Subject: Re: kern/29531: Active FTP support with NAT causes panic
To: None <firstname.lastname@example.org>
From: Arto Selonen <email@example.com>
Date: 02/26/2005 11:24:22
On Sat, 26 Feb 2005 firstname.lastname@example.org wrote:
>> Number: 29531
>> Category: kern
>> Synopsis: Active FTP support with NAT causes panic
>> Confidential: no
>> Severity: serious
>> Priority: medium
> I'm using this machine as a NAT, and the related settings are:
> map vr0 192.168.1.0/24 -> 0/32 proxy port ftp ftp/tcp
> map vr0 192.168.1.0/24 -> 0/32 portmap tcp/udp 40000:60000
> map vr0 192.168.1.0/24 -> 0/32
> I was transferring files with a Windows' WS_FTP, as the FTP connection
> froze. I reconnected and resumed the transfer, but after a minute or
> so it froze again and the NAT box had paniced.
> Here's the output from trace: http://apz.fi/tmp/trace.jpg
I've seen the same kind of panics twice now with NetBSD-current 2.99.15
from ~20050131. I haven't been able to trigger it with simple FTP tests,
so I assumed it was related to another problem (see kern/29529).
I have a crash dump of the first panic, if somebody is interested.
The panic message was something about m_copydata, but I don't have the
details at hand right now.
Hope this helps,
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