Confirmation; Severe ext2fs Corruption in 2.1.98

Phil's Kernel Account (kernel@eiterra.nls.net)
Thu, 28 May 1998 23:29:17 -0400 (EDT)


Okay, fsck is coming back clean for /dev/hdb2 (/home).

So everything should be okay, right?

[root@eiterra prj]#
-rw-r--r-- 1 prj prj 40097 Jan 26 17:00 303606.jpg
-rw-r--r-- 1 prj prj 241396 May 27 1994 CD_ORBIT.MOD
-rw-r--r-- 1 prj prj 4476928 Mar 18 21:01 DESCENT.MP3
-rw-r--r-- 1 prj prj 310 May 27 1994 FILE_ID.DIZ
drwxrwxr-x 2 prj prj 1024 Dec 25 16:41 Folder
drwx--x--x 2 prj prj 1024 May 12 20:22 Mail
-rw------- 1 prj prj 12481580 May 28 23:11 Mailbox
-rw-rw-r-- 1 prj prj 462635 Jan 23 21:43 PROBIOS.zip
-rw-rw-r-- 1 prj prj 1136 Mar 11 10:21 abc
-rwxrwxrwx 1 prj prj 928 Dec 29 14:50 beck
-rw-rw-rw- 1 prj prj 8182 Dec 29 13:43 beck.dat
-rw-rw-r-- 1 prj prj 793 Dec 30 16:55 beck.zip
-rw-r--r-- 1 prj prj 37918 Apr 28 22:30 bill.tar.gz
-rw-rw-r-- 1 prj prj 100440 Apr 28 22:30 bill.uue
-rw-rw-r-- 1 prj prj 100418 Apr 28 22:30 bill.uue~
-rw-r--r-- 1 prj prj 121767 Mar 18 23:24 blue_main.jpg
-rw-r--r-- 1 prj prj 343398 Jan 27 19:26 bt545c.pdf
-rw-r--r-- 1 prj prj 176198 May 27 1994 cd_axelf.mod
-rw-r--r-- 1 prj prj 132070 Jan 28 23:46 cd_axelf.zip
-rw-r--r-- 1 prj prj 177818 Jan 28 23:53 cd_orbit.zip
-rw-r--r-- 1 prj prj 71103 Jan 28 23:53 cd_softb.zip
-rw-r--r-- 1 prj prj 146333 Jan 28 23:54 cd_star.zip
-rw------- 1 prj prj 151552 Apr 19 00:34 core
-rw------- 1 prj prj 498 May 24 14:27 dead.letter
-rw-rw-r-- 1 prj prj 39093 Feb 9 16:16 eepro.c
-rwx------ 1 prj prj 38 Jan 4 05:18 efnet
-rwx------ 1 prj prj 46 Jan 4 05:18 efnet~
-rw-rw-r-- 1 prj prj 17377 Mar 16 18:08 f1kp148.zip
-rw-rw-r-- 1 prj prj 176577 May 7 17:45 fry.jpg
-rw-rw-r-- 1 prj prj 156257 May 15 18:57 fry.zip
-rw-r--r-- 1 prj prj 1609 Jan 18 01:24 gcc-exploit-2
yaddayadda.

[root@eiterra /home]# cd irc
[root@eiterra irc]# ls -l |more
total 3459689559
pr-xrws--x 1 25656 59020 0 Jan 1 1928 Econfig.0.1.tgz
c-----s--- 1 27348 24221 182, 170 Mar 19 2011 Papa_Byrd-Martian_
Raindance.mp3
p--x-wsrwt 1 18235 64772 0 Apr 6 2008
Papa_Byrd-Rhythm_Mach
ine.mp3
---------- 1 irc irc 22384 May 28 21:37 Snow-DCC.nfo
---------- 1 irc irc 1304137 May 28 21:55 TRACK15.MP3
---------- 1 irc irc 2135040 May 28 22:07 TRACK20.MP3
---------- 1 irc irc 1715931 May 28 21:44 TRACK21.MP3
pr-xrw---x 1 58627 42190 0 Mar 9 1985 bios.txt
srwS-wxr-T 1 7649 31114 528377816 Sep 21 1983 cmp3-1.0.tar.gz

b--x--srwT 1 15823 10446 160, 90 Feb 20 1964 config.status
---------- 1 irc irc 43 Jan 4 05:20 efnet
---------- 1 irc irc 38 Jan 4 05:19 efnet~
c--------- 1 14096 64415 92, 84 Nov 10 1916 gcrash
s--Srwxr-T 1 47986 23995 2456707101 Aug 25 1969 lib
d--------- 2 irc irc 1024 Feb 5 23:05 music
cr--r-x-wx 1 14123 51109 189, 219 Jul 22 1997 mycr0soft.txt
c--------- 1 23065 22116 48, 115 Sep 12 2023 nestea
brwx-wsr-t 1 38712 30171 140, 196 Dec 31 2023 nextamp.jpg
b--------- 1 11098 40230 28, 210 Jul 15 2017 nlm-of.c
crwS--Srwt 1 60076 34462 189, 180 Nov 9 1911 pclist.txt
crwSr-Sr-- 1 33420 46460 53, 200 Oct 25 2005 scdefs.h
d--------- 2 root root 1024 May 25 22:22 surreal
p--------- 1 27769 58132 0 Oct 19 1970 tpj_3.pl
sr-sr-srwt 1 65449 4624 3131569781 Nov 12 1980 trapped_on_the_i
nternet.mp3
sr-SrwS-wx 1 64255 8933 1978204031 Mar 24 1944 xanim

Guess what? Remember how I mentioned an unexpected, untraceable reboot
earlier?

This is the directory I was copying files from to the possibly corrupted
filesystem, which turned up to have NO errors.

The files that appear fine *ARE* fine. Why? I'm not sure. They were all
written *AFTER* the random reboot, and about 30 fscks between then and
now.

In short; this is a kernel bug. It is NOT pretty. I don't know WHAT causes
it. I can't even reproduce it. Which makes fixing it a LOT harder. If
*ANYBODY* has seen this, or can reproduce it, PLEASE *PLEASE* email me.
And if you've recovered *WITHOUT* backups (this directory was NOT included
in the last backup, by mistake), *PLEASE* share. Files are affected DURING
the bug, files written afterwards have NO problems. Directories are NOT
affected. Only files. And it can and WILL dive into directories.

[root@eiterra irc]# cd music
[root@eiterra music]# ls -l
total 2073366927
b--xrws-w- 1 64405 24535 226, 169 Nov 21 2030 jesus15.mod
prw---S--- 1 57134 20651 0 Oct 5 1994 nfaura.xm
s--s--xr-- 1 63406 55999 3972913578 Aug 22 2000 rtu.s3m

See? Fun, huh? HELP! ;P

-Phil R. Jaenke (kernel@nls.net / prj@nls.net)
TheGuyInCharge(tm), Ketyra Designs - We get paid to break stuff :)
Linux pkrea.ketyra.INT 2.0.33 #15 Sat Apr 18 00:40:21 EDT 1998 i586
Linux eiterra.nls.net 2.1.98 #15 Fri May 1 18:21:00 EDT 1998 i586
- Linus says for 'brave people only.' I say 'keep a backup.' - :)
! I reserve the right to bill spammers for my time and disk space !

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