Issues with Linux 3.0.1 and network-interface-list

Issues with Linux 3.0.1 and network-interface-list

[Tassilo Horn]

Hi all,

does someone else also have issues with `network-interface-list' with
kernel version 3.0.1?  For me, sometimes that function returns nil,
although a second earlier and again a second later, it'll return a list
of eth0 and lo...

For example, with "strace -e ioctl emacs -Q" and then evaluating

--8<---------------cut here---------------start------------->8---
(while t
  (let ((ifs (network-interface-list)))
    (if ifs
      (message "Ok")
      (error "ifs"))))
--8<---------------cut here---------------end--------------->8---

in *scratch*, I first get some 100th Oks and then an error...  The
strace output is:

--8<---------------cut here---------------start------------->8---
ioctl(15, SIOCGIFCONF, {80, {{"lo", {AF_INET, inet_addr("127.0.0.1")}}, {"eth0", {AF_INET, inet_addr("141.26.67.142")}}}}) = 0
ioctl(15, SIOCGIFCONF, {80, {{"lo", {AF_INET, inet_addr("127.0.0.1")}}, {"eth0", {AF_INET, inet_addr("141.26.67.142")}}}}) = 0
ioctl(15, SIOCGIFCONF, {80, {{"lo", {AF_INET, inet_addr("127.0.0.1")}}, {"eth0", {AF_INET, inet_addr("141.26.67.142")}}}}) = 0
[...]
ioctl(15, SIOCGIFCONF, {0, {}})
--8<---------------cut here---------------end--------------->8---

It looks like a kernel bug, right?

(If someone can reproduce that and has some C- and kernel-fu, it would
be great if he could report that at the kernel bugtracker.  I don't have
any...)

Bye,
Tassilo

Re: Issues with Linux 3.0.1 and network-interface-list

[Andreas Schwab]

Tassilo Horn <tassilo@member.fsf.org> writes:

> does someone else also have issues with `network-interface-list' with
> kernel version 3.0.1?  For me, sometimes that function returns nil,
> although a second earlier and again a second later, it'll return a list
> of eth0 and lo...

Does it still happen?

Andreas.

-- 
Andreas Schwab, schwab@linux-m68k.org
GPG Key fingerprint = 58CA 54C7 6D53 942B 1756  01D3 44D5 214B 8276 4ED5
"And now for something completely different."

Re: Issues with Linux 3.0.1 and network-interface-list

[Tassilo Horn]

Andreas Schwab <schwab@linux-m68k.org> writes:

Hi Andreas,

>> does someone else also have issues with `network-interface-list' with
>> kernel version 3.0.1?  For me, sometimes that function returns nil,
>> although a second earlier and again a second later, it'll return a
>> list of eth0 and lo...
>
> Does it still happen?

Nope, seems to work fine now.

Thank you,
Tassilo