crash on device disconnect

[hramrach]

Describe the bug crash when device is disconnected.

To Reproduce Run OpenHantek, plug in device, wait for data display, unplug device.

Expected behavior No crash - clean shutdown or wait for device reconnect.

Screenshots

OpenHantek6022 (3.3.1)
Graphic: 4.2 (Compatibility Profile) Mesa 22.2.4 - GLSL version 1.20
bulkReadMulti: Getting sample data failed:  "Input/Output Error"
controlWrite: Getting sample data failed:  "Input/Output Error"
controlWrite: Getting sample data failed:  "Input/Output Error"
controlWrite: Getting sample data failed:  "Input/Output Error"
controlWrite: Getting sample data failed:  "Input/Output Error"
controlWrite: Getting sample data failed:  "Input/Output Error"
controlWrite: Getting sample data failed:  "Input/Output Error"
controlWrite: Getting sample data failed:  "Input/Output Error"
controlWrite: Getting sample data failed:  "Input/Output Error"
controlWrite: Getting sample data failed:  "Input/Output Error"
controlWrite: Getting sample data failed:  "Input/Output Error"
controlWrite: Getting sample data failed:  "Input/Output Error"
controlWrite: Getting sample data failed:  "Input/Output Error"
controlWrite: Getting sample data failed:  "Input/Output Error"
controlWrite: Getting sample data failed:  "Input/Output Error"
controlWrite: Getting sample data failed:  "Input/Output Error"
controlWrite: Getting sample data failed:  "Input/Output Error"
controlWrite: Getting sample data failed:  "Input/Output Error"
controlWrite: Getting sample data failed:  "No such device (it may have been disconnected)"
OpenHantek6022 controlWrite: stop sampling failed:  "No such device (it may have been disconnected)"
controlWrite: stop sampling failed:  "No such device (it may have been disconnected)"
has stopped after 2 s
malloc(): unaligned tcache chunk detected
Aborted (core dumped)

Computer environment (please complete the following information):

• OpenHantek version: 3.3.1
• OS: Linux
• Distribution, version: openSUSE Tumbleweed (amd64)
• Video hardware: Mesa Intel(R) HD Graphics 2500 (IVB GT1)
• OpenGL version: 4.2 (Core Profile) Mesa 22.2.4
• Qt version: libQt5Core5-5.15.7+kde167-2.1.x86_64
• C++ compiler version: gcc (SUSE Linux) 12.2.1 20221020

Scope device (please complete the following information):

• Device Hantek 6022BL
• Program top line OpenHantek6022 (3.3.1) - Device DSO-6022BL (FW0210)
• Input signal: any
• Probe setting: any

[Ho-Ro]

WONTFIX Please check #337

[hramrach]

It potentially uses up disk space when it crashes rather than exiting cleanly.

[Ho-Ro]

Please elaborate.

[hramrach]

Aborted (core dumped)

That means the core is stored somewhere.

[Ho-Ro]

Ok, understood. Debian does not dump the core, so there should also be a solution for openSUSE.

[hramrach]

The universal solution is for the program to not crash in the first place.

[Ho-Ro]

The best solution would be to keep the USB connection untouched. If you cannot ensure this, either do not use the program or modify it according to your needs. EOD