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Sat, 8 Nov 2025 16:37:16 -0500 (EST) Received: by mbp.qyliss.net (Postfix, from userid 1000) id 2134868DF21E; Sat, 08 Nov 2025 22:37:15 +0100 (CET) From: Alyssa Ross To: Demi Marie Obenour Subject: Re: [PATCH v6 2/2] host/rootfs: Switch to systemd-udevd In-Reply-To: References: <20251107-udev-v6-0-176246281424@gmail.com> <20251107-udev-v6-2-176246281424@gmail.com> <87seeonw3a.fsf@alyssa.is> Date: Sat, 08 Nov 2025 22:37:13 +0100 Message-ID: <87ecq8tddi.fsf@alyssa.is> MIME-Version: 1.0 Content-Type: multipart/signed; boundary="=-=-="; micalg=pgp-sha512; protocol="application/pgp-signature" Message-ID-Hash: KCVO4R5EBEBQBS7S4E7BCJTIGNWTAORR X-Message-ID-Hash: KCVO4R5EBEBQBS7S4E7BCJTIGNWTAORR X-MailFrom: hi@alyssa.is X-Mailman-Rule-Misses: dmarc-mitigation; no-senders; approved; emergency; loop; banned-address; member-moderation; header-match-devel.spectrum-os.org-0; header-match-devel.spectrum-os.org-1; header-match-devel.spectrum-os.org-2; header-match-devel.spectrum-os.org-3; header-match-devel.spectrum-os.org-4; nonmember-moderation; administrivia; implicit-dest; max-recipients; max-size; news-moderation; no-subject; digests; suspicious-header CC: Spectrum OS Development X-Mailman-Version: 3.3.9 Precedence: list List-Id: Patches and low-level development discussion Archived-At: List-Archive: List-Help: List-Owner: List-Post: List-Subscribe: List-Unsubscribe: --=-=-= Content-Type: text/plain Content-Transfer-Encoding: quoted-printable Demi Marie Obenour writes: > On 11/8/25 14:49, Alyssa Ross wrote: >> Demi Marie Obenour writes: >>=20 >>> @@ -113,14 +76,15 @@ let >>>=20=20 >>> kernel =3D linux_latest; >>>=20=20 >>> - appvm =3D callSpectrumPackage ../../img/app { inherit (foot) terminf= o; }; >>> - netvm =3D callSpectrumPackage ../../vm/sys/net { inherit (foot) term= info; }; >>> + appvm =3D callSpectrumPackage ../../img/app { inherit (no_pgo_foot) = terminfo; }; >>> + netvm =3D callSpectrumPackage ../../vm/sys/net { inherit (no_pgo_foo= t) terminfo; }; >>>=20=20 >>> # Packages that should be fully linked into /usr, >>> # (not just their bin/* files). >>> usrPackages =3D [ >>> - appvm kernel.modules firmware netvm >>> - ] ++ (with pkgsGui; [ mesa dejavu_fonts westonLite ]); >>> + appvm kernel.modules firmware kmod kmod.lib >>> + netvm mesa dejavu_fonts westonLite >>> + ]; >>>=20=20 >>> appvms =3D { >>> appvm-firefox =3D callSpectrumPackage ../../vm/app/firefox.nix {}; >>=20 >> So based on what we'd discussed previously, I was ready to just apply >> this and pare down the Nix changes myself since I don't have to worry >> about rebuilds, etc., but in doing so I came across this. Do you know >> why kmod.lib is required? Is something impurely dlopening it? Seems >> very strange, but I did verify that it's required for Weston to start. > > systemd uses dlopen heavily. This allows dependencies to be optional > at runtime. I remember strace showing that systemd-udevd dlopen's > kmod.lib. In short, your diagnosis is correct. Okay, that's a packaging bug in Nixpkgs then. (See e.g. [1].) I'll see what can be done. [1]: https://github.com/NixOS/nixpkgs/commit/2328731ad041735a2260698574ce65= 99591f33ad --=-=-= Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iHUEARYKAB0WIQRV/neXydHjZma5XLJbRZGEIw/wogUCaQ+4CQAKCRBbRZGEIw/w olt4AP4tX7ZQ1R8gwzJlEue7qOWpC/Rla3hVzoREkWO1k8NGEwD/T68OOXLO7ZLr OG3+PIrYDYPWtsiScNFBhP1MsZQW4QQ= =tLEv -----END PGP SIGNATURE----- --=-=-=--