Re: drm2, i915kms cause instant lock-up

2017-02-21 Thread Steve Kargl
On Tue, Feb 21, 2017 at 10:29:43PM -0800, Steve Kargl wrote: > On Wed, Feb 22, 2017 at 08:08:02AM +0200, Konstantin Belousov wrote: > > On Tue, Feb 21, 2017 at 09:32:42PM -0800, Steve Kargl wrote: > > > Well, I found the guilty commit. r313934 breaks loading > > > either i915kms.ko or drm2.ko on a

Re: drm2, i915kms cause instant lock-up

2017-02-21 Thread Steve Kargl
On Wed, Feb 22, 2017 at 08:08:02AM +0200, Konstantin Belousov wrote: > On Tue, Feb 21, 2017 at 09:32:42PM -0800, Steve Kargl wrote: > > Well, I found the guilty commit. r313934 breaks loading > > either i915kms.ko or drm2.ko on a Dell Latitude D530 laptop. > > details below. > > > > I'll also not

Re: drm2, i915kms cause instant lock-up

2017-02-21 Thread Konstantin Belousov
On Tue, Feb 21, 2017 at 09:32:42PM -0800, Steve Kargl wrote: > Well, I found the guilty commit. r313934 breaks loading > either i915kms.ko or drm2.ko on a Dell Latitude D530 laptop. > details below. > > I'll also note that starting at r313902 or so, after > loading i915kms.ko console output on v

Re: drm2, i915kms cause instant lock-up

2017-02-21 Thread Steve Kargl
On Tue, Feb 21, 2017 at 09:37:41PM -0800, Steve Kargl wrote: > On Wed, Feb 22, 2017 at 07:29:08AM +0200, Konstantin Belousov wrote: > > On Tue, Feb 21, 2017 at 10:55:11AM -0800, Steve Kargl wrote: > > > On Mon, Feb 20, 2017 at 09:26:58PM -0800, Steve Kargl wrote: > > > > > > > > Well, the good new

Re: drm2, i915kms cause instant lock-up

2017-02-21 Thread Steve Kargl
On Wed, Feb 22, 2017 at 07:29:08AM +0200, Konstantin Belousov wrote: > On Tue, Feb 21, 2017 at 10:55:11AM -0800, Steve Kargl wrote: > > On Mon, Feb 20, 2017 at 09:26:58PM -0800, Steve Kargl wrote: > > > > > > Well, the good news seems to be that r313254 and older are 'ok'. > > > So, something betw

Re: drm2, i915kms cause instant lock-up

2017-02-21 Thread Steve Kargl
Well, I found the guilty commit. r313934 breaks loading either i915kms.ko or drm2.ko on a Dell Latitude D530 laptop. details below. I'll also note that starting at r313902 or so, after loading i915kms.ko console output on vt is slooow. A simply 'time ls /usr/bin' reports 6.27 real, 4.00 user

Re: drm2, i915kms cause instant lock-up

2017-02-21 Thread Konstantin Belousov
On Tue, Feb 21, 2017 at 10:55:11AM -0800, Steve Kargl wrote: > On Mon, Feb 20, 2017 at 09:26:58PM -0800, Steve Kargl wrote: > > > > Well, the good news seems to be that r313254 and older are 'ok'. > > So, something between r313943 and r313254 is triggering a the > > problem. I'm still bisecting,

Re: drm2, i915kms cause instant lock-up

2017-02-21 Thread Steve Kargl
On Mon, Feb 20, 2017 at 09:26:58PM -0800, Steve Kargl wrote: > > Well, the good news seems to be that r313254 and older are 'ok'. > So, something between r313943 and r313254 is triggering a the > problem. I'm still bisecting, but it might take a day or two. > I've been able to narrow the range

Re: drm2, i915kms cause instant lock-up

2017-02-20 Thread Steve Kargl
On Tue, Feb 21, 2017 at 01:50:30AM +0100, Mateusz Guzik wrote: > On Mon, Feb 20, 2017 at 04:43:40PM -0800, Steve Kargl wrote: > > On Tue, Feb 21, 2017 at 12:58:07AM +0100, Mateusz Guzik wrote: > > > On Mon, Feb 20, 2017 at 03:52:24PM -0800, Steve Kargl wrote: > > > > With a kernel and world from r3

Re: drm2, i915kms cause instant lock-up

2017-02-20 Thread Mateusz Guzik
On Mon, Feb 20, 2017 at 04:43:40PM -0800, Steve Kargl wrote: > On Tue, Feb 21, 2017 at 12:58:07AM +0100, Mateusz Guzik wrote: > > On Mon, Feb 20, 2017 at 03:52:24PM -0800, Steve Kargl wrote: > > > With a kernel and world from r313943 sources (circa > > > Feb 19, 2017), kldload of either drm2.ko or

Re: drm2, i915kms cause instant lock-up

2017-02-20 Thread Steve Kargl
On Tue, Feb 21, 2017 at 12:58:07AM +0100, Mateusz Guzik wrote: > On Mon, Feb 20, 2017 at 03:52:24PM -0800, Steve Kargl wrote: > > With a kernel and world from r313943 sources (circa > > Feb 19, 2017), kldload of either drm2.ko or i915kms.ko > > will lock up the system. There is no keyboard respons

Re: drm2, i915kms cause instant lock-up

2017-02-20 Thread Steve Kargl
On Tue, Feb 21, 2017 at 12:58:07AM +0100, Mateusz Guzik wrote: > On Mon, Feb 20, 2017 at 03:52:24PM -0800, Steve Kargl wrote: > > With a kernel and world from r313943 sources (circa > > Feb 19, 2017), kldload of either drm2.ko or i915kms.ko > > will lock up the system. There is no keyboard respons

Re: drm2, i915kms cause instant lock-up

2017-02-20 Thread Mateusz Guzik
On Mon, Feb 20, 2017 at 03:52:24PM -0800, Steve Kargl wrote: > With a kernel and world from r313943 sources (circa > Feb 19, 2017), kldload of either drm2.ko or i915kms.ko > will lock up the system. There is no keyboard response, > screen output, or panic. Just a locked up system. > > A kernel f

drm2, i915kms cause instant lock-up

2017-02-20 Thread Steve Kargl
With a kernel and world from r313943 sources (circa Feb 19, 2017), kldload of either drm2.ko or i915kms.ko will lock up the system. There is no keyboard response, screen output, or panic. Just a locked up system. A kernel from r313027 and its modules boots fine. 'kldload drm2.ko' yields the foll