t; Sent: Monday, October 27, 2014 2:48:09 PM
> Subject: Re: Progress on system crash traces with LTTng using DAX and pmem
>
> On Sat, Oct 25, 2014 at 12:51:25PM +, Mathieu Desnoyers wrote:
> > A quick follow up on my progress on using DAX and pmem with
> > LTTng. I've be
On Thu, 30 Oct, at 03:11:36PM, Mathieu Desnoyers wrote:
>
> Hi Kirill,
>
> This is a good point,
>
> There are a few more aspects to consider here:
>
> - Other architectures appear to have different guarantees, for
> instance ARM which, AFAIK, does not reset memory on soft
> reboot (well at
> Sent: Tuesday, October 28, 2014 6:54:58 AM
> Subject: Re: Progress on system crash traces with LTTng using DAX and pmem
>
> On Sat, Oct 25, 2014 at 12:51:25PM +, Mathieu Desnoyers wrote:
> > FYI, the main reason why my customer wants to go with a
> > "trace into
t; Sent: Monday, October 27, 2014 2:48:09 PM
> Subject: Re: Progress on system crash traces with LTTng using DAX and pmem
>
> On Sat, Oct 25, 2014 at 12:51:25PM +, Mathieu Desnoyers wrote:
> > A quick follow up on my progress on using DAX and pmem with
> > LTTng. I've be
On Sat, Oct 25, 2014 at 12:51:25PM +, Mathieu Desnoyers wrote:
> FYI, the main reason why my customer wants to go with a
> "trace into memory that survives soft reboot" approach
> rather than to use things like kexec/kdump is that they
> care about the amount of time it takes to reboot their
>
On Sat, Oct 25, 2014 at 12:51:25PM +, Mathieu Desnoyers wrote:
> A quick follow up on my progress on using DAX and pmem with
> LTTng. I've been able to successfully gather a user-space
> trace into buffers mmap'd into an ext4 filesystem within
> a pmem block device mounted with -o dax to bypass
Hi Matthew, Hi Ross,
A quick follow up on my progress on using DAX and pmem with
LTTng. I've been able to successfully gather a user-space
trace into buffers mmap'd into an ext4 filesystem within
a pmem block device mounted with -o dax to bypass the page
cache. After a soft reboot, I'm able to mou
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