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Message-ID: <1541710771.12945.7.camel@gmx.us>
Date: Thu, 08 Nov 2018 15:59:31 -0500
From: Qian Cai <cai@....us>
To: linux-kernel@...r.kernel.org
Cc: Thomas Gleixner <tglx@...utronix.de>,
Jason Cooper <jason@...edaemon.net>,
Marc Zyngier <marc.zyngier@....com>
Subject: WARNING: CPU: 0 PID: 0 at drivers/irqchip/irq-gic-v3-its.c
Just booting up the latest git master (b00d209) on an aarch64 server and saw
this. Not sure about the third warning (at kernel/cpu.c:315
lockdep_assert_cpus_held+0x50/0x60) relates to irqchip or not, but appended it
to here anyway just in case.
[ 0.000000] WARNING: CPU: 0 PID: 0 at drivers/irqchip/irq-gic-v3-its.c:1696
its_init+0x588/0xb54
[ 0.000000] Modules linked in:
[ 0.000000] CPU: 0 PID: 0 Comm: swapper/0 Tainted: G T 4.20.0-
rc1+ #7
[ 0.000000] pstate: 60000085 (nZCv daIf -PAN -UAO)
[ 0.000000] pc : its_init+0x588/0xb54
[ 0.000000] lr : its_init+0x558/0xb54
[ 0.000000] sp : ffff200009ca79d0
[ 0.000000] x29: ffff200009ca79d0 x28: 0000001dc0fb0000
[ 0.000000] x27: ffff7fe007703ec0 x26: 3fe2e7a5444e6979
[ 0.000000] x25: ffff2000093a8000 x24: 0000000000010000
[ 0.000000] x23: ffff200009ce61a0 x22: 1fffe40001394f4e
[ 0.000000] x21: ffff200009f84000 x20: ffff20000c0c3000
[ 0.000000] x19: ffff200008fb2000 x18: 000000000000003f
[ 0.000000] x17: 0000000000000000 x16: 0000000000000000
[ 0.000000] x15: 0000000000000007 x14: ffff200009ceea80
[ 0.000000] x13: ffff200009ceea80 x12: ffff801dc0d60f80
[ 0.000000] x11: ffff801dc0d6f080 x10: ffff200009ceea80
[ 0.000000] x9 : 0000000000000000 x8 : ffff801dc0fc0000
[ 0.000000] x7 : a2a2a2a2a2a2a2a2 x6 : ffff1003b81f7fff
[ 0.000000] x5 : ffff801dc0fbffff x4 : 0000000000000000
[ 0.000000] x3 : 000000000000003f x2 : dfff200000000000
[ 0.000000] x1 : 0000000000010000 x0 : 6667f74e4ba50b25
[ 0.000000] Call trace:
[ 0.000000] its_init+0x588/0xb54
[ 0.000000] gic_init_bases+0x53c/0x5d4
[ 0.000000] gic_acpi_init+0x2cc/0x564
[ 0.000000] acpi_match_madt+0x9c/0x15c
[ 0.000000] acpi_table_parse_entries_array+0x3e0/0x5d8
[ 0.000000] acpi_table_parse_entries+0xbc/0x114
[ 0.000000] acpi_table_parse_madt+0x4c/0x80
[ 0.000000] __acpi_probe_device_table+0x134/0x1ec
[ 0.000000] irqchip_init+0x48/0x74
[ 0.000000] init_IRQ+0xe4/0x12c
[ 0.000000] start_kernel+0x4d0/0x7d4
[ 0.000000] irq event stamp: 0
[ 0.000000] hardirqs last enabled at (0):
[<0000000000000000>] (null)
[ 0.000000] hardirqs last disabled at (0):
[<0000000000000000>] (null)
[ 0.000000] softirqs last enabled at (0):
[<0000000000000000>] (null)
[ 0.000000] softirqs last disabled at (0):
[<0000000000000000>] (null)
[ 0.000000] ---[ end trace f27c5aed63f8afd4 ]---
[ 0.000000] GICv3: using LPI property table @0x0000001dc0fb0000
[ 0.000000] ITS: Using DirectLPI for VPE invalidation
[ 0.000000] ITS: Enabling GICv4 support
[ 0.000000] WARNING: CPU: 0 PID: 0 at drivers/irqchip/irq-gic-v3-its.c:2096
its_cpu_init_lpis+0x3b4/0x3f0
[ 0.000000] Modules linked in:
[ 0.000000] CPU: 0 PID: 0 Comm: swapper/0 Tainted: G W T 4.20.0-
rc1+ #7
[ 0.000000] pstate: 60000085 (nZCv daIf -PAN -UAO)
[ 0.000000] pc : its_cpu_init_lpis+0x3b4/0x3f0
[ 0.000000] lr : its_cpu_init_lpis+0x3b0/0x3f0
[ 0.000000] sp : ffff200009ca7a00
[ 0.000000] x29: ffff200009ca7a00 x28: ffff200009ce6188
[ 0.000000] x27: 0000601df1e30000 x26: ffff200009ca7a00
[ 0.000000] x25: 0000001dc0fc0000 x24: ffff20000c0c3000
[ 0.000000] x23: ffff7fe007703f00 x22: ffff2000093a8000
[ 0.000000] x21: ffff20000c180000 x20: ffff200009cd9000
[ 0.000000] x19: 1fffe40001394f4c x18: 000000000000003f
[ 0.000000] x17: 0000000000000000 x16: 0000000000000000
[ 0.000000] x15: 0000000000000007 x14: ffff2000094f050c
[ 0.000000] x13: ffff2000094f3cac x12: ffff2000094e7248
[ 0.000000] x11: ffff2000094e69e0 x10: ffff2000094e9d18
[ 0.000000] x9 : 1fffe40001394e5c x8 : ffff040001394edf
[ 0.000000] x7 : 0000000041b58ab3 x6 : 00000000f1f1f1f1
[ 0.000000] x5 : 0000000041b58ab3 x4 : 00000000f1f1f1f1
[ 0.000000] x3 : ffff040001394f4c x2 : 000000000000ffff
[ 0.000000] x1 : 0000000000010000 x0 : 00000000ffffffed
[ 0.000000] Call trace:
[ 0.000000] its_cpu_init_lpis+0x3b4/0x3f0
[ 0.000000] its_cpu_init+0xa8/0x220
[ 0.000000] gic_init_bases+0x540/0x5d4
[ 0.000000] gic_acpi_init+0x2cc/0x564
[ 0.000000] acpi_match_madt+0x9c/0x15c
[ 0.000000] acpi_table_parse_entries_array+0x3e0/0x5d8
[ 0.000000] acpi_table_parse_entries+0xbc/0x114
[ 0.000000] acpi_table_parse_madt+0x4c/0x80
[ 0.000000] __acpi_probe_device_table+0x134/0x1ec
[ 0.000000] irqchip_init+0x48/0x74
[ 0.000000] init_IRQ+0xe4/0x12c
[ 0.000000] start_kernel+0x4d0/0x7d4
[ 0.000000] irq event stamp: 0
[ 0.000000] hardirqs last enabled at (0):
[<0000000000000000>] (null)
[ 0.000000] hardirqs last disabled at (0):
[<0000000000000000>] (null)
[ 0.000000] softirqs last enabled at (0):
[<0000000000000000>] (null)
[ 0.000000] softirqs last disabled at (0):
[<0000000000000000>] (null)
[ 0.000000] ---[ end trace f27c5aed63f8afd5 ]---
[ 0.000000] GICv3: CPU0: using allocated LPI pending table
@0x0000001dc0fc0000
[ 0.000000] rcu: Offload RCU callbacks from CPUs: (none).
[ 0.000000] WARNING: CPU: 0 PID: 0 at kernel/cpu.c:315
lockdep_assert_cpus_held+0x50/0x60
[ 0.000000] Modules linked in:
[ 0.000000] CPU: 0 PID: 0 Comm: swapper/0 Tainted: G W T 4.20.0-
rc1+ #7
[ 0.000000] pstate: 20000085 (nzCv daIf -PAN -UAO)
[ 0.000000] pc : lockdep_assert_cpus_held+0x50/0x60
[ 0.000000] lr : lockdep_assert_cpus_held+0x4c/0x60
[ 0.000000] sp : ffff200009ca7b10
[ 0.000000] x29: ffff200009ca7b10 x28: ffff200009e49000
[ 0.000000] x27: ffff200009ce1000 x26: ffff200009ce2000
[ 0.000000] x25: ffff200009135000 x24: ffff200009cd9868
[ 0.000000] x23: ffff200009c8c040 x22: 0000000000001000
[ 0.000000] x21: 0000000000000012 x20: ffff200009cd9000
[ 0.000000] x19: ffff200009ce5000 x18: 000000000000003f
[ 0.000000] x17: 0000000000000000 x16: 0000000000000000
[ 0.000000] x15: 0000000000000007 x14: ffff200009471ccc
[ 0.000000] x13: ffff2000094795a0 x12: ffff2000095249ac
[ 0.000000] x11: ffff2000094f4470 x10: ffff2000094f0a44
[ 0.000000] x9 : ffff200009526aa8 x8 : ffff0ffbffcc4004
[ 0.000000] x7 : 1fffeffbffcc4003 x6 : ffff0ffbffcc4003
[ 0.000000] x5 : ffff7fdffe62001b x4 : ffff0ffbffcc4004
[ 0.000000] x3 : ffff0ffbffcc4004 x2 : dfff200000000000
[ 0.000000] x1 : 0000000000000000 x0 : 0000000000000000
[ 0.000000] Call trace:
[ 0.000000] lockdep_assert_cpus_held+0x50/0x60
[ 0.000000] static_key_enable_cpuslocked+0x30/0xe8
[ 0.000000] arch_timer_check_ool_workaround+0x128/0x2d0
[ 0.000000] arch_timer_acpi_init+0x274/0x6ac
[ 0.000000] acpi_table_parse+0x1ac/0x218
[ 0.000000] __acpi_probe_device_table+0x164/0x1ec
[ 0.000000] timer_probe+0x1bc/0x254
[ 0.000000] time_init+0x44/0x98
[ 0.000000] start_kernel+0x4ec/0x7d4
[ 0.000000] irq event stamp: 0
[ 0.000000] hardirqs last enabled at (0):
[<0000000000000000>] (null)
[ 0.000000] hardirqs last disabled at (0):
[<0000000000000000>] (null)
[ 0.000000] softirqs last enabled at (0):
[<0000000000000000>] (null)
[ 0.000000] softirqs last disabled at (0):
[<0000000000000000>] (null)
[ 0.000000] ---[ end trace f27c5aed63f8afd6 ]---
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