Re: subversion cross compile (arm)

Hi!

I continued the work on my issue.
It seems to be a memory allocation or over-writing problem.

There is the section (see between HEADER_TEXT and HEADER_TEXT OK)
where it calling representation_string, which has to generate the
'text: ...' string. I printed out the input parameters.
Later, there is a totally different string (at the parsing section, at
the bottom of the log).

If I'm changing the order of the debug print lines (rev, offset, size,
etc) The value of these are changing too (everything else is the
same).
Ie: If there is only the rev: ... debug line, the result is:
rev 4618626049922564096

My imagine is that, this is a memory corruption bug, but I'm unable to
compile valgrind, or any other high level debug utility to my
development board.
Can anybody help me in debugging and fixing???

Regards,
András

/ # svn mkdir file:///var/svn/testrepo/xxx -m "aaa"
fs_fs: [LINE 2082] calling svn_fs_fs__read_noderev
fs_fs: [LINE 2140] calling read_rep_offsets '0 0 4 4
2d2977d1c96f487abe4a1e202dd03b4e'
read_rep_offsets: [LINE 1947] '0 0 4 4 2d2977d1c96f487abe4a1e202dd03b4e'
read_rep_offsets: [LINE 1956] '0'
read_rep_offsets: [LINE 1973] '0'
read_rep_offsets: [LINE 1984] '4'
read_rep_offsets: [LINE 1995] '4'
read_rep_offsets: [LINE 2009] '2d2977d1c96f487abe4a1e202dd03b4e'
apr_file_open: '/var/svn/testrepo/db/transactions/0-0.txn/node.0.0'
Call svn_fsfs__write_noderev in svn_fs_fs__put_node_revision [LINE 2390]
svn_fsfs__write_noderev HEADER_TEXT
rev 0
offs 4618626049922564096
size 4
exp size 4
md5 2d2977d1c96f487abe4a1e202dd03b4e
svn_fsfs__write_noderev HEADER_TEXT OK
fs_fs: [LINE 2082] calling svn_fs_fs__read_noderev
fs_fs: [LINE 2140] calling read_rep_offsets '0 4 4 531704 (null)'
read_rep_offsets: [LINE 1947] '0 4 4 531704 (null)'
read_rep_offsets: [LINE 1956] '0'
read_rep_offsets: [LINE 1973] '4'
read_rep_offsets: [LINE 1984] '4'
read_rep_offsets: [LINE 1995] '531704'
subversion/libsvn_fs_fs/fs_fs.c:2239: (apr_err=160004)
svn: Corrupt node-revision '0.0.t0-0'
subversion/libsvn_fs_fs/fs_fs.c:2006: (apr_err=160004)
svn: Malformed text representation offset line in node-rev
read_rep_offsets: apr_strtok #4 last_string '' string '0' str '(null)'
strlen(str) 6 (APR_MD5_DIGESTS
IZE*2) 32 revision 0 offset 4 size 0 expsize 4
/ #

--
Takács András
Skype: wakoond
GTalk: wakoond
MSN: wakoond_at_freestart.hu
2010/12/2 Takács András <wakoond_at_gmail.com>:
> Hi All, Hi daniel,
>
> Daniel, thanks a lot your help, I'm getting more closer to the origin
> of the issue. (I hope.)
> I CC'ed the dev@ list as well, so I'm summarize the problem again.
>
> I'm cross compiling subversion for an ARM9 based development board (mini2440).
> (You'll find my configure options below.)
> This is a totaly clean environbent. There are just the libraries of
> toolchain (codesourcery).
> I built apr, apr-util, zlib, and sqlite from subversion-deps package,
> and the subversion itself.
> It is version 1.6.15.
>
> I'm createing a new repository with svn create, and after it I'm
> trying svn mkdir file:///...
> The result is:
> svn: Commit failed (details follow):
> svn: Corrupt node-revision '0.0.t0-0'
> svn: Malformed text representation offset line in node-rev
>
> Based on Daniel's help, I started to patch fs_fs.c, and adding debug
> messages to it:
> / # svnadmin create /var/svn/testrepo   <=== I'm creating the repository
> / # cat /var/svn/testrepo/db/revs/0/0     <=== Checking the revision
> file. Seems to be OK.
> PLAIN
> END
> ENDREP
> id: 0.0.r0/17
> type: dir
> count: 0
> text: 0 0 4 4 2d2977d1c96f487abe4a1e202dd03b4e
> cpath: /
>
>
> 17 107
> / # svn mkdir file:///var/svn/testrepo/xxx -m "mmmmm"
> fs_fs: [LINE 2082] calling svn_fs_fs__read_noderev   <=== It is the
> bottom of the get_node_revision_body function
> fs_fs: [LINE 2140] calling read_rep_offsets '0 0 4 4
> 2d2977d1c96f487abe4a1e202dd03b4e'
> read_rep_offsets: [LINE 1947] '0 0 4 4
> 2d2977d1c96f487abe4a1e202dd03b4e' <== The string parameter of
> read_rep_offsets
> read_rep_offsets: [LINE 1956] '0'  <=== Return str of first apr_strtok
> read_rep_offsets: [LINE 1973] '0'  <=== Return str of second apr_strtok
> read_rep_offsets: [LINE 1984] '4'  <=== Return str of third apr_strtok
> read_rep_offsets: [LINE 1995] '4'  <=== Return str of fourth apr_strtok
> read_rep_offsets: [LINE 2009] '2d2977d1c96f487abe4a1e202dd03b4e'  <===
> Return str of fifth apr_strtok
> fs_fs: [LINE 2082] calling svn_fs_fs__read_noderev
> apr_strtok: [LINE 35] '0.0.t0-0'
> apr_strtok: [LINE 58] '0'
> apr_strtok: [LINE 35] '0.t0-0'
> apr_strtok: [LINE 58] '0'
> apr_strtok: [LINE 35] 't0-0'
> apr_strtok: [LINE 58] 't0-0'
> fs_fs: [LINE 2140] calling read_rep_offsets '0 4 4 4621479420036127952 (null)'
> read_rep_offsets: [LINE 1947] '0 4 4 4621479420036127952 (null)'
> read_rep_offsets: [LINE 1956] '0'
> read_rep_offsets: [LINE 1973] '4'
> read_rep_offsets: [LINE 1984] '4'
> read_rep_offsets: [LINE 1995] '4621479420036127952'
> subversion/libsvn_fs_fs/fs_fs.c:2239: (apr_err=160004)
> svn: Corrupt node-revision '0.0.t0-0'
> subversion/libsvn_fs_fs/fs_fs.c:2006: (apr_err=160004)
> svn: Malformed text representation offset line in node-rev
> read_rep_offsets: apr_strtok #4 last_string '' string '0' str '(null)'
> strlen(str) 6 (APR_MD5_DIGESTS
> IZE*2) 32 revision 0 offset 4 size 0 expsize 4
> / #
>
> I figured out, that the first execution of fs_fs__read_noderev is
> parsing the /var/svn/testrepo/db/revs/0/0 file.
> What is the input of the second execution? I see thet it is in wrong
> format, but what is the origin of this?
>
>
> Thanks a lot!
>
> Regards,
> András
>
>
>
>
> ----------------------------------------------------------------------------------------------------------------------------------------------------
>
> Toolchain: arm-2008q3-72-arm-none-linux-gnueabi-i686-pc-linux-gnu
> Cross gcc:  arm-none-linux-gnueabi-gcc
> Cross cflags: -march=armv4t -mtune=arm920t
>
> Apr configure:
>               ./configure \
>                       --prefix=/usr \
>                       --host=$(CROSS_COMPILE) \
>                       ac_cv_file__dev_zero="yes" \
>                       ac_cv_func_setpgrp_void="yes" \
>                       apr_cv_process_shared_works="yes" \
>                       apr_cv_mutex_robust_shared="no" \
>                       apr_cv_tcp_nodelay_with_cork="yes" \
>                       ac_cv_sizeof_struct_iovec="8" \
>                       apr_cv_mutex_recursive="yes" \
>                       CFLAGS=$(CROSS_CFLAGS) \
>                       LDFLAGS=$(CROSS_LDFLAGS)
>
> Apr-utils configure:
>               ./configure \
>                       --with-apr=<MY_APR_BUILD_DIR> \
>                       --prefix=/usr \
>                       --host=$(CROSS_COMPILE) \
>                       CFLAGS=$(CROSS_CFLAGS) \
>                       LDFLAGS=$(CROSS_LDFLAGS); \
>
> Subversion configure:
>       ./configure \
>               --with-apr=$(PACKAGES_DIR)/apr/$(TARGET_PACKAGE)/apr \
>               --with-apr-util=$(PACKAGES_DIR)/apr-util/$(TARGET_PACKAGE)/apr-util
> \
>               --with-sqlite="$(TARGET_DEV_ROOT)/usr" \
>               --with-zlib="$(TARGET_DEV_ROOT)/usr" \
>               --host=$(CROSS_COMPILE) \
>               --prefix=/usr \
>               CFLAGS=$(CROSS_CFLAGS) \
>               LDFLAGS=$(CROSS_LDFLAGS)
>
> Other compiled libraries: sqlite3, zlib
> I'm usung the latest, 1.6.15 subversion and subversion-deps packages.
> (I compiled all libraries from subversion-deps, no other installed library)
>
>
>
>
>
> --
> Takács András
> Skype: wakoond
> GTalk: wakoond
> MSN: wakoond_at_freestart.hu
>