Mail Archives: cygwin/2008/06/04/07:57:05
I have completely disabled all non-essential services that may affect Cygwin, but we are still getting the random segfaults.
Also we have an identical physical (e.g. non VMWare) machine running the same tools and version of Cygwin which does not seg fault. Is it possible there is a actually a bug in Cygwin which is causing these problems when running on a virtual machine?
As virtualisation is a growing technology this could cause problems in the future
> From: comp9900405 AT hotmail DOT com
> To: cygwin AT cygwin DOT com
> Subject: RE: 1.5.25: Random segfaults in unix tools
> Date: Tue, 27 May 2008 15:49:04 +0100
>
>
> Hmm, I'd not seen that. I'll disable the scanning of the Cygwin directory in the virus checker. It's also worth noting this is not a physical machine but a VMware instance. Is this likely to cause problems?
>
> ----------------------------------------
>> Date: Tue, 27 May 2008 10:05:38 -0400
>> From: cgf-use-the-mailinglist-please AT cygwin DOT com
>> To: cygwin AT cygwin DOT com
>> Subject: Re: 1.5.25: Random segfaults in unix tools
>>
>> On Tue, May 27, 2008 at 02:36:18PM +0100, Jamie Cole wrote:
>>>
>>>
>>>I'm using Cygwin to provide the UNIX utilities such as sed, awk, cut etc. to a Windows server. This process works correctly on our dev server, but when using the same shells and Cygwin install on our prod box these tools randomly segfault.
>>>
>>>The processes will work a number of times (seemingly random), but after a few runs will invariably begin to segfault as shown below, the only solution is to bounce the box and we get a few more runs before futher segfaults.
>>>
>>>
>>>Exception: STATUS_ACCESS_VIOLATION at eip=8B909090
>>>eax=00000000 ebx=61168990 ecx=00000007 edx=00000000 esi=611689B8 edi=0022C900
>>>ebp=0022C858 esp=0022C850 program=C:\cygwin\bin\cut.exe, pid 1620, thread main
>>>cs=0023 ds=002B es=002B fs=0053 gs=002B ss=002B
>>>Stack trace:
>>>Frame Function Args
>>>0022C858 8B909090 (611689B8, 61168990, 10000000, 61168990)
>>>0022C888 61084107 (0022C900, 00000001, 00000001, 61168990)
>>>0022C8B8 6108447D (00000000, 00000000, 6110941C, 7D61C92D)
>>>0022CCE8 61096FB4 (00000000, 00000400, 00000000, 00000000)
>>>0022CD98 6100552E (00000000, 0022CDD0, 61005450, 0022CDD0)
>>>61005450 61004416 (0000009C, A02404C7, E8611021, FFFFFF48)
>>>19 [main] cut 1620 _cygtls::handle_exceptions: Error while dumping state (probably corrupted stack)
>>>
>>>What is causing the segfaults and how can it be resolved?
>>
>> Given the failing IP address I'd say it was BLODA:
>>
>> http://cygwin.com/faq/faq.using.html#faq.using.bloda
>>
>> cgf
>>
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