Date: Fri, 8 Jun 2001 21:39:15 +0200 From: Bernd Walter <ticso@mail.cicely.de> To: Matt Dillon <dillon@earth.backplane.com> Cc: Graham Barr <gbarr@pobox.com>, freebsd-hackers@FreeBSD.ORG Subject: Re: read(2) and ETIMEDOUT Message-ID: <20010608213915.A27537@cicely20.cicely.de> In-Reply-To: <200106072220.f57MKwv78170@earth.backplane.com>; from dillon@earth.backplane.com on Thu, Jun 07, 2001 at 03:20:58PM -0700 References: <20010607171501.S50444@pobox.com> <200106071653.f57Grsn73369@earth.backplane.com> <20010607180011.U50444@pobox.com> <200106071733.f57HXov74249@earth.backplane.com> <20010607183535.X50444@pobox.com> <200106072220.f57MKwv78170@earth.backplane.com>
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On Thu, Jun 07, 2001 at 03:20:58PM -0700, Matt Dillon wrote: > > : > :On Thu, Jun 07, 2001 at 10:33:50AM -0700, Matt Dillon wrote: > :> > :> : > :> :Thanks, I will try setting errno, but I don't think it is signals. > :> :I have been running truss on the process. The relevant part is > :> : > :> :gettimeofday(0xbfbffa54,0x0) = 0 (0x0) > :> :select(0x50,0x93f8c90,0x0,0x0,0xbfbffa74) = 3 (0x3) > :> :read(0x16,0xa2da000,0x8000) ERR#60 'Operation timed out' > :> : > :> :In fact there are no signals in the whole truss output > :> : > :> :Graham. > :> > :> What type of descriptor is the read being performed on? A TCP > :> connection or, say, a reading a file over NFS? > : > :It is a TCP/IP connection. > : > :Graham. > > You can get this if the TCP connection times out, either through a > keepalive timeout or the protocol hits the maximum number of transmit > retries. I'd have to delve into the cvs logs to see when it was added, > but it seems reasonable. You should treat it simply as an EIO or > something like that. Keepalives are a good point. I know of OS/2 Systems that can't handle them and behave the way you describe. What system is on the other side? -- B.Walter COSMO-Project http://www.cosmo-project.de ticso@cicely.de Usergroup info@cosmo-project.de To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
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