From mboxrd@z Thu Jan  1 00:00:00 1970
From: Don Slutz <dslutz@verizon.com>
Subject: Re: [BUG] -- unable to boot 4.5-unstable after commit
 e13b3203990706db1313ec2aadd9a30b249ee793
Date: Thu, 28 Aug 2014 18:07:44 -0400
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To: Don Slutz <dslutz@verizon.com>
Cc: Andrew Cooper <andrew.cooper3@citrix.com>, "xen-devel@lists.xen.org" <xen-devel@lists.xen.org>
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If I remove "apic_verbosity=verbose" my server will now boot.
     -Don Slutz

On 08/28/14 17:49, Don Slutz wrote:
> The key here may be the command line options:
>
> (XEN) Command line: placeholder dom0_mem=2G loglvl=all 
> guest_loglvl=all console_timestamps=1 com1=9600,8n1 console=com1 
> apic_verbosity=verbose crashkernel=256M@256M no-cpuidle
>
>     -Don Slutz
>
> On 08/28/14 17:47, Don Slutz wrote:
>> dcs-xen-54:~/xen>git-bisect good
>> e13b3203990706db1313ec2aadd9a30b249ee793 is the first bad commit
>> commit e13b3203990706db1313ec2aadd9a30b249ee793
>> Author: Andrew Cooper <andrew.cooper3@citrix.com>
>> Date:   Fri Aug 22 14:32:45 2014 +0200
>>
>>     x86/irq: process softirqs in irq keyhandlers
>>
>>     Large machines with lots of interrupts can trip over the Xen 
>> watchdog.
>>
>>     Suggested-by: Santosh Jodh <Santosh.Jodh@citrix.com>
>>     Signed-off-by: Andrew Cooper <andrew.cooper3@citrix.com>
>>     Tested-by: Santosh Jodh <Santosh.Jodh@citrix.com>
>>
>> :040000 040000 d43de46a55f8ca96c6bbcb0fcc8b705d439d44c8 
>> e949c76ae45ecb1a6e1d5fce9ada5b89712fbd87 M      xen
>>
>> This patch prevents xen from booting on my hardware.
>>
>> Here is the tail of the serial console output:
>>
>> ...
>> (XEN) init IO_APIC IRQs
>> (XEN)  IO-APIC (apicid-pin) 0-0, 0-16, 0-17, 0-18, 0-19, 0-20, 0-21, 
>> 0-22, 0-23 not connected.
>> (XEN) ..TIMER: vector=0xF0 apic1=0 pin1=2 apic2=-1 pin2=-1
>> (XEN) number of MP IRQ sources: 15.
>> (XEN) number of IO-APIC #0 registers: 24.
>> (XEN) testing the IO APIC.......................
>>
>>
>>     -Don Slutz
>
>
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