From owner-freebsd-questions@freebsd.org Sat Aug 10 16:14:08 2019 Return-Path: Delivered-To: freebsd-questions@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 3E229BFE64 for ; Sat, 10 Aug 2019 16:14:08 +0000 (UTC) (envelope-from lee@adminart.net) Received: from mo6-p00-ob.smtp.rzone.de (mo6-p00-ob.smtp.rzone.de [IPv6:2a01:238:20a:202:5300::12]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) server-signature RSA-PSS (4096 bits) client-signature RSA-PSS (2048 bits) client-digest SHA256) (Client CN "*.smtp.rzone.de", Issuer "TeleSec ServerPass Class 2 CA" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 465Rxq066Qz3PDN for ; Sat, 10 Aug 2019 16:14:06 +0000 (UTC) (envelope-from lee@adminart.net) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; t=1565453643; s=strato-dkim-0002; d=adminart.net; h=References:Message-ID:Date:In-Reply-To:Subject:Cc:To:From: X-RZG-CLASS-ID:X-RZG-AUTH:From:Subject:Sender; bh=/5iFbXfmfQX7X7cLNk8EPxpFhmuKjLEQg+61iS0K4Uc=; b=Ebcf3HjJtWbePo5o+TXL5AJNUavqe1/ZOeuK5o5lU6Gb4E3yMTdMk8z+sml8VeUn6t tFMkyYOvCjEpCSt40tm865U7tNx+C9bo2w+O4nWOFfYBKVnxVhtCoKRoQe8kYx9fNduF 21QhxJhWPiAddBRBDyr+GXcpluv5AZ1hDnOzh+SrRWTuFLo2PZl2lPMEOeDTaFPAwDZk yfCrlVTdVw1RPLgobvS2+9g4oGbIwCZaZXSol9bSqkkWXEMXU+og2MbNrW1NXBn0CzjP jZdsS4ylEcv/V2/tJc29p64ml8WCVTwD4qukUXbTUGMupQZeB5hpyut/7ufdA1hBo1rS fKXQ== X-RZG-AUTH: ":O2kGeEG7b/pS1FS4THaxjVF9w0vVgfQ9xGcjwO5WMRo5c+h5ceMqQWZ3yrBp+ARdaXvxIDf7nlw=" X-RZG-CLASS-ID: mo00 Received: from himinbjorg.adminart.net by smtp.strato.de (RZmta 44.24 DYNA|AUTH) with ESMTPSA id e0059dv7AGE3y8U (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (curve secp521r1 with 521 ECDH bits, eq. 15360 bits RSA)) (Client did not present a certificate); Sat, 10 Aug 2019 18:14:03 +0200 (CEST) Received: from toy.adminart.net ([192.168.3.55]) by himinbjorg.adminart.net with esmtps (TLSv1.2:ECDHE-RSA-AES256-GCM-SHA384:256) (Exim 4.92) (envelope-from ) id 1hwU0I-0000Y1-EQ; Sat, 10 Aug 2019 18:14:02 +0200 Received: from lee by toy.adminart.net with local (Exim 4.92) (envelope-from ) id 1hwU0I-0000uT-Cl; Sat, 10 Aug 2019 18:14:02 +0200 From: hw To: Korolev Sergey Cc: freebsd-questions@freebsd.org, Graham Perrin Subject: Re: kill -9 does nothing In-Reply-To: <05B96F5A-2141-460E-B9F1-7BC4A7854B4A@febras.net> (Korolev Sergey's message of "Sat, 10 Aug 2019 08:53:11 +1000") Date: Sat, 10 Aug 2019 18:11:00 +0200 Organization: my virtual residence Message-ID: <87zhkh80h7.fsf@toy.adminart.net> References: <20190808180557.abbdd74fcdb74806aed1fd98@gc-24.de> <87o90yxy99.fsf@toy.adminart.net> <05B96F5A-2141-460E-B9F1-7BC4A7854B4A@febras.net> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/27.0.50 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain X-Rspamd-Queue-Id: 465Rxq066Qz3PDN X-Spamd-Bar: --- Authentication-Results: mx1.freebsd.org; dkim=pass header.d=adminart.net header.s=strato-dkim-0002 header.b=Ebcf3HjJ; dmarc=none; spf=none (mx1.freebsd.org: domain of lee@adminart.net has no SPF policy when checking 2a01:238:20a:202:5300::12) smtp.mailfrom=lee@adminart.net X-Spamd-Result: default: False [-3.12 / 15.00]; ARC_NA(0.00)[]; RCVD_VIA_SMTP_AUTH(0.00)[]; R_DKIM_ALLOW(-0.20)[adminart.net:s=strato-dkim-0002]; NEURAL_HAM_MEDIUM(-1.00)[-1.000,0]; FROM_HAS_DN(0.00)[]; RCPT_COUNT_THREE(0.00)[3]; TO_DN_SOME(0.00)[]; NEURAL_HAM_LONG(-1.00)[-1.000,0]; MIME_GOOD(-0.10)[text/plain]; DMARC_NA(0.00)[adminart.net]; HAS_ORG_HEADER(0.00)[]; RCVD_COUNT_THREE(0.00)[4]; TO_MATCH_ENVRCPT_SOME(0.00)[]; DKIM_TRACE(0.00)[adminart.net:+]; NEURAL_HAM_SHORT(-0.25)[-0.251,0]; R_SPF_NA(0.00)[]; FORGED_SENDER(0.30)[hw@adminart.net,lee@adminart.net]; RCVD_IN_DNSWL_LOW(-0.10)[2.1.0.0.0.0.0.0.0.0.0.0.0.0.3.5.2.0.2.0.a.0.2.0.8.3.2.0.1.0.a.2.list.dnswl.org : 127.0.5.1]; MIME_TRACE(0.00)[0:+]; RCVD_TLS_LAST(0.00)[]; ASN(0.00)[asn:6724, ipnet:2a01:238::/32, country:DE]; FROM_NEQ_ENVFROM(0.00)[hw@adminart.net,lee@adminart.net]; IP_SCORE(-0.77)[ipnet: 2a01:238::/32(-3.39), asn: 6724(-0.46), country: DE(-0.01)] X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 10 Aug 2019 16:14:08 -0000 Korolev Sergey writes: > I don't think this is an NFS problem. I had got the same problem with > Apache + ZFS combination (but it was an old FreeBSD version like 7-8, > I don't remember). The main point is that the process hangs in iowait > state, which it never will exit from. The only solution is hard > reboot. The reason of that is rather more complicated, than just "NFS > is bad", or "Apache is bad". First I would need to establish whether it actually was a deadlock or desirable behaviour which is to ensure that data doesn't get lost. It could also have been an incompatibility between different implementations, or even versions, of NFS. > This is an Open Source, and you could always help with a patch, > extensive debug info to clarify the bug, etc, so any help will be > appreciated. I know how that goes: My help is so appreciated that reported bugs are either being ignored or met with a refusal to fix them, and provided patches that do fix the bug are also being ignored. Same goes for feature requests. Help is _not_ appreciated, that much is obvious.