Subject: Re: kern/29531: Active FTP support with NAT causes panic
To: None <,,>
From: Arto Selonen <>
List: netbsd-bugs
Date: 02/26/2005 09:25:01
The following reply was made to PR kern/29531; it has been noted by GNATS.

From: Arto Selonen <>
Subject: Re: kern/29531: Active FTP support with NAT causes panic
Date: Sat, 26 Feb 2005 11:24:22 +0200 (EET)

 On Sat, 26 Feb 2005 wrote:
 >> Number:         29531
 >> Category:       kern
 >> Synopsis:       Active FTP support with NAT causes panic
 >> Confidential:   no
 >> Severity:       serious
 >> Priority:       medium
 >> Description:
 >        I'm using this machine as a NAT, and the related settings are:
 >        map vr0 -> 0/32 proxy port ftp ftp/tcp
 >        map vr0 -> 0/32 portmap tcp/udp 40000:60000
 >        map vr0 -> 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:
 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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