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Re: kern/53311: boot netbsd -d panics

The following reply was made to PR kern/53311; it has been noted by GNATS.

From: Martin Husemann <>
Subject: Re: kern/53311: boot netbsd -d panics
Date: Thu, 24 May 2018 15:54:57 +0200

 On Thu, May 24, 2018 at 01:00:00PM +0000, wrote:
 > boot netbsd -d         panics, but no serial console on either machine
 >                        so don't know what
 For me it just hangs on one machine (bios console) and reboots
 with parts of a kernel panic on a machine with serial console:
 Press return to boot now, any other key for boot menu
 booting hd0a:netbsd - starting in 0 seconds.     
 > boot -d
 18225128+820032+1277120 [1036113+1149408+800069]=0x16d9828
 [   1.0000000] fatal breakpoint trap in supervisor mode
 [   1.0000000] trap type 1 code 0 rip 0xffffffff8021da75 cs 0x8 rflags 0x202 cr2 0 ilevel 0x8 rsp 0xffffffff818dfea0
 [   1.0000000] curlwp 0xffffffff81481f00 pid 0.1 lowest kstack 0xffffffff818db2c0
 (gdb) x/16i 0xffffffff8021da70
    0xffffffff8021da70 <breakpoint>:     push   %rbp
    0xffffffff8021da71 <breakpoint+1>:   mov    %rsp,%rbp
    0xffffffff8021da74 <breakpoint+4>:   int3   
    0xffffffff8021da75 <breakpoint+5>:   leaveq 
    0xffffffff8021da76 <breakpoint+6>:   retq   
    0xffffffff8021da77:  nop

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