[dpdk-dev] [Bug 15] Kernel crash after "Detected Tx Unit Hang" report

[bugzilla at dpdk.org]

https://dpdk.org/tracker/show_bug.cgi?id=15

            Bug ID: 15
           Summary: Kernel crash after "Detected Tx Unit Hang" report
           Product: DPDK
           Version: 17.11
          Hardware: x86
                OS: Linux
            Status: CONFIRMED
          Severity: critical
          Priority: Normal
         Component: core
          Assignee: dev at dpdk.org
          Reporter: batmanustc at gmail.com
  Target Milestone: ---

How to produce: same step as bug(https://dpdk.org/tracker/show_bug.cgi?id=14)

kernel log:
Feb 06 19:01:40 yf-mos-test-net20 kernel: Detected Tx Unit Hang
                                            Tx Queue             <0>
                                            TDH, TDT             <0>, <6>
                                            next_to_use          <6>
                                            next_to_clean        <0>
                                          tx_buffer_info[next_to_clean]
                                            next_to_watch              
<ffff8801a070c010>
                                            eop_desc->wb.status  <128280>
                                            time_stamp           <13079e940>
                                            jiffies              <13079ee06>
Feb 06 19:01:40 yf-mos-test-net20 ovs-vswitchdm[13237]: PMD: VF 0: disabling
multicast promiscuous

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