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Message-ID: <20140722121345.GC3935@laptop>
Date: Tue, 22 Jul 2014 14:13:45 +0200
From: Peter Zijlstra <peterz@...radead.org>
To: "Rafael J. Wysocki" <rjw@...ysocki.net>
Cc: ACPI Devel Maling List <linux-acpi@...r.kernel.org>,
Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
Linux PM list <linux-pm@...r.kernel.org>,
Linux PCI <linux-pci@...r.kernel.org>,
Zhang Rui <rui.zhang@...el.com>
Subject: Re: [PATCH 0/3] ACPI / PM: Make ACPI-based PCI wakeup work for the
"freeze" sleep state
On Tue, Jul 22, 2014 at 02:23:03PM +0200, Rafael J. Wysocki wrote:
> > Doesn't break, doesn't 'work' either.
>
> This probably means that WoL on that machine is not ACPI-based.
Oh lovely, of course that's an 'option' !
> > Is there anything I can provide you with to make this easier? lspci output
> > or anything like that?
>
> Yes, /proc/interrupts from the machine in question would help to start with.
Be sure to get a _wide_ terminal when viewing ;-)
CPU0 CPU1 CPU2 CPU3 CPU4 CPU5 CPU6 CPU7 CPU8 CPU9 CPU10 CPU11 CPU12 CPU13 CPU14 CPU15 CPU16 CPU17 CPU18 CPU19 CPU20 CPU21 CPU22 CPU23
0: 433 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 IO-APIC-edge timer
1: 3 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 IO-APIC-edge i8042
3: 4 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 IO-APIC-edge
4: 357 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 IO-APIC-edge serial
8: 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 IO-APIC-edge rtc0
9: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 IO-APIC-fasteoi acpi
12: 4 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 IO-APIC-edge i8042
16: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 IO-APIC 16-fasteoi pata_jmicron, uhci_hcd:usb3
18: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 IO-APIC 18-fasteoi ehci_hcd:usb1, uhci_hcd:usb7, i801_smbus
19: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 IO-APIC 19-fasteoi uhci_hcd:usb4, uhci_hcd:usb6
23: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 IO-APIC 23-fasteoi ehci_hcd:usb2, uhci_hcd:usb5
25: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 PCI-MSI-edge aerdrv, PCIe PME
27: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 PCI-MSI-edge aerdrv, PCIe PME
29: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 PCI-MSI-edge aerdrv, PCIe PME
31: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 PCI-MSI-edge aerdrv, PCIe PME
33: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 PCI-MSI-edge aerdrv, PCIe PME
34: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 PCI-MSI-edge PCIe PME
35: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 PCI-MSI-edge PCIe PME
36: 2039 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 PCI-MSI-edge ahci
37: 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 PCI-MSI-edge eth0
38: 6467 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 PCI-MSI-edge eth0-TxRx-0
39: 5504 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 PCI-MSI-edge eth0-TxRx-1
40: 5298 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 PCI-MSI-edge eth0-TxRx-2
41: 5221 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 PCI-MSI-edge eth0-TxRx-3
42: 6415 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 PCI-MSI-edge eth0-TxRx-4
43: 5311 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 PCI-MSI-edge eth0-TxRx-5
44: 5231 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 PCI-MSI-edge eth0-TxRx-6
45: 5556 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 PCI-MSI-edge eth0-TxRx-7
NMI: 8 1 1 0 0 0 0 0 7 0 0 2 0 3 1 0 0 0 0 2 0 0 0 1 Non-maskable interrupts
LOC: 37022 15954 12352 10360 10326 9371 9760 9739 13134 11383 10975 11614 8692 15659 10999 9948 8597 8485 10011 15927 10431 10164 8530 10337 Local timer interrupts
SPU: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Spurious interrupts
PMI: 8 1 1 0 0 0 0 0 7 0 0 2 0 3 1 0 0 0 0 2 0 0 0 1 Performance monitoring interrupts
IWI: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 IRQ work interrupts
RTR: 15 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 APIC ICR read retries
RES: 1150 345 168 73 60 66 92 70 243 60 54 54 35 108 66 35 32 36 41 286 60 37 46 55 Rescheduling interrupts
CAL: 49 68 76 76 76 76 173 141 160 197 169 146 73 73 73 73 73 73 76 254 90 167 83 79 Function call interrupts
TLB: 0 0 0 0 0 0 0 0 1 1 0 0 1 0 0 0 0 0 0 3 1 0 1 0 TLB shootdowns
TRM: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Thermal event interrupts
THR: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Threshold APIC interrupts
MCE: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Machine check exceptions
MCP: 36 36 36 36 36 36 36 36 36 36 36 36 36 36 36 36 36 36 36 36 36 36 36 36 Machine check polls
ERR: 0
MIS: 0
> Also /sys/kernel/debug/wakeup_sources (if /sys/kernel/debug/ is where your debugfs
> lives) before
of course not, that's /debug :-)
name active_count event_count wakeup_count expire_count active_since total_time max_time last_change prevent_suspend_time
00:06 0 0 0 0 0 0 0 7066 0
00:02 0 0 0 0 0 0 0 7056 0
0000:00:1d.2 0 0 0 0 0 0 0 7056 0
0000:00:1d.1 0 0 0 0 0 0 0 7046 0
0000:00:1d.0 0 0 0 0 0 0 0 7035 0
0000:00:1a.2 0 0 0 0 0 0 0 7025 0
0000:00:1a.0 0 0 0 0 0 0 0 7015 0
0000:00:1d.7 0 0 0 0 0 0 0 7004 0
0000:00:1a.7 0 0 0 0 0 0 0 6982 0
0000:01:00.1 0 0 0 0 0 0 0 6797 0
0000:01:00.0 0 0 0 0 0 0 0 6591 0
alarmtimer 0 0 0 0 0 0 0 5012 0
PNP0C0C:00 0 0 0 0 0 0 0 1924 0
PNP0C0E:00 0 0 0 0 0 0 0 1924 0
LNXPWRBN:00 0 0 0 0 0 0 0 1922 0
PNP0A08:00 0 0 0 0 0 0 0 1838 0
device:2a 0 0 0 0 0 0 0 1802 0
device:29 0 0 0 0 0 0 0 1798 0
device:10 0 0 0 0 0 0 0 1763 0
device:02 0 0 0 0 0 0 0 1757 0
device:00 0 0 0 0 0 0 0 1746 0
device:01 0 0 0 0 0 0 0 1735 0
device:15 0 0 0 0 0 0 0 1730 0
device:13 0 0 0 0 0 0 0 1723 0
device:12 0 0 0 0 0 0 0 1718 0
device:11 0 0 0 0 0 0 0 1711 0
device:1f 0 0 0 0 0 0 0 1705 0
device:1b 0 0 0 0 0 0 0 1699 0
device:19 0 0 0 0 0 0 0 1693 0
device:18 0 0 0 0 0 0 0 1685 0
device:16 0 0 0 0 0 0 0 1678 0
device:28 0 0 0 0 0 0 0 1616 0
device:26 0 0 0 0 0 0 0 1612 0
device:24 0 0 0 0 0 0 0 1607 0
device:22 0 0 0 0 0 0 0 1602 0
device:20 0 0 0 0 0 0 0 1597 0
> and after a "freeze" with an attempt to use WoL to wake it up.
Issued 3 WoLs then hit the power button:
name active_count event_count wakeup_count expire_count active_since total_time max_time last_change prevent_suspend_time
00:06 0 0 0 0 0 0 0 7066 0
00:02 0 0 0 0 0 0 0 7056 0
0000:00:1d.2 0 0 0 0 0 0 0 7056 0
0000:00:1d.1 0 0 0 0 0 0 0 7046 0
0000:00:1d.0 0 0 0 0 0 0 0 7035 0
0000:00:1a.2 0 0 0 0 0 0 0 7025 0
0000:00:1a.0 0 0 0 0 0 0 0 7015 0
0000:00:1d.7 0 0 0 0 0 0 0 7004 0
0000:00:1a.7 0 0 0 0 0 0 0 6982 0
0000:01:00.1 0 0 0 0 0 0 0 6797 0
0000:01:00.0 0 0 0 0 0 0 0 6591 0
alarmtimer 0 0 0 0 0 0 0 5012 0
PNP0C0C:00 0 0 0 0 0 0 0 1924 0
PNP0C0E:00 0 0 0 0 0 0 0 1924 0
LNXPWRBN:00 1 1 0 0 0 0 0 10597988 0
PNP0A08:00 0 0 0 0 0 0 0 1838 0
device:2a 0 0 0 0 0 0 0 1802 0
device:29 0 0 0 0 0 0 0 1798 0
device:10 0 0 0 0 0 0 0 1763 0
device:02 0 0 0 0 0 0 0 1757 0
device:00 0 0 0 0 0 0 0 1746 0
device:01 0 0 0 0 0 0 0 1735 0
device:15 0 0 0 0 0 0 0 1730 0
device:13 0 0 0 0 0 0 0 1723 0
device:12 0 0 0 0 0 0 0 1718 0
device:11 0 0 0 0 0 0 0 1711 0
device:1f 0 0 0 0 0 0 0 1705 0
device:1b 0 0 0 0 0 0 0 1699 0
device:19 0 0 0 0 0 0 0 1693 0
device:18 0 0 0 0 0 0 0 1685 0
device:16 0 0 0 0 0 0 0 1678 0
device:28 0 0 0 0 0 0 0 1616 0
device:26 0 0 0 0 0 0 0 1612 0
device:24 0 0 0 0 0 0 0 1607 0
device:22 0 0 0 0 0 0 0 1602 0
device:20 0 0 0 0 0 0 0 1597 0
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