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kern/49663: iwm(4) error with PCI_PRODUCT_INTEL_WIFI_LINK_7260_1

>Number:         49663
>Category:       kern
>Synopsis:       iwm(4) error with PCI_PRODUCT_INTEL_WIFI_LINK_7260_1
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    kern-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Sat Feb 14 01:00:00 +0000 2015
>Originator:     Ryo ONODERA
>Release:        NetBSD 7.99.4
System: NetBSD 7.99.4 NetBSD 7.99.4 (DTRACE7) #5: Sat Feb 14 09:49:33 JST 2015 amd64
Architecture: x86_64
Machine: amd64
My 7260, PCI_PRODUCT_INTEL_WIFI_LINK_7260_1, device has error with iwm(4)
in current.

Following is iwm(3) related parts of dmesg with IWM_DEBUG.

pci1 at ppb0 bus 1
pci1: i/o space, memory space enabled, rd/line, wr/inv ok
iwm0 at pci1 dev 0 function 0: vendor 8086 product 08b1 (rev. 0xbb)
iwm0: interrupting at ioapic0 pin 16
iwm0: firmware=iwlwifi-7260-9.ucode
iwm apm start
iwm apm start
Radio type=0x0-0x2-0x1
loading ring 0 descriptors (0xffff80008ee9a000) at ca3920
loading ring 1 descriptors (0xffff80008efd4000) at ca4cc0
loading ring 2 descriptors (0xffff80008f10e000) at ca6060
loading ring 3 descriptors (0xffff80008f248000) at caa8f0
loading ring 4 descriptors (0xffff80008f382000) at cabc90
loading ring 5 descriptors (0xffff80008f4bc000) at cad030
loading ring 6 descriptors (0xffff80008f5f6000) at cae3d0
loading ring 7 descriptors (0xffff80008f730000) at caf770
loading ring 8 descriptors (0xffff80008f86a000) at cb0b10
loading ring 9 descriptors (0xffff80008f9a4000) at cb1eb0
loading ring 10 descriptors (0xffff80008fade000) at cb3250
loading ring 11 descriptors (0xffff80008faee000) at cb3350
loading ring 12 descriptors (0xffff80008fafe000) at cb3450
loading ring 13 descriptors (0xffff80008fb0e000) at cb3550
loading ring 14 descriptors (0xffff80008fb1e000) at cb3650
loading ring 15 descriptors (0xffff80008fb2e000) at cb3750
loading ring 16 descriptors (0xffff80008fb3e000) at cb3850
loading ring 17 descriptors (0xffff80008fb4e000) at cb3950
loading ring 18 descriptors (0xffff80008fb5e000) at cb3a50
loading ring 19 descriptors (0xffff80008fb6e000) at cb3b50
shadow registers enabled
LOAD FIRMWARE type 0 offset 8388608 len 81920
wsdisplay0: screen 1 added (default, vt100 emulation)
wsdisplay0: screen 2 added (default, vt100 emulation)
wsdisplay0: screen 3 added (default, vt100 emulation)
wsdisplay0: screen 4 added (default, vt100 emulation)
iwm_firmware_load_chunk() chunk 0 of 3 returned error 35
iwm apm stop
See above.
I have no idea.


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