I have a slave with bad IO, and doing a full checkout for my project from that node takes a while, unfortunately the webserver serving the remote repo seems to drop the connection after a few hours.
I would expect that in this case, the "SCM checkout retry count" kicks in, and jenkins would continue the checkout, but I'm seeing the following exception instead

ERROR: Failed to update http://svn.php.net/repository/php/php-src/branches/PHP_5_4
org.tmatesoft.svn.core.SVNException: svn: REPORT /repository/!svn/vcc/default failed
at org.tmatesoft.svn.core.internal.io.dav.http.HTTPConnection.request(HTTPConnection.java:298)
at org.tmatesoft.svn.core.internal.io.dav.http.HTTPConnection.request(HTTPConnection.java:283)
at org.tmatesoft.svn.core.internal.io.dav.http.HTTPConnection.request(HTTPConnection.java:271)
at org.tmatesoft.svn.core.internal.io.dav.DAVConnection.doReport(DAVConnection.java:283)
at org.tmatesoft.svn.core.internal.io.dav.DAVRepository.runReport(DAVRepository.java:1282)
at org.tmatesoft.svn.core.internal.io.dav.DAVRepository.update(DAVRepository.java:830)
at org.tmatesoft.svn.core.wc.SVNUpdateClient.update(SVNUpdateClient.java:564)
at org.tmatesoft.svn.core.wc.SVNUpdateClient.doUpdate(SVNUpdateClient.java:401)
at hudson.scm.subversion.UpdateUpdater$TaskImpl.perform(UpdateUpdater.java:135)
at hudson.scm.subversion.WorkspaceUpdater$UpdateTask.delegateTo(WorkspaceUpdater.java:136)
at hudson.scm.SubversionSCM$CheckOutTask.perform(SubversionSCM.java:787)
at hudson.scm.SubversionSCM$CheckOutTask.invoke(SubversionSCM.java:768)
at hudson.scm.SubversionSCM$CheckOutTask.invoke(SubversionSCM.java:752)
at hudson.FilePath$FileCallableWrapper.call(FilePath.java:1994)
at hudson.remoting.UserRequest.perform(UserRequest.java:118)
at hudson.remoting.UserRequest.perform(UserRequest.java:48)
at hudson.remoting.Request$2.run(Request.java:287)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:441)
at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
at java.util.concurrent.FutureTask.run(FutureTask.java:138)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:885)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:907)
at hudson.remoting.Engine$1$1.run(Engine.java:60)
at java.lang.Thread.run(Thread.java:619)
Caused by: org.tmatesoft.svn.core.SVNErrorMessage: svn: REPORT /repository/!svn/vcc/default failed
at org.tmatesoft.svn.core.SVNErrorMessage.create(SVNErrorMessage.java:200)
at org.tmatesoft.svn.core.SVNErrorMessage.create(SVNErrorMessage.java:146)
at org.tmatesoft.svn.core.SVNErrorMessage.create(SVNErrorMessage.java:89)
... 24 more
Caused by: org.tmatesoft.svn.core.SVNException: svn: REPORT request failed on '/repository/!svn/vcc/default'
svn: Processing REPORT request response failed: Premature end of file. (/repository/!svn/vcc/default)
at org.tmatesoft.svn.core.internal.wc.SVNErrorManager.error(SVNErrorManager.java:64)
at org.tmatesoft.svn.core.internal.wc.SVNErrorManager.error(SVNErrorManager.java:51)
at org.tmatesoft.svn.core.internal.io.dav.http.HTTPConnection._request(HTTPConnection.java:662)
at org.tmatesoft.svn.core.internal.io.dav.http.HTTPConnection.request(HTTPConnection.java:292)
... 23 more
Caused by: org.tmatesoft.svn.core.SVNErrorMessage: svn: REPORT request failed on '/repository/!svn/vcc/default'
at org.tmatesoft.svn.core.SVNErrorMessage.create(SVNErrorMessage.java:200)
at org.tmatesoft.svn.core.internal.io.dav.http.HTTPConnection._request(HTTPConnection.java:660)
... 24 more
Caused by: org.tmatesoft.svn.core.SVNErrorMessage: svn: Processing REPORT request response failed: Premature end of file. (/repository/!svn/vcc/default)
at org.tmatesoft.svn.core.SVNErrorMessage.create(SVNErrorMessage.java:200)
at org.tmatesoft.svn.core.SVNErrorMessage.create(SVNErrorMessage.java:181)
at org.tmatesoft.svn.core.SVNErrorMessage.create(SVNErrorMessage.java:133)
at org.tmatesoft.svn.core.internal.io.dav.http.HTTPConnection.readData(HTTPConnection.java:790)
at org.tmatesoft.svn.core.internal.io.dav.http.HTTPConnection.readData(HTTPConnection.java:741)
at org.tmatesoft.svn.core.internal.io.dav.http.HTTPRequest.dispatch(HTTPRequest.java:218)
at org.tmatesoft.svn.core.internal.io.dav.http.HTTPConnection._request(HTTPConnection.java:379)
... 24 more
FATAL: null
java.lang.NullPointerException
at java.util.ArrayList.addAll(ArrayList.java:497)
at hudson.scm.SubversionSCM.checkout(SubversionSCM.java:742)
at hudson.scm.SubversionSCM.checkout(SubversionSCM.java:684)
at hudson.model.AbstractProject.checkout(AbstractProject.java:1193)
at hudson.model.AbstractBuild$AbstractRunner.checkout(AbstractBuild.java:555)
at hudson.model.AbstractBuild$AbstractRunner.run(AbstractBuild.java:443)
at hudson.model.Run.run(Run.java:1376)
at hudson.matrix.MatrixRun.run(MatrixRun.java:146)
at hudson.model.ResourceController.execute(ResourceController.java:88)
at hudson.model.Executor.run(Executor.java:175)