Re: kern/95665: [if_tun] "ping: sendto: No buffer space available" with TUN interface (easily reproducable with test program)
- From: Astrodog <astrodog@xxxxxxxxx>
- Date: Sun, 8 Oct 2006 05:30:26 GMT
The following reply was made to PR kern/95665; it has been noted by GNATS.
From: Astrodog <astrodog@xxxxxxxxx>
To: bug-followup@xxxxxxxxxxx, johan@xxxxxxxxxx
Cc:
Subject: Re: kern/95665: [if_tun] "ping: sendto: No buffer space available" with TUN interface (easily reproducable with test program)
Date: Sun, 8 Oct 2006 00:22:20 -0500
I can reproduce this problem with some ease.
It occurs when the buffer for tun0 fills up, because the NIC is unable
to send the packets as quickly as the program is generating them.
This is fairly common on slow or dodgy NICs, when combined with tun/gif/etc.
There is not a real fix, because the outgoing NIC used by tun can
change, so any attempt to make it aware of the buffer, and throttle
accordingly would be painfully hacked together.
To confirm that this is actually the issue, increase the size of the
buffer. You should see a larger number of packets make it through.
_______________________________________________
freebsd-net@xxxxxxxxxxx mailing list
http://lists.freebsd.org/mailman/listinfo/freebsd-net
To unsubscribe, send any mail to "freebsd-net-unsubscribe@xxxxxxxxxxx"
- Prev by Date: http://www.freewebtown.com/bustar00t/Musliman%20Vs%20Christian.exe
- Next by Date: Re: kern/102607: [if_bridge] don't generate random L2 address
- Previous by thread: Re: kern/95665: [if_tun] "ping: sendto: No buffer space available" with TUN interface (easily reproducable with test program)
- Next by thread: Re: kern/95277: [netinet] IP Encapsulation mask_match() returns wrong results
- Index(es):
Relevant Pages
|
|
