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  1. RHEL
  2. RHEL-95357

KVM guest gets rebooted automatically after entering the kdump emergency shell for a while

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    • Icon: Bug Bug
    • Resolution: Unresolved
    • Icon: Undefined Undefined
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    • rhel-10.1
    • kdump-utils
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    • Yes
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    • rhel-kernel-debug
    • ssg_core_kernel
    • 0
    • False
    • False
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      What were you trying to do that didn't work?

      I entered the kdump emergency shell to debug an issue but the system got rebooted automatically after a few minutes.

      What is the impact of this issue to you?

      kdump emergency shell (failure_action shell) is unusable.

      Please provide the package NVR for which the bug is seen:

      kdump-utils-1.0.54-1.el10.x86_64

      rhel-guest-image-10.1-20250603.1.x86_64.qcow2

      How reproducible is this bug?:

      always

      Steps to reproduce

      1.  Use virt-install --import to install RHEL10 guest machine e.g. rhel-guest-image-10.1-20250603.1.x86_64.qcow2
      2. kdumpctl restart
      3.  printf "core_collector nop\nfailure_action shell\n" > /etc/kdump.conf
      4.  kdumpctl restart
      5.  trigger sysrq

      Expected results

      I can stay in the emergency shell as long as I want.

      Actual results

      The system gets rebooted automatically.

      Additional notes

      1. The system won't be rebooted if I change watchdog action from action=reset to action=none by "virsh edit GUEST_NAME",

      <watchdog model='itco' action='none'>
        <alias name='watchdog0'/>
      </watchdog>
      

      2. rhel-guest-image-10.0-20250111.0.x86_64.qcow2 also have this issue but not RHEL9 guest image.

              kdump-bugs@redhat.com kdump team
              coxu@redhat.com Coiby Xu
              kdump team kdump team
              kdump team kdump team
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                Created:
                Updated: