From: "Kambo Lohan" <kambo77@hotmail.com>
To: linux-kernel@vger.kernel.org
Subject: PATCH pktgen hang, memleak, fixes
Date: Thu, 10 Jul 2003 11:22:24 -0400 [thread overview]
Message-ID: <Sea2-F47vJo8jUbRX8z000320b1@hotmail.com> (raw)
This should fix about 3 things. My first patch, be gentle...
2.5 has the same problem but I do not know if this will apply or not, we run
2.4.
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
--- linux-2.4.21/net/core/pktgen.c 2002-11-28 18:53:15.000000000 -0500
+++ linux-2.4-kjp/net/core/pktgen.c 2003-07-10 11:08:31.000000000 -0400
@@ -34,6 +34,7 @@
* * The new changes seem to have a performance impact of around 1%,
* as far as I can tell.
* --Ben Greear <greearb@candelatech.com>
+ * Fix refcount off by one if first packet fails, potential null deref,
memleak 030710- KJP
*
* Renamed multiskb to clone_skb and cleaned up sending core for two
distinct
* skb modes. A clone_skb=0 mode for Ben "ranges" work and a clone_skb != 0
@@ -84,9 +85,9 @@
#define cycles() ((u32)get_cycles())
-#define VERSION "pktgen version 1.2"
+#define VERSION "pktgen version 1.2.1"
static char version[] __initdata =
- "pktgen.c: v1.2: Packet Generator for packet performance testing.\n";
+ "pktgen.c: v1.2.1: Packet Generator for packet performance testing.\n";
/* Used to help with determining the pkts on receive */
@@ -613,12 +614,11 @@
kfree_skb(skb);
skb = fill_packet(odev, info);
if (skb == NULL) {
- break;
+ goto out_reldev;
}
fp++;
fp_tmp = 0; /* reset counter */
}
- atomic_inc(&skb->users);
}
nr_frags = skb_shinfo(skb)->nr_frags;
@@ -634,9 +634,10 @@
last_ok = 0;
}
else {
- last_ok = 1;
- info->sofar++;
- info->seq_num++;
+ atomic_inc(&skb->users);
+ last_ok = 1;
+ info->sofar++;
+ info->seq_num++;
}
}
else {
@@ -707,6 +708,7 @@
}
}/* while we should be running */
+
do_gettimeofday(&(info->stopped_at));
total = (info->stopped_at.tv_sec - info->started_at.tv_sec) * 1000000 +
@@ -731,6 +733,8 @@
(unsigned long long) info->errors
);
}
+
+ kfree_skb(skb);
out_reldev:
if (odev) {
_________________________________________________________________
STOP MORE SPAM with the new MSN 8 and get 2 months FREE*
http://join.msn.com/?page=features/junkmail
next reply other threads:[~2003-07-10 15:07 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-07-10 15:22 Kambo Lohan [this message]
2003-07-19 16:32 ` PATCH pktgen hang, memleak, fixes Robert Olsson
2003-07-19 17:34 Kambo Lohan
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=Sea2-F47vJo8jUbRX8z000320b1@hotmail.com \
--to=kambo77@hotmail.com \
--cc=linux-kernel@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.