New: RHEL Linux Data Corruption found with EXT4 system
https://bugzilla.kernel.org/show_bug.cgi?id=56831
Summary: RHEL Linux Data Corruption found with EXT4 system
Product: File System
Version: 2.5
Kernel Version: 2.6.32-220
Platform: All
OS/Version: Linux
Tree: Mainline
Status: NEW
Severity: blocking
Priority: P1
Component: ext4
AssignedTo: [email protected]
ReportedBy: [email protected]
CC: [email protected]
Regression: No
The attached file when compiled on a 32GB Mem system, gives a data corruption if run with number of threads greater than 15
How to run:
1. compile: # gcc random_multi_write_read.c -o test -lpthread
2. Usage: # ./test <file path> <no. of threads>
3. Run: # ./test file_1 15
Sample Output:
Starting 15 write threads to file_1 at different offsets and write sizes... Parallelly reading the file for any data corruption...
DATA CORRUPTION HIT
Actual: '', Expected: 'K'd
, start:4581061500, end:5039167650
...
For More info, refer file "V_loop<%d>char<%c>" which gets created newly to capture the corrupted data as soon as corruption is hit.
Test system details:
#CPUS: 2
#CORES: 6
SYSTEM MEMORY: 15 GB
SWAP MEMORY: 17 GB
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[Bug 56831] RHEL Linux Data Corruption found with EXT4 system
https://bugzilla.kernel.org/show_bug.cgi?id=56831
--- Comment #1 from [email protected] 2013-04-19 13:42:27 --- Created an attachment (id=99321)
--> (https://bugzilla.kernel.org/attachment.cgi?id=99321)
File "random_multi_write_read.c" gives data corruption on ext4
Signature · 3 lines
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[Bug 56831] RHEL Linux Data Corruption found with EXT4 system
In reply to [email protected]https://bugzilla.kernel.org/show_bug.cgi?id=56831
Alan <[email protected]> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |[email protected]
--- Comment #2 from Alan <[email protected]> --- 2.6.32 is obsolete, please take this up with your Red Hat support
Signature · 2 lines
You are receiving this mail because: You are watching the assignee of the bug.
[Bug 56831] RHEL Linux Data Corruption found with EXT4 system
In reply to [email protected]https://bugzilla.kernel.org/show_bug.cgi?id=56831
Alan <[email protected]> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution|--- |CODE_FIXSignature · 2 lines
You are receiving this mail because: You are watching the assignee of the bug.
[Bug 56831] RHEL Linux Data Corruption found with EXT4 system
In reply to [email protected]https://bugzilla.kernel.org/show_bug.cgi?id=56831
Alan <[email protected]> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|RESOLVED |CLOSED
Resolution|CODE_FIX |OBSOLETESignature · 2 lines
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