I am using 2.4.16 with xfs patch from SGI. It may not be the acenic
driver problem, I can reproduce the deadlock in a 100 base-T network
using eepro100 driver. Closing the server did not release the deadlock.
What else can I try?
From: Steven Whitehouse [mailto:email@example.com]
Sent: Monday, May 06, 2002 4:46 AM
To: chen, xiangping
Subject: Re: Kernel deadlock using nbd over acenic driver.
What kernel version are you using ? I suspect that its not the ethernet
driver causing this deadlock. Am I right in thinking that if you kill the
nbd server process that the hanging process is released ?
> I encounter a deadlock situation when using nbd device over gigabit
> ethernet. The network card is 3c 985 giga card using acenic driver. When
> network has some significant back ground traffic, even making a ext2 file
> system can not succeed. When the deadlock happens, the nbd client daemon
> just stuck in tcp_recvmsg() without receiving any data, and the sender
> threads continue to send out requests until the whole system hangs. Even I
> set the nbd client daemon SNDTIMEO, the nbd client daemon could not exit
> from tcp_recvmsg().
> Is there any known problem with the acenic driver? How can I identify it
> a problem of the NIC driver, or somewhere else?
> Thanks for help!
> Xiangping Chen
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