[realtek] Ping doesn't respond anymore after 5 good tests (Driver 1.12)
Alain SMEDTS
alain_smedts@hotmail.com
Mon, 8 Jan 2001 21:15:51 +0100
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hereby attached my /var/log/debug file after a reboot (with debug=7). I did
a ping which failed after some good responses.
Kind regards,
Alain
----- Original Message -----
From: "Donald Becker" <becker@scyld.com>
To: "Alain SMEDTS" <alain_smedts@hotmail.com>
Cc: <realtek@scyld.com>
Sent: Saturday, January 06, 2001 2:31 AM
Subject: Re: [realtek] Ping doesn't respond anymore after 5 good tests
On Fri, 5 Jan 2001, Alain SMEDTS wrote:
> Hereby the output of ping (stopped with Ctrl C):
> # ping 172.17.4.100
> PING 172.17.4.100 (172.17.4.100): 56 data bytes
> 64 bytes from 172.17.4.100: icmp_seq=0 ttl=128 time=0.8 ms
> 64 bytes from 172.17.4.100: icmp_seq=1 ttl=128 time=0.2 ms
> 64 bytes from 172.17.4.100: icmp_seq=2 ttl=128 time=0.3 ms
> 64 bytes from 172.17.4.100: icmp_seq=3 ttl=128 time=0.3 ms
> --- 172.17.4.100 ping statistics ---39 packets transmitted, 4 packets
> received, 89% packet loss
Presumably the interface is hosed at this point..
> The Compaq is a Pentium 100 Mhz system with 32Mb memory.
That's an old, relatively slow system with a v1.0 PCI bus. But the rtl8139
should still work.
> In /var/log/messages I find the following messages occasionaly:
> Jan 5 07:58:48 Volcanus kernel: eth1: Oversized Ethernet frame, status
> 31302f2e!
This is reporting
3130xxxx Packet size 0x3130, or >12KB!
2000 Broadcast packet (curious, since ARP presumably happened before now)
0f00 Unused bits
0020 Invalid symbol
0008 Over-long packet
0004 CRC error
0002 alignment error
So this is reporting a monsterously large packet on the wire. I would
normally assume that the Rx data ring pointer had been corrupted, but the
error bits make sense for some transceiver-level Bad Thing.
What does rtl8139 report after the Rx stops?
> This is the output of the driver:
> Jan 5 08:16:54 Volcanus kernel:
http://www.scyld.com/network/rtl8139.html
> Jan 5 08:16:54 Volcanus kernel: eth1: SMC1211TX EZCard 10/100 (RealTek
> RTL8139) at 0x7100, IRQ 5, 00:10:b5:03:63:1d.
This is version 1.12, correct?
> > I used rtl8139.o delivered with Slackware, it is version 1.07. I
upgraded
> > to RTL8139 v1.12, but the problem is the same. I tried three different
NIC
...
> > ENW-9500). Those NIC work fine in another Linux box with the same
> > drivers.
> I tried with debug=7 and then I can ping without any problems (stopped it
> after more than 400 good packages). However this isn't a permanent
solution
> as the response times are rather high. I didn't find any debug messages in
> /var/log/messages, or is this debug info put in another file?
I put the following line in /etc/syslog.conf
kern.debug;*.debug;*.* -/var/log/debug
Donald Becker becker@scyld.com
Scyld Computing Corporation http://www.scyld.com
410 Severn Ave. Suite 210 Second Generation Beowulf Clusters
Annapolis MD 21403 410-990-9993
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