QA:Testcase Kdump Func NFS

Setup

1. Prepare a NFS server, edit /etc/exports, append this line:

   /mnt/testarea/nfs *(rw,no_root_squash,sync)

   Restart NFS service:

    service nfs restart 

2. Install Fedora on your machine
3. After system installed, check if kexec-tools kernel-debuginfo and crash is installed via

   rpm -q kexec-tools kernel-debuginfo crash

   Or via yum

   yum install kexec-tools kernel-debuginfo crash

4. Reserve crashkernel for kdump by grubby

   grubby --args="crashkernl=128M" --update-kernel=$(grubby --default-kernel)

   Reboot system and check /proc/cmdline

   cat /proc/cmdline | grep "crashkernel"

5. Edit /etc/kdump.conf, add this line:

   net my.server.com:/mnt/testarea/nfs

   core_collector makedumpfile -c -d 31

6. Apply changes and start kdump via

   service kdump restart

How to test

1. Trigger crash via:

   echo c > /proc/sysrq-trigger

2. Use crash to analyse vmcore:

        mount -t nfs my.server.com:/mnt/testarea/nfs /var/crash/
        crash -i crash-simple.cmd /usr/lib/debug/lib/modules/xxx/vmlinux /var/crash/xxx/vmcore
        crash -i crash.cmd /usr/lib/debug/lib/modules/xxx/vmlinux /var/crash/xxx/vmcore

Expected Results

1. Dump process could be monitered if console is connected
2. System reboot successfully after dump vmcore finshed
3. vmcore was found on NFS server
4. No warning or error should be should found on crash output