Re: UVM crash in NetBSD/i386 PAE with 32 GB of RAM

2014-01-21 Thread Emmanuel Dreyfus
On Mon, Jan 20, 2014 at 04:18:38PM +, Emmanuel Dreyfus wrote: Changing memory fixed the problem. The machine now boots 6.0 i386 PAE with SMP enabled and 128 GB of RAM installed, and it seems to be stable. But I spoke too fast. It is stable, but the i386 PAE kernel does not sees more than 2

Re: UVM crash in NetBSD/i386 PAE with 32 GB of RAM

2014-01-21 Thread David Laight
On Tue, Jan 21, 2014 at 10:31:08AM +, Emmanuel Dreyfus wrote: On Mon, Jan 20, 2014 at 04:18:38PM +, Emmanuel Dreyfus wrote: Changing memory fixed the problem. The machine now boots 6.0 i386 PAE with SMP enabled and 128 GB of RAM installed, and it seems to be stable. But I spoke too

Re: UVM crash in NetBSD/i386 PAE with 32 GB of RAM

2014-01-21 Thread Christoph Egger
Am 21.01.14 20:54, schrieb David Laight: On Tue, Jan 21, 2014 at 10:31:08AM +, Emmanuel Dreyfus wrote: On Mon, Jan 20, 2014 at 04:18:38PM +, Emmanuel Dreyfus wrote: Changing memory fixed the problem. The machine now boots 6.0 i386 PAE with SMP enabled and 128 GB of RAM installed, and

Re: UVM crash in NetBSD/i386 PAE with 32 GB of RAM

2014-01-21 Thread Emmanuel Dreyfus
David Laight da...@l8s.co.uk wrote: It might be that having 128G has confused things somewhere. I got the same result with 64 GB. -- Emmanuel Dreyfus http://hcpnet.free.fr/pubz m...@netbsd.org

Re: UVM crash in NetBSD/i386 PAE with 32 GB of RAM

2014-01-21 Thread David Laight
On Tue, Jan 21, 2014 at 08:59:19PM +0100, Christoph Egger wrote: Am 21.01.14 20:54, schrieb David Laight: On Tue, Jan 21, 2014 at 10:31:08AM +, Emmanuel Dreyfus wrote: On Mon, Jan 20, 2014 at 04:18:38PM +, Emmanuel Dreyfus wrote: Changing memory fixed the problem. The machine now

Re: UVM crash in NetBSD/i386 PAE with 32 GB of RAM

2014-01-20 Thread Emmanuel Dreyfus
On Fri, Dec 13, 2013 at 11:27:40AM +, Emmanuel Dreyfus wrote: Following up on i386 PAE issues: the machine works fine with PAE and SMP disabled (boot -1) when it has 16 GB of RAM. Attempting to add more memory and reach 32 GB causes the unpleasant UVM crash shown below. Changing memory

Re: UVM crash in NetBSD/i386 PAE with 32 GB of RAM

2013-12-14 Thread Mouse
[...] i386 PAE is inferior to amd64 [...] The idea of i386 PAE if that if an i386 lacks some RAM, you can just drop a PAE kernel and add memory. Moving the system to amd64 is a bit more work. How well do amd64-capable and PAE-capable correlate? I already know, for exmaple, that way more

Re: UVM crash in NetBSD/i386 PAE with 32 GB of RAM

2013-12-14 Thread Manuel Bouyer
On Sat, Dec 14, 2013 at 03:27:04AM -0500, Mouse wrote: [...] i386 PAE is inferior to amd64 [...] The idea of i386 PAE if that if an i386 lacks some RAM, you can just drop a PAE kernel and add memory. Moving the system to amd64 is a bit more work. How well do amd64-capable and

UVM crash in NetBSD/i386 PAE with 32 GB of RAM

2013-12-13 Thread Emmanuel Dreyfus
Hi Following up on i386 PAE issues: the machine works fine with PAE and SMP disabled (boot -1) when it has 16 GB of RAM. Attempting to add more memory and reach 32 GB causes the unpleasant UVM crash shown below. Does it rings a bell for someone: panic: lock error cpu0: Begin traceback...

Re: UVM crash in NetBSD/i386 PAE with 32 GB of RAM

2013-12-13 Thread Martin Husemann
On Fri, Dec 13, 2013 at 01:16:08PM +, Emmanuel Dreyfus wrote: panic: lock error Can you try this with a LOCKDEBUG kernel? Martin

Re: UVM crash in NetBSD/i386 PAE with 32 GB of RAM

2013-12-13 Thread Mindaugas Rasiukevicius
Martin Husemann mar...@duskware.de wrote: On Fri, Dec 13, 2013 at 01:16:08PM +, Emmanuel Dreyfus wrote: panic: lock error Can you try this with a LOCKDEBUG kernel? Martin Will not help. This is a trap in x86 pmap, the locking error is just a side effect, not an issue in UVM. Quite

Re: UVM crash in NetBSD/i386 PAE with 32 GB of RAM

2013-12-13 Thread Emmanuel Dreyfus
Mindaugas Rasiukevicius rm...@netbsd.org wrote: If NetBSD ships PAE, we ought to fix its bugs, but generally - i386 PAE is inferior to amd64 in practically all aspects, so just do not use it if you can. The idea of i386 PAE if that if an i386 lacks some RAM, you can just drop a PAE kernel