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SubjectWARNING: static_key_slow_dec used before call to jump_label_init
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Hello,

I booted kernel with cgroup_disable=cpu and get this warning:

[ 0.000000] Kernel command line:
BOOT_IMAGE=/boot/vmlinuz-4.3.0-rc2-next-20150923 no_timer_check
console=ttyS0,115200n8 root=UUID=01bc7316-b1f4-45c9-a23a-0
[ 0.000000] ------------[ cut here ]------------
[ 0.000000] WARNING: CPU: 0 PID: 0 at kernel/jump_label.c:99
static_key_slow_dec+0x44/0x60()
[ 0.000000] static_key_slow_dec used before call to jump_label_init
[ 0.000000] Modules linked in:

[ 0.000000] CPU: 0 PID: 0 Comm: swapper Not tainted
4.3.0-rc2-next-20150924 #1
[ 0.000000] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 0.000000] 0000000000000000 ebd8af5cfcdffb28 ffffffff81c03da8
ffffffff813b18c2
[ 0.000000] ffffffff81c03df0 ffffffff81c03de0 ffffffff8108dd52
ffffffff81c5bad0
[ 0.000000] ffff88003ffe663a ffffffff81c49a00 0000000000000001
ffff88003ffe662b
[ 0.000000] Call Trace:
[ 0.000000] [<ffffffff813b18c2>] dump_stack+0x44/0x62
[ 0.000000] [<ffffffff8108dd52>] warn_slowpath_common+0x82/0xc0
[ 0.000000] [<ffffffff8108ddec>] warn_slowpath_fmt+0x5c/0x80
[ 0.000000] [<ffffffff8119c054>] static_key_slow_dec+0x44/0x60
[ 0.000000] [<ffffffff81d826b6>] cgroup_disable+0xaf/0xd6
[ 0.000000] [<ffffffff81d5f9de>] unknown_bootoption+0x8c/0x194
[ 0.000000] [<ffffffff810b0c03>] parse_args+0x273/0x4a0
[ 0.000000] [<ffffffff8119d592>] ? printk+0x57/0x73
[ 0.000000] [<ffffffff81d5fd67>] start_kernel+0x205/0x4b8
[ 0.000000] [<ffffffff81d5f952>] ? set_init_arg+0x55/0x55
[ 0.000000] [<ffffffff81d5f120>] ? early_idt_handler_array+0x120/0x120
[ 0.000000] [<ffffffff81d5f315>] x86_64_start_reservations+0x2a/0x2c
[ 0.000000] [<ffffffff81d5f461>] x86_64_start_kernel+0x14a/0x16d
[ 0.000000] ---[ end trace 8a774ae3ff020690 ]---

Thanks,
Andrew


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