Bug#927078: linux-image-4.19.0-4-amd64: B43 wireless forced into non-working PIO mode with latest kernel

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Bug#927078: linux-image-4.19.0-4-amd64: B43 wireless forced into non-working PIO mode with latest kernel

Stuart Read
Package: src:linux
Version: 4.19.28-2
Severity: normal

Dear Maintainer,

   * What led up to the situation?

Upgraded to latest set of package in Testing. After this my B43 wireless card
failed to connect. The driver reported a warning:

b43-phy0 warning: Forced PIO by use_pio module parameter. This should not be needed and will result in lower performance.

   * What exactly did you do (or not do) that was effective (or
     ineffective)?

Booting with kernel parameter "intel-iommu=off" solved the problem.


-- Package-specific info:
** Version:
Linux version 4.19.0-4-amd64 ([hidden email]) (gcc version 8.3.0 (Debian 8.3.0-2)) #1 SMP Debian 4.19.28-2 (2019-03-15)

** Command line:
BOOT_IMAGE=/root/boot/vmlinuz-4.19.0-4-amd64 root=UUID=9febe37f-1974-414a-97cd-5e3249c39291 ro rootflags=subvol=root quiet

** Not tainted

** Kernel log:

** Model information
[    6.711836] b43 ssb0:0: firmware: direct-loading firmware b43/ucode16_mimo.fw
[    6.715796] b43 ssb0:0: firmware: direct-loading firmware b43/n0initvals16.fw
[    6.717533] b43 ssb0:0: firmware: direct-loading firmware b43/n0bsinitvals16.fw
[    6.742872] Bluetooth: hci0: BCM: chip id 254 build 0522
[    6.745796] Bluetooth: hci0: BCM: product 05ac:8213
[    6.778263] Bluetooth: hci0: BCM: features 0x00
[    6.795868] Bluetooth: hci0: isbjorn
[    6.824440] applesmc: key=271 fan=1 temp=14 index=14 acc=1 lux=2 kbd=1
[    6.831783] ieee80211 phy0: Selected rate control algorithm 'minstrel_ht'
[    6.858783] ACPI Warning: \_SB.PCI0.IXVE.IGPU._DSM: Argument #4 type mismatch - Found [Buffer], ACPI requires [Package] (20180810/nsarguments-66)
[    6.858810] ACPI: \_SB_.PCI0.IXVE.IGPU: failed to evaluate _DSM
[    6.858950] nouveau 0000:02:00.0: enabling device (0002 -> 0003)
[    6.859211] PCI Interrupt Link [LGPU] enabled at IRQ 20
[    6.859396] checking generic (c0010000 640000) vs hw (c0000000 10000000)
[    6.859397] fb: switching to nouveaufb from EFI VGA
[    6.859453] Console: switching to colour dummy device 80x25
[    6.871615] Adding 14679836k swap on /dev/sda4.  Priority:-2 extents:1 across:14679836k SSFS
[    6.878926] nouveau 0000:02:00.0: NVIDIA MCP79/MCP7A (0ac180b1)
[    6.907803] pstore: Registered efi as persistent store backend
[    6.947520] nouveau 0000:02:00.0: bios: version 62.79.40.00.01
[    6.950279] input: applesmc as /devices/platform/applesmc.768/input/input9
[    6.968848] applesmc applesmc.768: hwmon_device_register() is deprecated. Please convert the driver to use hwmon_device_register_with_info().
[    6.979148] nouveau 0000:02:00.0: fb: 256 MiB stolen system memory
[    7.016102] snd_hda_codec_realtek hdaudioC0D0: ALC889A: SKU not ready 0x400000f0
[    7.102992] audit: type=1400 audit(1555273331.408:2): apparmor="STATUS" operation="profile_load" profile="unconfined" name="libreoffice-oopslash" pid=449 comm="apparmor_parser"
[    7.104451] [TTM] Zone  kernel: Available graphics memory: 3954374 kiB
[    7.104453] [TTM] Zone   dma32: Available graphics memory: 2097152 kiB
[    7.104454] [TTM] Initializing pool allocator
[    7.104460] [TTM] Initializing DMA pool allocator
[    7.104489] nouveau 0000:02:00.0: DRM: VRAM: 256 MiB
[    7.104491] nouveau 0000:02:00.0: DRM: GART: 1048576 MiB
[    7.104496] nouveau 0000:02:00.0: DRM: TMDS table version 2.0
[    7.104499] nouveau 0000:02:00.0: DRM: DCB version 4.0
[    7.104502] nouveau 0000:02:00.0: DRM: DCB outp 00: 01000123 00010014
[    7.104505] nouveau 0000:02:00.0: DRM: DCB outp 01: 02021232 00000010
[    7.104508] nouveau 0000:02:00.0: DRM: DCB outp 02: 02021286 0f220010
[    7.104510] nouveau 0000:02:00.0: DRM: DCB conn 00: 00000040
[    7.104512] nouveau 0000:02:00.0: DRM: DCB conn 01: 0000a146
[    7.106141] [drm] Supports vblank timestamp caching Rev 2 (21.10.2013).
[    7.106142] [drm] Driver supports precise vblank timestamp query.
[    7.108267] audit: type=1400 audit(1555273331.416:3): apparmor="STATUS" operation="profile_load" profile="unconfined" name="libreoffice-senddoc" pid=451 comm="apparmor_parser"
[    7.109585] nouveau 0000:02:00.0: DRM: MM: using M2MF for buffer copies
[    7.115991] audit: type=1400 audit(1555273331.424:4): apparmor="STATUS" operation="profile_load" profile="unconfined" name="/usr/bin/man" pid=448 comm="apparmor_parser"
[    7.115997] audit: type=1400 audit(1555273331.424:5): apparmor="STATUS" operation="profile_load" profile="unconfined" name="man_filter" pid=448 comm="apparmor_parser"
[    7.115999] audit: type=1400 audit(1555273331.424:6): apparmor="STATUS" operation="profile_load" profile="unconfined" name="man_groff" pid=448 comm="apparmor_parser"
[    7.123196] audit: type=1400 audit(1555273331.432:7): apparmor="STATUS" operation="profile_load" profile="unconfined" name="libreoffice-xpdfimport" pid=454 comm="apparmor_parser"
[    7.139098] audit: type=1400 audit(1555273331.448:8): apparmor="STATUS" operation="profile_load" profile="unconfined" name="libreoffice-soffice" pid=453 comm="apparmor_parser"
[    7.139103] audit: type=1400 audit(1555273331.448:9): apparmor="STATUS" operation="profile_load" profile="unconfined" name="libreoffice-soffice//gpg" pid=453 comm="apparmor_parser"
[    7.148422] audit: type=1400 audit(1555273331.456:10): apparmor="STATUS" operation="profile_load" profile="unconfined" name="/usr/lib/telepathy/mission-control-5" pid=455 comm="apparmor_parser"
[    7.148427] audit: type=1400 audit(1555273331.456:11): apparmor="STATUS" operation="profile_load" profile="unconfined" name="/usr/lib/telepathy/telepathy-*" pid=455 comm="apparmor_parser"
[    7.162665] snd_hda_codec_realtek hdaudioC0D0: autoconfig for ALC889A: line_outs=2 (0x18/0x1a/0x0/0x0/0x0) type:speaker
[    7.162669] snd_hda_codec_realtek hdaudioC0D0:    speaker_outs=0 (0x0/0x0/0x0/0x0/0x0)
[    7.162672] snd_hda_codec_realtek hdaudioC0D0:    hp_outs=1 (0x14/0x0/0x0/0x0/0x0)
[    7.162673] snd_hda_codec_realtek hdaudioC0D0:    mono: mono_out=0x0
[    7.162676] snd_hda_codec_realtek hdaudioC0D0:    dig-out=0x1e/0x0
[    7.162677] snd_hda_codec_realtek hdaudioC0D0:    inputs:
[    7.162680] snd_hda_codec_realtek hdaudioC0D0:      Internal Mic=0x19
[    7.162683] snd_hda_codec_realtek hdaudioC0D0:      Mic=0x1b
[    7.162685] snd_hda_codec_realtek hdaudioC0D0:      Line=0x15
[    7.162687] snd_hda_codec_realtek hdaudioC0D0:    dig-in=0x1f
[    7.202957] nouveau 0000:02:00.0: DRM: allocated 1280x800 fb: 0x50000, bo (____ptrval____)
[    7.204086] fbcon: nouveaufb (fb0) is primary device
[    7.228579] Console: switching to colour frame buffer device 160x50
[    7.229403] nouveau 0000:02:00.0: fb0: nouveaufb frame buffer device
[    7.239126] [drm] Initialized nouveau 1.3.1 20120801 for 0000:02:00.0 on minor 0
[    7.532276] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
[    7.532278] Bluetooth: BNEP filters: protocol multicast
[    7.532284] Bluetooth: BNEP socket layer initialized
[    8.002116] IPv6: ADDRCONF(NETDEV_UP): enp0s10: link is not ready
[    8.004052] forcedeth 0000:00:0a.0 enp0s10: MSI enabled
[    8.004277] forcedeth 0000:00:0a.0 enp0s10: no link during initialization
[    8.004648] IPv6: ADDRCONF(NETDEV_UP): enp0s10: link is not ready
[    8.020866] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
[    8.230850] b43-phy0: Loading firmware version 666.2 (2011-02-23 01:15:07)
[    8.727151] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
[    9.010875] b43-phy0: Loading firmware version 666.2 (2011-02-23 01:15:07)
[    9.466917] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
[    9.691229] input: Mouseemu virtual keyboard as /devices/virtual/input/input11
[    9.692232] input: Mouseemu virtual mouse as /devices/virtual/input/input12
[   10.368603] Bluetooth: RFCOMM TTY layer initialized
[   10.368611] Bluetooth: RFCOMM socket layer initialized
[   10.368618] Bluetooth: RFCOMM ver 1.11
[   10.456084] input: HDA Digital PCBeep as /devices/pci0000:00/0000:00:08.0/sound/card0/input10
[   10.467318] input: HDA NVidia Mic as /devices/pci0000:00/0000:00:08.0/sound/card0/input13
[   10.468920] input: HDA NVidia Line as /devices/pci0000:00/0000:00:08.0/sound/card0/input14
[   10.469005] input: HDA NVidia Headphone as /devices/pci0000:00/0000:00:08.0/sound/card0/input15
[   15.971883] random: crng init done
[   15.971887] random: 7 urandom warning(s) missed due to ratelimiting
[   15.992062] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
[   26.111161] fuse init (API version 7.27)
[   26.662948] b43-phy0: Loading firmware version 666.2 (2011-02-23 01:15:07)
[   27.135008] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
[   30.308547] rfkill: input handler disabled
[   37.512574] wlan0: authenticate with 82:2a:a8:88:b1:69
[   37.831007] wlan0: send auth to 82:2a:a8:88:b1:69 (try 1/3)
[   37.834887] wlan0: authenticated
[   37.842669] wlan0: associate with 82:2a:a8:88:b1:69 (try 1/3)
[   37.847130] wlan0: RX AssocResp from 82:2a:a8:88:b1:69 (capab=0x411 status=0 aid=4)
[   37.847349] wlan0: associated
[   37.980573] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
sys_vendor: Apple Inc.
product_name: MacBook5,1
product_version: 1.0
chassis_vendor: Apple Inc.
chassis_version: Mac-F42D89C8
bios_vendor: Apple Inc.
bios_version:     MB51.88Z.007D.B03.0904271443
board_vendor: Apple Inc.
board_name: Mac-F42D89C8
board_version: Proto

** Loaded modules:
ctr
ccm
fuse
rfcomm
bnep
uinput
binfmt_misc
snd_hda_codec_realtek
snd_hda_codec_generic
efi_pstore
arc4
nouveau
btusb
btrtl
btbcm
btintel
b43
bluetooth
bcma
mac80211
jitterentropy_rng
mxm_wmi
wmi
video
joydev
ttm
drbg
coretemp
evdev
kvm_intel
ansi_cprng
drm_kms_helper
snd_hda_intel
cfg80211
applesmc
snd_hda_codec
kvm
uvcvideo
ecdh_generic
crc16
input_polldev
videobuf2_vmalloc
videobuf2_memops
drm
snd_hda_core
videobuf2_v4l2
videobuf2_common
snd_hwdep
i2c_algo_bit
irqbypass
efivars
pcspkr
rfkill
snd_pcm
rng_core
videodev
hid_appleir
snd_timer
media
hid_apple
hid_generic
sg
snd
bcm5974
soundcore
sbs
nv_tco
acpi_als
kfifo_buf
sbshc
industrialio
pcc_cpufreq
ac
acpi_cpufreq
button
apple_bl
parport_pc
ppdev
lp
parport
efivarfs
ip_tables
x_tables
autofs4
usbhid
hid
btrfs
xor
zstd_decompress
zstd_compress
xxhash
raid6_pq
libcrc32c
crc32c_generic
sr_mod
cdrom
sd_mod
ahci
ssb
libahci
ohci_pci
libata
mmc_core
scsi_mod
pcmcia
pcmcia_core
forcedeth
ehci_pci
ohci_hcd
ehci_hcd
usbcore
usb_common
i2c_nforce2

** Network interface configuration:

source /etc/network/interfaces.d/*

auto lo
iface lo inet loopback

** Network status:
*** IP interfaces and addresses:
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
       valid_lft forever preferred_lft forever
    inet6 ::1/128 scope host
       valid_lft forever preferred_lft forever
2: enp0s10: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc pfifo_fast state DOWN group default qlen 1000
    link/ether 00:23:df:85:eb:16 brd ff:ff:ff:ff:ff:ff
3: wlan0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP group default qlen 1000
    link/ether 00:25:00:41:9a:30 brd ff:ff:ff:ff:ff:ff
    inet 172.16.1.105/24 brd 172.16.1.255 scope global dynamic noprefixroute wlan0
       valid_lft 85803sec preferred_lft 85803sec
    inet6 fe80::2ca0:b167:3ae:f321/64 scope link noprefixroute
       valid_lft forever preferred_lft forever

*** Device statistics:
Inter-|   Receive                                                |  Transmit
 face |bytes    packets errs drop fifo frame compressed multicast|bytes    packets errs drop fifo colls carrier compressed
enp0s10:       0       0    0    0    0     0          0         0        0       0    0    0    0     0       0          0
 wlan0: 5412869    5194    0    0    0     0          0         0   280428    2453    0    0    0     0       0          0
    lo:   15300     196    0    0    0     0          0         0    15300     196    0    0    0     0       0          0


** PCI devices:
00:00.0 Host bridge [0600]: NVIDIA Corporation MCP79 Host Bridge [10de:0a82] (rev b1)
        Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
        Status: Cap- 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
        Latency: 0

00:00.1 RAM memory [0500]: NVIDIA Corporation MCP79 Memory Controller [10de:0a88] (rev b1)
        Control: I/O- Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
        Status: Cap- 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
        Latency: 0

00:03.0 ISA bridge [0601]: NVIDIA Corporation MCP79 LPC Bridge [10de:0aae] (rev b2)
        Subsystem: NVIDIA Corporation Apple iMac 9,1 [10de:cb79]
        Control: I/O+ Mem+ BusMaster+ SpecCycle+ MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
        Status: Cap- 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
        Latency: 0
        Region 0: I/O ports at 2000 [size=256]

00:03.1 RAM memory [0500]: NVIDIA Corporation MCP79 Memory Controller [10de:0aa4] (rev b1)
        Control: I/O- Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
        Status: Cap- 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-

00:03.2 SMBus [0c05]: NVIDIA Corporation MCP79 SMBus [10de:0aa2] (rev b1)
        Subsystem: NVIDIA Corporation Apple iMac 9,1 [10de:cb79]
        Control: I/O+ Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
        Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
        Interrupt: pin A routed to IRQ 0
        Region 0: I/O ports at 2180 [size=64]
        Region 4: I/O ports at 2140 [size=64]
        Region 5: I/O ports at 2100 [size=64]
        Capabilities: <access denied>
        Kernel driver in use: nForce2_smbus
        Kernel modules: i2c_nforce2, nv_tco

00:03.3 RAM memory [0500]: NVIDIA Corporation MCP79 Memory Controller [10de:0a89] (rev b1)
        Control: I/O- Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
        Status: Cap- 66MHz+ UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-

00:03.4 RAM memory [0500]: NVIDIA Corporation MCP79 Memory Controller [10de:0a98] (rev b1)
        Subsystem: NVIDIA Corporation iMac 9,1 [10de:cb79]
        Control: I/O- Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
        Status: Cap- 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-

00:03.5 Co-processor [0b40]: NVIDIA Corporation MCP79 Co-processor [10de:0aa3] (rev b1)
        Subsystem: NVIDIA Corporation Apple iMac 9,1 [10de:cb79]
        Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
        Status: Cap- 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
        Latency: 0 (750ns min, 250ns max)
        Interrupt: pin B routed to IRQ 0
        Region 0: Memory at d3300000 (32-bit, non-prefetchable) [size=512K]

00:04.0 USB controller [0c03]: NVIDIA Corporation MCP79 OHCI USB 1.1 Controller [10de:0aa5] (rev b1) (prog-if 10 [OHCI])
        Subsystem: NVIDIA Corporation Apple iMac 9,1 [10de:cb79]
        Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
        Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
        Latency: 0 (750ns min, 250ns max)
        Interrupt: pin A routed to IRQ 20
        Region 0: Memory at d3388000 (32-bit, non-prefetchable) [size=4K]
        Capabilities: <access denied>
        Kernel driver in use: ohci-pci
        Kernel modules: ohci_pci

00:04.1 USB controller [0c03]: NVIDIA Corporation MCP79 EHCI USB 2.0 Controller [10de:0aa6] (rev b1) (prog-if 20 [EHCI])
        Subsystem: NVIDIA Corporation Apple iMac 9,1 [10de:cb79]
        Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
        Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
        Latency: 0 (750ns min, 250ns max)
        Interrupt: pin B routed to IRQ 17
        Region 0: Memory at d3389200 (32-bit, non-prefetchable) [size=256]
        Capabilities: <access denied>
        Kernel driver in use: ehci-pci
        Kernel modules: ehci_pci

00:06.0 USB controller [0c03]: NVIDIA Corporation MCP79 OHCI USB 1.1 Controller [10de:0aa7] (rev b1) (prog-if 10 [OHCI])
        Subsystem: NVIDIA Corporation Apple iMac 9,1 [10de:cb79]
        Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
        Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
        Latency: 0 (750ns min, 250ns max)
        Interrupt: pin A routed to IRQ 22
        Region 0: Memory at d3387000 (32-bit, non-prefetchable) [size=4K]
        Capabilities: <access denied>
        Kernel driver in use: ohci-pci
        Kernel modules: ohci_pci

00:06.1 USB controller [0c03]: NVIDIA Corporation MCP79 EHCI USB 2.0 Controller [10de:0aa9] (rev b1) (prog-if 20 [EHCI])
        Subsystem: NVIDIA Corporation Apple iMac 9,1 [10de:cb79]
        Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
        Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
        Latency: 0 (750ns min, 250ns max)
        Interrupt: pin B routed to IRQ 22
        Region 0: Memory at d3389100 (32-bit, non-prefetchable) [size=256]
        Capabilities: <access denied>
        Kernel driver in use: ehci-pci
        Kernel modules: ehci_pci

00:08.0 Audio device [0403]: NVIDIA Corporation MCP79 High Definition Audio [10de:0ac0] (rev b1)
        Subsystem: NVIDIA Corporation Apple iMac 9,1 [10de:cb79]
        Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
        Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
        Latency: 0 (500ns min, 1250ns max)
        Interrupt: pin A routed to IRQ 18
        Region 0: Memory at d3380000 (32-bit, non-prefetchable) [size=16K]
        Capabilities: <access denied>
        Kernel driver in use: snd_hda_intel
        Kernel modules: snd_hda_intel

00:09.0 PCI bridge [0604]: NVIDIA Corporation MCP79 PCI Bridge [10de:0aab] (rev b1) (prog-if 01 [Subtractive decode])
        Control: I/O- Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
        Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
        Bus: primary=00, secondary=01, subordinate=01, sec-latency=0
        Memory behind bridge: d3200000-d32fffff
        Secondary status: 66MHz- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort+ <SERR- <PERR-
        BridgeCtl: Parity- SERR- NoISA- VGA- MAbort- >Reset- FastB2B-
                PriDiscTmr- SecDiscTmr+ DiscTmrStat- DiscTmrSERREn-
        Capabilities: <access denied>

00:0a.0 Ethernet controller [0200]: NVIDIA Corporation MCP79 Ethernet [10de:0ab0] (rev b1)
        Subsystem: NVIDIA Corporation Apple iMac 9,1 [10de:cb79]
        Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
        Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
        Latency: 0 (250ns min, 5000ns max)
        Interrupt: pin A routed to IRQ 26
        Region 0: Memory at d3386000 (32-bit, non-prefetchable) [size=4K]
        Region 1: I/O ports at 21e0 [size=8]
        Region 2: Memory at d3389000 (32-bit, non-prefetchable) [size=256]
        Region 3: Memory at d3389300 (32-bit, non-prefetchable) [size=16]
        Capabilities: <access denied>
        Kernel driver in use: forcedeth
        Kernel modules: forcedeth

00:0b.0 SATA controller [0106]: NVIDIA Corporation MCP79 AHCI Controller [10de:0ab9] (rev b1) (prog-if 01 [AHCI 1.0])
        Subsystem: NVIDIA Corporation Apple iMac 9,1 [10de:cb79]
        Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
        Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
        Latency: 0 (750ns min, 250ns max)
        Interrupt: pin A routed to IRQ 24
        Region 0: I/O ports at 21d8 [size=8]
        Region 1: I/O ports at 21ec [size=4]
        Region 2: I/O ports at 21d0 [size=8]
        Region 3: I/O ports at 21e8 [size=4]
        Region 4: I/O ports at 21c0 [size=16]
        Region 5: Memory at d3384000 (32-bit, non-prefetchable) [size=8K]
        Capabilities: <access denied>
        Kernel driver in use: ahci
        Kernel modules: ahci

00:10.0 PCI bridge [0604]: NVIDIA Corporation MCP79 PCI Express Bridge [10de:0aa0] (rev b1) (prog-if 00 [Normal decode])
        Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
        Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
        Latency: 0, Cache Line Size: 256 bytes
        Bus: primary=00, secondary=02, subordinate=02, sec-latency=0
        I/O behind bridge: 00001000-00001fff
        Memory behind bridge: d2000000-d30fffff
        Prefetchable memory behind bridge: 00000000c0000000-00000000d1ffffff
        Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort+ <SERR- <PERR-
        BridgeCtl: Parity- SERR- NoISA- VGA- MAbort- >Reset- FastB2B-
                PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
        Capabilities: <access denied>

00:15.0 PCI bridge [0604]: NVIDIA Corporation MCP79 PCI Express Bridge [10de:0ac6] (rev b1) (prog-if 00 [Normal decode])
        Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
        Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
        Latency: 0, Cache Line Size: 256 bytes
        Interrupt: pin A routed to IRQ 20
        Bus: primary=00, secondary=03, subordinate=03, sec-latency=0
        Memory behind bridge: d3100000-d31fffff
        Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- <SERR- <PERR-
        BridgeCtl: Parity- SERR- NoISA- VGA- MAbort- >Reset- FastB2B-
                PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
        Capabilities: <access denied>
        Kernel driver in use: pcieport

02:00.0 VGA compatible controller [0300]: NVIDIA Corporation C79 [GeForce 9400M] [10de:0863] (rev b1) (prog-if 00 [VGA controller])
        Subsystem: Apple Inc. MacBook5,1 [106b:00aa]
        Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
        Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
        Latency: 0, Cache Line Size: 256 bytes
        Interrupt: pin A routed to IRQ 25
        Region 0: Memory at d2000000 (32-bit, non-prefetchable) [size=16M]
        Region 1: Memory at c0000000 (64-bit, prefetchable) [size=256M]
        Region 3: Memory at d0000000 (64-bit, prefetchable) [size=32M]
        Region 5: I/O ports at 1000 [size=128]
        Expansion ROM at d3000000 [disabled] [size=128K]
        Capabilities: <access denied>
        Kernel driver in use: nouveau
        Kernel modules: nouveau

03:00.0 Network controller [0280]: Broadcom Limited BCM4322 802.11a/b/g/n Wireless LAN Controller [14e4:432b] (rev 01)
        Subsystem: Apple Inc. AirPort Extreme [106b:008d]
        Physical Slot: 3
        Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
        Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
        Latency: 0, Cache Line Size: 256 bytes
        Interrupt: pin A routed to IRQ 20
        Region 0: Memory at d3100000 (64-bit, non-prefetchable) [size=16K]
        Capabilities: <access denied>
        Kernel driver in use: b43-pci-bridge
        Kernel modules: ssb


** USB devices:
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 004 Device 003: ID 05ac:8213 Apple, Inc. Bluetooth Host Controller
Bus 004 Device 002: ID 0a5c:4500 Broadcom Corp. BCM2046B1 USB 2.0 Hub (part of BCM2046 Bluetooth)
Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 001 Device 002: ID 05ac:8507 Apple, Inc. Built-in iSight
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 003 Device 003: ID 05ac:0236 Apple, Inc. Internal Keyboard/Trackpad (ANSI)
Bus 003 Device 002: ID 05ac:8242 Apple, Inc. Built-in IR Receiver
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub


-- System Information:
Debian Release: buster/sid
  APT prefers testing
  APT policy: (500, 'testing')
Architecture: amd64 (x86_64)

Kernel: Linux 4.19.0-4-amd64 (SMP w/2 CPU cores)
Locale: LANG=en_CA.UTF-8, LC_CTYPE=en_CA.UTF-8 (charmap=UTF-8), LANGUAGE=en_CA:en (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

Versions of packages linux-image-4.19.0-4-amd64 depends on:
ii  initramfs-tools [linux-initramfs-tool]  0.133
ii  kmod                                    26-1
ii  linux-base                              4.6

Versions of packages linux-image-4.19.0-4-amd64 recommends:
ii  apparmor             2.13.2-10
ii  firmware-linux-free  3.4
ii  irqbalance           1.5.0-3

Versions of packages linux-image-4.19.0-4-amd64 suggests:
pn  debian-kernel-handbook  <none>
ii  grub-efi-amd64          2.02+dfsg1-16
pn  linux-doc-4.19          <none>

Versions of packages linux-image-4.19.0-4-amd64 is related to:
pn  firmware-amd-graphics     <none>
pn  firmware-atheros          <none>
pn  firmware-bnx2             <none>
pn  firmware-bnx2x            <none>
pn  firmware-brcm80211        <none>
pn  firmware-cavium           <none>
pn  firmware-intel-sound      <none>
pn  firmware-intelwimax       <none>
pn  firmware-ipw2x00          <none>
pn  firmware-ivtv             <none>
pn  firmware-iwlwifi          <none>
pn  firmware-libertas         <none>
pn  firmware-linux-nonfree    <none>
pn  firmware-misc-nonfree     <none>
pn  firmware-myricom          <none>
pn  firmware-netxen           <none>
pn  firmware-qlogic           <none>
pn  firmware-realtek          <none>
pn  firmware-samsung          <none>
pn  firmware-siano            <none>
pn  firmware-ti-connectivity  <none>
pn  xen-hypervisor            <none>

-- no debconf information