| To: | dada1 <dada1@xxxxxxxxxxxxx> |
|---|---|
| Subject: | Re: Network buffer hang was Re: [PATCH] 2.6 workaround for Athlon/Opteron prefetch errata |
| From: | Ben Greear <greearb@xxxxxxxxxxxxxxx> |
| Date: | Thu, 11 Sep 2003 18:46:24 -0700 |
| Cc: | "Nakajima, Jun" <jun.nakajima@xxxxxxxxx>, Andi Kleen <ak@xxxxxx>, linux-kernel@xxxxxxxxxxxxxxx, netdev@xxxxxxxxxxx |
| In-reply-to: | <0b2901c37867$1db399a0$890010ac@edumazet> |
| Organization: | Candela Technologies |
| References: | <uqD5.3BI.3@xxxxxxxxxxxxxxxx> <m3iso0arlx.fsf@xxxxxxxxxxxxxxxxxxxxxx> <0a5801c37821$54eb8180$890010ac@edumazet> <20030911051121.GA7751@xxxxxxxxxxxxx> <0a7701c37829$c4bdef40$890010ac@edumazet> <20030911120956.GB7751@xxxxxxxxxxxxx> <0b2901c37867$1db399a0$890010ac@edumazet> |
| Sender: | netdev-bounce@xxxxxxxxxxx |
| User-agent: | Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.5b) Gecko/20030827 |
dada1 wrote: This is not a kernel crash. But total freeze as all memory is used by network buffers, in no more than 10 seconds. I believe I have hit this as well, by starting 500kbps streams on 500 vlans at once. My machine locks so hard that I have not been able to get any info out of it...but the realtek driver shows and error message about not being able to allocate any buffers if I ping it.... I was using kernel 2.4.21 or so, and had tcp buffers turned up quite high. I have seen this on P-IV and AMD (single Athlon) systems, as well as a VIA C3. -- Ben Greear <greearb@xxxxxxxxxxxxxxx> Candela Technologies Inc http://www.candelatech.com |
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