From nobody Thu Jan 13 04:03:28 2022 X-Original-To: virtualization@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id C4EB11966249 for ; Thu, 13 Jan 2022 04:03:30 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from mxrelay.nyi.freebsd.org (mxrelay.nyi.freebsd.org [IPv6:2610:1c1:1:606c::19:3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "mxrelay.nyi.freebsd.org", Issuer "R3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4JZ9lQ484Fz3tm1 for ; Thu, 13 Jan 2022 04:03:30 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from kenobi.freebsd.org (kenobi.freebsd.org [IPv6:2610:1c1:1:606c::50:1d]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (Client did not present a certificate) by mxrelay.nyi.freebsd.org (Postfix) with ESMTPS id 6DD2219AC6 for ; Thu, 13 Jan 2022 04:03:30 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from kenobi.freebsd.org ([127.0.1.5]) by kenobi.freebsd.org (8.15.2/8.15.2) with ESMTP id 20D43UDl098629 for ; Thu, 13 Jan 2022 04:03:30 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id 20D43UNi098628 for virtualization@FreeBSD.org; Thu, 13 Jan 2022 04:03:30 GMT (envelope-from bugzilla-noreply@freebsd.org) X-Authentication-Warning: kenobi.freebsd.org: www set sender to bugzilla-noreply@freebsd.org using -f From: bugzilla-noreply@freebsd.org To: virtualization@FreeBSD.org Subject: [Bug 254513] virtio_random: random_harvestq spinning on a CPU with Q35 virtio random device Date: Thu, 13 Jan 2022 04:03:28 +0000 X-Bugzilla-Reason: AssignedTo CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: Base System X-Bugzilla-Component: misc X-Bugzilla-Version: 13.0-STABLE X-Bugzilla-Keywords: performance, regression X-Bugzilla-Severity: Affects Many People X-Bugzilla-Who: kevans@freebsd.org X-Bugzilla-Status: New X-Bugzilla-Resolution: X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: virtualization@FreeBSD.org X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: Message-ID: In-Reply-To: References: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: https://bugs.freebsd.org/bugzilla/ Auto-Submitted: auto-generated List-Id: Discussion List-Archive: https://lists.freebsd.org/archives/freebsd-virtualization List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-virtualization@freebsd.org X-BeenThere: freebsd-virtualization@freebsd.org MIME-Version: 1.0 ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1642046610; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=8w+j3PWyz+ZANCsnGdLhIaKj3UC0g2FUcjmdkCSspdY=; b=RSndp+71iXPVxTFqx1dguexqlHEk7UJkXf71GIacqXQZZr6e2nDy/xk+zftNEbAm9r3Y0k UId4nMoVRkk8ocAuCxofR9loqHDiRPQkTu1q7b3LCvxhHddk9KvKX5G+oBT8F+BHLq5hbF aEE4ajkb51IsBxnrfFjXXpQNWMqkEwjYWFxx/tmT5ZOv6oIC8Cq74g0zh2cHRi/dVQzzP6 8AgkTLOL/p6a9+6TMF1o14aJGe9N1wcZ7SBe1LNw5OmFyx6OU0Zo46u0bYqbUNBON5gwXj ElLRD4gWkFcJ/kQJKgvWoWl4IvQ68P3BGhMplCTcQx28YtYwPjFyNxyKUMxilQ== ARC-Seal: i=1; s=dkim; d=freebsd.org; t=1642046610; a=rsa-sha256; cv=none; b=IqscV1SOEUZSsWamqzAkswqD6jOrDNTrKjZPrBo24uEth/CwRvx79g4pYyByVJ5fu/Oqrp 3ZkJXM+m4sm9XYdKPCbaMFhsDbisWz/Wv3BNSfRCjKmRaiPG1a1wy84h5gLI+DWSs4kj/C mSj0pAfEldFNoioJUA0eBBW6hO/glt37mrElMzEeEVYFN6RYw4klgfCZqPjZz67eNXu3s7 hgz75chk3S1TTPe0fArhwcvZPxVBl92mJfMnx4Z+yY9jQdUxmFD2Vqxa8wtgisTODfewLn Az6dg9UoFMKCvcS+jPWwnPHhNiGunTwBTFJMbBITsDS1I2oGRlcWbQDH7CWa6A== ARC-Authentication-Results: i=1; mx1.freebsd.org; none X-ThisMailContainsUnwantedMimeParts: N https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D254513 --- Comment #37 from Kyle Evans --- What's going on with Hetzner, at least, apparently has nothing to do with t= he polling rate. we make it through exactly 0 iterations of vtrnd_harvest, completely blocked in virtqueue_poll for the first time. On this machine, vtrnd0 is hanging off of virtio_pci4: virtio_pci4: mem 0xfc800000-0xfc803fff irq 22 at device 0.0 on pci5 vtrnd0: on virtio_pci4 --=20 You are receiving this mail because: You are the assignee for the bug. You are on the CC list for the bug.=