I tested with the latest upstream kernel available: 2.6.38-999-generic #201103050905 SMP Sat Mar 5 10:18:37 UTC 2011
** I found this is not specific to USB external drives. the main and only, internal drive on this machine exhibits the problem *** To test, I duplicated a ~ 13GiB directory under home, like this: /home$ cp -r paul paul.backup The latest upstream (version as above) kernel works OK Ubuntu kernel 2.6.35-22 works OK Ubuntu kernels 2.6.35-24 to 2.6.35-27 (and maybe beyond) exhibit the problem (Soft lockup) with recurring output on the console "BUG: soft lockup - CPU#0 stuck for 61s! [kswapd0:26]" as described in previous comments. ** Tags removed: needs-upstream-testing -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/696212 Title: Soft cpu lock copying files form external usb drive -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
