- 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@xxxxxxxxxx)
- 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@xxxxxx)
- 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@xxxxxxxxxx, troy.heber@xxxxxx)
- 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@xxxxxxxxxx, olh@xxxxxxx)
- 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@xxxxxxxxxx)
Download from: http://people.redhat.com/anderson
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