https://bugs.openldap.org/show_bug.cgi?id=9378
Issue ID: 9378
Summary: Crash in mdb_put() / mdb_page_dirty()
Product: LMDB
Version: 0.9.26
Hardware: All
OS: Linux
Status: UNCONFIRMED
Severity: normal
Priority: ---
Component: liblmdb
Assignee: bugs(a)openldap.org
Reporter: nate(a)kde.org
Target Milestone: ---
The KDE Baloo file indexer uses lmdb as its database (source code available at
https://invent.kde.org/frameworks/baloo). Our most common crash, with over 100
duplicate bug reports, is in lmdb. Here's the bug report tracking it:
https://bugs.kde.org/show_bug.cgi?id=389848.
The version of lmdb does not seem to matter much. We have bug reports from Arch
users with lmdb 0.9.26 as well as bug reports from people using many earlier
versions.
Here's an example backtrace, taken from
https://bugs.kde.org/show_bug.cgi?id=426195:
#6 __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:50
#7 0x00007f3c0bbb9859 in __GI_abort () at abort.c:79
#8 0x00007f3c0b23ba83 in mdb_assert_fail (env=0x55e2ad710600,
expr_txt=expr_txt@entry=0x7f3c0b23e02f "rc == 0",
func=func@entry=0x7f3c0b23e978 <__func__.7221> "mdb_page_dirty",
line=line@entry=2127, file=0x7f3c0b23e010 "mdb.c") at mdb.c:1542
#9 0x00007f3c0b2306d5 in mdb_page_dirty (mp=<optimized out>,
txn=0x55e2ad7109f0) at mdb.c:2114
#10 mdb_page_dirty (txn=0x55e2ad7109f0, mp=<optimized out>) at mdb.c:2114
#11 0x00007f3c0b231966 in mdb_page_alloc (num=num@entry=1,
mp=mp@entry=0x7f3c0727aee8, mc=<optimized out>) at mdb.c:2308
#12 0x00007f3c0b231ba3 in mdb_page_touch (mc=mc@entry=0x7f3c0727b420) at
mdb.c:2495
#13 0x00007f3c0b2337c7 in mdb_cursor_touch (mc=mc@entry=0x7f3c0727b420) at
mdb.c:6523
#14 0x00007f3c0b2368f9 in mdb_cursor_put (mc=mc@entry=0x7f3c0727b420,
key=key@entry=0x7f3c0727b810, data=data@entry=0x7f3c0727b820,
flags=flags@entry=0) at mdb.c:6657
#15 0x00007f3c0b23976b in mdb_put (txn=0x55e2ad7109f0, dbi=5,
key=key@entry=0x7f3c0727b810, data=data@entry=0x7f3c0727b820,
flags=flags@entry=0) at mdb.c:9022
#16 0x00007f3c0c7124c5 in Baloo::DocumentDB::put
(this=this@entry=0x7f3c0727b960, docId=<optimized out>,
docId@entry=27041423333263366, list=...) at ./src/engine/documentdb.cpp:79
#17 0x00007f3c0c743da7 in Baloo::WriteTransaction::replaceDocument
(this=0x55e2ad7ea340, doc=..., operations=operations@entry=...) at
./src/engine/writetransaction.cpp:232
#18 0x00007f3c0c736b16 in Baloo::Transaction::replaceDocument
(this=this@entry=0x7f3c0727bc10, doc=..., operations=operations@entry=...) at
./src/engine/transaction.cpp:295
#19 0x000055e2ac5d6cbc in Baloo::UnindexedFileIndexer::run
(this=0x55e2ad79ca20) at
/usr/include/x86_64-linux-gnu/qt5/QtCore/qrefcount.h:60
#20 0x00007f3c0c177f82 in QThreadPoolThread::run (this=0x55e2ad717f20) at
thread/qthreadpool.cpp:99
#21 0x00007f3c0c1749d2 in QThreadPrivate::start (arg=0x55e2ad717f20) at
thread/qthread_unix.cpp:361
#22 0x00007f3c0b29d609 in start_thread (arg=<optimized out>) at
pthread_create.c:477
#23 0x00007f3c0bcb6103 in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95
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https://bugs.openldap.org/show_bug.cgi?id=9193
Bug ID: 9193
Summary: HTML in mailing list description
Product: website
Version: unspecified
Hardware: All
OS: All
Status: UNCONFIRMED
Severity: normal
Priority: ---
Component: website
Assignee: bugs(a)openldap.org
Reporter: ryan(a)openldap.org
Target Milestone: ---
e.g. https://lists.openldap.org/postorius/lists/openldap-devel.openldap.org/
contains code for links and formatting, but all inside of a <pre> block.
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https://bugs.openldap.org/show_bug.cgi?id=9341
Issue ID: 9341
Summary: Delta-sync MPR needs to be stable regardless of
ordering
Product: OpenLDAP
Version: unspecified
Hardware: All
OS: All
Status: UNCONFIRMED
Keywords: replication
Severity: normal
Priority: ---
Component: backends
Assignee: bugs(a)openldap.org
Reporter: ondra(a)mistotebe.net
Target Milestone: ---
If two or more updates are spread across several providers before they have a
chance to learn about the others, all replicas need to arrive at the same
content regardless of the order in which they arrive.
One example that is broken at the moment:
- (csn a) server 1 accepts a modify
- (csn b) server 2 accepts a delete on the same DN
- (csn c) server 2 accepts an add on that DN again
If a replica receives the actions in the order bca vs. abc, the content of the
entry will be different even though the final CSN set is the same -> they will
never converge. The ordering 'bac' also needs to result in eventual
convergence, even if it means a refresh or replication from either provider
stalling temporarily?
Merge request with this test case (so far):
https://git.openldap.org/openldap/openldap/-/merge_requests/145
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https://bugs.openldap.org/show_bug.cgi?id=9269
Issue ID: 9269
Summary: "hidden" "subordinate" database is shown in a
directory tree
Product: OpenLDAP
Version: unspecified
Hardware: All
OS: All
Status: UNCONFIRMED
Severity: normal
Priority: ---
Component: slapd
Assignee: bugs(a)openldap.org
Reporter: grapvar(a)gmail.com
Target Milestone: ---
"hidden" configuration option is ignored by slapd (not honored by "glue"
overlay?) if the database it tries to hide is also a "subordinate" database.
Checked for openldap 2.4.47 and current git master (f3952d9).
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https://bugs.openldap.org/show_bug.cgi?id=9229
Bug ID: 9229
Summary: Make liblutil usable by libldap
Product: OpenLDAP
Version: unspecified
Hardware: All
OS: All
Status: UNCONFIRMED
Severity: normal
Priority: ---
Component: build
Assignee: bugs(a)openldap.org
Reporter: ryan(a)openldap.org
Target Milestone: ---
liblutil is a static library (non-PIC) and so cannot be linked into shared
objects, however we have several use cases for reusing its code in libldap.
Some options:
- moving more code from liblutil to libldap
- just merge the whole thing?
- are there components that link liblutil but _not_ libldap?
- build liblutil as PIC (take a minor performance hit when linked into
programs?)
- build liblutil twice (liblutil.a and liblutil_pic.a)
- symlink liblutil sources into libldap build dir, like libldap_r does with
libldap
- both of these last options require checking whether executables can call
the PIC symbols safely (if some symbols are used by both library and program
code)
Nice-to-have for 2.5, I'd say more likely for 2.6 at this point.
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https://bugs.openldap.org/show_bug.cgi?id=9221
Bug ID: 9221
Summary: Move all replication consumer code into its own
overlay
Product: OpenLDAP
Version: 2.5
Hardware: All
OS: All
Status: UNCONFIRMED
Severity: normal
Priority: ---
Component: overlays
Assignee: bugs(a)openldap.org
Reporter: quanah(a)openldap.org
Target Milestone: ---
(In relation to a discussion about slapo-chain)
<hyc> anyway, the nicer ting to fix would be in 2.5, push all of the repl
consumer code into its own overlay
<hyc> in that case, updateref would be processed wherever the overlay was
configured
<hyc> so no longer tied to the frontend
<hyc> it would also make it more feasible to have multiple different consumer
configs in a single DB, each with their own provider URL (and thus their own
updateref)
<hyc> I would think we can get rid of the update ref directive entirely, just
point all writes to that consumer's provider.
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https://bugs.openldap.org/show_bug.cgi?id=9218
Bug ID: 9218
Summary: Revist entry_release handling in slapo-pache,
slapo-translucent
Product: OpenLDAP
Version: 2.5
Hardware: All
OS: All
Status: UNCONFIRMED
Severity: normal
Priority: ---
Component: overlays
Assignee: bugs(a)openldap.org
Reporter: quanah(a)openldap.org
Target Milestone: ---
From a past discussion with hyc on 2.5 items:
[13:57] <hyc> there's a nagging problem though, pcache's entry_release function
needs to distinguish between its backend actually freeing the entry, or being a
no-op
[13:57] <hyc> so it can decide whether to return success or continue
[13:58] <hyc> the patch to translucent sidesteps the question, by avoiding
other overlays
[13:58] <hyc> but we need to revisit this in 2.5
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https://bugs.openldap.org/show_bug.cgi?id=9217
Bug ID: 9217
Summary: Audit all schema definitions to have official
non-experimental OIDs where possible
Product: OpenLDAP
Version: 2.5
Hardware: All
OS: All
Status: UNCONFIRMED
Severity: normal
Priority: ---
Component: slapd
Assignee: bugs(a)openldap.org
Reporter: quanah(a)openldap.org
Target Milestone: ---
From a past discussion with hyc on 2.5 requirements:
[09:27] <hyc> we also need to audit all of these schema defs
[09:27] <hyc> we're supposed to have official, non-experimental OIDs for
released schema
[09:28] <hyc> accesslog is still using 666, experimental arc
[09:29] <hyc> I think this means we should polish up the logschema draft,
Informational status, and publish it again as final
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https://bugs.openldap.org/show_bug.cgi?id=9216
Bug ID: 9216
Summary: Port autoca to gnutls
Product: OpenLDAP
Version: 2.5
Hardware: All
OS: All
Status: UNCONFIRMED
Severity: normal
Priority: ---
Component: overlays
Assignee: bugs(a)openldap.org
Reporter: ryan(a)openldap.org
Target Milestone: ---
For 2.5, support building and running the autoca overlay with GnuTLS.
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https://bugs.openldap.org/show_bug.cgi?id=9278
Issue ID: 9278
Summary: liblmdb: robust mutexes should not be unmapped
Product: LMDB
Version: unspecified
Hardware: All
OS: FreeBSD
Status: UNCONFIRMED
Severity: normal
Priority: ---
Component: liblmdb
Assignee: bugs(a)openldap.org
Reporter: delphij(a)freebsd.org
Target Milestone: ---
Created attachment 736
--> https://bugs.openldap.org/attachment.cgi?id=736&action=edit
A possible workaround
We recently noticed that lmdb would have the memory region containing the
robust mutex unmapped on mdb_env_close0():
munmap((void *)env->me_txns,
(env->me_maxreaders-1)*sizeof(MDB_reader)+sizeof(MDB_txninfo));
Note that if this is the last unmap for a robust mutex, the FreeBSD
implementation would garbage-collect the mutex, making it no longer visible to
other processes. As the result, a second instance of the attached test.c (from
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=244493 with minor changes)
would trigger the assertion at mdb_txn_begin() because the acquisition of the
mutex would return 22 (EINVAL), because the mutex appeared to be a robust
mutex, but was invalid.
The attached lmdb.diff is a possible workaround for this (it would skip
unmapping when setting up the robust mutex for the first time).
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