f3probe hangs on chineese flash

[airbagi]

Hi,

I have flash drive from Ali that is declared 128Gb, but actually not. I tried to use this tool to recover actual space of the drive, but with no luck.

sudo f3probe --destructive --reset-type=1 --time-ops /dev/sda
F3 probe 7.2
Copyright (C) 2010 Digirati Internet LTDA.
This is free software; see the source for copying conditions.

WARNING: Probing normally takes from a few seconds to 15 minutes, but
         it can take longer. Please be patient.

I used several reset-types but it just show nothing.
It also does not respond on Ctrl+C keypress, only detach flash from usb to break procedure.
I waited about 12 hrs, so I think it is enough.
Because this utility does not show any progress, I can't understand its state.
Can you help me with that?

Thanks

[AltraMayor]

Hi @airbagi,

Given that Ctrl+C is not working, there's a chance that the drive is getting a system call stuck in the kernel. You can test this hypothesis by running f3probe, waiting 30 minutes (or longer) to make sure it's stuck, and calling kill -9 <F3PROBE_PID> from another terminal. You must replace <F3PROBE_PID> with the PID of the process f3probe being tested. You can get this number using pstree -p | grep f3probe.

If f3probe is not immediately interrupted after running kill - 9, a system call is stuck in the kernel. If this is the case, there's nothing that f3probe can do; this is an issue for a kernel developer. You can gather some information of what's going in the kernel with the command dmesg.

[airbagi]

Thank you, problem solved with the help of AlcorMP