That was too soon: correction: 18.04 does not yet fix this bug.
--
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/1780103
Title:
Network namespaces support for non-IP suddenly missing
To manage
A system update on 18.04 now fixes this bug. I'll check later to see if
the 16.04 line also fixes it.
--
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/1780103
Title:
Network namespaces support for
This ticket is related to:
https://github.com/torvalds/linux/commit/b84bbaf7a6c8cca24f8acf25a2c8e46913a947ba
https://github.com/torvalds/linux/commit/9aad13b087ab0a588cd68259de618f100053360e
--
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to
It looks like the frame gets artificially enlarged by something in
between my call to send and the receiver, by 14 bytes (an ethernet
header size). The bytes 'it' uses to pad are all the same, but always
different. If I set the MTU to the correct size (that is, the ethernet
*payload* size), then
Ok. I've found a clue. It's in the MTU size. If you enlarge the
specified MTU size in my test code by 14 (fourteen - the size of an
Ethernet header), then the frames go through unhindered. It looks like
someone interpreted 'MTU' to mean: 'size of the Ethernet frame' instead
of 'size of the
The code above formulates, sends and (in a second executable) receives
ethernet frames. The network namespaces are set up to enable this. The
ethernet frames are unusual for two reasons: they are long (2156 MTU),
and they are typed as non-IP (or ARP). Also, they don't use the MAC
addresses that
The attached tar.gz contains C-files, a Makefile, and a test shell
script. It must be made (using 'make'), and run as root. This code works
on Ubuntu 16.04 kernel 4.4.0-128-generic (and prints 'success!') but
does not work on 4.4.0-130-generic or 4.4.0-131-generic.
** Attachment added: "Tar.gz
I have source code now that works on the old kernel, and doesn't on the
new one. Shall I post it (somehow - I don't know how)?
--
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/1780103
Title:
Network
I have more information on this issue. It turns out that I do two things
that are unusual: I set the MTU of the ethernet device to 2156. Then I
send a non-IP ethernet type packet with a length of 2170 bytes (2156 +
14 bytes ethernet header) using raw sockets. The raw socket receiving
it, gets a
I've run apport-collect twice on this one: the first one is with the
working (4.4.0-128-generic) kernel, the second one is with the
*non*-working kernel (4.4.0-130-generic).
--
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
apport information
** Attachment added: "ProcEnviron.txt"
https://bugs.launchpad.net/bugs/1780103/+attachment/5159944/+files/ProcEnviron.txt
--
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/1780103
apport information
** Attachment added: "WifiSyslog.txt"
https://bugs.launchpad.net/bugs/1780103/+attachment/5159937/+files/WifiSyslog.txt
** Description changed:
I run 16.04, and I keep daily track of all dist-upgrades. Yesterday (3
july 2018) there was an upgrade, and it must have
apport information
** Attachment added: "ProcModules.txt"
https://bugs.launchpad.net/bugs/1780103/+attachment/5159946/+files/ProcModules.txt
--
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/1780103
apport information
** Attachment added: "AlsaInfo.txt"
https://bugs.launchpad.net/bugs/1780103/+attachment/5159938/+files/AlsaInfo.txt
--
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/1780103
apport information
** Attachment added: "Lspci.txt"
https://bugs.launchpad.net/bugs/1780103/+attachment/5159941/+files/Lspci.txt
--
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/1780103
Title:
apport information
** Attachment added: "WifiSyslog.txt"
https://bugs.launchpad.net/bugs/1780103/+attachment/5159948/+files/WifiSyslog.txt
--
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/1780103
apport information
** Attachment added: "ProcInterrupts.txt"
https://bugs.launchpad.net/bugs/1780103/+attachment/5159945/+files/ProcInterrupts.txt
--
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
apport information
** Attachment added: "UdevDb.txt"
https://bugs.launchpad.net/bugs/1780103/+attachment/5159947/+files/UdevDb.txt
--
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/1780103
Title:
apport information
** Attachment added: "ProcCpuinfo.txt"
https://bugs.launchpad.net/bugs/1780103/+attachment/5159942/+files/ProcCpuinfo.txt
--
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/1780103
apport information
** Attachment added: "ProcInterrupts.txt"
https://bugs.launchpad.net/bugs/1780103/+attachment/5159934/+files/ProcInterrupts.txt
--
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
apport information
** Attachment added: "CurrentDmesg.txt"
https://bugs.launchpad.net/bugs/1780103/+attachment/5159940/+files/CurrentDmesg.txt
--
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
apport information
** Attachment added: "Lspci.txt"
https://bugs.launchpad.net/bugs/1780103/+attachment/5159930/+files/Lspci.txt
--
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/1780103
Title:
apport information
** Attachment added: "ProcCpuinfo.txt"
https://bugs.launchpad.net/bugs/1780103/+attachment/5159931/+files/ProcCpuinfo.txt
--
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/1780103
apport information
** Attachment added: "ProcEnviron.txt"
https://bugs.launchpad.net/bugs/1780103/+attachment/5159933/+files/ProcEnviron.txt
--
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/1780103
apport information
** Attachment added: "CurrentDmesg.txt"
https://bugs.launchpad.net/bugs/1780103/+attachment/5159929/+files/CurrentDmesg.txt
--
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
apport information
** Attachment added: "CRDA.txt"
https://bugs.launchpad.net/bugs/1780103/+attachment/5159928/+files/CRDA.txt
--
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/1780103
Title:
apport information
** Attachment added: "ProcCpuinfoMinimal.txt"
https://bugs.launchpad.net/bugs/1780103/+attachment/5159943/+files/ProcCpuinfoMinimal.txt
--
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
apport information
** Attachment added: "ProcModules.txt"
https://bugs.launchpad.net/bugs/1780103/+attachment/5159935/+files/ProcModules.txt
--
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/1780103
apport information
** Attachment added: "UdevDb.txt"
https://bugs.launchpad.net/bugs/1780103/+attachment/5159936/+files/UdevDb.txt
--
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/1780103
Title:
apport information
** Attachment added: "CRDA.txt"
https://bugs.launchpad.net/bugs/1780103/+attachment/5159939/+files/CRDA.txt
--
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/1780103
Title:
apport information
** Attachment added: "ProcCpuinfoMinimal.txt"
https://bugs.launchpad.net/bugs/1780103/+attachment/5159932/+files/ProcCpuinfoMinimal.txt
--
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
apport information
** Tags added: apport-collected xenial
** Description changed:
I run 16.04, and I keep daily track of all dist-upgrades. Yesterday (3
july 2018) there was an upgrade, and it must have been a kernel upgrade,
because my machine had rebooted (which I make it do
I can confirm that the 4.4.0-128-generic kernel does *not* have the
problem, while the 4.4.0-130-generic kernel *does*.
Op wo 4 jul. 2018 om 17:21 schreef Daniel Manrique <
daniel.manri...@canonical.com>:
> Hello,
>
> Thank you for taking the time to report this bug and helping to make
> Ubuntu
The thing is, I rely on 'ip' a lot. So, not wanting to have to rely on
code I knew was buggy, and how it was buggy, I apt-get sourced it, fixed
it, and installed it on all my machines. I have now no machines with
that particular bug left. My hunch is that when using network namespaces
with
By the way, the bug was fixed already:
http://git.kernel.org/cgit/linux/kernel/git/shemminger/iproute2.git/commit/?id=a1b4a274d4917be06b3060d3c8e95aba5c92a9a9
So by upgrading to ip version 4.5 this should be fixed.
--
You received this bug notification because you are a member of Ubuntu
Bugs,
Well, either that or you change struct nsid_cache (line 138) to
struct nsid_cache {
struct hlist_node nsid_hash;
struct hlist_node name_hash;
int nsid;
charname[1];
};
I think that that would do the same.
--
Please reopen as I've found the cause of the bug and posted it to the
forum.
2016-10-26 6:17 GMT+02:00 Launchpad Bug Tracker <1615...@bugs.launchpad.net>
:
> [Expired for iproute2 (Ubuntu) because there has been no activity for 60
> days.]
>
> ** Changed in: iproute2 (Ubuntu)
>Status:
I found the bug: in the package iproute2 version 2-4.3, in the file
ip/ipnetns.c, line 175 must read:
c = malloc(sizeof(*c) + strlen(name) + 1);
instead of:
c = malloc(sizeof(*c) + strlen(name));
** Changed in: iproute2 (Ubuntu)
Status: Expired => In Progress
--
You received this bug
I have no idea if or whether the 16.10 and 16.04 versions are somehow
the same. I'll see if I can write a script to reproduce the bug (which I
forgot to post: this causes a segfault).
--
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
# cat /etc/issue
Ubuntu 16.04.1 LTS \n \l
--
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/1615209
Title:
ip crashes after a few times adding and removing network namespaces
To manage notifications
# uname -a
Linux charcoal 4.4.0-34-generic #53-Ubuntu SMP Wed Jul 27 16:06:28 UTC 2016
i686 i686 i686 GNU/Linux
--
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/1615209
Title:
ip crashes after a few
# ip -V
ip utility, iproute2-ss151103
--
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/1615209
Title:
ip crashes after a few times adding and removing network namespaces
To manage notifications about
Public bug reported:
# which ip
/sbin/ip
# valgrind ip netns add black2
==22804== Memcheck, a memory error detector
==22804== Copyright (C) 2002-2015, and GNU GPL'd, by Julian Seward et al.
==22804== Using Valgrind-3.11.0 and LibVEX; rerun with -h for copyright info
==22804== Command: ip netns
43 matches
Mail list logo
