From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from psmtp.com (na3sys010amx184.postini.com [74.125.245.184]) by kanga.kvack.org (Postfix) with SMTP id E89B88D0001 for ; Fri, 11 May 2012 18:23:46 -0400 (EDT) Date: Sat, 12 May 2012 01:23:41 +0300 From: Sami Liedes Subject: Re: [Bug 43227] New: BUG: Bad page state in process wcg_gfam_6.11_i Message-ID: <20120511222341.GD7387@sli.dy.fi> References: <20120511125921.a888e12c.akpm@linux-foundation.org> <20120511200213.GB7387@sli.dy.fi> <20120511133234.6130b69a.akpm@linux-foundation.org> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="VV4b6MQE+OnNyhkM" Content-Disposition: inline In-Reply-To: <20120511133234.6130b69a.akpm@linux-foundation.org> Sender: owner-linux-mm@kvack.org List-ID: To: Andrew Morton Cc: linux-mm@kvack.org, bugzilla-daemon@bugzilla.kernel.org --VV4b6MQE+OnNyhkM Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Fri, May 11, 2012 at 01:32:34PM -0700, Andrew Morton wrote: > Sure, thanks, that might turn something up.=20 > Documentation/SubmitChecklist recommends=20 >=20 > : 12: Has been tested with CONFIG_PREEMPT, CONFIG_DEBUG_PREEMPT, > : CONFIG_DEBUG_SLAB, CONFIG_DEBUG_PAGEALLOC, CONFIG_DEBUG_MUTEXES, > : CONFIG_DEBUG_SPINLOCK, CONFIG_DEBUG_ATOMIC_SLEEP, CONFIG_PROVE_RCU > : and CONFIG_DEBUG_OBJECTS_RCU_HEAD all simultaneously enabled. >=20 > although that list might be a bit out of date; it certainly should > include CONFIG_DEBUG_VM! I wonder if there's somewhere a recommended list of generally most useful debug options that only have a moderate performance impact? I'd be happy to use a set of useful debug flags that generally impacts performance by, say, <10%, on the computers I use for my everyday work to help catch bugs. But it's sometimes quite hard to assess the impact of different Kernel hacking options from just the description... Sami --VV4b6MQE+OnNyhkM Content-Type: application/pgp-signature; name="signature.asc" Content-Description: Digital signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQIcBAEBCgAGBQJPrZFtAAoJEKLT589SE0a0GCIP/jZpnQE2qrN8YhTdYYmwjfQS yNJ4VPbSeGPLALu7cRWS1sFoPLRgkTzHbUIPtG2SDJ/xFfiRzPzM81ENxPDcFJ2k eiv+K3VE+Y6F2CMtcJOfd7mhOreGE28CmR8cn9z3ankbnHnDFXJ1RVwCXuxj7SJQ USR3jiKBR9tevDCQUlbEE6ZX2e50XYen3rAOIPTgIqxAIqNyQ7f0kMSTJhPIeiEs nBlaNe2P/LCDFk9+RnsxbUwbkUUpc3r2MsdXchybxVNNaF28Qm2AGwrIVGIrFjyC FY308wDyh/l/b5sXIlHPlEN8TLgfm6q4G7Ai5wAWa3WQZ9oPvkXq5+lPi5I36jgu QGcXcBogos0SZZUs8+GG+HCLU+bblmmLTQ3sdH2qg75KKm3InpJeXfqQMALfJj52 t+4Xlz/Sp2rW3NxwdB9UkS+h2ces0W7fgnTVE3DxGC3V2G2lbLgrhxP+ywssGMtA BM4lbFMJzfVLg+1gB75GkQMNEI/BVfu2WTKRB6dHTs2Ih8+deJnsjAdlRUxXhVT+ JRKWXTJUfrBFAerHvO4LXK7s0nAlN8gcf6FOhZro/qfJCue1prmGlM9SJZHKAVdR 2K9npCtJUoDBX0nAo1eFNPbkZght+bU5xf0Sf7t8bfQyYxLVYqp/JQAWoHrCgoPC r/M3ASnskzg5sXAX9EoV =sabl -----END PGP SIGNATURE----- --VV4b6MQE+OnNyhkM-- -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Fight unfair telecom internet charges in Canada: sign http://stopthemeter.ca/ Don't email: email@kvack.org