Date: Thu, 28 Jun 2018 15:53:19 +0200 From: Solar Designer <solar@...nwall.com> To: owl-users@...ts.openwall.com Subject: Re: Minor problem with kernel 431stab123.1 VZ container networking Hi Chris, On Wed, Jun 20, 2018 at 06:10:01PM -1000, cpb wrote: > Hi, I am seeing a problem with the most recent Owl kernel from inside > the OpenVZ containers, which are also running Owl. Specifically: > > These two things do not work inside i686 containers when the host is > running kernel-2.6.18-431.el5.028stab123.1.owl1.x86_64: > > 1. "ifconfig" inside the containers does not work: > > root@...tainer:/ # ifconfig > SIOCGIFCONF: Bad address > > 2. Apache 2.2.34 (and 2.2.21) do not start, error_log shows: > > [Sat Jun 16 14:40:39 2018] [emerg] (14)Bad address: Couldn't set permissions on cross-process lock; check User and Group directives (and more) We think we have fixed the bug that caused these issues, in the kernel currently in Owl-current: 2.6.18-431.el5.028stab123.1.owl2. It's not yet in 3.1-stable, but should be installable on 3.1 (and even on 3.0, but not older) as-is. Please give it a try and let us know. 2018/06/28 Package: kernel Fixed a regression introduced with the previous update (to -431) where some 32-bit syscalls would fail with EFAULT on a 64-bit kernel because of improper alignment of the newly introduced KAISER/KPTI trampoline stack. This fix is due to investigation and patch by Pavel Kankovsky and bug report by Chris Bopp. The bug appears to have come from RHEL5 ELS, but at this time we're unsure whether it also manifests itself on those systems or not as we don't have any of those and no one replied to my Twitter query for testing on one of those. I guess they're rare. Since there's no container support on RHEL5 proper, I guess it's also not that common to run 32-bit binaries on it when having the 64-bit version installed. > P.S. May I suggest adding libpopt-devel-static in installorder.conf This is also done (also only in Owl-current for now). Alexander
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