Hello,
I have been seeing the warning below at boot time on 3.18.7-rt2. Anybody
else seeing it?
[ 1.537207] ------------[ cut here ]------------
[ 1.537215] WARNING: CPU: 1 PID: 20 at /home/lclaudio/SANDBOX/kernel-rt/kernel/time/tick-sched.c:167 can_stop_full_tick+0x1ee/0x2b0()
[ 1.537219] Modules linked in: efivarfs
[ 1.537224] CPU: 1 PID: 20 Comm: ksoftirqd/1 Not tainted 3.18.7-rt2+ #2
[ 1.537225] Hardware name: Hewlett-Packard p7-1512/2ADA, BIOS 8.15 02/05/2013
[ 1.537227] 0000000000000000 000000005b4bc999 ffff880191503bb8 ffffffff8175a165
[ 1.537228] 0000000000000000 0000000000000000 ffff880191503bf8 ffffffff8107add1
[ 1.537229] ffff880191503be8 ffff880198fce280 ffff880198e00000 0000000000000000
[ 1.537229] Call Trace:
[ 1.537233] [<ffffffff8175a165>] dump_stack+0x4f/0x7c
[ 1.537235] [<ffffffff8107add1>] warn_slowpath_common+0x81/0xc0
[ 1.537237] [<ffffffff8107af0a>] warn_slowpath_null+0x1a/0x20
[ 1.537238] [<ffffffff811074fe>] can_stop_full_tick+0x1ee/0x2b0
[ 1.537240] [<ffffffff81107656>] __tick_nohz_full_check+0x76/0xc0
[ 1.537241] [<ffffffff811076ae>] nohz_full_kick_work_func+0xe/0x10
[ 1.537243] [<ffffffff8116ff7c>] irq_work_run_list+0x3c/0x60
[ 1.537244] [<ffffffff8117037e>] irq_work_tick+0x3e/0x90
[ 1.537246] [<ffffffff810f25c4>] run_timer_softirq+0x44/0x3b0
[ 1.537248] [<ffffffff81760855>] ? _raw_spin_unlock+0x35/0x60
[ 1.537250] [<ffffffff810b0b89>] ? vtime_account_system+0x99/0xb0
[ 1.537252] [<ffffffff810b0d9b>] ? vtime_common_account_irq_enter+0x4b/0x80
[ 1.537254] [<ffffffff8107fbd4>] do_current_softirqs.isra.11+0x274/0x550
[ 1.537255] [<ffffffff8107ff86>] run_ksoftirqd+0x26/0x50
[ 1.537257] [<ffffffff810a1a0d>] smpboot_thread_fn+0x18d/0x2d0
[ 1.537259] [<ffffffff810a1880>] ? SyS_setgroups+0x150/0x150
[ 1.537260] [<ffffffff8109d68d>] kthread+0xfd/0x120
[ 1.537262] [<ffffffff8175e177>] ? wait_for_completion+0xe7/0x120
[ 1.537264] [<ffffffff8109d590>] ? kthread_create_on_node+0x260/0x260
[ 1.537266] [<ffffffff817618ac>] ret_from_fork+0x7c/0xb0
[ 1.537267] [<ffffffff8109d590>] ? kthread_create_on_node+0x260/0x260
[ 1.537268] ---[ end trace 0000000000000002 ]---
>From kernel/time/tick-sched.c line 167:
static bool can_stop_full_tick(void)
{
WARN_ON_ONCE(!irqs_disabled());
The config in use, NO_HZ related is:
CONFIG_NO_HZ_COMMON=y
# CONFIG_NO_HZ_IDLE is not set
CONFIG_NO_HZ_FULL=y
CONFIG_NO_HZ_FULL_ALL=y
CONFIG_NO_HZ_FULL_SYSIDLE=y
CONFIG_NO_HZ_FULL_SYSIDLE_SMALL=8
CONFIG_NO_HZ=y
CONFIG_HZ_1000=y
CONFIG_HZ=1000
Cheers,
Luis
--
[ Luis Claudio R. Goncalves Bass - Gospel - RT ]
[ Fingerprint: 4FDD B8C4 3C59 34BD 8BE9 2696 7203 D980 A448 C8F8 ]
--
To unsubscribe from this list: send the line "unsubscribe linux-rt-users" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
