Date: Sat, 05 Dec 2009 18:40:17 +0900 (JST) From: Hiroki Sato <hrs@FreeBSD.org> To: jfvogel@gmail.com Cc: stable@FreeBSD.org Subject: Re: em interface slow down on 8.0R Message-ID: <20091205.184017.30030575.hrs@allbsd.org> In-Reply-To: <20091203.182931.129751456.hrs@allbsd.org> References: <2a41acea0912021249w1aed8e83kf89ceb1e6041edaf@mail.gmail.com> <2a41acea0912021514r2d44dd33n4c364518d7fe1703@mail.gmail.com> <20091203.182931.129751456.hrs@allbsd.org>
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----Security_Multipart(Sat_Dec__5_18_40_17_2009_401)-- Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit Hiroki Sato <hrs@freebsd.org> wrote in <20091203.182931.129751456.hrs@allbsd.org>: hr> And another thing, I noticed a box with 82573E and 82573L sometimes hr> got stuck after upgrading to 8.0-STABLE. It has moderate network hr> load (average 5-10Mbps) on both NICs. It worked for a day or two and hr> then got stuck suddenly. Rebooting the box solved the situation, but hr> it got stuck again after a day or so. After it happens, the hr> interface does not respond. The other functionalities of FreeBSD hr> seemed working. Doing an up/down cycle for the NICs seemed to send hr> some packets, but it did not recover completely; rebooting was needed hr> for recovery. This box does not have the RTT problem. I am still hr> not sure what is the trigger, there seems something wrong. Things turned out for this symptom so far are: - This occurs around once per 1-2 days. - Once it occurs, all of communications including ARP and IPv4 stop. - "ifconfig em0 down/up" can recover the interface. However, on doing "up" after "down" the following message was displayed: # ifconfig em0 up em0: Could not setup receive structures After trying it several times it worked. Then, the interface seemed back to normal for a couple of minutes, but it stopped again. I guess there is a kind of deadlock somewhere but not sure it is really related to the em(4) driver. I will continue to investigate anyway. -- Hiroki ----Security_Multipart(Sat_Dec__5_18_40_17_2009_401)-- Content-Type: application/pgp-signature Content-Transfer-Encoding: 7bit -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.9 (FreeBSD) iEYEABECAAYFAksaKoEACgkQTyzT2CeTzy1MSQCghpIUlLCtnoop67R1QCFc25Dd xFsAoNQgMeCp2fVpGVQheEYI/7JJG+05 =5joe -----END PGP SIGNATURE----- ----Security_Multipart(Sat_Dec__5_18_40_17_2009_401)----
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