Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751134Ab0HQUqQ (ORCPT ); Tue, 17 Aug 2010 16:46:16 -0400 Received: from mail-gw0-f46.google.com ([74.125.83.46]:62770 "EHLO mail-gw0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750705Ab0HQUqJ (ORCPT ); Tue, 17 Aug 2010 16:46:09 -0400 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:sender:in-reply-to:references:date :x-google-sender-auth:message-id:subject:from:to:cc:content-type; b=hrLsfO9o2CnrlXePtN0LLUvR70HGVEUNdxkMdT1ttof2cjdPBM6S80EL2kXCR4PQF8 cYGlBSBy8HxQM9Wx9CfwFK96wu5T923Py8VHvyYe6Ei2AYHVZO0nFT/f9Vz4YfkG7GJh G4dzGZNF4kVBARqbwbEOXPyb3wmqSXgwkG4rk= MIME-Version: 1.0 In-Reply-To: References: <20100816.211218.189709876.davem@davemloft.net> Date: Tue, 17 Aug 2010 13:46:08 -0700 X-Google-Sender-Auth: -YCYgse33vO1D0jDW_Uz8fUCIVI Message-ID: Subject: Re: tasks getting stuck on mmap_sem? From: Tony Luck To: Linus Torvalds Cc: David Miller , Michel Lespinasse , David Howells , Andrew Morton , linux-kernel@vger.kernel.org Content-Type: text/plain; charset=ISO-8859-1 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 757 Lines: 16 On Tue, Aug 17, 2010 at 11:24 AM, Tony Luck wrote: > ... but it isn't trivial > for me to try this out (my systems are on an isolated lab network segment). Setting up for "git pull" would have been messy - but "git grep" is multi-threaded in newer versions of git. So I've set a loop to keep running "git grep" over and over. Load average is above 7, so there must be some threading going on, even though I only see one "git" process in "top(1)". Seems to be running fine so far. -Tony -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/