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Tue, 9 Dec 2025 04:58:39 -0500 (EST) Received: by fw12.qyliss.net (Postfix, from userid 1000) id 9DFFE5FA2F8A; Tue, 09 Dec 2025 10:58:23 +0100 (CET) From: Alyssa Ross To: devel@spectrum-os.org, Yureka Lilian Subject: Re: [REGRESSION] Networking for Firefox broken on second VM run In-Reply-To: <877buwkmlz.fsf@alyssa.is> References: <87ecp4kobu.fsf@alyssa.is> <877buwkmlz.fsf@alyssa.is> Date: Tue, 09 Dec 2025 10:58:21 +0100 Message-ID: <874iq0kmde.fsf@alyssa.is> MIME-Version: 1.0 Content-Type: multipart/signed; boundary="=-=-="; micalg=pgp-sha512; protocol="application/pgp-signature" Message-ID-Hash: OFTQ26MZ3YHNV3AOHSFDHMKKYDS5Z7KP X-Message-ID-Hash: OFTQ26MZ3YHNV3AOHSFDHMKKYDS5Z7KP 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 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 Alyssa Ross writes: > Alyssa Ross writes: > >> Since we introduced the userspace router, if I start the Firefox VM, >> quit Firefox, wait for the VM to shut down, and then start it again, >> networking no longer works, and I see repeating log lines like this: >> >> 2025-12-09 09:13:29.147240893 [2025-12-09T09:13:29Z WARN spectrum_router::router] interface App(0) has been blocked for 1 sec, dropping packet > > Ah, and there's also this just as the first Firefox VM exits: > > 2025-12-09 09:51:17.380783524 [2025-12-09T09:51:17Z ERROR virtio_queue::queue] Iterator error trying to process requests on a queue that's not ready > 2025-12-09 09:51:17.380846889 [2025-12-09T09:51:17Z ERROR virtio_queue::queue] Iterator error trying to process requests on a queue that's not ready And repeated stuff like this from the guest kernel: [ 402.381203] virtio_net virtio2 eth1: NETDEV WATCHDOG: CPU: 0: transmit queue 0 timed out 5792 ms [ 402.382150] virtio_net virtio2 eth1: TX timeout on queue: 0, sq: output.0, vq: 0x1, name: output.0, 5792000 usecs ago >> Full reproduction steps: >> >> 1. cd host/rootfs >> 2. nix-shell --run 'make clean && make run' >> 3. Start Firefox VM with vm-start >> 4. See that networking works >> 5. Quit Firefox and wait a few seconds for VM to stop >> 6. Start Firefox VM with vm-start again >> 7. No more networking, and log lines like the above --=-=-= Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iHUEARYKAB0WIQQGoGac7QfI+H5ZtFCZddwkt31pFQUCaTfyvQAKCRCZddwkt31p FW09AP9lLY5/C6lIMbFT0HXwn1tszwJS78xQnRWZ5xMbw0pvBwEAilxvRomxO4d8 v4JxTDvQdjlkv03zAsvdxsa7IK5A7gs= =x9kP -----END PGP SIGNATURE----- --=-=-=--