perierga binaries
Alexandros Papadopoulos
apapadop at alumni.cmu.edu
Tue Jan 4 11:39:31 EET 2005
On Tuesday 04 January 2005 11:06, Antonis Valakas wrote:
> >To epanefera, kai einai idio me to binary pou efera apo to allo
> >mhxanhma. Dhladh diaforetiko MD5 apo to binary poy yphrxe sth 8esh
> > tou (kai petage segfaults), alla idio bytecount kai strings...
> >helios:~# ls -l /usr/bin/perl*
> >-rwxr-xr-x 1 root root 1057324 Jan 3 19:07 /usr/bin/perl
> >-rwxr-xr-x 2 root root 1057324 Oct 24 19:37 /usr/bin/perl5.8.4
> >-rwxr-xr-x 2 root root 1057324 Oct 24 19:37 /usr/bin/perl_SUSPECT
> ><snip>
> >
> >-A
>
> Δοκίμασε:
>
> # cmp -l <suspect binary> <vanilla binary>
>
> και δες αν κάποιο συνεχόμενο byte block έχει διαφορά. Πιθανόν να
> είναι filesystem corruption ή disk failure (οι ΑΤΑ δίσκοι δεν έχουν
> data checksumming όπως οι SCSI).
Bingo!
helios:~# cmp -l /usr/bin/perl /usr/bin/perl_SUSPECT
1055193 377 337
helios:~# cmp -l /usr/bin/find /usr/bin/find_SUSPECT
49561 377 337
helios:~# cmp -l /bin/tar /bin/tar_SUSPECT
163993 377 337
Τι μας λέει αυτό;
Το filesystem είναι ext3 πάνω σε software RAID-1, με τη σειρά του πάνω
σε δύο πανομοιότυπους δίσκους Serial ATA. Έχω κάνει fsck.ext3 -f -V το
filesystem και δεν ανέφερε κάποιο πρόβλημα. Εκτός αυτού, έχω κοιτάξει
τους δίσκους με smartctl -t long και ενώ αναφέρουν κάποια (όχι
critical) errors, το overalll health αναφέρεται ως ΟΚ. Κάνω attach το
output του smartctl -a /dev/hd[e|g] σε περίπτωση που ξέρει κανείς κατά
πόσο εξηγούνται αυτά που βλέπω από τα λάθη που αναφέρονται σε επίπεδο
hardware.
Ευχαριστώ!
-Α
-------------- next part --------------
helios:~# smartctl -a /dev/hde
smartctl version 5.32 Copyright (C) 2002-4 Bruce Allen
Home page is http://smartmontools.sourceforge.net/
=== START OF INFORMATION SECTION ===
Device Model: Maxtor 6Y080M0
Serial Number: Y3MEEM2E
Firmware Version: YAR51EW0
Device is: In smartctl database [for details use: -P show]
ATA Version is: 7
ATA Standard is: ATA/ATAPI-7 T13 1532D revision 0
Local Time is: Tue Jan 4 11:35:06 2005 EET
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: (0x82) Offline data collection activity
was completed without error.
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: ( 182) 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.
No General Purpose Logging support.
Short self-test routine
recommended polling time: ( 2) minutes.
Extended self-test routine
recommended polling time: ( 40) minutes.
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
3 Spin_Up_Time 0x0027 194 193 063 Pre-fail Always - 12908
4 Start_Stop_Count 0x0032 253 253 000 Old_age Always - 103
5 Reallocated_Sector_Ct 0x0033 253 253 063 Pre-fail Always - 0
6 Read_Channel_Margin 0x0001 253 253 100 Pre-fail Offline - 0
7 Seek_Error_Rate 0x000a 253 252 000 Old_age Always - 0
8 Seek_Time_Performance 0x0027 251 244 187 Pre-fail Always - 58202
9 Power_On_Minutes 0x0032 251 251 000 Old_age Always - 809h+18m
10 Spin_Retry_Count 0x002b 253 252 157 Pre-fail Always - 0
11 Calibration_Retry_Count 0x002b 253 252 223 Pre-fail Always - 0
12 Power_Cycle_Count 0x0032 253 253 000 Old_age Always - 128
192 Power-Off_Retract_Count 0x0032 253 253 000 Old_age Always - 0
193 Load_Cycle_Count 0x0032 253 253 000 Old_age Always - 0
194 Temperature_Celsius 0x0032 253 253 000 Old_age Always - 30
195 Hardware_ECC_Recovered 0x000a 253 252 000 Old_age Always - 5001
196 Reallocated_Event_Count 0x0008 253 253 000 Old_age Offline - 0
197 Current_Pending_Sector 0x0008 253 253 000 Old_age Offline - 0
198 Offline_Uncorrectable 0x0008 253 253 000 Old_age Offline - 0
199 UDMA_CRC_Error_Count 0x0008 199 197 000 Old_age Offline - 2
200 Multi_Zone_Error_Rate 0x000a 253 252 000 Old_age Always - 0
201 Soft_Read_Error_Rate 0x000a 253 252 000 Old_age Always - 21
202 TA_Increase_Count 0x000a 253 252 000 Old_age Always - 0
203 Run_Out_Cancel 0x000b 253 252 180 Pre-fail Always - 0
204 Shock_Count_Write_Opern 0x000a 253 252 000 Old_age Always - 0
205 Shock_Rate_Write_Opern 0x000a 253 252 000 Old_age Always - 0
207 Spin_High_Current 0x002a 253 252 000 Old_age Always - 0
208 Spin_Buzz 0x002a 253 252 000 Old_age Always - 0
209 Offline_Seek_Performnce 0x0024 202 196 000 Old_age Offline - 0
99 Unknown_Attribute 0x0004 253 253 000 Old_age Offline - 0
100 Unknown_Attribute 0x0004 253 253 000 Old_age Offline - 0
101 Unknown_Attribute 0x0004 253 253 000 Old_age Offline - 0
SMART Error Log Version: 1
ATA Error Count: 1
CR = Command Register [HEX]
FR = Features Register [HEX]
SC = Sector Count Register [HEX]
SN = Sector Number Register [HEX]
CL = Cylinder Low Register [HEX]
CH = Cylinder High Register [HEX]
DH = Device/Head Register [HEX]
DC = Device Command Register [HEX]
ER = Error register [HEX]
ST = Status register [HEX]
Powered_Up_Time is measured from power on, and printed as
DDd+hh:mm:SS.sss where DD=days, hh=hours, mm=minutes,
SS=sec, and sss=millisec. It "wraps" after 49.710 days.
Error 1 occurred at disk power-on lifetime: 164 hours (6 days + 20 hours)
When the command that caused the error occurred, the device was in an unknown state.
After command completion occurred, registers were:
ER ST SC SN CL CH DH
-- -- -- -- -- -- --
84 51 40 40 a4 b4 e6 Error: ICRC, ABRT at LBA = 0x06b4a440 = 112501824
Commands leading to the command that caused the error were:
CR FR SC SN CL CH DH DC Powered_Up_Time Command/Feature_Name
-- -- -- -- -- -- -- -- ---------------- --------------------
ca 03 80 00 a4 b4 e6 00 00:09:00.928 WRITE DMA
ca 03 80 80 a3 b4 e6 00 00:09:00.912 WRITE DMA
ca 03 80 00 a3 b4 e6 00 00:09:00.912 WRITE DMA
ca 03 80 80 a2 b4 e6 00 00:09:00.912 WRITE DMA
ca 03 80 00 a2 b4 e6 00 00:09:00.912 WRITE DMA
SMART Self-test log structure revision number 1
Num Test_Description Status Remaining LifeTime(hours) LBA_of_first_error
# 1 Extended offline Completed without error 00% 741 -
# 2 Extended offline Interrupted (host reset) 10% 740 -
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.
-------------- next part --------------
helios:~# smartctl -a /dev/hdg
smartctl version 5.32 Copyright (C) 2002-4 Bruce Allen
Home page is http://smartmontools.sourceforge.net/
=== START OF INFORMATION SECTION ===
Device Model: Maxtor 6Y080M0
Serial Number: Y3MEEKQE
Firmware Version: YAR51EW0
Device is: In smartctl database [for details use: -P show]
ATA Version is: 7
ATA Standard is: ATA/ATAPI-7 T13 1532D revision 0
Local Time is: Tue Jan 4 11:38:14 2005 EET
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: (0x82) Offline data collection activity
was completed without error.
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: ( 182) 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.
No General Purpose Logging support.
Short self-test routine
recommended polling time: ( 2) minutes.
Extended self-test routine
recommended polling time: ( 40) minutes.
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
3 Spin_Up_Time 0x0027 203 202 063 Pre-fail Always - 10754
4 Start_Stop_Count 0x0032 253 253 000 Old_age Always - 102
5 Reallocated_Sector_Ct 0x0033 253 253 063 Pre-fail Always - 0
6 Read_Channel_Margin 0x0001 253 253 100 Pre-fail Offline - 0
7 Seek_Error_Rate 0x000a 253 252 000 Old_age Always - 0
8 Seek_Time_Performance 0x0027 250 245 187 Pre-fail Always - 43817
9 Power_On_Minutes 0x0032 251 251 000 Old_age Always - 816h+29m
10 Spin_Retry_Count 0x002b 253 252 157 Pre-fail Always - 0
11 Calibration_Retry_Count 0x002b 253 252 223 Pre-fail Always - 0
12 Power_Cycle_Count 0x0032 253 253 000 Old_age Always - 131
192 Power-Off_Retract_Count 0x0032 253 253 000 Old_age Always - 0
193 Load_Cycle_Count 0x0032 253 253 000 Old_age Always - 0
194 Temperature_Celsius 0x0032 253 253 000 Old_age Always - 46
195 Hardware_ECC_Recovered 0x000a 253 252 000 Old_age Always - 10349
196 Reallocated_Event_Count 0x0008 253 253 000 Old_age Offline - 0
197 Current_Pending_Sector 0x0008 253 253 000 Old_age Offline - 0
198 Offline_Uncorrectable 0x0008 253 253 000 Old_age Offline - 0
199 UDMA_CRC_Error_Count 0x0008 197 189 000 Old_age Offline - 10
200 Multi_Zone_Error_Rate 0x000a 253 252 000 Old_age Always - 0
201 Soft_Read_Error_Rate 0x000a 253 252 000 Old_age Always - 49
202 TA_Increase_Count 0x000a 253 252 000 Old_age Always - 0
203 Run_Out_Cancel 0x000b 253 252 180 Pre-fail Always - 1
204 Shock_Count_Write_Opern 0x000a 253 252 000 Old_age Always - 0
205 Shock_Rate_Write_Opern 0x000a 253 252 000 Old_age Always - 0
207 Spin_High_Current 0x002a 253 252 000 Old_age Always - 0
208 Spin_Buzz 0x002a 253 252 000 Old_age Always - 0
209 Offline_Seek_Performnce 0x0024 201 199 000 Old_age Offline - 0
99 Unknown_Attribute 0x0004 253 253 000 Old_age Offline - 0
100 Unknown_Attribute 0x0004 253 253 000 Old_age Offline - 0
101 Unknown_Attribute 0x0004 253 253 000 Old_age Offline - 0
SMART Error Log Version: 1
Warning: ATA error count 9 inconsistent with error log pointer 5
ATA Error Count: 9 (device log contains only the most recent five errors)
CR = Command Register [HEX]
FR = Features Register [HEX]
SC = Sector Count Register [HEX]
SN = Sector Number Register [HEX]
CL = Cylinder Low Register [HEX]
CH = Cylinder High Register [HEX]
DH = Device/Head Register [HEX]
DC = Device Command Register [HEX]
ER = Error register [HEX]
ST = Status register [HEX]
Powered_Up_Time is measured from power on, and printed as
DDd+hh:mm:SS.sss where DD=days, hh=hours, mm=minutes,
SS=sec, and sss=millisec. It "wraps" after 49.710 days.
Error 9 occurred at disk power-on lifetime: 747 hours (31 days + 3 hours)
When the command that caused the error occurred, the device was in an unknown state.
After command completion occurred, registers were:
ER ST SC SN CL CH DH
-- -- -- -- -- -- --
84 51 00 c7 b9 8a e0 Error: ICRC, ABRT at LBA = 0x008ab9c7 = 9091527
Commands leading to the command that caused the error were:
CR FR SC SN CL CH DH DC Powered_Up_Time Command/Feature_Name
-- -- -- -- -- -- -- -- ---------------- --------------------
c8 00 45 c7 b9 8a e0 00 05:09:27.296 READ DMA
ef 03 45 c7 b9 8a e0 00 05:08:01.312 SET FEATURES [Set transfer mode]
ef 03 45 c7 b9 8a e0 00 05:08:01.312 SET FEATURES [Set transfer mode]
c8 00 08 c0 b9 8a e9 00 05:09:02.112 READ DMA
c8 00 01 ff b3 8a e9 00 05:09:02.080 READ DMA
Error 8 occurred at disk power-on lifetime: 596 hours (24 days + 20 hours)
When the command that caused the error occurred, the device was in an unknown state.
After command completion occurred, registers were:
ER ST SC SN CL CH DH
-- -- -- -- -- -- --
84 51 00 ff b5 8a e0 Error: ICRC, ABRT at LBA = 0x008ab5ff = 9090559
Commands leading to the command that caused the error were:
CR FR SC SN CL CH DH DC Powered_Up_Time Command/Feature_Name
-- -- -- -- -- -- -- -- ---------------- --------------------
c8 00 45 ff b5 8a e0 00 00:08:17.456 READ DMA
ef 03 45 ff b5 8a e0 00 00:06:40.960 SET FEATURES [Set transfer mode]
ef 03 45 ff b5 8a e0 00 00:06:40.960 SET FEATURES [Set transfer mode]
c8 00 08 f8 b5 8a e9 00 00:06:36.224 READ DMA
c8 00 08 c0 b9 8a e9 00 00:06:36.208 READ DMA
Error 7 occurred at disk power-on lifetime: 489 hours (20 days + 9 hours)
When the command that caused the error occurred, the device was in an unknown state.
After command completion occurred, registers were:
ER ST SC SN CL CH DH
-- -- -- -- -- -- --
84 51 00 00 a6 65 e1 Error: ICRC, ABRT at LBA = 0x0165a600 = 23438848
Commands leading to the command that caused the error were:
CR FR SC SN CL CH DH DC Powered_Up_Time Command/Feature_Name
-- -- -- -- -- -- -- -- ---------------- --------------------
c8 da 80 00 a6 65 e1 00 00:12:12.864 READ DMA
c8 da 80 80 a5 65 e1 00 00:12:12.864 READ DMA
c8 da 80 00 a5 65 e1 00 00:12:12.864 READ DMA
c8 da 80 80 a4 65 e1 00 00:12:12.864 READ DMA
c8 da 80 00 a4 65 e1 00 00:12:12.864 READ DMA
Error 6 occurred at disk power-on lifetime: 489 hours (20 days + 9 hours)
When the command that caused the error occurred, the device was in an unknown state.
After command completion occurred, registers were:
ER ST SC SN CL CH DH
-- -- -- -- -- -- --
84 51 00 00 4b 55 e1 Error: ICRC, ABRT at LBA = 0x01554b00 = 22366976
Commands leading to the command that caused the error were:
CR FR SC SN CL CH DH DC Powered_Up_Time Command/Feature_Name
-- -- -- -- -- -- -- -- ---------------- --------------------
c8 da 80 00 4b 55 e1 00 00:11:56.400 READ DMA
c8 da 80 80 4a 55 e1 00 00:11:56.400 READ DMA
c8 da 80 00 4a 55 e1 00 00:11:56.400 READ DMA
c8 da 80 80 49 55 e1 00 00:11:56.400 READ DMA
c8 da 80 00 49 55 e1 00 00:11:56.400 READ DMA
Error 5 occurred at disk power-on lifetime: 489 hours (20 days + 9 hours)
When the command that caused the error occurred, the device was in an unknown state.
After command completion occurred, registers were:
ER ST SC SN CL CH DH
-- -- -- -- -- -- --
84 51 00 00 7e c0 e0 Error: ICRC, ABRT at LBA = 0x00c07e00 = 12615168
Commands leading to the command that caused the error were:
CR FR SC SN CL CH DH DC Powered_Up_Time Command/Feature_Name
-- -- -- -- -- -- -- -- ---------------- --------------------
c8 da 80 00 7e c0 e0 00 00:09:02.704 READ DMA
c8 da 80 80 7d c0 e0 00 00:09:02.704 READ DMA
c8 da 80 00 7d c0 e0 00 00:09:02.704 READ DMA
c8 da 80 80 7c c0 e0 00 00:09:02.704 READ DMA
c8 da 80 00 7c c0 e0 00 00:09:02.688 READ DMA
SMART Self-test log structure revision number 1
Num Test_Description Status Remaining LifeTime(hours) LBA_of_first_error
# 1 Extended offline Completed without error 00% 748 -
# 2 Extended offline Interrupted (host reset) 10% 747 -
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.
helios:~#
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