On 30.03.18 10:54, Philipp Hagemeister wrote:
> Since about yesterday, my enigmail 2:1.9.9-2 (on debian sid) seems to
> automatically update keys by launching commands like this:
> 
> /usr/bin/gpg --charset utf-8 --display-charset utf-8
> --no-auto-check-trustdb --batch --no-tty --status-fd 2 --keyserver
> hkps://pgp.mit.edu:443 --recv-keys 49B484E2FB331A4A
> 
> 49B484E2FB331A4A is a key in my database. The process' parent is
> thunderbird.
> 
> These gpg instances use 100% of my CPU (well, 1 core) until I kill them
> (I tested for 7+ minutes). Attaching strace shows a brain-dead behavior,
> apparently trying to acquire a lock in a busyloop (wrong in itself,
> should be blocking) with a crazy high offset:
> 
> fcntl(8, F_SETLK, {l_type=F_RDLCK, l_whence=SEEK_SET,
> l_start=1073741824, l_len=1}) = -1 EACCES (Permission denied)
> fcntl(8, F_SETLK, {l_type=F_RDLCK, l_whence=SEEK_SET,
> l_start=1073741824, l_len=1}) = -1 EACCES (Permission denied)
> fcntl(8, F_SETLK, {l_type=F_RDLCK, l_whence=SEEK_SET,
> l_start=1073741824, l_len=1}) = -1 EACCES (Permission denied)
> 
> $ ls -lh /proc/6643/fd/8
> lr-x------ 1 phihag phihag 64 Mar 30 10:40 /proc/6643/fd/8 ->
> /home/phihag/.gnupg/tofu.db
> $ ls -l /home/phihag/.gnupg/tofu.db
> -rw-r--r-- 1 phihag phihag 49152 Mar 30 03:35 /home/phihag/.gnupg/tofu.db
> 
> To me, this looks like a bug in gpg (not enigmail). Nevertheless, I
> never wanted enigmail to automatically synchronize keys, especially when
> I'm connected via a metered and small-bandwidth connection.
> 
> So how do I disable the automatic key synchronization in enigmail? Even
> with advanced preferences enabled, I cannot find any relevant tab,
> letalone relevant option in the preferences.

The option is hidden, that is, you can access it from the Config Editor
(via Thunderbird options > Advanced Tab > Button "Config Editor"

Search for the option "extensions.enigmail.keyRefreshOn" and set it to
false.

-Patrick


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