On 01/08/2018 02:10 PM, Shaun Reitan wrote: > While installing the experemental kernel on a CentOS 7 PV the following > happened. After a reboot of the PV the kernel looks to be installed but > there is no option for booting it in grub. I attempted to run yum > reinstall kernel-4.9.75-204.el7.centos.x86_64 and it installed fine but > still no entry in grub. No initramfs existed and I found kernel-modules > did not install properly so I then ran yum reinstall kernel-modules and > received a ton of errors that looked like the following.. > > depmod: ERROR: failed to load symbols from > /lib/modules/4.9.75-204.el7.centos.x86_64/kernel/drivers/misc/sgi-xp/xpc.ko.xz: > Exec format error > > after which a initramfs does exist however on reboot still no option for > the new kernel. Installed and works fine for me. Very odd. from my Dom0 machine: [root@xendom0 ~]# uname -a Linux xendom0 4.9.75-29.el7.x86_64 #1 SMP Fri Jan 5 19:42:28 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux From my DomU CentOS-7 PV VM: Linux x7-x8664-pv 4.9.75-204.el7.centos.x86_64 #1 SMP Fri Jan 5 17:51:39 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux My CentOS-7 PV config: [root@xendom0 ~]# cat /etc/xen/config.d/c7-x8664.pv.cfg bootloader= "/usr/lib/xen/bin/pygrub" name = "c7-x8664.pv" memory = 4096 vcpus = 2 vif = [ 'mac=00:16:3E:29:00:02,bridge=xenbr0' ] disk = [ 'phy:/dev/cl/c7-x8664-pv,xvda,rw' ] vfb = [ 'type=vnc,vncdisplay=1,vncpasswd=supersecret' ] > > > [root@CC0A2543 ~]# [ 587.145018] ------------[ cut here ]------------ > [ 587.145018] kernel BUG at arch/x86/kernel/paravirt.c:244! > [ 587.145018] invalid opcode: 0000 [#1] SMP > [ 587.145018] Modules linked in: xen_netfront coretemp pcspkr ip_tables > ext4 mbcache jbd2 xen_blkfront > [ 587.145018] CPU: 0 PID: 2126 Comm: dracut Not tainted > 3.10.0-123.4.4.el7.x86_64 #1 > [ 587.145018] task: ffff880002da5b00 ti: ffff8800f6088000 task.ti: > ffff8800f6088000 > [ 587.145018] RIP: e030:[<ffffffff815da23b>] [<ffffffff815da23b>] > enter_lazy.part.0+0x4/0x6 > [ 587.145018] RSP: e02b:ffff8800ff403ab0 EFLAGS: 00010002 > [ 587.145018] RAX: 0000000000000001 RBX: ffff8800f8ad4040 RCX: > 00003ffffffff000 > [ 587.145018] RDX: ffff880000000040 RSI: ffff880000000000 RDI: > 00000005a52cc067 > [ 587.145018] RBP: ffff8800ff403ab0 R08: ffff8800ff403b78 R09: > ffffffff81362409 > [ 587.145018] R10: ffff8800fa001e00 R11: ffff880000000000 R12: > ffffc90000609000 > [ 587.145018] R13: ffffc90000608000 R14: 0000000000000000 R15: > ffffffff8100a6b0 > [ 587.145018] FS: 00007f14b0680740(0000) GS:ffff8800ff400000(0000) > knlGS:0000000000000000 > [ 587.145018] CS: e033 DS: 0000 ES: 0000 CR0: 000000008005003b > [ 587.145018] CR2: 00007f14b0473000 CR3: 00000000f6099000 CR4: > 0000000000002660 > [ 587.145018] DR0: 0000000000000000 DR1: 0000000000000000 DR2: > 0000000000000000 > [ 587.145018] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: > 0000000000000400 > [ 587.145018] Stack: > [ 587.145018] ffff8800ff403ac0 ffffffff81046bc7 ffff8800ff403b60 > ffffffff8116d8d6 > [ 587.145018] ffffc90000608fff ffffc90000609000 ffffffff818cec90 > ffffc90000608fff > [ 587.145018] ffffc90000609000 ffff8800fa04d000 0000000000000004 > ffffc90000608fff > [ 587.145018] Call Trace: > [ 587.145018] <IRQ> > [ 587.145018] [<ffffffff81046bc7>] paravirt_enter_lazy_mmu+0x27/0x30 > [ 587.145018] [<ffffffff8116d8d6>] apply_to_page_range+0x266/0x440 > [ 587.145018] [<ffffffff8100a7fb>] arch_gnttab_map_status+0x3b/0x70 > [ 587.145018] [<ffffffff81362486>] gnttab_map_frames_v2+0xd6/0x150 > [ 587.145018] [<ffffffff813625a1>] gnttab_map+0xa1/0x140 > [ 587.145018] [<ffffffff81362740>] get_free_entries+0x100/0x2e0 > [ 587.145018] [<ffffffff813629e5>] gnttab_alloc_grant_references+0x15/0x30 > [ 587.145018] [<ffffffffa0000cc3>] do_blkif_request+0x683/0x850 > [xen_blkfront] > [ 587.145018] [<ffffffff812906c3>] __blk_run_queue+0x33/0x40 > [ 587.145018] [<ffffffff812906f9>] blk_start_queue+0x29/0x40 > [ 587.145018] [<ffffffffa0000eb1>] > kick_pending_request_queues+0x21/0x30 [xen_blkfront] > [ 587.145018] [<ffffffffa0001487>] blkif_interrupt+0x5c7/0x670 > [xen_blkfront] > [ 587.145018] [<ffffffff810f735e>] handle_irq_event_percpu+0x3e/0x1e0 > [ 587.145018] [<ffffffff810f753d>] handle_irq_event+0x3d/0x60 > [ 587.145018] [<ffffffff810fa1c7>] handle_edge_irq+0x77/0x130 > [ 587.145018] [<ffffffff81363527>] __xen_evtchn_do_upcall+0x227/0x350 > [ 587.145018] [<ffffffff813656db>] xen_evtchn_do_upcall+0x2b/0x50 > [ 587.145018] [<ffffffff815f3f7e>] xen_do_hypervisor_callback+0x1e/0x30 > [ 587.145018] <EOI> > [ 587.145018] [<ffffffff812b8419>] ? free_cpumask_var+0x9/0x10 > [ 587.145018] [<ffffffff81169618>] ? unmap_page_range+0x5f8/0x860 > [ 587.145018] [<ffffffff81169901>] ? unmap_single_vma+0x81/0xf0 > [ 587.145018] [<ffffffff8116a9c9>] ? unmap_vmas+0x49/0x90 > [ 587.145018] [<ffffffff8117367c>] ? exit_mmap+0xac/0x1a0 > [ 587.145018] [<ffffffff8105b187>] ? mmput+0x67/0xf0 > [ 587.145018] [<ffffffff811b6c32>] ? flush_old_exec+0x422/0x880 > [ 587.145018] [<ffffffff812069cc>] ? load_elf_binary+0x33c/0xde0 > [ 587.145018] [<ffffffff81272b13>] ? ima_get_action+0x23/0x30 > [ 587.145018] [<ffffffff8127217e>] ? process_measurement+0x8e/0x250 > [ 587.145018] [<ffffffff81272639>] ? ima_bprm_check+0x49/0x50 > [ 587.145018] [<ffffffff81206690>] ? load_elf_library+0x230/0x230 > [ 587.145018] [<ffffffff811b6355>] ? search_binary_handler+0xf5/0x310 > [ 587.145018] [<ffffffff811b78e9>] ? do_execve_common.isra.22+0x559/0x650 > [ 587.145018] [<ffffffff811b7c76>] ? SyS_execve+0x36/0x50 > [ 587.145018] [<ffffffff815f2b89>] ? stub_execve+0x69/0xa0 > [ 587.145018] Code: 8d 55 f0 48 8d 4d f4 e8 b4 8e a2 ff 66 90 48 8b 55 > f8 65 48 33 14 25 28 00 00 00 8b 45 e8 74 05 e8 ab 3a a8 ff c9 c3 55 48 > 89 e5 <0f> 0b 66 66 66 66 90 55 48 89 e5 0f 0b 55 48 89 e5 0f 0b 66 66 > [ 587.145018] RIP [<ffffffff815da23b>] enter_lazy.part.0+0x4/0x6 > [ 587.145018] RSP <ffff8800ff403ab0> > [ 587.145018] ---[ end trace 8566ed161f106c20 ]--- > [ 587.145018] Kernel panic - not syncing: Fatal exception in interrupt > > > > > -- > Shaun Reitan > NDCHost.com > > ------ Original Message ------ > From: "Johnny Hughes" <johnny@xxxxxxxxxx <mailto:johnny@xxxxxxxxxx>> > To: centos-virt@xxxxxxxxxx <mailto:centos-virt@xxxxxxxxxx> > Sent: 2018-01-06 05:34:22 AM > Subject: Re: Centos 7 Kernel 3.10.0-693.11.6.el7.x86_64 > does not boot PV > >> On 01/06/2018 03:16 AM, Dmitry Melekhov wrote: >>> The same problem with latest centos 6 kernel,i.e. with meltdown fix. >>> >>> I can't see console output, because I have it on "cloud" provider >>> hosting :-) >>> >>> >>> >>> 06.01.2018 05:13, Shaun Reitan пишет: >>>> Broken! >>>> >>>> >> >> >> For those of you looking for a PV enabled client Kernel for CentOS Linux >> 7 DomU VMs, you can use our Experimental kernel from here: >> >> http://mirror.centos.org/altarch/7/experimental/x86_64/ >> >> There is a repo file at the BOTTOM of this wiki page that you can use to >> enable the experimental repo: >> >> https://wiki.centos.org/SpecialInterestGroup/AltArch/i386 >> >> That experimental repo file will work for x86_64 or i386 installs and >> the latest released kernel (kernel-4.9.75-204.el7.centos). This kernel >> has the CONFIG_PAGE_TABLE_ISOLATION=y security fixes (used to be >> CONFIG_KAISER .. and still is in the Red Hat released kernels). >> >> You could also use the Dom0 kernels from the Xen repo as DomU kernels >> for your PV VMs if you want. Currently the 4.9.75 Xen kernels are in >> the testing repo and waiting for tests to release. >> >> Thanks, >> Johnny Hughes >> >> > > > _______________________________________________ > CentOS-virt mailing list > CentOS-virt@xxxxxxxxxx > https://lists.centos.org/mailman/listinfo/centos-virt >
Attachment:
signature.asc
Description: OpenPGP digital signature
_______________________________________________ CentOS-virt mailing list CentOS-virt@xxxxxxxxxx https://lists.centos.org/mailman/listinfo/centos-virt
