From mboxrd@z Thu Jan 1 00:00:00 1970 From: Andrey Ryabinin Subject: Re: [git pull] vfs part 2 Date: Wed, 01 Jul 2015 11:41:04 +0300 Message-ID: <5593A7A0.6050400@samsung.com> References: <20150415181406.GL889@ZenIV.linux.org.uk> <5538C66F.4050404@samsung.com> <20150621211213.GA18732@ZenIV.linux.org.uk> <5587F943.3040006@samsung.com> <20150701062752.GC17109@ZenIV.linux.org.uk> <55939BE3.6040902@samsung.com> <20150701082753.GD17109@ZenIV.linux.org.uk> Mime-Version: 1.0 Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: 7bit Cc: Linus Torvalds , linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org To: Al Viro Return-path: Received: from mailout1.w1.samsung.com ([210.118.77.11]:23014 "EHLO mailout1.w1.samsung.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751651AbbGAIlK (ORCPT ); Wed, 1 Jul 2015 04:41:10 -0400 In-reply-to: <20150701082753.GD17109@ZenIV.linux.org.uk> Sender: linux-fsdevel-owner@vger.kernel.org List-ID: On 07/01/2015 11:27 AM, Al Viro wrote: > > Could you check if 3.19 was getting anything similar? I.e. in > p9_client_write() there add > if (count > rsize) > printk(KERN_ERR "bogus RWRITE: %d -> %d\n", rsize, count); > just before > p9_debug(P9_DEBUG_9P, "<<< RWRITE count %d\n", count); > and see if that triggers... > Yeah, the same thing: [ 125.962374] bogus RWRITE: 27 -> 4096 [ 207.587632] bogus RWRITE: 27 -> 4096 [ 215.055627] bogus RWRITE: 27 -> 4096 [ 235.583138] bogus RWRITE: 27 -> 4096 [ 245.749174] bogus RWRITE: 27 -> 4096 [ 246.759270] bogus RWRITE: 27 -> 4096 [ 248.020787] bogus RWRITE: 27 -> 4096