From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-wg0-f41.google.com ([74.125.82.41]:51465 "EHLO mail-wg0-f41.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753687AbaJQTYm (ORCPT ); Fri, 17 Oct 2014 15:24:42 -0400 Received: by mail-wg0-f41.google.com with SMTP id b13so1605516wgh.24 for ; Fri, 17 Oct 2014 12:24:40 -0700 (PDT) Received: from localhost (host86-171-140-171.range86-171.btcentralplus.com. [86.171.140.171]) by mx.google.com with ESMTPSA id ew4sm520738wid.19.2014.10.17.12.24.39 for (version=TLSv1.2 cipher=RC4-SHA bits=128/128); Fri, 17 Oct 2014 12:24:39 -0700 (PDT) Date: Fri, 17 Oct 2014 20:24:38 +0100 From: Leonidas Spyropoulos To: "linux-btrfs@vger.kernel.org" Subject: Re: Ccache on btrfs Message-ID: <20141017192438.GA20983@sune> References: <2700CF0B-F340-44F7-A4D6-0C5FF05CCD81@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii In-Reply-To: Sender: linux-btrfs-owner@vger.kernel.org List-ID: On 17/10/14, Timofey Titovets wrote: > i use ccache and often compile linux from git, > I don't catch any errors with it. > Interesting, I re-enabled ccache on an ext4 partition (HDD) and worked fine. So I suspect it's something to do with btrfs and SSD. My mount options are: /dev/sda3 on /home type btrfs (rw,relatime,ssd,discard,nospace_cache) The problem is that I can't get hold of kernel panic since it's not in the journal [1]. I don't know a way to get hold of the kernel panic log to help anyway. What would it be useful to debug it? [1] using systemd Leonidas