From: Peter Zijlstra <peterz@infradead.org>
To: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: rostedt <rostedt@goodmis.org>,
Thomas Gleixner <tglx@linutronix.de>,
Ingo Molnar <mingo@kernel.org>,
linux-kernel@vger.kernel.org,
"Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
Subject: Re: [RFC][BUG] tracer: Fails to work
Date: Thu, 28 Jan 2016 16:29:57 +0100 [thread overview]
Message-ID: <20160128152957.GU6356@twins.programming.kicks-ass.net> (raw)
In-Reply-To: <1504204180.6731.1453992833257.JavaMail.zimbra@efficios.com>
On Thu, Jan 28, 2016 at 02:53:53PM +0000, Mathieu Desnoyers wrote:
> On x86, many BIOS wipe the memory content even after a warm reset :(
> The most reliable solution I found on x86 is to use kexec() to
> boot into a new kernel, mount the DAX filesystem again and read the
> buffers from there.
kexec() is tricky when the kernel is still prefectly fine, I doubt it'll
work when I've hosed it properly :/
next prev parent reply other threads:[~2016-01-28 15:30 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-01-28 8:08 [RFC][BUG] tracer: Fails to work Peter Zijlstra
2016-01-28 13:38 ` Mathieu Desnoyers
2016-01-28 13:57 ` Peter Zijlstra
2016-01-28 14:18 ` Steven Rostedt
2016-01-28 14:38 ` Mathieu Desnoyers
2016-01-28 14:47 ` Peter Zijlstra
2016-01-28 14:53 ` Mathieu Desnoyers
2016-01-28 15:29 ` Peter Zijlstra [this message]
2016-01-28 15:55 ` Steven Rostedt
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