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xen-ia64-devel

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

To: Atsushi SAKAI <sakaia@xxxxxxxxxxxxxx>
Subject: Re: [Xen-ia64-devel] [Q]ltrace and do_ssc
From: Isaku Yamahata <yamahata@xxxxxxxxxxxxx>
Date: Wed, 29 Nov 2006 11:58:44 +0900
Cc: xen-ia64-devel@xxxxxxxxxxxxxxxxxxx
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What immidate for break instruction does ltrace use?
Anyway, xen/ia64 should check privilege level before calling do_ssc().

On Wed, Nov 29, 2006 at 11:27:42AM +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?
> 
> 
> Thanks
> Atsushi SAKAI
> 
> 
> 
> 
> 
> 
> 
> 
> 
> _______________________________________________
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> 

-- 
yamahata

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