releases/4.19.51/uml-fix-a-boot-splat-wrt-use-of-cpu_all_mask.patch

   1 From b13ad3c792ff791c3f557a1339475f6a30499b96 Mon Sep 17 00:00:00 2001
   2 From: =?UTF-8?q?Maciej=20=C5=BBenczykowski?= <maze@google.com>
   3 Date: Wed, 10 Apr 2019 11:11:23 -0700
   4 Subject: uml: fix a boot splat wrt use of cpu_all_mask
   5 MIME-Version: 1.0
   6 Content-Type: text/plain; charset=UTF-8
   7 Content-Transfer-Encoding: 8bit
   8
   9 [ Upstream commit 689a58605b63173acb0a8cf954af6a8f60440c93 ]
  10
  11 Memory: 509108K/542612K available (3835K kernel code, 919K rwdata, 1028K rodata, 129K init, 211K bss, 33504K reserved, 0K cma-reserved)
  12 NR_IRQS: 15
  13 clocksource: timer: mask: 0xffffffffffffffff max_cycles: 0x1cd42e205, max_idle_ns: 881590404426 ns
  14 ------------[ cut here ]------------
  15 WARNING: CPU: 0 PID: 0 at kernel/time/clockevents.c:458 clockevents_register_device+0x72/0x140
  16 posix-timer cpumask == cpu_all_mask, using cpu_possible_mask instead
  17 Modules linked in:
  18 CPU: 0 PID: 0 Comm: swapper Not tainted 5.1.0-rc4-00048-ged79cc87302b #4
  19 Stack:
  20  604ebda0 603c5370 604ebe20 6046fd17
  21  00000000 6006fcbb 604ebdb0 603c53b5
  22  604ebe10 6003bfc4 604ebdd0 9000001ca
  23 Call Trace:
  24  [<6006fcbb>] ? printk+0x0/0x94
  25  [<60083160>] ? clockevents_register_device+0x72/0x140
  26  [<6001f16e>] show_stack+0x13b/0x155
  27  [<603c5370>] ? dump_stack_print_info+0xe2/0xeb
  28  [<6006fcbb>] ? printk+0x0/0x94
  29  [<603c53b5>] dump_stack+0x2a/0x2c
  30  [<6003bfc4>] __warn+0x10e/0x13e
  31  [<60070320>] ? vprintk_func+0xc8/0xcf
  32  [<60030fd6>] ? block_signals+0x0/0x16
  33  [<6006fcbb>] ? printk+0x0/0x94
  34  [<6003c08b>] warn_slowpath_fmt+0x97/0x99
  35  [<600311a1>] ? set_signals+0x0/0x3f
  36  [<6003bff4>] ? warn_slowpath_fmt+0x0/0x99
  37  [<600842cb>] ? tick_oneshot_mode_active+0x44/0x4f
  38  [<60030fd6>] ? block_signals+0x0/0x16
  39  [<6006fcbb>] ? printk+0x0/0x94
  40  [<6007d2d5>] ? __clocksource_select+0x20/0x1b1
  41  [<60030fd6>] ? block_signals+0x0/0x16
  42  [<6006fcbb>] ? printk+0x0/0x94
  43  [<60083160>] clockevents_register_device+0x72/0x140
  44  [<60031192>] ? get_signals+0x0/0xf
  45  [<60030fd6>] ? block_signals+0x0/0x16
  46  [<6006fcbb>] ? printk+0x0/0x94
  47  [<60002eec>] um_timer_setup+0xc8/0xca
  48  [<60001b59>] start_kernel+0x47f/0x57e
  49  [<600035bc>] start_kernel_proc+0x49/0x4d
  50  [<6006c483>] ? kmsg_dump_register+0x82/0x8a
  51  [<6001de62>] new_thread_handler+0x81/0xb2
  52  [<60003571>] ? kmsg_dumper_stdout_init+0x1a/0x1c
  53  [<60020c75>] uml_finishsetup+0x54/0x59
  54
  55 random: get_random_bytes called from init_oops_id+0x27/0x34 with crng_init=0
  56 ---[ end trace 00173d0117a88acb ]---
  57 Calibrating delay loop... 6941.90 BogoMIPS (lpj=34709504)
  58
  59 Signed-off-by: Maciej Żenczykowski <maze@google.com>
  60 Cc: Jeff Dike <jdike@addtoit.com>
  61 Cc: Richard Weinberger <richard@nod.at>
  62 Cc: Anton Ivanov <anton.ivanov@cambridgegreys.com>
  63 Cc: linux-um@lists.infradead.org
  64 Cc: linux-kernel@vger.kernel.org
  65
  66 Signed-off-by: Richard Weinberger <richard@nod.at>
  67 Signed-off-by: Sasha Levin <sashal@kernel.org>
  68 ---
  69  arch/um/kernel/time.c | 2 +-
  70  1 file changed, 1 insertion(+), 1 deletion(-)
  71
  72 diff --git a/arch/um/kernel/time.c b/arch/um/kernel/time.c
  73 index 052de4c8acb2..0c572a48158e 100644
  74 --- a/arch/um/kernel/time.c
  75 +++ b/arch/um/kernel/time.c
  76 @@ -56,7 +56,7 @@ static int itimer_one_shot(struct clock_event_device *evt)
  77  static struct clock_event_device timer_clockevent = {
  78         .name                   = "posix-timer",
  79         .rating                 = 250,
  80 -       .cpumask                = cpu_all_mask,
  81 +       .cpumask                = cpu_possible_mask,
  82         .features               = CLOCK_EVT_FEAT_PERIODIC |
  83                                   CLOCK_EVT_FEAT_ONESHOT,
  84         .set_state_shutdown     = itimer_shutdown,
  85 --
  86 2.20.1
  87