From: Andrew Cooper <andrew.cooper3@citrix.com>
To: Jan Beulich <JBeulich@suse.com>
Cc: xen-devel <xen-devel@lists.xenproject.org>, Keir Fraser <keir@xen.org>
Subject: Re: Request fairly urgent reversion of c/s 8a3c4acc9907cfec9aae9f1bc251fbf50af6828e
Date: Tue, 27 Aug 2013 15:06:18 +0100 [thread overview]
Message-ID: <521CB25A.3000305@citrix.com> (raw)
In-Reply-To: <521CC2DA02000078000EEC1C@nat28.tlf.novell.com>
On 27/08/13 14:16, Jan Beulich wrote:
>>>> On 27.08.13 at 15:02, Andrew Cooper <andrew.cooper3@citrix.com> wrote:
>> Changeset 8a3c4acc9907cfec9aae9f1bc251fbf50af6828e is my "Clean stacks
>> in debug builds patch"
>>
>> I applied the upstream version to XenServer, and resulted in some
>> spectacular fails to boot.
>>
>> Curiously, the buggy V1 "$(STACK_SIZE >> 8) " works fine on all
>> hardware, but the apparently correct "$(STACK_SIZE / 8)" causes complete
>> deadlock on AMD boxes on AP bringup, and causes Intel boxes to only boot
>> a single pcpu.
> That original version was broken in the assembly version only iirc,
> which should not get used in AP bring-up. Hence I'm puzzled.
Me too. Literally changing the "$(STACK_SIZE / 8)" to "$(STACK_SIZE >>
8)" is sufficient to prevent the problem.
I am investigating now.
~Andrew
next prev parent reply other threads:[~2013-08-27 14:06 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-08-27 13:02 Request fairly urgent reversion of c/s 8a3c4acc9907cfec9aae9f1bc251fbf50af6828e Andrew Cooper
2013-08-27 13:16 ` Jan Beulich
2013-08-27 14:06 ` Andrew Cooper [this message]
2013-08-27 14:44 ` Ian Campbell
2013-08-27 14:53 ` Andrew Cooper
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