[Expired for linux (Ubuntu) because there has been no activity for 60
days.]
** Changed in: linux (Ubuntu)
Status: Incomplete => Expired
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Yes that's correct.
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https://bugs.launchpad.net/bugs/1880835
Title:
pulse audio hangs in kernel call
Status in linux package in Ubuntu:
Incomplete
Bug description:
Just to be sure that I understood the conversion correctly ?.
The problem is related to the memory management unit handling in the
kernel.
And it happens with me because of the MMU has extra configuration due to
the secure boot.
So to prove it I should run the official kernel 5.4 and disable
Right. Let's wait for the original bug reporter's reply.
We don't have any firewire audio device to test with...
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https://bugs.launchpad.net/bugs/1880835
Title:
pulse
KH: Agree it looks like IOMMU bug, this needs to get raised up to the
Intel IOMMU guys. They are tracking something specific to i915 in ICL
and TGL, but this is not as new.
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csita,
Please see if disabling Secureboot helps.Secureboot and Preboot DMA
protection go hand in hand on Dell systems.
This is an IOMMU bug.
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max w beckett,
What you are seeing is a completely different bug. Please file a
separate one.
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https://bugs.launchpad.net/bugs/1880835
Title:
pulse audio hangs in kernel
Mario,
It's Precision 7540 and dma_pte_clear_level()...
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https://bugs.launchpad.net/bugs/1880835
Title:
pulse audio hangs in kernel call
Status in linux package in
Taking after csita I unplugged/replugged all my external audio devices
and restarted pulseaudio and alsa-mixer. I found the below error in
journalctl:
Jun 27 09:15:37 hostname pulseaudio[3735]: Failed to load module
"module-alsa-card" (argument: "device_id="2" name="usb-N-SIA_KJ-
USB_HEASET-00"
My system has hit the same bug and I do not use firewire. I have not
upgraded to mainline kernel. The power cycling work arounds above do not
mitigate the issue for me.
$ cat /etc/lsb-release
DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=20.04
DISTRIB_CODENAME=focal
DISTRIB_DESCRIPTION="Ubuntu 20.04 LTS"
I have been using it for a while now and I manage to reproduce the problem with
the mainline kernel :
uname ouput:
Linux DEM-RSZABO-U20 5.7.0-050700rc7-generic #202005242331 SMP Sun May 24
23:33:19 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux
dmesg output:
[ 172.040868] firewire_ohci :27:00.0:
Now The system seems working just fine.
I have to run a long test to see if the problem occurs again
** Attachment added: "Alsa Output"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1880835/+attachment/5377480/+files/alsa-info.txt.WzjGHXBkFd
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OK I have started to test it now.
My cernel is now:
$ uname -a
Linux DEM-RSZABO-U20 5.7.0-050700rc7-generic #202005242331 SMP Sun May 24
23:33:19 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux
with self compiled and patched nvida driver (the latest driver kernel
module with the mainline kernel does
Thanks I try it out and come back with the result.
Thanks for the prompt response
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https://bugs.launchpad.net/bugs/1880835
Title:
pulse audio hangs in kernel call
Status
Please test latest mainline kernel:
https://kernel.ubuntu.com/~kernel-ppa/mainline/v5.7-rc7/
There are several fixes for oxfw which is the driver for FireWire One.
** Changed in: linux (Ubuntu)
Status: Confirmed => Incomplete
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After debugging a bit. I narrowed down the problem.
It is related to the FireWire800 auido adapter (Tascam FireOne) the
device goes in to a non working state. It seems that the the control
part of the communication works. But The SoundCard is in a dead lock.
And it hangs the kernel diver
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