3:50 a.m.
https://bugs.openldap.org/show_bug.cgi?id=9789
Issue ID: 9789
Summary: syncprov uses a thread-local counters for the detached
op
Product: OpenLDAP
Version: unspecified
Hardware: All
OS: All
Status: UNCONFIRMED
Keywords: needs_review
Severity: normal
Priority: ---
Component: slapd
Assignee: bugs(a)openldap.org
Reporter: ondra(a)mistotebe.net
Target Milestone: ---
Persistent searches routinely migrate across threads, however they keep using
op->o_counters from the original search op which is meant to be thread-local.
During shutdown, this counter can be destroyed as the original thread finishes,
but the persistent search might still be live somewhere else. At that point,
trying to acquire the destroyed sc_mutex fails and the thread usually stalls
forever.
slapd-asyncmeta is very likely to suffer from the same issues.
A representative backtrace of this happening:
Thread 3 (Thread 0x7f0b7d933640 (LWP 2928392) "slapd"):
#0 futex_wait (private=0, expected=2, futex_word=0x7f0b74000ff8) at
../sysdeps/nptl/futex-internal.h:146
#3 0x00007f0b7fd17a05 in ldap_pvt_thread_mutex_lock (mutex=Locked by LWP 0) at
thr_posix.c:313
#4 0x0000000000469564 in slap_send_search_entry (op=Search request conn=1003
op=1 = {...}, rs=Search entry = {...}) at result.c:1503
#5 0x00007f0b7f30561c in syncprov_sendresp (op=Search request conn=1003 op=1 =
{...}, ri=0x7f0b701eb8e0, so=0x7f0b74102b20, mode=1) at syncprov.c:976
#6 0x00007f0b7f305064 in syncprov_qplay (op=Search request conn=1003 op=1 =
{...}, so=0x7f0b74102b20) at syncprov.c:1028
#7 0x00007f0b7f304ecc in syncprov_qtask (ctx=0x7f0b7d932a58,
arg=0x7f0b74102b20) at syncprov.c:1086
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9:44 a.m.
New subject: [Issue 9789] syncprov uses a thread-local counters for the detached op
https://bugs.openldap.org/show_bug.cgi?id=9789
Quanah Gibson-Mount <quanah(a)openldap.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Keywords|needs_review |
Ever confirmed|0 |1
Target Milestone|--- |2.5.12
Assignee|bugs(a)openldap.org |ondra(a)mistotebe.net
Status|UNCONFIRMED |IN_PROGRESS
--- Comment #1 from Quanah Gibson-Mount <quanah(a)openldap.org> ---
https://git.openldap.org/openldap/openldap/-/merge_requests/481
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9:16 a.m.
New subject: [Issue 9789] syncprov uses a thread-local counters for the detached op
https://bugs.openldap.org/show_bug.cgi?id=9789
Quanah Gibson-Mount <quanah(a)openldap.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Resolution|--- |FIXED
Status|IN_PROGRESS |RESOLVED
--- Comment #2 from Quanah Gibson-Mount <quanah(a)openldap.org> ---
head:
• ebfbf828
by Ondřej Kuzník at 2022-01-26T18:55:41+00:00
ITS#9789 Expose operation_counter_init
• ebc73697
by Ondřej Kuzník at 2022-01-26T18:55:41+00:00
ITS#9789 slapo-syncprov: Reset op->o_counters every time we migrate to a new
thread
• f5d86968
by Ondřej Kuzník at 2022-01-26T18:55:41+00:00
ITS#9789 slapd-asyncmeta: Reset op->o_counters every time we migrate to a new
thread
• 209ee9b0
by Ondřej Kuzník at 2022-01-26T18:55:41+00:00
ITS#9789 slapo-vc: Reset op->o_counters every time we migrate to a new thread
RE26:
• 4118a8d8
by Ondřej Kuzník at 2022-01-31T20:05:21+00:00
ITS#9789 Expose operation_counter_init
• 84ea1426
by Ondřej Kuzník at 2022-01-31T20:05:25+00:00
ITS#9789 slapo-syncprov: Reset op->o_counters every time we migrate to a new
thread
• 8871a074
by Ondřej Kuzník at 2022-01-31T20:05:28+00:00
ITS#9789 slapd-asyncmeta: Reset op->o_counters every time we migrate to a new
thread
• dfc9efb8
by Ondřej Kuzník at 2022-01-31T20:05:32+00:00
ITS#9789 slapo-vc: Reset op->o_counters every time we migrate to a new thread
RE25:
• b84eddaf
by Ondřej Kuzník at 2022-02-02T17:12:15+00:00
ITS#9789 Expose operation_counter_init
• 2fdcca79
by Ondřej Kuzník at 2022-02-02T17:12:19+00:00
ITS#9789 slapo-syncprov: Reset op->o_counters every time we migrate to a new
thread
• 6cd3cc76
by Ondřej Kuzník at 2022-02-02T17:12:23+00:00
ITS#9789 slapd-asyncmeta: Reset op->o_counters every time we migrate to a new
thread
• 5e1531e1
by Ondřej Kuzník at 2022-02-02T17:12:27+00:00
ITS#9789 slapo-vc: Reset op->o_counters every time we migrate to a new thread
• d1490013
by Quanah Gibson-Mount at 2022-02-02T17:12:44+00:00
ITS#9789
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10:34 a.m.
New subject: [Issue 9789] syncprov uses a thread-local counters for the detached op
https://bugs.openldap.org/show_bug.cgi?id=9789
--- Comment #3 from Quanah Gibson-Mount <quanah(a)openldap.org> ---
head:
• 94d5180f
by Howard Chu at 2022-05-02T17:40:19+01:00
ITS#9789 slapo-vc: fix typo in prev commit
RE26:
• 75ca4779
by Howard Chu at 2022-05-02T17:12:39+00:00
ITS#9789 slapo-vc: fix typo in prev commit
RE25:
• 1d3fb3cc
by Howard Chu at 2022-05-02T17:13:06+00:00
ITS#9789 slapo-vc: fix typo in prev commit
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9:25 a.m.
New subject: [Issue 9789] syncprov uses a thread-local counters for the detached op
https://bugs.openldap.org/show_bug.cgi?id=9789
Quanah Gibson-Mount <quanah(a)openldap.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|RESOLVED |VERIFIED
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