[Crash-utility] crash version 4.0-3.1 is available

Dave Anderson anderson at redhat.com
Fri Aug 4 17:55:33 UTC 2006


- Fix to address 2.6.18 and later Fedora 2.6.17-based kernel data
  structure name change from "runqueue" to "rq".  This would cause
  crash to fail during initialization with a "crash: cannot determine
  idle task addresses from init_tasks[] or runqueues[]" message,
  followed by a red herring message: "crash: cannot resolve
  init_task_union".  (haren at us.ibm.com)

- Added 4-level pagetable support for ia64.  Since this is based
  upon whether the kernel was built with CONFIG_PGTABLE_4, the
  determination of whether the crash utility uses 4-level page
  tables is based upon one of two possibilities: the "automatic"
  manner depends upon the kernel also being configured with
  CONFIG_IKCONFIG; otherwise it will require the commmand line
  option "--machdep vm=4l".  (troy.heber at hp.com)

- Leveraging Troy Heber's addition of code to dig out and uncompress
  in-kernel CONFIG_IKCONFIG data, a new "sys config" command option has
  been added, which dumps all of the kernel configuration data.
  (anderson at redhat.com, troy.heber at hp.com)

- Also leveraging the new CONFIG_IKCONFIG data access, the value of HZ
  can now be absolutely determined by reading CONFIG_HZ.  If the config
  data is not available, then the current use of the HZ #define will
  be replaced by the use of sysconf(_SC_CLK_TCK) to account for the
  upcoming removal of HZ from glibc header files.
  (anderson at redhat.com, olh at suse.de)

- Added a new "--cpus " command line option to work around any
  situations where the number of cpus cannot be correctly determined.
  This is unlikely to ever be needed, but it was necessary for an ia64
  kdexec/kdump development kernel issue that has been addressed.
  However it's been left in place as a work around in case the same
  thing occurs due to some other circumstance.  (anderson at redhat.com)


Download from:  http://people.redhat.com/anderson

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