Bug 205724 – app-crypt/gnupg-2.0.7 gpg-agent unstable

• Status: RESOLVED NEEDINFO
• Product: Gentoo Linux

[Description Raimar Sandner 2008-01-14 00:28:26 UTC]

gpg-agent sometimes crashes after the second query. 

Reproducible: Sometimes

Steps to Reproduce:
1. eval `gpg-agent --daemon`
2. gpg --no-options --use-agent --no-tty --sign --local-user 59426429 -o /dev/null /dev/null
3. enter pin
4. gpg --no-options --use-agent --no-tty --sign --local-user 59426429 -o /dev/null /dev/null

Actual Results:  
Sometimes gpg-agent processes the second query, but crashes. On other occasions, the agent just works. This is maybe related to #204662.

Expected Results:  
gpg-agent should continue running

gnupg is compiled with CFLAGS="-g -ggdb". 

$ paludis --info
paludis 0.26.0_alpha5
Paludis build information:
    Compiler:
        CXX:                   i686-pc-linux-gnu-g++ 4.2.2 (Gentoo 4.2.2 p1.0)
        CXXFLAGS:              -march=prescott -O2 -fomit-frame-pointer -pipe
        LDFLAGS:
        DATE:                  2008-01-05T16:52:25+0100

    Libraries:
        C++ Library:           GNU libstdc++ 20071007

    Reduced Privs:
        reduced_uid:           1000
        reduced_uid->name:     rsandner
        reduced_uid->dir:      /home/rsandner
        reduced_gid:           1000
        reduced_gid->name:     rsandner

    Paths:
        DATADIR:               /usr/share
        LIBDIR:                /usr/lib
        LIBEXECDIR:            /usr/libexec
        SYSCONFDIR:            /etc
        PYTHONINSTALLDIR:      /usr/lib/python2.5/site-packages
        RUBYINSTALLDIR:

Repository virtuals:
    format:                    virtuals

Repository installed-virtuals:
    format:                    installed_virtuals
    root:                      /

Repository gentoo:
    format:                    ebuild
    location:                  /usr/portage
    append_repository_name_to_write_cache: true
    builddir:                  /var/tmp/paludis
    cache:                     /usr/portage/metadata/cache
    distdir:                   /usr/portage/distfiles
    eapi_when_unknown:         0
    eapi_when_unspecified:     0
    eclassdirs:                /usr/portage/eclass
    ignore_deprecated_profiles: false
    layout:                    traditional
    names_cache:               /usr/portage/.cache/names
    newsdir:                   /usr/portage/metadata/news
    profile_eapi:              0
    profiles:                  /usr/portage/profiles/default-linux/x86/2006.1
    securitydir:               /usr/portage/metadata/glsa
    setsdir:                   /usr/portage/sets
    sync:                      rsync://rsync.gentoo.org/gentoo-portage
    sync_options:
    use_manifest:              use
    write_cache:               /var/cache/paludis/metadata

    Package information:
        app-admin/eselect-compiler: (none)
        app-shells/bash:       3.2_p33
        dev-java/java-config:  1.3.7 2.0.33-r1
        dev-lang/python:       2.5.1-r5
        dev-python/pycrypto:   2.0.1-r6
        dev-util/ccache:       (none)
        dev-util/confcache:    (none)
        sys-apps/baselayout:   1.12.10-r5
        sys-apps/sandbox:      1.2.18.1-r2
        sys-devel/autoconf:    2.13 2.61-r1
        sys-devel/automake:    1.10 1.4_p6 1.5 1.6.3 1.7.9-r1 1.8.5-r3 1.9.6-r2
        sys-devel/binutils:    2.18-r1
        sys-devel/gcc-config:  1.4.0-r4
        sys-devel/libtool:     1.5.24
        virtual/os-headers:    2.6.23-r3 (for sys-kernel/linux-headers::installed)

[Comment 1 Raimar Sandner 2008-01-14 00:29:50 UTC]

Created attachment 140905 [details]
strace log of a crash

[Comment 2 Raimar Sandner 2008-01-14 00:30:17 UTC]

Created attachment 140907 [details]
gpg-agent debugging log

[Comment 3 Raimar Sandner 2008-01-14 00:34:29 UTC]

$ echo gnupg libksba libassuan libgcrypt lib-gpgerror pth | xargs -n1 equery --quiet list
[I--] [  ] app-crypt/gnupg-2.0.7 (0)
[I--] [  ] dev-libs/libksba-1.0.2-r1 (0)
[I--] [ ~] dev-libs/libassuan-1.0.4 (0)
[I--] [ ~] dev-libs/libgcrypt-1.4.0-r1 (0)
[I--] [  ] dev-libs/libpthread-stubs-0.1 (0)
[I--] [ ~] dev-libs/pth-2.0.7 (0)

[Comment 4 Alon Bar-Lev (RETIRED) 2008-01-14 06:28:12 UTC]

Missing from info: gcc version and glibc version.

[Comment 5 Raimar Sandner 2008-01-14 08:03:30 UTC]

[I--] [ ~] sys-devel/gcc-4.2.2 (4.2)
[I--] [ ~] sys-libs/glibc-2.7-r1 (2.2)

[Comment 6 Raimar Sandner 2008-01-14 12:31:37 UTC]

Created attachment 140922 [details]
backtrace

don't know if this helps...

[Comment 7 Alon Bar-Lev (RETIRED) 2008-01-14 14:29:43 UTC]

Yes it helps.

But I cannot reproduce this!!!!
I upgraded to glibc-2.7 and still all work correctly.

Can you please sync portage, I added debug USE flag to pth, set it and reemerge pth and gnupg.

Run it this way:
gpg-agent --daemon bash
$ echo ${GPG_AGENT_INFO}

At a second shell you should rest GPG_AGENT:
$ export GPG_AGENT_INFO=<whatever>
And the do your stuff...
I hope the debug log of pth will be helpful.

Thanks!

[Comment 8 Raimar Sandner 2008-01-14 15:58:09 UTC]

I have a hard time reproducing the bug myself. Well, maybe the solution is to re-emerge first pth and then gnupg...

Will do some more testing, feel free to close the bug for now.

Thanks for the help.

[Comment 9 Alon Bar-Lev (RETIRED) 2008-01-14 17:28:51 UTC]

Can you reproduce this every time on gnupg-2.0.8?

[Comment 10 Raimar Sandner 2008-01-14 23:54:02 UTC]

Negative, gnupg-2.0.8 and gnupg-2.0.7 gpg-agents work as expected at the moment. But pth debugging messages are still shown, even after recompiling pth without debug USE-flag.

[Comment 11 Raimar Sandner 2008-01-15 00:07:53 UTC]

Ok, just synced, and with pth-2.0.7-r1 everything is back to normal, no debugging messages anymore and working gpg-agent.

[Comment 12 Alon Bar-Lev (RETIRED) 2008-02-13 12:59:32 UTC]

As per comment#7, I cannot reproduce this.
If you have a valid scenario, please post and reopen.
Thanks!