Re: port-i386/52266: Double fault early in boot with Transmeta Crusoe CPU

["John D. Baker" <jdbaker%mylinuxisp.com@localhost>]

The following reply was made to PR port-i386/52266; it has been noted by GNATS.

From: "John D. Baker" <jdbaker%mylinuxisp.com@localhost>
To: gnats-bugs%NetBSD.org@localhost
Cc: 
Subject: Re: port-i386/52266: Double fault early in boot with Transmeta Crusoe
 CPU
Date: Sat, 8 Jul 2017 23:43:27 -0500 (CDT)

 On Sat, 8 Jul 2017, John D. Baker wrote:
 
 > I should be able to do a complete update and rebuild soon, just to
 > make sure.
 
 Fully updated with:
 
      $NetBSD: lapic.c,v 1.59 2017/07/08 14:35:33 nonaka Exp $
 
 the net4501 still panics early in the boot process (GENERIC kernel):
 
 > boot /netbsd.tst -s
 17775624+697548+846740 [821040+839258+13087]=0x14060e0
 fatal privileged instruction fault in supervisor mode
 trap type 0 code 0 eip 0xcfatal double fault in supervisor mode
 trap type 13 code 0xc0118298 eip 0x8 cs 0x246 eflags 0xc054cd46 cr2 0 ilevel 0x8 esp 0xc11f5760
 curlwp 0xc126a820 pid 0 lid 1 lowest kstack 0xc15772c0
 kernel: user trap double fault, code=0
 Stopped in pid 0.1 (system) at  8:      invalid address
 
 This time, instead of rebooting immediately, trying to get a backtrace
 produces:
 
 db{0}> bt
 panic: kernel diagnostic assertion "l->l_nopreempt > 0" failed: file "/x/current/src/sys/sys/lwp.h", line 513 
 fatal breakpoint trap in supervisor mode
 trap type 1 code 0 eip 0xc0118734 cs 0x8 eflags 0x246 cr2 0x1c ilevel 0x8 esp 0xc126aa08
 curlwp 0xc126a820 pid 733240715 lid 102 lowest kstack 0xc126ab10
 fatal page fault in supervisor modet    c0118734:       popl    %ebp
 
 after which it reboots.
 
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