On 4/2/25 15:40, Naveen Kumar P wrote: > Questions: > 1. What could cause periodic WRITE DMA timeouts followed by link resets? The drive not responding (drive failing for whatever reasons) > 2. Could this be a hardware-related issue (e.g., cabling, drive aging) > or a kernel bug? It always can be a bug, but it looks like this is with a kernel version 4.4, which is really old. Please try with the latest kernel. We do not debug older kernels. Hardware (SSD) failing is more likely though. Your SSD is being operated with NCQ turned off: ata2.00: FORCE: horkage modified (noncq) which indicates that it is somewhat buggy to start with... > 3. What additional debugging steps or kernel parameters would you > recommend to further diagnose this issue? Try latest stable kernel (6.14). But I suspect you will see the same issue. > > Complete dmesg log is attached to this email. > I appreciate any guidance you can provide. Please let me know if > further logs or details are required. The errors you see are timeouts. So it seems that your SSD is simply not responding. This could thus be a hardware problem with your drive. If you can, try testing with another (newer) SSD ? -- Damien Le Moal Western Digital Research