Sridhar Samudrala wrote:
>> The corruption is triggered after about 10 minutes of running the following
>> script:
>>
>> nfspath = $1
>> localpath = $2
>> while true; do
>>      mount "$nfspath" "$localpath"
>>      sleep 5
>>      cp /boot/vmlinuz "$localpath"
>>      sleep 5
>>      rm $localpath/vmlinuz
>>      sleep 5
>>      umount "$localpath"
>> done
>>
>>
>> And looks like this:
>>
>> sk2 might be corrupt.  Info:
>>         sk2 = ffff8100f004d080
>>         tb->port = 844
>>         inet_sk(sk2)->num = 61695
>>         inet_sk(sk2)->foo = 24242424243f243f
>>         inet_sk(sk2)->bar = 3f24243f
>> BUG: at net/ipv4/inet_connection_sock.c:58 inet_csk_bind_conflict()
>>
>> Call Trace:
>>  [<ffffffff803cc591>] inet_csk_bind_conflict+0xcb/0x178
>>  [<ffffffff803cc4c6>] inet_csk_bind_conflict+0x0/0x178
>>  [<ffffffff803cc2ff>] inet_csk_get_port+0x11a/0x1ef
>>  [<ffffffff803ddf51>] inet_bind+0x117/0x1f5
>>  [<ffffffff88184e13>] :sunrpc:xs_bindresvport+0x4e/0xbf
>>  [<ffffffff881853a4>] :sunrpc:xs_tcp_connect_worker+0x0/0x2a0
>>  [<ffffffff88185433>] :sunrpc:xs_tcp_connect_worker+0x8f/0x2a0
> 
> If you are using NFS over UDP, why is a TCP routine
> getting called by sunrpc?

No clue. ;)  My guess is that is has something to do with RPC
itself, but this is the question I keep asking myself as well.
I don't have an answer for it yet.

Just for completeness, here is the mount line from fstab:

host:/export   /mnt      nfs 
soft,noatime,rsize=8192,wsize=8192,timeo=14,intr,auto 0     0

-vlad

> 
>>  [<ffffffff80248bd3>] run_workqueue+0x8f/0x137
>>  [<ffffffff80245687>] worker_thread+0x0/0x14a
>>  [<ffffffff8024579b>] worker_thread+0x114/0x14a
>>  [<ffffffff8027e544>] default_wake_function+0x0/0xe
>>  [<ffffffff8022ff49>] kthread+0xd1/0x100
>>  [<ffffffff80258f68>] child_rip+0xa/0x12
>>  [<ffffffff8022fe78>] kthread+0x0/0x100
>>  [<ffffffff80258f5e>] child_rip+0x0/0x12

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