kern/100138: Unstable Broadcom NetXtreme II (BCM5708) PCI/PCIe
scott.wilson at gmail.com
Sun Aug 6 03:50:20 UTC 2006
The following reply was made to PR kern/100138; it has been noted by GNATS.
From: "Scott Wilson" <scott.wilson at gmail.com>
To: bug-followup at FreeBSD.org, galaluk at gmail.com
Subject: Re: kern/100138: Unstable Broadcom NetXtreme II (BCM5708) PCI/PCIe Gigabit Ethernet
Date: Sun, 6 Aug 2006 05:40:27 +0200
I am still experiencing this problem on a PowerEdge 1950 running amd64
port with the patch mentioned in this pr:
FreeBSD 6.1-RELEASE-p3 #0: Tue Aug 1 20:23:58 EDT 2006
root at pe3.private.idealist.org:/usr/obj/usr/src/sys/SMP
---------- Forwarded message ----------
From: Pyun YongHyeon <pyunyh at gmail.com>
Date: Aug 5, 2006 5:10 AM
Subject: Re: Re: bce0: Error mapping mbuf into TX chain!
On Fri, Aug 04, 2006 at 03:52:40PM +0200, Scott Wilson wrote:
> On 7/13/06, Doug Ambrisko <ambrisko at ambrisko.com> wrote:
> >David (Controller AE) Christensen writes:
> >| Sorry, I've been out on vacation and just got back into town. I'll MFC
> >| the patch within the next day or two.
> >I'll let you merge in the down/up fix that I put into -current.
> >Doug A.
> Hi, I just had a bce interface lock up with the same problem:
> Aug 4 07:00:16 pe3 kernel: bce0: /usr/src/sys/dev/bce/if_bce.c(4644):
> Error mapping mbuf into TX chain!
> Aug 4 07:00:47 pe3 last message repeated 368 times
> running v 22.214.171.124 of if_bce.c from RELENG_6 which has the
> defragmentation patch mentioned in this thread. Any suggestions on
> how I can help find a fix?
Hmm... I can see several bus_dma(9) related bugs in bce(4).
For architectures that have IOMMU hardware it may have corrupted DMA
mapping and I'm pretty sure it wouldn't work on sparc64.
When it has to handle many fragmented frame or has insufficient
number of free Tx descriptors it would show unexpected results.
Unfortunately I don't have hardwares supported by bce(4) and
fixing requiries a working hardware. :-(
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