From owner-freebsd-stable@freebsd.org Tue Oct 18 10:53:11 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 46D2EC17EBF for ; Tue, 18 Oct 2016 10:53:11 +0000 (UTC) (envelope-from avg@FreeBSD.org) Received: from citapm.icyb.net.ua (citapm.icyb.net.ua [212.40.38.140]) by mx1.freebsd.org (Postfix) with ESMTP id 8F4DC1EBA for ; Tue, 18 Oct 2016 10:53:10 +0000 (UTC) (envelope-from avg@FreeBSD.org) Received: from porto.starpoint.kiev.ua (porto-e.starpoint.kiev.ua [212.40.38.100]) by citapm.icyb.net.ua (8.8.8p3/ICyb-2.3exp) with ESMTP id NAA24377; Tue, 18 Oct 2016 13:53:03 +0300 (EEST) (envelope-from avg@FreeBSD.org) Received: from localhost ([127.0.0.1]) by porto.starpoint.kiev.ua with esmtp (Exim 4.34 (FreeBSD)) id 1bwS10-0000i2-WD; Tue, 18 Oct 2016 13:53:03 +0300 Subject: Re: Repeatable panic on ZFS filesystem (used for backups); 11.0-STABLE To: Steven Hartland , freebsd-stable@FreeBSD.org References: <3d4f25c9-a262-a373-ec7e-755325f8810b@denninger.net> <9adecd24-6659-0da5-5c05-d0d3957a2cb3@denninger.net> <0f58b11f-0bca-bc08-6f90-4e6e530f9956@denninger.net> <43a67287-f4f8-5d3e-6c5e-b3599c6adb4d@multiplay.co.uk> From: Andriy Gapon Message-ID: Date: Tue, 18 Oct 2016 13:52:06 +0300 User-Agent: Mozilla/5.0 (X11; FreeBSD amd64; rv:45.0) Gecko/20100101 Thunderbird/45.4.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: 7bit 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: Tue, 18 Oct 2016 10:53:11 -0000 On 18/10/2016 00:43, Steven Hartland wrote: > On 17/10/2016 20:52, Andriy Gapon wrote: >> On 17/10/2016 21:54, Steven Hartland wrote: >>> You're hitting stack exhaustion, have you tried increasing the kernel stack pages? >>> It can be changed from /boot/loader.conf >>> kern.kstack_pages="6" >>> >>> Default on amd64 is 4 IIRC >> Steve, >> >> perhaps you can think of a more proper fix? :-) >> https://lists.freebsd.org/pipermail/freebsd-stable/2016-July/085047.html > Yes need to find some time to have a look at it, but given how rare this is and > with TRIM being re-implemented upstream in a totally different manor I'm > reticent to spend any real time on it. Fair enough. Especially given that there is only a single affected system reported so far. -- Andriy Gapon