Same here :-( After adding "libata.force=noncq" to kernel-bootparameters, the error changed to
exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0 irq_stat 0x40000001 failed command: READ DMA EXT cmd 25/00:e0:df:d7:f8/00:00:88:00:00/e0 tag 0 dma 114688 in res 51/40:00:f5:d7:f8/00:00:88:00:00/e0 Emask 0x9 (media error) status: { DRDY ERR } error: { UNC } configured for UDMA/133 EH complete when reading big files fast. I think the disaster began suddenly about two months ago. Running lucid up to date. HDs: raid5/lvm. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/550559 Title: hdd problems, failed command: READ FPDMA QUEUED -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs