Date: Wed, 23 Apr 2008 00:13:44 +0400 From: pluknet <pluknet@gmail.com> To: "Mike Tancsa" <mike@sentex.net> Cc: stable@freebsd.org Subject: Re: nfs-server silent data corruption Message-ID: <a31046fc0804221313k5bf5e2f3h106a342a5644e152@mail.gmail.com> In-Reply-To: <200804221807.m3MI73bN092981@lava.sentex.ca> References: <wpmyno2kqe.fsf@heho.snv.jussieu.fr> <20080421094718.GY25623@hub.freebsd.org> <wp63ubp8e0.fsf@heho.snv.jussieu.fr> <200804211537.m3LFbaZA086977@lava.sentex.ca> <wpy77650s0.fsf@heho.snv.jussieu.fr> <200804221501.m3MF1guW092221@lava.sentex.ca> <wpzlrlu6w7.fsf@heho.snv.jussieu.fr> <200804221741.m3MHfYjO092795@lava.sentex.ca> <wpabjln518.fsf@heho.snv.jussieu.fr> <200804221807.m3MI73bN092981@lava.sentex.ca>
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On 22/04/2008, Mike Tancsa <mike@sentex.net> wrote:
> At 02:00 PM 4/22/2008, Arno J. Klaassen wrote:
>
> > >
> > > Are you using the latest RELENG_7, or at least the latest version of
> > > nfe thats in RELENG_7 ?
> >
> >
> > Think so :
> >
>
> OK, and it is the latest RELENG_7 ? Or just the if_nfe.c file has been
> manually updated ? Also, you are using ULE or the 4BSD scheduler ? I still
> have 4BSD on the box I am testing on.
Hi, I have the same problem with data corruption (with nfe on nfs server side),
particularly when transferring large files.
Maybe this is somehow associated with the topic.
My simple test case:
truncate -s 1000m bigfile
^^ here I get zero-filed file
cp bigfile /nfs/mounted
^^ here I get not-at-all-zero-filed file, after uploading to nfs server
I looked at the corrupted file. It contains a few ranges, filed with
non-zero bytes:
equal to zero? real 4-byte value offset
======================================
not equal 1200355616 at pos=38797316
... <-- this range contains per-4bytes garbage, omit
not equal 3879749905 at pos=38813696
not equal 161160732 at pos=45613060
... <-- ditto
not equal 575257183 at pos=45629440
not equal 1943682165 at pos=59768836
... <-- ditto
not equal 2843639625 at pos=59785216
not equal 2653910121 at pos=60293124
... <-- ditto
not equal 3462830780 at pos=60309504
Some info:
nfs server on 8-CURRENT as of Apr 17
nfs client on 7.0-STABLE as of Apr 12
dmesg | grep nfe
nfe0: <NVIDIA nForce2 MCP2 Networking Adapter> port 0xe000-0xe007 mem
0xe2001000-0xe2001fff irq 20 at device 4.0 on pci0
miibus0: <MII bus> on nfe0
nfe0: Ethernet address: 00:04:61:6c:76:b1
nfe0: [FILTER]
nfe0: tx v1 error 0x6001
nfe0: tx v1 error 0x6001
nfe0: tx v1 error 0x6001
nfe0: tx v1 error 0x6001
nfe0: tx v1 error 0x6001
nfe0: tx v1 error 0x6001
nfe0: tx v1 error 0x6001
nfe0: tx v1 error 0x6001
nfe0: tx v1 error 0x6001
nfe0: tx v1 error 0x6001
nfe0: tx v1 error 0x6001
nfe0: tx v1 error 0x6001
^^^
This appears while cp'ing file to server.
(btw they do not appear with disabled polling, probably it's an another issue)
vmstat -i | grep nfe
irq20: nfe0 ohci0 1 0
nfe0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
options=48<VLAN_MTU,POLLING>
ether 00:04:61:6c:76:b1
inet 192.168.200.137 netmask 0xffffff00 broadcast 192.168.200.255
media: Ethernet autoselect (100baseTX <full-duplex>)
status: active
I can reproduce it regardless polling presence.
nfe0@pci0:0:4:0: class=0x020000 card=0x10001695 chip=0x006610de
rev=0xa1 hdr=0x00
wbr,
pluknet
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