That sounds awfully similar to the problem I had in my deployment, which is
described
http://hudson.gotdns.com/wiki/display/SUN/Forked+process+failing+to+exec in details.

In the end I've applied a work around suggested in
http://bugs.opensolaris.org/bugdatabase/view_bug.do?bug_id=6276483 and that got
me going.

Kohsuke, thank you for sharing your findings. After checking one of the hanging
threads via pstack it seems we can second it:

12754: /appl/java1.6/bin/java -server -Xms512m -Xmx512m -Xmn128m -XX:PermSize
ff2c4848 lwp_park (0, 0, 0)
ff2be894 cond_wait_queue (d2d9d8, d2d9c0, 0, 0, 0, 0) + 28
ff2bed0c cond_wait_common (d2d9d8, d2d9c0, 0, 0, 0, 0) + 298
ff2bee14 cond_wait (d2d9d8, d2d9c0, 0, 1, 3, 1cb18) + 10
ff2bee50 pthread_cond_wait (d2d9d8, d2d9c0, ff2f3580, fe46fa00, 0, 0) + 8
fbf9d5f0 kernel_delete_session (d2d9a8, d2d9a0, 0, 1, 3, 1cb18) + 114
fbf9d300 kernel_delete_all_sessions (0, 1, ff3c51b4, 1cd90, fbf91f1c, fbfba000)
+ 98
fbf91eb4 cleanup_library (0, 1, fbfa8440, fbfba000, 28180, 1) + 3c
fbf91f1c kernel_fini (ff3f40fc, 1, ff3c51b4, fbfba000, 28120, fbfba4a4) + 44
fbfa8440 _fini (0, 1, fe46fa00, ff3f4910, ff2c2dec, ff3f6978) + 4
ff3c51b4 call_fini (ff3f40fc, d5520238, fbfa843c, ff3f42e8, ff3f42a0, ff3f4910)
+ cc
ff3cfa60 remove_hdl (d5520238, d45fd7b4, 0, 4000, d5520930, 4821) + ac8
ff3ca0bc dlclose_intn (ff151ca0, ff151008, ff151008, 2a868, fbfd3938, 1) + 24
ff3ca19c dlclose (ff151ca0, 1084, ff151008, 0, 0, 1) + 24
fbfd3938 pkcs11_slottable_delete (1, 442178, 36f690, fbfe6bb0, 0, 1) + 138
fbfce460 pkcs11_fini (fbfe6b8c, 1, ff2b6f08, fbfe6000, 17be4, fbfe6b84) + 4c
ff241e34 _postfork_child_handler (10d8, ff2f3580, 1000, fe46fa00, 0, 4) + 30
ff2b6f08 fork (0, 9c, 0, 8, ff2f3580, fe46fa00) + 13c
fe34a16c Java_java_lang_UNIXProcess_forkAndExec (81c8f4, 0, 19aa2b8, 0, 2, 0) + 290
fc00e1e8 *
java/lang/UNIXProcess.forkAndExec([B[BI[BI[BZLjava/io/FileDescriptor;Ljava/io/FileDescriptor;Ljava/io/FileDescriptor;)I+0
fc00e194 *
java/lang/UNIXProcess.forkAndExec([B[BI[BI[BZLjava/io/FileDescriptor;Ljava/io/FileDescriptor;Ljava/io/FileDescriptor;)I+0
fc005908 * java/lang/UNIXProcess.<init>([B[BI[BI[BZ)V+62 (line 101)
fc7a9abc *
*java/lang/ProcessImpl.start([Ljava/lang/String;Ljava/util/Map;Ljava/lang/String;Z)Ljava/lang/Process;
[compiled] +183 (line 119)
fc0058c0 * java/lang/ProcessBuilder.start()Ljava/lang/Process;+112 (line 895)
fc0058c0 *
java/lang/Runtime.exec([Ljava/lang/String;[Ljava/lang/String;Ljava/io/File;)Ljava/lang/Process;+16
(line 1186)
fc0058c0 *
java/lang/Runtime.exec([Ljava/lang/String;[Ljava/lang/String;)Ljava/lang/Process;+4
(line 1018)
fc5c6ac8 *
*org/tmatesoft/svn/core/internal/wc/SVNFileUtil.execCommand([Ljava/lang/String;[Ljava/lang/String;ZLorg/tmatesoft/svn/core/internal/wc/ISVNReturnValueCallback;)Ljava/lang/String;
[compiled] +47 (line 2608)
fc0058c0 *
org/tmatesoft/svn/core/internal/wc/SVNFileUtil.execCommand([Ljava/lang/String;ZLorg/tmatesoft/svn/core/internal/wc/ISVNReturnValueCallback;)Ljava/lang/String;+4
(line 2594)
fc0058c0 *
org/tmatesoft/svn/core/internal/wc/SVNFileUtil.execCommand([Ljava/lang/String;)Ljava/lang/String;+3
(line 2584)
fc0058c0 *
org/tmatesoft/svn/core/internal/wc/SVNFileUtil.isExecutable(Ljava/io/File;)Z+61
(line 2045)
fc0057e8 *
org/tmatesoft/svn/core/internal/wc/SVNFileUtil.copyFile(Ljava/io/File;Ljava/io/File;Z)V+69
(line 982)
fc005a30 *
org/tmatesoft/svn/core/internal/wc/SVNFileUtil.setReadonly(Ljava/io/File;Z)Z+106
(line 758)
fc0057e8 *
org/tmatesoft/svn/core/internal/wc/admin/SVNAdminArea.markLogProcessed(Ljava/io/File;)V+2
(line 2616)
fc005a30 * org/tmatesoft/svn/core/internal/wc/admin/SVNAdminArea.runLogs()V+107
(line 1105)
fc005a30 *
org/tmatesoft/svn/core/internal/wc/SVNUpdateEditor$SVNDirectoryInfo.runLogs()V+9
(line 3077)
fc005a30 * org/tmatesoft/svn/core/internal/wc/SVNUpdateEditor.closeDir()V+434
(line 944)
fc005a30 *
org/tmatesoft/svn/core/internal/wc/SVNAmbientDepthFilterEditor.closeDir()V+29
(line 234)
fc005f50 *
org/tmatesoft/svn/core/internal/wc/SVNCancellableEditor.closeDir()V+24 (line 198)
fc005f50 *
org/tmatesoft/svn/core/internal/io/dav/handlers/DAVEditorHandler.endElement(Lorg/tmatesoft/svn/core/internal/io/dav/DAVElement;Lorg/tmatesoft/svn/core/internal/io/dav/DAVElement;Ljava/lang/StringBuffer;)V+80
(line 888)
fc005a30 *
org/tmatesoft/svn/core/internal/io/dav/handlers/BasicDAVHandler.endElement(Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;)V+26
(line 185)
fc005f50 *
com/sun/org/apache/xerces/internal/parsers/AbstractSAXParser.endElement(Lcom/sun/org/apache/xerces/internal/xni/QName;Lcom/sun/org/apache/xerces/internal/xni/Augmentations;)V+78
(line 1193)
fc18db48 *
*com/sun/org/apache/xerces/internal/impl/XMLDocumentFragmentScannerImpl.scanEndElement()I
[compiled] +141 (line 3495)
fc18db48 *
*com/sun/org/apache/xerces/internal/impl/XMLDocumentFragmentScannerImpl$FragmentContentDriver.next()I+1406
(line 5573)
fc193e64 *
*com/sun/org/apache/xerces/internal/impl/XMLDocumentScannerImpl.next()I
[compiled] +5 (line 1296)
fc193e64 *
*com/sun/org/apache/xerces/internal/impl/XMLNSDocumentScannerImpl.next()I+32
(line 275)
fc193e64 *
*com/sun/org/apache/xerces/internal/impl/XMLDocumentFragmentScannerImpl.scanDocument(Z)Z+239
(line 938)
fc005d08 *
com/sun/org/apache/xerces/internal/parsers/XML11Configuration.parse(Z)Z+118
(line 1631)
fc0057e8 *
com/sun/org/apache/xerces/internal/parsers/XML11Configuration.parse(Lcom/sun/org/apache/xerces/internal/xni/parser/XMLInputSource;)V+29
(line 1466)
fc005f50 *
com/sun/org/apache/xerces/internal/parsers/XMLParser.parse(Lcom/sun/org/apache/xerces/internal/xni/parser/XMLInputSource;)V+9
(line 213)
fc005a30 *
com/sun/org/apache/xerces/internal/parsers/AbstractSAXParser.parse(Lorg/xml/sax/InputSource;)V+43
(line 2403)
fc005a30 *
com/sun/org/apache/xerces/internal/jaxp/SAXParserImpl$JAXPSAXParser.parse(Lorg/xml/sax/InputSource;)V+43
(line 1038)
fc005f50 *
org/tmatesoft/svn/core/internal/io/dav/http/HTTPConnection.readData(Ljava/io/InputStream;Ljava/lang/String;Ljava/lang/String;Lorg/xml/sax/helpers/DefaultHandler;)Lorg/tmatesoft/svn/core/SVNErrorMessage;+92
(line 1300)
fc0058c0 *
org/tmatesoft/svn/core/internal/io/dav/http/HTTPConnection.readData(Lorg/tmatesoft/svn/core/internal/io/dav/http/HTTPRequest;Ljava/lang/String;Ljava/lang/String;Lorg/xml/sax/helpers/DefaultHandler;)Lorg/tmatesoft/svn/core/SVNErrorMessage;+222
(line 1305)
fc0058c0 *
org/tmatesoft/svn/core/internal/io/dav/http/HTTPRequest.dispatch(Ljava/lang/String;Ljava/lang/String;Lorg/tmatesoft/svn/core/internal/io/dav/http/HTTPHeader;IILorg/tmatesoft/svn/core/SVNErrorMessage;)V+538
(line 352)
fc005a30 *
org/tmatesoft/svn/core/internal/io/dav/http/HTTPConnection.request(Ljava/lang/String;Ljava/lang/String;Lorg/tmatesoft/svn/core/internal/io/dav/http/HTTPHeader;Ljava/io/InputStream;IILjava/io/OutputStream;Lorg/xml/sax/helpers/DefaultHandler;Lorg/tmatesoft/sv+470
(line 570)
fc0058c0 *
org/tmatesoft/svn/core/internal/io/dav/http/HTTPConnection.request(Ljava/lang/String;Ljava/lang/String;Lorg/tmatesoft/svn/core/internal/io/dav/http/HTTPHeader;Ljava/lang/StringBuffer;IILjava/io/OutputStream;Lorg/xml/sax/helpers/DefaultHandler;Lorg/tmatesoft+67
(line 507)
fc0058c0 *
org/tmatesoft/svn/core/internal/io/dav/http/HTTPConnection.request(Ljava/lang/String;Ljava/lang/String;Lorg/tmatesoft/svn/core/internal/io/dav/http/HTTPHeader;Ljava/lang/StringBuffer;IILjava/io/OutputStream;Lorg/xml/sax/helpers/DefaultHandler;)Lorg/tmatesof+15
(line 486)
fc005de0 *
org/tmatesoft/svn/core/internal/io/dav/DAVConnection.doReport(Ljava/lang/String;Ljava/lang/StringBuffer;Lorg/xml/sax/helpers/DefaultHandler;Z)Lorg/tmatesoft/svn/core/internal/io/dav/http/HTTPStatus;+58
(line 508)
fc0058c0 *
org/tmatesoft/svn/core/internal/io/dav/DAVRepository.runReport(Lorg/tmatesoft/svn/core/SVNURL;JLjava/lang/String;Ljava/lang/String;Lorg/tmatesoft/svn/core/SVNDepth;ZZZZZZZLorg/tmatesoft/svn/core/io/ISVNReporterBaton;Lorg/tmatesoft/svn/core/io/ISVNEditor;)V+197
(line 2347)
fc005a30 *
org/tmatesoft/svn/core/internal/io/dav/DAVRepository.update(JLjava/lang/String;Lorg/tmatesoft/svn/core/SVNDepth;ZLorg/tmatesoft/svn/core/io/ISVNReporterBaton;Lorg/tmatesoft/svn/core/io/ISVNEditor;)V+22
(line 2110)
fc005a30 *
org/tmatesoft/svn/core/wc/SVNUpdateClient.doUpdate(Ljava/io/File;Lorg/tmatesoft/svn/core/wc/SVNRevision;Lorg/tmatesoft/svn/core/SVNDepth;ZZ)J+281
(line 439)
fc005950 *
org/tmatesoft/svn/core/wc/SVNUpdateClient.doUpdate(Ljava/io/File;Lorg/tmatesoft/svn/core/wc/SVNRevision;ZZ)J+10
(line 318)
fc005950 *
org/tmatesoft/svn/core/wc/SVNUpdateClient.doUpdate(Ljava/io/File;Lorg/tmatesoft/svn/core/wc/SVNRevision;Z)J+5
(line 310)
fc005950 *
hudson/scm/SubversionSCM$CheckOutTask.invoke(Ljava/io/File;Lhudson/remoting/VirtualChannel;)Ljava/util/List;+157
(line 799)
fc0058c0 *
hudson/scm/SubversionSCM$CheckOutTask.invoke(Ljava/io/File;Lhudson/remoting/VirtualChannel;)Ljava/lang/Object;+3
(line 752)
fc005de0 *
hudson/FilePath.act(Lhudson/FilePath$FileCallable;)Ljava/lang/Object;+53 (line 716)
fc0058c0 *
hudson/scm/SubversionSCM.checkout(Lhudson/model/AbstractBuild;Lhudson/FilePath;Lhudson/model/TaskListener;)Ljava/util/List;+150
(line 735)
fc0058c0 *
hudson/scm/SubversionSCM.checkout(Lhudson/model/AbstractBuild;Lhudson/Launcher;Lhudson/FilePath;Lhudson/model/BuildListener;Ljava/io/File;)Z+5
(line 642)
fc0057e8 *
hudson/model/AbstractProject.checkout(Lhudson/model/AbstractBuild;Lhudson/Launcher;Lhudson/model/BuildListener;Ljava/io/File;)Z+33
(line 1254)
fc0057e8 *
hudson/model/AbstractBuild$AbstractRunner.checkout(Lhudson/model/BuildListener;)Z+35
(line 520)
fc0057e8 *
hudson/model/AbstractBuild$AbstractRunner.run(Lhudson/model/BuildListener;)Lhudson/model/Result;+92
(line 459)
fc005de0 * hudson/model/Run.run(Lhudson/model/Run$Runner;)V+70 (line 1564)
fc005a30 * hudson/maven/MavenModuleSetBuild.run()V+10 (line 410)
fc005f50 *
hudson/model/ResourceController.execute(Ljava/lang/Runnable;Lhudson/model/ResourceActivity;)V+78
(line 129)
fc005a30 * hudson/model/Executor.run()V+140 (line 147)
fc00021c * StubRoutines (1)
fe93344c
_1cJJavaCallsLcall_helper6FpnJJavaValue_pnMmethodHandle_pnRJavaCallArguments_pnGThreadv
(1, f8a50de8, d45ffd78, 81c800, 81d278, d45ffbd0) + 1e4
fec7cb70
_1cJJavaCallsMcall_virtual6FpnJJavaValue_nLKlassHandle_nMsymbolHandle_4pnRJavaCallArguments_pnGThreadv
(d45ffe90, 81d27c, ff133828, 81d288, d45ffd78, 81c800) + ec
fe9d3ce0
_1cJJavaCallsMcall_virtual6FpnJJavaValue_nGHandle_nLKlassHandle_nMsymbolHandle_5pnGThreadv
(d45ffe90, d45ffe8c, d45ffe88, d45ffe84, d45ffe80, 81d27c) + 74
fe9e734c _1cMthread_entry6FpnKJavaThread_pnGThreadv (f7c321e8, 81c800,
49400, ff133a8c, ff133828, ff13359c) + 110
fef17674 _1cKJavaThreadRthread_main_inner6M_v (81c800, 81ce78, 21, 16,
ff0ea000, 0) + 48
fee6d148 java_start (81c800, 1f, 1e3e, ff0ea000, ff05d875, ff121914) + 168
ff2c47a8 _lwp_start (0, 0, 0, 0, 0, 0)

We'll apply the suggested workaround of modifying jre/lib/security/java.security
and making sure that the Solaris box gets the proper kernel patch applied.

But how about supporting javahl as alternate SVN access API in Hudson?

Subclipse uses an adapter
http://subclipse.tigris.org/source/browse/subclipse/trunk/svnClientAdapter/
which supports JavaHL, SVNKit and the svn command line client
http://subclipse.tigris.org/source/browse/*checkout*/subclipse/trunk/svnClientAdapter/readme.txt?rev=2846

Maybe this library can be leveraged here. It's licensed under APL 2.0
http://subclipse.tigris.org/source/browse/*checkout*/subclipse/trunk/svnClientAdapter/license.txt?rev=3041

• • • Issue 542 has been marked as a duplicate of this issue. ***

There's a new discussion regarding issues with svnkit started:

Slow checkouts on Solaris due to missing JNA support
http://www.nabble.com/Slow-subversion-checkouts-td23397590.html

This would help - tremendously - with performance. We have a project which takes 02m:30s using the native client, and takes more than 30minutes, sometimes 50+ minutes for the same task. It contains a linux kernel tree and some other code...