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From:	Sam Lin <samlin0925 AT gmail DOT com>
Date:	Fri, 27 May 2022 11:36:27 +0800
Message-ID:	<CANe7G9EE5Q9kd7FM=+ERhhB2zBxyNo1Tx7Rbuy=X4svaG2m0fw@mail.gmail.com>
Subject:	Unable to execute Cygwin application within UDF format
To:	cygwin AT cygwin DOT com
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Hi ,

I will see the problem on WIN10 or WIN SERVER, the duplicate steps are as
follows:

1. Write a simple code 'hello world'  program  and   compiled the
executable file using GCC.

//  hello.c
#include <stdio.h>

int main() {
    printf("Hello World\n");
    return 0;
}

$ gcc hello.c -o hello.exe

2. Format the specified USB drive using command prompt.
  C:\> format <USB Drive Letter>: /fs:UDF /q

3. Put the executable files hello.exe and cygwin1.dll into the UDF format
flash drive and execute.
We will find that the execution error occurs with cygwin v3.2.x and above.

F:\>hello.exe
      0 [main] hello (16224) F:\hello.exe: *** fatal error - add_item
("\??", "/", ...) failed, errno 22
Stack trace:
Frame        Function    Args
000FFFFCCE0  001800622EE (0018029F172, 0018027AE81, 00800000000,
000FFFF8B40)
000FFFFCCE0  0018004874A (00000000000, 000FFFFCCE0, 00180020010,
000FFFFABD6)
000FFFFCCE0  00180048782 (000FFFF9BD0, 00000000016, 00800000000,
00000000001)
000FFFFCCE0  001800E30BC (000FFFFCBD0, 000FFFFCDF0, 001800D7488,
00000000000)
000FFFFCCE0  00180133DC5 (001800D344A, 00000000000, 00000000000,
00000000000)
000FFFFCCE0  00180048DA5 (00000000000, 00000000000, 00000000000,
00000000000)
000FFFFFFF0  00180047856 (00000000000, 00000000000, 00000000000,
00000000000)
000FFFFFFF0  00180047904 (00000000000, 00000000000, 00000000000,
00000000000)
End of stack trace

This error does not occur in v3.1.7.
Hope this will be resolved in the future.

Thanks,
Sam

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