Process command lines for Cygwin processes no longer viewable in Windows task manager as of Cygwin 1.7.21

Tom Honermann
Thu Jul 25 18:16:00 GMT 2013

On 07/25/2013 01:18 PM, Christopher Faylor wrote:
> On Thu, Jul 25, 2013 at 11:44:07AM -0400, Tom Honermann wrote:
>> On 07/25/2013 11:21 AM, Christopher Faylor wrote:
>>> On Thu, Jul 25, 2013 at 11:10:50AM -0400, Christopher Faylor wrote:
>>>> It's not strace that's broken.  That's just a simple fix to the DLL.
>>> Actually, nevermind.  It's not a bug.
>> Could you elaborate?  Prior to 1.7.21, strace provided the command line.
>>   As of 1.7.21 it doesn't.  That looks like a regression to me.
> The output that you're looking at says "Here's the command line that is
> being passed to CreateProcess".  Since there is now no command line the
> strace output is correct.

How does that make it not a regression?  The information used to be 
provided, now it isn't.

 From a user's perspective, I don't care what the implementation is. 
This *looks* broken.  Any user that relied on the information being 
present (which is a reasonable expectation given that the tool used to 
provide it and still attempts to) will consider this a regression.

I assert that expecting command lines for Cygwin processes to be 
viewable in tools like Windows Task Manager and SysInternals Process 
Explorer is a reasonable expectation - especially since they have been 
present there for many releases - again, going back to at least the 
1.5.x days.  This change may have been intentional, but from a user 
perspective, it has broken behavior that any Windows user would 
reasonably expect to be able to rely on.


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