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Date: Wed, 30 Jun 2004 19:13:32 -0700 (PDT)
From: Doug White <dwhite@gumbysoft.com>
To: Mikhail Teterin <mi+mx@aldan.algebra.com>
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cc: stable@FreeBSD.org
Subject: Re: the dreaded "Resource temporarily unavailable" in vi
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On Wed, 30 Jun 2004, Mikhail Teterin wrote:

> It just started to happen again. Over and over, I open a file, start
> editing, then -- at a random moment -- I get: ": input: Resource
> temporarily unavailable" and vi exits....
>
> Here is the ktrace/kdump snippet:
>
> 	98705 vi       CALL  sigaction(0x12,0x280e792c,0)
> 	98705 vi       RET   sigaction 0
> 	98705 vi       CALL  read(0,0x8090000,0xff)
> 	98705 vi       RET   read -1 errno 35 Resource temporarily unavailable
> 	98705 vi       CALL  sigaction(0x12,0x280e7914,0x280e792c)
> 	98705 vi       RET   sigaction 0
>
> read(2) is failing?

yes we know.  I've debugged this myself and its not clear WHY its
returning EAGAIN. Also hacking vi to handle EAGAIN here is very difficult,
and really it should handle it.

-- 
Doug White                    |  FreeBSD: The Power to Serve
dwhite@gumbysoft.com          |  www.FreeBSD.org