From: Giuseppe Sacco <eppesuig@debian.org>
To: Sudip Mukherjee <sudipm.mukherjee@gmail.com>,
Salvatore Bonaccorso <carnil@debian.org>
Cc: "Paul Menzel" <pmenzel@molgen.mpg.de>,
"Sudip Mukherjee" <sudip.mukherjee@codethink.co.uk>,
linux-kernel@vger.kernel.org,
"Andrew Morton" <akpm@linux-foundation.org>,
linux-mm@kvack.org, regressions@lists.linux.dev,
"Thomas Gleixner" <tglx@linutronix.de>,
"Ingo Molnar" <mingo@redhat.com>,
"Borislav Petkov" <bp@alien8.de>,
"Dave Hansen" <dave.hansen@linux.intel.com>,
x86@kernel.org, "Hans de Goede" <hansg@kernel.org>,
"Ilpo Järvinen" <ilpo.jarvinen@linux.intel.com>
Subject: Re: BUG: kernel NULL pointer dereference, address: 0000000000000000
Date: Tue, 27 Jan 2026 08:01:43 +0100 [thread overview]
Message-ID: <8f8a478ba50bd43d30704f0d74e02058810f2795.camel@debian.org> (raw)
In-Reply-To: <CADVatmNzTyUAr8UBvm6pHFsKz8xZpqUXh5NQR641JXsCWaPg8g@mail.gmail.com>
Hello Sudip,
Il giorno lun, 26/01/2026 alle 18.56 +0000, Sudip Mukherjee ha scritto:
[...]
> I was going to post the patch today but since you have asked the
> reporter of the last bug to test it so lets wait for few more days.
>
> About the problem showing on the first boot, does that mean that its
> only seen on a cold boot ? and not seen on reboots (reboots without
> power cycle) ?
> Can it be reproduced if the system is powered-off and then powering
> it on ?
I am that reporter. The problem appeared only once, on a laptop that is
never just rebooted, i.e., it is always completely powered off and
started again after a few hours. I've built the kernel with your patch
but I would not use it until I would find a way to reproduce the error.
Sadly I was unable to see the problem again.
The only hint I may provide is that the day the problem showed up, I
was working in the wild, at about 10°C. Maybe this has influenced the
hardware response timeing.
Bye,
Giuseppe
prev parent reply other threads:[~2026-01-27 7:02 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-11-27 18:51 Paul Menzel
2025-11-27 22:55 ` Paul Menzel
2025-12-01 13:25 ` Sudip Mukherjee
2025-12-01 16:05 ` Paul Menzel
2026-01-02 19:59 ` Salvatore Bonaccorso
2026-01-03 6:01 ` Paul Menzel
2026-01-03 11:33 ` Sudip Mukherjee
2026-01-22 8:22 ` Salvatore Bonaccorso
2026-01-26 18:56 ` Sudip Mukherjee
2026-01-27 7:01 ` Giuseppe Sacco [this message]
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=8f8a478ba50bd43d30704f0d74e02058810f2795.camel@debian.org \
--to=eppesuig@debian.org \
--cc=akpm@linux-foundation.org \
--cc=bp@alien8.de \
--cc=carnil@debian.org \
--cc=dave.hansen@linux.intel.com \
--cc=hansg@kernel.org \
--cc=ilpo.jarvinen@linux.intel.com \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mm@kvack.org \
--cc=mingo@redhat.com \
--cc=pmenzel@molgen.mpg.de \
--cc=regressions@lists.linux.dev \
--cc=sudip.mukherjee@codethink.co.uk \
--cc=sudipm.mukherjee@gmail.com \
--cc=tglx@linutronix.de \
--cc=x86@kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox