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From Gary Algier <...@ulticom.com>
Subject Re: [users@httpd] Cannot see Large web pages?
Date Wed, 09 Oct 2002 19:24:25 GMT
Find the line "#EnableMMAP off" (if any) and change it to "EnableMMAP off".
I.E., turn off the use of mmap().  See if that helps.  May, not, but I
did notice the mmap() calls in the strace.

[My suggestion to use strace was assuming that the server child process had
just died without completing the request.  It does not look like a SEGFAULT
happened.  Oh, well.]

jsteven4@TXU.COM wrote:
> I have found something new that leads me to believe that it is definately
> apache or perhaps memory buffer related.
> I do a GET from the command line in two different methods. If I do a GET on
> the webserver using the URL to the specific page I get the error.
> However, if I use the GET on the webserver using the absolute path from
> /--> onward to the page it works fine. So, I guess that tells me that the
> page
> itself is not messed up somehow. I didn't think that it could be the code
> in the page but I guess this helps prove that.
> 
> strace -f -p <pid> produces this info as well as a WHOLE lot more ... I'm
> picking and choosing apparent relevent stuff here.
> Can anyone help decifer this stuff?
> 
> <--snip-->
> 16935 lstat64
> ("/usr/local/httpd/htdocs/documentweb/docweb.output.host80.html
> ", {st_mode=S_IFREG|0777, st_size=8781378, ...}) = 0
> 16935 ioctl(5, TCGETS, 0xbfffe42c)      = -1 ENOTTY (Inappropriate ioctl
> for dev
> ice)
> 16935 fstat64(5, {st_mode=S_IFREG|0777, st_size=8781378, ...}) = 0
> 16935 old_mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS,
> -1,
> 0) = 0x40018000
> 16935 read(5, "<!doctype html public>\n<html>\n<h"..., 8192) = 8192
> 16935 brk(0x8733000)                    = 0x8733000
> <--snip-->
> 16935 mremap(0x45071000, 987136, 3936256, MREMAP_MAYMOVE) = 0x45071000
> 16935 munmap(0x40017000, 4096)          = 0
> 16935 _exit(1)                          = ?
> 
> Is this relivent to this? I pretty much cut out any information about my
> systems, like ip and hostname and such.
> It seems that with this utility that the page is being read. I just don't
> know if it is the system reading it or the httpd process.
> jms
> 
> 
> 
> 
> 
> jsteven4@TXU.COM on 10/09/2002 11:56:54 AM
> 
> Please respond to users@httpd.apache.org
> 
[snip snip]

-- 
Gary Algier, WB2FWZ          gaa at ulticom.com             +1 856 787 2758
Ulticom Inc., 1020 Briggs Rd, Mt. Laurel, NJ 08054      Fax:+1 856 866 2033


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