Re: [cgroup] WARNING: CPU: 0 PID: 0 at arch/x86/kernel/cpu/common.c:1439 warn_pre_alternatives()
From: Fengguang Wu
Date: Fri Mar 06 2015 - 01:31:44 EST
Hi Vladimir,
On Fri, Mar 06, 2015 at 09:09:37AM +0300, Vladimir Davydov wrote:
> Hi,
>
> This bug should have been fixed by "[PATCH -next] cpuset: initialize
> cpuset a bit early":
>
> http://www.spinics.net/lists/cgroups/msg12599.html
OK, sorry for the late report! I only searched for the full commit id
for possible duplicates, should check the patch subject, too.
Thanks,
Fengguang
> 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] [<ffffffff81674d02>] dump_stack+0xa0/0xd5
> > [ 0.024000] [<ffffffff81674d02>] dump_stack+0xa0/0xd5
> > [ 0.024000] [<ffffffff810ca88e>] ? console_unlock+0x496/0x4ef
> > [ 0.024000] [<ffffffff810ca88e>] ? console_unlock+0x496/0x4ef
> > [ 0.024000] [<ffffffff81073d6f>] warn_slowpath_common+0xc8/0xf7
> > [ 0.024000] [<ffffffff81073d6f>] warn_slowpath_common+0xc8/0xf7
> > [ 0.024000] [<ffffffff81018f79>] ? warn_pre_alternatives+0x25/0x2e
> > [ 0.024000] [<ffffffff81018f79>] ? warn_pre_alternatives+0x25/0x2e
> > [ 0.024000] [<ffffffff81073e6a>] warn_slowpath_fmt+0x4f/0x58
> > [ 0.024000] [<ffffffff81073e6a>] warn_slowpath_fmt+0x4f/0x58
> > [ 0.024000] [<ffffffff81680f47>] ? native_iret+0x7/0x7
> > [ 0.024000] [<ffffffff81680f47>] ? native_iret+0x7/0x7
> > [ 0.024000] [<ffffffff81018f79>] warn_pre_alternatives+0x25/0x2e
> > [ 0.024000] [<ffffffff81018f79>] warn_pre_alternatives+0x25/0x2e
> > [ 0.024000] [<ffffffff81039306>] __do_page_fault+0x2b4/0x7c2
> > [ 0.024000] [<ffffffff81039306>] __do_page_fault+0x2b4/0x7c2
> > [ 0.024000] [<ffffffff81039852>] do_page_fault+0x3e/0x4a
> > [ 0.024000] [<ffffffff81039852>] do_page_fault+0x3e/0x4a
> > [ 0.024000] [<ffffffff81034109>] do_async_page_fault+0x3a/0xb9
> > [ 0.024000] [<ffffffff81034109>] do_async_page_fault+0x3a/0xb9
> > [ 0.024000] [<ffffffff81681a28>] async_page_fault+0x28/0x30
> > [ 0.024000] [<ffffffff81681a28>] async_page_fault+0x28/0x30
> > [ 0.024000] [<ffffffff8110d870>] ? cpumask_copy+0x2c/0x2f
> > [ 0.024000] [<ffffffff8110d870>] ? cpumask_copy+0x2c/0x2f
> > [ 0.024000] [<ffffffff8110e174>] ? cpuset_bind+0x5b/0xc4
> > [ 0.024000] [<ffffffff8110e174>] ? cpuset_bind+0x5b/0xc4
> > [ 0.024000] [<ffffffff8234d780>] cgroup_init+0x2fa/0x3d3
> > [ 0.024000] [<ffffffff8234d780>] cgroup_init+0x2fa/0x3d3
> > [ 0.024000] [<ffffffff8232f5fe>] start_kernel+0x6ed/0x755
> > [ 0.024000] [<ffffffff8232f5fe>] start_kernel+0x6ed/0x755
> > [ 0.024000] [<ffffffff8232e120>] ? early_idt_handlers+0x120/0x120
> > [ 0.024000] [<ffffffff8232e120>] ? early_idt_handlers+0x120/0x120
> > [ 0.024000] [<ffffffff8232e585>] x86_64_start_reservations+0x46/0x4f
> > [ 0.024000] [<ffffffff8232e585>] x86_64_start_reservations+0x46/0x4f
> > [ 0.024000] [<ffffffff8232e73e>] x86_64_start_kernel+0x1b0/0x1c6
> > [ 0.024000] [<ffffffff8232e73e>] x86_64_start_kernel+0x1b0/0x1c6
> > [ 0.024000] ---[ end trace 37d9a871c47a31bc ]---
> > [ 0.024000] ---[ end trace 37d9a871c47a31bc ]---
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