From nobody Wed Aug 30 09:39:45 2023 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 4RbK5H3VDFz4rwQd for ; Wed, 30 Aug 2023 09:39:47 +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 4RbK5H0cBzz3V3D for ; Wed, 30 Aug 2023 09:39:47 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) ARC-Seal: i=1; s=dkim; d=freebsd.org; t=1693388387; a=rsa-sha256; cv=none; b=waNn6JmSNAK6YaqAcYXsXbCi8Eb9G2dOhjJ/Zccgi6W7v3EPxyMOufDiqcEF2TWy7sWgLc 08RfuMXiBhk6kAqQeH1zTbDUwJYOTrPkFQg0aNtBFOc88Fi2itQ/0EFLqaFJwXu0egXD7v KLMIOueCG6h3UiJswEBQCuPDnM0VEnaQ0gNDGr8gaw9R6dnXzngiTQG3rTlidWrU7XcUDz vtwBM59Gckq/HP+wECzRamWPfQenJTrWjA96JwF1Hoq0scPROwPG9f45625sGNDOk5Z6m9 zuIxkJaxtdeiDfHMjE+keK73HQrNbW/doTC8637wKlMfUTLjITggGEI5Q8mi5g== ARC-Authentication-Results: i=1; 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Wed, 30 Aug 2023 09:39:46 +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 37U9dkaA060321 for ; Wed, 30 Aug 2023 09:39:46 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id 37U9dkha060320 for virtualization@FreeBSD.org; Wed, 30 Aug 2023 09:39:46 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 263062] tcp_inpcb leaking in VM environment Date: Wed, 30 Aug 2023 09:39:45 +0000 X-Bugzilla-Reason: AssignedTo X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: Base System X-Bugzilla-Component: kern X-Bugzilla-Version: 13.1-STABLE X-Bugzilla-Keywords: X-Bugzilla-Severity: Affects Only Me X-Bugzilla-Who: paul@redbarn.org X-Bugzilla-Status: Open X-Bugzilla-Resolution: X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: virtualization@FreeBSD.org X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: cc 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 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D263062 paul vixie changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |paul@redbarn.org --- Comment #14 from paul vixie --- > ... > For now the server already has stopped working three times with: > Aug 10 07:25:38 mailrelay kernel: [zone: udp_inpcb] kern.ipc.maxsockets l= imit > reached >=20 > I guess the DNS queries are the reason for this. > ... this is normal for all recursive dns servers not just unbound, because kami= nsky resistance requires randomized source udp port numbers for cache miss transactions, which in turn requires a moderately large working set of bound udp sockets, with heavy churn. if this turns out to be chipset dependent, we should be looking at atomic t= est and set operations. i long ago turned off hyperthreading because microarchtectural details turned out to be motherboard dependent. there may= be similar problems still lurking, but on a lark, maybe try turning off hyperthreading? --=20 You are receiving this mail because: You are the assignee for the bug.=