Oops, my bad! You're absolutely right, that was 'svn diff' command. And this mistake was the
reason of crash 'disappearing': after that I built svn 1.8.9 from sources and got the same
crash again, so it is reproducible.
Here is a backtrace for `svn diff -r 1403046 ..` invocation:
http://pastebin.com/DkfRVZmP.
svn, version 1.8.9 (r1591380)
compiled Jun 20 2014, 23:36:08 on x86_64-unknown-linux-gnu
Built using gcc 4.7.2:
gcc (Ubuntu/Linaro 4.7.2-2ubuntu2) 4.7.2
23.06.2014, 13:18, "Bert Huijben" <bert@qqmail.nl>:
>> -----Original Message-----
>> From: Mikhail Veltishchev [mailto:dichlofos-mv@yandex.ru]
>> Sent: vrijdag 20 juni 2014 20:41
>> To: users@subversion.apache.org
>> Subject: assertion failed / segfault in svn_ra_do_diff3
>>
>> I recently caught a segfault / assertion fail in svn client.
>>
>> svn, version 1.8.5 (r1542147)
>> compiled Dec 2 2013, 21:40:18 on x86_64-unknown-linux-gnu (built from
>> sources on Ubuntu 12.04 LTS)
>>
>> It was a reproducible segfault at command something like that
>> svn up -r XXXXXXX ..
>>
>> Here is a backtrace, all coredumps are saved for future analysis.
>>
>> 0x00007f58656ee425 in raise () from /lib/x86_64-linux-gnu/libc.so.6
>> #1 0x00007f58656f1b8b in abort () from /lib/x86_64-linux-gnu/libc.so.6
>> #2 0x00007f5865efcabe in svn_error_abort_on_malfunction
>> (can_return=<optimized out>, file=<optimized out>, line=<optimized
out>,
>> expr=<optimized out>) at subversion/libsvn_subr/error.c:722
>> #3 0x00007f58665f6cdd in svn_ra_do_diff3 (session=0x1c83770,
>> reporter=0x7fff6cc76f48, report_baton=0x7fff6cc76f98, revision=1403046,
>> diff_target=<optimized out>, depth=<optimized out>, ignore_ancestry=1,
>> text_deltas=1, versus
>> _url=0x1bf41e8
>> "svn+ssh://arcadia.yandex.ru/arc/trunk/arcadia/yweb/robot/queuer",
>> diff_editor=0x1bf48c8, diff_baton=0x1bf4948, pool=0x1bf3228) at
>> subversion/libsvn_ra/ra_loader.c:870
>> #4 0x00007f5866ad0d73 in diff_repos_wc
>> (path_or_url1=path_or_url1@entry=0x1c41b10 "..",
>> revision1=revision1@entry=0x7fff6cc77568,
>> peg_revision=peg_revision@entry=0x7fff6cc773b0,
>> path2=path2@entry=0x1c41b10 "..", reverse=rever
>> se@entry=0, depth=depth@entry=svn_depth_unknown,
>> ignore_ancestry=ignore_ancestry@entry=1,
>> show_copies_as_adds=show_copies_as_adds@entry=0,
>> use_git_diff_format=use_git_diff_format@entry=0,
>> changelists=changelists@entry=0x1bed79
>> 0, callbacks=callbacks@entry=0x7f5866d0acc0 <diff_callbacks>,
>> callback_baton=callback_baton@entry=0x7fff6cc77190,
>> cmd_baton=cmd_baton@entry=0x7fff6cc77190, ctx=ctx@entry=0x1bee980,
>> scratch_pool=scratch_pool@entry=0x1bf3228, re
>> vision2=0x7fff6cc77578) at subversion/libsvn_client/diff.c:2027
>> #5 0x00007f5866ad22d5 in do_diff
>> (callback_baton=callback_baton@entry=0x7fff6cc77190,
>> ctx=ctx@entry=0x1bee980, path_or_url1=path_or_url1@entry=0x1c41b10
>> "..", path_or_url2=path_or_url2@entry=0x1c41b10 "..", revision1=revision
>> 1@entry=0x7fff6cc77568, revision2=revision2@entry=0x7fff6cc77578,
>> peg_revision=peg_revision@entry=0x7fff6cc773b0,
>> depth=depth@entry=svn_depth_unknown,
>> ignore_ancestry=ignore_ancestry@entry=1,
>> show_copies_as_adds=show_copies_as
>> _adds@entry=0, use_git_diff_format=use_git_diff_format@entry=0,
>> changelists=changelists@entry=0x1bed790, pool=pool@entry=0x1bf3228,
>> callbacks=0x7f5866d0acc0 <diff_callbacks>) at
>> subversion/libsvn_client/diff.c:2090
>> #6 0x00007f5866ad3b9a in svn_client_diff_peg6
>> (options=options@entry=0x0, path_or_url=0x1c41b10 "..",
>> peg_revision=peg_revision@entry=0x7fff6cc773b0,
>> start_revision=start_revision@entry=0x7fff6cc77568,
>> end_revision=end_revisi
>> on@entry=0x7fff6cc77578, relative_to_dir=relative_to_dir@entry=0x0,
>> depth=svn_depth_unknown, ignore_ancestry=1, no_diff_added=0,
>> no_diff_deleted=0,
>> show_copies_as_adds=show_copies_as_adds@entry=0,
>> ignore_content_type=0, ignore
>> _properties=ignore_properties@entry=0, properties_only=0,
>> use_git_diff_format=0, header_encoding=0x1 <error: Cannot access
>> memory at address 0x1>, outstream=outstream@entry=0x1c418d0,
>> errstream=errstream@entry=0x1c419a0, chang
>> elists=0x1bed790, ctx=ctx@entry=0x1bee980, pool=pool@entry=0x1bf3228)
>> at subversion/libsvn_client/diff.c:2677
>> #7 0x000000000040bc59 in svn_cl__diff (os=<optimized out>,
>> baton=<optimized out>, pool=0x1bed1f8) at subversion/svn/diff-cmd.c:441
>> #8 0x000000000041ad13 in sub_main (argc=argc@entry=5,
>> argv=argv@entry=0x7fff6cc77878, pool=pool@entry=0x1bed1f8) at
>> subversion/svn/svn.c:2878
>> #9 0x0000000000406c5d in main (argc=5, argv=0x7fff6cc77878) at
>> subversion/svn/svn.c:2969
>
> This stacktrace is for some invocation of 'svn diff'. There is no way you
> can get this for an invocation of 'svn update'
> (Update doesn't use any of the UI level diff logic)
>
> So either you are using bad debug symbols, or you are mixing different
> problems.
>> Here is an locals info for svn_ra_do_diff3 call:
>>
>> #4 0x00007f5866ad0d73 in diff_repos_wc
>> (path_or_url1=path_or_url1@entry=0x1c41b10 "..",
>> revision1=revision1@entry=0x7fff6cc77568,
>> peg_revision=peg_revision@entry=0x7fff6cc773b0,
>> path2=path2@entry=0x1c41b10 "..", reverse=rever
>> se@entry=0, depth=depth@entry=svn_depth_unknown,
>> ignore_ancestry=ignore_ancestry@entry=1,
>> show_copies_as_adds=show_copies_as_adds@entry=0,
>> use_git_diff_format=use_git_diff_format@entry=0,
>
> This is another reference to 'svn diff'
>
> Git diff format is a UI level diff support flag, which was also abused for
> the working copy walker in 1.8, but it is unrelated to svn update.
>> changelists=changelists@entry=0x1bed79
>> 0, callbacks=callbacks@entry=0x7f5866d0acc0 <diff_callbacks>,
>> callback_baton=callback_baton@entry=0x7fff6cc77190,
>> cmd_baton=cmd_baton@entry=0x7fff6cc77190, ctx=ctx@entry=0x1bee980,
>> scratch_pool=scratch_pool@entry=0x1bf3228, re
>> vision2=0x7fff6cc77578) at subversion/libsvn_client/diff.c:2027
>> (gdb) info locals
>> svn_err__temp = <optimized out>
>> url1 = 0x1bf41e8
>> "svn+ssh://arcadia.yandex.ru/arc/trunk/arcadia/yweb/robot/queuer"
>> anchor = 0x1bf3cd8 ""
>> anchor_url = 0x1bf40d8
>> "svn+ssh://arcadia.yandex.ru/arc/trunk/arcadia/yweb/robot/queuer/dump
>> dups"
>> target = 0x1bf3ce0 ".."
>> rev = 1403046
>> ra_session = 0x1c83770
>> diff_depth = svn_depth_unknown
>> reporter = <optimized out>
>> reporter_baton = <optimized out>
>> diff_editor = 0x1bf48c8
>> diff_edit_baton = 0x1bf4948
>> rev2_is_base = 0
>> server_supports_depth = 1
>> abspath_or_url1 = 0x1bf3420
>> "/fasthd/mvel/trunk/arcadia/yweb/robot/queuer"
>> abspath2 = 0x1bf3ac8 "/fasthd/mvel/trunk/arcadia/yweb/robot/queuer"
>> anchor_abspath = 0x1bf3e18
>> "/fasthd/mvel/trunk/arcadia/yweb/robot/queuer/dumpdups"
>> kind1 = svn_node_dir
>> kind2 = svn_node_dir
>> is_copy = 0
>> cf_revision = <optimized out>
>> cf_repos_relpath = <optimized out>
>> cf_repos_root_url = <optimized out>
>> pool = 0x1bf3228
>>
>> ... and from next stack:
>> svn_err__temp = 0
>>
>> others are optimized out.
>>
>> After repo updating this crash disappeared. Before that crash I updated
>> 'arcadia/yweb/robot/queuer' subtree to different revision (1403046) a
>> couple of times and rolled it back to 1403047.
>
> Bert
>> --
>> Best regards, Mikhail Veltishchev [Software Dev @ Yandex]
>> mailto:dichlofos-mv@yandex.ru
--
Best regards, Mikhail Veltishchev [Software Dev @ Yandex]
J: dichlofosmv@jabber.ru [home] mvel@jabber.ru [work] ICQ: 7575717
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