graph (plotutils) seg-faulting

Brian Inglis
Tue Jul 21 23:59:29 GMT 2020

On 2020-07-21 10:17, Tony Richardson via Cygwin wrote:
> On Tue, Jul 21, 2020 at 9:51 AM Brian Inglis wrote:
>> On 2020-07-20 22:28, Marco Atzeri via Cygwin wrote:
>>> On 21.07.2020 05:12, briand wrote:
>>>> On Sun, 19 Jul 2020 21:15:26 +0200
>>>> Marco Atzeri via Cygwin wrote:

>>>>>> Can I just back up my home directory, kill the entire cygwin64 
>>>>>> directory and start over?
>>>>> I suggest to install in a parallel directory, they works fine
>>>>> without interference, eg in my system I have:>>>>> In this way you can copy your home more easily and kill the old one
>>>>> when everything is fine.
>>>> I tell you my work machine is just cursed.  Installed a fresh cygwin, 
>>>> the only package i chose was plotutils, and i get the exact same
>>>> problem.
>>>> Not sure where to go from here...

>>> I bet the curse is a BLODA
>>> also as I noted that the loading address of your DLLs is **very** low

>>> my pc:
>>> $ grep cygwin1.dll graph.strace
>>> --- Process 84828 loaded D:\cygwin64\bin\cygwin1.dll at 0000000180040000

>>> your strace
>>> $ grep cygwin1.dll temp.txt
>>> --- Process 3080 loaded C:\cygwin64\bin\cygwin1.dll at 0000000000ce0000
>>> --- Process 3080 loaded C:\cygwin64\bin\cygwin1.dll at 0000000000ee0000
>>> --- Process 3080 loaded C:\cygwin64\bin\cygwin1.dll at 00000000014f0000

>>> can you exclude the AV from your cygwin directory ?

> I just wanted to mention that I am having similar problems with graph as
> the original poster (memory access error after loading cygiconv-2.dll).  I
> am running Windows Defender as my only AV.  The problem persists after
> turning that off though.

I have been running Cygwin with W10 Defender since it came out with no issues.
YMMV. AVs are not the only type of BLODA.

Please post or attach as plain text verbatim copies of the failing commands,
output, and suggested diagnostics, so we can see where the issues are similar or
may differ.

Take care. Thanks, Brian Inglis, Calgary, Alberta, Canada

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