Date: Thu, 9 Nov 2017 01:25:28 +0200 From: Konstantin Belousov <kostikbel@gmail.com> To: Emmanuel Vadot <manu@bidouilliste.com> Cc: Jeff Roberson <jeff@FreeBSD.org>, src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: Re: svn commit: r325530 - in head/sys: amd64/amd64 arm64/arm64 fs/tmpfs kern mips/mips powerpc/aim powerpc/powerpc sparc64/sparc64 vm x86/iommu Message-ID: <20171108232528.GX2566@kib.kiev.ua> In-Reply-To: <20171108234115.421969741ee75d5bb3d905e5@bidouilliste.com> References: <201711080239.vA82dbJ6009161@repo.freebsd.org> <20171108234115.421969741ee75d5bb3d905e5@bidouilliste.com>
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On Wed, Nov 08, 2017 at 11:41:15PM +0100, Emmanuel Vadot wrote: > > Hello Jeff, > > On Wed, 8 Nov 2017 02:39:37 +0000 (UTC) > Jeff Roberson <jeff@FreeBSD.org> wrote: > > > Author: jeff > > Date: Wed Nov 8 02:39:37 2017 > > New Revision: 325530 > > URL: https://svnweb.freebsd.org/changeset/base/325530 > > > > Log: > > Replace manyinstances of VM_WAIT with blocking page allocation flags > > similar to the kernel memory allocator. > > > > This simplifies NUMA allocation because the domain will be known at wait > > time and races between failure and sleeping are eliminated. This also > > reduces boilerplate code and simplifies callers. > > > > A wait primitive is supplied for uma zones for similar reasons. This > > eliminates some non-specific VM_WAIT calls in favor of more explicit > > sleeps that may be satisfied without new pages. > > > > Reviewed by: alc, kib, markj > > Tested by: pho > > Sponsored by: Netflix, Dell/EMC Isilon > > > > This break armv7 (atleast) kernel : > > KDB: debugger backends: > ddb KDB: current backend: > ddb Copyright (c) 1992-2017 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 12.0-CURRENT #51 3c355d849c9(HEAD): Wed Nov 8 > 23:24:16 CET 2017 > elbarto@knuckles.blih.net:/usr/home/elbarto/Work/freebsd/obj/usr/home/elbarto/Work/freebsd/freebsd.git/arm.armv7/sys/GENERIC > arm FreeBSD clang version 5.0.0 (tags/RELEASE_500/final 312559) (based > on LLVM 5.0.0svn) WARNING: WITNESS option enabled, expect reduced > performance. panic: inconsistent object(0)/req(8) cpuid = > 0 time = Should be fixed by r325566.
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