RE: [BUG] Possible silent data corruption in filesystems/page cache

Hi Ted, Thanks for your explanation which convinced me. Regards, Mariusz. -Original Message- From: Theodore Ts'o [mailto:ty...@mit.edu] Sent: Monday, June 6, 2016 15:36 To: Barczak, Mariusz Cc: Andreas Dilger ; Andrew Morton ; Jens Axboe ; Alexander Viro ; linux...@kvack.org; lin

RE: [BUG] Possible silent data corruption in filesystems/page cache

LBA on which IO error occurred, old data content is fetched. We did own fault injector in order to do error in specific condition described above. Regards, Mariusz. -Original Message- From: Andreas Dilger [mailto:adil...@dilger.ca] Sent: Thursday, June 2, 2016 21:32 To: Barczak, Mariusz

[BUG] Possible silent data corruption in filesystems/page cache

Hi We run data validation test for buffered workload on filesystems: ext3, ext4, and XFS. In context of flushing page cache block device driver returned IO error. After dropping page cache our validation tool reported data corruption. We provided a simple patch in order to inject IO error in devi