[Kernel-meetup] Blog posts and slides for past meetups
Pankaj Gupta
pagupta at redhat.com
Fri Apr 21 04:17:59 PDT 2017
> Hi Nitin,
> Excellent write up, thank you for taking time out and writing it in such
> detail.
> Liked how you showed the function call flow and checking arguments via
> disassembly.
> What other scenarios/commands would manually generate a vmcore that run into
> different code paths for study purpose ?
> I am only aware of sysrq-trigger. Thanks.
This is force trigger of coredump. Other cases are:
* If machine crashes and we have kdump configured we will get vmcore captured. You can search
how to capture vmcore.
* Other option is if you have KVM VM running with libvirt, below command will also give you vmcore
# virsh dump VM_NAME > vmcore.dump
Then you can run crash tool based on version of kernel and debug kernel.
Hope it helps.
Thanks,
Pankaj
> Regards
> Gaurav
> On Wed, Apr 19, 2017 at 7:53 PM, Nitin Bansal < nb at randomsearch.org > wrote:
> > Hi Siddhesh,
>
> > On Wed, Apr 19, 2017 at 11:29 AM, Siddhesh Poyarekar
>
> > < sid at reserved-bit.com > wrote:
>
> > > Hi,
>
> > >
>
> > > If you have written blog posts or uploaded slides of your sessions at
>
> > > the kernel meetup in the past months, please don't forget to add a link
>
> > > to it on the relevant wiki page.
>
> > >
>
> > > https://ideas.reserved-bit.com/w/Kernel_Meetup_February_-_2017
>
> > > https://ideas.reserved-bit.com/w/Kernel_Meetup_April_-_2017
>
> > >
>
> > I am attaching a file which contains write-up about vmcore analysis
>
> > session that I presented in last meetup,
>
> > I don't maintain any blog etc so don't really have any place to
>
> > publish it, but feel free to post/attach it to
>
> > reserved-bit wiki if you like.
>
> > _______________________________________________
>
> > Kernel-meetup mailing list
>
> > Kernel-meetup at lists.reserved-bit.com
>
> > http://lists.reserved-bit.com/listinfo.cgi/kernel-meetup-reserved-bit.com
>
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