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From: Tejun Heo <tj@kernel.org>
To: caiqian@redhat.com
Cc: graff yang <graff.yang@gmail.com>,
	Marcelo Tosatti <mtosatti@redhat.com>,
	kexec <kexec@lists.infradead.org>,
	linux-kernel <linux-kernel@vger.kernel.org>,
	dhowells@redhat.com, sonic adi <sonic.adi@gmail.com>,
	Chris Lalancette <clalance@redhat.com>,
	Avi Kivity <avi@redhat.com>
Subject: Re: kvm kdump regression
Date: Tue, 21 Sep 2010 01:09:26 +0200	[thread overview]
Message-ID: <4C97E9A6.6030909@kernel.org> (raw)
In-Reply-To: <1841599922.1349991284977843873.JavaMail.root@zmail06.collab.prod.int.phx2.redhat.com>

Hello,

Thanks a lot for testing.  Can you please verify whether the following
patch fixes the problem?

diff --git a/mm/percpu.c b/mm/percpu.c
index 58c572b..c76ef38 100644
--- a/mm/percpu.c
+++ b/mm/percpu.c
@@ -1401,9 +1401,9 @@ int __init pcpu_setup_first_chunk(const struct pcpu_alloc_info *ai,

 			if (pcpu_first_unit_cpu == NR_CPUS)
 				pcpu_first_unit_cpu = cpu;
+			pcpu_last_unit_cpu = cpu;
 		}
 	}
-	pcpu_last_unit_cpu = cpu;
 	pcpu_nr_units = unit;

 	for_each_possible_cpu(cpu)

_______________________________________________
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kexec@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/kexec

WARNING: multiple messages have this Message-ID (diff)
From: Tejun Heo <tj@kernel.org>
To: caiqian@redhat.com
Cc: graff yang <graff.yang@gmail.com>,
	Marcelo Tosatti <mtosatti@redhat.com>,
	kexec <kexec@lists.infradead.org>,
	linux-kernel <linux-kernel@vger.kernel.org>,
	dhowells@redhat.com, sonic adi <sonic.adi@gmail.com>,
	Chris Lalancette <clalance@redhat.com>,
	Avi Kivity <avi@redhat.com>
Subject: Re: kvm kdump regression
Date: Tue, 21 Sep 2010 01:09:26 +0200	[thread overview]
Message-ID: <4C97E9A6.6030909@kernel.org> (raw)
In-Reply-To: <1841599922.1349991284977843873.JavaMail.root@zmail06.collab.prod.int.phx2.redhat.com>

Hello,

Thanks a lot for testing.  Can you please verify whether the following
patch fixes the problem?

diff --git a/mm/percpu.c b/mm/percpu.c
index 58c572b..c76ef38 100644
--- a/mm/percpu.c
+++ b/mm/percpu.c
@@ -1401,9 +1401,9 @@ int __init pcpu_setup_first_chunk(const struct pcpu_alloc_info *ai,

 			if (pcpu_first_unit_cpu == NR_CPUS)
 				pcpu_first_unit_cpu = cpu;
+			pcpu_last_unit_cpu = cpu;
 		}
 	}
-	pcpu_last_unit_cpu = cpu;
 	pcpu_nr_units = unit;

 	for_each_possible_cpu(cpu)

  reply	other threads:[~2010-09-20 23:07 UTC|newest]

Thread overview: 28+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <1888861854.1349971284977836487.JavaMail.root@zmail06.collab.prod.int.phx2.redhat.com>
2010-09-20 10:17 ` kvm kdump regression caiqian
2010-09-20 10:17   ` caiqian
2010-09-20 23:09   ` Tejun Heo [this message]
2010-09-20 23:09     ` Tejun Heo
2010-09-21  0:40     ` CAI Qian
2010-09-21  0:40       ` CAI Qian
2010-09-21  6:13       ` [PATCH] percpu: fix pcpu_last_unit_cpu Tejun Heo
2010-09-21  6:13         ` Tejun Heo
2010-09-14  3:09 kvm kdump regression CAI Qian
2010-09-14  3:09 ` CAI Qian
2010-09-14  8:26 ` Tejun Heo
2010-09-14  8:26   ` Tejun Heo
2010-09-14  8:29   ` CAI Qian
2010-09-14  8:29     ` CAI Qian
2010-09-17 15:22     ` Tejun Heo
2010-09-17 15:22       ` Tejun Heo
2010-09-18 12:36       ` CAI Qian
2010-09-18 12:36         ` CAI Qian
2010-09-19 15:02         ` Tejun Heo
2010-09-19 15:02           ` Tejun Heo
2010-09-20  8:00           ` CAI Qian
2010-09-20  8:00             ` CAI Qian
2010-09-20  9:12             ` Tejun Heo
2010-09-20  9:12               ` Tejun Heo
2010-09-20  9:44               ` CAI Qian
2010-09-20  9:44                 ` CAI Qian
2010-09-20  9:49                 ` CAI Qian
2010-09-20  9:49                   ` CAI Qian

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