provide more verbose logging when VGetVolumeByVp_r fails

FSYNC_com_VolOff() commits sepuku when VGetVolumeByVp_r() fails to return
a heavyweight ref to the volume.  This small patch provides more detailed
debugging information so we have a better idea why VGetVolumeByVp_r failed.

Reviewed-on: http://gerrit.openafs.org/2969
Reviewed-by: Andrew Deason <adeason@sinenomine.net>
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Derrick Brashear <shadow@dementia.org>
(cherry picked from commit 3f0c08ad93bf98fbe64d5714649d675712410cc9)

Change-Id: Ieebbf65b1764304f0b8e38bb32f0e4f61c332932
Reviewed-on: http://gerrit.openafs.org/3620
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Derrick Brashear <shadow@dementia.org>

diff --git a/src/vol/fssync-server.c b/src/vol/fssync-server.c
index 9ed8be83bff85bada99a82de6f0328a992280088..3254034dd9925d5663606bf96bb614d01ea43982 100644 (file)
--- a/src/vol/fssync-server.c
+++ b/src/vol/fssync-server.c
@@ -998,8 +998,8 @@ FSYNC_com_VolOff(FSSYNC_VolOp_command * vcom, SYNC_response * res)
                 break;
             }
 
-           Log("FSYNC_com_VolOff: failed to get heavyweight reference to volume %u\n",
-               vcom->vop->volume);
+           Log("FSYNC_com_VolOff: failed to get heavyweight reference to volume %u (state=%u, flags=0x%x)\n",
+               vcom->vop->volume, V_attachState(vp), V_attachFlags(vp));
            res->hdr.reason = FSYNC_VOL_PKG_ERROR;
            goto deny;
        } else if (nvp != vp) {