From: Oleg Nesterov <oleg@redhat.com>
To: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Andrew Morton <akpm@linux-foundation.org>,
Alan Stern <stern@rowland.harvard.edu>,
Ingo Molnar <mingo@elte.hu>,
Jan Kratochvil <jan.kratochvil@redhat.com>,
Prasad <prasad@linux.vnet.ibm.com>,
linux-kernel@vger.kernel.org
Subject: [PATCH 0/2] (Was: ptrace: PTRACE_DETACH should do flush_ptrace_hw_breakpoint(child))
Date: Tue, 30 Apr 2013 20:53:22 +0200 [thread overview]
Message-ID: <20130430185322.GA12389@redhat.com> (raw)
In-Reply-To: <20130430175138.GA30014@redhat.com>
On 04/30, Oleg Nesterov wrote:
>
> On 04/30, Frederic Weisbecker wrote:
> >
> > > Btw. perhaps flush_ptrace_hw_breakpoint() should also clear the
> > > virtual registers like thread.debugreg7 ? Even without this patch,
> > > flush_ is also called exec.
> >
> > Yeah makes sense.
>
> OK, and probably debugreg6 too, but I need to recheck.
Yes, looks like it should be cleared and we did this before.
And I think this change makes sense in this series, so could you
review this patch too?
Oleg.
next prev parent reply other threads:[~2013-04-30 18:56 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-04-18 18:43 [PATCH v2 0/6] ptrace/x86: hw_breakpoints fixes/cleanups Oleg Nesterov
2013-04-18 18:44 ` [PATCH 1/6] ptrace/x86: simplify the "disable" logic in ptrace_write_dr7() Oleg Nesterov
2013-04-18 18:44 ` [PATCH 2/6] ptrace/x86: dont delay "disable" till second pass " Oleg Nesterov
2013-04-18 18:44 ` [PATCH 3/6] ptrace/x86: introduce ptrace_register_breakpoint() Oleg Nesterov
2013-04-18 19:01 ` Oleg Nesterov
2013-04-29 15:56 ` Frederic Weisbecker
2013-04-18 18:44 ` [PATCH 4/6] ptrace/x86: ptrace_write_dr7() should create bp if !disabled Oleg Nesterov
2013-04-29 15:59 ` Frederic Weisbecker
2013-04-18 18:44 ` [PATCH 5/6] ptrace/x86: cleanup ptrace_set_debugreg() Oleg Nesterov
2013-04-29 16:00 ` Frederic Weisbecker
2013-04-18 18:44 ` [PATCH 6/6] ptrace: PTRACE_DETACH should do flush_ptrace_hw_breakpoint(child) Oleg Nesterov
2013-04-29 16:09 ` Frederic Weisbecker
2013-04-29 16:40 ` Oleg Nesterov
2013-04-29 23:36 ` Frederic Weisbecker
2013-04-30 17:51 ` Oleg Nesterov
2013-04-30 18:53 ` Oleg Nesterov [this message]
2013-04-30 18:53 ` [PATCH 1/2] ptrace/x86: flush_ptrace_hw_breakpoint() shoule clear the virtual debug registers Oleg Nesterov
2013-04-30 18:53 ` [PATCH 2/2] x86: kill TIF_DEBUG Oleg Nesterov
2013-04-29 23:37 ` [PATCH 6/6] ptrace: PTRACE_DETACH should do flush_ptrace_hw_breakpoint(child) Frederic Weisbecker
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