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Diffstat (limited to 'pkg/sentry/fsimpl/proc/tasks_files.go')
-rw-r--r--pkg/sentry/fsimpl/proc/tasks_files.go10
1 files changed, 7 insertions, 3 deletions
diff --git a/pkg/sentry/fsimpl/proc/tasks_files.go b/pkg/sentry/fsimpl/proc/tasks_files.go
index 92007df81..e5f13b69e 100644
--- a/pkg/sentry/fsimpl/proc/tasks_files.go
+++ b/pkg/sentry/fsimpl/proc/tasks_files.go
@@ -272,12 +272,16 @@ func (*meminfoData) Generate(ctx context.Context, buf *bytes.Buffer) error {
inactiveFile := file - activeFile
fmt.Fprintf(buf, "MemTotal: %8d kB\n", totalSize/1024)
- memFree := (totalSize - totalUsage) / 1024
+ memFree := totalSize - totalUsage
+ if memFree > totalSize {
+ // Underflow.
+ memFree = 0
+ }
// We use MemFree as MemAvailable because we don't swap.
// TODO(rahat): When reclaim is implemented the value of MemAvailable
// should change.
- fmt.Fprintf(buf, "MemFree: %8d kB\n", memFree)
- fmt.Fprintf(buf, "MemAvailable: %8d kB\n", memFree)
+ fmt.Fprintf(buf, "MemFree: %8d kB\n", memFree/1024)
+ fmt.Fprintf(buf, "MemAvailable: %8d kB\n", memFree/1024)
fmt.Fprintf(buf, "Buffers: 0 kB\n") // memory usage by block devices
fmt.Fprintf(buf, "Cached: %8d kB\n", (file+snapshot.Tmpfs)/1024)
// Emulate a system with no swap, which disables inactivation of anon pages.