Re: Revision 309657 to stack_machdep.c renders unbootable system

2016-12-19 Thread Steven G. Kargl
On Fri, Dec 16, 2016 at 03:19:09PM -0800, John Baldwin wrote: > > So the hack in pause() is probably not as necessary now. In particular, I > think we only need it for thread0, not for other threads. The patch below > worked for me with SPEW's config: > > Index: kern_synch.c > =

Re: Revision 309657 to stack_machdep.c renders unbootable system

2016-12-16 Thread Steven G. Kargl
On Fri, Dec 16, 2016 at 03:19:09PM -0800, John Baldwin wrote: > > So the hack in pause() is probably not as necessary now. In particular, I > think we only need it for thread0, not for other threads. The patch below > worked for me with SPEW's config: > > Index: kern_synch.c > =

Re: Revision 309657 to stack_machdep.c renders unbootable system

2016-12-16 Thread John Baldwin
On Wednesday, December 14, 2016 04:50:21 PM Mark Johnston wrote: > On Wed, Dec 14, 2016 at 03:48:04PM -0800, Steven G. Kargl wrote: > > On Wed, Dec 14, 2016 at 02:10:48PM -0800, Mark Johnston wrote: > > > On Wed, Dec 14, 2016 at 12:14:16PM -0800, Mark Johnston wrote: > > > > On Wed, Dec 14, 2016 at

Re: Revision 309657 to stack_machdep.c renders unbootable system

2016-12-14 Thread Steven G. Kargl
On Wed, Dec 14, 2016 at 04:50:21PM -0800, Mark Johnston wrote: > On Wed, Dec 14, 2016 at 03:48:04PM -0800, Steven G. Kargl wrote: > > On Wed, Dec 14, 2016 at 02:10:48PM -0800, Mark Johnston wrote: > > > On Wed, Dec 14, 2016 at 12:14:16PM -0800, Mark Johnston wrote: > > > > On Wed, Dec 14, 2016 at 1

Re: Revision 309657 to stack_machdep.c renders unbootable system

2016-12-14 Thread Steven G. Kargl
On Wed, Dec 14, 2016 at 02:10:48PM -0800, Mark Johnston wrote: > On Wed, Dec 14, 2016 at 12:14:16PM -0800, Mark Johnston wrote: > > On Wed, Dec 14, 2016 at 11:49:26AM -0800, Steven G. Kargl wrote: > > > Well, after 3 days of bisection, I finally found the commit > > > that renders my system unboota

Revision 309657 to stack_machdep.c renders unbootable system

2016-12-14 Thread Steven G. Kargl
Well, after 3 days of bisection, I finally found the commit that renders my system unbootable. The system does not panic. It simply gets stuck in some state. Nonfunctional keyboard, so can't break into debugger. No serial console available. The verbose dmesg.boot for a working kernel from revisi

Re: Revision 309657 to stack_machdep.c renders unbootable system

2016-12-14 Thread Mark Johnston
On Wed, Dec 14, 2016 at 03:48:04PM -0800, Steven G. Kargl wrote: > On Wed, Dec 14, 2016 at 02:10:48PM -0800, Mark Johnston wrote: > > On Wed, Dec 14, 2016 at 12:14:16PM -0800, Mark Johnston wrote: > > > On Wed, Dec 14, 2016 at 11:49:26AM -0800, Steven G. Kargl wrote: > > > > Well, after 3 days of b

Re: Revision 309657 to stack_machdep.c renders unbootable system

2016-12-14 Thread Mark Johnston
On Wed, Dec 14, 2016 at 12:14:16PM -0800, Mark Johnston wrote: > On Wed, Dec 14, 2016 at 11:49:26AM -0800, Steven G. Kargl wrote: > > Well, after 3 days of bisection, I finally found the commit > > that renders my system unbootable. The system does not panic. > > It simply gets stuck in some state

Re: Revision 309657 to stack_machdep.c renders unbootable system

2016-12-14 Thread Mark Johnston
On Wed, Dec 14, 2016 at 11:49:26AM -0800, Steven G. Kargl wrote: > Well, after 3 days of bisection, I finally found the commit > that renders my system unbootable. The system does not panic. > It simply gets stuck in some state. Nonfunctional keyboard, > so can't break into debugger. No serial c