[hunchentoot-devel] Fwd: [Sbcl-devel] SBCL crashes in READ-SEQUENCE with Error: The value 1025 is not of type (MOD 1025)

[Anton Vodonosov]

Are you use SELECT?
(just curious)

on Thursday, January 8, 2009, 3:56:36 PM Hans wrote:

> Recently, I saw one of my servers crash to ldb with the error message
> "Error: The value 1025 is not of type (MOD 1025)".  This happens every
> few months, and I have not been bothered too much by it (and I will be
> bothered even less now that Zach Beane has posted how I can disable
> ldb), but I wanted to know what the cause for this is, so inquired in
> sbcl-devel.  See Juho's answer below.  It boils down to:  There is a
> file descriptor leak.

> -Hans

> ---------- Forwarded message ----------
> From: Juho Snellman <jsnell at iki.fi>
> Date: Thu, Jan 8, 2009 at 14:26
> Subject: Re: [Sbcl-devel] SBCL crashes in READ-SEQUENCE with Error:
> The value 1025 is not of type (MOD 1025)
> To: Hans Hübner <hans.huebner at gmail.com>
> Cc: sbcl-devel at lists.sourceforge.net


> Hans Hübner <hans.huebner at gmail.com> writes:
>> Hi,
>>
>> sporadically, some of my Hunchentoot based web servers running on SBCL
>> 1.0.20.22 (FreeBSD, threaded) crash to ldb, with the following messages
>> appearing on the REPL:
>>
>> Error: The value 1025 is not of type (MOD 1025).

> My first guess would be that you've got a fd that's too large (select
> can only handle fds smaller than FD_SETSIZE).

> Some people have explored replacing the use of select() for
> serve-event with using various other fd polling interfaces to work
> around this problem (there should be one patch floating around that
> uses epoll() on Linux, don't know whether that'd be usable for you on
> FreeBSD).

> --
> Juho Snellman

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