git: kernel - Concurrent fork/exec (2)

Matthew Dillon dillon at
Sun Oct 13 11:00:03 PDT 2013

commit 61dac052d2182bc5593ce2d091ea43b7541477b7
Author: Matthew Dillon <dillon at>
Date:   Sun Oct 13 10:48:57 2013 -0700

    kernel - Concurrent fork/exec (2)
    * Fix bug in vm_fault() path that can cause a token live lock.
      When taking a write fault first_shared must be set to 0
      because the fault might involve calling swap_pager_unswapped(),
      which currently requires an exclusive VM object lock.

Summary of changes:
 sys/vm/vm_fault.c | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)

DragonFly BSD source repository

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