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[PATCH] doc: refer to kdump in oops-tracing.txt
Kdump has been merged and supported on several architectures. It is better to encourage to use kdump rather than non standard kernel crash dump patches. Signed-off-by: Akinobu Mita <mita@miraclelinux.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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@ -41,11 +41,9 @@ the disk is not available then you have three options :-
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run a null modem to a second machine and capture the output there
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using your favourite communication program. Minicom works well.
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(3) Patch the kernel with one of the crash dump patches. These save
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data to a floppy disk or video rom or a swap partition. None of
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these are standard kernel patches so you have to find and apply
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them yourself. Search kernel archives for kmsgdump, lkcd and
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oops+smram.
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(3) Use Kdump (see Documentation/kdump/kdump.txt),
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extract the kernel ring buffer from old memory with using dmesg
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gdbmacro in Documentation/kdump/gdbmacros.txt.
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Full Information
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