Re: (ITS#7723) slapd crashes on multi core machines if a search request is *immediately* followed by an unbind
4:10 a.m.
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It is not the client loop that is multithreading but the ldap server.
And it is not a misuse of the API but a problem that may be raised by day t=
o day network problems.
I've boiled down the problem to a few simple configurations that work (or b=
etter, fail ;-) with both 2.4.23 and 2.4.36. A tgz file containing a setup =
with start script and testclient is attached. It should be sufficient to re=
produce the fault.
The problem occurs only if we use session variable substitution in the rwm =
overlay, and only if a search is *immediately* (e.g. caused by network loss=
and client timeout) followed by an unbind.
Mit freundlichen Gr=FC=DFen / Kind regards
Michael Vishchers
Senior System Engineer
7P Solutions & Consulting AG
Calor-Emag-Stra=DFe 1
40878 Ratingen
Phone : +49-2102-5354-356
Fax : +49-2102-5354-111
Email : michael.vishchers@7p-group.com<mailto://michael.vishchers@7P-Grou=
p.com>
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<div style=3D"direction: ltr;font-family: Tahoma;color: #000000;font-size: =
10pt;">It is not the client loop that is multithreading but the ldap server=
.<br>
<br>
And it is not a misuse of the API but a problem that may be raised by day t=
o day network problems.<br>
<br>
I've boiled down the problem to a few simple configurations that work (or b=
etter, fail ;-) with both 2.4.23 and 2.4.36. A tgz file containing a setup =
with start script and testclient is attached. It should be sufficient to re=
produce the fault.
<br>
<br>
The problem occurs only if we use session variable substitution in the rwm =
overlay, and only if a search is *immediately* (e.g. caused by network loss=
and client timeout) followed by an unbind.<br>
<div><br>
<div style=3D"font-family: Tahoma; font-size: 13px;">
<div style=3D"font-family: Arial; font-size: 13px;">Mit freundlichen
Gr=FC=
=DFen / Kind regards<br>
Michael Vishchers<br>
Senior System Engineer<br>
<br>
7P Solutions & Consulting AG<br>
Calor-Emag-Stra=DFe 1<br>
40878 Ratingen<br>
<br>
Phone : +49-2102-5354-356<br>
Fax :
+49-2102-5354-111<br>
Email : <a
href=3D"mailto://michael.vishchers@7P-Group.com" tab=
index=3D"0">michael.vishchers(a)7p-group.com</a><br>
Home : <a href=3D"http://www.7P-Group.com"
tabindex=3D"0">www.7=
p-group.com</a><br>
<br>
<p class=3D"MsoNormal" style=3D"margin-bottom: 12pt; color: rgb(153,
153, 1=
53);"><font style=3D"color: rgb(192, 192, 192);"
size=3D"1"><span style=3D"=
font-size: 10pt; font-family: "Arial
Narrow","sans-serif&quo=
t;;">Sitz der Gesellschaft: K=F6ln<br>
Registriergericht: Amtsgericht K=F6ln<br>
Handelsregister: HRB 32361<br>
Aufsichtsratsvorsitzender: Dr. Kai H=F6hmann<br>
Vorstand: Jens Harig (Vorsitzender), Dr. Joachim Philippi<br>
USt-ID-Nr.: DE197820124<br>
Steuer-Nr.: 215/5917/1764</span></font><b><i><span
style=3D""></span></i></=
b></p>
<p class=3D"MsoNormalCxSpMiddle" style=3D"margin-bottom: 12pt; color:
rgb(1=
53, 153, 153);">
<b><i><span style=3D"font-size: 9.5pt; font-family: "Arial
Narrow"=
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Sie=
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