From mboxrd@z Thu Jan 1 00:00:00 1970 From: Vladimir Davydov Subject: Re: [cgroup] WARNING: CPU: 0 PID: 0 at arch/x86/kernel/cpu/common.c:1439 warn_pre_alternatives() Date: Fri, 6 Mar 2015 09:09:37 +0300 Message-ID: <20150306060937.GC4762@esperanza> References: <20150306055758.GA28187@wfg-t540p.sh.intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Return-path: Content-Disposition: inline In-Reply-To: <20150306055758.GA28187-q6ZYBFIlbFFi0tQiZxhdj1DQ4js95KgL@public.gmane.org> Sender: cgroups-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org List-ID: Content-Transfer-Encoding: 7bit To: Fengguang Wu Cc: Tejun Heo , LKP , cgroups-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org Hi, This bug should have been fixed by "[PATCH -next] cpuset: initialize cpuset a bit early": http://www.spinics.net/lists/cgroups/msg12599.html Thanks, Vladimir On Fri, Mar 06, 2015 at 01:57:58PM +0800, Fengguang Wu wrote: > [ 0.021989] ------------[ cut here ]------------ > [ 0.021989] ------------[ cut here ]------------ > [ 0.022816] WARNING: CPU: 0 PID: 0 at arch/x86/kernel/cpu/common.c:1439 warn_pre_alternatives+0x25/0x2e() > [ 0.022816] WARNING: CPU: 0 PID: 0 at arch/x86/kernel/cpu/common.c:1439 warn_pre_alternatives+0x25/0x2e() > [ 0.024000] You're using static_cpu_has before alternatives have run! > [ 0.024000] You're using static_cpu_has before alternatives have run! > [ 0.024000] Modules linked in: > [ 0.024000] Modules linked in: > > [ 0.024000] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 4.0.0-rc1-00004-g295458e #455 > [ 0.024000] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 4.0.0-rc1-00004-g295458e #455 > [ 0.024000] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.7.5-20140531_083030-gandalf 04/01/2014 > [ 0.024000] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.7.5-20140531_083030-gandalf 04/01/2014 > [ 0.024000] 0000000000000009 > [ 0.024000] 0000000000000009 ffffffff81e03cc8 ffffffff81e03cc8 ffffffff81674d02 ffffffff81674d02 ffffffff810ca88e ffffffff810ca88e > > [ 0.024000] ffffffff81e03d18 > [ 0.024000] ffffffff81e03d18 ffffffff81e03d08 ffffffff81e03d08 ffffffff81073d6f ffffffff81073d6f 0000000000000000 0000000000000000 > > [ 0.024000] ffffffff81018f79 > [ 0.024000] ffffffff81018f79 ffffffff81e03e38 ffffffff81e03e38 0000000000000000 0000000000000000 0000000000000002 0000000000000002 > > [ 0.024000] Call Trace: > [ 0.024000] Call Trace: > [ 0.024000] [] dump_stack+0xa0/0xd5 > [ 0.024000] [] dump_stack+0xa0/0xd5 > [ 0.024000] [] ? console_unlock+0x496/0x4ef > [ 0.024000] [] ? console_unlock+0x496/0x4ef > [ 0.024000] [] warn_slowpath_common+0xc8/0xf7 > [ 0.024000] [] warn_slowpath_common+0xc8/0xf7 > [ 0.024000] [] ? warn_pre_alternatives+0x25/0x2e > [ 0.024000] [] ? warn_pre_alternatives+0x25/0x2e > [ 0.024000] [] warn_slowpath_fmt+0x4f/0x58 > [ 0.024000] [] warn_slowpath_fmt+0x4f/0x58 > [ 0.024000] [] ? native_iret+0x7/0x7 > [ 0.024000] [] ? native_iret+0x7/0x7 > [ 0.024000] [] warn_pre_alternatives+0x25/0x2e > [ 0.024000] [] warn_pre_alternatives+0x25/0x2e > [ 0.024000] [] __do_page_fault+0x2b4/0x7c2 > [ 0.024000] [] __do_page_fault+0x2b4/0x7c2 > [ 0.024000] [] do_page_fault+0x3e/0x4a > [ 0.024000] [] do_page_fault+0x3e/0x4a > [ 0.024000] [] do_async_page_fault+0x3a/0xb9 > [ 0.024000] [] do_async_page_fault+0x3a/0xb9 > [ 0.024000] [] async_page_fault+0x28/0x30 > [ 0.024000] [] async_page_fault+0x28/0x30 > [ 0.024000] [] ? cpumask_copy+0x2c/0x2f > [ 0.024000] [] ? cpumask_copy+0x2c/0x2f > [ 0.024000] [] ? cpuset_bind+0x5b/0xc4 > [ 0.024000] [] ? cpuset_bind+0x5b/0xc4 > [ 0.024000] [] cgroup_init+0x2fa/0x3d3 > [ 0.024000] [] cgroup_init+0x2fa/0x3d3 > [ 0.024000] [] start_kernel+0x6ed/0x755 > [ 0.024000] [] start_kernel+0x6ed/0x755 > [ 0.024000] [] ? early_idt_handlers+0x120/0x120 > [ 0.024000] [] ? early_idt_handlers+0x120/0x120 > [ 0.024000] [] x86_64_start_reservations+0x46/0x4f > [ 0.024000] [] x86_64_start_reservations+0x46/0x4f > [ 0.024000] [] x86_64_start_kernel+0x1b0/0x1c6 > [ 0.024000] [] x86_64_start_kernel+0x1b0/0x1c6 > [ 0.024000] ---[ end trace 37d9a871c47a31bc ]--- > [ 0.024000] ---[ end trace 37d9a871c47a31bc ]---