Bug#844117: [pkg-gnupg-maint] Bug#844117: gnupg locks up until straced

2016-12-05 Thread Daniel Kahn Gillmor 
Over on https://bugs.debian.org/844117, Daniel Kahn Gillmor wrote:
> This looks like #840680 to me, which was resolved in 2.1.15-6.
>
> Please test a more recent version of dirmngr, and if it resolves your
> problems, please merge this bug report into 840680.

I haven't heard back from you about this, Ian.  Can you let me know
whether this lockup is resolved for you?

--dkg


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Bug#844117: [pkg-gnupg-maint] Bug#844117: gnupg locks up until straced

2016-11-13 Thread Daniel Kahn Gillmor 
On Sun 2016-11-13 01:45:45 +0900, Ian Jackson wrote:
> Package: gnupg
> Version: 2.1.15-4
>
> I just tried to use caff.  I found that it seemed to hang, every
> time.  I tried debugging it with strace.
>
> I discovered that caff had run a gpg-connect-agent process.  It was
> calling connect() to connect to /run/user/1000/gnupg/S.dirmngr.  The
> corresponding listening socket in question was owned by a dirmngr
> process.
>
> I straced the dirnmgr process and got:
>
> root(ian)@zealot:~> strace -fp14006
> strace: Process 14006 attached with 3 threads
> [pid 17554] futex(0x7f459d683200, 
> FUTEX_WAIT_BITSET_PRIVATE|FUTEX_CLOCK_REALTIME, 0, NULL, ) = -1 
> EAGAIN (Resource temporarily unavailable)
> [pid 17554] getsockopt(1, SOL_SOCKET, SO_PEERCRED, {pid=17553, uid=1000, 
> gid=1000}, [12]) = 0
> [pid 17554] futex(0x7f459d683200, FUTEX_WAKE_PRIVATE, 1) = 0
> ...
>
> And then caff unwedged.
>
> This all happened to me twice.  I may be able to repro it.
>
> I suspect thread mishandling by dirmngr.

This looks like #840680 to me, which was resolved in 2.1.15-6.

Please test a more recent version of dirmngr, and if it resolves your
problems, please merge this bug report into 840680.

Regards,

  --dkg


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Bug#844117: [pkg-gnupg-maint] Bug#844117: gnupg locks up until straced

2016-11-12 Thread Werner Koch 
On Sat, 12 Nov 2016 17:45, ijack...@chiark.greenend.org.uk said:

> I just tried to use caff.  I found that it seemed to hang, every
> time.  I tried debugging it with strace.

Put

--8<---cut here---start->8---
log-file /wherever/dirmngr.log
verbose
debug ipc
--8<---cut here---end--->8---

into dirmngr.conf.  kill dirmngr and run caff again.  This gives you a
nice log.

You may also want to start dirmngr yourself to see how it works:

  gpg-conncet-agent --dirmngr

then enter "help" to get a list of commands.  You may the check which
DNS resolver is used:

  getinfo dnsinfo

Add a keyserver (if you don't have one in the config)

  keyserver hkp://keys.gnupg.net

and view the table of keyservers:

  keyserver --resolve --hosttable

Looking up keys can be done using

  ks_get 1234567812345678



Shalom-Salam,

   Werner

-- 
Die Gedanken sind frei.  Ausnahmen regelt ein Bundesgesetz.


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