[LTP] Running kdump on Debian

[LTP] Running kdump on Debian

[Vladut Magas]

Hello,

I am trying to run the kdump  testsuite on a Debian 9 distribution, but every test  fails with "vmcore NOT FOUND".
From what I understand, it is because /proc/vmcore is missing from my machine configuration.

I have the "crashkernel=256M@128M" parameter inside /etc/default/grub, and also nmi_watchdog=1.
I also have inside the kernel configuration:
CONFIG_PROC_VMCORE=y
CONFIG_DEBUG_INFO=y
CONFIG_KEXEC=y
CONFIG_CRASH_DUMP=y
and everything described in the documents as needed.

Also, for example, when trying to simulate with the SysRq it doesn't even finish as at some point it hangs and you have to close and restart manually the machine.
A snapshot is attached.

Can anyone please offer some support for this?
Nothing I found on google worked until now!

Best regards,

        Emanuel-Vladut Magas

L4B Software, Iasi, Romania
E-mail: vladut.m@l4b-software.com

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[LTP] Running kdump on Debian

[Jan Stancek]

----- Original Message -----
> Hello,
> 
> I am trying to run the kdump testsuite on a Debian 9 distribution, but every
> test fails with "vmcore NOT FOUND".
> From what I understand, it is because /proc/vmcore is missing from my machine
> configuration.
> 
> I have the "crashkernel=256M@128M" parameter inside /etc/default/grub, and
> also nmi_watchdog=1.
> I also have inside the kernel configuration:
> CONFIG_PROC_VMCORE=y
> CONFIG_DEBUG_INFO=y
> CONFIG_KEXEC=y
> CONFIG_CRASH_DUMP=y
> and everything described in the documents as needed.
> 
> Also, for example, when trying to simulate with the SysRq it doesn't even
> finish as at some point it hangs and you have to close and restart manually
> the machine.
> A snapshot is attached.

Looks like kernel bug. If manual kdump doesn't work, then this is
outside of scope for LTP.

Panic is in virtualbox module, I'd try blacklisting it in kdump kernel,
and also consider trying different kernel version(s).

> 
> Can anyone please offer some support for this?
> Nothing I found on google worked until now!
> 
> Best regards,
> 
> Emanuel-Vladut Magas
> 
> L4B Software, Iasi, Romania
> E-mail: vladut.m@l4b-software.com
> 
> 
> 
> 
> --
> Mailing list info: https://lists.linux.it/listinfo/ltp
>