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Re: Failed download files larger that 2GB through proxy with ICAP.

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Juris Krumins wrote:
Thanks Henrik.
-D_FILE_OFFSET_BITS=64 worked for me.

Thank you very much.

Just for clarity on the solution:
  Did you have to set that while rebuilding _clamav_?? or something else?


Amos



-----Original Message-----
From: Henrik Nordstrom <henrik@xxxxxxxxxxxxxxxxxxx>
To: juris.krumins@xxxxxxx
Cc: squid-users@xxxxxxxxxxxxxxx
Subject: Re:  Failed download files larger that 2GB through
proxy with ICAP.
Date: Thu, 20 Aug 2009 13:41:53 +0200

tor 2009-08-20 klockan 11:59 +0300 skrev Juris Krumins:
Following your suggestion I've captured traffic betwen ICAP and Squid.

11:11:05.864532 IP 127.0.0.1.49824 > 127.0.0.1.1345: P
2157719238:2157723337(4099) ack 2156830511 win 28786 <nop,nop,timestamp
1727787390 1727787383>

Squid sends data to the ICAP server.

11:11:05.877022 IP 127.0.0.1.1345 > 127.0.0.1.49824: R
2156830511:2156830511(0) ack 2157723337 win 30720 <nop,nop,timestamp
1727787403 1727787387>

ICAP server aborts with a TCP Reset, abnormally terminating the
transaction.

3) ICAP server logs following The child 13559 not exited normaly.signaled with signal:25

Signal 25 is SIGXFSZ and man 7 signal shows us that:
SIGXFSZ     25,25,31    Core    File size limit exceeded (4.2BSD)

Heh, there you go ;-)

So theoretically ICAP process/subprocess have to create core file
(because of default action specified in standart).
But I can't find it unfortunatelly.

It does not need to dump core. Depends on many factors.

And is not needed either as it's very obvious what happened. You ran an
32-bit application trying to store more than 2G of data in a file
without being compiled with LFS support. 2GB = 2^(32-1) bytes and is the
limit on what the POSIX file I/O API can handle in 32-bit mode.

Fix: Recompile the ICAP server with LFS support (64-bit file I/O), or
move to a 64-bit OS if supported by CPU and forget all of these 32-bit
issues...

REgards
Henrik





--
Please be using
  Current Stable Squid 2.7.STABLE6 or 3.0.STABLE18
  Current Beta Squid 3.1.0.13

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