On 9/10/2020 3:31 PM, Thomas Wolff wrote:
Am 10.09.2020 um 21:19 schrieb Ken Brown via Cygwin:
On 9/10/2020 3:15 PM, Andrew Schulman via Cygwin wrote:
On Sep  9 08:08, Andrew Schulman via Cygwin wrote:
Here's a strange one. In bash in i686, try to run:

ls /dev/ptmx

I only get about as far as:

ls /dev/p

and then my terminal window vanishes. This happens:

* In fish or bash.
* On two different hosts that I've tried.
* In mintty or a system terminal. In the system terminal, sometimes the
command works normally the first time, but fails the 2nd time; or I have to
press <TAB> after `ls /dev/p`, then the terminal vanishes.
* With other commands that treat their arguments as files, not text. So for
example, I can't finish typing `cat /dev/ptmx` or `test -r /dev/ptmx`
before the terminal window vanishes, but `echo /dev/ptmx` works normally.

It doesn't happen:

* In x86_64 - only i686.
* In scripts - only interactively.

Is anyone else able to reproduce this? I've tried to capture an strace log,
but I've failed so far. The strace seems to stop the crash. Still trying.

I thought this could be a BLODA problem, but the two hosts I tried are
running different virus scanners (McAfee and Windows Defender).

Cygwin 3.1.7-1, all packages up-to-date. Output of cygcheck -svr attached.

Andrew

I think I fixed it.  I just uploaded new developer snapshots to
https://cygwin.com/snapshots/  Please give them a try.

When I substitute cygwin1-20090909.dll for cygwin1.dll in i686, I can't run
any commands. They all give "The application was unable to start correctly
(0xc0000022)". Anything different I should be doing?

Check the permissions on cygwin1-20090909.dll.  Is it executable?
cygwin1-20090909.dll is 11 years old. Did you download the latest snapshot?

I'm sure that was just a typo. The 11-year-old one is not even available on the snapshot page. In any case, I shouldn't have mentioned that in my reply. I should have told him to check the permissions on the (new) cygwin1.dll.

0xc0000022 is the NT status code STATUS_ACCESS_DENIED, so it's likely a permissions problem.

Ken
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