Hi
I am seeing strange behaviour with the dvb-usb-cxusb.ko module.
Things have been working fine until just recently.
Target system is Ubuntu 16.04 LTS on amd64.
I am using their 'hwe' kernel series.
Symptoms:
* linux-image-4.15.0-58-generic + media-build from a few weeks ago works
fine
* linux-image-4.15.0-64-generic without media-build works fine
* linux-image-4.15.0-64-generic + media build fails
The failure:
The media-build modules compile and install just fine,
but when I try to boot the kernel with those modules,
one of the devices in the machine is not fully detected.
It seems that the dvb-usb-cxusb.ko module is not loading
and so the ir receiver is not detected.
When I try to manually modprobe the module I get a really weird result:
$ sudo modprobe -v dvb-usb-cxusb
insmod /lib/modules/4.15.0-64-generic/kernel/drivers/media/mc/mc.ko
insmod
/lib/modules/4.15.0-64-generic/kernel/drivers/media/v4l2-core/videodev.ko
insmod
/lib/modules/4.15.0-64-generic/kernel/drivers/media/common/videobuf2/videobuf2-common.ko
insmod
/lib/modules/4.15.0-64-generic/kernel/drivers/media/common/videobuf2/videobuf2-v4l2.ko
insmod
/lib/modules/4.15.0-64-generic/kernel/drivers/media/common/videobuf2/videobuf2-memops.ko
insmod
/lib/modules/4.15.0-64-generic/kernel/drivers/media/common/videobuf2/videobuf2-vmalloc.ko
insmod
/lib/modules/4.15.0-64-generic/kernel/drivers/media/v4l2-core/v4l2-common.ko
modprobe: ERROR: could not insert 'dvb_usb_cxusb': Exec format error
$ file
/lib/modules/4.15.0-64-generic/kernel/drivers/media/usb/dvb-usb/dvb-usb-cxusb.ko
/lib/modules/4.15.0-64-generic/kernel/drivers/media/usb/dvb-usb/dvb-usb-cxusb.ko:
ELF 64-bit LSB relocatable, x86-64, version 1 (SYSV),
BuildID[sha1]=9234462bd2bef10fa72a648d31af572236589e9b, not stripped
When I built the modules for 4.15.0-58 media-build HEAD was
commit 81bdb4532e08545386d2aa3a54a806afcb5050e2
Author: Hans Verkuil <hverkuil-cisco@xxxxxxxxx>
Date: Thu Aug 22 08:25:00 2019 +0200
Update backports/v4.6_i2c_mux.patch
When I built the modules for 4.15.0-64, the media-build HEAD was
commit d75b29db1297d2475227cc8bada843542271e40d
Author: Hans Verkuil <hverkuil-cisco@xxxxxxxxx>
Date: Tue Aug 27 09:42:03 2019 +0200
Update backports/v4.0_fwnode.patch
The media-build warning in syslog reads:
(4.15.0-58)
Latest git patches (needed if you report a bug to
linux-media@xxxxxxxxxxxxxxx):
577bbf23b758848f0c4a50d346460b690c753024 media: sunxi: Add A10 CSI
driver
3f0e6df62213ede83e3b223d36594cbcc953cb08 media: sunxi: Refactor
the Makefile and Kconfig
c5e8f4ccd7750487f4ce05d0e801637124f14609 media: dt-bindings:
media: Add Allwinner A10 CSI binding
(4.15.0-64)
Latest git patches (needed if you report a bug to
linux-media@xxxxxxxxxxxxxxx):
6f51fdfd8229d5358c2d6e272cf73478866e8ddc media: videobuf-core.c:
poll_wait needs a non-NULL buf pointer
20a438d53fd9d12a894161bc56cbeab7a9993c39 media: sun4i: Make
sun4i_csi_formats static
968bce2f59ce462d296af28610628fe7e03b120a media: imx: remove unused
including <linux/version.h>
I've attached the outputs from 'journalctl -b -0' for two of the three
cases above (*),
which give more detail of the boot.
I can provide a complete log of the build against 4.15.0-64 if that
would be helpful.
Kind regards
Vince
(*) Only sending two to avoid the message getting blocked for being overlong,
there seems to be a 100,000 character limit.
$ cat /etc/os-release
NAME="Ubuntu"
VERSION="16.04.6 LTS (Xenial Xerus)"
ID=ubuntu
ID_LIKE=debian
PRETTY_NAME="Ubuntu 16.04.6 LTS"
VERSION_ID="16.04"
HOME_URL="http://www.ubuntu.com/";
SUPPORT_URL="http://help.ubuntu.com/";
BUG_REPORT_URL="http://bugs.launchpad.net/ubuntu/";
VERSION_CODENAME=xenial
UBUNTU_CODENAME=xenial
Attachment:
journalctl.4.15.0-64+media.txt.gz
Description: GNU Zip compressed data
