Re: I Cannot Start the X Server

[Todd Sankey <tsankey at gmail dot com>]

You are right. I see that in looking through the cygwin source for
unlink. I am trying to understand what can cause the link failure by
reviewing the link source.


On Sun, Feb 15, 2009 at 7:57 AM, Jon TURNEY <jon.turney@dronecode.org.uk> wrote:
> Jon TURNEY wrote:
>>>
>>> From ProcMon it looks like /tmp/.tX0-lock is being deleted before it is
>>> moved.
>>>
>>> Specifically, it is being opened with options: Synchronous IO Non-Alert,
>>> Non-Directory File, Delete On Close
>>>
>>> The file is then closed and re-opened and the re-open fails because it no
>>> longer exists.
>>
>> Thanks for the information.
>>
>> As you can see from LockServer() function in
>> http://cgit.freedesktop.org/xorg/xserver/tree/os/utils.c, the sequence of
>> actions should be
>>
>> open(tmp)
>> write()
>> close()
>> link(tmp,lock)
>> unlink(tmp)
>>
>> and the failure seems to be that the link() doesn't succeed.  So having
>> the file "delete-on-close" does explain what is seen.
>>
>> Any insight into why "delete-on-close" is being requested?
>
> Actually, looking into this a bit more, 'delete-on-close' is used for the
> unlink operation, so I'm not sure what to make of what you are telling me.
>
> Is there any chance you could provide the relevant section of the ProcMon
> output, and the output of 'strace Xwin' ?
>

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