Assembly.Load(buff) when buff is loaded from internal storage fails if done after the read

[Ellerbach]

Library/API/IoT binding

System.Reflection.Assembly

Visual Studio version

VS2022

.NET nanoFramework extension version

2022.1.0.21

Target name(s)

ESP32 REV 0 with and without PSRAM

Firmware version

1.7.4-preview.33

Device capabilities

System Information
HAL build info: nanoCLR running @ ESP32 built with ESP-IDF v4.4
Target: ESP32
Platform: ESP32

Firmware build Info:
Date: Feb 14 2022
Type: MinSizeRel build, chip rev. >= 0, support for PSRAM
CLR Version: 1.7.4.33
Compiler: GNU ARM GCC v8.4.0

OEM Product codes (vendor, model, SKU): 0, 0, 0

Serial Numbers (module, system):
00000000000000000000000000000000
0000000000000000

Target capabilities:
Has nanoBooter: NO
IFU capable: NO
Has proprietary bootloader: YES

AppDomains:

Assemblies:

Native Assemblies:
mscorlib v100.5.0.16, checksum 0xE7505F22
nanoFramework.Runtime.Native v100.0.9.0, checksum 0x109F6F22
nanoFramework.Hardware.Esp32 v100.0.7.3, checksum 0xBE7FF253
nanoFramework.Hardware.Esp32.Rmt v100.0.3.0, checksum 0x9A53BB44
nanoFramework.Devices.OneWire v100.0.3.4, checksum 0xA5C172BD
nanoFramework.Networking.Sntp v100.0.4.4, checksum 0xE2D9BDED
nanoFramework.ResourceManager v100.0.0.1, checksum 0xDCD7DF4D
nanoFramework.System.Collections v100.0.0.1, checksum 0x5A31313D
nanoFramework.System.Text v100.0.0.1, checksum 0x8E6EB73D
nanoFramework.Runtime.Events v100.0.8.0, checksum 0x0EAB00C9
EventSink v1.0.0.0, checksum 0xF32F4C3E
System.IO.FileSystem v1.0.0.0, checksum 0x210D05B1
System.Math v100.0.5.4, checksum 0x46092CB1
System.Net v100.1.4.0, checksum 0x5B533478
Windows.Devices.Adc v100.1.3.3, checksum 0xCA03579A
System.Device.Adc v100.0.0.0, checksum 0xE5B80F0B
System.Device.Dac v100.0.0.6, checksum 0x02B3E860
System.Device.Gpio v100.1.0.4, checksum 0xB6D0ACC1
Windows.Devices.Gpio v100.1.2.2, checksum 0xC41539BE
Windows.Devices.I2c v100.2.0.2, checksum 0x79EDBF71
System.Device.I2c v100.0.0.1, checksum 0xFA806D33
Windows.Devices.Pwm v100.1.3.3, checksum 0xBA2E2251
System.Device.Pwm v100.1.0.4, checksum 0xABF532C3
Windows.Devices.SerialCommunication v100.1.1.2, checksum 0x34BAF06E
System.IO.Ports v100.1.3.0, checksum 0xA67E6317
Windows.Devices.Spi v100.1.4.2, checksum 0x360239F1
System.Device.Spi v100.1.0.0, checksum 0x48031DC5
System.Device.WiFi v100.0.6.3, checksum 0x5C9E06C4
Windows.Storage v100.0.2.0, checksum 0x954A4192

++++++++++++++++++++++++++++++++
++ Memory Map ++
++++++++++++++++++++++++++++++++
Type Start Size
++++++++++++++++++++++++++++++++
RAM 0x3f80086c 0x003b0000
FLASH 0x00000000 0x00400000

+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
++ Flash Sector Map ++
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
Region Start Blocks Bytes/Block Usage
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
0 0x00010000 1 0x1A0000 nanoCLR
1 0x001B0000 1 0x1F0000 Deployment
2 0x003C0000 1 0x040000 Configuration

+++++++++++++++++++++++++++++++++++++++++++++++++++
++ Storage Usage Map ++
+++++++++++++++++++++++++++++++++++++++++++++++++++
Start Size (kB) Usage
+++++++++++++++++++++++++++++++++++++++++++++++++++
0x003C0000 0x040000 (256kB) Configuration
0x00010000 0x1A0000 (1664kB) nanoCLR
0x001B0000 0x1F0000 (1984kB) Deployment

Deployment Map
Empty

Description

When loading an assembly stored in the internal memory I:, the Assembly.Load below fails if no Thread.Sleep is placed:

            using FileStream fspe = new FileStream(file, FileMode.Open, FileAccess.Read);
            Debug.WriteLine($"{file}: {fspe.Length}");
            var buff = new byte[fspe.Length];
            fspe.Read(buff, 0, buff.Length);
            var ass = Assembly.Load(buff);
            // This creates an exception

Exception created:

    ++++ Exception System.Exception - CLR_E_FAIL (1) ++++
    ++++ Message: 
    ++++ System.Reflection.Assembly::Load [IP: 0000] ++++
    ++++ Program+<>c__DisplayClass0_0::<<Main>$>g__LoadAssemblies|2 [IP: 0072] ++++
    ++++ Program::<Main>$ [IP: 003f] ++++

This actually works:

            using FileStream fspe = new FileStream(file, FileMode.Open, FileAccess.Read);
            Debug.WriteLine($"{file}: {fspe.Length}");
            var buff = new byte[fspe.Length];
            fspe.Read(buff, 0, buff.Length);
            Thread.Sleep(1);
            var ass = Assembly.Load(buff);

How to reproduce

1. Create code to save an assembly in the I: storage
2. use the code up

Expected behaviour

The Thread.Sleep should not be necessary and the Load should just work after the read

Screenshots

No response

Sample project or code

No response

Aditional information

No response

[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

[Ellerbach]

This is still valid dear bot :-)

[networkfusion]

@Ellerbach is this still valid?