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Re: [Xen-ia64-devel] [Q]ltrace and do_ssc

To: Alex Williamson <alex.williamson@xxxxxx>
Subject: Re: [Xen-ia64-devel] [Q]ltrace and do_ssc
From: Atsushi SAKAI <sakaia@xxxxxxxxxxxxxx>
Date: Wed, 29 Nov 2006 17:24:04 +0900
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Hi, Alex

Thank you for your comments
With this following fixes it seems running.


Thanks
Atsushi SAKAI

>On Wed, 2006-11-29 at 11:27 +0900, Atsushi SAKAI wrote:
>> Hi, Alex
>> 
>>   I am trying "ltrace ps" on IA64.
>> It makes dom0 hung.
>> 
>> >From the serial console messages,
>> (XEN) ia64_handle_break: bad ssc code 400000000001c480, 
>> iip=0x4000000000002140, 
>> b0=0x4000000000002380... spinning
>> 
>> It seems come from following system call.
>> 
>> ia64_ssc@xxxxxxxxxxxxxxxxxxx/arch/ia64/hp/sim/hpsim.S
>> 
>> 
>> Do you have any idea to solve this problem?
>
>   I'd guess you happened to hit a break value that overlaps with the
>ones chosen for trapping into ski.  You might try getting rid of the
>first test in handle_break() that calls do_ssc().
>
>       Alex
>
>-- 
>Alex Williamson                             HP Open Source & Linux Org.
>
>





Attachment: ltrace-fix.patch
Description: Binary data

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