#188 migration stuck in move_data_wait_for_state_change()

closed-fixed
Roger Tsang
5
2010-03-13
2009-03-28
Roger Tsang
No

From John Hughes:

With current (March 17th) CVS I'm seeing a problem migrating processes from time to time.

Running my zz-migrate-cruelty script (attached) it sometimes seems to get stuck in move_data_wait_for_state_change

Stack trace shows:
schedule
move_data_wait_for_state_change
ssi_quiesce_movement
do_signal
do_notify_resume
work_notifysig

Discussion

  • Roger Tsang
    Roger Tsang
    2009-03-28

     
    Attachments
  • Roger Tsang
    Roger Tsang
    2009-05-11

    Looks like an issue with SMP synchronization (or lack of)...

    With my latest changes (not yet in CVS) the zz-migrate-cruelty script no longer gets stuck. I tested successfully for 10+ minutes on two-node cluster.

     
  • Roger Tsang
    Roger Tsang
    2009-05-11

    • assigned_to: nobody --> rogertsang
    • status: open --> open-accepted
     
  • Roger Tsang
    Roger Tsang
    2009-10-27

    checked-in

     
  • Roger Tsang
    Roger Tsang
    2009-10-27

    • status: open-accepted --> open-fixed
     
  • Roger Tsang
    Roger Tsang
    2010-03-13

    • status: open-fixed --> closed-fixed