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My NIC driver, which is writed by myself, didn't pass high pressure test!

I writed a shell script in which the key commands are "scp" to test the driver under high pressure. The shell script...

Hi, all:

My writed NIC driver for rtl8139d adapter on linux 3.0.4 cannot send and recieve simultaneously but is able to send or recieve in parallel respectively. As soon as it send and recieve at...

Hi, all:

My writed NIC driver for rtl8139d adapter on linux 3.0.4 cannot send and recieve simultaneously but is able to send or recieve in parallel respectively. As soon as it send and recieve at...

Hi,all:

Why they(one PC and a notebook) report bing in offline state?

I directly link a PC with one notebook with a cross cable and all of them are on ubuntu 10.4.0.The only difference is that...

set to 8192Kb/s is also the same as its original, still "stalled".

---------- Post updated at 07:29 AM ---------- Previous update was at 07:27 AM ----------




Thanks and how to use verbose...

Dear Mirni:

Thanks for your suggestion, but it isn't the reason of this trouble! I use "scp -l 16384 src des" in both directions, the rate 16384b/s is far below the average rate "5MB/s" of...

Dear Mirni:

thanks!

The bug causing the "Broken pipe" has already digged out, which is because of the concurrency of sending and interrupt. Now the sending actions can run in parallel and so...

Hi, all:

The physical network interface card should drop the packets if it doesn't match the MAC address of the NIC. In my PC, however, the packets which shoud be dropped trigger the interrupt...

Hi, all:

In linux 3.0.4, can "netif_queue_stopped" function check wether or not the net device queue is stopped? How could I know wether a net device queue is stopped or not?


li,kunlun

Hi:

One file sending PC, one file recieving PC, connected by ether net which is used for test. The sending PC use "scp" command to send the data file to the recieving PC and no other sending or...

As your guess, Is the "close" operation on the same PC sending file or on the other PC which recieves the sended file?

The "write failed: Broken pipe" message is reported by the file sending PC which run my writed network device driver while 500MB or 900MB is sended!

What does the message mean? Does this mean...

Dear Corona688:

Thanks for your help! You are crrect! The "map file" isn't the reason causing system crash!

I have already digged the bug!


thanks!
li,kunlun

Hi, all:

One end of two PC connected by a cross cable report the following:

root@likunlun-desktop:~# scp ./kbs root@192.168.5.204:/home/liklstar
root@192.168.5.204's password:
kbs ...

Hi, all:

My writed network device driver works fine when the transmitted file is under several MegaBytes, but above this size, especially dozens of or hundreds of MegaBytes, the kernel panic...

Hi, all:

The vmlinuz-3.0.4.old is a kernel previous to the current running kernel vmlinuz-3.0.4 which is compiled the most currently. Could I get the initrd.img-3.0.4.old without recompile...

Yestoday, in order to analysis the core dump information which is a result of my bugged device driver, I configurate and make the kernel according to "Documentation/kdump/kdump.txt" in linux source...

My system is linux 3.0.4 on X86.

li, kunlun

Hi, all:

How should I obtain the reason of kernel panic?

How should I debug the program which result in a kernel panic?

What can I get from the panic information?


li, kunlun

Hi, all:

How can I check what happen with my own NIC driver which response "successful" when local PC "ping" a remote linux PC but "unreachable" when it "ping" a remote windows XP PC? My writed...

Hi, all:

thanks a lot!

I have already resolved the problem! Since I stop the device queue under wrong conditions my driver cannot send the messages out! Now everything is OK.

thanks!
li,...

Hi, Corona688:

I writed a rtl8139 device driver and now I am debugging it. The initiating, openning, stopping and interrupting part of this driver have already passed.


li, kunlun

Thanks!

My kernel is linux 3.0.4, and follwing is the information to you:

02:00.0 Ethernet controller: Atheros Communications AR8131 Gigabit Ethernet (rev c0)
03:02.0 Ethernet controller:...

Dear Corona688:

No! I agree with you that there is no difference with "not working at all"! Since I remove the 8139too driver, the 8139cp driver and atl1c driver, there is no other NIC driver on...

Hi, all:

How can I know whether the packets recieved from network by my own NIC driver are transmitted to upper layer(IP layer) or not?

How can I know if the packets come from upper layer...