https://bugs.freedesktop.org/show_bug.cgi?id=86745
Bug ID: 86745
Summary: Possible exception/segfault in jurt jpipe.dll under
Windows with pipe connection
Product: LibreOffice
Version: 4.5.0.0.alpha0+ Master
Hardware: x86 (IA32)
OS: Windows (All)
Status: UNCONFIRMED
Severity: normal
Priority: medium
Component: Writer
Assignee: [email protected]
Reporter: [email protected]
Created attachment 110072
--> https://bugs.freedesktop.org/attachment.cgi?id=110072&action=edit
Test this exception with this JAVA Class
On Windows when you start a java-uno-connection via pipe then on some machines
you can get the following exception/segfault in the jpipe.dll.
Detailed Description (sorry for the German UI language settings):
Problemereignisname: APPCRASH
Anwendungsname: javaw.exe
Anwendungsversion: 7.0.110.21
Anwendungszeitstempel: 50f13a25
Fehlermodulname: jpipe.dll
Fehlermodulversion: 4.2.5.2
Fehlermodulzeitstempel: 53bc1d00
Ausnahmecode: c00000fd
Ausnahmeoffset: 000011c7
Betriebsystemversion: 6.1.7601.2.1.0.256.48
Gebietsschema-ID: 1031
Zusatzinformation 1: 022d
Zusatzinformation 2: 022d20d2f136501747c7b284fa79af41
Zusatzinformation 3: 171f
Zusatzinformation 4: 171fb495ef00f99cffbb09f85224e710
The problem is reprocible with LO 4.2.5 and current master.
How to reproduce:
- Download
http://wollmux.googlecode.com/files/wollmux-config-de-utf8-11.11a.tar.gz and
extracting in your home-dir e.g. C:\Users\<user-name>
- Copy the WollMuxBar.jar in your preferred directory
- Start with:
"c:\Program Files (x86)\Java\jdk1.7.0_67/bin\java.exe" -cp
"WollMuxBar.jar;<Your-Path>\lo-core\instdir\URE\java\juh.jar;<Your-Path>\lo-core\instdir\program\classes\unoil.jar"
de.muenchen.allg.itd51.wollmux.dialog.WollMuxBar
- Sometimes now the segfault appears
When the bar appears you are a lucky guy, but you were not able to reproduce
the bug - it is a sporadic bug.
Analysis result / solution:
In the jpipe.dll DLLMain there's a call to the WinApi's LoadLibraryExW function
and that is not allowed. Please see
http://msdn.microsoft.com/en-us/library/windows/desktop/ms682583(v=vs.85).aspx
in the Remarks section. It is clearly mentioned there, that the behaviour for
such usage is not defined and risky.
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