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Date:	Fri, 27 May 2022 13:31:20 +0900
From:	Takashi Yano <takashi DOT yano AT nifty DOT ne DOT jp>
To:	cygwin AT cygwin DOT com
Subject:	Re: Unable to execute Cygwin application within UDF format
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On Fri, 27 May 2022 11:36:27 +0800
Sam Lin wrote:
> 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.

This seems to happen if cygwin1.dll is placed in the root
directly regardless of file system type.

-- 
Takashi Yano <takashi DOT yano AT nifty DOT ne DOT jp>

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