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Tue, 9 Dec 2025 04:53:26 -0500 (EST) Received: by fw12.qyliss.net (Postfix, from userid 1000) id 88C895FA2DB5; Tue, 09 Dec 2025 10:53:14 +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: <87ecp4kobu.fsf@alyssa.is> References: <87ecp4kobu.fsf@alyssa.is> Date: Tue, 09 Dec 2025 10:53:12 +0100 Message-ID: <877buwkmlz.fsf@alyssa.is> MIME-Version: 1.0 Content-Type: multipart/signed; boundary="=-=-="; micalg=pgp-sha512; protocol="application/pgp-signature" Message-ID-Hash: VBIG4IIFHRMZUDPRG7QAKO533ZSXDH4I X-Message-ID-Hash: VBIG4IIFHRMZUDPRG7QAKO533ZSXDH4I 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: > 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 > 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+H5ZtFCZddwkt31pFQUCaTfxiAAKCRCZddwkt31p FbYbAQD36ncMKuFCc1aYmDQiZcz91/telwkqrsmq6dvwTy/MUwEAki8oeESNwDKB j+1k+FxD1TOrMz0A4NSJf/aqf3dJ7wE= =iIS2 -----END PGP SIGNATURE----- --=-=-=--