When I cancel a job (using the "x" button on the right side of a job in the
Build Executor Status table), then the job AND all following jobs are canceled.
Seems to be a global cancel rather than a project specific cancel.

E.g., I have a 1 item queue with job "analysis" running and job "compile"
waiting. After pressing cancel for analysis and waiting some time, the analysis
job has been canceled (ok) but also the compile job has been canceled (nok).

Hudson shows the following log:

started
Updating svn://tux18.sys.net/adt/trunk/adt/sources
ERROR: Failed to update svn://tux18.sys.net/adt/trunk/adt/sources
org.tmatesoft.svn.core.SVNCancelException: svn: Operation cancelled
at
hudson.scm.SubversionUpdateEventHandler.checkCancelled(SubversionUpdateEventHandler.java:191)
at org.tmatesoft.svn.core.wc.SVNBasicClient.checkCancelled(SVNBasicClient.java:334)
at
org.tmatesoft.svn.core.internal.wc.admin.SVNWCAccess.checkCancelled(SVNWCAccess.java:75)
at
org.tmatesoft.svn.core.internal.wc.admin.SVNWCAccess.doOpen(SVNWCAccess.java:359)
at org.tmatesoft.svn.core.internal.wc.admin.SVNWCAccess.open(SVNWCAccess.java:261)
at
org.tmatesoft.svn.core.internal.wc.admin.SVNWCAccess.openAnchor(SVNWCAccess.java:153)
at org.tmatesoft.svn.core.wc.SVNUpdateClient.doUpdate(SVNUpdateClient.java:145)
at hudson.scm.SubversionSCM$CheckOutTask.invoke(SubversionSCM.java:382)
at hudson.scm.SubversionSCM$CheckOutTask.invoke(SubversionSCM.java:354)
at hudson.FilePath.act(FilePath.java:312)
at hudson.scm.SubversionSCM.checkout(SubversionSCM.java:348)
at hudson.scm.SubversionSCM.checkout(SubversionSCM.java:301)
at hudson.model.AbstractProject.checkout(AbstractProject.java:564)
at hudson.model.AbstractBuild$AbstractRunner.checkout(AbstractBuild.java:244)
at hudson.model.AbstractBuild$AbstractRunner.run(AbstractBuild.java:218)
at hudson.model.Run.run(Run.java:749)
at hudson.model.Build.run(Build.java:102)
at hudson.model.ResourceController.execute(ResourceController.java:70)
at hudson.model.Executor.run(Executor.java:71)