NetBSD Problem Report #53270

From  Tue May  8 00:36:01 2018
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Date: Tue,  8 May 2018 02:35:40 +0200 (CEST)
Subject: PAE kernel crashes early
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>Number:         53270
>Category:       kern
>Synopsis:       PAE kernel crashes early
>Confidential:   no
>Severity:       critical
>Priority:       high
>Responsible:    kern-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Tue May 08 00:40:00 +0000 2018
>Last-Modified:  Tue May 08 03:40:01 +0000 2018
>Originator:     Michael van Elst
>Release:        NetBSD 8.0_RC1


System: NetBSD fud 8.0_RC1 NetBSD 8.0_RC1 (FUD) #1: Sun May 6 13:34:46 CEST 2018 mlelstv@gossam:/home/netbsd8/obj.i386/home/netbsd8/src/sys/arch/i386/compile/FUD i386
Architecture: i386
Machine: i386

Trying to boot a kernel with

options PAE

causes an immediate reset while the kernel is booting, the last message I could see before the screen went dark was at configuring ichsmb0.

The same kernel without PAE works fine.

cpu0: "Intel(R) Celeron(R) CPU  N3150  @ 1.60GHz"
cpu0: Intel Atom X[57]-Z8000 (Airmont) (686-class), 1600.25 MHz
cpu0: family 0x6 model 0x4c stepping 0x3 (id 0x406c3)
cpu0: features 0xbfebfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE>


Try to boot a PAE kernel.


From: Michael van Elst <>
Subject: Re: kern/53270 PAE kernel crashes early
Date: Tue, 8 May 2018 05:38:07 +0200

 After fixing an unrelated problem, the -current PAE kernel boots without
 a problem.

                                 Michael van Elst
                                 "A potential Snark may lurk in every tree."


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