Hello All,
I am using RealTek8139 diver version 0.9.2 NIC on RH 9.0 machine.It's 100mbps NIC .But I am getting lot of interrupts and hangups at work.I have checked logs and I found this
Shehh#dmesg
eth0: Too much work at interrupt, IntrStatus=0x0010.
eth0: Too much work at interrupt, IntrStatus=0x0010.
eth0: Too much work at interrupt, IntrStatus=0x0010.
eth0: Too much work at interrupt, IntrStatus=0x0010.
eth0: Too much work at interrupt, IntrStatus=0x0010.
eth0: Too much work at interrupt, IntrStatus=0x0010.
eth0: Too much work at interrupt, IntrStatus=0x0010.
eth0: Too much work at interrupt, IntrStatus=0x0010.
eth0: Too much work at interrupt, IntrStatus=0x0010.
eth0: Too much work at interrupt, IntrStatus=0x0010.
This my kernel booting says:
My logs say:
Jul 7 16:44:04 server kernel: t interrupt, IntrStatus=0x0010.
Jul 7 16:44:04 server kernel: eth0: Too much work at interrupt, IntrStatus=0x00
10.
Jul 7 16:44:05 server last message repeated 291 times
Jul 7 16:44:05 server kernel: eth0: Too much work at interrupt, IntrStatus=0x00
41
***************************************
I have tried to increase the value of max_interrupt_wotk =40 from 20 but it dosen't work at all.Now What should I do ?NIC replacement will be the last option.I have to make it 10mbps from 100mbps.I think it is too fast for my machie.
But how should I do that?
OR else any other solution?
Thanks

Hello. I fixed the problem. One of my computers, which is the router, had two (rtl 8139 chip) ethernet cards. They were using the same driver: 8139too.o

The error message: Too much work at interrupt, IntrStatus=0
, is coming from the driver 8139too

After a quick look at the source code, you can see that one of the functions can only be executed 20 times in a short time.

static int max_interrupt_work = 20;
int boguscnt = max_interrupt_work;
......
boguscnt--; // REMOVE -1 FROM BOGUSCNT
} while (boguscnt > 0);

if (boguscnt <= 0) {
printk (KERN_WARNING "%s: Too much work at interrupt, "
"IntrStatus=0x%4.4x.\n", dev->name, status);
......

Maybe the driver is wrongly coded.
I replaced one of the two cards. I have put a rtl 8029 chip card. So they aren't using the same driver.
Now everything work fine, no more error messages. And now I can upload faster than in the past. I was unable to upload faster than 2 kbytes/s when I was having the error message. Now it's at 103kbytes/s!

Sorry for my english, I speak french =)