Date: Wed, 30 Sep 1998 15:07:46 -0400 From: "=?iso-8859-1?Q?St=E9phane_E._Potvin?=" <sepotvin@videotron.ca> To: "Alexander Sanda" <entropy@compufit.at>, <current@FreeBSD.ORG> Subject: Re: Very strange thing happened today Message-ID: <003701bdeca5$9f94f3e0$a2e3edcd@assurancetourix.Galea.Com>
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I used to have the same problem on my scratch box
Pentium 166
Intel Advanced/EV motherboard
32 Mo ram (EDO)
3 IDE HD (2 IBM + 1 Quantum)
CD-ROM IDE (Philips)
It started happening after a couple of crash due to SU entry into the tree.
I wouldn't be able to finish any make world on the box. It kept dying on
different files (usually in the gcc part of the build) which were corrupted
the
way you described. I finally gave up and did a 'cat /dev/zero > /dev/wd*' on
all my drives. Now the box is happily running 3.0-beta+elf+su without any
glitch
doing buildworlds in a loop (I just want to see which one of the quantum or
the
IBM will survive longer :) I can't say for sure that the problem was not
fixed by some commit in the tree but I found convenient to place the blame
on
a corruption in the fs that wasn't caught by fsck.
-----Original Message-----
From: Alexander Sanda <entropy@compufit.at>
To: current@FreeBSD.ORG <current@FreeBSD.ORG>
Date: Wednesday, September 30, 1998 9:01 AM
Subject: Very strange thing happened today
>Ok, here is the deal:
>
>While making buildworld today (CVS'upped ca. 11am GMT), I got an error:
>
>/opt/src/src/gnu/lib/libobjc/../../../contrib/gcc/objc/list.h:142:
>parse error before `objc_list'
>
>Well, I checked the file list.h and found the following:
>
>(starts at line 139)
>
>/* Free list (backwards recursive) */
>
>static void
>list_frestruct objc_list* list)
>{
> if(list)
> {
> list_free(list->tail);
> free(list);
> }
>}
>
>Note that the function definition is wrong in some way :) I checked
>against the original file on ftp.freebsd.org and found out that the
>real line has to be:
>
>static void
>list_free(struct objc_list* list)
>
>Some_thing_ has stolen 2 characters from the function definition. Best
>of all, neither the filesize nor the timestamp have been changed
>(still 3521 bytes, 18 Sep 1996), _but_ 2 junk characters (0-bytes) have
>been added to the end of the file. I still have a copy of the altered
>file, so if somebody would be interested, I could mail him the header
>file.
>
>Ok, I'am a bit worried, what happened here ?
>Black magic, voodoo, aliens, cosmic rays ? :)
>
>Yes, this whole stuff sounds a bit unrealistic, but it's not a joke, it
>happened exactly this way.
>
>The problem is - of course I expected this - not reproduceable,
>and will probably never happen again, but I'am still a bit scared about
>it. I'am quite closely following -current (aka -BETA), and I'am
>building world at least once a week. However, I'am still a.out.
>Normally, I'am doing make -j16 (mainly, because it's a good stress test
>:) ) and - apart from "real" build failures due to wrong code - I never
>got strange or non-reproduceable build errors.
>
>I don't believe in bad hardware, because this box is running solid like
>a rock - I never get strange crashes, segfaults or something else, and
>I never saw a NT bluescreen on this box. But it could be a harddisk
>problem, right ?
>
>Hardware description (might be unimportant):
>
>Gigabyte GA6x86 Socket 8 mainboard, FX chipset, Pentium Pro/200 (512K),
>192 MB EDORAM (36bit Kingston SIMMs _with_ parity)
>
>/usr/src and /usr/obj are both on the same IDE drive (Fujitsu
>MPA3035ATU).
>
>--
># /AS/ http://privat.schlund.de/entropy/ #
># #
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