[clug] Looking for "Danger, Will Robinson" comment in source code

Kathy Reid kathy at kathyreid.id.au
Mon Jun 6 01:10:21 UTC 2022


I'll have to ... check it out

On 6/06/2022 10:56 am, Bob Edwards via linux wrote:
> Well done Luke!
>
> Ahhh CVS - those were the days...
>
> cheers,
> Bob Edwards.
>
> On 5/6/22 16:47, Luke Mewburn via linux wrote:
>> A quick grep through the NetBSD src tree found this from 1997:
>>     http://cvsweb.netbsd.org/bsdweb.cgi/src/sys/arch/sun3/sun3x/pmap.c?rev=1.1&content-type=text/x-cvsweb-markup&only_with_tag=MAIN 
>>
>>
>>
>>    2056  /* pmap_enter_kernel                    INTERNAL
>>    2057   **
>>    2058   * Map the given virtual address to the given physical 
>> address within the
>>    2059   * kernel address space.  This function exists because the 
>> kernel map does
>>    2060   * not do dynamic table allocation.  It consists of a 
>> contiguous array of ptes
>>    2061   * and can be edited directly without the need to walk 
>> through any tables.
>>    2062   *
>>    2063   * XXX: "Danger, Will Robinson!"
>>    2064   * Note that the kernel should never take a fault on any page
>>    2065   * between [ KERNBASE .. virtual_avail ] and this is checked in
>>    2066   * trap.c for kernel-mode MMU faults.  This means that mappings
>>    2067   * created in that range must be implicily wired. -gwr
>>    2068   */
>>    2069  void
>>    2070  pmap_enter_kernel(vaddr_t va, paddr_t pa, vm_prot_t prot)
>>
>>
>> There might be older occurrences; that was the first one I found.
>>
>>
>>
>> cheers,
>> Luke.
>>
>>
>> On 22-06-03 08:03, steve jenkin via linux wrote:
>>    | A friend said he’d heard a story that "Danger, Will Robinson”  
>> was buried in source code somewhere.
>>    |
>>    | went looking & failed to find a decent reference.
>>    |
>>    | Any clues?
>>    |
>>    | =================================
>>    |
>>    | For your amusement, things I found.
>>    |
>>    | =================================
>>    |
>>    | 500+ comments on Stackoverflow thread
>>    |
>>    | What is the best comment in source code you have ever encountered?
>>    | 
>> <https://stackoverflow.com/questions/184618/what-is-the-best-comment-in-source-code-you-have-ever-encountered>
>>    |
>>    | Same thread as a single page
>>    | WARNING: will attempt to print the page
>>    |
>>    | 
>> <http://www.stackprinter.com/questions/what-is-the-best-comment-in-source-code-you-have-ever-encountered.html>
>>    |
>>    | =================================
>>    |
>>    | man Syslogd
>>    |
>>    |     <https://linux.die.net/man/8/syslogd>
>>    |
>>    |     5.
>>    |
>>    |     Use step 4 and if the problem persists and is not secondary 
>> to a rogue program/daemon get a 3.5 ft (approx. 1 meter) length of 
>> sucker rod* and have a chat with the user in question.
>>    |
>>    |     Sucker rod def. - 3/4, 7/8 or 1in. hardened steel rod, male 
>> threaded on each end.
>>    |     Primary use in the oil industry in Western North Dakota and 
>> other locations to pump 'suck' oil from oil wells.
>>    |     Secondary uses are for the construction of cattle feed lots 
>> and for dealing with the occasional recalcitrant or belligerent 
>> individual.
>>    |
>>    | =================================
>>    |
>>    | Abba tribute in an easter egg.
>>    |
>>    | Why does man print "gimme gimme gimme" at 00:30?
>>    | 
>> <https://unix.stackexchange.com/questions/405783/why-does-man-print-gimme-gimme-gimme-at-0030>
>>    |
>>    | =================================
>>    |
>>    | History of:
>>    |
>>    |      "Whenever faced with a problem, some people say `Lets use 
>> _____.'
>>    |         Now, they have two problems.”
>>    |
>>    | creator:
>>    |     David Tilbrook
>>    |
>>    | <http://regex.info/blog/2006-09-15/247>
>>    |
>>    | =================================
>>    |
>>    |
>>    | --
>>    | Steve Jenkin, IT Systems and Design
>>    | 0412 786 915 (+61 412 786 915)
>>    | PO Box 38, Kippax ACT 2615, AUSTRALIA
>>    |
>>    | mailto:sjenkin at canb.auug.org.au http://members.tip.net.au/~sjenkin
>>    |
>>    |
>>    | --
>>    | linux mailing list
>>    | linux at lists.samba.org
>>    | https://lists.samba.org/mailman/listinfo/linux
>>
>
>



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