From owner-freebsd-bugs@freebsd.org Tue Mar 16 10:15:09 2021 Return-Path: Delivered-To: freebsd-bugs@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id EF1C157F958 for ; Tue, 16 Mar 2021 10:15:09 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from mailman.nyi.freebsd.org (unknown [127.0.1.3]) by mx1.freebsd.org (Postfix) with ESMTP id 4F08L550bcz3qvd for ; Tue, 16 Mar 2021 10:15:09 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: by mailman.nyi.freebsd.org (Postfix) id A9E7057FAD7; Tue, 16 Mar 2021 10:15:09 +0000 (UTC) Delivered-To: bugs@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id A88A357F4E3 for ; Tue, 16 Mar 2021 10:15:09 +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 4F08L54FmVz3r5B for ; Tue, 16 Mar 2021 10:15:09 +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 8516621D49 for ; Tue, 16 Mar 2021 10:15:09 +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 12GAF9Ss078907 for ; Tue, 16 Mar 2021 10:15:09 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id 12GAF9sp078906 for bugs@FreeBSD.org; Tue, 16 Mar 2021 10:15:09 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: bugs@FreeBSD.org Subject: [Bug 254333] sysctl net.inet.tcp.hostcache.list hangs Date: Tue, 16 Mar 2021 10:15:09 +0000 X-Bugzilla-Reason: AssignedTo X-Bugzilla-Type: new X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: Base System X-Bugzilla-Component: kern X-Bugzilla-Version: 11.4-STABLE X-Bugzilla-Keywords: X-Bugzilla-Severity: Affects Only Me X-Bugzilla-Who: maxim.shalomikhin@kaspersky.com X-Bugzilla-Status: New X-Bugzilla-Resolution: X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: bugs@FreeBSD.org X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: bug_id short_desc product version rep_platform op_sys bug_status bug_severity priority component assigned_to reporter Message-ID: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: https://bugs.freebsd.org/bugzilla/ Auto-Submitted: auto-generated MIME-Version: 1.0 X-BeenThere: freebsd-bugs@freebsd.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Bug reports List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 16 Mar 2021 10:15:10 -0000 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D254333 Bug ID: 254333 Summary: sysctl net.inet.tcp.hostcache.list hangs Product: Base System Version: 11.4-STABLE Hardware: amd64 OS: Any Status: New Severity: Affects Only Me Priority: --- Component: kern Assignee: bugs@FreeBSD.org Reporter: maxim.shalomikhin@kaspersky.com I'm running 'sysctl net.inet.tcp.hostcache.list' from operator's crontab ev= ery 5 minutes for gathering tcp statistics.=20 After 3 or 4 months of work sysctl hangs. Kill (and kill -9) doesn't help. Running one more "sysctl net.inet.tcp.hostcache.list" command gives the same result - it hangs forever with no output. Other "sysctl SOMETHING" commands works fine.=20 # ps ax| grep sysctl operator 787 0.0 0.0 4236 1004 - D Tue16 2:42.96 /sbin/sysctl net.inet.tcp.hostcache.list operator 1908 0.0 0.0 4236 1004 - D Mon02 2:45.74 /sbin/sysctl net.inet.tcp.hostcache.list operator 2358 0.0 0.0 4236 1004 - D Wed10 1:33.93 /sbin/sysctl net.inet.tcp.hostcache.list operator 3270 0.0 0.0 4236 1004 - D Sun16 2:47.22 /sbin/sysctl net.inet.tcp.hostcache.list After rebot 'sysctl net.inet.tcp.hostcache.list' works again as expected for another 3 or 4 months. The issue is reproducing on about 60 hevy loaded http(s) servers with diffe= rent hw specs. --=20 You are receiving this mail because: You are the assignee for the bug.=