Launchpad has imported 7 comments from the remote bug at https://bugzilla.redhat.com/show_bug.cgi?id=1175261.
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Read more about Launchpad's inter-bugtracker facilities at https://help.launchpad.net/InterBugTracking. ------------------------------------------------------------------------ On 2014-12-17T11:40:48+00:00 Benjamin wrote: When I hot-plug a CPU to a Fedora 21 VM running on KVM, I get following kernel bug: $ uname -a Linux fedora 3.17.6-300.fc21.x86_64 #1 SMP Mon Dec 8 22:29:32 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux $ journalctl Dez 17 10:40:21 fedora kernel: CPU1 has been hot-added Dez 17 10:40:21 fedora kernel: SMP alternatives: switching to SMP code Dez 17 10:40:21 fedora kernel: x86: Booting SMP configuration: Dez 17 10:40:21 fedora kernel: smpboot: Booting Node 0 Processor 1 APIC 0x1 Dez 17 10:40:21 fedora kernel: kvm-clock: cpu 1, msr 0:3ffca041, secondary cpu clock Dez 17 10:40:21 fedora kernel: kvm: enabling virtualization on CPU1 Dez 17 10:40:21 fedora kernel: KVM setup async PF for cpu 1 Dez 17 10:40:21 fedora kernel: kvm-stealtime: cpu 1, msr 3de2d100 Dez 17 10:40:21 fedora kernel: kobject '(null)' (ffff88003de3b4d8): tried to add an uninitialized object, something is seriously wrong. Dez 17 10:40:21 fedora kernel: CPU: 1 PID: 1056 Comm: systemd-udevd Not tainted 3.17.6-300.fc21.x86_64 #1 Dez 17 10:40:21 fedora kernel: Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 Dez 17 10:40:21 fedora kernel: 0000000000000000 00000000ffd31f20 ffff88003b593c68 ffffffff8173f8aa Dez 17 10:40:21 fedora kernel: ffff88003de3b4d8 ffff88003b593ce0 ffffffff813850e6 ffffffff00000020 Dez 17 10:40:21 fedora kernel: ffff88003b593cf0 ffff88003b593c98 00000000ffd31f20 0000000000000002 Dez 17 10:40:21 fedora kernel: Call Trace: Dez 17 10:40:21 fedora kernel: [<ffffffff8173f8aa>] dump_stack+0x45/0x56 Dez 17 10:40:21 fedora kernel: [<ffffffff813850e6>] kobject_add+0xc6/0xd0 Dez 17 10:40:21 fedora kernel: [<ffffffff81383bd5>] ? ida_get_new_above+0x1f5/0x220 Dez 17 10:40:21 fedora kernel: [<ffffffff81362376>] blk_mq_register_hctx+0xa6/0xc0 Dez 17 10:40:21 fedora kernel: [<ffffffff81362cb1>] blk_mq_sysfs_register+0x41/0x60 Dez 17 10:40:21 fedora kernel: [<ffffffff813606b2>] blk_mq_queue_reinit_notify+0x72/0xb0 Dez 17 10:40:21 fedora kernel: [<ffffffff810b62dd>] notifier_call_chain+0x4d/0x70 Dez 17 10:40:21 fedora kernel: [<ffffffff810b63ee>] __raw_notifier_call_chain+0xe/0x10 Dez 17 10:40:21 fedora kernel: [<ffffffff81097363>] cpu_notify+0x23/0x50 Dez 17 10:40:21 fedora kernel: [<ffffffff81097598>] _cpu_up+0x188/0x1a0 Dez 17 10:40:21 fedora kernel: [<ffffffff8109763a>] cpu_up+0x8a/0xb0 Dez 17 10:40:21 fedora kernel: [<ffffffff81738fa0>] cpu_subsys_online+0x40/0xa0 Dez 17 10:40:21 fedora kernel: [<ffffffff814975b5>] device_online+0x65/0x90 Dez 17 10:40:21 fedora kernel: [<ffffffff81497675>] online_store+0x95/0xa0 Dez 17 10:40:21 fedora kernel: [<ffffffff81494708>] dev_attr_store+0x18/0x30 Dez 17 10:40:21 fedora kernel: [<ffffffff812895fa>] sysfs_kf_write+0x3a/0x50 Dez 17 10:40:21 fedora kernel: [<ffffffff812889de>] kernfs_fop_write+0xee/0x180 Dez 17 10:40:21 fedora kernel: [<ffffffff8120c597>] vfs_write+0xb7/0x1f0 Dez 17 10:40:21 fedora kernel: [<ffffffff81060e21>] ? trace_do_page_fault+0x41/0x100 Dez 17 10:40:21 fedora kernel: [<ffffffff8120d1c5>] SyS_write+0x55/0xd0 Dez 17 10:40:21 fedora kernel: [<ffffffff81746a69>] system_call_fastpath+0x16/0x1b Dez 17 10:40:21 fedora kernel: microcode: CPU1: patch_level=0x01000065 Dez 17 10:40:21 fedora kernel: Will online and init hotplugged CPU: 1 I initially reported this bug in openSUSE and it was fixed in the Linus tree: https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=06a41a9 Reply at: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1403459/comments/10 ------------------------------------------------------------------------ On 2014-12-18T13:51:56+00:00 Josh wrote: Thanks for the report and the pointer to the patch. I've updated Fedora git to have this and it will be in the next build of each release. Reply at: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1403459/comments/23 ------------------------------------------------------------------------ On 2015-01-09T13:10:02+00:00 Fedora wrote: kernel-3.17.8-300.fc21 has been submitted as an update for Fedora 21. https://admin.fedoraproject.org/updates/kernel-3.17.8-300.fc21 Reply at: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1403459/comments/26 ------------------------------------------------------------------------ On 2015-01-09T13:10:54+00:00 Fedora wrote: kernel-3.17.8-200.fc20 has been submitted as an update for Fedora 20. https://admin.fedoraproject.org/updates/kernel-3.17.8-200.fc20 Reply at: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1403459/comments/27 ------------------------------------------------------------------------ On 2015-01-10T03:00:19+00:00 Fedora wrote: Package kernel-3.17.8-200.fc20: * should fix your issue, * was pushed to the Fedora 20 testing repository, * should be available at your local mirror within two days. Update it with: # su -c 'yum update --enablerepo=updates-testing kernel-3.17.8-200.fc20' as soon as you are able to, then reboot. Please go to the following url: https://admin.fedoraproject.org/updates/FEDORA-2015-0515/kernel-3.17.8-200.fc20 then log in and leave karma (feedback). Reply at: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1403459/comments/28 ------------------------------------------------------------------------ On 2015-01-11T02:58:01+00:00 Fedora wrote: kernel-3.17.8-300.fc21 has been pushed to the Fedora 21 stable repository. If problems still persist, please make note of it in this bug report. Reply at: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1403459/comments/29 ------------------------------------------------------------------------ On 2015-01-13T00:05:38+00:00 Fedora wrote: kernel-3.17.8-200.fc20 has been pushed to the Fedora 20 stable repository. If problems still persist, please make note of it in this bug report. Reply at: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1403459/comments/30 ** Changed in: linux (Fedora) Status: Unknown => Fix Released ** Changed in: linux (Fedora) Importance: Unknown => Undecided -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1403459 Title: kernel bug when hotplugging a CPU To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1403459/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
