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Date: Mon, 27 Jul 2015 22:15:02 +0100
From: Matt Fleming <matt@...eblueprint.co.uk>
To: Jiang Liu <jiang.liu@...ux.intel.com>
Cc: Thomas Gleixner <tglx@...utronix.de>, linux-kernel@...r.kernel.org,
"H. Peter Anvin" <hpa@...or.com>, Ingo Molnar <mingo@...nel.org>,
Wolfram Sang <wsa@...-dreams.de>, linux-i2c@...r.kernel.org
Subject: Re: Regression in v4.2-rc1 caused by hierarchical irqdomain changes
On Tue, 28 Jul, at 12:35:36AM, Jiang Liu wrote:
> Hi Matt,
> Sorry for the regression. Could you please help to provide
> more information about the regression, such dmesg, /proc/interrupts
> and hardware(PCI) info from good and bad kernels?
See below. Let me know if you need anything else.
00:00.0 Host bridge: Intel Corporation Broadwell-U Host Bridge -OPI (rev 09)
00:02.0 VGA compatible controller: Intel Corporation Broadwell-U Integrated Graphics (rev 09)
00:03.0 Audio device: Intel Corporation Broadwell-U Audio Controller (rev 09)
00:04.0 Signal processing controller: Intel Corporation Broadwell-U Camarillo Device (rev 09)
00:14.0 USB controller: Intel Corporation Wildcat Point-LP USB xHCI Controller (rev 03)
00:16.0 Communication controller: Intel Corporation Wildcat Point-LP MEI Controller #1 (rev 03)
00:1c.0 PCI bridge: Intel Corporation Wildcat Point-LP PCI Express Root Port #1 (rev e3)
00:1c.3 PCI bridge: Intel Corporation Wildcat Point-LP PCI Express Root Port #4 (rev e3)
00:1f.0 ISA bridge: Intel Corporation Wildcat Point-LP LPC Controller (rev 03)
00:1f.2 SATA controller: Intel Corporation Wildcat Point-LP SATA Controller [AHCI Mode] (rev 03)
00:1f.3 SMBus: Intel Corporation Wildcat Point-LP SMBus Controller (rev 03)
00:1f.6 Signal processing controller: Intel Corporation Wildcat Point-LP Thermal Management Controller (rev 03)
01:00.0 Unassigned class [ff00]: Realtek Semiconductor Co., Ltd. RTS5249 PCI Express Card Reader (rev 01)
02:00.0 Network controller: Intel Corporation Wireless 7265 (rev 59)
[BAD]
CPU0 CPU1 CPU2 CPU3
0: 60 0 0 0 IR-IO-APIC 2-edge timer
1: 4535 2225 12990 2486 IR-IO-APIC 1-edge i8042
3: 1 0 0 0 IR-IO-APIC 3-edge
6: 0 0 0 0 IR-IO-APIC 6-edge dw_dmac
7: 15 1 0 0 IR-IO-APIC 7-edge INT3432:00, INT3433:00
8: 0 0 1 0 IR-IO-APIC 8-edge rtc0
9: 1078 737 1761 536 IR-IO-APIC 9-fasteoi acpi
12: 5 4 64 13 IR-IO-APIC 12-edge i8042
40: 0 0 0 0 DMAR-MSI 0-edge dmar0
41: 0 0 0 0 DMAR-MSI 1-edge dmar1
42: 0 0 0 0 IR-PCI-MSI 458752-edge PCIe PME
43: 0 0 0 0 IR-PCI-MSI 464896-edge PCIe PME
44: 263825 97055 149799 86574 IR-PCI-MSI 32768-edge i915
45: 4 1 20 1 IR-PCI-MSI 360448-edge mei_me
46: 8 7 10 5 IR-PCI-MSI 524288-edge rtsx_pci
47: 265262 96130 273599 126469 IR-PCI-MSI 512000-edge 0000:00:1f.2
48: 6151 3298 11082 2702 IR-PCI-MSI 327680-edge xhci_hcd
49: 826 91 920 257 IR-PCI-MSI 49152-edge snd_hda_intel
50: 363127 229106 850576 196544 IR-PCI-MSI 1048576-edge iwlwifi
NMI: 2190 2399 2221 1874 Non-maskable interrupts
LOC: 8199446 7602675 7137979 4973130 Local timer interrupts
SPU: 0 0 0 0 Spurious interrupts
PMI: 2190 2399 2221 1874 Performance monitoring interrupts
IWI: 0 1 1 0 IRQ work interrupts
RTR: 3 0 0 0 APIC ICR read retries
RES: 1117932 1200561 1398843 873543 Rescheduling interrupts
CAL: 145275 153343 122202 118672 Function call interrupts
TLB: 30552 30936 31487 32651 TLB shootdowns
TRM: 0 0 0 0 Thermal event interrupts
THR: 0 0 0 0 Threshold APIC interrupts
MCE: 0 0 0 0 Machine check exceptions
MCP: 71 71 71 71 Machine check polls
ERR: 15
MIS: 0
[GOOD]
CPU0 CPU1 CPU2 CPU3
0: 60 0 0 0 IR-IO-APIC-edge timer
1: 73 26 135 54 IR-IO-APIC-edge i8042
3: 16 17 49 20 IR-IO-APIC-fasteoi AudioDSP, dw_dmac
6: 0 0 0 0 IR-IO-APIC-fasteoi dw_dmac
7: 2662 3072 12307 5419 IR-IO-APIC-fasteoi INT3432:00, INT3433:00
8: 0 0 1 0 IR-IO-APIC-edge rtc0
9: 265 48 280 85 IR-IO-APIC-fasteoi acpi
12: 20 5 61 2 IR-IO-APIC-edge i8042
37: 0 0 0 0 IR-IO-APIC 37-fasteoi rt286
39: 415 74 480 116 IR-IO-APIC 39-fasteoi DLL0665:01
40: 0 0 0 0 DMAR-MSI 0-edge dmar0
41: 0 0 0 0 DMAR-MSI 1-edge dmar1
42: 0 0 0 0 IR-PCI-MSI 458752-edge PCIe PME
43: 0 0 0 0 IR-PCI-MSI 464896-edge PCIe PME
44: 1007 402 696 280 IR-PCI-MSI 32768-edge i915
45: 4 1 20 0 IR-PCI-MSI 360448-edge mei_me
46: 19 1 10 0 IR-PCI-MSI 524288-edge rtsx_pci
47: 12101 9057 14481 30320 IR-PCI-MSI 512000-edge 0000:00:1f.2
48: 64 29 126 27 IR-PCI-MSI 327680-edge xhci_hcd
49: 635 21 1179 269 IR-PCI-MSI 49152-edge snd_hda_intel
50: 147 60 164 222 IR-PCI-MSI 1048576-edge iwlwifi
NMI: 16 12 18 11 Non-maskable interrupts
LOC: 21542 28287 23149 17203 Local timer interrupts
SPU: 0 0 0 0 Spurious interrupts
PMI: 16 12 18 11 Performance monitoring interrupts
IWI: 0 0 1 0 IRQ work interrupts
RTR: 3 0 0 0 APIC ICR read retries
RES: 5425 8358 6069 5476 Rescheduling interrupts
CAL: 308 297 340 293 Function call interrupts
TLB: 424 422 432 437 TLB shootdowns
TRM: 0 0 0 0 Thermal event interrupts
THR: 0 0 0 0 Threshold APIC interrupts
MCE: 0 0 0 0 Machine check exceptions
MCP: 2 2 2 2 Machine check polls
ERR: 0
MIS: 0
--
Matt Fleming, Intel Open Source Technology Center
View attachment "dmesg.bad" of type "text/plain" (75094 bytes)
View attachment "dmesg.good" of type "text/plain" (98645 bytes)
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