I can confirm the issue with 2.6.32-696.18.7.el6.x86_64, but mine looks alittle different... Maybe because i'm using pvgrub. ============= Init TPM Front ================ Tpmfront:Error Unable to read device/vtpm/0/backend-id during tpmfront initialization! error = ENOENT Tpmfront:Info Shutting down tpmfront close blk: backend=/local/domain/0/backend/vbd/14/51712 node=device/vbd/51712 close blk: backend=/local/domain/0/backend/vbd/14/51728 node=device/vbd/51728 [root at devhost1]# -- Shaun Reitan NDCHost.com ------ Original Message ------ From: "Sarah Newman" <srn at prgmr.com> To: "Discussion about the virtualization on CentOS" <centos-virt at centos.org> Sent: 2018-01-05 12:39:21 AM Subject: [CentOS-virt] Centos 6 2.6.32-696.18.7.el6.x86_64 does not boot in Xen PV mode >Problems start before any of the kaiser code executes, though it could >still be related to CONFIG_KAISER since that has effects beyond >kaiser.c. > >--- >(early) Initializing cgroup subsys cpuset >(early) Initializing cgroup subsys cpu >(early) Linux version 2.6.32-696.18.7.el6.x86_64 >(mockbuild at c1bl.rdu2.centos.org) (gcc version 4.4.7 20120313 (Red Hat >4.4.7-18) (GCC) ) #1 SMP Thu >Jan 4 17:31:22 UTC 2018 >(early) Command line: ro console=hvc0 rootflags=barrier=0 >crashkernel=auto SYSFONT=latarcyrheb-sun16 LANG=en_US.UTF-8 KEYTABLE=us >earlyprintk=xen >(early) KERNEL supported cpus: >(early) Intel GenuineIntel >(early) AMD AuthenticAMD >(early) Centaur CentaurHauls >(early) 1 multicall(s) failed: cpu 0 >(early) Pid: 0, comm: swapper Not tainted 2.6.32-696.18.7.el6.x86_64 #1 >(early) Call Trace: >(early) [<ffffffff81004843>] ? xen_mc_flush+0x1c3/0x250 >(early) [<ffffffff81006b9e>] ? xen_extend_mmu_update+0xde/0x1b0 >(early) [<ffffffff81006fcd>] ? xen_set_pmd_hyper+0x9d/0xc0 >(early) [<ffffffff81c5e8ac>] ? early_ioremap_init+0x98/0x133 >(early) [<ffffffff81c45221>] ? setup_arch+0x40/0xca6 >(early) [<ffffffff8107e0ee>] ? vprintk_default+0xe/0x10 >(early) [<ffffffff8154b0cd>] ? printk+0x4f/0x52 >(early) [<ffffffff81c3fdda>] ? start_kernel+0xdc/0x43b >(early) [<ffffffff81c47eb0>] ? reserve_early+0x30/0x39 >(early) [<ffffffff81c3f33a>] ? x86_64_start_reservations+0x125/0x129 >(early) [<ffffffff81c4309c>] ? xen_start_kernel+0x4fe/0x505 >(early) ------------[ cut here ]------------ >(early) WARNING: at arch/x86/xen/multicalls.c:182 >xen_mc_flush+0x21f/0x250() (Not tainted) >(early) Modules linked in: >(early) Pid: 0, comm: swapper Not tainted 2.6.32-696.18.7.el6.x86_64 #1 >(early) Call Trace: >(early) [<ffffffff8107ce81>] ? warn_slowpath_common+0x91/0xe0 >(early) [<ffffffff8100762f>] ? >__raw_callee_save_xen_restore_fl+0x11/0x1e >(early) [<ffffffff8107ceea>] ? warn_slowpath_null+0x1a/0x20 >(early) [<ffffffff8100489f>] ? xen_mc_flush+0x21f/0x250 >(early) [<ffffffff81006b9e>] ? xen_extend_mmu_update+0xde/0x1b0 >(early) [<ffffffff81006b9e>] ? xen_extend_mmu_update+0xde/0x1b0 >(early) [<ffffffff81006fcd>] ? xen_set_pmd_hyper+0x9d/0xc0 >(early) [<ffffffff81c5e8ac>] ? early_ioremap_init+0x98/0x133 >(early) [<ffffffff81c45221>] ? setup_arch+0x40/0xca6 >(early) [<ffffffff8107e0ee>] ? vprintk_default+0xe/0x10 >(early) [<ffffffff8154b0cd>] ? printk+0x4f/0x52 >(early) [<ffffffff81c3fdda>] ? start_kernel+0xdc/0x43b >(early) [<ffffffff81c47eb0>] ? reserve_early+0x30/0x39 >(early) [<ffffffff81c3f33a>] ? x86_64_start_reservations+0x125/0x129 >(early) [<ffffffff81c4309c>] ? xen_start_kernel+0x4fe/0x505 >(early) ---[ end trace a7919e7f17c0a725 ]--- >(early) ACPI in unprivileged domain disabled >(early) released 0 pages of unused memory >(early) BIOS-provided physical RAM map: >(early) Xen: 0000000000000000 - 00000000000a0000 (usable) >(early) Xen: 00000000000a0000 - 0000000000100000 (reserved) >(early) Xen: 0000000000100000 - 0000000020000000 (usable) >(early) bootconsole [xenboot0] enabled >_______________________________________________ >CentOS-virt mailing list >CentOS-virt at centos.org >https://lists.centos.org/mailman/listinfo/centos-virt