Uploaded image for project: 'RHEL'
  1. RHEL
  2. RHEL-27176

kdump crash logs are not getting generated with SSH protocol on OCP cluster deployed on Power

Details

    • sst_arch_hw
    • ssg_platform_enablement
    • False
    • Hide

      None

      Show
      None
    • ppc64le

    Description

      What were you trying to do that didn't work?

      Tried enabling kdump with SSH protocol on RHCOS nodes of 4.15.0 cluster deployed on IBM Power.
      The kdump crash log generation is failing with SSH protocol

      How reproducible:

      Always

      Steps to reproduce

      1. Deploy OCP 4.15 cluster on Power architecture
      2. Create Machine config using following content:
      $ cat /etc/kdump.conf
      path /var/crash
      auto_reset_crashkernel yes
      ssh root@<VM-IP>
      sshkey /var/home/core/.ssh/id_rsa
      core_collector makedumpfile -F -l --message-level 7 -d 31
      $ cat /etc/sysconfig/kdump
      KDUMP_COMMANDLINE_REMOVE="hugepages hugepagesz slub_debug quiet log_buf_len swiotlb hugetlb_cma ignition.firstboot rd.multipath=default"
      KDUMP_COMMANDLINE_APPEND="irqpoll maxcpus=1 noirqdistrib reset_devices cgroup_disable=memory numa=off udev.children-max=2 ehea.use_mcs=0 panic=10 kvm_cma_resv_ratio=0 transparent_hugepage=never novmcoredd hugetlb_cma=0 srcutree.big_cpu_lim=0"
      KEXEC_ARGS="--dt-no-old-root -s"
      KDUMP_IMG="vmlinuz" 

      Expected results

      kdump logs should get generated and sent back to the VM

      Actual results

      kdump logs are not getting generated 

      # ls -lart /var/crash
      total 4
      drwxr-xr-x. 21 root root 4096 Feb 22 03:06 ..
      drwxr-xr-x.  2 root root    6 Feb 22 04:24 .

       

      console logs: https://drive.google.com/file/d/1hxLnwuqbWrYqUx8-o9McbJ1D3_Fyn5To/view?usp=sharing

      Attachments

        Activity

          People

            minamdar Mamatha Inamdar
            vahirwad Varad Ahirwadkar
            IBM Confidential Group
            Mamatha Inamdar Mamatha Inamdar
            Brock Organ Brock Organ
            Votes:
            0 Vote for this issue
            Watchers:
            6 Start watching this issue

            Dates

              Created:
              Updated: