Re: File system won't wake up
From: Thorben Grosser (thorben_at_iceberg.lu)
Date: 06/23/05
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Date: Thu, 23 Jun 2005 23:29:09 +0200
Peter T. Breuer wrote:
>>> # dd if=/dev/hdd > /dev/null
>>
>>okay, zero in, zero out, seems to be a real problem or how shall I
>>understand that?
>
> The "disk" is not readable. You would give me slightly more data by
> telling me the error reported (use strace, and/or test the error retorn
> value from the dd).
okay, actually I am not familliar with strace, but I hope I did it right
(cf. [1]). Actually I reached the borders of my knowledge as I don't
really see more information in the Output, maybe you can, or maybe I
just did it wrong, sorry for bugging you :)
>>Jun 22 13:47:04 gosingen kernel: Symbols match kernel version 2.4.18.
>>Jun 22 13:47:04 gosingen kernel: Loaded 489 symbols
>>51hlJHzUffE4d0tDgB/Vu+qU9svSHeiJHToOa9HNtPb (and so on...)
>>
>>Jun 23 20:13:53 gosingen kernel: end_request: I/O error, dev 16:40
>>(hdd), sector 6
>
>
> 16:40. Hmm.
> Yep. 16+6=22. 4*16=64. Hdd. Bad disk. You might try writing to sector 6
I am really impressed what you can get out of those messages.
> to see if it can swap in a replacement sector. The partition table is
> in sector 0, so it should be OK.
I have no clue about that. It seems that the problem reaches far beyond
my knowledge. What do you mean?
I am very sorry for being so unaware about that stuff as in NG's on
things I am better aware of the subject I often am not amused about the
same questions returning all the time, but I had no clue how to figure
it out, even google didn't seem to find the right thing. So I feel sorry
for wasting your time, but I am quite nervous as there is some not
unimportant but not yet backed up data on the drive.
t
[1]
gosingen:~ # dd if=/dev/hdd > /dev/null
dd: reading `/dev/hdd': Input/output error
0+0 records in
0+0 records out
gosingen:~ # strace dd if=/dev/hdd > /dev/null
execve("/bin/dd", ["dd", "if=/dev/hdd"], [/* 42 vars */]) = 0
uname({sys="Linux", node="gosingen", ...}) = 0
brk(0) = 0x804fc64
open("/etc/ld.so.preload", O_RDONLY) = -1 ENOENT (No such file or
directory)
open("/etc/ld.so.cache", O_RDONLY) = 3
fstat64(3, {st_mode=S_IFREG|0644, st_size=20471, ...}) = 0
old_mmap(NULL, 20471, PROT_READ, MAP_PRIVATE, 3, 0) = 0x40017000
close(3) = 0
open("/lib/libc.so.6", O_RDONLY) = 3
read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\3\0\1\0\0\0\330\332"...,
1024) = 1024
fstat64(3, {st_mode=S_IFREG|0755, st_size=1394302, ...}) = 0
old_mmap(NULL, 1210880, PROT_READ|PROT_EXEC, MAP_PRIVATE, 3, 0) = 0x4001c000
mprotect(0x40139000, 43520, PROT_NONE) = 0
old_mmap(0x40139000, 28672, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED,
3, 0x11c000) = 0x40139000
old_mmap(0x40140000, 14848, PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x40140000
close(3) = 0
munmap(0x40017000, 20471) = 0
brk(0) = 0x804fc64
brk(0x804fc8c) = 0x804fc8c
brk(0x8050000) = 0x8050000
open("/usr/share/locale/locale.alias", O_RDONLY) = -1 ENOENT (No such
file or directory)
open("/usr/lib/locale/en_US/LC_CTYPE", O_RDONLY) = -1 ENOENT (No such
file or directory)
open("/usr/lib/locale/en/LC_CTYPE", O_RDONLY) = -1 ENOENT (No such file
or directory)
close(0) = 0
open("/dev/hdd", O_RDONLY|O_LARGEFILE) = 0
rt_sigaction(SIGINT, NULL, {SIG_DFL}, 8) = 0
rt_sigaction(SIGINT, {0x804945c, [], 0x4000000}, NULL, 8) = 0
rt_sigaction(SIGQUIT, NULL, {SIG_DFL}, 8) = 0
rt_sigaction(SIGQUIT, {0x804945c, [], 0x4000000}, NULL, 8) = 0
rt_sigaction(SIGPIPE, NULL, {SIG_DFL}, 8) = 0
rt_sigaction(SIGPIPE, {0x804945c, [], 0x4000000}, NULL, 8) = 0
rt_sigaction(SIGUSR1, NULL, {SIG_DFL}, 8) = 0
rt_sigaction(SIGUSR1, {0x80494c0, [], 0x4000000}, NULL, 8) = 0
brk(0x8053000) = 0x8053000
brk(0x8055000) = 0x8055000
read(0, 0x8050000, 512) = -1 EIO (Input/output error)
write(2, "dd: ", 4dd: ) = 4
write(2, "reading `/dev/hdd\'", 18reading `/dev/hdd') = 18
write(2, ": Input/output error", 20: Input/output error) = 20
write(2, "\n", 1
) = 1
write(2, "0+0 records in\n", 150+0 records in
) = 15
write(2, "0+0 records out\n", 160+0 records out
) = 16
close(0) = 0
close(1) = 0
_exit(2) = ?
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