From owner-freebsd-questions@freebsd.org Fri Oct 5 08:51:18 2018 Return-Path: Delivered-To: freebsd-questions@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 08EEE10C6C31 for ; Fri, 5 Oct 2018 08:51:18 +0000 (UTC) (envelope-from chris@cretaforce.gr) Received: from smtp2.cretaforce.gr (smtp2.cretaforce.gr [195.201.125.11]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client CN "*.cretaforce.gr", Issuer "RapidSSL RSA CA 2018" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 9670377B09 for ; Fri, 5 Oct 2018 08:51:17 +0000 (UTC) (envelope-from chris@cretaforce.gr) Received: from server1.cretaforce.gr (server1.cretaforce.gr [138.201.248.69]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client CN "*.cretaforce.gr", Issuer "RapidSSL RSA CA 2018" (verified OK)) by smtp2.cretaforce.gr (Postfix) with ESMTPS id A5F673E8B5 for ; Fri, 5 Oct 2018 11:51:04 +0300 (EEST) Received: from [192.168.2.3] (athedsl-172518.home.otenet.gr [85.75.217.132]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) (Authenticated sender: chris@cretaforce.gr) by server1.cretaforce.gr (Postfix) with ESMTPSA id 3B5C927363 for ; Fri, 5 Oct 2018 11:51:04 +0300 (EEST) From: Christos Chatzaras Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Mime-Version: 1.0 (Mac OS X Mail 11.5 \(3445.9.1\)) Subject: FreeBSD 11.2 - all processes hang in D state Message-Id: Date: Fri, 5 Oct 2018 11:51:03 +0300 To: FreeBSD Questions X-Mailer: Apple Mail (2.3445.9.1) X-CretaForce-MailScanner-Information: Please contact the ISP for more information X-CretaForce-MailScanner-ID: A5F673E8B5.A2777 X-CretaForce-MailScanner: Found to be clean X-CretaForce-MailScanner-From: chris@cretaforce.gr X-Spam-Status: No X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.27 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 05 Oct 2018 08:51:18 -0000 I have an issue with 11.2-RELEASE-p3 which happened to 3 servers with = similar hardware. These servers run without issues in the past. When the issue happens the server is pingable but can't SSH. Datacenter connect KVM but didn't show anything useful. The problem is that all processes that are related somehow to /home = stuck in D state. I was able to shutdown mysql which has the data in /var partition. The servers use UFS SU+J but I don't think it's related as they run = stable for a long time. Here is the output of ps -aux: USER PID %CPU %MEM VSZ RSS TT STAT STARTED TIME = COMMAND root 11 728.5 0.0 0 128 - RNL 18Sep18 182777:12.78 = [idle] root 25 98.5 0.0 0 112 - DL 18Sep18 45:18.06 = [bufdae root 0 0.0 0.0 0 480 - DLs 18Sep18 142:23.56 = [kernel root 1 0.0 0.0 5424 128 - SLs 18Sep18 0:02.80 = /sbin/i root 2 0.0 0.0 0 16 - DL 18Sep18 0:00.00 = [crypto root 3 0.0 0.0 0 16 - DL 18Sep18 0:00.00 = [crypto root 4 0.0 0.0 0 48 - DL 18Sep18 11:02.67 = [cam] root 5 0.0 0.0 0 16 - DL 18Sep18 0:00.17 = [soaiod root 6 0.0 0.0 0 16 - DL 18Sep18 0:00.17 = [soaiod root 7 0.0 0.0 0 16 - DL 18Sep18 0:00.17 = [soaiod root 8 0.0 0.0 0 16 - DL 18Sep18 0:00.17 = [soaiod root 9 0.0 0.0 0 16 - DL 18Sep18 0:00.00 = [sctp_i root 10 0.0 0.0 0 16 - DL 18Sep18 0:00.00 = [audit] root 12 0.0 0.0 0 256 - WL 18Sep18 36:53.30 = [intr] root 13 0.0 0.0 0 48 - DL 18Sep18 23:03.75 = [geom] root 14 0.0 0.0 0 80 - DL 18Sep18 0:26.05 = [usb] root 15 0.0 0.0 0 16 - DL 18Sep18 49:00.44 = [rand_h root 16 0.0 0.0 0 16 - DL 18Sep18 0:00.95 = [enc_da root 17 0.0 0.0 0 16 - DL 18Sep18 0:00.19 = [g_mirr root 18 0.0 0.0 0 16 - DL 18Sep18 0:00.65 = [g_mirr root 19 0.0 0.0 0 16 - DL 18Sep18 0:13.16 = [g_mirr root 20 0.0 0.0 0 16 - DL 18Sep18 8:17.13 = [g_mirr root 21 0.0 0.0 0 16 - DL 18Sep18 0:11.60 = [g_mirr root 22 0.0 0.0 0 48 - DL 18Sep18 10:04.32 = [pageda root 23 0.0 0.0 0 16 - DL 18Sep18 0:00.00 = [vmdaem root 24 0.0 0.0 0 16 - DNL 18Sep18 0:00.02 = [pageze root 26 0.0 0.0 0 16 - DL 18Sep18 1:54.92 = [bufspa root 27 0.0 0.0 0 16 - DL 18Sep18 131:28.87 = [syncer root 28 0.0 0.0 0 16 - DL 18Sep18 1:38.53 = [vnlru] root 29 0.0 0.0 0 16 - DL 18Sep18 1:52.41 = [g_mirr root 30 0.0 0.0 0 16 - DL 18Sep18 1:01.67 = [g_mirr kagias 560 0.0 0.0 10348 6140 - D 08:05 0:00.03 = imap: [ root 617 0.0 0.0 7812 3340 - Is 09:45 0:00.05 = /usr/lo root 816 0.0 0.0 6468 2484 - I 10:10 0:00.00 = cron: r root 992 0.0 0.0 6676 2592 - D 09:45 0:00.00 = grep -q nobody 1016 0.0 0.0 32492 11580 - I 18:51 0:00.12 = postfw root 1062 0.0 0.0 7812 3260 - Is 09:45 0:00.05 = /usr/lo root 1079 0.0 0.9 2146172 301968 - Ss Sun22 0:58.29 = php-fpm root 1352 0.0 0.0 6676 2580 - D 09:55 0:00.00 = grep -q valiraki 1685 0.0 0.0 10336 5640 - D 09:44 0:00.01 = imap: [ slumdg10 1701 0.0 0.0 9312 5072 - D 10:07 0:00.01 = pop3: [ nobody 1886 0.0 0.0 32492 11580 - S 18:52 0:00.11 = postfw disoma2 1936 0.0 0.0 10336 5564 - D 09:39 0:00.00 = imap: [ drcs 2024 0.0 0.6 2156736 205804 - DJ 09:33 0:00.13 = php-fpm iatrougr 2077 0.0 0.0 13576 9076 - D 09:38 0:00.01 = lmtp: [ slumdg10 2330 0.0 0.0 9312 5236 - D 09:32 0:00.06 = pop3: [ root 2394 0.0 0.0 7812 3340 - Is 10:05 0:00.05 = /usr/lo angelzaf 2445 0.0 0.0 11512 6972 - D 10:07 0:00.09 = pop3: [ slumdg10 21831 0.0 0.0 10356 5660 - D 09:40 0:00.01 = imap: [ slumdg10 22268 0.0 0.0 10356 5660 - D 09:52 0:00.01 = imap: [ root 22511 0.0 0.0 6676 2592 - D 10:05 0:00.00 = grep -q valiraki 22848 0.0 0.0 9320 4708 - D 10:03 0:00.00 = pop3: [ apollon 23115 0.0 0.0 10348 5656 - D 09:35 0:00.01 = imap: [ elcampo 23380 0.0 0.0 12460 6268 - D 13:24 0:00.27 = imap: [ valiraki 23385 0.0 0.0 9320 4708 - D 10:02 0:00.00 = pop3: [ apollon 23465 0.0 0.0 10336 5640 - D 09:39 0:00.01 = imap: [ apollon 23572 0.0 0.0 10336 5608 - D 09:35 0:00.01 = imap: [ osanet 55716 0.0 0.0 9320 4700 - D 09:39 0:00.00 = pop3: [ disoma2 55755 0.0 0.0 10336 5564 - D 09:50 0:00.00 = imap: [ slumdg10 55813 0.0 0.0 9320 4736 - D 10:05 0:00.00 = pop3: [ slumdg10 55861 0.0 0.0 9312 5052 - D 09:57 0:00.01 = pop3: [ root 55870 0.0 0.0 6468 2484 - I 10:05 0:00.00 = cron: r slumdg17 55940 0.0 0.0 9308 4800 - D 09:52 0:00.00 = pop3: [ chriskar 56049 0.0 0.0 9328 5016 - D 09:38 0:00.01 = pop3: [ root 56362 0.0 0.0 6468 2484 - I 09:45 0:00.00 = cron: r slumdg10 56469 0.0 0.0 10356 5644 - D 09:57 0:00.01 = imap: [ slumdg10 56799 0.0 0.0 13580 9112 - D 09:37 0:00.01 = lmtp: [ disoma2 56800 0.0 0.0 10336 5564 - D 10:03 0:00.00 = imap: [ surfaces 56857 0.0 0.0 9312 4968 - D 09:37 0:00.00 = pop3: [ root 56957 0.0 0.0 7812 3340 - Is 10:10 0:00.06 = /usr/lo kyrlas 57291 0.0 0.0 9328 5192 - D 09:49 0:00.01 = pop3: [ slumdg10 57629 0.0 0.0 9300 4680 - D 09:44 0:00.00 = pop3: [ www 57642 0.0 5.2 2382904 1719488 - D 07:43 0:05.78 = nginx: kyrlas 58015 0.0 0.0 9328 5192 - D 09:41 0:00.01 = pop3: [ kyrlas 58261 0.0 0.0 9328 5192 - D 09:42 0:00.01 = pop3: [ root 58717 0.0 0.0 6468 2484 - I 10:00 0:00.00 = cron: r slumdg10 58856 0.0 0.0 9308 4836 - D 09:59 0:00.00 = pop3: [ slumdg18 59111 0.0 0.0 13584 9084 - D 09:55 0:00.01 = lmtp: [ root 59417 0.0 0.0 6676 2580 - D 09:50 0:00.00 = grep -q philip 59431 0.0 0.6 2142400 195024 - DJ 09:30 0:00.67 = php-fpm disoma2 59577 0.0 0.0 10336 5564 - D 09:50 0:00.01 = imap: [ valiraki 60053 0.0 0.0 10336 5652 - D 10:04 0:00.01 = imap: [ root 60382 0.0 0.0 6676 2592 - D 09:40 0:00.00 = grep -q slumdg10 60645 0.0 0.0 9312 5052 - D 09:52 0:00.01 = pop3: [ valiraki 60784 0.0 0.0 10336 5640 - D 09:40 0:00.00 = imap: [ root 60835 0.0 0.0 12456 12552 - Ss 18Sep18 0:57.05 = /usr/sb elcampo 60918 0.0 0.0 9300 4948 - D 09:39 0:00.00 = pop3: [ disoma2 60956 0.0 0.0 10336 5564 - D 09:33 0:00.01 = imap: [ georgiou 61080 0.0 0.0 10336 5596 - D 09:50 0:00.01 = imap: [ root 61596 0.0 0.0 6468 2484 - I 10:05 0:00.00 = cron: r disoma2 62541 0.0 0.0 10336 5564 - D 10:01 0:00.00 = imap: [ root 62546 0.0 0.0 6468 2484 - I 09:45 0:00.00 = cron: r slumdg10 62548 0.0 0.0 9312 5052 - D 09:37 0:00.01 = pop3: [ disoma2 62798 0.0 0.0 10336 5564 - D 10:01 0:00.00 = imap: [ disoma2 63240 0.0 0.0 10336 5564 - D 09:33 0:00.00 = imap: [ valiraki 63606 0.0 0.0 9312 4692 - D 09:41 0:00.00 = pop3: [ slumdg10 64044 0.0 0.0 9308 4816 - D 10:00 0:00.00 = pop3: [ kyrlas 64109 0.0 0.0 9328 5192 - D 09:46 0:00.01 = pop3: [ traktoor 64319 0.0 0.0 10336 5596 - D 09:50 0:00.00 = imap: [ slumdg10 64491 0.0 0.0 9308 4836 - D 09:43 0:00.00 = pop3: [ www 64657 0.0 5.2 2382904 1720184 - D 07:43 0:06.65 = nginx: slumdg10 64686 0.0 0.0 10356 5644 - D 09:56 0:00.00 = imap: [ backslas 64814 0.0 0.0 10336 5596 - D 09:42 0:00.01 = imap: [ costas 64969 0.0 0.0 9316 5008 - D 09:47 0:00.01 = pop3: [ root 65169 0.0 0.0 6468 2484 - I 09:50 0:00.00 = cron: r chriskar 65430 0.0 0.0 9308 4952 - D 09:38 0:00.00 = pop3: [ slumdg10 65487 0.0 0.0 9332 4960 - D 10:02 0:00.00 = pop3: [ slumdg17 65866 0.0 0.0 9300 4656 - D 09:58 0:00.00 = pop3: [ slumdg10 66021 0.0 0.0 9332 4960 - D 09:57 0:00.01 = pop3: [ www 66116 0.0 5.2 2382904 1720748 - D 07:43 0:12.85 = nginx: disoma2 66416 0.0 0.0 10336 5564 - D 10:01 0:00.00 = imap: [ vedolger 66571 0.0 0.9 2145140 301528 - S 09:00 0:00.13 = php-fpm valiraki 67457 0.0 0.0 10336 5688 - D 09:30 0:00.01 = imap: [ root 67514 0.0 0.0 7812 3260 - Is 10:10 0:00.06 = /usr/lo valiraki 68081 0.0 0.0 9300 4684 - D 10:00 0:00.00 = pop3: [ costas 68273 0.0 0.0 10336 5592 - D 09:57 0:00.00 = imap: [ root 68307 0.0 0.0 6468 2484 - I 09:50 0:00.00 = cron: r disoma2 68413 0.0 0.0 10336 5564 - D 09:33 0:00.01 = imap: [ disoma2 68611 0.0 0.0 10336 5564 - D 10:03 0:00.00 = imap: [ valiraki 68628 0.0 0.0 9332 4712 - D 09:42 0:00.00 = pop3: [ root 68663 0.0 0.0 7812 3340 - Is 09:35 0:00.06 = /usr/lo valiraki 69097 0.0 0.0 9320 4708 - D 09:38 0:00.00 = pop3: [ valiraki 69417 0.0 0.0 10336 5636 - D 10:05 0:00.02 = imap: [ disoma2 69499 0.0 0.0 10336 5564 - D 09:33 0:00.00 = imap: [ root 69632 0.0 0.0 7812 3260 - Is 09:35 0:00.05 = /usr/lo slumdg10 70065 0.0 0.0 9308 4836 - D 09:41 0:00.00 = pop3: [ www 70177 0.0 5.2 2382904 1720724 - D 07:43 0:14.14 = nginx: costas 70283 0.0 0.0 10368 5752 - D 09:53 0:00.00 = imap: [ milas 70542 0.0 0.0 9300 4720 - D 10:04 0:00.00 = pop3: [ root 70814 0.0 0.0 7844 3320 - I Tue14 0:08.07 = dovecot karavid 70856 0.0 0.0 10344 5604 - D 09:39 0:00.00 = imap: [ slumdg10 71069 0.0 0.0 9308 4836 - D 09:34 0:00.01 = pop3: [ osanet 71388 0.0 0.0 9320 4700 - D 09:49 0:00.00 = pop3: [ slumdg10 71467 0.0 0.0 10356 5660 - D 09:44 0:00.01 = imap: [ georgiou 71584 0.0 0.0 10336 5596 - D 09:58 0:00.00 = imap: [ kagias 71696 0.0 0.0 10336 5596 - D 09:55 0:00.00 = imap: [ slumdg10 71851 0.0 0.0 9332 4960 - D 09:52 0:00.01 = pop3: [ root 72140 0.0 0.0 10044 5788 - I Tue14 0:29.05 = dovecot root 72274 0.0 0.0 13164 8300 - Is 09:38 0:00.01 = sshd: c root 72328 0.0 0.0 7812 3340 - Is 09:55 0:00.06 = /usr/lo nobody 72616 0.0 0.0 32492 11564 - I 13:08 0:00.19 = postfw slumdg10 72696 0.0 0.0 9332 4960 - D 09:37 0:00.00 = pop3: [ milas 72954 0.0 0.0 9312 4692 - D 09:37 0:00.01 = pop3: [ disoma2 74069 0.0 0.0 9312 4848 - D 10:01 0:00.00 = pop3: [ elcampo 74407 0.0 0.0 9300 4948 - D 09:40 0:00.00 = pop3: [ angelzaf 74446 0.0 0.0 13728 9308 - D 09:45 0:00.01 = lmtp: [ slumdg10 74954 0.0 0.0 9324 5012 - D 09:48 0:00.00 = pop3: [ osanet 75118 0.0 0.0 9308 4844 - D 09:35 0:00.00 = pop3: [ georgiou 75142 0.0 0.0 10980 6396 - D 09:58 0:00.01 = imap: [ chasapis 75240 0.0 0.6 2148544 210392 - DJ 09:32 0:00.40 = php-fpm backslas 75325 0.0 0.0 10336 5596 - D 10:06 0:00.00 = imap: [ slumdg10 75397 0.0 0.0 9300 4680 - D 09:42 0:00.00 = pop3: [ valiraki 76989 0.0 0.0 9320 4708 - D 09:48 0:00.00 = pop3: [ georgiou 78130 0.0 0.0 10336 5728 - D 09:53 0:00.01 = imap: [ root 78173 0.0 0.0 7812 3260 - Is 09:55 0:00.05 = /usr/lo georgiou 78216 0.0 0.0 10336 5728 - D 09:58 0:00.00 = imap: [ slumdg10 78405 0.0 0.0 9300 4680 - D 09:36 0:00.00 = pop3: [ cieltec5 78786 0.0 0.0 9320 4968 - D 09:45 0:00.00 = pop3: [ slumdg10 79527 0.0 0.0 9300 4680 - D 10:02 0:00.00 = pop3: [ root 79645 0.0 0.0 6676 2592 - D 09:50 0:00.00 = grep -q slumdg10 79675 0.0 0.0 9308 4836 - D 09:50 0:00.00 = pop3: [ root 79844 0.0 0.0 6464 1256 - DsJ 18Sep18 0:04.70 = /usr/sb valiraki 80017 0.0 0.9 2145140 301524 - S 08:30 0:00.19 = php-fpm slumdg10 80462 0.0 0.0 9320 4736 - D 09:59 0:00.00 = pop3: [ elcampo 80641 0.0 0.0 9300 4948 - D 09:40 0:00.02 = pop3: [ costas 80671 0.0 0.0 10368 5752 - D 09:59 0:00.00 = imap: [ root 81075 0.0 0.0 6676 2580 - D 10:10 0:00.00 = grep -q valiraki 81210 0.0 0.0 9320 4708 - D 09:47 0:00.00 = pop3: [ slumdg10 81219 0.0 0.0 9308 4836 - D 09:40 0:00.00 = pop3: [ slumdg10 81314 0.0 0.0 10336 5564 - D 09:48 0:00.00 = imap: [ slumdg10 81856 0.0 0.0 9300 4680 - D 09:39 0:00.00 = pop3: [ valiraki 82367 0.0 0.0 9300 4684 - D 09:51 0:00.00 = pop3: [ slumdg17 82461 0.0 0.0 10336 5564 - D 09:40 0:00.01 = imap: [ slumdg10 82649 0.0 0.0 9320 4928 - D 09:34 0:00.00 = pop3: [ apollon 82987 0.0 0.0 10336 5640 - D 09:37 0:00.01 = imap: [ planet 83036 0.0 1.0 2170424 342228 - D 09:32 0:04.05 = php-fpm georgiou 89331 0.0 0.0 10980 6360 - D 09:58 0:00.01 = imap: [ apollon 89408 0.0 0.0 10348 5660 - D 09:37 0:00.01 = imap: [ valiraki 89652 0.0 0.0 9320 4708 - D 10:03 0:00.00 = pop3: [ georgiou 89711 0.0 0.0 10336 5948 - D 09:57 0:00.01 = imap: [ slumdg10 89761 0.0 0.0 13572 9088 - D 09:44 0:00.02 = lmtp: [ root 89912 0.0 0.6 2139336 187344 - DsJ Tue15 1:01.51 = php-fpm slumdg17 90450 0.0 0.0 13564 9004 - D 09:56 0:00.01 = lmtp: [ valiraki 90485 0.0 0.0 10424 5892 - D 09:48 0:00.00 = imap: [ slumdg10 90489 0.0 0.0 9320 5028 - D 09:50 0:00.01 = pop3: [ slumdg10 90624 0.0 0.0 9300 4680 - D 09:41 0:00.00 = pop3: [ root 90629 0.0 0.0 6468 2484 - I 10:10 0:00.00 = cron: r costas 91017 0.0 0.0 9316 5008 - D 09:50 0:00.01 = pop3: [ root 91161 0.0 0.0 0 16 - DL 18Sep18 0:00.72 = [accoun valiraki 92072 0.0 0.0 9332 4712 - D 09:51 0:00.00 = pop3: [ root 92210 0.0 0.6 2138304 186496 - DJ 09:33 0:00.00 = php-fpm nobody 92331 0.0 0.0 32492 11552 - I Wed12 0:00.49 = postfw georgiou 92399 0.0 0.0 10336 5592 - D 09:52 0:00.00 = imap: [ surfaces 92682 0.0 0.0 9312 4968 - D 09:42 0:00.00 = pop3: [ pccdkeys 92686 0.0 0.8 2179396 276200 - DJ 09:33 0:00.47 = php-fpm root 92809 0.0 0.0 13164 8300 - Is 09:34 0:00.01 = sshd: c slumdg10 92953 0.0 0.0 9320 4928 - D 09:41 0:00.00 = pop3: [ valiraki 92978 0.0 0.0 9328 4708 - D 10:06 0:00.00 = pop3: [ planet 93053 0.0 1.1 2195512 368528 - D 09:26 0:24.99 = php-fpm milas 93435 0.0 0.0 9324 4708 - D 09:57 0:00.00 = pop3: [ slumdg10 94054 0.0 0.0 13584 9108 - D 09:55 0:00.01 = lmtp: [ georgiou 94081 0.0 0.0 10336 5604 - D 10:05 0:00.00 = imap: [ osanet 94530 0.0 0.0 9308 4844 - D 10:05 0:00.01 = pop3: [ apollon 95026 0.0 0.0 10348 5656 - D 09:37 0:00.01 = imap: [ slumdg17 95027 0.0 0.0 9300 4656 - D 09:56 0:00.00 = pop3: [ traktoor 95474 0.0 0.0 10344 5604 - D 09:39 0:00.00 = imap: [ costas 95568 0.0 0.0 10352 5656 - D 09:53 0:00.01 = imap: [ slumdg10 95748 0.0 0.0 9332 4960 - D 09:47 0:00.00 = pop3: [ slumdg10 96442 0.0 0.0 13584 9108 - D 09:44 0:00.02 = lmtp: [ slumdg10 96654 0.0 0.0 9300 4680 - D 09:40 0:00.00 = pop3: [ slumdg10 97302 0.0 0.0 9320 4928 - D 09:40 0:00.00 = pop3: [ planet 97733 0.0 1.1 2193144 367164 - D 09:26 0:24.45 = php-fpm root 98097 0.0 0.0 6676 2580 - D 09:35 0:00.00 = grep -q root 98162 0.0 0.0 7812 3340 - Is 09:40 0:00.05 = /usr/lo slumdg10 98423 0.0 0.0 9308 4816 - D 09:58 0:00.01 = pop3: [ apollon 98527 0.0 0.0 10336 5608 - D 09:37 0:00.00 = imap: [ root 98951 0.0 0.0 8492 2832 - I 18Sep18 0:00.61 = /usr/lo valiraki 99162 0.0 0.0 10336 5636 - D 10:01 0:00.01 = imap: [ milas 99389 0.0 0.0 9324 4708 - D 09:59 0:00.00 = pop3: [ root 50418 0.0 0.0 6996 3496 v0 R+ 10:15 0:00.00 = ps -aux root 90389 0.0 0.0 6956 3100 v0 Is 18Sep18 0:00.01 = login [ root 92268 0.0 0.0 7492 4488 v0 S 10:06 0:00.11 = -csh (c root 97507 0.0 0.0 6412 1832 v1 Is+ 18Sep18 0:00.00 = /usr/li root 548 0.0 0.0 6412 1832 v2 Is+ 18Sep18 0:00.00 = /usr/li root 5324 0.0 0.0 6412 1832 v3 Is+ 18Sep18 0:00.00 = /usr/li root 5859 0.0 0.0 6412 1832 v4 Is+ 18Sep18 0:00.00 = /usr/li root 12110 0.0 0.0 6412 1832 v5 Is+ 18Sep18 0:00.00 = /usr/li root 14102 0.0 0.0 6412 1832 v6 Is+ 18Sep18 0:00.00 = /usr/li root 19279 0.0 0.0 6412 1832 v7 Is+ 18Sep18 0:00.00 = /usr/li Here is the only error message in /var/log/messages but happens after = the issue: kernel: sonewconn: pcb 0xfffff805a1088cb0: Listen queue overflow: 3073 = already in queue awaiting acceptance (67 occurrences) kernel: sonewconn: pcb 0xfffff805a1088cb0: Listen queue overflow: 3073 = already in queue awaiting acceptance (42 occurrences) kernel: sonewconn: pcb 0xfffff805a1088cb0: Listen queue overflow: 3073 = already in queue awaiting acceptance (50 occurrences) kernel: sonewconn: pcb 0xfffff805a1088cb0: Listen queue overflow: 3073 = already in queue awaiting acceptance (42 occurrences) kernel: sonewconn: pcb 0xfffff805a1088cb0: Listen queue overflow: 3073 = already in queue awaiting acceptance (49 occurrences) = =20 =E2=80=8B The last changes made on these servers for main OS: Upgrade of pkgconf-1.4.2,1 to pkgconf-1.5.3,1 Upgrade of dovecot-2.3.2.1_1 to dovecot-2.3.3 Upgrade of bison-3.0.5,1 to bison-3.1,1 Upgrade of dovecot-pigeonhole-0.5.2_3 to dovecot-pigeonhole-0.5.3 Upgrade of vim-8.1.0342 to vim-8.1.0443 Upgrade of sshguard-2.1.0_1 to sshguard-2.2.0 Upgrade of git-lite-2.19.0 to git-lite-2.19.0_1 Upgrade of help2man-1.47.6 to help2man-1.47.7 Upgrade of nano-3.0_1 to nano-3.1 Upgrade of nginx-1.14.0_11,2 to nginx-1.14.0_12,2 Upgrade of liblz4-1.8.2,1 to liblz4-1.8.3,1 Upgrade of oniguruma-6.8.2 to oniguruma-6.9.0 Upgrade of sqlite3-3.24.0_1 to sqlite3-3.25.1 Upgrade of p5-Net-DNS-1.17,1 to p5-Net-DNS-1.18,1 Upgrade of bind911-9.11.4P1_2 to bind911-9.11.4P2 And for a JAIL I run in /home/jail/php56 : Upgrade of php56-5.6.37 to php56-5.6.38 Upgrade of php56-bcmath-5.6.37 to php56-bcmath-5.6.38 Upgrade of php56-bz2-5.6.37 to php56-bz2-5.6.38 Upgrade of php56-calendar-5.6.37 to php56-calendar-5.6.38 Upgrade of php56-ctype-5.6.37 to php56-ctype-5.6.38 Upgrade of php56-curl-5.6.37 to php56-curl-5.6.38 Upgrade of php56-dom-5.6.37 to php56-dom-5.6.38 Upgrade of php56-exif-5.6.37 to php56-exif-5.6.38 Upgrade of php56-fileinfo-5.6.37 to php56-fileinfo-5.6.38 Upgrade of php56-filter-5.6.37 to php56-filter-5.6.38 Upgrade of php56-ftp-5.6.37 to php56-ftp-5.6.38 Upgrade of php56-gd-5.6.37 to php56-gd-5.6.38 Upgrade of php56-gettext-5.6.37 to php56-gettext-5.6.38 Upgrade of php56-hash-5.6.37 to php56-hash-5.6.38 Upgrade of php56-iconv-5.6.37 to php56-iconv-5.6.38 Upgrade of php56-imap-5.6.37 to php56-imap-5.6.38 Upgrade of php56-json-5.6.37 to php56-json-5.6.38 Upgrade of php56-mbstring-5.6.37 to php56-mbstring-5.6.38 Upgrade of php56-mcrypt-5.6.37 to php56-mcrypt-5.6.38 Upgrade of php56-mysql-5.6.37 to php56-mysql-5.6.38 Upgrade of php56-mysqli-5.6.37 to php56-mysqli-5.6.38 Upgrade of php56-opcache-5.6.37 to php56-opcache-5.6.38 Upgrade of php56-openssl-5.6.37 to php56-openssl-5.6.38 Upgrade of php56-pdo-5.6.37 to php56-pdo-5.6.38 Upgrade of php56-pdo_mysql-5.6.37 to php56-pdo_mysql-5.6.38 Upgrade of php56-pdo_sqlite-5.6.37 to php56-pdo_sqlite-5.6.38 Upgrade of php56-phar-5.6.37 to php56-phar-5.6.38 Upgrade of php56-posix-5.6.37 to php56-posix-5.6.38 Upgrade of php56-session-5.6.37 to php56-session-5.6.38 Upgrade of php56-simplexml-5.6.37 to php56-simplexml-5.6.38 Upgrade of php56-soap-5.6.37 to php56-soap-5.6.38 Upgrade of php56-sockets-5.6.37 to php56-sockets-5.6.38 Upgrade of php56-sqlite3-5.6.37 to php56-sqlite3-5.6.38 Upgrade of php56-tidy-5.6.37 to php56-tidy-5.6.38 Upgrade of php56-tokenizer-5.6.37 to php56-tokenizer-5.6.38 Upgrade of php56-xml-5.6.37 to php56-xml-5.6.38 Upgrade of php56-xmlreader-5.6.37 to php56-xmlreader-5.6.38 Upgrade of php56-xmlrpc-5.6.37 to php56-xmlrpc-5.6.38 Upgrade of php56-xmlwriter-5.6.37 to php56-xmlwriter-5.6.38 Upgrade of php56-xsl-5.6.37 to php56-xsl-5.6.38 Upgrade of php56-zip-5.6.37 to php56-zip-5.6.38 Upgrade of php56-zlib-5.6.37 to php56-zlib-5.6.38 Upgrade of oniguruma-6.8.2 to oniguruma-6.9.0 Upgrade of nano-3.0_1 to nano-3.1 Upgrade of sqlite3-3.24.0_1 to sqlite3-3.25.1 Also few days ago I upgrade from FreeBSD-11.2-RELEASE-p2 to = FreeBSD-11.2-RELEASE-p3 (maybe something wrong with these patches?) Any idea how to troubleshoot the issue?=