Public bug reported:
With update 1.173.6 of linux-firmware (bionic-updates) a new firmware file was
installed :
/lib/firmware/brcm/brcmfmac4366c-pcie.bin
Package revision 1.173 does not have the 4366c file (it only has the 4366b
file).
Under 16.04 the ASUS PCE-AC88 was wrongly loading a 4366b firmware, and did not
work out of the box.
I followed instructions to retrieve the correct firmware from drivers
available on the manufacturer web site, and I was having no issue.
I upgraded my system to 18.04.2, and wifi worked very well until the
installation of linux-firmware 1.173.6, which came with bionic-updates.
After this update, the remotely operated server dropped the wifi
connection, requiring a local intervention, and had long freezes making
it drop connection and sometimes seem to fail to boot up.
In addition syslog was filled with messages:
brcmfmac: brcmf_msgbuf_alloc_pktid: dma_map_single failed !!
brcmfmac: brcmf_msgbuf_rxbuf_data_post: No PKTID available !!
I also had in kern.log:
[191882.330601] brcmfmac 0000:04:00.0: swiotlb buffer is full (sz: 2048 bytes)
[191882.330603] brcmfmac 0000:04:00.0: DMA: Out of SW-IOMMU space for 2048 bytes
[191882.330605] brcmfmac: brcmf_msgbuf_alloc_pktid: dma_map_single failed !!
[191882.330607] brcmfmac: brcmf_msgbuf_rxbuf_data_post: No PKTID available !!
Both pointing to potentially serious DMA problems.
When I noticed that my firmware had been overwritten, I recovered
another one from ASUS support web site, using the same method I had used
previously. The system and wifi now seem to work correctly.
This computer lacks an IOMMU. The problem might not occur on more modern
hardware equipped with a hardware IOMMU.
More information on the fairly old system (issue might be also hardware
dependent):
computer
description: Desktop Computer
product: P5K-VM (To Be Filled By O.E.M.)
vendor: System manufacturer
version: System Version
serial: [REMOVED]
width: 64 bits
capabilities: smbios-2.4 dmi-2.4 smp vsyscall32
configuration: boot=normal chassis=desktop family=To Be Filled By O.E.M.
sku=To Be Filled By O.E.M. uuid=[REMOVED]
*-core
description: Motherboard
product: P5K-VM
vendor: ASUSTeK Computer INC.
physical id: 0
version: Rev 1.xx
serial: [REMOVED]
slot: To Be Filled By O.E.M.
*-firmware
description: BIOS
vendor: American Megatrends Inc.
physical id: 0
version: 1001
date: 08/07/2008
size: 64KiB
capacity: 960KiB
capabilities: isa pci pnp apm upgrade shadowing escd cdboot
bootselect socketedrom edd int13floppy1200 int13floppy720 int13floppy2880
int5printscreen int9keyboard int14serial int17printer int10video acpi usb
ls120boot zipboot biosbootspecification
*-cpu
description: CPU
product: Intel(R) Core(TM)2 Quad CPU Q9550 @ 2.83GHz
vendor: Intel Corp.
physical id: 4
bus info: cpu@0
version: Intel(R) Core(TM)2 Quad CPU Q9550 @ 2.83GHz
serial: [REMOVED]
slot: LGA775
size: 2453MHz
capacity: 3800MHz
width: 64 bits
clock: 382MHz
capabilities: fpu fpu_exception wp vme de pse tsc msr pae mce cx8
apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht
tm pbe syscall nx x86-64 constant_tsc arch_perfmon pebs bts rep_good nopl cpuid
aperfmperf pni dtes64 monitor ds_cpl vmx smx est tm2 ssse3 cx16 xtpr pdcm
sse4_1 xsave lahf_lm pti tpr_shadow vnmi flexpriority dtherm cpufreq
*-cache:0
description: L1 cache
physical id: 5
slot: L1-Cache
size: 128KiB
capacity: 128KiB
capabilities: internal write-back data
configuration: level=1
*-cache:1
description: L2 cache
physical id: 6
slot: L2-Cache
size: 12MiB
capacity: 12MiB
capabilities: internal write-back instruction
configuration: level=2
*-memory
description: System Memory
physical id: 37
slot: System board or motherboard
size: 8GiB
*-bank:0
description: DIMM DDR2 Synchronous 1872 MHz (0,5 ns)
product: PartNum0
vendor: Manufacturer0
physical id: 0
serial: [REMOVED]
slot: DIMM0
size: 2GiB
width: 64 bits
clock: 1872MHz (0.5ns)
*-bank:1
description: DIMM DDR2 Synchronous 1872 MHz (0,5 ns)
product: PartNum1
vendor: Manufacturer1
physical id: 1
serial: [REMOVED]
slot: DIMM1
size: 2GiB
width: 64 bits
clock: 1872MHz (0.5ns)
*-bank:2
description: DIMM DDR2 Synchronous 1872 MHz (0,5 ns)
product: PartNum2
vendor: Manufacturer2
physical id: 2
serial: [REMOVED]
slot: DIMM2
size: 2GiB
width: 64 bits
clock: 1872MHz (0.5ns)
*-bank:3
description: DIMM DDR2 Synchronous 1872 MHz (0,5 ns)
product: PartNum3
vendor: Manufacturer3
physical id: 3
serial: [REMOVED]
slot: DIMM3
size: 2GiB
width: 64 bits
clock: 1872MHz (0.5ns)
*-pci
description: Host bridge
product: 82G33/G31/P35/P31 Express DRAM Controller
vendor: Intel Corporation
physical id: 100
bus info: pci@0000:00:00.0
version: 02
width: 32 bits
clock: 33MHz
*-pci:0
description: PCI bridge
product: 82G33/G31/P35/P31 Express PCI Express Root Port
vendor: Intel Corporation
physical id: 1
bus info: pci@0000:00:01.0
version: 02
width: 32 bits
clock: 33MHz
capabilities: pci pm msi pciexpress normal_decode bus_master
cap_list
configuration: driver=pcieport
resources: irq:16 ioport:b000(size=4096) memory:fde00000-fdefffff
ioport:cfe00000(size=270532608)
*-display
description: VGA compatible controller
product: Baffin [Radeon RX 460/560D / Pro 450/455/460/555/560]
vendor: Advanced Micro Devices, Inc. [AMD/ATI]
physical id: 0
bus info: pci@0000:01:00.0
version: cf
width: 64 bits
clock: 33MHz
capabilities: pm pciexpress msi vga_controller bus_master
cap_list rom
configuration: driver=amdgpu latency=0
resources: irq:28 memory:d0000000-dfffffff
memory:cfe00000-cfffffff ioport:b000(size=256) memory:fde80000-fdebffff
memory:c0000-dffff
*-multimedia
description: Audio device
product: Advanced Micro Devices, Inc. [AMD/ATI]
vendor: Advanced Micro Devices, Inc. [AMD/ATI]
physical id: 0.1
bus info: pci@0000:01:00.1
version: 00
width: 64 bits
clock: 33MHz
capabilities: pm pciexpress msi bus_master cap_list
configuration: driver=snd_hda_intel latency=0
resources: irq:27 memory:fdefc000-fdefffff
*-usb:0
description: USB controller
product: 82801I (ICH9 Family) USB UHCI Controller #4
vendor: Intel Corporation
physical id: 1a
bus info: pci@0000:00:1a.0
version: 02
width: 32 bits
clock: 33MHz
capabilities: uhci bus_master cap_list
configuration: driver=uhci_hcd latency=0
resources: irq:16 ioport:a800(size=32)
*-usbhost
product: UHCI Host Controller
vendor: Linux 4.15.0-50-generic uhci_hcd
physical id: 1
bus info: usb@3
logical name: usb3
version: 4.15
capabilities: usb-1.10
configuration: driver=hub slots=2 speed=12Mbit/s
*-usb:1
description: USB controller
product: 82801I (ICH9 Family) USB UHCI Controller #5
vendor: Intel Corporation
physical id: 1a.1
bus info: pci@0000:00:1a.1
version: 02
width: 32 bits
clock: 33MHz
capabilities: uhci bus_master cap_list
configuration: driver=uhci_hcd latency=0
resources: irq:21 ioport:a880(size=32)
*-usbhost
product: UHCI Host Controller
vendor: Linux 4.15.0-50-generic uhci_hcd
physical id: 1
bus info: usb@4
logical name: usb4
version: 4.15
capabilities: usb-1.10
configuration: driver=hub slots=2 speed=12Mbit/s
*-usb:2
description: USB controller
product: 82801I (ICH9 Family) USB UHCI Controller #6
vendor: Intel Corporation
physical id: 1a.2
bus info: pci@0000:00:1a.2
version: 02
width: 32 bits
clock: 33MHz
capabilities: uhci bus_master cap_list
configuration: driver=uhci_hcd latency=0
resources: irq:18 ioport:ac00(size=32)
*-usbhost
product: UHCI Host Controller
vendor: Linux 4.15.0-50-generic uhci_hcd
physical id: 1
bus info: usb@5
logical name: usb5
version: 4.15
capabilities: usb-1.10
configuration: driver=hub slots=2 speed=12Mbit/s
*-usb:3
description: USB controller
product: 82801I (ICH9 Family) USB2 EHCI Controller #2
vendor: Intel Corporation
physical id: 1a.7
bus info: pci@0000:00:1a.7
version: 02
width: 32 bits
clock: 33MHz
capabilities: pm debug ehci bus_master cap_list
configuration: driver=ehci-pci latency=0
resources: irq:18 memory:fddffc00-fddfffff
*-usbhost
product: EHCI Host Controller
vendor: Linux 4.15.0-50-generic ehci_hcd
physical id: 1
bus info: usb@1
logical name: usb1
version: 4.15
capabilities: usb-2.00
configuration: driver=hub slots=6 speed=480Mbit/s
*-usb
description: Mass storage device
product: v220w
vendor: HP
physical id: 5
bus info: usb@1:5
logical name: scsi8
version: 11.00
serial: [REMOVED]
capabilities: usb-2.00 scsi emulated scsi-host
configuration: driver=usb-storage maxpower=500mA
speed=480Mbit/s
*-disk
description: SCSI Disk
product: v220w
vendor: hp
physical id: 0.0.0
bus info: scsi@8:0.0.0
logical name: /dev/sdc
version: 1100
serial: [REMOVED]
size: 7674MiB (8046MB)
capabilities: removable
configuration: ansiversion=4 logicalsectorsize=512
sectorsize=512
*-medium
physical id: 0
logical name: /dev/sdc
size: 7674MiB (8046MB)
capabilities: partitioned partitioned:dos
configuration: signature=c3072e18
*-volume:0
description: Linux filesystem partition
vendor: Linux
physical id: 1
logical name: /dev/sdc1
logical name: /boot
version: 1.0
serial: [REMOVED]
size: 3836MiB
capacity: 3836MiB
capabilities: primary bootable ext2 initialized
configuration: filesystem=ext2 label=Boot
lastmountpoint=/boot modified=2019-05-24 16:32:03 mount.fstype=ext2
mount.options=rw,relatime,block_validity,barrier,user_xattr,acl
mounted=2019-05-24 16:32:03 state=mounted
*-volume:1
description: Linux filesystem partition
vendor: Linux
physical id: 2
logical name: /dev/sdc2
version: 1.0
serial: [REMOVED]
size: 3836MiB
capacity: 3837MiB
capabilities: primary ext2 initialized
configuration: filesystem=ext2 label=Boot
lastmountpoint=/boot modified=2019-05-24 16:57:09 mounted=2019-05-24 16:56:27
state=clean
*-multimedia
description: Audio device
product: 82801I (ICH9 Family) HD Audio Controller
vendor: Intel Corporation
physical id: 1b
bus info: pci@0000:00:1b.0
version: 02
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress bus_master cap_list
configuration: driver=snd_hda_intel latency=0
resources: irq:26 memory:fddf8000-fddfbfff
*-pci:1
description: PCI bridge
product: 82801I (ICH9 Family) PCI Express Port 1
vendor: Intel Corporation
physical id: 1c
bus info: pci@0000:00:1c.0
version: 02
width: 32 bits
clock: 33MHz
capabilities: pci pciexpress msi pm normal_decode bus_master
cap_list
configuration: driver=pcieport
resources: irq:17 ioport:1000(size=4096) memory:fe000000-feafffff
ioport:fcc00000(size=4194304)
*-network
description: Wireless interface
product: Broadcom Inc. and subsidiaries
vendor: Broadcom Inc. and subsidiaries
physical id: 0
bus info: pci@0000:04:00.0
logical name: wlp4s0
version: 04
serial: [REMOVED]
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress bus_master cap_list ethernet
physical wireless
configuration: broadcast=yes driver=brcmfmac
driverversion=10.10.122.18 firmware=01-9f64541d ip=[REMOVED] latency=0
multicast=yes wireless=IEEE 802.11
resources: irq:29 memory:feaf8000-feafffff
memory:fe000000-fe7fffff memory:fcc00000-fcffffff
*-pci:2
description: PCI bridge
product: 82801I (ICH9 Family) PCI Express Port 5
vendor: Intel Corporation
physical id: 1c.4
bus info: pci@0000:00:1c.4
version: 02
width: 32 bits
clock: 33MHz
capabilities: pci pciexpress msi pm normal_decode bus_master
cap_list
configuration: driver=pcieport
resources: irq:17 ioport:d000(size=4096) memory:c0000000-c01fffff
ioport:c0200000(size=2097152)
*-ide
description: IDE interface
product: JMB368 IDE controller
vendor: JMicron Technology Corp.
physical id: 0
bus info: pci@0000:03:00.0
version: 00
width: 32 bits
clock: 33MHz
capabilities: ide pm pciexpress
pci_native_mode-only_controller__supports_bus_mastering bus_master cap_list
configuration: driver=pata_jmicron latency=0
resources: irq:16 ioport:dc00(size=8) ioport:d880(size=4)
ioport:d800(size=8) ioport:d480(size=4) ioport:d400(size=16)
*-pci:3
description: PCI bridge
product: 82801I (ICH9 Family) PCI Express Port 6
vendor: Intel Corporation
physical id: 1c.5
bus info: pci@0000:00:1c.5
version: 02
width: 32 bits
clock: 33MHz
capabilities: pci pciexpress msi pm normal_decode bus_master
cap_list
configuration: driver=pcieport
resources: irq:16 ioport:c000(size=4096) memory:fdf00000-fdffffff
ioport:c0400000(size=2097152)
*-network
description: Ethernet interface
product: 88E8056 PCI-E Gigabit Ethernet Controller
vendor: Marvell Technology Group Ltd.
physical id: 0
bus info: pci@0000:02:00.0
logical name: eth0
version: 12
serial: [REMOVED]
capacity: 1Gbit/s
width: 64 bits
clock: 33MHz
capabilities: pm vpd msi pciexpress bus_master cap_list rom
ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt 1000bt-fd
autonegotiation
configuration: autonegotiation=on broadcast=yes driver=sky2
driverversion=1.30 latency=0 link=no multicast=yes port=twisted pair
resources: irq:24 memory:fdffc000-fdffffff
ioport:c800(size=256) memory:fdfc0000-fdfdffff
*-usb:4
description: USB controller
product: 82801I (ICH9 Family) USB UHCI Controller #1
vendor: Intel Corporation
physical id: 1d
bus info: pci@0000:00:1d.0
version: 02
width: 32 bits
clock: 33MHz
capabilities: uhci bus_master cap_list
configuration: driver=uhci_hcd latency=0
resources: irq:23 ioport:a080(size=32)
*-usbhost
product: UHCI Host Controller
vendor: Linux 4.15.0-50-generic uhci_hcd
physical id: 1
bus info: usb@6
logical name: usb6
version: 4.15
capabilities: usb-1.10
configuration: driver=hub slots=2 speed=12Mbit/s
*-usb:5
description: USB controller
product: 82801I (ICH9 Family) USB UHCI Controller #2
vendor: Intel Corporation
physical id: 1d.1
bus info: pci@0000:00:1d.1
version: 02
width: 32 bits
clock: 33MHz
capabilities: uhci bus_master cap_list
configuration: driver=uhci_hcd latency=0
resources: irq:19 ioport:a400(size=32)
*-usbhost
product: UHCI Host Controller
vendor: Linux 4.15.0-50-generic uhci_hcd
physical id: 1
bus info: usb@7
logical name: usb7
version: 4.15
capabilities: usb-1.10
configuration: driver=hub slots=2 speed=12Mbit/s
*-usb:6
description: USB controller
product: 82801I (ICH9 Family) USB UHCI Controller #3
vendor: Intel Corporation
physical id: 1d.2
bus info: pci@0000:00:1d.2
version: 02
width: 32 bits
clock: 33MHz
capabilities: uhci bus_master cap_list
configuration: driver=uhci_hcd latency=0
resources: irq:18 ioport:a480(size=32)
*-usbhost
product: UHCI Host Controller
vendor: Linux 4.15.0-50-generic uhci_hcd
physical id: 1
bus info: usb@8
logical name: usb8
version: 4.15
capabilities: usb-1.10
configuration: driver=hub slots=2 speed=12Mbit/s
*-usb:7
description: USB controller
product: 82801I (ICH9 Family) USB2 EHCI Controller #1
vendor: Intel Corporation
physical id: 1d.7
bus info: pci@0000:00:1d.7
version: 02
width: 32 bits
clock: 33MHz
capabilities: pm debug ehci bus_master cap_list
configuration: driver=ehci-pci latency=0
resources: irq:23 memory:fddff800-fddffbff
*-usbhost
product: EHCI Host Controller
vendor: Linux 4.15.0-50-generic ehci_hcd
physical id: 1
bus info: usb@2
logical name: usb2
version: 4.15
capabilities: usb-2.00
configuration: driver=hub slots=6 speed=480Mbit/s
*-pci:4
description: PCI bridge
product: 82801 PCI Bridge
vendor: Intel Corporation
physical id: 1e
bus info: pci@0000:00:1e.0
version: 92
width: 32 bits
clock: 33MHz
capabilities: pci subtractive_decode bus_master cap_list
resources: ioport:e000(size=4096) memory:feb00000-febfffff
*-firewire
description: FireWire (IEEE 1394)
product: VT6306/7/8 [Fire II(M)] IEEE 1394 OHCI Controller
vendor: VIA Technologies, Inc.
physical id: 2
bus info: pci@0000:05:02.0
version: c0
width: 32 bits
clock: 33MHz
capabilities: pm ohci bus_master cap_list
configuration: driver=firewire_ohci latency=64 maxlatency=32
resources: irq:20 memory:febff800-febfffff ioport:ec00(size=128)
*-isa
description: ISA bridge
product: 82801IB (ICH9) LPC Interface Controller
vendor: Intel Corporation
physical id: 1f
bus info: pci@0000:00:1f.0
version: 02
width: 32 bits
clock: 33MHz
capabilities: isa bus_master cap_list
configuration: driver=lpc_ich latency=0
resources: irq:0
*-storage
description: SATA controller
product: 82801IB (ICH9) 4 port SATA Controller [AHCI mode]
vendor: Intel Corporation
physical id: 1f.2
bus info: pci@0000:00:1f.2
version: 02
width: 32 bits
clock: 66MHz
capabilities: storage msi pm ahci_1.0 bus_master cap_list
configuration: driver=ahci latency=0
resources: irq:25 ioport:9c00(size=8) ioport:9880(size=4)
ioport:9800(size=8) ioport:9480(size=4) ioport:9400(size=32)
memory:fddfe800-fddfefff
*-serial UNCLAIMED
description: SMBus
product: 82801I (ICH9 Family) SMBus Controller
vendor: Intel Corporation
physical id: 1f.3
bus info: pci@0000:00:1f.3
version: 02
width: 64 bits
clock: 33MHz
configuration: latency=0
resources: memory:fddff400-fddff4ff ioport:400(size=32)
*-scsi:0
physical id: 1
logical name: scsi2
capabilities: emulated
*-disk
description: ATA Disk
product: WDC WD10JFCX-68N
vendor: Western Digital
physical id: 0.0.0
bus info: scsi@2:0.0.0
logical name: /dev/sda
version: 0A82
serial: [REMOVED]
size: 931GiB (1TB)
capabilities: partitioned partitioned:dos
configuration: ansiversion=5 logicalsectorsize=512 sectorsize=4096
signature=000b68ce
*-volume:0
description: Non-FS data partition
physical id: 1
bus info: scsi@2:0.0.0,1
logical name: /dev/sda1
capacity: 931GiB
capabilities: primary nofs
*-volume:1
description: Linux filesystem partition
vendor: Linux
physical id: 2
bus info: scsi@2:0.0.0,2
logical name: /dev/sda2
logical name: /mnt/e4629593-b2f9-4ccb-aac8-c4111be5f95f
version: 1.0
serial: [REMOVED]
size: 728KiB
capacity: 728KiB
capabilities: primary extended_attributes ext2 initialized
configuration: filesystem=ext2 modified=2019-05-24 15:46:03
mount.fstype=ext2
mount.options=rw,nosuid,nodev,relatime,block_validity,barrier,user_xattr,acl,stripe=4
mounted=2019-05-24 15:46:03 state=mounted
*-scsi:1
physical id: 2
logical name: scsi3
capabilities: emulated
*-disk
description: ATA Disk
product: WDC WD10JFCX-68N
vendor: Western Digital
physical id: 0.0.0
bus info: scsi@3:0.0.0
logical name: /dev/sdb
version: 0A82
serial: [REMOVED]
size: 931GiB (1TB)
capabilities: gpt-1.00 partitioned partitioned:gpt
configuration: ansiversion=5
guid=e3e52524-6e92-489c-bf74-af642df88e0f logicalsectorsize=512 sectorsize=4096
*-volume:0
description: EFI partition
physical id: 1
bus info: scsi@3:0.0.0,1
logical name: /dev/sdb1
serial: [REMOVED]
capacity: 931GiB
configuration: name=Linux filesystem
*-volume:1
description: EFI partition
physical id: 2
bus info: scsi@3:0.0.0,2
logical name: /dev/sdb2
logical name: /boot/md1_bitmap
serial: [REMOVED]
capacity: 711KiB
configuration: mount.fstype=ext2
mount.options=rw,nosuid,nodev,relatime,block_validity,barrier,user_xattr,acl,stripe=4
name=Linux filesystem state=mounted
*-scsi:2
physical id: 3
logical name: scsi6
capabilities: emulated
*-disk
description: ATA Disk
product: WDC WD10JFCX-68N
vendor: Western Digital
physical id: 0.0.0
bus info: scsi@6:0.0.0
logical name: /dev/sdd
version: 0A82
serial: [REMOVED]
size: 931GiB (1TB)
capabilities: partitioned partitioned:dos
configuration: ansiversion=5 logicalsectorsize=512 sectorsize=4096
signature=000b68ce
*-volume:0
description: Non-FS data partition
physical id: 1
bus info: scsi@6:0.0.0,1
logical name: /dev/sdd1
capacity: 931GiB
capabilities: primary nofs
*-volume:1
description: Linux filesystem partition
vendor: Linux
physical id: 2
bus info: scsi@6:0.0.0,2
logical name: /dev/sdd2
version: 1.0
serial: [REMOVED]
size: 728KiB
capacity: 728KiB
capabilities: primary extended_attributes large_files
huge_files dir_nlink 64bit extents ext2 initialized
configuration: filesystem=ext2 label=tiny3
lastmountpoint=/boot/md1_bitmap modified=2019-05-24 16:31:04 mounted=2019-05-24
15:46:08 state=clean
*-scsi:3
physical id: 5
logical name: scsi7
capabilities: emulated
*-disk
description: ATA Disk
product: WDC WD10JFCX-68N
vendor: Western Digital
physical id: 0.0.0
bus info: scsi@7:0.0.0
logical name: /dev/sde
version: 0A82
serial: [REMOVED]
size: 931GiB (1TB)
capabilities: partitioned partitioned:dos
configuration: ansiversion=5 logicalsectorsize=512 sectorsize=4096
signature=00011bcb
*-volume:0
description: Non-FS data partition
physical id: 1
bus info: scsi@7:0.0.0,1
logical name: /dev/sde1
capacity: 931GiB
capabilities: primary nofs
*-volume:1
description: Linux filesystem partition
vendor: Linux
physical id: 2
bus info: scsi@7:0.0.0,2
logical name: /dev/sde2
version: 1.0
serial: [REMOVED]
size: 728KiB
capacity: 728KiB
capabilities: primary extended_attributes ext2 initialized
configuration: filesystem=ext2 modified=2019-01-02 17:32:44
mounted=2019-01-02 17:30:20 state=clean
** Affects: linux-firmware (Ubuntu)
Importance: Undecided
Status: New
** Tags: brcm firmware iommu
** Attachment added: "Apparently working firmware, freshly extracted from ASUS'
driver"
https://bugs.launchpad.net/bugs/1830396/+attachment/5266285/+files/brcmfmac4366c-pcie.bin
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https://bugs.launchpad.net/bugs/1830396
Title:
Broadcomm PCE-AC88 wifi drops out - system freezes
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