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Thu, 27 Mar 2025 18:02:57 -0400 (EDT) Date: Thu, 27 Mar 2025 23:02:55 +0100 From: Marek =?utf-8?Q?Marczykowski-G=C3=B3recki?= To: "Rafael J. Wysocki" Cc: Jan Beulich , linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org, linux-acpi@vger.kernel.org, xen-devel , Juergen Gross , regressions@lists.linux.dev, Viresh Kumar Subject: Re: NULL pointer dereference in cpufreq_update_limits(?) under Xen PV dom0 - regression in 6.13 Message-ID: References: <3796f2d9-738f-4cdf-a4a2-61c4aa99c310@suse.com> Precedence: bulk X-Mailing-List: linux-acpi@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="n/zi9pJWB1Be1f5W" Content-Disposition: inline In-Reply-To: --n/zi9pJWB1Be1f5W Content-Type: text/plain; protected-headers=v1; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Date: Thu, 27 Mar 2025 23:02:55 +0100 From: Marek =?utf-8?Q?Marczykowski-G=C3=B3recki?= To: "Rafael J. Wysocki" Cc: Jan Beulich , linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org, linux-acpi@vger.kernel.org, xen-devel , Juergen Gross , regressions@lists.linux.dev, Viresh Kumar Subject: Re: NULL pointer dereference in cpufreq_update_limits(?) under Xen PV dom0 - regression in 6.13 On Thu, Mar 27, 2025 at 12:02:24PM +0100, Rafael J. Wysocki wrote: > cpufreq_update_limits() needs to ensure that the driver is there. >=20 > The attached patch should address this issue, Marek please verify. Yes, it fixes the problem, thanks! --=20 Best Regards, Marek Marczykowski-G=C3=B3recki Invisible Things Lab --n/zi9pJWB1Be1f5W Content-Type: application/pgp-signature; name=signature.asc -----BEGIN PGP SIGNATURE----- iQEzBAEBCAAdFiEEhrpukzGPukRmQqkK24/THMrX1ywFAmflyw8ACgkQ24/THMrX 1yyKGAf/RTH6B+NEeQIKDnBlfNysIHdT/cbPalXVBjdTpKXKuIyi+gjpm4pFpLU0 EVf8sCTXe2zXKAWmTJ+g1kwocHEAu94lm78QAn2Y1ZP98e7czfVy0zqpMfOVOfW4 acaKrf6R30uzDAW6RNmFk4BwGS2wHhQ2qt+pn9Yz5OQd1mNaZFguHhqnPn6ceRnO zG2W8HJRoQjsqG5r/JQ/ouKhXVMU9HMq14OQLANb6Q+GOuWuZ3HmRL+ZtG7O9+H5 AYbqeIoIH1XuNLkb69GdoJcyfV+LMKoagGYumGsfhR460h/O9LA8lpKher86U7ig XH40zoYMGASoWX7KueC+Bb7uKv4XkQ== =Zu1I -----END PGP SIGNATURE----- --n/zi9pJWB1Be1f5W--