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  1. JDK
  2. JDK-6624838

SIGQUIT ignored on linux

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    Details

    • Type: Bug
    • Status: Closed
    • Priority: P4
    • Resolution: Not an Issue
    • Affects Version/s: 5.0u13
    • Fix Version/s: None
    • Component/s: hotspot
    • Labels:
    • Subcomponent:
    • CPU:
      x86
    • OS:
      linux_2.6

      Description

      SIGQUIT is ignored on Linux by the first java process in process tree. It is accepted by java process on the third level. I faced this when running NetBeans IDE on JDK1.5.0_13-b03 and Linux deadlock.nbextras.org 2.6.18-4-vserver-amd64 #1 SMP Mon Mar 26 11:50:08 CEST 2007 x86_64 GNU/Linux.

      $ pstree -plaA 3213

      java,3213 -Djdk.home=/opt/jdk1.5.0_13 -classpath/hudson/workdir/jobs/testsSandb
        `-java,3214 -Djdk.home=/opt/jdk1.5.0_13 -classpath/hudson/workdir/jobs/testsS
            |-java,3215 -Djdk.home=/opt/jdk1.5.0_13 -classpath/hudson/workdir/jobs/te
            |-java,3216 -Djdk.home=/opt/jdk1.5.0_13 -classpath/hudson/workdir/jobs/te
      ...and more 40 java processes

      kill -QUIT 3213 - ignored
      kill -QUIT 3214 - ignored
      kill -QUIT 3215 - accepted => thread dump generated
      New description from the submitter:

      To reproduce:

      - run NetBeans IDE on Linux (http://bits.netbeans.org/download/6.5/m1/)
      - find out parent java process id (it is 3213 in the description)
      - run 'pstree -plaA 3213'
      - try:
          kill -QUIT 3213 (it is ignored)
          kill -QUIT 3214 (it is ignored)
          kill -QUIT 3215 (not ignored and thread dump is printed out)

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            Assignee:
            ikrylov Ivan Krylov
            Reporter:
            duke J. Duke (Inactive)
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