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  1. JBoss Enterprise Application Platform
  2. JBEAP-15330

[GSS](7.1.z) UNDERTOW-1231/UNDERTOW-1179 - Deadlock AbstractFramedChannel when notifyClosed and markStreamBroken are called related to Http2Channel

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      Hello,
      we are using Wildfly 10.1.0.Final Full Profile for a production app.

      Because of XNIO-276, where in our case the CPU load went around every 3 weeks to 100%, we update in May our XNIO library to 3.4.5 and our Undertow server to 1.4.14.

      Since around 2 month we are seeing deadlocks in undertow like the one in UNDERTOW-1074. So we updated around a month to Undertow 1.4.20 because we though according to the issue it should be fixed in 1.4.15 unfortunately we are still seeing these deadlocks.

      I attached 3 stacktraces from our system.

      This bug is related to: UNDERTOW-1074

        1. jstack_02.11.2017_10-19-02.txt
          112 kB
        2. jstack_16.10.2017_09-12-59.txt
          128 kB
        3. jstack_25.10.2017_10-40-07.txt
          122 kB

              thofman Tomas Hofman
              rhn-support-lkonno Leticia Konno
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                Resolved: