git: DragonFly_RELEASE_3_6 kernel - Fix vn_syncer_add panic with UFS

Matthew Dillon dillon at
Tue Nov 5 14:50:13 PST 2013

commit 00b0e039656a19ae9b6e013c90d49904f322301e
Author: Matthew Dillon <dillon at>
Date:   Tue Nov 5 14:46:00 2013 -0800

    kernel - Fix vn_syncer_add panic with UFS
    * The new VONWORKLST requirements were expanded to include VOBJDIRTY
      for both the standard syncer and the new syncer.  There was a path
      in the VM system which could clear VOBJDIRTY but failed to resynchronize
      VONWORKLST which could cause UFS to accidently leave a vnode on the
      syncer list after reclamation, causing a crash.
    * Fix the VM path.
    Reported-by: David Shao

Summary of changes:
 sys/kern/vfs_subr.c |  4 ++++
 sys/vm/vm_object.c  | 23 +++++++++++++++++------
 2 files changed, 21 insertions(+), 6 deletions(-)

DragonFly BSD source repository

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