If same device is mounted in multiple places like Vyatta does
with their installation, then VSphere snapshot would fail.
The fix is to ignore -EBUSY which means filesystem is already frozen.
See:
https://bugzilla.vyatta.com/show_bug.cgi?id=8108
http://sourceforge.net/tracker/?func=detail&aid=3485535&group_id=204462&atid=989708
Patch against 8.8.1 but same issue exists in 8.8.2
---
lib/syncDriver/syncDriverLinux.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/lib/syncDriver/syncDriverLinux.c b/lib/syncDriver/syncDriverLinux.c
index 794a4b4..32c1a11 100644
--- a/lib/syncDriver/syncDriverLinux.c
+++ b/lib/syncDriver/syncDriverLinux.c
@@ -165,12 +165,13 @@ LinuxDriver_Freeze(const char *paths,
if (ioctl(fd, FIFREEZE) == -1) {
/*
* If the ioctl does not exist, Linux will return ENOTTY. If it's not
- * supported on the device, we get EOPNOTSUPP. Ignore the latter,
+ * supported on the device, we get EOPNOTSUPP. If filesystem is
already
+ * frozen, then return EBUSY. Ignore the latter two,
* since freezing does not make sense for all fs types, and some
* Linux fs drivers may not have been hooked up in the running kernel.
*/
close(fd);
- if (errno != EOPNOTSUPP) {
+ if (errno != EOPNOTSUPP && errno != EBUSY) {
Debug(LGPFX "ioctl failed: %d (%s)\n", errno, strerror(errno));
err = first ? SD_UNAVAILABLE : SD_ERROR;
break;
--
1.7.10
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