Thomas Gleixner 8438e49bca cpu/hotplug: Boot HT siblings at least once ...

commit 0cc3cd2165 upstream

Due to the way Machine Check Exceptions work on X86 hyperthreads it's
required to boot up _all_ logical cores at least once in order to set the
CR4.MCE bit.

So instead of ignoring the sibling threads right away, let them boot up
once so they can configure themselves. After they came out of the initial
boot stage check whether its a "secondary" sibling and cancel the operation
which puts the CPU back into offline state.

[dwmw2: Backport to 4.9]

Reported-by: Dave Hansen <dave.hansen@intel.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Tested-by: Tony Luck <tony.luck@intel.com>
Signed-off-by: David Woodhouse <dwmw@amazon.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2018-08-15 18:14:47 +02:00

..

bpf

bpf: fix references to free_bpf_prog_info() in comments

2018-08-03 07:55:23 +02:00

configs

config: android: enable CONFIG_SECCOMP

2016-10-11 15:06:32 -07:00

debug

kdb: make "mdr" command repeat

2018-05-30 07:50:51 +02:00

events

perf/core: Fix perf_output_read_group()

2018-05-30 07:50:46 +02:00

gcov

gcov: support GCC 7.1

2017-09-02 07:07:53 +02:00

irq

genirq: Make force irq threading setup more robust

2018-08-09 12:17:57 +02:00

livepatch

…

locking

locking/qspinlock: Ensure node->count is updated before initialising node

2018-05-30 07:50:26 +02:00

power

PM / hibernate: Fix oops at snapshot_write()

2018-07-17 11:37:54 +02:00

printk

printk: fix possible reuse of va_list variable

2018-07-03 11:23:10 +02:00

rcu

rcu: Call touch_nmi_watchdog() while printing stall warnings

2018-05-30 07:50:50 +02:00

sched

sched/wait: Remove the lockless swait_active() check in swake_up*()

2018-08-06 16:23:02 +02:00

time

nohz: Fix local_timer_softirq_pending()

2018-08-09 12:17:57 +02:00

trace

ring_buffer: tracing: Inherit the tracing setting to next ring buffer

2018-08-09 12:17:59 +02:00

.gitignore

…

acct.c

kernel/acct.c: fix the acct->needcheck check in check_free_space()

2018-01-10 09:29:51 +01:00

async.c

kernel/async.c: revert "async: simplify lowest_in_progress()"

2018-02-17 13:21:18 +01:00

audit_fsnotify.c

…

audit_tree.c

…

audit_watch.c

audit: Fix use after free in audit_remove_watch_rule()

2017-08-24 17:12:18 -07:00

audit.c

audit: return on memory error to avoid null pointer dereference

2018-05-30 07:50:49 +02:00

audit.h

…

auditfilter.c

audit: allow not equal op for audit by executable

2018-08-03 07:55:25 +02:00

auditsc.c

audit: allow not equal op for audit by executable

2018-08-03 07:55:25 +02:00

backtracetest.c

…

bounds.c

…

capability.c

ptrace: Capture the ptracer's creds not PT_PTRACE_CAP

2017-01-06 10:40:13 +01:00

cgroup_freezer.c

…

cgroup_pids.c

cgroup/pids: remove spurious suspicious RCU usage warning

2017-03-26 13:05:58 +02:00

cgroup.c

cgroup: fix error return value from cgroup_subtree_control()

2017-08-11 08:49:28 -07:00

compat.c

…

configs.c

…

context_tracking.c

…

cpu_pm.c

…

cpu.c

cpu/hotplug: Boot HT siblings at least once

2018-08-15 18:14:47 +02:00

cpuset.c

sched/cpuset/pm: Fix cpuset vs. suspend-resume bugs

2017-10-12 11:51:25 +02:00

crash_dump.c

…

cred.c

…

delayacct.c

…

dma.c

…

elfcore.c

…

exec_domain.c

…

exit.c

kernel/exit.c: avoid undefined behaviour when calling wait4()

2018-05-19 10:27:01 +02:00

extable.c

kernel/extable.c: mark core_kernel_text notrace

2017-07-21 07:42:21 +02:00

fork.c

fork: unconditionally clear stack on fork

2018-08-09 12:18:00 +02:00

freezer.c

…

futex_compat.c

…

futex.c

futex: futex_wake_op, fix sign_extend32 sign bits

2018-05-19 10:27:00 +02:00

groups.c

kernel: make groups_sort calling a responsibility group_info allocators

2018-01-10 09:29:52 +01:00

hung_task.c

hung_task: allow hung_task_panic when hung_task_warnings is 0

2016-10-11 15:06:33 -07:00

irq_work.c

…

jump_label.c

jump_label: Invoke jump_label_test() via early_initcall()

2017-12-14 09:28:24 +01:00

kallsyms.c

…

kcmp.c

…

Kconfig.freezer

…

Kconfig.hz

…

Kconfig.locks

…

Kconfig.preempt

…

kcov.c

kcov: ensure irq code sees a valid area

2018-08-03 07:55:12 +02:00

kexec_core.c

objtool, x86: Add several functions and files to the objtool whitelist

2018-06-05 10:28:57 +02:00

kexec_file.c

kexec: fix double-free when failing to relocate the purgatory

2016-09-01 17:52:01 -07:00

kexec_internal.h

…

kexec.c

…

kmod.c

…

kprobes.c

kprobes/x86: Fix to set RWX bits correctly before releasing trampoline

2018-04-08 12:12:43 +02:00

ksysfs.c

…

kthread.c

kthread, tracing: Don't expose half-written comm when creating kthreads

2018-08-03 07:55:12 +02:00

latencytop.c

…

Makefile

kernel/watchdog.c: move hardlockup detector to separate file

2017-06-17 06:41:57 +02:00

membarrier.c

Fix: Disable sys_membarrier when nohz_full is enabled

2017-03-12 06:41:45 +01:00

memremap.c

mm: Fix devm_memremap_pages() collision handling

2018-02-28 10:18:34 +01:00

module_signing.c

…

module-internal.h

…

module.c

module: extend 'rodata=off' boot cmdline parameter to module mappings

2018-04-08 12:12:52 +02:00

notifier.c

…

nsproxy.c

…

padata.c

padata: free correct variable

2017-05-20 14:28:40 +02:00

panic.c

kernel/panic.c: add missing \n

2017-07-05 14:40:24 +02:00

params.c

…

pid_namespace.c

pid_ns: Sleep in TASK_INTERRUPTIBLE in zap_pid_ns_processes

2017-05-25 15:44:38 +02:00

pid.c

pidns: disable pid allocation if pid_ns_prepare_proc() is failed in alloc_pid()

2018-04-13 19:47:53 +02:00

profile.c

…

ptrace.c

ptrace: Properly initialize ptracer_cred on fork

2017-06-14 15:05:54 +02:00

range.c

…

reboot.c

…

relay.c

kernel/relay.c: limit kmalloc size to KMALLOC_MAX_SIZE

2018-05-30 07:50:29 +02:00

resource.c

resource: fix integer overflow at reallocation

2018-04-24 09:34:09 +02:00

seccomp.c

seccomp: Move speculation migitation control to arch code

2018-05-22 16:58:02 +02:00

signal.c

kernel/signal.c: avoid undefined behaviour in kill_something_info

2018-05-30 07:50:18 +02:00

smp.c

smp: Allocate smp_call_on_cpu() workqueue on stack too

2016-09-22 14:49:10 +02:00

smpboot.c

kthread/smpboot: do not park in kthread_create_on_cpu()

2016-10-11 15:06:33 -07:00

smpboot.h

…

softirq.c

Mark HI and TASKLET softirq synchronous

2018-08-15 18:14:42 +02:00

stacktrace.c

stacktrace, lockdep: Fix address, newline ugliness

2017-02-14 15:25:42 -08:00

stop_machine.c

stop_machine: Use raw spinlocks

2018-08-03 07:55:24 +02:00

sys_ni.c

x86/pkeys: Fix pkeys build breakage for some non-x86 arches

2016-09-13 14:41:36 +02:00

sys.c

kernel/sys.c: fix potential Spectre v1 issue

2018-05-30 07:50:18 +02:00

sysctl_binary.c

…

sysctl.c

timer/sysclt: Restrict timer migration sysctl values to 0 and 1

2017-10-05 09:44:04 +02:00

task_work.c

…

taskstats.c

taskstats: fix the length of cgroupstats_cmd_get_policy

2016-11-03 16:55:58 -04:00

test_kprobes.c

…

torture.c

…

tracepoint.c

tracepoint: Do not warn on ENOMEM

2018-05-09 09:50:20 +02:00

tsacct.c

…

ucount.c

kernel/ucount.c: mark user_header with kmemleak_ignore()

2017-06-17 06:41:51 +02:00

uid16.c

kernel: make groups_sort calling a responsibility group_info allocators

2018-01-10 09:29:52 +01:00

up.c

smp: Add function to execute a function synchronously on a CPU

2016-09-05 13:52:39 +02:00

user_namespace.c

Merge branch 'nsfs-ioctls' into HEAD

2016-09-22 20:00:36 -05:00

user-return-notifier.c

…

user.c

…

utsname_sysctl.c

…

utsname.c

Merge branch 'nsfs-ioctls' into HEAD

2016-09-22 20:00:36 -05:00

watchdog_hld.c

kernel/watchdog: prevent false hardlockup on overloaded system

2017-06-17 06:41:57 +02:00

watchdog.c

kernel/watchdog: prevent false hardlockup on overloaded system

2017-06-17 06:41:57 +02:00

workqueue_internal.h

workqueue: Fix NULL pointer dereference

2017-11-15 15:53:17 +01:00

workqueue.c

workqueue: use put_device() instead of kfree()

2018-05-30 07:50:36 +02:00