gnus hangs when changing network

gnus hangs when changing network

[Rémi Letot]

Hello,

when I change network with my laptop sleeping (typical when I commute
between work and home), my whole emacs session often freezes if gnus is
there (which is always).

Not so long ago I just had to kill the openssl process, which abruptly
interrupted the imap connection, and gave me back my emacs.

Now that ssl is handled by emacs itself, I have no process to kill. And
C-g doesn't help. And it can stay frozen quite some time.

Besides quitting gnus before I commute (which I almost always forget)
and killing emacs (which is "Not Good"), is there a way to stop this
from happening ? Shouldn't C-g always work ?

Thanks,
-- 
Rémi

Re: gnus hangs when changing network

[Steinar Bang]

>>>>> hobbes@poukram.net (Rémi Letot):

> when I change network with my laptop sleeping (typical when I commute
> between work and home), my whole emacs session often freezes if gnus
> is there (which is always).

I've seen something similar: all of my nntp connections refuse to
connect after a suspend, and a resume in a different network.

However, my imaps session (which needs openssl in a separate process, in
all of my ancient emacsen) have always survived.

So it is similar, but sort of the opposite, of what you see.

Re: gnus hangs when changing network

[Lars Ingebrigtsen]

hobbes@poukram.net (Rémi Letot) writes:

> Besides quitting gnus before I commute (which I almost always forget)
> and killing emacs (which is "Not Good"), is there a way to stop this
> from happening ? Shouldn't C-g always work ?

`C-g' should always work, but I'm not sure how the low-level Emacs stuff
reacts to changing IP addresses and stuff.  The people on the
emacs-devel mailing list may know more.

-- 
(domestic pets only, the antidote for overdose, milk.)
  larsi@gnus.org * Lars Magne Ingebrigtsen

Re: gnus hangs when changing network

[Rémi Letot]

Steinar Bang <sb@dod.no> writes:

>>>>>> hobbes@poukram.net (Rémi Letot):
>
>> when I change network with my laptop sleeping (typical when I commute
>> between work and home), my whole emacs session often freezes if gnus
>> is there (which is always).
>
> I've seen something similar: all of my nntp connections refuse to
> connect after a suspend, and a resume in a different network.
>
> However, my imaps session (which needs openssl in a separate process, in
> all of my ancient emacsen) have always survived.
>
> So it is similar, but sort of the opposite, of what you see.

On my old setup, when it was using openssl, I killed openssl twice and
got my emacs back. So maybe it was imap and nntp.

On my current setup, I don't know what is hanging, probably all open
connections. But I don't know since I can't C-g and get debug info (not
that I could read it, but I could provide more info to the list :-)

Thanks,
-- 
Rémi

Re: gnus hangs when changing network

[Rémi Letot]

Lars Ingebrigtsen <larsi@gnus.org> writes:

> hobbes@poukram.net (Rémi Letot) writes:
>
>> Besides quitting gnus before I commute (which I almost always forget)
>> and killing emacs (which is "Not Good"), is there a way to stop this
>> from happening ? Shouldn't C-g always work ?
>
> `C-g' should always work, but I'm not sure how the low-level Emacs stuff
> reacts to changing IP addresses and stuff.  The people on the
> emacs-devel mailing list may know more.

I'll go and ask there, gnus is the trigger, but the tls stuff is emacs
proper.

Thanks,
-- 
Rémi