From owner-freebsd-stable@freebsd.org Fri Dec 9 13:23:04 2016 Return-Path: Delivered-To: freebsd-stable@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 9133DC6E09A for ; Fri, 9 Dec 2016 13:23:04 +0000 (UTC) (envelope-from killing@multiplay.co.uk) Received: from mail-wm0-x22f.google.com (mail-wm0-x22f.google.com [IPv6:2a00:1450:400c:c09::22f]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority G2" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 264AB1C48 for ; Fri, 9 Dec 2016 13:23:04 +0000 (UTC) (envelope-from killing@multiplay.co.uk) Received: by mail-wm0-x22f.google.com with SMTP id a197so26872271wmd.0 for ; Fri, 09 Dec 2016 05:23:04 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=multiplay-co-uk.20150623.gappssmtp.com; s=20150623; h=subject:to:references:from:message-id:date:user-agent:mime-version :in-reply-to; bh=xJKsv8aRPgtK/9opPeEIvfYkZ6ObSEQHgKX6NrH+FEc=; b=YfOtdhxF2OGrp6FSA4PXE55RFhDDkSx56ksT07GZVI4MwQZmyEt4e6Nt0gc7OAx++6 naBM9RDgTjZqY98U2kgMkjQR+g3Ytal6KpbGc4KkzawCngXOXQ7QazHMozDklUYru4WL 4EGmldwsqqAf2Y6XLUMjOsJZbdhmpNTA+XGcJyg+NG8hCIeOBJ7eXp8Uyhxzy8xJHReQ POmo94wuuinQeYKEQOug90S1nEYHsSnOkVHFvqzqKWw/jzK1RyXQYD4UgqzIfciNXxBU UEroY38yVrOCXNjaUmeuT417bTsc59AnzBvWQUla8oYn+47twyr2P9jBRou0D9kcmyQl agVQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:subject:to:references:from:message-id:date :user-agent:mime-version:in-reply-to; bh=xJKsv8aRPgtK/9opPeEIvfYkZ6ObSEQHgKX6NrH+FEc=; b=ATXQzKAInSwPpd7DjpaZfaESruusQyimYvpbCD3ztBxLlcH+gdvQprdqbJtE+DaG3L tSfjXpO9s2aSumXubzT33FH+7FRHqltUjbU63ih4vAvt5/xyz1OO5bmU2bGn/ABKQaUr KfR0S7/s3I6zC6xOS4H0GVuro8t/UxOP/VAZyEgERu50cPgqTD9yMsqI8K/2FxQG7YDQ oe9Fy+CLBXRrpIUhwZFRmTqXA2VdTZ2S6SVui8dINDLY18sorWdNRAQP7aubBr+r17Fp OJED1PUbYvTtL2v5FCI9Deil38jzj9m/BwHDeEcwOHFtsEzXpVqYa0GeZNDCiI+nhtQb EPXg== X-Gm-Message-State: AKaTC02bzUm81Eon7PPYoILgawSMssisf1V7vunzLiVXQCqfaesZYGD/RRt1ZiGWH8LCNxt3 X-Received: by 10.28.131.1 with SMTP id f1mr7113137wmd.43.1481289781530; Fri, 09 Dec 2016 05:23:01 -0800 (PST) Received: from [10.10.1.58] ([185.97.61.26]) by smtp.gmail.com with ESMTPSA id 14sm20609092wmk.1.2016.12.09.05.23.00 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Fri, 09 Dec 2016 05:23:00 -0800 (PST) Subject: Re: vfs.zfs.vdev.bio_delete_disable - crash while changing on the fly To: freebsd-stable@freebsd.org References: <584AADFC.8090700@norma.perm.ru> From: Steven Hartland Message-ID: <2fea8732-5980-40e5-f57e-935862145397@multiplay.co.uk> Date: Fri, 9 Dec 2016 13:23:34 +0000 User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:45.0) Gecko/20100101 Thunderbird/45.5.1 MIME-Version: 1.0 In-Reply-To: <584AADFC.8090700@norma.perm.ru> Content-Type: text/plain; charset=windows-1252; format=flowed Content-Transfer-Encoding: 7bit X-Content-Filtered-By: Mailman/MimeDel 2.1.23 X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 09 Dec 2016 13:23:04 -0000 Obviously this shouldn't happen but would need a stack trace to identify the cause. If you want to disable TRIM on ZFS you should really use: vfs.zfs.trim.enabled=0 On 09/12/2016 13:13, Eugene M. Zheganin wrote: > Hi. > > Recently I've encountered the issue with "slow TRIM" and Sandisk SSDs, > so I was told to try to disable TRIM and see what happens (thanks a lot > by the way, that did it). But changing the > vfs.zfs.vdev.bio_delete_disable on the fly can lead to the system crash > with the probability of 50%. Is it just me or is this already known ? If > it's known, why isn't this oid in a read-only list ? > > Thanks. > > P.S. My box tried to dump a core, but after a reboot savecore got > nothing, so you just have to believe me. ;) > > Eugene. > _______________________________________________ > freebsd-stable@freebsd.org mailing list > https://lists.freebsd.org/mailman/listinfo/freebsd-stable > To unsubscribe, send any mail to "freebsd-stable-unsubscribe@freebsd.org"