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: fs_ext4@xxxxxxxxxxxxxxxxxxxx ReportedBy: searchfordave@xxxxxxxxx CC: lalwanihiro@xxxxxxxxx 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 -- Configure bugmail: https://bugzilla.kernel.org/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are watching the assignee of the bug. -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
