<div dir="ltr"><br><div class="gmail_extra"><br><br><div class="gmail_quote">On Fri, Dec 13, 2013 at 6:30 AM, <span dir="ltr"><<a href="mailto:Valdis.Kletnieks@vt.edu" target="_blank">Valdis.Kletnieks@vt.edu</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div class="HOEnZb"><div class="h5">On Thu, 12 Dec 2013 16:45:32 -0800, Vipul Jain said:<br>
<br>
> I would like to enable softlockup and hardlockup option in Linux kernel<br>
> and would like to test it to make sure that when soft and hard lockup<br>
> condition arises we do see kernel taking configured action. Hence was<br>
> wondering if there is any tool to do the same (basically injecting the<br>
> errors).<br>
<br>
</div></div>Build your kernel with CONFIG_BOOTPARAM_HARDLOCKUP_PANIC and/or<br>
CONFIG_BOOTPARAM_SOFTLOCKUP_PANIC and then stick an infinite loop<br>
somewhere in the kernel. See lib/Kconfig.debug under 'Debug Lockups and Hangs'.<br>
</blockquote></div><br></div><div class="gmail_extra">Hi Valids,</div><div class="gmail_extra"><br></div><div class="gmail_extra">I am able to configure the kernel with soft and hard lockup flags but now I would like to generate and hard and soft lockup event and verify it and was wondering if we have any tool in place that I can use, if not, any guidance of how to go about testing it will be great.</div>
<div class="gmail_extra"><br></div><div class="gmail_extra">Regards,</div><div class="gmail_extra">Vipul.</div></div>