In 24.04 noble, b44 worked fine after I unloaded the wl module from
broadcom-sta-dkms. I moved a large amount of data with no problems.
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Title:
b
No, "pcie_aspm=off" does not help.
I also tried uninstalling broadcom-sta-dkms. It blacklists the b44
module via /etc/modprobe.d/broadcom-sta-dkms.conf and also
https://wiki.debian.org/wl says that b44 is incompatible with wl. This
did not help either.
My laptop seems fine with just having the b4
Does kernel parameter "pcie_aspm=off" help?
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Title:
b44 Ethernet driver null pointer during initialization
To manage notifications about this bu
In Ubuntu 21.10 with 5.13.0-16-generic kernel, I don't get any dmesg
errors after I "modprobe b44" and Ethernet works initially at reasonable
speed, but the whole system freezes totally after a few minutes. I
suppose this means the b44 driver still doesn't work properly, because I
don't get such fr
Please test latest mainline kernel:
https://kernel.ubuntu.com/~kernel-ppa/mainline/v5.8-rc3/
If mainline kernel doesn't solve the issue please do a kernel bisection.
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I don't see a null pointer message but the b44 driver is still broken in
5.4.0-33-generic on my Dell Inspiron 6400:
[ 3148.539194] ssb: Found chip with id 0x4401, rev 0x02 and package 0x00
[ 3148.599317] b44 :03:00.0: Sonics Silicon Backplane found on PCI device
:03:00.0
[ 3148.599414] b4
Please test latest 20.04 kernel.
** Changed in: linux (Ubuntu)
Status: Confirmed => Incomplete
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Title:
b44 Ethernet driver null pointer d
iommu=soft does not help, and I don't understand why it would help
theoretically when the Core 2 Duo T7400 CPU doesn't have a hardware
IOMMU. The problem seems to be that the 64 MB buffer is allocated beyond
1 GB.
One theoretical good workaround would be to boot up with only 1 GB and
then enable t
@Boris Gjenero, try using the kernel parameter "iommu=soft" instead of
limiting the memory to 1GB. It will force the use of a 64MB swiotlb
bounce buffer to workaround this issue. Tested with Focal Fossa Beta ISO
(Kernel 5.4.0-21-generic) on my Optiplex 320 with 2GB of RAM.
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This problem still exists in Ubuntu Focal Fossa (development branch)
20.04 with linux-image-5.4.0-21-generic. It also exists in linux-image-
unsigned-5.6.2-050602-generic_5.6.2-050602.202004020822_amd64.deb
With linux-image-5.4.0-21-generic I didn't get any error messages after
"insmod b44" in rec
I don't normally use Ethernet on my laptop, and for some reason the b44
module for Ethernet doesn't get loaded normally. So I didn't notice
this. But I'm getting the same problem reported in
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1821564/comments/8
in Ubuntu 19.10 with linux-image-5.3
@Hans P Möller, i've tested with kernel 5.1.0-050100rc3-generic and the
b44 module loaded and worked fine, but it created some others warnings
in the dmesg:
[ 44.045886] b44 :02:09.0: swiotlb buffer is full (sz: 1566 bytes)
[ 44.045906] WARNING: CPU: 1 PID: 565 at kernel/dma/direct.c:43
r
@Boris please test kernel 5.1.0-050100rc3-generic (or above) at least
#1822913 was solved with this kernel
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Title:
b44 Ethernet driver null point
linux-image-
unsigned-4.20.0-042000-generic_4.20.0-042000.201812232030_amd64.deb is
good but linux-image-
unsigned-5.0.0-05rc1-generic_5.0.0-05rc1.201901062130_amd64.deb
is bad. I'm not sure I'll have time for a git bisect.
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I just tested Kernel 4.20.17 an it is good. I will do the bisect but I
don't have much time at this moment
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Title:
b44 Ethernet driver null point
Ok, I failed to find where the regression comes from.
Would it be possible for you to do a kernel bisection?
First, find the last good -rc kernel and the first bad -rc kernel from
http://kernel.ubuntu.com/~kernel-ppa/mainline/
Then,
$ sudo apt build-dep linux
$ git clone git://git.kernel.org/pub
Sorry, I mean bug is not present in 4.18.0-16-generic and present in
5.0.0-7-generic
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Title:
b44 Ethernet driver null pointer during initializati
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