From: Steve Wormley <steve@wormley.com>
To: qemu-devel@nongnu.org
Subject: [Qemu-devel] Network Issue with NE2k-PCI (fix?)
Date: Wed, 22 Sep 2004 17:19:51 -0700 [thread overview]
Message-ID: <20040923001951.GA21261@wormley.com> (raw)
I was having serious performance issues with Win2000 Guest and the NE2k in
qemu, things like pings of up to 16000ms lost packets, etc. I chased down
the problem and it appears that the following fix resolved the issue on my
system.
Now pings are:
151 packets transmitted, 151 packets received, 0% packet loss
round-trip min/avg/max = 2.207/17.174/195.239 ms
--- qemu/hw/i8259.c Sun Jun 20 05:58:36 2004
+++ qemu-sw/hw/i8259.c Wed Sep 22 10:49:17 2004
@@ -188,7 +196,11 @@
} else {
s->isr |= (1 << irq);
}
+ /* We don't clear a level sensitive interrupt here */
+ if (!(s->elcr & (1 << irq))) {
s->irr &= ~(1 << irq);
+ };
+
}
int cpu_get_pic_interrupt(CPUState *env)
next reply other threads:[~2004-09-23 0:26 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-09-23 0:19 Steve Wormley [this message]
2004-09-29 21:57 ` [Qemu-devel] Network Issue with NE2k-PCI (fix?) Fabrice Bellard
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=20040923001951.GA21261@wormley.com \
--to=steve@wormley.com \
--cc=qemu-devel@nongnu.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 a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).