linux-kernel - Re: [PATCH] print kdump kernel loaded status in stack dump

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Date:   Thu, 18 Jan 2018 10:02:17 -0800
From:   Andi Kleen <ak@...ux.intel.com>
To:     Dave Young <dyoung@...hat.com>
Cc:     pmladek@...e.com, sergey.senozhatsky@...il.com,
        rostedt@...dmis.org, linux-kernel@...r.kernel.org,
        akpm@...ux-foundation.org, kexec@...ts.infradead.org
Subject: Re: [PATCH] print kdump kernel loaded status in stack dump

Dave Young <dyoung@...hat.com> writes:
>  		printk("%sHardware name: %s\n",
>  		       log_lvl, dump_stack_arch_desc_str);
> +	if (kexec_crash_loaded())
> +		printk("%skdump kernel loaded\n", log_lvl);

Oops/warnings are getting longer and longer, often scrolling away
from the screen, and if the kernel crashes backscroll does not work
anymore, so precious information is lost.

Can you merge it with some other line?

Just a [KDUMP] or so somewhere should be good enough.

-Andi