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
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https://bugs.launchpad.net/bugs/1771546
Title:
WARNING: setup_local_APIC+0x27f/0x340
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