Public bug reported: I recently upgraded from 9.10 to 10.10, and am copying some files from a RAID-0 to a single disk in preparation of creating a RAID-5. Smaller files are copied, but when copying larger files ~50 GB system freezes during copying, does not return control, does not respond to keyboard/mouse or ssh requests and does not complete copying. This happens when copying via Nautilus or using cp.
Started copying and switched TTYs to run top, and at point of freezing kswap takes 100% of CPU time. No error messages are logged to dmesg, so it took me a while to find that if I switched TTYs before freezing then it will print to my console: BUG: soft lockup - CPU#0 stuck for 61s! [kswapd0:128] And then some hex code, but since I am typing this by hand I will include it if it is helpful. A search through the Internet has found this on Redhat's bugzilla, and comments indicate that they have seen it happen on Ubuntu 10.10: https://bugzilla.redhat.com/show_bug.cgi?id=649694 What should happen - copying should complete. Has this patch been incorporated, and does anyone have any ideas on why this could be happening? ** Affects: linux (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/687994 Title: System freezes when copying large files -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
