diff options
| author | Andrei Vagin <avagin@google.com> | 2019-06-28 13:22:28 -0700 |
|---|---|---|
| committer | gVisor bot <gvisor-bot@google.com> | 2019-06-28 13:23:36 -0700 |
| commit | e21d49c2d82b7d109bc7c8955edea1787de59ac0 (patch) | |
| tree | 90cc6864ad5329d322387cccf2a73c48f64776e8 | |
| parent | 7c13789818ec43644c3a159cd5cad2a5aad2e26d (diff) | |
platform/ptrace: return more detailed errors
Right now, if we can't create a stub process, we will see this error:
panic: unable to activate mm: resource temporarily unavailable
It would be better to know the root cause of this "resource temporarily
unavailable".
PiperOrigin-RevId: 255656831
| -rw-r--r-- | pkg/sentry/platform/ptrace/subprocess_linux.go | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/pkg/sentry/platform/ptrace/subprocess_linux.go b/pkg/sentry/platform/ptrace/subprocess_linux.go index dc3475494..87ded0bbd 100644 --- a/pkg/sentry/platform/ptrace/subprocess_linux.go +++ b/pkg/sentry/platform/ptrace/subprocess_linux.go @@ -306,7 +306,7 @@ func (s *subprocess) createStub() (*thread, error) { arch.SyscallArgument{Value: 0}, arch.SyscallArgument{Value: 0}) if err != nil { - return nil, err + return nil, fmt.Errorf("creating stub process: %v", err) } // Wait for child to enter group-stop, so we don't stop its @@ -325,7 +325,7 @@ func (s *subprocess) createStub() (*thread, error) { arch.SyscallArgument{Value: 0}, arch.SyscallArgument{Value: 0}) if err != nil { - return nil, err + return nil, fmt.Errorf("waiting on stub process: %v", err) } childT := &thread{ |