Re: i1915drmkms system crash in NetBSD 7.0

[Rhialto]

On Sun 08 May 2016 at 19:12:14 +0200, Riccardo Mottola wrote:
> drm: GPU hangs can indicate a bug anywhere in the entire gfx stack,
> including userspace.

No doubt that message comes from Linux. I've always found it a very
worrying message. The whole idea of this kernel mode setting stuff was
to *prevent* userland bugs (or malicious programs) to affect the system
in a bad way. (If I've misunderstood that, the whole thing is even more
nonsensical than I already thought). But now you need the correct
graphics drivers in the kernel *and* in userland, whereas before you
only needed them in X. I don't see the progress. On the contrary.


-Olaf.
-- 
___ Olaf 'Rhialto' Seibert  -- The Doctor: No, 'eureka' is Greek for
\X/ rhialto/at/xs4all.nl-- 'this bath is too hot.'


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Re: i1915drmkms system crash in NetBSD 7.0

[Riccardo Mottola]

Hi,

Chuck Zmudzinski wrote:


I have a system with ASROCK B85M Pro4 Board and Intel Core i5-4590S 
processor which has Intel HD 4600 integrated graphics. I thought I 
would try booting NetBSD/amd64 7.0 on it, since I read on the web that 
NetBSD plans to support Intel integrated graphics up to Haswell in 
NetBSD 7.0.


it might be related, it might be not since I am using a different card 
but still the 915 driver.. but while running both 7.0 release and 
current, i get a message that an interrupt storm. WHile running a 
lock-debug kernel, the kernel crashes.


drm: GPU HANG: ecode -1:0x, reason: Command parser error, iir 
0x8010, action: continue
drm: GPU hangs can indicate a bug anywhere in the entire gfx stack, 
including userspace.

<...>
drm: HPD interrupt storm detected on connector DP-2: switching from 
hotplug detection to polling



have you seen something like this in your boot messages?

Riccardo