diff options
| author | Andrei Vagin <avagin@google.com> | 2020-11-09 12:13:13 -0800 |
|---|---|---|
| committer | gVisor bot <gvisor-bot@google.com> | 2020-11-09 12:15:14 -0800 |
| commit | cbca5b2edde0920309029a0c591f28ce65cdad70 (patch) | |
| tree | 01f580977a1385e190b4f0d04e8d0d61d4433ea3 /pkg/sentry/fsimpl/sys | |
| parent | d4e0b829e44356973e56d9fafa1cf43bb87a9ae0 (diff) | |
Print a debug message if /sys/kernel/debug/kcov is available
This will help to debug:
https://syzkaller.appspot.com/bug?id=0d717bd7028dceeb4b38f09aab2841c398b41d81
PiperOrigin-RevId: 341458715
Diffstat (limited to 'pkg/sentry/fsimpl/sys')
| -rw-r--r-- | pkg/sentry/fsimpl/sys/sys.go | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/pkg/sentry/fsimpl/sys/sys.go b/pkg/sentry/fsimpl/sys/sys.go index 79bc3fe88..dbd9ebdda 100644 --- a/pkg/sentry/fsimpl/sys/sys.go +++ b/pkg/sentry/fsimpl/sys/sys.go @@ -23,6 +23,7 @@ import ( "gvisor.dev/gvisor/pkg/abi/linux" "gvisor.dev/gvisor/pkg/context" "gvisor.dev/gvisor/pkg/coverage" + "gvisor.dev/gvisor/pkg/log" "gvisor.dev/gvisor/pkg/sentry/fsimpl/kernfs" "gvisor.dev/gvisor/pkg/sentry/kernel" "gvisor.dev/gvisor/pkg/sentry/kernel/auth" @@ -126,6 +127,7 @@ func kernelDir(ctx context.Context, fs *filesystem, creds *auth.Credentials) ker // keep it in sys. var children map[string]kernfs.Inode if coverage.KcovAvailable() { + log.Debugf("Set up /sys/kernel/debug/kcov") children = map[string]kernfs.Inode{ "debug": fs.newDir(ctx, creds, linux.FileMode(0700), map[string]kernfs.Inode{ "kcov": fs.newKcovFile(ctx, creds), |