Forgot to add, this is with Disco,
kernel 4.19.0-13-generic #14-Ubuntu SMP Thu Feb 7 21:51:25 UTC 2019
x86_64 x86_64 x86_64 GNU/Linux
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https://bugs.launchpad.net/bugs/1696325
I've got the same setup as the original report and the problem still
exists on a fully upgrade BIOS and dock firmware (under certain
circumstances).
1. the setup works with Thunderbolt 3 security disable (set to NONE) in
the BIOS
2. with TB3 security set to "secure", cold plugging the dock leads
I'm not sure how the bridge initialization is supposed to work with TB3
security. But, I would guess that the dock needs to be authorized first
before the PCIE bridges can be initialized.
Since the BIOS is not handling the TB3 authorization, it might not be
able to access the bridges. So the task
Public bug reported:
The x86_64 kernels have CONFIG_DMA_CMA enabled, this causes extrem hangs
of at least the RADEON driver
full discussion is here: http://lists.freedesktop.org/archives/dri-
devel/2014-August/065842.html
ProblemType: Bug
DistroRelease: Ubuntu 14.10
Package: linux-image-3.16.0-1
Disabling the udev rules fixed the delay.
Output for command:
$ sudo SYSTEMD_LOG_LEVEL=debug /lib/udev/accelerometer
/devices/platform/lis3lv02d/input/input23
[sudo] password for aschultz:
opening accelerometer device /dev/input/event17
ID_INPUT_ACCELEROMETER_ORIENTATION=undefined
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trace attached.
However, the trace shows that it existed almost instantly and normally.
So I disabled the udev rule again and reboot. This time around it did
again end up with the boot wait. So it seems that the accel udev rule is
only a coincident.
** Attachment added: "accel.trace"
https://
** Attachment added: "systemd-udevd.log"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1433557/+attachment/4362913/+files/systemd-udevd.log
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** Attachment added: "usb.out"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1433557/+attachment/4362912/+files/usb.out
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Ti
Got some more time to poke around the system. If did change the
ExecStart in /lib/systemd/system/systemd-udevd.service to:
ExecStart=/lib/systemd/systemd-udevd --debug
`journalctl -u systemd-udevd` now contains this:
Apr 01 13:56:58 alice systemd-udevd[424]: worker [458]
/devices/pci:00
Sorry for not responding earlier. The logs already posted by others mirror what
I have seen.
The work-around for me is also to 5.19.0-18-generic (or rather
6.0.0-06.202210022231 from the mainline PPA).
It feels like the problem might be related to the kernel change discussed in
https://bugs.
Public bug reported:
After upgrading to 5.19.0-17.17 from 5.19.0-16.16, system began to lock up
unexpectedly.
Log inspection showed this:
Sep 20 09:05:20 zeus kernel: BUG: kernel NULL pointer dereference, address:
0084
Sep 20 09:05:20 zeus kernel: #PF: supervisor read access in kern
apport information
** Tags added: apport-collected kinetic
** Description changed:
After upgrading to 5.19.0-17.17 from 5.19.0-16.16, system began to lock up
unexpectedly.
Log inspection showed this:
Sep 20 09:05:20 zeus kernel: BUG: kernel NULL pointer dereference, address:
0
apport information
** Attachment added: "ProcEnviron.txt"
https://bugs.launchpad.net/bugs/1990236/+attachment/5617328/+files/ProcEnviron.txt
** Changed in: linux (Ubuntu)
Status: Incomplete => New
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Note: the bot wants me to run apport on this bug, however I can not run
apport on the broken kernel and running it on the working kernel is
likely to produce wrong logs.
Please look at the boot log that I attached manually instead.
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