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From: Roland McGrath <roland@redhat.com>
Subject: Re: s390 && user_enable_single_step() (Was: odd utrace testing
 results on s390x)
In-Reply-To: Martin Schwidefsky's message of  Friday, 8 January 2010 09:30:25 +0100 <20100108093025.28ec0907@mschwide.boeblingen.de.ibm.com>
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Date: Fri,  8 Jan 2010 02:25:39 -0800 (PST)
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To: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Oleg Nesterov <oleg@redhat.com>, caiqian@redhat.com, Heiko Carstens <heiko.carstens@de.ibm.com>, Jan Kratochvil <jkratoch@redhat.com>, linux-kernel@vger.kernel.org, linux-s390@vger.kernel.org, utrace-devel@redhat.com
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> Ok, I changed the wording slightly:
> 
> Clear the TIF_SINGLE_STEP bit in copy_thread. The new process did not get
> a PER event of its own. It is wrong deliver a SIGTRAP that was meant for
> the parent process.

Very good!

Thanks,
Roland