Date: Sun, 15 Jan 2012 16:57:18 +0000 (UTC) From: Nathan Whitehorn <nwhitehorn@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r230139 - head/sys/powerpc/ps3 Message-ID: <201201151657.q0FGvIh1091657@svn.freebsd.org>
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Author: nwhitehorn Date: Sun Jan 15 16:57:18 2012 New Revision: 230139 URL: http://svn.freebsd.org/changeset/base/230139 Log: Now that we can tolerate LPAR context switches on the PS3 hypervisor, going to hypervisor-idle on both threads will not hang the kernel. Modified: head/sys/powerpc/ps3/platform_ps3.c Modified: head/sys/powerpc/ps3/platform_ps3.c ============================================================================== --- head/sys/powerpc/ps3/platform_ps3.c Sun Jan 15 14:03:05 2012 (r230138) +++ head/sys/powerpc/ps3/platform_ps3.c Sun Jan 15 16:57:18 2012 (r230139) @@ -247,16 +247,6 @@ ps3_real_maxaddr(platform_t plat) static void ps3_cpu_idle(void) { - static volatile int pausing = 0; - - /* - * XXX: It appears that the PS3 can livelock if both threads - * call lv1_pause(0) simultaneously. - */ - if (!atomic_cmpset_int(&pausing, 0, 1)) - return; - lv1_pause(0); - pausing = 0; }
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