fix: ignore 'ENOENT' (no such file directory) on mount

This fixes a race condition between `udevd` issuing ioctl `BLKRRPART` when block device is closed after partitioning/formatting and Talos trying to mount a partition. When `BLKRRPART` is issued, kernel temporarily wipes out all the in-memory partitions killing `/dev/sdX` devices until partition scan is done. Signed-off-by: Andrey Smirnov <[email protected]>
siderolabs · Mar 2, 2021 · 8ffb559 · 8ffb559
1 parent a241e9e
commit 8ffb559
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/internal/pkg/mount/mount.go b/internal/pkg/mount/mount.go
@@ -134,6 +134,9 @@ func mountRetry(f RetryFunc, p *Point, isUnmount bool) (err error) {
 			switch err {
 			case unix.EBUSY:
 				return retry.ExpectedError(err)
+			case unix.ENOENT:
+				// if udevd triggers BLKRRPART ioctl, partition device entry might disappear temporarily
+				return retry.ExpectedError(err)
 			case unix.EINVAL:
 				isMounted, checkErr := p.IsMounted()
 				if checkErr != nil {