* "Peter Teoh" <[EMAIL PROTECTED]> [2008-05-03 00:21]:
>
> Just curious....
>
> a. What are the essential capabilities/features of kdump? As far
> as I know kdump is only a stacktrace, but systap tool can deliver
> stack trace at many user-defined functions....and it has other
> features to extract out the dynamic values of the variables....much
> more powerful....
>
> b. Is the various memory snapshot tools provided by /proc fs and
> /dev/*mem* not enough? (/proc/vmstat, /proc/kcore (piped to xxd)),
> /proc/iomem, /dev/mem (piped to xxd) etc)
Well, kdump takes a dump when the system oopsed. It does more or less
the same like LKCD, but it boots a crashkernel through kexec instead of
dumping from the old, broken kernel. That's more reliable.
But it's not for live debugging (system tap or /proc/kcore only works
when your system is still *running* and not oopsed).
HTH,
Bernhard
--
To unsubscribe from this list: send an email with
"unsubscribe kernelnewbies" to [EMAIL PROTECTED]
Please read the FAQ at http://kernelnewbies.org/FAQ
