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Re: constant high CPU (>75%) w/ Squid25-STABLE10? thought it was cache-digests, but no ...

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On Sun, 11 Sep 2005, OpenMacNews wrote:

  2005/09/11 09:23:57| comm_poll: 1+0 FDs ready

looking at this, i don't thing i've verified your theory, but i'm not at all sure what *is* happening ...

I think it is the same.. just trapped a bit earlier than I expected.. I have attached a small patch which fixes what I saw in the source. Please give it a try.

off to google on com_poll, unless i hear from you first :)

It's a Squid internal function, keeping track of which connections are ready for reading/writing. Google will probably find you a lot of discussion mentioning this function but none relevant to your problem.

Regards
Henrik
? q
Index: src/net_db.c
===================================================================
RCS file: /cvsroot/squid/squid/src/net_db.c,v
retrieving revision 1.158.2.10
diff -u -p -r1.158.2.10 net_db.c
--- src/net_db.c	30 Jun 2005 18:50:56 -0000	1.158.2.10
+++ src/net_db.c	11 Sep 2005 22:06:33 -0000
@@ -571,7 +571,12 @@ netdbExchangeHandleReply(void *data, cha
 	    size -= hdr_sz;
 	    p += hdr_sz;
 	} else {
-	    size = 0;
+	    if (size >= ex->buf_sz) {
+		debug(38, 3) ("netdbExchangeHandleReply: Too big HTTP header, aborting\n");
+		netdbExchangeDone(ex);
+	    } else {
+		size = 0;
+	    }
 	}
     }
     debug(38, 5) ("netdbExchangeHandleReply: start parsing loop, size = %ld\n",

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