* ext4: Funny characters appended to file names
@ 2020-12-04 14:30 Paul Menzel
2020-12-04 15:28 ` Theodore Y. Ts'o
2020-12-04 20:02 ` Andreas Dilger
0 siblings, 2 replies; 12+ messages in thread
From: Paul Menzel @ 2020-12-04 14:30 UTC (permalink / raw)
To: Theodore Ts'o, Andreas Dilger; +Cc: linux-ext4
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Dear Linux folks,
Using Debian Sid/unstable with 5.9.11 (5.9.0-4-686-pae), it looks like
the last `sudo grub-update` installed modules with corrupted file names.
`/boot` is mounted.
> $ findmnt /boot
> TARGET SOURCE FSTYPE OPTIONS
> /boot /dev/md0 ext4 rw,relatime
> $ ls -l /boot/grub/i386-pc/
> insgesamt 2085
> -rw-r--r-- 1 root root 8004 13. Aug 23:00 '915resolution.mod-'$'\205\300''u'$'\023\211''鍓]'$'\206\371\377\211\360\350''f'$'\376\377\377\205\300''ur'$'\203\354\004''V'$'\377''t$'$'\030''j'$'\002''胒'
> -rw-r--r-- 1 root root 10596 13. Aug 23:00 'acpi.mod-'$'\205\300''u'$'\023\211''鍓]'$'\206\371\377\211\360\350''f'$'\376\377\377\205\300''ur'$'\203\354\004''V'$'\377''t$'$'\030''j'$'\002''胒'
> […]
> $ file /boot/grub/i386-pc/zstd.mod-��u^S�鍓\]�����f���ur��^DVt\$^Xj^B胒
> /boot/grub/i386-pc/zstd.mod-��u�鍓]������f�����ur��V�t$j胒: ELF 32-bit LSB relocatable, Intel 80386, version 1 (SYSV), not stripped
Checking the file system returned no errors.
$ sudo umount /boot
$ sudo fsck.ext4 /dev/md0
e2fsck 1.45.6 (20-Mar-2020)
boot: sauber, 331/124928 Dateien, 145680/497856 Blöcke
This causes GRUB fail to load the module, and it falls back into rescue
mode.
Any idea, what might have happened. It’s a degraded RAID, and I only use
one drive since several years, but never deactivated it, and `/dev/md0`
still shows up.
```
$ more /proc/mdstat
Personalities : [raid1] [linear] [multipath] [raid0] [raid6] [raid5]
[raid4] [raid10]
md0 : active raid1 sdb1[0]
497856 blocks [2/1] [U_]
md1 : active raid1 sdb2[0]
1953013952 blocks [2/1] [U_]
unused devices: <none>
```
Kind regards,
Paul
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insgesamt 2085
-rw-r--r-- 1 root root 8004 13. Aug 23:00 915resolution.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 10596 13. Aug 23:00 acpi.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 1260 13. Aug 23:00 adler32.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 5624 13. Aug 23:00 affs.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 6140 13. Aug 23:00 afs.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 15536 13. Aug 23:00 ahci.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 492 13. Aug 23:00 all_video.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 1036 13. Aug 23:00 aout.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 2940 13. Aug 23:00 archelp.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 5540 13. Aug 23:00 ata.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 4180 13. Aug 23:00 at_keyboard.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 1624 13. Aug 23:00 backtrace.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 6816 13. Aug 23:00 bfs.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 4700 13. Aug 23:00 biosdisk.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 2352 13. Aug 23:00 bitmap.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 3748 13. Aug 23:00 bitmap_scale.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 2028 13. Aug 23:00 blocklist.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 512 13. Aug 23:00 boot.img-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 2408 13. Aug 23:00 boot.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 30576 13. Aug 23:00 bsd.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 2340 13. Aug 23:00 bswap_test.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 18648 13. Aug 23:00 btrfs.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 2108 13. Aug 23:00 bufio.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 2948 13. Aug 23:00 cat.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 4032 13. Aug 23:00 cbfs.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 3404 13. Aug 23:00 cbls.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 2496 13. Aug 23:00 cbmemc.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 1128 13. Aug 23:00 cbtable.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 2860 13. Aug 23:00 cbtime.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 3464 13. Aug 23:00 chain.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 3040 13. Aug 23:00 cmdline_cat_test.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 1212 13. Aug 23:00 cmosdump.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 1864 13. Aug 23:00 cmostest.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 1996 13. Aug 23:00 cmp.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 4656 13. Aug 23:00 cmp_test.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 3871 13. Aug 23:00 command.lst-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 2264 13. Aug 23:00 configfile.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 30893 13. Aug 23:00 core.img-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 2776 13. Aug 23:00 cpio_be.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 2708 13. Aug 23:00 cpio.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 1728 13. Aug 23:00 cpuid.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 1636 13. Aug 23:00 crc64.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 10052 13. Aug 23:00 cryptodisk.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 936 13. Aug 23:00 crypto.lst-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 4988 13. Aug 23:00 crypto.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 3640 13. Aug 23:00 cs5536.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 1820 13. Aug 23:00 ctz_test.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 1788 13. Aug 23:00 datehook.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 2220 13. Aug 23:00 date.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 1248 13. Aug 23:00 datetime.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 9964 13. Aug 23:00 diskfilter.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 2396 13. Aug 23:00 disk.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 1028 13. Aug 23:00 div.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 5608 13. Aug 23:00 div_test.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 1884 13. Aug 23:00 dm_nv.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 5380 13. Aug 23:00 drivemap.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 1960 13. Aug 23:00 echo.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 7632 13. Aug 23:00 efiemu32.o-…À\x0f„wÿÿÿ‰é“w†ùÿ‰ðèÊýÿÿ…À\x0f„`ÿÿÿéÝþÿÿt
-rw-r--r-- 1 root root 9960 13. Aug 23:00 efiemu64.o-…À\x0f„`ÿÿÿéÝþÿÿt
-rw-r--r-- 1 root root 24040 13. Aug 23:00 efiemu.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 16232 13. Aug 23:00 ehci.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 4112 13. Aug 23:00 elf.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 1436 13. Aug 23:00 eval.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 5328 13. Aug 23:00 exfat.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 1460 13. Aug 23:00 exfctest.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 6284 13. Aug 23:00 ext2.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 4664 13. Aug 23:00 extcmd.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 6324 13. Aug 23:00 f2fs.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 5504 13. Aug 23:00 fat.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 17124 13. Aug 23:00 file.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 13216 13. Aug 23:00 font.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 2652 13. Aug 23:00 freedos.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 2980 13. Aug 23:00 fshelp.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 219 13. Aug 23:00 fs.lst-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 34472 13. Aug 23:00 functional_test.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 1644 13. Aug 23:00 gcry_arcfour.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 8128 13. Aug 23:00 gcry_blowfish.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 33404 13. Aug 23:00 gcry_camellia.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 16388 13. Aug 23:00 gcry_cast5.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 10644 13. Aug 23:00 gcry_crc.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 19184 13. Aug 23:00 gcry_des.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 2284 13. Aug 23:00 gcry_dsa.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 2980 13. Aug 23:00 gcry_idea.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 3144 13. Aug 23:00 gcry_md4.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 3764 13. Aug 23:00 gcry_md5.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 2428 13. Aug 23:00 gcry_rfc2268.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 19424 13. Aug 23:00 gcry_rijndael.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 8216 13. Aug 23:00 gcry_rmd160.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 2072 13. Aug 23:00 gcry_rsa.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 15224 13. Aug 23:00 gcry_seed.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 17044 13. Aug 23:00 gcry_serpent.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 7952 13. Aug 23:00 gcry_sha1.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 4312 13. Aug 23:00 gcry_sha256.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 8932 13. Aug 23:00 gcry_sha512.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 12276 13. Aug 23:00 gcry_tiger.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 36872 13. Aug 23:00 gcry_twofish.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 24860 13. Aug 23:00 gcry_whirlpool.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 25200 13. Aug 23:00 gdb.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 6016 13. Aug 23:00 geli.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 4940 13. Aug 23:00 gettext.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 39084 13. Aug 23:00 gfxmenu.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 2892 13. Aug 23:00 gfxterm_background.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 4992 13. Aug 23:00 gfxterm_menu.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 9964 13. Aug 23:00 gfxterm.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 3800 13. Aug 23:00 gptsync.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 8616 13. Aug 23:00 gzio.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 4716 13. Aug 23:00 halt.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 5232 13. Aug 23:00 hashsum.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 6600 13. Aug 23:00 hdparm.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 1204 13. Aug 23:00 hello.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 2564 13. Aug 23:00 help.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 3168 13. Aug 23:00 hexdump.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 7004 13. Aug 23:00 hfs.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 3040 13. Aug 23:00 hfspluscomp.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 7848 13. Aug 23:00 hfsplus.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 5724 13. Aug 23:00 http.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 2524 13. Aug 23:00 hwmatch.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 2828 13. Aug 23:00 iorw.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 8632 13. Aug 23:00 iso9660.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 6032 13. Aug 23:00 jfs.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 6536 13. Aug 23:00 jpeg.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 5008 13. Aug 23:00 keylayouts.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 1976 13. Aug 23:00 keystatus.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 6576 13. Aug 23:00 ldm.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 30188 13. Aug 23:00 legacycfg.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 14468 13. Aug 23:00 legacy_password_test.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 5632 13. Aug 23:00 linux16.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 13348 13. Aug 23:00 linux.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 5780 13. Aug 23:00 loadenv.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 2988 13. Aug 23:00 loopback.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 4804 13. Aug 23:00 lsacpi.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 2276 13. Aug 23:00 lsapm.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 1868 13. Aug 23:00 lsmmap.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 3912 13. Aug 23:00 ls.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 4860 13. Aug 23:00 lspci.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 6964 13. Aug 23:00 luks.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 6896 13. Aug 23:00 lvm.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 5024 13. Aug 23:00 lzopio.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 3280 13. Aug 23:00 macbless.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 7516 13. Aug 23:00 macho.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 2044 13. Aug 23:00 mda_text.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 2020 13. Aug 23:00 mdraid09_be.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 1944 13. Aug 23:00 mdraid09.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 1944 13. Aug 23:00 mdraid1x.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 2020 13. Aug 23:00 memdisk.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 2852 13. Aug 23:00 memrw.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 3456 13. Aug 23:00 minicmd.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 3848 13. Aug 23:00 minix2_be.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 3684 13. Aug 23:00 minix2.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 3816 13. Aug 23:00 minix3_be.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 3684 13. Aug 23:00 minix3.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 3748 13. Aug 23:00 minix_be.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 3620 13. Aug 23:00 minix.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 8564 13. Aug 23:00 mmap.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 5590 13. Aug 23:00 moddep.lst-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 2503 13. Aug 23:00 modinfo.sh-…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 2396 13. Aug 23:00 morse.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 27536 13. Aug 23:00 mpi.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 2460 13. Aug 23:00 msdospart.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 2032 13. Aug 23:00 mul_test.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 15332 13. Aug 23:00 multiboot2.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 14120 13. Aug 23:00 multiboot.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 4476 13. Aug 23:00 nativedisk.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 55996 13. Aug 23:00 net.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 2932 13. Aug 23:00 newc.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 6612 13. Aug 23:00 nilfs2.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 115736 13. Aug 23:00 normal.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 4352 13. Aug 23:00 ntfscomp.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 9988 13. Aug 23:00 ntfs.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 2552 13. Aug 23:00 ntldr.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 2772 13. Aug 23:00 odc.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 1504 13. Aug 23:00 offsetio.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 10404 13. Aug 23:00 ohci.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 1648 13. Aug 23:00 part_acorn.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 1868 13. Aug 23:00 part_amiga.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 2116 13. Aug 23:00 part_apple.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 2760 13. Aug 23:00 part_bsd.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 1756 13. Aug 23:00 part_dfly.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 1484 13. Aug 23:00 part_dvh.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 2400 13. Aug 23:00 part_gpt.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 111 13. Aug 23:00 partmap.lst-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 2328 13. Aug 23:00 part_msdos.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 1804 13. Aug 23:00 part_plan.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 1524 13. Aug 23:00 part_sun.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 1628 13. Aug 23:00 part_sunpc.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 17 13. Aug 23:00 parttool.lst-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 4724 13. Aug 23:00 parttool.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 1892 13. Aug 23:00 password.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 2796 13. Aug 23:00 password_pbkdf2.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 4772 13. Aug 23:00 pata.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 1468 13. Aug 23:00 pbkdf2.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 2180 13. Aug 23:00 pbkdf2_test.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 2480 13. Aug 23:00 pcidump.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 1392 13. Aug 23:00 pci.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 11416 13. Aug 23:00 pgp.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 6348 13. Aug 23:00 plan9.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 2504 13. Aug 23:00 play.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 7616 13. Aug 23:00 png.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 1588 13. Aug 23:00 priority_queue.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 2668 13. Aug 23:00 probe.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 2348 13. Aug 23:00 procfs.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 2200 13. Aug 23:00 progress.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 2664 13. Aug 23:00 pxechain.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 3808 13. Aug 23:00 pxe.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 1356 13. Aug 23:00 raid5rec.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 2268 13. Aug 23:00 raid6rec.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 2816 13. Aug 23:00 random.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 1912 13. Aug 23:00 rdmsr.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 1452 13. Aug 23:00 read.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 1700 13. Aug 23:00 reboot.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 51176 13. Aug 23:00 regexp.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 8804 13. Aug 23:00 reiserfs.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 14984 13. Aug 23:00 relocator.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 4284 13. Aug 23:00 romfs.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 4692 13. Aug 23:00 scsi.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 3124 13. Aug 23:00 search_fs_file.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 3192 13. Aug 23:00 search_fs_uuid.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 3124 13. Aug 23:00 search_label.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 3688 13. Aug 23:00 search.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 7108 13. Aug 23:00 sendkey.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 7864 13. Aug 23:00 serial.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 708 13. Aug 23:00 setjmp.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 1692 13. Aug 23:00 setjmp_test.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 5308 13. Aug 23:00 setpci.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 5228 13. Aug 23:00 sfs.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 2444 13. Aug 23:00 shift_test.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 6444 13. Aug 23:00 signature_test.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 2276 13. Aug 23:00 sleep.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 2300 13. Aug 23:00 sleep_test.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 2088 13. Aug 23:00 spkmodem.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 7196 13. Aug 23:00 squash4.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 2204 13. Aug 23:00 strtoull_test.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 17412 13. Aug 23:00 syslinuxcfg.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 3312 13. Aug 23:00 tar.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 202 13. Aug 23:00 terminal.lst-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 4480 13. Aug 23:00 terminal.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 12588 13. Aug 23:00 terminfo.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 1336 13. Aug 23:00 test_blockarg.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 2704 13. Aug 23:00 testload.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 5016 13. Aug 23:00 test.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 2328 13. Aug 23:00 testspeed.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 4976 13. Aug 23:00 tftp.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 4660 13. Aug 23:00 tga.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 1504 13. Aug 23:00 time.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 1764 13. Aug 23:00 trig.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 2400 13. Aug 23:00 tr.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 3620 13. Aug 23:00 truecrypt.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 1200 13. Aug 23:00 true.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 8572 13. Aug 23:00 udf.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 5796 13. Aug 23:00 ufs1_be.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 5412 13. Aug 23:00 ufs1.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 5444 13. Aug 23:00 ufs2.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 6620 13. Aug 23:00 uhci.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 3964 13. Aug 23:00 usb_keyboard.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 10592 13. Aug 23:00 usb.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 6960 13. Aug 23:00 usbms.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 2000 13. Aug 23:00 usbserial_common.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 2360 13. Aug 23:00 usbserial_ftdi.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 2692 13. Aug 23:00 usbserial_pl2303.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 1524 13. Aug 23:00 usbserial_usbdebug.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 3600 13. Aug 23:00 usbtest.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 9836 13. Aug 23:00 vbe.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 2428 13. Aug 23:00 verifiers.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 5044 13. Aug 23:00 vga.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 2172 13. Aug 23:00 vga_text.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 5636 13. Aug 23:00 video_bochs.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 6052 13. Aug 23:00 video_cirrus.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 5648 13. Aug 23:00 video_colors.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 20936 13. Aug 23:00 video_fb.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 3980 13. Aug 23:00 videoinfo.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 33 13. Aug 23:00 video.lst-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 6024 13. Aug 23:00 video.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 2368 13. Aug 23:00 videotest_checksum.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 4288 13. Aug 23:00 videotest.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 1496 13. Aug 23:00 wrmsr.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 7400 13. Aug 23:00 xfs.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 27440 13. Aug 23:00 xnu.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 2132 13. Aug 23:00 xnu_uuid.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 2004 13. Aug 23:00 xnu_uuid_test.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 15552 13. Aug 23:00 xzio.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 5552 13. Aug 23:00 zfscrypt.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 6604 13. Aug 23:00 zfsinfo.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 40112 13. Aug 23:00 zfs.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
-rw-r--r-- 1 root root 45708 13. Aug 23:00 zstd.mod-…Àu\x13‰é“]†ùÿ‰ðèfþÿÿ…Àurƒì\x04Vÿt$\x18j\x02胒
TARGET SOURCE FSTYPE OPTIONS
/boot /dev/md0 ext4 rw,relatime
^ permalink raw reply [flat|nested] 12+ messages in thread
* Re: ext4: Funny characters appended to file names
2020-12-04 14:30 ext4: Funny characters appended to file names Paul Menzel
@ 2020-12-04 15:28 ` Theodore Y. Ts'o
2020-12-04 15:39 ` Paul Menzel
2020-12-04 20:02 ` Andreas Dilger
1 sibling, 1 reply; 12+ messages in thread
From: Theodore Y. Ts'o @ 2020-12-04 15:28 UTC (permalink / raw)
To: Paul Menzel; +Cc: Andreas Dilger, linux-ext4
On Fri, Dec 04, 2020 at 03:30:38PM +0100, Paul Menzel wrote:
> Dear Linux folks,
>
>
> Using Debian Sid/unstable with 5.9.11 (5.9.0-4-686-pae), it looks like the
> last `sudo grub-update` installed modules with corrupted file names. `/boot`
> is mounted.
>
> > $ findmnt /boot
> > TARGET SOURCE FSTYPE OPTIONS
> > /boot /dev/md0 ext4 rw,relatime
> > $ ls -l /boot/grub/i386-pc/
> > insgesamt 2085
> > -rw-r--r-- 1 root root 8004 13. Aug 23:00 '915resolution.mod-'$'\205\300''u'$'\023\211''鍓]'$'\206\371\377\211\360\350''f'$'\376\377\377\205\300''ur'$'\203\354\004''V'$'\377''t$'$'\030''j'$'\002''胒'
> > -rw-r--r-- 1 root root 10596 13. Aug 23:00 'acpi.mod-'$'\205\300''u'$'\023\211''鍓]'$'\206\371\377\211\360\350''f'$'\376\377\377\205\300''ur'$'\203\354\004''V'$'\377''t$'$'\030''j'$'\002''胒'
> > […]
> > $ file /boot/grub/i386-pc/zstd.mod-��u^S�鍓\]�����f���ur��^DVt\$^Xj^B胒
> > /boot/grub/i386-pc/zstd.mod-��u�鍓]������f�����ur��V�t$j胒: ELF 32-bit
> > LSB relocatable, Intel 80386, version 1 (SYSV), not stripped
>
> Checking the file system returned no errors.
>
> $ sudo umount /boot
> $ sudo fsck.ext4 /dev/md0
> e2fsck 1.45.6 (20-Mar-2020)
> boot: sauber, 331/124928 Dateien, 145680/497856 Blöcke
Try forcing a full fsck:
sudo fsck.ext4 -f /dev/md0
You'll see that it takes rather longer to run....
- Ted
^ permalink raw reply [flat|nested] 12+ messages in thread
* Re: ext4: Funny characters appended to file names
2020-12-04 15:28 ` Theodore Y. Ts'o
@ 2020-12-04 15:39 ` Paul Menzel
2020-12-04 18:05 ` Theodore Y. Ts'o
0 siblings, 1 reply; 12+ messages in thread
From: Paul Menzel @ 2020-12-04 15:39 UTC (permalink / raw)
To: Theodore Y. Ts'o; +Cc: Andreas Dilger, linux-ext4
Dear Theodore,
Am 04.12.20 um 16:28 schrieb Theodore Y. Ts'o:
> On Fri, Dec 04, 2020 at 03:30:38PM +0100, Paul Menzel wrote:
>> Using Debian Sid/unstable with 5.9.11 (5.9.0-4-686-pae), it looks like the
>> last `sudo grub-update` installed modules with corrupted file names. `/boot`
>> is mounted.
>>
>>> $ findmnt /boot
>>> TARGET SOURCE FSTYPE OPTIONS
>>> /boot /dev/md0 ext4 rw,relatime
>>> $ ls -l /boot/grub/i386-pc/
>>> insgesamt 2085
>>> -rw-r--r-- 1 root root 8004 13. Aug 23:00 '915resolution.mod-'$'\205\300''u'$'\023\211''鍓]'$'\206\371\377\211\360\350''f'$'\376\377\377\205\300''ur'$'\203\354\004''V'$'\377''t$'$'\030''j'$'\002''胒'
>>> -rw-r--r-- 1 root root 10596 13. Aug 23:00 'acpi.mod-'$'\205\300''u'$'\023\211''鍓]'$'\206\371\377\211\360\350''f'$'\376\377\377\205\300''ur'$'\203\354\004''V'$'\377''t$'$'\030''j'$'\002''胒'
>>> […]
>>> $ file /boot/grub/i386-pc/zstd.mod-��u^S�鍓\]�����f���ur��^DVt\$^Xj^B胒
>>> /boot/grub/i386-pc/zstd.mod-��u�鍓]������f�����ur��V�t$j胒: ELF 32-bit
>>> LSB relocatable, Intel 80386, version 1 (SYSV), not stripped
>>
>> Checking the file system returned no errors.
>>
>> $ sudo umount /boot
>> $ sudo fsck.ext4 /dev/md0
>> e2fsck 1.45.6 (20-Mar-2020)
>> boot: sauber, 331/124928 Dateien, 145680/497856 Blöcke
>
> Try forcing a full fsck:
>
> sudo fsck.ext4 -f /dev/md0
>
> You'll see that it takes rather longer to run....
Only two or three seconds on this system. (It’s only 486,2M.)
> $ sudo LANG=C fsck.ext4 -f /dev/md0
> e2fsck 1.45.6 (20-Mar-2020)
> Pass 1: Checking inodes, blocks, and sizes
> Pass 2: Checking directory structure
> Pass 3: Checking directory connectivity
> Pass 4: Checking reference counts
> Pass 5: Checking group summary information
> boot: 327/124928 files (17.7% non-contiguous), 126021/497856 blocks
I can’t remember if that was an Ext2 or Ext3 when created several years ago.
Kind regards,
Paul
^ permalink raw reply [flat|nested] 12+ messages in thread
* Re: ext4: Funny characters appended to file names
2020-12-04 15:39 ` Paul Menzel
@ 2020-12-04 18:05 ` Theodore Y. Ts'o
2020-12-05 19:34 ` Paul Menzel
0 siblings, 1 reply; 12+ messages in thread
From: Theodore Y. Ts'o @ 2020-12-04 18:05 UTC (permalink / raw)
To: Paul Menzel; +Cc: Andreas Dilger, linux-ext4
On Fri, Dec 04, 2020 at 04:39:12PM +0100, Paul Menzel wrote:
>
> > $ sudo LANG=C fsck.ext4 -f /dev/md0
> > e2fsck 1.45.6 (20-Mar-2020)
> > Pass 1: Checking inodes, blocks, and sizes
> > Pass 2: Checking directory structure
> > Pass 3: Checking directory connectivity
> > Pass 4: Checking reference counts
> > Pass 5: Checking group summary information
> > boot: 327/124928 files (17.7% non-contiguous), 126021/497856 blocks
>
> I can’t remember if that was an Ext2 or Ext3 when created several years ago.
Well, the output dumpe2fs will tell us an awful lot about the file
system.
Whe was the last time the directory was OK? Do you know when it may
have gotten corrupted?
- Ted
^ permalink raw reply [flat|nested] 12+ messages in thread
* Re: ext4: Funny characters appended to file names
2020-12-04 14:30 ext4: Funny characters appended to file names Paul Menzel
2020-12-04 15:28 ` Theodore Y. Ts'o
@ 2020-12-04 20:02 ` Andreas Dilger
1 sibling, 0 replies; 12+ messages in thread
From: Andreas Dilger @ 2020-12-04 20:02 UTC (permalink / raw)
To: Paul Menzel; +Cc: Theodore Ts'o, Ext4 Developers List
[-- Attachment #1: Type: text/plain, Size: 2080 bytes --]
On Dec 4, 2020, at 7:30 AM, Paul Menzel <pmenzel@molgen.mpg.de> wrote:
>
> Using Debian Sid/unstable with 5.9.11 (5.9.0-4-686-pae), it looks like the last `sudo grub-update` installed modules with corrupted file names. `/boot` is mounted.
>
>> $ findmnt /boot
>> TARGET SOURCE FSTYPE OPTIONS
>> /boot /dev/md0 ext4 rw,relatime
>> $ ls -l /boot/grub/i386-pc/
>> insgesamt 2085
>> -rw-r--r-- 1 root root 8004 13. Aug 23:00 '915resolution.mod-'$'\205\300''u'$'\023\211''鍓]'$'\206\371\377\211\360\350''f'$'\376\377\377\205\300''ur'$'\203\354\004''V'$'\377''t$'$'\030''j'$'\002''胒'
>> -rw-r--r-- 1 root root 10596 13. Aug 23:00 'acpi.mod-'$'\205\300''u'$'\023\211''鍓]'$'\206\371\377\211\360\350''f'$'\376\377\377\205\300''ur'$'\203\354\004''V'$'\377''t$'$'\030''j'$'\002''胒'
>> […]
>> $ file /boot/grub/i386-pc/zstd.mod-��u^S�鍓\]�����f���ur��^DVt\$^Xj^B胒 /boot/grub/i386-pc/zstd.mod-��u�鍓]������f�����ur��V�t$j胒: ELF 32-bit LSB relocatable, Intel 80386, version 1 (SYSV), not stripped
>
> Checking the file system returned no errors.
>
> $ sudo umount /boot
> $ sudo fsck.ext4 /dev/md0
> e2fsck 1.45.6 (20-Mar-2020)
> boot: sauber, 331/124928 Dateien, 145680/497856 Blöcke
>
> This causes GRUB fail to load the module, and it falls back into rescue mode.
>
> Any idea, what might have happened. It’s a degraded RAID, and I only use one drive since several years, but never deactivated it, and `/dev/md0` still shows up.
>
> ```
> $ more /proc/mdstat
> Personalities : [raid1] [linear] [multipath] [raid0] [raid6] [raid5] [raid4] [raid10]
> md0 : active raid1 sdb1[0]
> 497856 blocks [2/1] [U_]
>
> md1 : active raid1 sdb2[0]
> 1953013952 blocks [2/1] [U_]
>
> unused devices: <none>
> ```
Did you try downgrading to the previous kernel to see if that fixes the problem?
Then, it would be useful to bisect between the old working kernel and the new
broken kernel to see what introduced this bug.
Cheers, Andreas
[-- Attachment #2: Message signed with OpenPGP --]
[-- Type: application/pgp-signature, Size: 873 bytes --]
^ permalink raw reply [flat|nested] 12+ messages in thread
* Re: ext4: Funny characters appended to file names
2020-12-04 18:05 ` Theodore Y. Ts'o
@ 2020-12-05 19:34 ` Paul Menzel
2020-12-06 14:44 ` Colin Watson
0 siblings, 1 reply; 12+ messages in thread
From: Paul Menzel @ 2020-12-05 19:34 UTC (permalink / raw)
To: Theodore Y. Ts'o; +Cc: Andreas Dilger, linux-ext4, Colin Watson
[-- Attachment #1: Type: text/plain, Size: 7236 bytes --]
[Cc: +Colin]
Dear Ted,
Am 04.12.20 um 19:05 schrieb Theodore Y. Ts'o:
> On Fri, Dec 04, 2020 at 04:39:12PM +0100, Paul Menzel wrote:
Colin, the modules in `/boot/grub/i386-pc` look funny, and can’t be
loaded by GRUB anymore.
```
$ ls -lt /boot/grub/i386-pc/
insgesamt 2085
-rw-r--r-- 1 root root 512 13. Aug 23:00 'boot.img-'$'\205\300''u'$'
\023\211''鍓]'$'\206\371\377\211\360\350''f'$'\376\377\377\205
\300''ur'$'\203\354\004''V'$'\377''t$'$'\030''j'$'\002''胒'
-rw-r--r-- 1 root root 30893 13. Aug 23:00 'core.img-'$'\205\300''u'$'
\023\211''鍓]'$'\206\371\377\211\360\350''f'$'\376\377\377\205
\300''ur'$'\203\354\004''V'$'\377''t$'$'\030''j'$'\002''胒'
[…]
```
>>> $ sudo LANG=C fsck.ext4 -f /dev/md0
>>> e2fsck 1.45.6 (20-Mar-2020)
>>> Pass 1: Checking inodes, blocks, and sizes
>>> Pass 2: Checking directory structure
>>> Pass 3: Checking directory connectivity
>>> Pass 4: Checking reference counts
>>> Pass 5: Checking group summary information
>>> boot: 327/124928 files (17.7% non-contiguous), 126021/497856 blocks
>>
>> I can’t remember if that was an Ext2 or Ext3 when created several years ago.
>
> Well, the output dumpe2fs will tell us an awful lot about the file
> system.
Interesting. The file system was created in 2008. ;-) Please find the
dumpe2fs output attached.
> When was the last time the directory was OK? Do you know when it may
> have gotten corrupted?
The last reboot before. But I am really confused now though.
$ ls -ld /boot/grub/i386-pc
drwxr-xr-x 2 root root 28672 29. Nov 12:13 /boot/grub/i386-pc
But the module files in there are all from August 2020.
-rw-r--r-- 1 root root 2400 Aug 13 23:00
'part_gpt.mod-'$'\205\300''u'$'\023\211\351\215\223'']'$'\206\371\377\211\360\350''f'$'\376\377\377\205\300''ur'$'\203\354\004''V'$'\377''t$'$'\030''j'$'\002\350\203\222'
The characters in the file name look like some character encoding. Do
you know hat that is? UTF-8? The dumped output viewed in an editor shows
a “Asian” looking characters 胒.
$ last reboot
reboot system boot 5.9.0-4-686-pae Fri Dec 4 21:10 still running
reboot system boot 5.9.0-4-686-pae Sun Nov 29 17:56 - 17:02
(4+23:05)
reboot system boot 5.9.0-1-686-pae Sun Nov 29 09:37 - 12:50
(03:12)
reboot system boot 5.9.0-1-686-pae Sat Oct 31 20:49 - 23:40
(02:50)
So, I ran
Nov 29 10:58:55 mattotaupa sudo[2214]: paul : TTY=pts/0 ;
PWD=/home/paul ; USER=root ; COMMAND=/usr/bin/apt full-upgrade
and that also touched `/boot/grub/i386-pc`.
The GRUB packages and Linux package were updated according to
`/var/log/dpkg.log.1`.
2020-11-29 11:38:06 upgrade grub2-common:i386 2.04-9 2.04-10
[…]
2020-11-29 12:04:00 status installed
linux-image-5.9.0-4-686-pae:i386 5.9.11-1
[…]
2020-11-29 12:13:24 configure grub-pc:i386 2.04-10 <none>
2020-11-29 12:13:24 status unpacked grub-pc:i386 2.04-10
2020-11-29 12:13:24 status half-configured grub-pc:i386 2.04-10
[Dialog waited for my confirmation: Some GRUB warning regarding
block devices, which I always “ignore”, that means tell GRUB to be upgraded]
2020-11-29 12:43:21 status installed grub-pc:i386 2.04-10
[…]
So, afterward I was able to reboot without any issues.
But now, it gets really confusing. `last` claims, the system was running
for four days. But that was not the (power was unplugged in between). I
also can’t remember the shutdown failing in some strange way. In the
systemd journal, it’s also recorded as one boot, but messages are
missing, supporting it was powered off in between.
Nov 29 17:57:00 mattotaupa kernel: Linux version 5.9.0-4-686-pae
(debian-kernel@lists.debian.org) (gcc-10 (Debian 10.2.0-19) 10.2.0, GNU
ld (GNU Binutils for Debian) 2.35.1) #1 SMP Debian 5.9.11-1 (2020-11-27)
Nov 29 17:57:00 mattotaupa kernel: random: get_random_u32 called
from bsp_init_amd+0x12f/0x220 with crng_init=0
[…]
Nov 29 17:57:51 mattotaupa tracker-miner-f[1130]: Unable to get XDG
user directory path for special directory &MUSIC. Ignoring this location.
Nov 29 17:57:51 mattotaupa tracker-miner-f[1130]: Unable to get XDG
user directory path for special directory &PICTURES. Ignoring this location.
Nov 29 17:57:51 mattotaupa tracker-miner-f[1130]: Unable to get XDG
user directory path for special directory &VIDEOS. Ignoring this location.
Dez 04 14:48:12 mattotaupa systemd-timesyncd[706]: Initial
synchronization to time server [2a01:4f8:120:9224::2]:123
(2.debian.pool.ntp.org).
Dez 04 14:48:12 mattotaupa systemd[1]: Starting exim4-base
housekeeping...
Dez 04 14:48:12 mattotaupa systemd[1]: Starting Daily man-db
regeneration...
So, something really strange happened. But looking more into this, and
that I wasn’t definitely not home on November 29th, 2020 at 17:57, I
think the system time was just incorrect.
The (old) drive seems alright.
```
$ sudo smartctl -i /dev/sdb
smartctl 7.1 2019-12-30 r5022 [i686-linux-5.9.0-4-686-pae] (local build)
Copyright (C) 2002-19, Bruce Allen, Christian Franke, www.smartmontools.org
=== START OF INFORMATION SECTION ===
Model Family: Western Digital Caviar Green (AF)
Device Model: WDC WD20EARS-60MVWB0
Serial Number: WD-WCAZA4234015
LU WWN Device Id: 5 0014ee 20585a39e
Firmware Version: 51.0AB51
User Capacity: 2.000.398.934.016 bytes [2,00 TB]
Sector Sizes: 512 bytes logical, 4096 bytes physical
Form Factor: 3.5 inches
Device is: In smartctl database [for details use: -P show]
ATA Version is: ATA8-ACS (minor revision not indicated)
SATA Version is: SATA 2.6, 3.0 Gb/s
Local Time is: Sat Dec 5 20:08:13 2020 CET
SMART support is: Available - device has SMART capability.
SMART support is: Enabled
$ sudo smartctl -H /dev/sdb
smartctl 7.1 2019-12-30 r5022 [i686-linux-5.9.0-4-686-pae] (local build)
Copyright (C) 2002-19, Bruce Allen, Christian Franke, www.smartmontools.org
=== START OF READ SMART DATA SECTION ===
SMART overall-health self-assessment test result: PASSED
```
Please find `sudo smartctl --all /dev/sdb` attached.
Do you want me to re-install grub to see if it’s a problem introduced in
Debian’s GRUB 2.04-10?
> grub2 (2.04-10) unstable; urgency=medium
>
> [ Ian Campbell ]
> * Remove myself from uploaders.
>
> [ Colin Watson ]
> * When upgrading grub-pc noninteractively, bail out if grub-install fails.
> It's better to fail the upgrade than to produce a possibly-unbootable
> system.
> * Explicitly check whether the target device exists before running
> grub-install, since grub-install copies modules to /boot/grub/ before
> installing the core image, and the new modules might be incompatible
> with the old core image (closes: #966575).
> * Cherry-pick from upstream:
> - tftp: Roll-over block counter to prevent data packets timeouts
> (LP: #1892290).
>
> [ Dimitri John Ledkov ]
> * grub-install: Add backup and restore.
> * Don't call grub-install on fresh install of grub-pc. It's the job of
> installers to do that after a fresh install.
>
> -- Colin Watson <cjwatson@debian.org> Sun, 08 Nov 2020 16:26:08 +0000
Kind regards,
Paul
[-- Attachment #2: dumpe2fs.txt --]
[-- Type: text/plain, Size: 20488 bytes --]
Filesystem volume name: boot
Last mounted on: /boot
Filesystem UUID: 955b3fc7-59b5-449e-9d61-6e795165fda0
Filesystem magic number: 0xEF53
Filesystem revision #: 1 (dynamic)
Filesystem features: has_journal ext_attr resize_inode dir_index filetype sparse_super
Filesystem flags: signed_directory_hash
Default mount options: (none)
Filesystem state: clean
Errors behavior: Continue
Filesystem OS type: Linux
Inode count: 124928
Block count: 497856
Reserved block count: 24892
Free blocks: 371835
Free inodes: 124601
First block: 1
Block size: 1024
Fragment size: 1024
Reserved GDT blocks: 256
Blocks per group: 8192
Fragments per group: 8192
Inodes per group: 2048
Inode blocks per group: 256
Filesystem created: Thu Apr 3 18:32:24 2008
Last mount time: Sat Dec 5 18:52:39 2020
Last write time: Sat Dec 5 19:47:47 2020
Mount count: 2
Maximum mount count: 38
Last checked: Fri Dec 4 16:37:42 2020
Check interval: 15552000 (6 months)
Next check after: Wed Jun 2 17:37:42 2021
Lifetime writes: 16 GB
Reserved blocks uid: 0 (user root)
Reserved blocks gid: 0 (group root)
First inode: 11
Inode size: 128
Journal inode: 8
Default directory hash: tea
Directory Hash Seed: 841fff4e-7b84-425a-a26c-6eb3596db34d
Journal backup: inode blocks
Journal features: journal_incompat_revoke
Journal size: 8M
Journal length: 8192
Journal sequence: 0x0000adab
Journal start: 0
Gruppe 0: (Blöcke 1-8192)
Primär Superblock in 1, Gruppendeskriptoren in 2-3
reservierte GDT-Blöcke bei 4-259
Block-Bitmap in 260 (+259)
Inode-Bitmap in 261 (+260)
Inode-Tabelle in 262-517 (+261)
0 freie Blöcke, 2037 freie Inodes, 2 Verzeichnisse
Freie Blöcke:
Freie Inodes: 12-2048
Gruppe 1: (Blöcke 8193-16384)
Datensicherung Superblock in 8193, Gruppendeskriptoren in 8194-8195
reservierte GDT-Blöcke bei 8196-8451
Block-Bitmap in 8452 (+259)
Inode-Bitmap in 8453 (+260)
Inode-Tabelle in 8454-8709 (+261)
2000 freie Blöcke, 2048 freie Inodes, 0 Verzeichnisse
Freie Blöcke: 9393-9472, 9729-10240, 14977-16384
Freie Inodes: 2049-4096
Gruppe 2: (Blöcke 16385-24576)
Block-Bitmap in 16385 (+0)
Inode-Bitmap in 16386 (+1)
Inode-Tabelle in 16387-16642 (+2)
3398 freie Blöcke, 2048 freie Inodes, 0 Verzeichnisse
Freie Blöcke: 16643, 16645-18432, 20481-20511, 22529-23536, 23585-23808, 24038-24127, 24321-24576
Freie Inodes: 4097-6144
Gruppe 3: (Blöcke 24577-32768)
Datensicherung Superblock in 24577, Gruppendeskriptoren in 24578-24579
reservierte GDT-Blöcke bei 24580-24835
Block-Bitmap in 24836 (+259)
Inode-Bitmap in 24837 (+260)
Inode-Tabelle in 24838-25093 (+261)
3481 freie Blöcke, 2028 freie Inodes, 0 Verzeichnisse
Freie Blöcke: 25095-25168, 25185-25216, 25249-25488, 25505-26624, 30721-30722, 30724-31328, 31361-32768
Freie Inodes: 6152, 6160, 6164-6169, 6171-6172, 6174-6177, 6179-8192
Gruppe 4: (Blöcke 32769-40960)
Block-Bitmap in 32769 (+0)
Inode-Bitmap in 32770 (+1)
Inode-Tabelle in 32771-33026 (+2)
1790 freie Blöcke, 2048 freie Inodes, 0 Verzeichnisse
Freie Blöcke: 33027-34816
Freie Inodes: 8193-10240
Gruppe 5: (Blöcke 40961-49152)
Datensicherung Superblock in 40961, Gruppendeskriptoren in 40962-40963
reservierte GDT-Blöcke bei 40964-41219
Block-Bitmap in 41220 (+259)
Inode-Bitmap in 41221 (+260)
Inode-Tabelle in 41222-41477 (+261)
5006 freie Blöcke, 2048 freie Inodes, 0 Verzeichnisse
Freie Blöcke: 41498-43024, 43041-43104, 43137-43296, 43298-43520, 43559-45056, 47619-49152
Freie Inodes: 10241-12288
Gruppe 6: (Blöcke 49153-57344)
Block-Bitmap in 49153 (+0)
Inode-Bitmap in 49154 (+1)
Inode-Tabelle in 49155-49410 (+2)
1612 freie Blöcke, 2048 freie Inodes, 0 Verzeichnisse
Freie Blöcke: 49425-49664, 51905-53248, 55269-55296
Freie Inodes: 12289-14336
Gruppe 7: (Blöcke 57345-65536)
Datensicherung Superblock in 57345, Gruppendeskriptoren in 57346-57347
reservierte GDT-Blöcke bei 57348-57603
Block-Bitmap in 57604 (+259)
Inode-Bitmap in 57605 (+260)
Inode-Tabelle in 57606-57861 (+261)
3032 freie Blöcke, 2048 freie Inodes, 0 Verzeichnisse
Freie Blöcke: 57862-59392, 59971-60001, 62019-63488
Freie Inodes: 14337-16384
Gruppe 8: (Blöcke 65537-73728)
Block-Bitmap in 65537 (+0)
Inode-Bitmap in 65538 (+1)
Inode-Tabelle in 65539-65794 (+2)
6821 freie Blöcke, 2048 freie Inodes, 0 Verzeichnisse
Freie Blöcke: 65795-68128, 68193-68256, 68273-70144, 70289-71242, 71697-72376, 72591-73024, 73029-73040, 73050-73520
Freie Inodes: 16385-18432
Gruppe 9: (Blöcke 73729-81920)
Datensicherung Superblock in 73729, Gruppendeskriptoren in 73730-73731
reservierte GDT-Blöcke bei 73732-73987
Block-Bitmap in 73988 (+259)
Inode-Bitmap in 73989 (+260)
Inode-Tabelle in 73990-74245 (+261)
1019 freie Blöcke, 2048 freie Inodes, 0 Verzeichnisse
Freie Blöcke: 78342-78912, 79425-79872
Freie Inodes: 18433-20480
Gruppe 10: (Blöcke 81921-90112)
Block-Bitmap in 81921 (+0)
Inode-Bitmap in 81922 (+1)
Inode-Tabelle in 81923-82178 (+2)
6338 freie Blöcke, 2048 freie Inodes, 0 Verzeichnisse
Freie Blöcke: 82241-84480, 84531-85451, 85536, 85538-86016, 86049-88064, 89432-90112
Freie Inodes: 20481-22528
Gruppe 11: (Blöcke 90113-98304)
Block-Bitmap in 90113 (+0)
Inode-Bitmap in 90114 (+1)
Inode-Tabelle in 90115-90370 (+2)
3402 freie Blöcke, 2048 freie Inodes, 0 Verzeichnisse
Freie Blöcke: 90371-90912, 92961-93760, 94145-94776, 94854-96281
Freie Inodes: 22529-24576
Gruppe 12: (Blöcke 98305-106496)
Block-Bitmap in 98305 (+0)
Inode-Bitmap in 98306 (+1)
Inode-Tabelle in 98307-98562 (+2)
5694 freie Blöcke, 2048 freie Inodes, 0 Verzeichnisse
Freie Blöcke: 98563-100352, 102401-103552, 103681-104512, 104577-106496
Freie Inodes: 24577-26624
Gruppe 13: (Blöcke 106497-114688)
Block-Bitmap in 106497 (+0)
Inode-Bitmap in 106498 (+1)
Inode-Tabelle in 106499-106754 (+2)
3234 freie Blöcke, 2048 freie Inodes, 0 Verzeichnisse
Freie Blöcke: 106755-106784, 106813-106838, 106841-106868, 106873-106908, 106912-107129, 109181-110592, 111157-112640
Freie Inodes: 26625-28672
Gruppe 14: (Blöcke 114689-122880)
Block-Bitmap in 114689 (+0)
Inode-Bitmap in 114690 (+1)
Inode-Tabelle in 114691-114946 (+2)
5615 freie Blöcke, 2048 freie Inodes, 0 Verzeichnisse
Freie Blöcke: 114947-117623, 117761-120192, 120327-120832
Freie Inodes: 28673-30720
Gruppe 15: (Blöcke 122881-131072)
Block-Bitmap in 122881 (+0)
Inode-Bitmap in 122882 (+1)
Inode-Tabelle in 122883-123138 (+2)
7862 freie Blöcke, 2048 freie Inodes, 0 Verzeichnisse
Freie Blöcke: 123145-126011, 126017-126224, 126228-126232, 126240-126328, 126332-126464, 126513-131072
Freie Inodes: 30721-32768
Gruppe 16: (Blöcke 131073-139264)
Block-Bitmap in 131073 (+0)
Inode-Bitmap in 131074 (+1)
Inode-Tabelle in 131075-131330 (+2)
7934 freie Blöcke, 2048 freie Inodes, 0 Verzeichnisse
Freie Blöcke: 131331-139264
Freie Inodes: 32769-34816
Gruppe 17: (Blöcke 139265-147456)
Block-Bitmap in 139265 (+0)
Inode-Bitmap in 139266 (+1)
Inode-Tabelle in 139267-139522 (+2)
5886 freie Blöcke, 2048 freie Inodes, 0 Verzeichnisse
Freie Blöcke: 139523-141312, 143361-147456
Freie Inodes: 34817-36864
Gruppe 18: (Blöcke 147457-155648)
Block-Bitmap in 147457 (+0)
Inode-Bitmap in 147458 (+1)
Inode-Tabelle in 147459-147714 (+2)
7934 freie Blöcke, 2048 freie Inodes, 0 Verzeichnisse
Freie Blöcke: 147715-155648
Freie Inodes: 36865-38912
Gruppe 19: (Blöcke 155649-163840)
Block-Bitmap in 155649 (+0)
Inode-Bitmap in 155650 (+1)
Inode-Tabelle in 155651-155906 (+2)
7934 freie Blöcke, 2048 freie Inodes, 0 Verzeichnisse
Freie Blöcke: 155907-163840
Freie Inodes: 38913-40960
Gruppe 20: (Blöcke 163841-172032)
Block-Bitmap in 163841 (+0)
Inode-Bitmap in 163842 (+1)
Inode-Tabelle in 163843-164098 (+2)
7934 freie Blöcke, 2048 freie Inodes, 0 Verzeichnisse
Freie Blöcke: 164099-172032
Freie Inodes: 40961-43008
Gruppe 21: (Blöcke 172033-180224)
Block-Bitmap in 172033 (+0)
Inode-Bitmap in 172034 (+1)
Inode-Tabelle in 172035-172290 (+2)
7214 freie Blöcke, 2048 freie Inodes, 0 Verzeichnisse
Freie Blöcke: 172291-177024, 177665-179120, 179201-180224
Freie Inodes: 43009-45056
Gruppe 22: (Blöcke 180225-188416)
Block-Bitmap in 180225 (+0)
Inode-Bitmap in 180226 (+1)
Inode-Tabelle in 180227-180482 (+2)
3838 freie Blöcke, 2048 freie Inodes, 0 Verzeichnisse
Freie Blöcke: 180483-184320
Freie Inodes: 45057-47104
Gruppe 23: (Blöcke 188417-196608)
Block-Bitmap in 188417 (+0)
Inode-Bitmap in 188418 (+1)
Inode-Tabelle in 188419-188674 (+2)
3743 freie Blöcke, 2048 freie Inodes, 0 Verzeichnisse
Freie Blöcke: 188675-190464, 192513-193825, 193921-194560
Freie Inodes: 47105-49152
Gruppe 24: (Blöcke 196609-204800)
Block-Bitmap in 196609 (+0)
Inode-Bitmap in 196610 (+1)
Inode-Tabelle in 196611-196866 (+2)
7246 freie Blöcke, 2048 freie Inodes, 0 Verzeichnisse
Freie Blöcke: 196867-197632, 198321-204800
Freie Inodes: 49153-51200
Gruppe 25: (Blöcke 204801-212992)
Datensicherung Superblock in 204801, Gruppendeskriptoren in 204802-204803
reservierte GDT-Blöcke bei 204804-205059
Block-Bitmap in 205060 (+259)
Inode-Bitmap in 205061 (+260)
Inode-Tabelle in 205062-205317 (+261)
7675 freie Blöcke, 2048 freie Inodes, 0 Verzeichnisse
Freie Blöcke: 205318-212992
Freie Inodes: 51201-53248
Gruppe 26: (Blöcke 212993-221184)
Block-Bitmap in 212993 (+0)
Inode-Bitmap in 212994 (+1)
Inode-Tabelle in 212995-213250 (+2)
7934 freie Blöcke, 2048 freie Inodes, 0 Verzeichnisse
Freie Blöcke: 213251-221184
Freie Inodes: 53249-55296
Gruppe 27: (Blöcke 221185-229376)
Datensicherung Superblock in 221185, Gruppendeskriptoren in 221186-221187
reservierte GDT-Blöcke bei 221188-221443
Block-Bitmap in 221444 (+259)
Inode-Bitmap in 221445 (+260)
Inode-Tabelle in 221446-221701 (+261)
7405 freie Blöcke, 2048 freie Inodes, 0 Verzeichnisse
Freie Blöcke: 221702-222266, 222537-229376
Freie Inodes: 55297-57344
Gruppe 28: (Blöcke 229377-237568)
Block-Bitmap in 229377 (+0)
Inode-Bitmap in 229378 (+1)
Inode-Tabelle in 229379-229634 (+2)
5080 freie Blöcke, 2048 freie Inodes, 0 Verzeichnisse
Freie Blöcke: 229641-229664, 229721-229728, 229753-229760, 229877-229888, 229945-229952, 229973-229984, 230013-230016, 230051-230080, 230121-230144, 230184-230208, 230226-230240, 230268-230272, 230297-230304, 230330-230336, 230371-231424, 233473-233857, 233859-233888, 233908-233920, 233946-233952, 233983-233984, 234035-234048, 234066-234080, 234098-234112, 234158-234176, 234214-234240, 234260-237568
Freie Inodes: 57345-59392
Gruppe 29: (Blöcke 237569-245760)
Block-Bitmap in 237569 (+0)
Inode-Bitmap in 237570 (+1)
Inode-Tabelle in 237571-237826 (+2)
5344 freie Blöcke, 2048 freie Inodes, 0 Verzeichnisse
Freie Blöcke: 237828-237856, 237888-241664, 243713-244468, 244979-245760
Freie Inodes: 59393-61440
Gruppe 30: (Blöcke 245761-253952)
Block-Bitmap in 245761 (+0)
Inode-Bitmap in 245762 (+1)
Inode-Tabelle in 245763-246018 (+2)
6642 freie Blöcke, 2048 freie Inodes, 0 Verzeichnisse
Freie Blöcke: 246019-246144, 246195-249235, 249345-249856, 250990-253952
Freie Inodes: 61441-63488
Gruppe 31: (Blöcke 253953-262144)
Block-Bitmap in 253953 (+0)
Inode-Bitmap in 253954 (+1)
Inode-Tabelle in 253955-254210 (+2)
6787 freie Blöcke, 2048 freie Inodes, 0 Verzeichnisse
Freie Blöcke: 254211-254256, 254273-256288, 256321-256341, 256515-259072, 259459-259778, 260319-262144
Freie Inodes: 63489-65536
Gruppe 32: (Blöcke 262145-270336)
Block-Bitmap in 262145 (+0)
Inode-Bitmap in 262146 (+1)
Inode-Tabelle in 262147-262402 (+2)
7666 freie Blöcke, 2048 freie Inodes, 0 Verzeichnisse
Freie Blöcke: 262403-266224, 266241-266752, 266817-267904, 267969-268676, 268801-270336
Freie Inodes: 65537-67584
Gruppe 33: (Blöcke 270337-278528)
Block-Bitmap in 270337 (+0)
Inode-Bitmap in 270338 (+1)
Inode-Tabelle in 270339-270594 (+2)
7934 freie Blöcke, 2048 freie Inodes, 0 Verzeichnisse
Freie Blöcke: 270595-278528
Freie Inodes: 67585-69632
Gruppe 34: (Blöcke 278529-286720)
Block-Bitmap in 278529 (+0)
Inode-Bitmap in 278530 (+1)
Inode-Tabelle in 278531-278786 (+2)
7934 freie Blöcke, 2048 freie Inodes, 0 Verzeichnisse
Freie Blöcke: 278787-286720
Freie Inodes: 69633-71680
Gruppe 35: (Blöcke 286721-294912)
Block-Bitmap in 286721 (+0)
Inode-Bitmap in 286722 (+1)
Inode-Tabelle in 286723-286978 (+2)
7934 freie Blöcke, 2048 freie Inodes, 0 Verzeichnisse
Freie Blöcke: 286979-294912
Freie Inodes: 71681-73728
Gruppe 36: (Blöcke 294913-303104)
Block-Bitmap in 294913 (+0)
Inode-Bitmap in 294914 (+1)
Inode-Tabelle in 294915-295170 (+2)
7934 freie Blöcke, 2048 freie Inodes, 0 Verzeichnisse
Freie Blöcke: 295171-303104
Freie Inodes: 73729-75776
Gruppe 37: (Blöcke 303105-311296)
Block-Bitmap in 303105 (+0)
Inode-Bitmap in 303106 (+1)
Inode-Tabelle in 303107-303362 (+2)
7934 freie Blöcke, 2048 freie Inodes, 0 Verzeichnisse
Freie Blöcke: 303363-311296
Freie Inodes: 75777-77824
Gruppe 38: (Blöcke 311297-319488)
Block-Bitmap in 311297 (+0)
Inode-Bitmap in 311298 (+1)
Inode-Tabelle in 311299-311554 (+2)
4048 freie Blöcke, 1754 freie Inodes, 3 Verzeichnisse
Freie Blöcke: 311558-311664, 311669-311808, 311821-312320, 312322-312329, 312332-312351, 312353-312354, 312356-312403, 312405-312416, 312418-312426, 312428-313344, 314359-314368, 314591-315020, 315411-315560, 315906-315921, 315924-315940, 315942-316092, 316094-316526, 316929-317023, 317025-317440, 318494-318608, 318977-319016, 319077-319488
Freie Inodes: 78119-79872
Gruppe 39: (Blöcke 319489-327680)
Block-Bitmap in 319489 (+0)
Inode-Bitmap in 319490 (+1)
Inode-Tabelle in 319491-319746 (+2)
7145 freie Blöcke, 2046 freie Inodes, 1 Verzeichnisse
Freie Blöcke: 319747-319995, 319998-320029, 320094-320473, 320770-321152, 321281-322600, 322641-322654, 322656-324608, 324610-325120, 325122-326057, 326314-327680
Freie Inodes: 79875-81920
Gruppe 40: (Blöcke 327681-335872)
Block-Bitmap in 327681 (+0)
Inode-Bitmap in 327682 (+1)
Inode-Tabelle in 327683-327938 (+2)
6794 freie Blöcke, 2048 freie Inodes, 0 Verzeichnisse
Freie Blöcke: 327943-327945, 327947-327948, 327953-327999, 328001-328705, 328707, 328713-329216, 330024-333658, 333976-335872
Freie Inodes: 81921-83968
Gruppe 41: (Blöcke 335873-344064)
Block-Bitmap in 335873 (+0)
Inode-Bitmap in 335874 (+1)
Inode-Tabelle in 335875-336130 (+2)
5223 freie Blöcke, 2048 freie Inodes, 0 Verzeichnisse
Freie Blöcke: 336137-336384, 336568-336640, 336825-337920, 340259-344064
Freie Inodes: 83969-86016
Gruppe 42: (Blöcke 344065-352256)
Block-Bitmap in 344065 (+0)
Inode-Bitmap in 344066 (+1)
Inode-Tabelle in 344067-344322 (+2)
7608 freie Blöcke, 2048 freie Inodes, 0 Verzeichnisse
Freie Blöcke: 344323-350626, 350953-352256
Freie Inodes: 86017-88064
Gruppe 43: (Blöcke 352257-360448)
Block-Bitmap in 352257 (+0)
Inode-Bitmap in 352258 (+1)
Inode-Tabelle in 352259-352514 (+2)
7704 freie Blöcke, 2048 freie Inodes, 0 Verzeichnisse
Freie Blöcke: 352515-355803, 355971-356289, 356353-360448
Freie Inodes: 88065-90112
Gruppe 44: (Blöcke 360449-368640)
Block-Bitmap in 360449 (+0)
Inode-Bitmap in 360450 (+1)
Inode-Tabelle in 360451-360706 (+2)
7615 freie Blöcke, 2048 freie Inodes, 0 Verzeichnisse
Freie Blöcke: 360707-361168, 361488-368640
Freie Inodes: 90113-92160
Gruppe 45: (Blöcke 368641-376832)
Block-Bitmap in 368641 (+0)
Inode-Bitmap in 368642 (+1)
Inode-Tabelle in 368643-368898 (+2)
7934 freie Blöcke, 2048 freie Inodes, 0 Verzeichnisse
Freie Blöcke: 368899-376832
Freie Inodes: 92161-94208
Gruppe 46: (Blöcke 376833-385024)
Block-Bitmap in 376833 (+0)
Inode-Bitmap in 376834 (+1)
Inode-Tabelle in 376835-377090 (+2)
7107 freie Blöcke, 2048 freie Inodes, 0 Verzeichnisse
Freie Blöcke: 377091-377681, 377841-384356
Freie Inodes: 94209-96256
Gruppe 47: (Blöcke 385025-393216)
Block-Bitmap in 385025 (+0)
Inode-Bitmap in 385026 (+1)
Inode-Tabelle in 385027-385282 (+2)
6938 freie Blöcke, 2048 freie Inodes, 0 Verzeichnisse
Freie Blöcke: 385283-386432, 387073-389266, 389623-393216
Freie Inodes: 96257-98304
Gruppe 48: (Blöcke 393217-401408)
Block-Bitmap in 393217 (+0)
Inode-Bitmap in 393218 (+1)
Inode-Tabelle in 393219-393474 (+2)
7678 freie Blöcke, 2048 freie Inodes, 0 Verzeichnisse
Freie Blöcke: 393475-393944, 394201-401408
Freie Inodes: 98305-100352
Gruppe 49: (Blöcke 401409-409600)
Datensicherung Superblock in 401409, Gruppendeskriptoren in 401410-401411
reservierte GDT-Blöcke bei 401412-401667
Block-Bitmap in 401668 (+259)
Inode-Bitmap in 401669 (+260)
Inode-Tabelle in 401670-401925 (+261)
7163 freie Blöcke, 2048 freie Inodes, 0 Verzeichnisse
Freie Blöcke: 401926-407040, 407553-409600
Freie Inodes: 100353-102400
Gruppe 50: (Blöcke 409601-417792)
Block-Bitmap in 409601 (+0)
Inode-Bitmap in 409602 (+1)
Inode-Tabelle in 409603-409858 (+2)
7228 freie Blöcke, 2048 freie Inodes, 0 Verzeichnisse
Freie Blöcke: 409859-413087, 413282-413696, 414209-417792
Freie Inodes: 102401-104448
Gruppe 51: (Blöcke 417793-425984)
Block-Bitmap in 417793 (+0)
Inode-Bitmap in 417794 (+1)
Inode-Tabelle in 417795-418050 (+2)
7111 freie Blöcke, 2048 freie Inodes, 0 Verzeichnisse
Freie Blöcke: 418051-418064, 418081-418590, 418847-420864, 421377-422069, 422109-425984
Freie Inodes: 104449-106496
Gruppe 52: (Blöcke 425985-434176)
Block-Bitmap in 425985 (+0)
Inode-Bitmap in 425986 (+1)
Inode-Tabelle in 425987-426242 (+2)
6686 freie Blöcke, 2048 freie Inodes, 0 Verzeichnisse
Freie Blöcke: 426243-426745, 426752-426880, 427233-429084, 429615-429924, 430285-434176
Freie Inodes: 106497-108544
Gruppe 53: (Blöcke 434177-442368)
Block-Bitmap in 434177 (+0)
Inode-Bitmap in 434178 (+1)
Inode-Tabelle in 434179-434434 (+2)
7934 freie Blöcke, 2048 freie Inodes, 0 Verzeichnisse
Freie Blöcke: 434435-442368
Freie Inodes: 108545-110592
Gruppe 54: (Blöcke 442369-450560)
Block-Bitmap in 442369 (+0)
Inode-Bitmap in 442370 (+1)
Inode-Tabelle in 442371-442626 (+2)
6442 freie Blöcke, 2048 freie Inodes, 0 Verzeichnisse
Freie Blöcke: 442627-445522, 446203-447332, 448145-450560
Freie Inodes: 110593-112640
Gruppe 55: (Blöcke 450561-458752)
Block-Bitmap in 450561 (+0)
Inode-Bitmap in 450562 (+1)
Inode-Tabelle in 450563-450818 (+2)
6558 freie Blöcke, 2048 freie Inodes, 0 Verzeichnisse
Freie Blöcke: 450819-454480, 454954-456972, 457217-457929, 458065-458112, 458379-458494
Freie Inodes: 112641-114688
Gruppe 56: (Blöcke 458753-466944)
Block-Bitmap in 458753 (+0)
Inode-Bitmap in 458754 (+1)
Inode-Tabelle in 458755-459010 (+2)
7428 freie Blöcke, 2048 freie Inodes, 0 Verzeichnisse
Freie Blöcke: 459011-459264, 459771-466944
Freie Inodes: 114689-116736
Gruppe 57: (Blöcke 466945-475136)
Block-Bitmap in 466945 (+0)
Inode-Bitmap in 466946 (+1)
Inode-Tabelle in 466947-467202 (+2)
6437 freie Blöcke, 2048 freie Inodes, 0 Verzeichnisse
Freie Blöcke: 467537-469088, 469550-471464, 471657-473346, 473857-475136
Freie Inodes: 116737-118784
Gruppe 58: (Blöcke 475137-483328)
Block-Bitmap in 475137 (+0)
Inode-Bitmap in 475138 (+1)
Inode-Tabelle in 475139-475394 (+2)
6559 freie Blöcke, 2048 freie Inodes, 0 Verzeichnisse
Freie Blöcke: 475395-476069, 476359-481664, 482179-482690, 483263-483328
Freie Inodes: 118785-120832
Gruppe 59: (Blöcke 483329-491520)
Block-Bitmap in 483329 (+0)
Inode-Bitmap in 483330 (+1)
Inode-Tabelle in 483331-483586 (+2)
6573 freie Blöcke, 2048 freie Inodes, 0 Verzeichnisse
Freie Blöcke: 483587-484352, 484801-487424, 488081-489215, 489473-491520
Freie Inodes: 120833-122880
Gruppe 60: (Blöcke 491521-497855)
Block-Bitmap in 491521 (+0)
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5752 freie Blöcke, 2048 freie Inodes, 0 Verzeichnisse
Freie Blöcke: 491779-495610, 495617-497536
Freie Inodes: 122881-124928
[-- Attachment #3: smartctl-all-dev-sdb.txt --]
[-- Type: text/plain, Size: 4877 bytes --]
$ sudo smartctl --all /dev/sdb
smartctl 7.1 2019-12-30 r5022 [i686-linux-5.9.0-4-686-pae] (local build)
Copyright (C) 2002-19, Bruce Allen, Christian Franke, www.smartmontools.org
=== START OF INFORMATION SECTION ===
Model Family: Western Digital Caviar Green (AF)
Device Model: WDC WD20EARS-60MVWB0
Serial Number: WD-WCAZA4234015
LU WWN Device Id: 5 0014ee 20585a39e
Firmware Version: 51.0AB51
User Capacity: 2.000.398.934.016 bytes [2,00 TB]
Sector Sizes: 512 bytes logical, 4096 bytes physical
Form Factor: 3.5 inches
Device is: In smartctl database [for details use: -P show]
ATA Version is: ATA8-ACS (minor revision not indicated)
SATA Version is: SATA 2.6, 3.0 Gb/s
Local Time is: Sat Dec 5 20:09:45 2020 CET
SMART support is: Available - device has SMART capability.
SMART support is: Enabled
=== START OF READ SMART DATA SECTION ===
SMART overall-health self-assessment test result: PASSED
General SMART Values:
Offline data collection status: (0x84) Offline data collection activity
was suspended by an interrupting command from host.
Auto Offline Data Collection: Enabled.
Self-test execution status: ( 0) The previous self-test routine completed
without error or no self-test has ever
been run.
Total time to complete Offline
data collection: (37980) seconds.
Offline data collection
capabilities: (0x5b) SMART execute Offline immediate.
Auto Offline data collection on/off support.
Suspend Offline collection upon new
command.
Offline surface scan supported.
Self-test supported.
No Conveyance Self-test supported.
Selective Self-test supported.
SMART capabilities: (0x0003) Saves SMART data before entering
power-saving mode.
Supports SMART auto save timer.
Error logging capability: (0x01) Error logging supported.
General Purpose Logging supported.
Short self-test routine
recommended polling time: ( 2) minutes.
Extended self-test routine
recommended polling time: ( 366) minutes.
SCT capabilities: (0x303d) SCT Status supported.
SCT Error Recovery Control supported.
SCT Feature Control supported.
SCT Data Table supported.
SMART Attributes Data Structure revision number: 16
Vendor Specific SMART Attributes with Thresholds:
ID# ATTRIBUTE_NAME FLAG VALUE WORST THRESH TYPE UPDATED WHEN_FAILED RAW_VALUE
1 Raw_Read_Error_Rate 0x002f 200 200 051 Pre-fail Always - 6
3 Spin_Up_Time 0x0027 253 185 021 Pre-fail Always - 1341
4 Start_Stop_Count 0x0032 094 094 000 Old_age Always - 6251
5 Reallocated_Sector_Ct 0x0033 200 200 140 Pre-fail Always - 0
7 Seek_Error_Rate 0x002f 200 200 051 Pre-fail Always - 0
9 Power_On_Hours 0x0032 085 085 000 Old_age Always - 11073
10 Spin_Retry_Count 0x0033 100 100 051 Pre-fail Always - 0
11 Calibration_Retry_Count 0x0032 100 100 000 Old_age Always - 0
12 Power_Cycle_Count 0x0032 094 094 000 Old_age Always - 6208
184 End-to-End_Error 0x0033 100 100 097 Pre-fail Always - 0
187 Reported_Uncorrect 0x0032 100 100 000 Old_age Always - 0
188 Command_Timeout 0x0032 100 097 000 Old_age Always - 17180262425
190 Airflow_Temperature_Cel 0x0022 067 057 040 Old_age Always - 33 (Min/Max 19/33)
192 Power-Off_Retract_Count 0x0032 200 200 000 Old_age Always - 582
193 Load_Cycle_Count 0x0032 199 199 000 Old_age Always - 5668
196 Reallocated_Event_Count 0x0032 200 200 000 Old_age Always - 0
197 Current_Pending_Sector 0x0032 200 200 000 Old_age Always - 0
198 Offline_Uncorrectable 0x0030 200 200 000 Old_age Offline - 0
199 UDMA_CRC_Error_Count 0x0032 200 200 000 Old_age Always - 1
200 Multi_Zone_Error_Rate 0x0008 200 200 000 Old_age Offline - 3
SMART Error Log Version: 1
No Errors Logged
SMART Self-test log structure revision number 1
No self-tests have been logged. [To run self-tests, use: smartctl -t]
SMART Selective self-test log data structure revision number 1
SPAN MIN_LBA MAX_LBA CURRENT_TEST_STATUS
1 0 0 Not_testing
2 0 0 Not_testing
3 0 0 Not_testing
4 0 0 Not_testing
5 0 0 Not_testing
Selective self-test flags (0x0):
After scanning selected spans, do NOT read-scan remainder of disk.
If Selective self-test is pending on power-up, resume after 0 minute delay.
^ permalink raw reply [flat|nested] 12+ messages in thread
* Re: ext4: Funny characters appended to file names
2020-12-05 19:34 ` Paul Menzel
@ 2020-12-06 14:44 ` Colin Watson
2020-12-06 15:15 ` Theodore Y. Ts'o
2020-12-06 18:27 ` Colin Watson
0 siblings, 2 replies; 12+ messages in thread
From: Colin Watson @ 2020-12-06 14:44 UTC (permalink / raw)
To: Paul Menzel
Cc: Theodore Y. Ts'o, Andreas Dilger, linux-ext4, Dimitri John Ledkov
On Sat, Dec 05, 2020 at 08:34:34PM +0100, Paul Menzel wrote:
> [Cc: +Colin]
Also CCing Dimitri, whose GRUB patch this may be related to. Dimitri,
see https://marc.info/?l=linux-ext4&m=160719695914303&w=2 for the full
message I'm replying to.
> Am 04.12.20 um 19:05 schrieb Theodore Y. Ts'o:
> > On Fri, Dec 04, 2020 at 04:39:12PM +0100, Paul Menzel wrote:
>
> Colin, the modules in `/boot/grub/i386-pc` look funny, and can’t be loaded
> by GRUB anymore.
>
> ```
> $ ls -lt /boot/grub/i386-pc/
> insgesamt 2085
> -rw-r--r-- 1 root root 512 13. Aug 23:00 'boot.img-'$'\205\300''u'$'
> \023\211''鍓]'$'\206\371\377\211\360\350''f'$'\376\377\377\205
> \300''ur'$'\203\354\004''V'$'\377''t$'$'\030''j'$'\002''胒'
> -rw-r--r-- 1 root root 30893 13. Aug 23:00 'core.img-'$'\205\300''u'$'
> \023\211''鍓]'$'\206\371\377\211\360\350''f'$'\376\377\377\205
> \300''ur'$'\203\354\004''V'$'\377''t$'$'\030''j'$'\002''胒'
> […]
> ```
[...]
> > When was the last time the directory was OK? Do you know when it may
> > have gotten corrupted?
>
> The last reboot before. But I am really confused now though.
>
> $ ls -ld /boot/grub/i386-pc
> drwxr-xr-x 2 root root 28672 29. Nov 12:13 /boot/grub/i386-pc
>
> But the module files in there are all from August 2020.
>
> -rw-r--r-- 1 root root 2400 Aug 13 23:00 'part_gpt.mod-'$'\205\300''u'$'\023\211\351\215\223'']'$'\206\371\377\211\360\350''f'$'\376\377\377\205\300''ur'$'\203\354\004''V'$'\377''t$'$'\030''j'$'\002\350\203\222'
>
> The characters in the file name look like some character encoding. Do you
> know hat that is? UTF-8? The dumped output viewed in an editor shows a
> “Asian” looking characters 胒.
It seems rather more likely to be junk from uninitialised memory.
> 2020-11-29 11:38:06 upgrade grub2-common:i386 2.04-9 2.04-10
> […]
> 2020-11-29 12:04:00 status installed linux-image-5.9.0-4-686-pae:i386
> 5.9.11-1
> […]
> 2020-11-29 12:13:24 configure grub-pc:i386 2.04-10 <none>
> 2020-11-29 12:13:24 status unpacked grub-pc:i386 2.04-10
> 2020-11-29 12:13:24 status half-configured grub-pc:i386 2.04-10
> [Dialog waited for my confirmation: Some GRUB warning regarding block
> devices, which I always “ignore”, that means tell GRUB to be upgraded]
You need to actually look into this and fix it properly rather than
ignoring it. It's probably related to this problem, since a successful
installation doesn't go down the RESTORE_BACKUP path which I think is
the suspicious one here.
> 2020-11-29 12:43:21 status installed grub-pc:i386 2.04-10
> […]
>
> So, afterward I was able to reboot without any issues.
[...]
> Do you want me to re-install grub to see if it’s a problem introduced in
> Debian’s GRUB 2.04-10?
Now that I look at it more closely, some of the changes to
clean_grub_dir_real look suspicious:
+ char *srcf = grub_util_path_concat (2, di, de->d_name);
+
+ if (mode == CREATE_BACKUP)
+ {
+ char *dstf = grub_util_path_concat_ext (2, di, de->d_name, "-");
+ if (grub_util_rename (srcf, dstf) < 0)
+ grub_util_error (_("cannot backup `%s': %s"), srcf,
+ grub_util_fd_strerror ());
+ free (dstf);
+ }
+ else if (mode == RESTORE_BACKUP)
+ {
+ char *dstf = grub_util_path_concat_ext (2, di, de->d_name);
+ dstf[strlen (dstf) - 1] = 0;
+ if (grub_util_rename (srcf, dstf) < 0)
+ grub_util_error (_("cannot restore `%s': %s"), dstf,
+ grub_util_fd_strerror ());
+ free (dstf);
+ }
+ else
+ {
+ if (grub_util_unlink (srcf) < 0)
+ grub_util_error (_("cannot delete `%s': %s"), srcf,
+ grub_util_fd_strerror ());
+ }
+ free (srcf);
grub_util_path_concat is a helper that joins its arguments with "/";
grub_util_path_concat_ext does likewise except the last argument is
appended as an extension without first appending "/". The first
argument to both of these functions is "n": grub_util_path_concat
expects n further argument, while grub_util_path_concat_ext expects n +
1 further arguments.
So, in the RESTORE_BACKUP case, shouldn't that be:
char *dstf = grub_util_path_concat (2, di, de->d_name);
... rather than grub_util_path_concat_ext? Otherwise it seems to me
that it's going to try to append an additional argument which doesn't
exist, and may well add random uninitialised stuff from memory. Running
grub-install under valgrind would probably show this up (I can't get it
to do it for me so far, but most likely I just haven't set up quite the
right initial conditions).
This looks more likely to be a userspace problem rather than filesystem
corruption. I think this should likely be refiled as a bug against
Debian's grub2 package.
--
Colin Watson (he/him) [cjwatson@debian.org]
^ permalink raw reply [flat|nested] 12+ messages in thread
* Re: ext4: Funny characters appended to file names
2020-12-06 14:44 ` Colin Watson
@ 2020-12-06 15:15 ` Theodore Y. Ts'o
2020-12-06 17:37 ` Colin Watson
2020-12-06 18:27 ` Colin Watson
1 sibling, 1 reply; 12+ messages in thread
From: Theodore Y. Ts'o @ 2020-12-06 15:15 UTC (permalink / raw)
To: Colin Watson; +Cc: Paul Menzel, Andreas Dilger, linux-ext4, Dimitri John Ledkov
On Sun, Dec 06, 2020 at 02:44:16PM +0000, Colin Watson wrote:
> > Colin, the modules in `/boot/grub/i386-pc` look funny, and can’t be loaded
> > by GRUB anymore.
> >
> > ```
> > $ ls -lt /boot/grub/i386-pc/
> > insgesamt 2085
> > -rw-r--r-- 1 root root 512 13. Aug 23:00 'boot.img-'$'\205\300''u'$'
> > \023\211''鍓]'$'\206\371\377\211\360\350''f'$'\376\377\377\205
I think Colin theory makes sense. Note the hypthen after "boot.img".
That corresponds with the 'i' in the code below:
> Now that I look at it more closely, some of the changes to
> clean_grub_dir_real look suspicious:
>
> + char *srcf = grub_util_path_concat (2, di, de->d_name);
> +
> + if (mode == CREATE_BACKUP)
> + {
> + char *dstf = grub_util_path_concat_ext (2, di, de->d_name, "-");
> + if (grub_util_rename (srcf, dstf) < 0)
> + grub_util_error (_("cannot backup `%s': %s"), srcf,
> + grub_util_fd_strerror ());
> + free (dstf);
> + }
... however, if I'm understanding the code correctly, this is the
codepath used to create the backup file (e.g., the previous version of
boot.img). So shouldn't there be a "boot.img" file in
/boot/grub/i386-pc which would be the newly installed version of that
file, and so the system would actually be booting correctly?
Or am I misunderstanding what is going on? Paul, I thought you said
your system wasn't able to boot because the needed files in
/boot/grub/i386-pc had apparently been corrupted?
Essentially, there are three possibilities:
1) A hardware corruption which corrupted the directory.
2) A kernel bug which corrupted the directory.
3) The file system isn't actually corrupted, but the filename with the
random garbage in the filename was created because a userspace
application so requested it.
The fact that all of the filenames have the a similar pattern of
corruption to them would tend to rule out #1. And the fact that
e2fsck didn't notice any other corruptions would tend to argue against
#1 and #2. So #3 does seem to be the most likely.
- Ted
^ permalink raw reply [flat|nested] 12+ messages in thread
* Re: ext4: Funny characters appended to file names
2020-12-06 15:15 ` Theodore Y. Ts'o
@ 2020-12-06 17:37 ` Colin Watson
2020-12-06 17:44 ` Colin Watson
0 siblings, 1 reply; 12+ messages in thread
From: Colin Watson @ 2020-12-06 17:37 UTC (permalink / raw)
To: Theodore Y. Ts'o
Cc: Paul Menzel, Andreas Dilger, linux-ext4, Dimitri John Ledkov
On Sun, Dec 06, 2020 at 10:15:27AM -0500, Theodore Y. Ts'o wrote:
> On Sun, Dec 06, 2020 at 02:44:16PM +0000, Colin Watson wrote:
> > Now that I look at it more closely, some of the changes to
> > clean_grub_dir_real look suspicious:
> >
> > + char *srcf = grub_util_path_concat (2, di, de->d_name);
> > +
> > + if (mode == CREATE_BACKUP)
> > + {
> > + char *dstf = grub_util_path_concat_ext (2, di, de->d_name, "-");
> > + if (grub_util_rename (srcf, dstf) < 0)
> > + grub_util_error (_("cannot backup `%s': %s"), srcf,
> > + grub_util_fd_strerror ());
> > + free (dstf);
> > + }
>
> ... however, if I'm understanding the code correctly, this is the
> codepath used to create the backup file (e.g., the previous version of
> boot.img). So shouldn't there be a "boot.img" file in
> /boot/grub/i386-pc which would be the newly installed version of that
> file, and so the system would actually be booting correctly?
Not quite. What's described here as "backup/restore" thing is used as
follows:
* rename old modules aside as a backup
* do the rest of the installation (writing to the MBR or similar, as
well as copying in new modules)
* if installation succeeds, remove the backup files
* if installation fails, then:
* remove the newly-created modules
* move the backup files back into place
But if the restored file names are computed wrongly, then this leaves
the system in a bad state as Paul described.
I don't know why Dimitri chose to explicitly remove the new files first
rather than just renaming over the top and then removing any leftovers
at the end; that seems unnecessarily risky. Though this is code that's
apparently supposed to work on Windows as well, and the MoveFile
function that's used to implement grub_util_rename there requires the
destination file not to exist (sigh), so maybe it had something to do
with that.
> Essentially, there are three possibilities:
>
> 1) A hardware corruption which corrupted the directory.
>
> 2) A kernel bug which corrupted the directory.
>
> 3) The file system isn't actually corrupted, but the filename with the
> random garbage in the filename was created because a userspace
> application so requested it.
>
> The fact that all of the filenames have the a similar pattern of
> corruption to them would tend to rule out #1. And the fact that
> e2fsck didn't notice any other corruptions would tend to argue against
> #1 and #2. So #3 does seem to be the most likely.
Yep.
--
Colin Watson (he/him) [cjwatson@ubuntu.com]
^ permalink raw reply [flat|nested] 12+ messages in thread
* Re: ext4: Funny characters appended to file names
2020-12-06 17:37 ` Colin Watson
@ 2020-12-06 17:44 ` Colin Watson
0 siblings, 0 replies; 12+ messages in thread
From: Colin Watson @ 2020-12-06 17:44 UTC (permalink / raw)
To: Theodore Y. Ts'o
Cc: Paul Menzel, Andreas Dilger, linux-ext4, Dimitri John Ledkov
On Sun, Dec 06, 2020 at 05:37:46PM +0000, Colin Watson wrote:
> I don't know why Dimitri chose to explicitly remove the new files first
> rather than just renaming over the top and then removing any leftovers
> at the end; that seems unnecessarily risky. Though this is code that's
> apparently supposed to work on Windows as well, and the MoveFile
> function that's used to implement grub_util_rename there requires the
> destination file not to exist (sigh), so maybe it had something to do
> with that.
Incidentally, if this is actually the reason, then I think this would be
a viable replacement:
ret = !MoveFileEx (windows_from, windows_to, MOVEFILE_REPLACE_EXISTING);
Not that I really speak the Windows API ...
--
Colin Watson (he/him) [cjwatson@ubuntu.com]
^ permalink raw reply [flat|nested] 12+ messages in thread
* Re: ext4: Funny characters appended to file names
2020-12-06 14:44 ` Colin Watson
2020-12-06 15:15 ` Theodore Y. Ts'o
@ 2020-12-06 18:27 ` Colin Watson
2020-12-07 2:00 ` Dimitri John Ledkov
1 sibling, 1 reply; 12+ messages in thread
From: Colin Watson @ 2020-12-06 18:27 UTC (permalink / raw)
To: Paul Menzel
Cc: Theodore Y. Ts'o, Andreas Dilger, linux-ext4, Dimitri John Ledkov
On Sun, Dec 06, 2020 at 02:44:16PM +0000, Colin Watson wrote:
> So, in the RESTORE_BACKUP case, shouldn't that be:
>
> char *dstf = grub_util_path_concat (2, di, de->d_name);
>
> ... rather than grub_util_path_concat_ext? Otherwise it seems to me
> that it's going to try to append an additional argument which doesn't
> exist, and may well add random uninitialised stuff from memory. Running
> grub-install under valgrind would probably show this up (I can't get it
> to do it for me so far, but most likely I just haven't set up quite the
> right initial conditions).
While I couldn't reproduce this on amd64 (and valgrind didn't show any
errors), I can reproduce it just fine on i386, which is what Paul is
using. I guess the va_list layout in memory is different enough between
the two ABIs to tickle this.
I'll apply this patch for Debian grub2 2.04-11, which I've confirmed
fixes it for me:
diff --git a/util/grub-install-common.c b/util/grub-install-common.c
index a883b6dae..61f9075bc 100644
--- a/util/grub-install-common.c
+++ b/util/grub-install-common.c
@@ -247,7 +247,7 @@ clean_grub_dir_real (const char *di, enum clean_grub_dir_mode mode)
}
else if (mode == RESTORE_BACKUP)
{
- char *dstf = grub_util_path_concat_ext (2, di, de->d_name);
+ char *dstf = grub_util_path_concat (2, di, de->d_name);
dstf[strlen (dstf) - 1] = 0;
if (grub_util_rename (srcf, dstf) < 0)
grub_util_error (_("cannot restore `%s': %s"), dstf,
Dimitri, I know Ubuntu isn't very interested in supporting i386, but IMO
you should apply this patch to Ubuntu in any case; it might affect other
architectures, and anyway leaving known undefined behaviour around isn't
a good idea.
Paul, note that you'll also need to run "sudo rm -f
/boot/grub/i386-pc/*.{img,lst,mo,mod,o,sh}-*" to clean up the stray
files created by this bug.
--
Colin Watson (he/him) [cjwatson@debian.org]
^ permalink raw reply related [flat|nested] 12+ messages in thread
* Re: ext4: Funny characters appended to file names
2020-12-06 18:27 ` Colin Watson
@ 2020-12-07 2:00 ` Dimitri John Ledkov
0 siblings, 0 replies; 12+ messages in thread
From: Dimitri John Ledkov @ 2020-12-07 2:00 UTC (permalink / raw)
To: Colin Watson
Cc: Paul Menzel, Theodore Y. Ts'o, Andreas Dilger, linux-ext4
Hi,
On Sun, 6 Dec 2020, 18:28 Colin Watson, <cjwatson@debian.org> wrote:
>
> On Sun, Dec 06, 2020 at 02:44:16PM +0000, Colin Watson wrote:
> > So, in the RESTORE_BACKUP case, shouldn't that be:
> >
> > char *dstf = grub_util_path_concat (2, di, de->d_name);
> >
> > ... rather than grub_util_path_concat_ext? Otherwise it seems to me
> > that it's going to try to append an additional argument which doesn't
> > exist, and may well add random uninitialised stuff from memory. Running
> > grub-install under valgrind would probably show this up (I can't get it
> > to do it for me so far, but most likely I just haven't set up quite the
> > right initial conditions).
>
> While I couldn't reproduce this on amd64 (and valgrind didn't show any
> errors), I can reproduce it just fine on i386, which is what Paul is
> using. I guess the va_list layout in memory is different enough between
> the two ABIs to tickle this.
>
Indeed, my patch was not tested on i386 and has had limited reviews
before landing in Ubuntu. Still not reviewed on the upstream mailing
list.
I am sorry for causing this issue.
> I'll apply this patch for Debian grub2 2.04-11, which I've confirmed
> fixes it for me:
>
> diff --git a/util/grub-install-common.c b/util/grub-install-common.c
> index a883b6dae..61f9075bc 100644
> --- a/util/grub-install-common.c
> +++ b/util/grub-install-common.c
> @@ -247,7 +247,7 @@ clean_grub_dir_real (const char *di, enum clean_grub_dir_mode mode)
> }
> else if (mode == RESTORE_BACKUP)
> {
> - char *dstf = grub_util_path_concat_ext (2, di, de->d_name);
> + char *dstf = grub_util_path_concat (2, di, de->d_name);
> dstf[strlen (dstf) - 1] = 0;
> if (grub_util_rename (srcf, dstf) < 0)
> grub_util_error (_("cannot restore `%s': %s"), dstf,
>
> Dimitri, I know Ubuntu isn't very interested in supporting i386, but IMO
> you should apply this patch to Ubuntu in any case; it might affect other
> architectures, and anyway leaving known undefined behaviour around isn't
> a good idea.
>
Will do. And will resend it to the grub mailing list.
> Paul, note that you'll also need to run "sudo rm -f
> /boot/grub/i386-pc/*.{img,lst,mo,mod,o,sh}-*" to clean up the stray
> files created by this bug.
Thank you everyone for the code review.
^ permalink raw reply [flat|nested] 12+ messages in thread
end of thread, other threads:[~2020-12-07 2:01 UTC | newest]
Thread overview: 12+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2020-12-04 14:30 ext4: Funny characters appended to file names Paul Menzel
2020-12-04 15:28 ` Theodore Y. Ts'o
2020-12-04 15:39 ` Paul Menzel
2020-12-04 18:05 ` Theodore Y. Ts'o
2020-12-05 19:34 ` Paul Menzel
2020-12-06 14:44 ` Colin Watson
2020-12-06 15:15 ` Theodore Y. Ts'o
2020-12-06 17:37 ` Colin Watson
2020-12-06 17:44 ` Colin Watson
2020-12-06 18:27 ` Colin Watson
2020-12-07 2:00 ` Dimitri John Ledkov
2020-12-04 20:02 ` Andreas Dilger
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