Public bug reported: when load kernel with kexec: /sbin/kexec -p --command-line="root=UUID=5f248d51-af51-4178-bd4d-763d4a6648b3 ro console=ttyS0 console=tty0 irqpoll maxcpus=1 nousb" --initrd=/boot/initrd.img-3.19.0-80-generic /boot/vmlinuz-3.19.0-80-generic
and then, triggers a panic: echo c > /proc/sysrq-trigger and now we got reboot into secondary kernel, but at this process, we will got this call trace with 100% reproducible: [14257.863168] Initializing cgroup subsys net_prio [14257.864506] Initializing cgroup subsys hugetlb [14257.865898] CPU: Physical Processor ID: 0 [14257.867035] CPU: Processor Core ID: 0 [14257.869296] mce: CPU supports 0 MCE banks [14257.870495] Last level iTLB entries: 4KB 64, 2MB 8, 4MB 8 [14257.870495] Last level dTLB entries: 4KB 64, 2MB 0, 4MB 0, 1GB 4 [14257.901734] ftrace: allocating 30063 entries in 118 pages [14258.976524] ------------[ cut here ]------------ [14258.983143] WARNING: CPU: 0 PID: 1 at /build/linux-lts-vivid-PmeBs4/linux-lts-vivid-3.19.0/arch/x86/kernel/apic/apic.c:1400 setup_local_APIC+0x27f/0x340() [14259.005863] Modules linked in: [14259.009221] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 3.19.0-80-generic #88~14.04.1-Ubuntu [14259.015315] Hardware name: innotek GmbH VirtualBox/VirtualBox, BIOS VirtualBox 12/01/2006 [14259.021134] 0000000000000000 ffff88003191fe18 ffffffff817b63c3 0000000000000000 [14259.036605] ffffffff81a8b9d0 ffff88003191fe58 ffffffff81075d6a ffff88003191fdfc [14259.055284] 0000000000000001 0000000000000000 00000000000000f0 0000000000000000 [14259.061414] Call Trace: [14259.063414] [<ffffffff817b63c3>] dump_stack+0x63/0x81 [14259.067742] [<ffffffff81075d6a>] warn_slowpath_common+0x8a/0xc0 [14259.076934] [<ffffffff81075e5a>] warn_slowpath_null+0x1a/0x20 [14259.085878] [<ffffffff8104c74f>] setup_local_APIC+0x27f/0x340 [14259.101292] [<ffffffff81d51236>] native_smp_prepare_cpus+0x2f2/0x3af [14259.111873] [<ffffffff81d3e1bd>] kernel_init_freeable+0xaf/0x1f9 [14259.114495] [<ffffffff817a6880>] ? rest_init+0x80/0x80 [14259.116783] [<ffffffff817a688e>] kernel_init+0xe/0xf0 [14259.118990] [<ffffffff817bde18>] ret_from_fork+0x58/0x90 [14259.121292] [<ffffffff817a6880>] ? rest_init+0x80/0x80 [14259.123341] ---[ end trace 7384fc8d5897e3f0 ]--- [14259.130738] Spurious LAPIC timer interrupt on cpu 0 [14259.153429] do_IRQ: 0.145 No irq handler for vector (irq -1) [14259.157634] ..TIMER: vector=0x30 apic1=0 pin1=2 apic2=-1 pin2=-1 [14259.161002] smpboot: CPU0: Intel(R) Core(TM) i5-6360U CPU @ 2.00GHz (fam: 06, model: 4e, stepping: 03) ** Affects: linux (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1771546 Title: WARNING: setup_local_APIC+0x27f/0x340 Status in linux package in Ubuntu: New Bug description: when load kernel with kexec: /sbin/kexec -p --command-line="root=UUID=5f248d51-af51-4178-bd4d-763d4a6648b3 ro console=ttyS0 console=tty0 irqpoll maxcpus=1 nousb" --initrd=/boot/initrd.img-3.19.0-80-generic /boot/vmlinuz-3.19.0-80-generic and then, triggers a panic: echo c > /proc/sysrq-trigger and now we got reboot into secondary kernel, but at this process, we will got this call trace with 100% reproducible: [14257.863168] Initializing cgroup subsys net_prio [14257.864506] Initializing cgroup subsys hugetlb [14257.865898] CPU: Physical Processor ID: 0 [14257.867035] CPU: Processor Core ID: 0 [14257.869296] mce: CPU supports 0 MCE banks [14257.870495] Last level iTLB entries: 4KB 64, 2MB 8, 4MB 8 [14257.870495] Last level dTLB entries: 4KB 64, 2MB 0, 4MB 0, 1GB 4 [14257.901734] ftrace: allocating 30063 entries in 118 pages [14258.976524] ------------[ cut here ]------------ [14258.983143] WARNING: CPU: 0 PID: 1 at /build/linux-lts-vivid-PmeBs4/linux-lts-vivid-3.19.0/arch/x86/kernel/apic/apic.c:1400 setup_local_APIC+0x27f/0x340() [14259.005863] Modules linked in: [14259.009221] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 3.19.0-80-generic #88~14.04.1-Ubuntu [14259.015315] Hardware name: innotek GmbH VirtualBox/VirtualBox, BIOS VirtualBox 12/01/2006 [14259.021134] 0000000000000000 ffff88003191fe18 ffffffff817b63c3 0000000000000000 [14259.036605] ffffffff81a8b9d0 ffff88003191fe58 ffffffff81075d6a ffff88003191fdfc [14259.055284] 0000000000000001 0000000000000000 00000000000000f0 0000000000000000 [14259.061414] Call Trace: [14259.063414] [<ffffffff817b63c3>] dump_stack+0x63/0x81 [14259.067742] [<ffffffff81075d6a>] warn_slowpath_common+0x8a/0xc0 [14259.076934] [<ffffffff81075e5a>] warn_slowpath_null+0x1a/0x20 [14259.085878] [<ffffffff8104c74f>] setup_local_APIC+0x27f/0x340 [14259.101292] [<ffffffff81d51236>] native_smp_prepare_cpus+0x2f2/0x3af [14259.111873] [<ffffffff81d3e1bd>] kernel_init_freeable+0xaf/0x1f9 [14259.114495] [<ffffffff817a6880>] ? rest_init+0x80/0x80 [14259.116783] [<ffffffff817a688e>] kernel_init+0xe/0xf0 [14259.118990] [<ffffffff817bde18>] ret_from_fork+0x58/0x90 [14259.121292] [<ffffffff817a6880>] ? rest_init+0x80/0x80 [14259.123341] ---[ end trace 7384fc8d5897e3f0 ]--- [14259.130738] Spurious LAPIC timer interrupt on cpu 0 [14259.153429] do_IRQ: 0.145 No irq handler for vector (irq -1) [14259.157634] ..TIMER: vector=0x30 apic1=0 pin1=2 apic2=-1 pin2=-1 [14259.161002] smpboot: CPU0: Intel(R) Core(TM) i5-6360U CPU @ 2.00GHz (fam: 06, model: 4e, stepping: 03) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1771546/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp