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Fri, 27 Feb 2026 16:20:24 -0500 (EST) Message-ID: Subject: Re: Linux 6.19.4 - Oops, regression From: Genes Lists To: "Kris Karas (Bug Reporting)" , Greg KH Cc: akpm@linux-foundation.org, jslaby@suse.cz, linux-kernel@vger.kernel.org, lwn@lwn.net, stable@vger.kernel.org, torvalds@linux-foundation.org Date: Fri, 27 Feb 2026 16:20:24 -0500 In-Reply-To: <8909a57e-22ca-427d-8d41-cbd68895d33e@moonlit-rail.com> References: <2026022657-clambake-mountable-8175@gregkh> <2026022612-buckskin-surfacing-d854@gregkh> <67d9f732a55a31f3073675164e8d7ada46da3dbe.camel@sapience.com> <8909a57e-22ca-427d-8d41-cbd68895d33e@moonlit-rail.com> Autocrypt: addr=lists@sapience.com; prefer-encrypt=mutual; keydata=mDMEXSY9GRYJKwYBBAHaRw8BAQdAwzFfmp+m0ldl2vgmbtPC/XN7/k5vscpADq3BmRy5R 7y0LU1haWwgTGlzdHMgKEwwIDIwMTkwNzEwKSA8bGlzdHNAc2FwaWVuY2UuY29tPoiWBBMWCAA+Ah sBBQsJCAcCBhUKCQgLAgQWAgMBAh4BAheAFiEE5YMoUxcbEgQOvOMKc+dlCv6PxQAFAmPJfooFCRl vRHEACgkQc+dlCv6PxQAc/wEA/Dbmg91DOGXll0OW1GKaZQGQDl7fHibMOKRGC6X/emoA+wQR5FIz BnV/PrXbao8LS/h0tSkeXgPsYxrzvfZInIAC Content-Type: multipart/signed; micalg="pgp-sha384"; protocol="application/pgp-signature"; boundary="=-zU5SOuZhSUt8A4X6puI9" User-Agent: Evolution 3.58.3 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 --=-zU5SOuZhSUt8A4X6puI9 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable On Fri, 2026-02-27 at 16:01 -0500, Kris Karas (Bug Reporting) wrote: > Genes Lists wrote: >=20 >=20 > I second Greg's comment - "Odd" - in wondering why you need to patch=20 > userspace and/or recompile it if the same userspace was working fine > on=20 > 6.19.3? >=20 > FWIW, nftables 1.1.6 (libnftnl 1.3.1, libmnl 1.0.5) is still working=20 > fine for me under 6.19.4 using the .abort_skip_removal patches from=20 > Pablo as forwarded by Greg. >=20 > Kris Thanks Kris, I'll try help clarify. Things weren't crystal clear at first. There were actually 2 separate issues that happened to hit at the same time. =C2=A0(1) the 6.19.4 netfilter crash=20 Now fixed or will be shortly in 6.19.5. and=20 =C2=A0(2) a userspace issue with nft v1.1.6 and large sets leading to=C2=A0 spurious 'file exists'=C2=A0errors.=C2=A0 This has nothing at all to do with any kernel oops. This 2nd issue has been fixed in nftables by commit:=C2=A0 =C2=A0=C2=A0--- =C2=A0=C2=A0=C2=A0 commit e83e32c8d1cd228d751fb92b756306c6eb6c0759 =C2=A0=C2=A0=C2=A0 Author: Pablo Neira Ayuso =C2=A0=C2=A0=C2=A0 Date:=C2=A0=C2=A0 Mon Jan 12 12:59:26 2026 +0100 =C2=A0=C2=A0=C2=A0 mnl: restore create element command with large batches =C2=A0=C2=A0=C2=A0=C2=A0 =C2=A0=C2=A0=C2=A0 The rework to reduce memory consumption has introduced a =C2=A0=C2=A0=C2=A0 bug that result in spurious EEXIST with large batches. =C2=A0=C2=A0=C2=A0 --- This commit came after nftables v1.1.6 release. Rebuilding nftables with this commit sorts out the 2nd (userspace) issue. gene --=-zU5SOuZhSUt8A4X6puI9 Content-Type: application/pgp-signature; name="signature.asc" Content-Description: This is a digitally signed message part -----BEGIN PGP SIGNATURE----- iHUEABYJAB0WIQRByXNdQO2KDRJ2iXo5BdB0L6Ze2wUCaaIKmAAKCRA5BdB0L6Ze 2/mcAP9n8Z6T52eJDe+eZxYMb34iaTG/duF0Y8WbqtiLEfB5HAD/aSvBOsX+YZFr O0qk1eTF3AVKKHNIlm6uSPWKhEPUpwI= =jMmZ -----END PGP SIGNATURE----- --=-zU5SOuZhSUt8A4X6puI9--