initramfs does not copy ehci-platform

What kernel is it that includes an ehci-platform driver? I'm not seeing it in linux or linux-hwe in xenial.

Maybe it is only on ARM?

dannf@xps13:/tmp$ dpkg -c linux-modules-4.15.0-64-generic_4.15.0-64.73~16.04.1_arm64.deb | grep ehci-platform
-rw-r--r-- root/root 17238 2019-09-13 06:10 ./lib/modules/4.15.0-64-generic/kernel/drivers/usb/host/ehci-platform.ko

Hello Ike, or anyone else affected,

Accepted initramfs-tools into xenial-proposed. The package will build now and be available at https://launchpad.net/ubuntu/+source/initramfs-tools/0.122ubuntu8.15 in a few hours, and then in the -proposed repository.

Please help us by testing this new package. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation on how to enable and use -proposed. Your feedback will aid us getting this update out to other Ubuntu users.

If this package fixes the bug for you, please add a comment to this bug, mentioning the version of the package you tested and change the tag from verification-needed-xenial to verification-done-xenial. If it does not fix the bug for you, please add a comment stating that, and change the tag to verification-failed-xenial. In either case, without details of your testing we will not be able to proceed.

Further information regarding the verification process can be found at https://wiki.ubuntu.com/QATeam/PerformingSRUVerification . Thank you in advance for helping!

N.B. The updated package will be released to -updates after the bug(s) fixed by this package have been verified and the package has been in -proposed for a minimum of 7 days.

ehci-platform is built-in for amd64/i386 but is module in other arch

$ git grep EHCI_HCD_PLATFORM debian.hwe/config
debian.hwe/config/amd64/config.common.amd64:CONFIG_USB_EHCI_HCD_PLATFORM=y
debian.hwe/config/annotations:CONFIG_USB_EHCI_HCD_PLATFORM policy<{'amd64': 'y', 'arm64': 'm', 'armhf': 'n', 'i386': 'y', 'ppc64el': 'm'}>
debian.hwe/config/annotations:CONFIG_USB_EHCI_HCD_PLATFORM mark<ENFORCED> note<Don't use the generic ehci/ohci code on omap, it doesn't work> flag<REVIEW>
debian.hwe/config/arm64/config.common.arm64:CONFIG_USB_EHCI_HCD_PLATFORM=m
debian.hwe/config/armhf/config.common.armhf:# CONFIG_USB_EHCI_HCD_PLATFORM is not set
debian.hwe/config/i386/config.common.i386:CONFIG_USB_EHCI_HCD_PLATFORM=y
debian.hwe/config/ppc64el/config.common.ppc64el:CONFIG_USB_EHCI_HCD_PLATFORM=m
debian.hwe/config/x32/config.common.x32:CONFIG_USB_EHCI_HCD_PLATFORM=m
debian.hwe/config/x32/config.flavour.generic:CONFIG_USB_EHCI_HCD_PLATFORM=m

$ zcat /boot/initrd.img-4.15.0-64-generic | cpio -idmv 2> /dev/null
$ find . -name 'ehci*'
./lib/modules/4.15.0-64-generic/kernel/drivers/usb/host/ehci-platform.ko
$ dpkg --list | grep initramfs-tools-core
ii initramfs-tools-core 0.122ubuntu8.15 all generic modular initramfs generator (core tools)

Thanks. The initramfs-tools-core in -proposed generates initrd with ehci-platform.

Has there been any testing performed on the architectures on which the module is compiled in please, for example amd64? It seems to me that this is a particularly important code path to test, since it is identified as different and a bug could render regressed systems unbootable.

Tested on x86 xenial-hwe. `update-initramfs` works and no ehci-platform in initrd. System works fine after reboot.

ubuntu@zwicky:~$ sudo update-initramfs -k all -u
update-initramfs: Generating /boot/initrd.img-4.15.0-65-generic
W: mdadm: /etc/mdadm/mdadm.conf defines no arrays.
update-initramfs: Generating /boot/initrd.img-4.15.0-64-generic
W: mdadm: /etc/mdadm/mdadm.conf defines no arrays.
ubuntu@zwicky:~$ ls -al /boot
total 131680
drwxr-xr-x 4 root root 4096 Sep 26 04:20 .
drwxr-xr-x 23 root root 4096 Sep 26 04:15 ..
-rw-r--r-- 1 root root 217381 Sep 13 11:11 config-4.15.0-64-generic
-rw-r--r-- 1 root root 217370 Sep 18 11:06 config-4.15.0-65-generic
drwxr-xr-x 3 root root 4096 Jan 1 1970 efi
drwxr-xr-x 5 root root 4096 Sep 26 04:16 grub
-rw-r--r-- 1 root root 54946864 Sep 26 04:20 initrd.img-4.15.0-64-generic
-rw-r--r-- 1 root root 54945126 Sep 26 04:19 initrd.img-4.15.0-65-generic
-rw------- 1 root root 4061501 Sep 13 11:11 System.map-4.15.0-64-generic
-rw------- 1 root root 4062077 Sep 18 11:06 System.map-4.15.0-65-generic
-rw------- 1 root root 8172440 Sep 17 19:28 vmlinuz-4.15.0-64-generic
-rw------- 1 root root 8181016 Sep 19 08:08 vmlinuz-4.15.0-65-generic
ubuntu@zwicky:~$ sudo dpkg -l | grep initramfs-tools-core
ii initramfs-tools-core 0.122ubuntu8.15 all generic modular initramfs generator (core tools)
ubuntu@zwicky:~/temp$ dd if=/boot/initrd.img-4.15.0-65-generic of=initrd.img bs=512 skip=4768; zcat initrd.img | cpio -i
102546+1 records in
102546+1 records out
52503910 bytes (53 MB, 50 MiB) copied, 0.17038 s, 308 MB/s
296093 blocks
ubuntu@zwicky:~/temp$ ls
bin conf etc init initrd.img lib lib64 run sbin scripts usr var
ubuntu@zwicky:~/temp$ find . -name '*hci*'
./lib/modules/4.15.0-65-generic/kernel/drivers/mmc/host/sdhci-pci.ko
./lib/modules/4.15.0-65-generic/kernel/drivers/mmc/host/sdhci.ko
./lib/modules/4.15.0-65-generic/kernel/drivers/mmc/host/sdhci-xenon-driver.ko
./lib/modules/4.15.0-65-generic/kernel/drivers/mmc/host/sdhci-acpi.ko
./lib/modules/4.15.0-65-generic/kernel/drivers/mmc/host/sdhci-pltfm.ko
./lib/modules/4.15.0-65-generic/kernel/drivers/usb/host/xhci-plat-hcd.ko
./lib/modules/4.15.0-65-generic/kernel/drivers/ata/acard-ahci.ko
./lib/modules/4.15.0-65-generic/kernel/drivers/ata/ahci_platform.ko
./lib/modules/4.15.0-65-generic/kernel/drivers/ata/ahci.ko
./lib/modules/4.15.0-65-generic/kernel/drivers/ata/libahci_platform.ko
./lib/modules/4.15.0-65-generic/kernel/drivers/ata/libahci.ko
./lib/modules/4.15.0-65-generic/kernel/drivers/firewire/firewire-ohci.ko
ubuntu@zwicky:~/temp$ uname -a
Linux zwicky 4.15.0-65-generic #74~16.04.1-Ubuntu SMP Wed Sep 18 09:51:44 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux

The verification of the Stable Release Update for initramfs-tools has completed successfully and the package is now being released to -updates. Subsequently, the Ubuntu Stable Release Updates Team is being unsubscribed and will not receive messages about this bug report. In the event that you encounter a regression using the package from -updates please report a new bug using ubuntu-bug and tag the bug report regression-update so we can easily find any regressions.

This bug was fixed in the package initramfs-tools - 0.122ubuntu8.15

---------------
initramfs-tools (0.122ubuntu8.15) xenial; urgency=medium

  * hook-functions: include ehci-platform from HWE kernel.
    (LP: #1842284)

 -- Ike Panhc <email address hidden> Wed, 04 Sep 2019 15:24:58 +0800