As stated in the bug ticket linked above, this commit:
https://kernel.ubuntu.com/git/ubuntu/ubuntu-bionic.git/commit/kernel/module.c?h=Ubuntu-4.15.0-177.186=3879f4364139acb2bd3932e6a15994f109c49d6b
causes issues on hardware where the intel_lpss driver tries to load the intel
idma driver, because
FIXED IT! It is indeed the intel_lpss driver, at least in my case.
This commit:
https://kernel.ubuntu.com/git/ubuntu/ubuntu-bionic.git/commit/kernel/module.c?h=Ubuntu-4.15.0-177.186=3879f4364139acb2bd3932e6a15994f109c49d6b
will not work right when a module that is asynchronously loaded tries to
This commit is suspected to cause issues for many users:
https://kernel.ubuntu.com/git/ubuntu/ubuntu-bionic.git/commit/kernel/module.c?h=Ubuntu-4.15.0-177.186=3879f4364139acb2bd3932e6a15994f109c49d6b
Please see this bug ticket:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1973167
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My "prime suspect" is this commit:
https://kernel.ubuntu.com/git/ubuntu/ubuntu-bionic.git/commit/kernel/module.c?h=Ubuntu-4.15.0-177.186=3879f4364139acb2bd3932e6a15994f109c49d6b
Also see Linus' comments when this patch was submitted to the mainline kernel:
I have found a change between 176 and 177 that looks suspicious:
diff -upr --color 176/linux-source-4.15.0/kernel/module.c
177/linux-source-4.15.0/kernel/module.c
--- 176/linux-source-4.15.0/kernel/module.c 2022-03-29 19:39:48.0
+0200
+++ 177/linux-source-4.15.0/kernel/module.c
Trying to isolate the issue, I:
1. Booted my portable Ubuntu 18.04.6 installation on a different machine
(different CPU, chipset, but still Intel). On the other machine, kernel
4.15.0-177 booted without issues, so apparently it does not depend on
the installation, but rather on the hardware or
Alas! I spoke to seen. The seeming "workaround" only lasted for one
boot, and after that, the ~180 seconds delay is back to stay, although
the Intel IOMMU is still disabled.
So this issue is "sporadic". Maybe even a race condition... :(
And maybe not even related to the intel-lpss driver: The
When the machine is booted, open a terminal and run "dmesg" to see on
what the kernel was stuck so long. In my case, it was the intel-lpss PCI
device initialization, and I fixed it by disabling the Intel IOMMU. If
you get similar results, this issue might be a duplicate of mine which I
reported
After grepping dmesg for all lines about the "00:15" devices, I found
two lines starting with "DMAR:", which made me think of another machine
running debian which had issues with DMAR: devices that were related to
the Intel IOMMU.
So I tried the workaround I knew from there:
Edit
After finding someone reporting the same issue
(https://forums.linuxmint.com/viewtopic.php?t=373747=2175201) and
reading that the machine may come alive after a while, I found that
indeed after 3 minutes the machine works. dmesg that reveals that it
seemingly was the initialization of the
Public bug reported:
After updating to linux-image-4.15.0-177-generic, my machine completely
freezes on the Ubuntu Welcome screen, i.e. right after switching to GUI
mode. The mouse pointer is frozen, the keyboard does not even respond to
CAPS LOCK or NUM LOCK, pressing CTRL+ALT+F2 shows no
My patch to fix this issue was pulled into Ubuntu 15.04 with the kernel
update 3.19.0-26.27:
https://launchpad.net/ubuntu/+source/linux/3.19.0-26.27
usb: core: Fix USB 3.0 devices lost in NOTATTACHED state after a hub
port reset
I can confirm that the updated kernel fixes the problem on my
Well, I developed the patch to fix my problem, so it would be rather
strange if it didn't ;-)
In short: Yes.
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Title:
REGRESSION
An enhanced version of the fix I outlined above has now been accepted
for inclusion in Linux kernel 4.2:
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/drivers/usb/core/hub.c?id=fb6d1f7df5d25299fd7b3e84b72b8851d3634764
** Attachment removed: AlsaInfo.txt
I took a different route and tried to find out what is going wrong with
the current code. I loaded the linux-source package and built kernel
3.19.3 versions with added debug messages in drivers/usb/core/hub.c to
see that is happening. I found the following chain of calls:
1. hub_port_reset()
2.
Here's what it says on the sticker:
SAMSUNG
NOTEBOOK
MODEL: NP-RF711
MODEL CODE: NP-RF711-S08DE
** Changed in: linux (Ubuntu)
Status: Incomplete = Confirmed
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** Summary changed:
- USB3 boot device lost during system boot: xhci_hcd :04:00.0: Error while
assigning device slot ID
+ REGRESSION after upgrade from 14.10 to 15.04: USB3 boot device lost during
system boot: xhci_hcd :04:00.0: Error while assigning device slot ID
** Summary changed:
Further possibly related bugs:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1408471
https://bugzilla.kernel.org/show_bug.cgi?id=90941
Seems unresolved :-(
** Bug watch added: Linux Kernel Bug Tracker #90941
http://bugzilla.kernel.org/show_bug.cgi?id=90941
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Trying various kernels from http://kernel.ubuntu.com/~kernel-
ppa/mainline, I can pinpoint that this bug was introduced with linux
kernel 3.18.
These kernels did NOT exhibit the bug:
linux-image-3.16.7-031607-generic_3.16.7-031607.201410301735_amd64.deb
Seems others have been seeing similar regressions between kernels 3.17
and 3.18:
http://lkml.iu.edu/hypermail/linux/kernel/1501.2/01802.html
Is it possible that Ubuntu did not pick up that fix...?
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apport information
** Tags added: apport-collected vivid
** Description changed:
Booting Ubuntu 15.04 amd64 kernel Linux version 3.19.0-16-generic
(buildd@komainu) (gcc version 4.9.2 (Ubuntu 4.9.2-10ubuntu13) )
#16-Ubuntu SMP Thu Apr 30 16:09:58 UTC 2015 on a Samsung RF711-S08
laptop
apport information
** Attachment added: Lspci.txt
https://bugs.launchpad.net/bugs/1455376/+attachment/4398313/+files/Lspci.txt
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apport information
** Attachment added: UdevLog.txt
https://bugs.launchpad.net/bugs/1455376/+attachment/4398322/+files/UdevLog.txt
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** Attachment added: RfKill.txt
https://bugs.launchpad.net/bugs/1455376/+attachment/4398320/+files/RfKill.txt
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apport information
** Attachment added: UdevDb.txt
https://bugs.launchpad.net/bugs/1455376/+attachment/4398321/+files/UdevDb.txt
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apport information
** Attachment added: ProcEnviron.txt
https://bugs.launchpad.net/bugs/1455376/+attachment/4398316/+files/ProcEnviron.txt
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** Attachment added: PulseList.txt
https://bugs.launchpad.net/bugs/1455376/+attachment/4398319/+files/PulseList.txt
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** Attachment added: ProcModules.txt
https://bugs.launchpad.net/bugs/1455376/+attachment/4398318/+files/ProcModules.txt
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** Attachment added: CRDA.txt
https://bugs.launchpad.net/bugs/1455376/+attachment/4398309/+files/CRDA.txt
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apport information
** Attachment added: Lsusb.txt
https://bugs.launchpad.net/bugs/1455376/+attachment/4398314/+files/Lsusb.txt
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apport information
** Attachment added: ProcCpuinfo.txt
https://bugs.launchpad.net/bugs/1455376/+attachment/4398315/+files/ProcCpuinfo.txt
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** Attachment added: ProcInterrupts.txt
https://bugs.launchpad.net/bugs/1455376/+attachment/4398317/+files/ProcInterrupts.txt
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** Package changed: ubuntu = linux (Ubuntu)
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Title:
USB3 boot device lost during system boot: xhci_hcd :04:00.0:
Error while
Forgot to mention: Ubuntu 14.10 (linux kernel 3.16) booted without this
problem off the same USB3 stick on the same USB3 port on the same
laptop. So this is a regression that was introduced in Ubuntu 15.04
(linux kernel 3.19).
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** Attachment added: IwConfig.txt
https://bugs.launchpad.net/bugs/1455376/+attachment/4398311/+files/IwConfig.txt
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** Attachment added: JournalErrors.txt
https://bugs.launchpad.net/bugs/1455376/+attachment/4398312/+files/JournalErrors.txt
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** Attachment added: WifiSyslog.txt
https://bugs.launchpad.net/bugs/1455376/+attachment/4398323/+files/WifiSyslog.txt
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** Attachment added: CurrentDmesg.txt
https://bugs.launchpad.net/bugs/1455376/+attachment/4398310/+files/CurrentDmesg.txt
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