What described in 343371 was another problem and I had that one too... I'm not too lucky...
I resolved it adding my hd (WDC WD3200BEVT-22ZCT0) in the NCQ blacklist in drivers/ata/libata-core.c and now I can read very big files from the disk without any problem... However, the visible slowdown using cfq on some devices remain, with high IO wait and high elapsed (from the start to the end of the write). -- elevator=cfq (default) cause starvation https://bugs.launchpad.net/bugs/381300 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
