Date: Sat, 15 Jun 2013 11:35:03 +0100 From: Andrew Turner <andrew@fubar.geek.nz> To: Jeff Roberson <jeff@FreeBSD.org> Cc: svn-src-head@freebsd.org, svn-src-all@freebsd.org, src-committers@freebsd.org Subject: Re: svn commit: r251709 - head/sys/vm Message-ID: <20130615113503.4f5509dd@bender.Home> In-Reply-To: <201306132105.r5DL5c4F013089@svn.freebsd.org> References: <201306132105.r5DL5c4F013089@svn.freebsd.org>
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On Thu, 13 Jun 2013 21:05:38 +0000 (UTC) Jeff Roberson <jeff@FreeBSD.org> wrote: > Author: jeff > Date: Thu Jun 13 21:05:38 2013 > New Revision: 251709 > URL: http://svnweb.freebsd.org/changeset/base/251709 > > Log: > - Convert the slab free item list from a linked array of indices > to a bitmap using sys/bitset. This is much simpler, has lower space > overhead and is cheaper in most cases. > - Use a second bitmap for invariants asserts and improve the > quality of the asserts as well as the number of erroneous conditions > that we will catch. > - Drastically simplify sizing code. Special case refcnt zones > since they will be going away. > - Update stale comments. This broke booting for my on the Raspberry Pi for me. If I revert just this change the board boots as expected. Kernel output from the boot failure follows. Andrew KDB: debugger backends: ddb KDB: current backend: ddb Copyright (c) 1992-2013 The FreeBSD Project. Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994 The Regents of the University of California. All rights reserved. FreeBSD is a registered trademark of The FreeBSD Foundation. FreeBSD 10.0-CURRENT #40 r251712:251749M: Fri Jun 14 17:33:49 BST 2013 andrew@bender:/usr/obj/arm.armv6/usr/home/andrew/freebsd/repo/head/sys/RPI-B arm FreeBSD clang version 3.3 (tags/RELEASE_33/final 183502) 20130610 panic: lock "vm map (user)" 0xc05c1050 already initialized KDB: enter: panic [ thread pid 0 tid 0 ] Stopped at 0xc0261894: ldrb r15, [r15, r15, ror r15]! db>
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