From: Andreas Schwab <schwab@linux-m68k.org>
To: Paul Mackerras <paulus@samba.org>
Cc: Oleg Nesterov <oleg@redhat.com>,
Veaceslav Falico <vfalico@redhat.com>,
Ananth N Mavinakayanahalli <ananth@in.ibm.com>,
Alexey Dobriyan <adobriyan@gmail.com>,
Christoph Hellwig <hch@infradead.org>,
"Frank Ch. Eigler" <fche@redhat.com>, Ingo Molnar <mingo@elte.hu>,
Peter Zijlstra <peterz@infradead.org>,
Roland McGrath <roland@redhat.com>,
linux-kernel@vger.kernel.org, utrace-devel@redhat.com,
Benjamin Herrenschmidt <benh@kernel.crashing.org>
Subject: Re: powerpc: fork && stepping (Was: [RFC,PATCH 0/14] utrace/ptrace)
Date: Thu, 26 Nov 2009 23:40:02 +0100 [thread overview]
Message-ID: <m28wdsykot.fsf@igel.home> (raw)
In-Reply-To: <19214.63688.860929.962005@cargo.ozlabs.ibm.com> (Paul Mackerras's message of "Fri, 27 Nov 2009 08:53:12 +1100")
Paul Mackerras <paulus@samba.org> writes:
> I believe gdb has code to recognize this kind of sequence and run
> through it without stopping until after the bne, precisely to avoid
> this problem.
See gdb/rs6000-tdep.c:ppc_deal_with_atomic_sequence.
Andreas.
--
Andreas Schwab, schwab@linux-m68k.org
GPG Key fingerprint = 58CA 54C7 6D53 942B 1756 01D3 44D5 214B 8276 4ED5
"And now for something completely different."
next prev parent reply other threads:[~2009-11-26 22:40 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-11-24 20:01 [RFC,PATCH 0/14] utrace/ptrace Oleg Nesterov
2009-11-25 8:03 ` Ananth N Mavinakayanahalli
2009-11-25 15:40 ` Oleg Nesterov
2009-11-26 7:53 ` Ananth N Mavinakayanahalli
2009-11-26 14:50 ` powerpc: fork && stepping (Was: [RFC,PATCH 0/14] utrace/ptrace) Oleg Nesterov
2009-11-26 17:25 ` Oleg Nesterov
2009-11-26 18:22 ` Veaceslav Falico
2009-11-26 20:23 ` Oleg Nesterov
2009-11-26 21:04 ` Oleg Nesterov
2009-11-26 21:53 ` Paul Mackerras
2009-11-26 22:37 ` Oleg Nesterov
2009-11-27 17:46 ` Veaceslav Falico
2009-11-28 7:30 ` Ananth N Mavinakayanahalli
2009-11-29 21:07 ` powerpc: syscall_dotrace() && retcode (Was: powerpc: fork && stepping) Oleg Nesterov
2009-11-29 23:15 ` Benjamin Herrenschmidt
2009-11-30 0:43 ` Benjamin Herrenschmidt
2009-11-30 20:00 ` Oleg Nesterov
2009-11-30 20:01 ` Oleg Nesterov
2009-12-01 19:27 ` Roland McGrath
2009-12-01 20:17 ` Benjamin Herrenschmidt
2009-11-26 22:40 ` Andreas Schwab [this message]
2009-11-27 5:39 ` powerpc: fork && stepping (Was: [RFC,PATCH 0/14] utrace/ptrace) Ananth N Mavinakayanahalli
2009-11-27 15:05 ` Oleg Nesterov
2009-11-28 7:06 ` Ananth N Mavinakayanahalli
2009-11-25 21:48 ` [RFC,PATCH 0/14] utrace/ptrace Christoph Hellwig
2009-11-25 22:28 ` Oleg Nesterov
2009-11-26 7:07 ` Srikar Dronamraju
2009-11-26 12:55 ` Peter Zijlstra
2009-11-26 9:10 ` Ingo Molnar
2009-11-26 10:47 ` Christoph Hellwig
2009-11-26 12:24 ` Ingo Molnar
2009-11-27 14:04 ` Christoph Hellwig
2009-11-27 14:17 ` Oleg Nesterov
2009-11-27 19:16 ` Ingo Molnar
2009-11-26 14:27 ` Oleg Nesterov
2009-12-02 0:46 ` Roland McGrath
2009-11-29 8:59 ` Pavel Machek
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