diff --git a/zircon/system/core/devmgr/devcoordinator/device.cpp b/zircon/system/core/devmgr/devcoordinator/device.cpp
index abac8991e196946a37b9153a4921e6ee0e45a66a..14c26330150bea91ef1466d0231b6b67a1dd699d 100644
--- a/zircon/system/core/devmgr/devcoordinator/device.cpp
+++ b/zircon/system/core/devmgr/devcoordinator/device.cpp
@@ -536,7 +536,9 @@ static zx_status_t fidl_BindDevice(void* ctx, const char* driver_path_data, size
         log(ERROR, "devcoordinator: rpc: bind-device '%s' forbidden in suspend\n", dev->name().data());
         return fuchsia_device_manager_CoordinatorBindDevice_reply(txn, ZX_ERR_BAD_STATE);
     }
-    log(RPC_IN, "devcoordinator: rpc: bind-device '%s'\n", dev->name().data());
+    // Made this log at ERROR instead of RPC_IN to help debug DNO-492; we should
+    // take it back down when done with that bug.
+    log(ERROR, "devcoordinator: rpc: bind-device '%s'\n", dev->name().data());
     zx_status_t status = dev->coordinator->BindDevice(dev, driver_path, false /* new device */);
     return fuchsia_device_manager_CoordinatorBindDevice_reply(txn, status);
 }
diff --git a/zircon/system/core/devmgr/devhost/devhost.cpp b/zircon/system/core/devmgr/devhost/devhost.cpp
index e6a51b30e2f435f65f8c261cbce082670fcabcc7..bef9e0a18989f8fee24db1bcb59b294288f98ef2 100644
--- a/zircon/system/core/devmgr/devhost/devhost.cpp
+++ b/zircon/system/core/devmgr/devhost/devhost.cpp
@@ -549,6 +549,11 @@ static zx_status_t fidl_BindDriver(void* raw_ctx, const char* driver_path_data,
     zx::vmo driver_vmo(raw_driver_vmo);
     fbl::StringPiece driver_path(driver_path_data, driver_path_size);
 
+    // TODO: added to help debug DNO-492, remove when done
+    if (driver_path == "/boot/driver/zxcrypt.so") {
+        log(ERROR, "devhost[%s] bind zxcrypt\n", ctx->path);
+    }
+
     // TODO: api lock integration
     log(RPC_IN, "devhost[%s] bind driver '%.*s'\n", ctx->path, static_cast<int>(driver_path_size),
         driver_path_data);
diff --git a/zircon/system/core/devmgr/devhost/rpc-server.cpp b/zircon/system/core/devmgr/devhost/rpc-server.cpp
index 99e3f86eb2daf409cb9f973c934fb6a7bd88acb6..ead3d34f2e5b2595513f30b74aeb9fcaa46de212 100644
--- a/zircon/system/core/devmgr/devhost/rpc-server.cpp
+++ b/zircon/system/core/devmgr/devhost/rpc-server.cpp
@@ -23,6 +23,7 @@
 #include <zircon/device/vfs.h>
 
 #include <zircon/processargs.h>
+#include <zircon/status.h>
 #include <zircon/syscalls.h>
 #include <zircon/types.h>
 
@@ -583,10 +584,16 @@ static zx_status_t fidl_DeviceControllerBind(void* ctx, const char* driver_data,
     memcpy(drv_libname, driver_data, driver_count);
     drv_libname[driver_count] = 0;
 
+    // TODO(DNO-492): additional logging for debugging what looks like a
+    // deadlock.  Remove once bug is resolved.
+    printf("DeviceControllerBind running: %s\n", drv_libname);
     // TODO(ZX-3431): We ignore the status from device_bind() for
     // bug-compatibility reasons.  Once this bug is resolved, we can return the
     // actual status.
     __UNUSED zx_status_t status = device_bind(conn->dev, drv_libname);
+    // TODO(DNO-492): additional logging for debugging what looks like a
+    // deadlock.  Remove once bug is resolved.
+    printf("DeviceControllerBind finished: %s %s\n", drv_libname, zx_status_get_string(status));
     return fuchsia_device_ControllerBind_reply(txn, ZX_OK);
 }