This is really interesting. pam-ovirt-cred is randomly failing on one of two checks: https://github.com/oVirt/ovirt-guest-agent/blob/master/pam-ovirt-cred/c red_channel.c#L107 and https://github.com/oVirt/ovirt-guest-agent/blob/master/pam-ovirt-cred/c red_channel.c#L134 Theres no pattern, on which step it will fail. Sometimes it fails on writing to socket sometimes on reading: Jul 18 14:11:02 desktop64 cred-debug: recv() failed Jul 18 14:11:14 desktop64 cred-debug: send() failed Jul 18 14:11:18 desktop64 cred-debug: recv() failed Jul 18 14:11:23 desktop64 cred-debug: recv() failed Jul 18 14:11:28 desktop64 cred-debug: send() failed Jul 18 14:11:33 desktop64 cred-debug: recv() failedOn Mon, 2016-07-18 at 09:51 +0300, Tadas wrote:
After moving to gdm, I've managed to solve the timeout issue. Now i bumped into another one: oVirt agent seem to emit credentials without error:
Dummy-1::DEBUG::2016-07-18 09:29:53,293::OVirtAgentLogic::304::root::User log-in (credentials = '\x00\x00\x00\x04test********\x00') Dummy-1::INFO::2016-07-18 09:29:53,293::CredServer::207::root::The following users are allowed to connect: [0] Dummy-1::DEBUG::2016-07-18 09:29:53,294::CredServer::272::root::Token: 250954 Dummy-1::INFO::2016-07-18 09:29:53,294::CredServer::273::root::Opening credentials channel... Dummy-1::INFO::2016-07-18 09:29:53,294::CredServer::132::root::Emitting user authenticated signal (250954). Dummy-1::INFO::2016-07-18 09:29:53,349::CredServer::277::root::Credentials channel was closed.
But pam module is failing: gdm-ovirtcred]: pam_ovirt_cred(gdm-ovirtcred:auth): Failed to acquire user's credentials
After poking a bit I've managed to find, that module fails on:
if (ret == -1) { D(("send() failed.")); return -1; }
in cred_channel.c
Also, i have to mention, that there's no /etc/pamd/password-auth file in Debian Linux. I've copied it from Centos (it is needed by gdm- ovirtcred.pam)
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