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-rw-r--r--executor/executor_bsd.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/executor/executor_bsd.h b/executor/executor_bsd.h
index a9440acec..d3ef16bce 100644
--- a/executor/executor_bsd.h
+++ b/executor/executor_bsd.h
@@ -74,7 +74,7 @@ static void cover_open(cover_t* cov, bool extra)
cover_size = (256 << 10); // maximum size
struct kcov_ioc_remote_attach args;
args.subsystem = KCOV_REMOTE_VHCI;
- args.id = procid + 1; // port number
+ args.id = KCOV_REMOTE_VHCI_ID(procid, 1); // first port
if (ioctl(cov->fd, KCOV_IOC_REMOTE_ATTACH, &args))
fail("ioctl remote attach failed");
} else {