From mboxrd@z Thu Jan 1 00:00:00 1970 From: Greg KH Subject: Re: 3.16.2 also contains bug read from uninitialized memory fs/dcache.c:2440 Date: Sat, 20 Sep 2014 07:38:03 -0700 Message-ID: <20140920143803.GB14094@kroah.com> References: Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: stable@vger.kernel.org, linux-fsdevel@vger.kernel.org, Alexander Viro , David Howells To: Lampshade Return-path: Received: from out3-smtp.messagingengine.com ([66.111.4.27]:49725 "EHLO out3-smtp.messagingengine.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755944AbaITOix (ORCPT ); Sat, 20 Sep 2014 10:38:53 -0400 Received: from compute3.internal (compute3.nyi.internal [10.202.2.43]) by gateway2.nyi.internal (Postfix) with ESMTP id 5A603205FE for ; Sat, 20 Sep 2014 10:38:52 -0400 (EDT) Content-Disposition: inline In-Reply-To: Sender: linux-fsdevel-owner@vger.kernel.org List-ID: On Sat, Sep 20, 2014 at 03:20:22PM +0200, Lampshade wrote: > > 3.16.3 also contains this bug. This time it is triggered by line 2439 > bug id 74321 at kernel's bugzilla > > [ 108.490143] random: nonblocking pool is initialized > [ 115.938157] WARNING: kmemcheck: Caught 64-bit read from unallocated memory (ffff880099c991c8) > [ 115.939549] 88004000070000000000000000000000d057915e0188ffffc05cc9990088ffff4c1fc96f09000000b891c9990088ffff38409e990088ffff71756575652e62696e00ffffffffffffffffffffffffffffffffffffffffff0003000000ffffffff00406181ffffffff00f458590188ffffffffffffffffffff0000000000000000 > [ 115.943020] i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i a a a a a a a a a a a a a a a i i i i i a a a a i i i i i i i i i i i i i i i i a a a a a a a a i i i i i i i i > [ 115.946647] ^ > [ 115.948244] RIP: 0010:[] [] switch_names+0xb2/0xe0 Looks like a false-positive, try asking the kmemcheck developers about this. greg k-h