From: "Roger Pau Monné" <roger.pau@citrix.com>
To: Naresh Kamboju <naresh.kamboju@linaro.org>
Cc: Dan Carpenter <dan.carpenter@linaro.org>,
PCI <linux-pci@vger.kernel.org>,
open list <linux-kernel@vger.kernel.org>,
lkft-triage@lists.linaro.org,
Linux Regressions <regressions@lists.linux.dev>,
Bjorn Helgaas <bhelgaas@google.com>,
Thomas Gleixner <tglx@linutronix.de>,
Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
shivamurthy.shastri@linutronix.de,
Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>,
Anders Roxell <anders.roxell@linaro.org>,
Arnd Bergmann <arnd@arndb.de>,
Linus Torvalds <torvalds@linux-foundation.org>,
Sasha Levin <sashal@kernel.org>
Subject: Re: next-20250324: x86_64: BUG: kernel NULL pointer dereference __pci_enable_msi_range
Date: Thu, 27 Mar 2025 12:00:20 +0100 [thread overview]
Message-ID: <Z-UvxG4EIeO5zOgU@macbook.local> (raw)
In-Reply-To: <CA+G9fYumyaftJ9FaK+74g5iw-v9RV4qDT-SLg1XGk8G7ub2EXA@mail.gmail.com>
On Thu, Mar 27, 2025 at 02:10:21PM +0530, Naresh Kamboju wrote:
> On Tue, 25 Mar 2025 at 20:23, Roger Pau Monné <roger.pau@citrix.com> wrote:
> >
> > On Tue, Mar 25, 2025 at 04:56:33PM +0300, Dan Carpenter wrote:
> > > If I had to guess, I'd say that it was related to Fixes: d9f2164238d8
> > > ("PCI/MSI: Convert pci_msi_ignore_mask to per MSI domain flag"). I
> > > suspect d->host_data can be NULL. I could be wrong, but let's add Roger
> > > to the CC list just in case.
> >
> > Indeed, sorry. There's a patch from Thomas to switch to using
> > pci_msi_domain_supports() for fetching the flag, as there's no
> > guarantee all call contexts will have an associated msi_domain_info:
>
> Thanks Roger for the clarification.
> LKFT started noticing this issue on the Linus Torvalds master branch from
> March 26, 2025 at git describe: v6.14-1979-g61af143fbea4
>
> Anders bisected and confirmed that,
> # first bad commit:
> [c3164d2e0d181027da8fc94f8179d8607c3d440f]
> PCI/MSI: Convert pci_msi_ignore_mask to per MSI domain flag
>
Hello,
The fix has already been committed to Linux master, commit hash
3ece3e8e5976c49c3f887e5923f998eabd54ff40.
Regards, Roger.
prev parent reply other threads:[~2025-03-27 11:00 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-03-25 11:41 next-20250324: x86_64: BUG: kernel NULL pointer dereference __pci_enable_msi_range Naresh Kamboju
2025-03-25 13:56 ` Dan Carpenter
2025-03-25 14:53 ` Roger Pau Monné
2025-03-27 8:40 ` Naresh Kamboju
2025-03-27 11:00 ` Roger Pau Monné [this message]
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