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Juergen Gross c185ddec54 xen/x86: fix cpu hotplug 
Commit dc6416f1d7 ("xen/x86: Call
cpu_startup_entry(CPUHP_AP_ONLINE_IDLE) from xen_play_dead()")
introduced an error leading to a stack overflow of the idle task when
a cpu was brought offline/online many times: by calling
cpu_startup_entry() instead of returning at the end of xen_play_dead()
do_idle() would be entered again and again.

Don't use cpu_startup_entry(), but cpuhp_online_idle() instead allowing
to return from xen_play_dead().

Cc: <stable@vger.kernel.org> # 4.12
Signed-off-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
 		2017-07-23 08:13:11 +02:00
..
boot x86/build: Silence the build with "make -s" 2017-07-20 10:46:24 +02:00
configs x86/defconfig: Remove stale, old Kconfig options 2017-07-20 10:28:19 +02:00
crypto Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 2017-07-14 22:49:50 -07:00
entry Merge branch 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm 2017-07-08 12:17:25 -07:00
events Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2017-07-21 11:20:58 -07:00
hyperv char/misc patches for 4.12-rc1 2017-05-04 19:15:35 -07:00
ia32 sched/headers: Prepare for new header dependencies before moving code to <linux/sched/task_stack.h> 2017-03-02 08:42:36 +01:00
include Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2017-07-21 11:20:58 -07:00
kernel x86/devicetree: Convert to using %pOF instead of ->full_name 2017-07-21 10:14:15 +02:00
kvm kvm: x86: hyperv: avoid livelock in oneshot SynIC timers 2017-07-20 17:00:00 +02:00
lguest Merge branch 'x86-boot-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2017-05-01 20:51:12 -07:00
lib include/linux/string.h: add the option of fortified string.h functions 2017-07-12 16:26:03 -07:00
math-emu x86/fpu/math-emu: Avoid bogus -Wint-in-bool-context warning 2017-07-20 10:46:24 +02:00
mm x86/mmap: properly account for stack randomization in mmap_base 2017-07-12 16:26:03 -07:00
net Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2017-07-05 12:31:59 -07:00
oprofile x86/oprofile/nmi: Convert to hotplug state machine 2016-11-22 23:34:43 +01:00
pci pci-v4.13-changes 2017-07-08 15:51:57 -07:00
platform x86/platform/uv/BAU: Disable BAU on single hub configurations 2017-07-21 09:56:25 +02:00
power x86/boot/e820: Introduce the bootloader provided e820_table_firmware[] table 2017-07-05 10:09:02 +02:00
purgatory kasan: do not sanitize kexec purgatory 2017-03-31 17:13:30 -07:00
ras x86/mce: Merge mce_amd_inj into mce-inject 2017-06-14 07:32:07 +02:00
realmode x86/boot/64: Rename init_level4_pgt and early_level4_pgt 2017-06-13 08:56:55 +02:00
tools x86/tools: Fix gcc-7 warning in relocs.c 2016-12-19 11:50:24 +01:00
um Merge branch 'for-linus-4.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/uml 2017-07-15 10:49:33 -07:00
video
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xen xen/x86: fix cpu hotplug 2017-07-23 08:13:11 +02:00
.gitignore
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Kbuild Drivers: hv vmbus: Move Hypercall page setup out of common code 2017-01-19 11:42:07 +01:00
Kconfig include/linux/string.h: add the option of fortified string.h functions 2017-07-12 16:26:03 -07:00
Kconfig.cpu
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Kconfig.debug x86/platform: Add PCI dependency for PUNIT_ATOM_DEBUG 2017-07-20 10:46:24 +02:00
Makefile Kbuild updates for v4.13 2017-07-07 14:09:24 -07:00
Makefile.um
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Makefile_32.cpu kbuild: remove cc-option-align 2017-06-25 12:43:00 +09:00