You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
91 lines
3.5 KiB
91 lines
3.5 KiB
KDUMP TESTS AUTOMATION SUITE
|
|
----------------------------
|
|
|
|
The kdump test automation suite helps run the kdump tests and report
|
|
results. The testscripts cycle through a series of crash
|
|
scenarios. Each test cycle does the following:
|
|
|
|
1. Sets up a crash scenario.
|
|
2. Forces a crash.
|
|
3. Kdump kernel boots and saves a vmcore.
|
|
4. System reboots to 1st kernel.
|
|
5. vmcore is validated and results are saved.
|
|
6. After a 1 to 2 minute delay, the next crash scenario is setup and
|
|
run.
|
|
|
|
The scripts make use of the crasher module for basic testing of kdump
|
|
and the new Linux Kernel Dump Test Module (LKDTM) for more involved
|
|
testing. LKDTM makes use of the kprobes infrastructure for inserting
|
|
crashpoints into the kernel at run-time. Thus the kernel need not be
|
|
patched and rebuilt.This script also tests kdump dumping on different
|
|
destinations like ext3, raw and network dump.
|
|
|
|
KDUMP TEST INSTRUCTION
|
|
----------------------
|
|
|
|
Follow the steps to setup kdump test automation suite.
|
|
|
|
The tests are written for SuSE Linux Enterprise Server 10 (and onward
|
|
releases), OpenSUSE, Fedora, Debian, as well as RedHat Enterprise Linux
|
|
5. Since KDUMP is supported by the above mentioned distro's the tests
|
|
were written and tested on them. Contribution towards supporting more
|
|
distributions are welcome.
|
|
|
|
1. Install these additional packages:
|
|
|
|
For SLES10 or OpenSUSE Distro :
|
|
|
|
* kernel-kdump
|
|
* kernel-source
|
|
* kexec-tools
|
|
* zlib-64bit-<xxx> (ppc64 only)
|
|
* expect (if dump to a network destination)
|
|
|
|
For RHEL5 or Fedora distro :
|
|
|
|
* kexec-tools
|
|
* kernel-devel
|
|
* kernel-debuginfo rpm (if using crash to verify vmcore)
|
|
* kernel-kdump ( only for ppc64 )
|
|
* expect (if dump to a network destination)
|
|
|
|
2. Make sure the partition where the tests are running has space for
|
|
the tests results and one vmcore file (size of physical memory).
|
|
|
|
3. Modify configuration file runkdump.conf or copy a existing one from
|
|
sample/.
|
|
|
|
4. Run "runkdump.sh". Carefully check for any errors.
|
|
|
|
Few Important points to remember:
|
|
|
|
* If you need to stop the tests before all tests have run, run "crontab
|
|
-r" and "killall runkdump.sh" within 1 minute after the 1st kernel
|
|
reboots. Then, if you'd like to carry on tests from the point on, run
|
|
"crontab kdump.cron", and "./runkdump.sh". If you'd like to start tests
|
|
from the beginning, modify the configuration file, and set
|
|
"REBOOT=0". Then, "./runkdump.sh"
|
|
|
|
* A failure is likely to occur when booting the kdump kernel. If this
|
|
happens, you'll need to manually reset the system so it reboots back to
|
|
the 1st kernel and continues on to the next test. For this reason, it's
|
|
best to monitor the tests from a console. If possible, setup a serial
|
|
console (not a must, any type of console setup will do). If using
|
|
minicom, enable saving of kernel messages displayed on minicom into a
|
|
file, by pressing ctrl+a+l on the console. Else, when it is observed
|
|
that the kdump kernel has failed to boot, manually copy the boot message
|
|
into a file to enable the debugging the cause of the hang.
|
|
|
|
* The results are saved in
|
|
<kdump-test-dir>/log/<hostname>.<date-time>. The "status" file in that
|
|
directory shows where you are in the test run. When the "Test run
|
|
complete" entry appears in that file, you're done. Verbose log can be
|
|
found at /tmp/kdump.log.
|
|
|
|
* The test machine would be unavailable for any other work during the
|
|
period of the test run.
|
|
|
|
* System may hang if incorrect partition information is provided for
|
|
dumping, like specifying a partition which does not exist, specifying a
|
|
partition label which does not exist. This is not ltp kdump bug.
|