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-rw-r--r--pkg/sentry/syscalls/linux/sys_sysinfo.go12
1 files changed, 8 insertions, 4 deletions
diff --git a/pkg/sentry/syscalls/linux/sys_sysinfo.go b/pkg/sentry/syscalls/linux/sys_sysinfo.go
index 674d341b6..6320593f0 100644
--- a/pkg/sentry/syscalls/linux/sys_sysinfo.go
+++ b/pkg/sentry/syscalls/linux/sys_sysinfo.go
@@ -26,8 +26,12 @@ func Sysinfo(t *kernel.Task, args arch.SyscallArguments) (uintptr, *kernel.Sysca
addr := args[0].Pointer()
mf := t.Kernel().MemoryFile()
- mf.UpdateUsage()
- _, totalUsage := usage.MemoryAccounting.Copy()
+ mfUsage, err := mf.TotalUsage()
+ if err != nil {
+ return 0, nil, err
+ }
+ memStats, _ := usage.MemoryAccounting.Copy()
+ totalUsage := mfUsage + memStats.Mapped
totalSize := usage.TotalMemory(mf.TotalSize(), totalUsage)
memFree := totalSize - totalUsage
if memFree > totalSize {
@@ -37,12 +41,12 @@ func Sysinfo(t *kernel.Task, args arch.SyscallArguments) (uintptr, *kernel.Sysca
// Only a subset of the fields in sysinfo_t make sense to return.
si := linux.Sysinfo{
- Procs: uint16(len(t.PIDNamespace().Tasks())),
+ Procs: uint16(t.Kernel().TaskSet().Root.NumTasks()),
Uptime: t.Kernel().MonotonicClock().Now().Seconds(),
TotalRAM: totalSize,
FreeRAM: memFree,
Unit: 1,
}
- _, err := si.CopyOut(t, addr)
+ _, err = si.CopyOut(t, addr)
return 0, nil, err
}