Jan S. Reporter
	Description • 7 years ago

User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/56.0.2924.87 Safari/537.36

Steps to reproduce:

- install Addons e.g. Ghostery, so that Firefox always opens a 2nd process using e10s feature
- check if more than 1 process of firefox is started (Process Explorer)
- upload file at: http://validator.w3.org/#validate_by_upload
- try to remove file with DEL command from cmd


Actual results:

The delete command is pending but not executed. Firefox keeps a file handle until it is closed.


Expected results:

The file should have been removed.

	YF (Yang)
	Comment 1 • 7 years ago

WFM in 51.0.1 (e10s on) or 52.0 (e10s on/off) on Win10.

	Abe - QA (:Abe_LV)
	Comment 2 • 7 years ago

Hi Jan,

I have tested this on Windows 10 x64 with latest nightly and release 51.0.1, but I could not manage to reproduce.
Here is the screen capture: https://testing-1.tinytake.com/sf/MTM5MTY2OV81MDM1NDIy

Is this a regression issue? If yes, could you please provide regression range using mozregression tool?  Information about mozregression is attached.

Thanks.

	Jan S. Reporter
	Comment 3 • 7 years ago

Hi Abe,

you are right. For some reason the w3 validator page changed. I was able to reproduce the problem here:

http://cgi-lib.berkeley.edu/ex/fup.html

Could you please try it once again?

Thanks

	YF (Yang)
	Comment 4 • 7 years ago

(In reply to Jan S. from comment #3)
> Hi Abe,
> 
> you are right. For some reason the w3 validator page changed. I was able to
> reproduce the problem here:
> 
> http://cgi-lib.berkeley.edu/ex/fup.html
> 
> Could you please try it once again?
> 
> Thanks

WFM in Firefox 55.0a1 x86 and 51.0.1 x86, with e10s on, on Win10 x64.

	Jan S. Reporter
	Comment 5 • 7 years ago

I created a screen capture that shows the problem: http://recordit.co/DWLM6zC01y

	YF (Yang)
	Comment 6 • 7 years ago

The locked seems to happen when using the del command to it, but the lock from Firefox. It can be removed from Windows Explorer without used DEL command.

	Abe - QA (:Abe_LV)
	Comment 7 • 7 years ago

I can reproduce it now using the URL in comment 3. 
It says "Access is denied" when I try to delete it from the command window. 
It works fine with google Chrome.

	YF (Yang)
	Comment 8 • 7 years ago

I think this is a core issue.

	Boris Zbarsky [:bzbarsky]
	Comment 9 • 7 years ago

This is a core necko issue.  Someone is not properly closing (or finishing reading?) that POST stream.

I don't think this is minor; leaving a file locked like this on Windows has all sorts of weird user-hostile effects.