffer=<value optimized out>, ptr=<value optimized out>)
> at subversion/libsvn_subr/svn_temp_serializer.c:282
> #4 0x00007ffff6403606 in svn_fs_fs__id_deserialize (
> buffer=<value optimized out>, id=0x7912b0)
> at subversion/libsvn_fs_fs/id.c:387
> #5 0x00007ffff63f4743 in svn_fs_fs__dag_deserialize (out=0x7fffffffd750,
> data=0x7912a8 "", data_len=<value optimized out>,
> pool=<value optimized out>) at subversion/libsvn_fs_fs/dag.c:1111
This is the first call to any de-serializer function
right after the raw data has been read cache.

So, there is a chance that the data either got
corrupted by the cache itself or was garbage
even before that. Therefore, I added extensive
consistency checks in r1078185 to be able to
rule out the cache code itself.

Please rebuild with -DDEBUG_CACHE_MEMBUFFER
and retry.

-- Stefan^2.
Received on 2011-03-05 00:03:03 CET

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