NVME Issues with Suspend

[Mike Lothian]

Hi

I managed to capture the dmesg by copying the dmesg and sync binaries
to a usb disk and executing and writing to there after the suspend

I hope this helps in some way and I'll happily raise a proper bug if
you tell me which product / component I should use for nvme

I also tried disabling IOMMU but that had no affect

Cheers

Mike

On 23 January 2016 at 17:02, Mike Lothian <mike at fireburn.co.uk> wrote:
> Hi
>
> I currently have a 3 partition NVME setup, however when I suspend and
> resume my laptop the drive isn't re-initialised correctly, the console
> is filled with access errors and I can't run any commands as they
> can't be found. After hard rebooting my machine sometimes it can't
> find the GPD partition and I have to use testdisk to restore the
> partition table
>
> I have an Alienware 15 laptop with a 1TB NVME harddisk running kernel
> 4.5-rc0. As I don't suspend my laptop often I'm not sure if this is a
> regression brought in from the merge window or an existing issue
>
> I can bisect if needed
>
> 3e:00.0 Non-Volatile memory controller [0108]: Samsung Electronics Co
> Ltd Device [144d:a802] (rev 01)
>        Subsystem: Samsung Electronics Co Ltd Device a801
>        Kernel driver in use: nvme
>
> [    1.050096]  nvme0n1: p1 p2 p3
>
> I was going to submit a bug on bugzilla.kernel.org but I wasn't sure
> which Product / Component it should be filed under
>
> I haven't figured out a good way of collecting logs when the system
> stops responding so please let me know if you know how I can collect
> logs - I don't think SSH sessions survive suspend / resume cycles
>
> Thanks
>
> Mike
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