Re: [PATCH] Provide ways of crashing the kernel through debugfs

From: AmÃrico Wang
Date: Tue Jan 26 2010 - 05:08:40 EST

On Tue, Jan 26, 2010 at 5:56 PM, Simon Kagstrom
<simon.kagstrom@xxxxxxxxxxxxxx> wrote:
> For development and testing it's sometimes useful to crash or injure the
> kernel in various ways. This patch adds a debugfs interface to provoke
> null-pointer dereferences, stack corruption, panics, bugons etc. For
> example:
> Âmount -t debugfs debugfs /mnt
> Âecho 1 > /mnt/provoke-crash/null_dereference
> Signed-off-by: Simon Kagstrom <simon.kagstrom@xxxxxxxxxxxxxx>
> ---
> Obviously this feature is for debugging and testing only, and of
> interest to fairly few people. I've used it for testing the kmsg_dump
> stuff (hence the CC:s above) and kdump, and have found it fairly useful.
> If it's not of interest, at least this mail will be in the archives if
> someone else needs something like it :-)

Hey, we already have /proc/sysrq-trigger, you need to state why
it is better than using /proc/sysrq-trigger.

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