linux-kernel - Re: [PATCH v9 1/9] kho: make debugfs interface optional

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Message-ID: <90d5e140-b2a5-4e7e-addb-c4f75912526e@linux.dev>
Date: Thu, 13 Nov 2025 12:28:48 -0800
From: "Yanjun.Zhu" <yanjun.zhu@...ux.dev>
To: Pasha Tatashin <pasha.tatashin@...een.com>
Cc: Pratyush Yadav <pratyush@...nel.org>, akpm@...ux-foundation.org,
 brauner@...nel.org, corbet@....net, graf@...zon.com, jgg@...pe.ca,
 linux-kernel@...r.kernel.org, linux-kselftest@...r.kernel.org,
 linux-mm@...ck.org, masahiroy@...nel.org, ojeda@...nel.org,
 rdunlap@...radead.org, rppt@...nel.org, tj@...nel.org
Subject: Re: [PATCH v9 1/9] kho: make debugfs interface optional


On 11/13/25 12:13 PM, Pasha Tatashin wrote:
> On Thu, Nov 13, 2025 at 3:10 PM Pasha Tatashin
> <pasha.tatashin@...een.com> wrote:
>>>    set -e
>>>
>>> -kexec -l -s --reuse-cmdline /boot/bzImage
>>> +kexec -l -s --reuse-cmdline /boot/bzImage --initrd
>>> /boot/initramfs-`uname -r`.img
>> Thank you for your suggestion, in the next version, I am going to add
>> initramfs optionally, I am thinking to update script to something like
> Optionally, because in some environments (like in mine), it is built
> into bzImage.

In my test hosts, the bzImage is vmlinuz-xxx. But with the help of "ln 
-sf ... ...",

this change can work well in my test environments, including x86_64 and 
arm64 hosts.

Br,

Yanjun.Zhu

>
>> this:
>>
>> #!/bin/sh
>> # SPDX-License-Identifier: GPL-2.0
>> set -e
>>
>> # Use $KERNEL and $INITRAMFS to pass custom Kernel and optional initramfs
>>
>> KERNEL="${KERNEL:-/boot/bzImage}"
>> set -- -l -s --reuse-cmdline "$KERNEL"
>>
>> INITRAMFS="${INITRAMFS:-/boot/initramfs}"
>> if [ -f "$INITRAMFS" ]; then
>>      set -- "$@" --initrd="$INITRAMFS"
>> fi
>>
>> kexec "$@"
>> kexec -e