[Bug 109051] intel_idle.max_cstate=1 required on baytrail to prevent crashes

[Robert Small]

Just checked my microcode and stepping (given I seem to have one of the
most stable devices or only ever use it for things too boring to crash for)
and I have the same stepping/microcode as you.


Thanks,


*Robert Small*

On 21 February 2017 at 08:57, Paul Mansfield <paul at mansfield.co.uk> wrote:

>
> Everything points to the SD bus in combination with higher cstates being a
> major cause of instability.
>
> ---------- Forwarded message ----------
> From: <bugzilla-daemon at bugzilla.kernel.org>
> Date: 21 Feb 2017 08:07
> Subject: [Bug 109051] intel_idle.max_cstate=1 required on baytrail to
> prevent crashes
>
>
> https://bugzilla.kernel.org/show_bug.cgi?id=109051
>
> --- Comment #734 from Hans de Goede (jwrdegoede at fedoraproject.org) ---
> (In reply to Vincent Gerris from comment #732)
> >  - on battery power, using an external USB (rt2573) and the internal wifi
> > not connected, I could not trigger this
>
> But you were still using the internal bluetooth, right ?
>
> So this seems to point to a problem with the sdio wifi. I think this means
> we
> may still need the patches to force the CPU to not enter C4/C5 when mmc is
> active which have been used by various baytrail users in the past:
>
> https://github.com/hadess/rtl8723bs/tree/master/patches_4.5
>
> Some patches have been merged to fix this, but IIRC their commit msg
> mentioned
> those patches might just make it harder to trigger the problem.
>
> While working on some cherrytrail issues I rebased those patches to a
> recent
> upstream kernel (not the latest, but a recent one) I've saved those rebased
> patches in case we would need them again, I've uploaded them here:
>
> https://fedorapeople.org/~jwrdegoede/trail-mmc/
>
> It would be good to build a kernel with those and see if that fixes your
> reproducable bug.
>
> --
> You are receiving this mail because:
> You are on the CC list for the bug.
>
>
>
> _______________________________________________
> click mailing list
> click at tinc-vpn.org
> https://www.tinc-vpn.org/cgi-bin/mailman/listinfo/click
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://www.tinc-vpn.org/pipermail/click/attachments/20170221/ee1b7415/attachment.html>