From: Ken Brown <kbrown@cornell.edu>
To: cygwin@cygwin.com
Subject: Re: /dev/p* causes shell crash in i686
Date: Thu, 10 Sep 2020 15:38:18 -0400 [thread overview]
Message-ID: <73a5cec3-1805-d5b3-4c08-d78d5b787b50@cornell.edu> (raw)
In-Reply-To: <df188735-815e-6b0e-5af5-f535b1161fad@towo.net>
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
next prev parent reply other threads:[~2020-09-10 19:38 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-09-09 12:08 Andrew Schulman
2020-09-09 14:54 ` Eliot Moss
2020-09-09 21:49 ` Corinna Vinschen
2020-09-10 19:15 ` Andrew Schulman
2020-09-10 19:19 ` Ken Brown
2020-09-10 19:31 ` Thomas Wolff
2020-09-10 19:38 ` Ken Brown [this message]
2020-09-10 19:41 ` Thomas Wolff
2020-09-10 19:44 ` Brian Inglis
2020-09-10 19:38 ` Brian Inglis
2020-09-10 22:37 ` Andrew Schulman
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