linux-kernel - Re: s390 && user_enable_single_step() (Was: odd utrace testing results on s390x)

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Date:	Fri,  8 Jan 2010 02:25:39 -0800 (PST)
From:	Roland McGrath <roland@...hat.com>
To:	Martin Schwidefsky <schwidefsky@...ibm.com>
Cc:	Oleg Nesterov <oleg@...hat.com>, caiqian@...hat.com,
	Heiko Carstens <heiko.carstens@...ibm.com>,
	Jan Kratochvil <jkratoch@...hat.com>,
	linux-kernel@...r.kernel.org, linux-s390@...r.kernel.org,
	utrace-devel@...hat.com
Subject: Re: s390 && user_enable_single_step() (Was: odd utrace testing
 results on s390x)

> 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
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