Debian Bug report logs - #490827
memory corruption on x86_64

Toggle useless messages

Message #5 received at submit@bugs.debian.org (full text, mbox, reply):

From: "Achim Schaefer" <achim_schaefer@gmx.de>

To: submit@bugs.debian.org

Subject: SEQV in um_add_service lwipv6

Date: Mon, 14 Jul 2008 17:07:48 +0200

Package: umview-mod-umlwip
Version: 0.5-2
Severity: important

after starting
umview xterm
 and running
um_add_service lwipv6
I run:
ip addr
Cannot open netlink socket: Function not implemented

as soon as I quite the xterm (exit) I see on the console starting the xterm the following report:

This kernel supports: ppoll
UMView will use: ppoll

lwipv6 init
*** glibc detected *** umview: free(): invalid next size (fast): 0x0000000001ff8b80 *** ======= Backtrace: ========= /lib/libc.so.6[0x7f1f24315978] /lib/libc.so.6(cfree+0x76)[0x7f1f24317a86]
/usr/lib/umview/modules/lwipv6.so[0x7f1f240a036c]
/usr/lib/umview/modules/lwipv6.so[0x7f1f240a025f]
======= Memory map: ========
00400000-0041e000 r-xp 00000000 fd:04 177284                             /usr/bin/umview
0061e000-00621000 rw-p 0001e000 fd:04 177284                             /usr/bin/umview
00621000-00622000 rw-p 00621000 00:00 0
01ff6000-02017000 rw-p 01ff6000 00:00 0                                  [heap]
4074c000-4074d000 ---p 4074c000 00:00 0
4074d000-40f4d000 rw-p 4074d000 00:00 0
7f1f1c000000-7f1f1c021000 rw-p 7f1f1c000000 00:00 0 7f1f1c021000-7f1f20000000 ---p 7f1f1c021000 00:00 0
7f1f2342b000-7f1f23441000 r-xp 00000000 fd:04 1403607                    /lib/libgcc_s.so.1
7f1f23441000-7f1f23641000 ---p 00016000 fd:04 1403607                    /lib/libgcc_s.so.1
7f1f23641000-7f1f23642000 rw-p 00016000 fd:04 1403607                    /lib/libgcc_s.so.1
7f1f23642000-7f1f2366d000 r-xp 00000000 fd:04 167874                     /usr/lib/libpcap.so.0.9.8
7f1f2366d000-7f1f2386d000 ---p 0002b000 fd:04 167874                     /usr/lib/libpcap.so.0.9.8
7f1f2386d000-7f1f2386e000 rw-p 0002b000 fd:04 167874                     /usr/lib/libpcap.so.0.9.8
7f1f2386e000-7f1f2386f000 rw-p 7f1f2386e000 00:00 0
7f1f2386f000-7f1f23871000 r-xp 00000000 fd:04 1405393                    /lib/libutil-2.7.so
7f1f23871000-7f1f23a70000 ---p 00002000 fd:04 1405393                    /lib/libutil-2.7.so
7f1f23a70000-7f1f23a72000 rw-p 00001000 fd:04 1405393                    /lib/libutil-2.7.so
7f1f23a72000-7f1f23a76000 r-xp 00000000 fd:04 166347                     /usr/lib/libvdeplug.so.2.1.0
7f1f23a76000-7f1f23c75000 ---p 00004000 fd:04 166347                     /usr/lib/libvdeplug.so.2.1.0
7f1f23c75000-7f1f23c76000 rw-p 00003000 fd:04 166347                     /usr/lib/libvdeplug.so.2.1.0
7f1f23c76000-7f1f23c77000 r-xp 00000000 fd:04 175805                     /usr/lib/libumlib.so.0.0.0
7f1f23c77000-7f1f23e77000 ---p 00001000 fd:04 175805                     /usr/lib/libumlib.so.0.0.0
7f1f23e77000-7f1f23e78000 rw-p 00001000 fd:04 175805                     /usr/lib/libumlib.so.0.0.0
7f1f23e78000-7f1f23e9d000 r-xp 00000000 fd:04 571228                     /usr/lib/liblwipv6.so.2.0.0
7f1f23e9d000-7f1f2409d000 ---p 00025000 fd:04 571228                     /usr/lib/liblwipv6.so.2.0.0
7f1f2409d000-7f1f2409e000 rw-p 00025000 fd:04 571228                     /usr/lib/liblwipv6.so.2.0.0
7f1f2409e000-7f1f2409f000 rw-p 7f1f2409e000 00:00 0
7f1f2409f000-7f1f240a1000 r-xp 00000000 fd:04 490802                     /usr/lib/umview/modules/lwipv6.so
7f1f240a1000-7f1f242a1000 ---p 00002000 fd:04 490802                     /usr/lib/umview/modules/lwipv6.so
7f1f242a1000-7f1f242a2000 rw-p 00002000 fd:04 490802                     /usr/lib/umview/modules/lwipv6.so
7f1f242a2000-7f1f243ec000 r-xp 00000000 fd:04 1405366                    /lib/libc-2.7.so
7f1f243ec000-7f1f245ec000 ---p 0014a000 fd:04 1405366                    /lib/libc-2.7.so
7f1f245ec000-7f1f245ef000 r--p 0014a000 fd:04 1405366                    /lib/libc-2.7.so
7f1f245ef000-7f1f245f1000 rw-p 0014d000 fd:04 1405366                    /lib/libc-2.7.so
7f1f245f1000-7f1f245f6000 rw-p 7f1f245f1000 00:00 0
7f1f245f6000-7f1f245f8000 r-xp 00000000 fd:04 1405370                    /lib/libdl-2.7.so
7f1f245f8000-7f1f247f8000 ---p 00002000 fd:04 1405370                    /lib/libdl-2.7.so
7f1f247f8000-7f1f247fa000 rw-p 00002000 fd:04 1405370                    /lib/libdl-2.7.so
7f1f247fa000-7f1f24810000 r-xp 00000000 fd:04 1405373                    /lib/libpthread-2.7.so
7f1f24810000-7f1f24a10000 ---p 00016000 fd:04 1405373                    /lib/libpthread-2.7.so
7f1f24a10000-7f1f24a12000 rw-p 00016000 fd:04 1405373                    /lib/libpthread-2.7.so
7f1f24a12000-7f1f24a16000 rw-p 7f1f24a12000 00:00 0
7f1f24a16000-7f1f24a32000 r-xp 00000000 fd:04 1405362                    /lib/ld-2.7.so
7f1f24bbd000-7f1f24c110Segmentation fault

--
Psssst! Schon vom neuen GMX MultiMessenger gehört?
Der kann`s mit allen: http://www.gmx.net/de/go/multimessenger


-- 
Ist Ihr Browser Vista-kompatibel? Jetzt die neuesten 
Browser-Versionen downloaden: http://www.gmx.net/de/go/browser

Message #10 received at 490827@bugs.debian.org (full text, mbox, reply):

From: Ludovico Gardenghi <garden@acheronte.it>

To: Achim Schaefer <achim_schaefer@gmx.de>, 490827@bugs.debian.org

Subject: Re: [Pkg-vsquare-devel] Bug#490827: SEQV in um_add_service lwipv6

Date: Mon, 14 Jul 2008 19:08:46 +0200

tags 490827 + upstream confirmed
thanks

On Mon, Jul 14, 2008 at 05:07:48PM +0200, Achim Schaefer wrote:

> lwipv6 init
[...]
> 7f1f24bbd000-7f1f24c110Segmentation fault

Do you have netlink sockets support compiled in your kernel?

Nevertheless, I agree, lwipv6 seems to be broken on amd64. JFYI, the
"lwipv6" umview module has been recently superseded by umnetlwipv6.
Please take a look at
http://wiki.virtualsquare.org/index.php/UMNET_modules#umnetlwipv6 for
the new module (that is a sub-module of the umview module "umnet").
Unfortunately, it seems to be broken too.

I will work on this.

Thanks,
Ludovico
-- 
<garden@acheronte.it>        #acheronte (irc.freenode.net) ICQ: 64483080
GPG ID: 07F89BB8          Jabber: gardengl@gmail.com Yahoo: gardenghelle
-- This is signature nr. 4085

Message #17 received at 490827@bugs.debian.org (full text, mbox, reply):

From: "Achim Schaefer" <achim_schaefer@gmx.de>

To: 490827@bugs.debian.org, "Ludovico Gardenghi" <garden@acheronte.it>

Subject: Re: [Pkg-vsquare-devel] Bug#490827: SEQV in um_add_service lwipv6

Date: Tue, 15 Jul 2008 10:49:09 +0200

> Do you have netlink sockets support compiled in your kernel?
I use the standard debian kernel
debian64:~# dpkg -l linux-image-2.6.25-2-amd64
Desired=Unknown/Install/Remove/Purge/Hold
| Status=Not/Inst/Cfg-files/Unpacked/Failed-cfg/Half-inst/trig-aWait/Trig-pend
|/ Err?=(none)/Hold/Reinst-required/X=both-problems (Status,Err: uppercase=bad)
||/ Name                             Version                          Description
+++-================================-================================-================================================================================
ii  linux-image-2.6.25-2-amd64       2.6.25-7                         Linux 2.6.25 image on AMD64


I could not find the config option you refer to, but as the default kernel has more or less everything enabled, I would assume:
yes I have.

>the "lwipv6" umview module has been recently superseded by umnetlwipv6
I'll have a look at that, but did not understand till now exactly how to use it.
(The wiki is very short)

>I will work on this.
Thanks

AChim



-- 
Psssst! Schon vom neuen GMX MultiMessenger gehört?
Der kann`s mit allen: http://www.gmx.net/de/go/multimessenger

Message #22 received at 490827@bugs.debian.org (full text, mbox, reply):

From: Ludovico Gardenghi <garden@acheronte.it>

To: Achim Schaefer <achim_schaefer@gmx.de>

Cc: 490827@bugs.debian.org

Subject: Re: [Pkg-vsquare-devel] Bug#490827: SEQV in um_add_service lwipv6

Date: Mon, 21 Jul 2008 12:25:50 +0200

reassign 490827 liblwipv6-2
retitle 490827 memory corruption on x86_64
thanks

On Tue, Jul 15, 2008 at 10:49:09AM +0200, Achim Schaefer wrote:

> >I will work on this.
> Thanks

This is really a problem in liblwipv6-2, so I'm reassigning the bug.

I'll hopefully release a fixed version in a few days time.

Ludovico
-- 
<garden@acheronte.it>        #acheronte (irc.freenode.net) ICQ: 64483080
GPG ID: 07F89BB8          Jabber: gardengl@gmail.com Yahoo: gardenghelle
-- This is signature nr. 4099

Message #33 received at 490827-close@bugs.debian.org (full text, mbox, reply):

From: Ludovico Gardenghi <garden@acheronte.it>

To: 490827-close@bugs.debian.org

Subject: Bug#490827: fixed in lwipv6 1.2a-1

Date: Wed, 23 Jul 2008 15:17:04 +0000

Source: lwipv6
Source-Version: 1.2a-1

We believe that the bug you reported is fixed in the latest version of
lwipv6, which is due to be installed in the Debian FTP archive:

liblwipv6-2_1.2a-1_amd64.deb
  to pool/main/l/lwipv6/liblwipv6-2_1.2a-1_amd64.deb
liblwipv6-dev_1.2a-1_amd64.deb
  to pool/main/l/lwipv6/liblwipv6-dev_1.2a-1_amd64.deb
lwipv6_1.2a-1.diff.gz
  to pool/main/l/lwipv6/lwipv6_1.2a-1.diff.gz
lwipv6_1.2a-1.dsc
  to pool/main/l/lwipv6/lwipv6_1.2a-1.dsc
lwipv6_1.2a.orig.tar.gz
  to pool/main/l/lwipv6/lwipv6_1.2a.orig.tar.gz



A summary of the changes between this version and the previous one is
attached.

Thank you for reporting the bug, which will now be closed.  If you
have further comments please address them to 490827@bugs.debian.org,
and the maintainer will reopen the bug report if appropriate.

Debian distribution maintenance software
pp.
Ludovico Gardenghi <garden@acheronte.it> (supplier of updated lwipv6 package)

(This message was generated automatically at their request; if you
believe that there is a problem with it please contact the archive
administrators by mailing ftpmaster@debian.org)


-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

Format: 1.8
Date: Mon, 21 Jul 2008 17:24:48 +0200
Source: lwipv6
Binary: liblwipv6-dev liblwipv6-2
Architecture: source amd64
Version: 1.2a-1
Distribution: unstable
Urgency: low
Maintainer: Debian VSquare Team <pkg-vsquare-devel@lists.alioth.debian.org>
Changed-By: Ludovico Gardenghi <garden@acheronte.it>
Description: 
 liblwipv6-2 - User level (lightweight) TCP/IP stack with IPv6 support
 liblwipv6-dev - Development files for the LWIPv6 library
Closes: 490827
Changes: 
 lwipv6 (1.2a-1) unstable; urgency=low
 .
   * New upstream release
     + Fixed type errors on amd64 (Closes: #490827)
Checksums-Sha1: 
 577000c327f4e1461a22994d0c9ca24832339ccc 1338 lwipv6_1.2a-1.dsc
 d1360962ca057a6b575a7962ac1f693ab09ea2b5 573220 lwipv6_1.2a.orig.tar.gz
 d21696d9caf2731f7f1220c2193e5b542c80ebef 3302 lwipv6_1.2a-1.diff.gz
 d15f63bb497b5179061e8889ad59a74bb2a1c7ed 97210 liblwipv6-dev_1.2a-1_amd64.deb
 f4dcaea8c3d1810cf85244da907c46b36fe011c3 78266 liblwipv6-2_1.2a-1_amd64.deb
Checksums-Sha256: 
 1d7992753ba8352158cc30eb4360d6de1daf10d686885f434f6ee904184da846 1338 lwipv6_1.2a-1.dsc
 126f7ad482ab0895527ce6ab49f4a725ae4ad536e988ec452a709c81bde01bf1 573220 lwipv6_1.2a.orig.tar.gz
 9d31d5ddceb17bccb9cd272895f235380657b18fa7d5a807dff797177f8b90fd 3302 lwipv6_1.2a-1.diff.gz
 09d7f44bd026fdbfaab8d54d5b06526e4af445edc41edcc1d05498658d59ff3f 97210 liblwipv6-dev_1.2a-1_amd64.deb
 4026362bde621d689721ec131b676de3723214a14815620ea48fc08a37602300 78266 liblwipv6-2_1.2a-1_amd64.deb
Files: 
 91948f827408582bab52183cd17c5cd1 1338 libs optional lwipv6_1.2a-1.dsc
 c43f81947595dc31ce1560a08797858a 573220 libs optional lwipv6_1.2a.orig.tar.gz
 709de70181dddbba28e99968fb68fe9f 3302 libs optional lwipv6_1.2a-1.diff.gz
 7437cc0d333ffb86f969dda3f63e9924 97210 libdevel optional liblwipv6-dev_1.2a-1_amd64.deb
 f141129a798eaf96eab05e611becd4d1 78266 libs optional liblwipv6-2_1.2a-1_amd64.deb

-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.9 (GNU/Linux)

iEYEARECAAYFAkiHSQ0ACgkQABzeamt51AGDUgCfT+vLTvxY3hQymJZxGeSA/5ZM
cMcAoJlOyT94u0SeNqXOHu6roorhSgbR
=4N6b
-----END PGP SIGNATURE-----

Message #38 received at 490827@bugs.debian.org (full text, mbox, reply):

From: Ludovico Gardenghi <garden@acheronte.it>

To: Achim Schaefer <achim_schaefer@gmx.de>

Cc: 490827@bugs.debian.org

Subject: Re: [Pkg-vsquare-devel] Bug#490827: Bug#490827: SEQV in um_add_service lwipv6

Date: Wed, 23 Jul 2008 18:37:16 +0200

On Mon, Jul 21, 2008 at 12:25:50PM +0200, Ludovico Gardenghi wrote:

> I'll hopefully release a fixed version in a few days time.

I've just uploaded release 1.2a of lwipv6 that should work fine on
adm64.

umlwip is still broken, but it's being deprecated so I think it will not
be fixed.

However, this should be the "new way" and should work:

um_add_module umnet
mount -t umnetlwipv6 none /dev/net/default

Adnd, from this point onwards, things should be the same as in umlwip. I
know that the wiki is not very verbose but try to look around, you
should find enough information to configure umnetlwipv6 properly (i.e.
defining which vde_switch it should connect and so on).

Feel free to write me (or the virtualsquare team) for more information.
You can also try to visit #virtualsquare IRC channel on FreeNode.

Ludovico
-- 
<garden@acheronte.it>        #acheronte (irc.freenode.net) ICQ: 64483080
GPG ID: 07F89BB8          Jabber: gardengl@gmail.com Yahoo: gardenghelle
-- This is signature nr. 4112

Message #43 received at 490827@bugs.debian.org (full text, mbox, reply):

From: "Achim Schaefer" <achim_schaefer@gmx.de>

To: 490827@bugs.debian.org, "Ludovico Gardenghi" <garden@acheronte.it>

Subject: reopen?

Date: Thu, 24 Jul 2008 09:35:45 +0200

Hi,

I installed the new version and tried again:
achim@debian64:~$ dpkg -l liblwipv6-2
Desired=Unknown/Install/Remove/Purge/Hold
| Status=Not/Inst/Cfg-files/Unpacked/Failed-cfg/Half-inst/trig-aWait/Trig-pend
|/ Err?=(none)/Hold/Reinst-required/X=both-problems (Status,Err: uppercase=bad)
||/ Name                             Version                          Description
+++-================================-================================-================================================================================
ii  liblwipv6-2                      1.2a-1                           User level (lightweight) TCP/IP stack with IPv6 support
achim@debian64:~$ umview -p lwipv6 bash
This kernel supports: ppoll
UMView will use: ppoll

lwipv6 init
Segmentation fault
achim@debian64:~$

Unfortunatly I don't get the stacktrace any more even when using xterm.

Achim
-- 
Psssst! Schon das coole Video vom GMX MultiMessenger gesehen?
Der Eine für Alle: http://www.gmx.net/de/go/messenger03

Message #48 received at 490827@bugs.debian.org (full text, mbox, reply):

From: Ludovico Gardenghi <garden@acheronte.it>

To: Achim Schaefer <achim_schaefer@gmx.de>

Cc: 490827@bugs.debian.org

Subject: Re: reopen?

Date: Thu, 24 Jul 2008 09:54:00 +0200

On Thu, Jul 24, 2008 at 09:35:45AM +0200, Achim Schaefer wrote:

> achim@debian64:~$ umview -p lwipv6 bash

Please try the umnet module, as I wrote you in my last email yesterday
(have you received it? If not, I'll resend it).

umview -p umnet bash
mount -t umnetlwipv6 none /dev/net/default

The module umlwipv6 is obsolete now and is replaced by umnet +
umnetlwipv6, so we won't fix it.

Ludovico
-- 
<garden@acheronte.it>        #acheronte (irc.freenode.net) ICQ: 64483080
GPG ID: 07F89BB8          Jabber: gardengl@gmail.com Yahoo: gardenghelle
-- This is signature nr. 4114

Message #53 received at 490827@bugs.debian.org (full text, mbox, reply):

From: "Achim Schaefer" <achim_schaefer@gmx.de>

To: "Ludovico Gardenghi" <garden@acheronte.it>

Cc: 490827@bugs.debian.org

Subject: Re: reopen?

Date: Thu, 24 Jul 2008 10:23:41 +0200

>Please try the umnet module, 
umnet works.
>as I wrote you in my last email yesterday (have you received it? If not, I'll resend it).
Yesterday I only got the bug close message, if you refer to this, yes, otherwise : no.
In the bug close message I don't find anything important about umnet.

>The module umlwipv6 is obsolete now and is replaced by umnet + umnetlwipv6, so we won't fix it.
Bad luck.
This method was more obvious for me, as well as the wiki still has the howto's with the old method.
I saw the new method in the "Documentation in progress" part, but it is not as good as the obsolete part.
I'll try the umnet version next week in more details. (Especially if it works like I expected it to work. Let's see.)

Thanks

Achim

-- 
Der GMX SmartSurfer hilft bis zu 70% Ihrer Onlinekosten zu sparen! 
Ideal für Modem und ISDN: http://www.gmx.net/de/go/smartsurfer

Message #58 received at 490827@bugs.debian.org (full text, mbox, reply):

From: Ludovico Gardenghi <garden@acheronte.it>

To: Achim Schaefer <achim_schaefer@gmx.de>

Cc: 490827@bugs.debian.org

Subject: Re: reopen?

Date: Thu, 24 Jul 2008 11:26:43 +0200

On Thu, Jul 24, 2008 at 10:23:41AM +0200, Achim Schaefer wrote:


> >as I wrote you in my last email yesterday (have you received it? If
> >not, I'll resend it).
> Yesterday I only got the bug close message, if you refer to this, yes,
> otherwise : no.  In the bug close message I don't find anything
> important about umnet.

Haven't you received this: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=490827#38 ?

?

> >The module umlwipv6 is obsolete now and is replaced by umnet +
> >umnetlwipv6, so we won't fix it.
> Bad luck.  This method was more obvious for me, as well as the wiki
> still has the howto's with the old method.  I saw the new method in
> the "Documentation in progress" part, but it is not as good as the
> obsolete part.

Apart from the initial phase (the module name and a "mount") if you
mount the stack over /dev/net/default there are no differences with the
previous approach.

The line

$ um_add_service lwipv6,vd0=/tmp/v1,tp0=tap2,tn0=tun2

translates to:

$ um_add_service umnet
$ mount -t umnetlwipv6 -o "vd0=/tmp/v1,tp0=tap2,tn0=tun2" none /dev/net/default

It's quite straightforward. From that point onwards, the umlwipv6 howto
is good.

> I'll try the umnet version next week in more details. (Especially if
> it works like I expected it to work. Let's see.)

Ok, let me know if you still have problems.

Bye,
Ludovico
-- 
<garden@acheronte.it>        #acheronte (irc.freenode.net) ICQ: 64483080
GPG ID: 07F89BB8          Jabber: gardengl@gmail.com Yahoo: gardenghelle
-- This is signature nr. 4117

Send a report that this bug log contains spam.