** Also affects: linux (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/2017006
Title:
fix build issue for v5.19 kernels (jammy-hwe, kinetic, lunar-riscv)
Status in linux package in Ubuntu:
New
Status in lttng-modules package in Ubuntu:
In Progress
Status in linux source package in Jammy:
New
Status in lttng-modules source package in Jammy:
Fix Committed
Status in linux source package in Kinetic:
New
Status in lttng-modules source package in Kinetic:
Fix Committed
Status in linux source package in Lunar:
New
Status in lttng-modules source package in Lunar:
Fix Committed
Bug description:
SRU Justification
[ Impact ]
Upstream stable added a change in the format of jbd2 in 5.15.87 that
was cherry-picked to kinetic:linux.
This is incompatible with the current changes in the lttng-module
kinetic.
We previously encountered this issue for focal
https://bugs.launchpad.net/ubuntu-kernel-tests/+bug/2004644
and we proactively released a new version for kinetic.
The problem is the fix does not really work as expected.
As shown in the logs below,
The build error is triggered because some function declaration does not match
the kernel's.
In `include/instrumentation/events/jbd2.h` in lttng-modules, there is a
conditional declaration based on the kernel version. 5.19 is missing there,
therefore kinetic will fall back to the old declaration. The reason 5.19 is not
there is probably because this version has reached end of life last year.
Build logs:
35:35 DEBUG| [stdout] In file included from
/var/lib/dkms/lttng-modules/2.13.8/build/src/probes/../../include/lttng/define_trace.h:87,
860 02:35:35 DEBUG| [stdout] from
/var/lib/dkms/lttng-modules/2.13.8/build/src/probes/../../include/instrumentation/events/jbd2.h:293,
861 02:35:35 DEBUG| [stdout] from
/var/lib/dkms/lttng-modules/2.13.8/build/src/probes/lttng-probe-jbd2.c:29:
862 02:35:35 DEBUG| [stdout]
/var/lib/dkms/lttng-modules/2.13.8/build/src/probes/../../include/lttng/tracepoint-event-impl.h:133:6:
error: conflicting types for ‘trace_jbd2_run_stats’; have ‘void(dev_t, long
unsigned int, struct transaction_run_stats_s *)’ {aka ‘void(unsigned int,
long unsigned int, struct transaction_run_stats_s *)’}
863 02:35:35 DEBUG| [stdout] 133 | void
trace_##_name(_proto);
864 02:35:35 DEBUG| [stdout] | ^~~~~~
865 02:35:35 DEBUG| [stdout]
/var/lib/dkms/lttng-modules/2.13.8/build/src/probes/../../include/lttng/tracepoint-event-impl.h:45:9:
note: in expansion of macro ‘LTTNG_TRACEPOINT_EVENT_INSTANCE_MAP’
866 02:35:35 DEBUG| [stdout] 45 |
LTTNG_TRACEPOINT_EVENT_INSTANCE_MAP(map, name, map, PARAMS(proto), PARAMS(args))
867 02:35:35 DEBUG| [stdout] |
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
868 02:35:35 DEBUG| [stdout]
/var/lib/dkms/lttng-modules/2.13.8/build/src/probes/../../include/lttng/tracepoint-event-impl.h:87:9:
note: in expansion of macro ‘LTTNG_TRACEPOINT_EVENT_MAP’
869 02:35:35 DEBUG| [stdout] 87 |
LTTNG_TRACEPOINT_EVENT_MAP(name, name, \
870 02:35:35 DEBUG| [stdout] |
^~~~~~~~~~~~~~~~~~~~~~~~~~
871 02:35:35 DEBUG| [stdout]
/var/lib/dkms/lttng-modules/2.13.8/build/src/probes/../../include/instrumentation/events/jbd2.h:180:1:
note: in expansion of macro ‘LTTNG_TRACEPOINT_EVENT’
872 02:35:35 DEBUG| [stdout] 180 |
LTTNG_TRACEPOINT_EVENT(jbd2_run_stats,
873 02:35:35 DEBUG| [stdout] | ^~~~~~~~~~~~~~~~~~~~~~
874 02:35:35 DEBUG| [stdout] In file included from
./include/trace/events/jbd2.h:9,
875 02:35:35 DEBUG| [stdout] from
/var/lib/dkms/lttng-modules/2.13.8/build/src/probes/lttng-probe-jbd2.c:18:
876 02:35:35 DEBUG| [stdout]
./include/linux/tracepoint.h:245:28: note: previous definition of
‘trace_jbd2_run_stats’ with type ‘void(dev_t, tid_t, struct
transaction_run_stats_s *)’ {aka ‘void(unsigned int, unsigned int, struct
transaction_run_stats_s *)’}
877 02:35:35 DEBUG| [stdout] 245 | static inline
void trace_##name(proto) \
878 02:35:35 DEBUG| [stdout] |
^~~~~~
879 02:35:35 DEBUG| [stdout]
./include/linux/tracepoint.h:419:9: note: in expansion of macro
‘__DECLARE_TRACE’
880 02:35:35 DEBUG| [stdout] 419 |
__DECLARE_TRACE(name, PARAMS(proto), PARAMS(args), \
881 02:35:35 DEBUG| [stdout] | ^~~~~~~~~~~~~~~
882 02:35:35 DEBUG| [stdout]
./include/linux/tracepoint.h:553:9: note: in expansion of macro ‘DECLARE_TRACE’
883 02:35:35 DEBUG| [stdout] 553 |
DECLARE_TRACE(name, PARAMS(proto), PARAMS(args))
884 02:35:35 DEBUG| [stdout] | ^~~~~~~~~~~~~
885 02:35:35 DEBUG| [stdout]
./include/trace/events/jbd2.h:248:1: note: in expansion of macro ‘TRACE_EVENT’
886 02:35:35 DEBUG| [stdout] 248 |
TRACE_EVENT(jbd2_run_stats,
887 02:35:35 DEBUG| [stdout] | ^~~~~~~~~~~
888 02:35:35 DEBUG| [stdout]
/var/lib/dkms/lttng-modules/2.13.8/build/src/probes/../../include/lttng/tracepoint-event-impl.h:133:6:
error: conflicting types for ‘trace_jbd2_checkpoint_stats’; have ‘void(dev_t,
long unsigned int, struct transaction_chp_stats_s *)’ {aka ‘void(unsigned int,
long unsigned int, struct transaction_chp_stats_s *)’}
889 02:35:35 DEBUG| [stdout] 133 | void
trace_##_name(_proto);
890 02:35:35 DEBUG| [stdout] | ^~~~~~
891 02:35:35 DEBUG| [stdout]
/var/lib/dkms/lttng-modules/2.13.8/build/src/probes/../../include/lttng/tracepoint-event-impl.h:45:9:
note: in expansion of macro ‘LTTNG_TRACEPOINT_EVENT_INSTANCE_MAP’
892 02:35:35 DEBUG| [stdout] 45 |
LTTNG_TRACEPOINT_EVENT_INSTANCE_MAP(map, name, map, PARAMS(proto), PARAMS(args))
893 02:35:35 DEBUG| [stdout] |
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
894 02:35:35 DEBUG| [stdout]
/var/lib/dkms/lttng-modules/2.13.8/build/src/probes/../../include/lttng/tracepoint-event-impl.h:87:9:
note: in expansion of macro ‘LTTNG_TRACEPOINT_EVENT_MAP’
895 02:35:35 DEBUG| [stdout] 87 |
LTTNG_TRACEPOINT_EVENT_MAP(name, name, \
896 02:35:35 DEBUG| [stdout] |
^~~~~~~~~~~~~~~~~~~~~~~~~~
897 02:35:35 DEBUG| [stdout]
/var/lib/dkms/lttng-modules/2.13.8/build/src/probes/../../include/instrumentation/events/jbd2.h:200:1:
note: in expansion of macro ‘LTTNG_TRACEPOINT_EVENT’
898 02:35:35 DEBUG| [stdout] 200 |
LTTNG_TRACEPOINT_EVENT(jbd2_checkpoint_stats,
899 02:35:35 DEBUG| [stdout] | ^~~~~~~~~~~~~~~~~~~~~~
900 02:35:35 DEBUG| [stdout]
./include/linux/tracepoint.h:245:28: note: previous definition of
‘trace_jbd2_checkpoint_stats’ with type ‘void(dev_t, tid_t, struct
transaction_chp_stats_s *)’ {aka ‘void(unsigned int, unsigned int, struct
transaction_chp_stats_s *)’}
901 02:35:35 DEBUG| [stdout] 245 | static inline
void trace_##name(proto) \
902 02:35:35 DEBUG| [stdout] |
^~~~~~
903 02:35:35 DEBUG| [stdout]
./include/linux/tracepoint.h:419:9: note: in expansion of macro
‘__DECLARE_TRACE’
904 02:35:35 DEBUG| [stdout] 419 |
__DECLARE_TRACE(name, PARAMS(proto), PARAMS(args), \
905 02:35:35 DEBUG| [stdout] | ^~~~~~~~~~~~~~~
906 02:35:35 DEBUG| [stdout]
./include/linux/tracepoint.h:553:9: note: in expansion of macro ‘DECLARE_TRACE’
907 02:35:35 DEBUG| [stdout] 553 |
DECLARE_TRACE(name, PARAMS(proto), PARAMS(args))
908 02:35:35 DEBUG| [stdout] | ^~~~~~~~~~~~~
909 02:35:35 DEBUG| [stdout]
./include/trace/events/jbd2.h:296:1: note: in expansion of macro ‘TRACE_EVENT’
910 02:35:35 DEBUG| [stdout] 296 |
TRACE_EVENT(jbd2_checkpoint_stats,
911 02:35:35 DEBUG| [stdout] | ^~~~~~~~~~~
912 02:35:35 DEBUG| [stdout] make[3]: ***
[scripts/Makefile.build:257:
/var/lib/dkms/lttng-modules/2.13.8/build/src/probes/lttng-probe-jbd2.o] Error 1
913 02:35:35 DEBUG| [stdout] make[2]: ***
[scripts/Makefile.build:474:
/var/lib/dkms/lttng-modules/2.13.8/build/src/probes] Error 2
914 02:35:35 DEBUG| [stdout] make[1]: ***
[scripts/Makefile.build:474: /var/lib/dkms/lttng-modules/2.13.8/build/src]
Error 2
915 02:35:35 DEBUG| [stdout] make: *** [Makefile:1850:
/var/lib/dkms/lttng-modules/2.13.8/build] Error 2
916 02:35:35 DEBUG| [stdout] make: Leaving directory
'/usr/src/linux-headers-5.19.0-42-generic'
917 02:35:35 ERROR| Exception escaping from test:
918 Traceback (most recent call last):
919 File "/home/ubuntu/autotest/client/shared/test.py",
line 378, in _exec
920 _cherry_pick_call(self.initialize, *args, **dargs)
921 File "/home/ubuntu/autotest/client/shared/test.py",
line 738, in _cherry_pick_call
922 return func(*p_args, **p_dargs)
923 File
"/home/ubuntu/autotest/client/tests/ubuntu_lttng_smoke_test/ubuntu_lttng_smoke_test.py",
line 58, in initialize
924 raise error.TestError('DKMS failed to install')
[ Fix ]
Add [5.19.0 - 5.19.19] interval
This requires a new release for kinetic and jammy because jammy 5.19
backports are affected as well. Also lunar, because some riscv kernels are
still on 5.19 as well.
[ Where problems would occur ]
We may notice new failures in ubuntu_lttng_smoke_test once this will
compile and run. But it was tested locally and the results were good,
so the probability is very very low.
[ Test Plan ]
1. Install kinetic latest kernel 5.19.0-42 or any other 5.19 kernel
2. sudo apt install ltnng-modules-dkms
3. Without the fix it will fail the build with the error from above.
with the fix, the module should be installed.
4. Additionally lttng-modules regression test should be triggered to confirm
everything works file.
Steps to run rt:
# Install packages for autotest
sudo apt-get install git python2 gdb python-yaml -y || sudo apt-get install
git python gdb python-yaml -y
# Enable deb-src
sudo sed -i 's/^# deb-src/deb-src/' /etc/apt/sources.list
sudo apt-get update
git clone --depth=1
https://git.launchpad.net/~canonical-kernel-team/+git/autotest
git clone --depth=1
https://git.launchpad.net/~canonical-kernel-team/+git/autotest-client-tests
rm -fr autotest/client/tests
ln -sf ~/autotest-client-tests autotest/client/tests
AUTOTEST_PATH=/home/ubuntu/autotest sudo -E autotest/client/autotest-local
--verbose autotest/client/tests/ubuntu_lttng_smoke_test/control
[ Local test results ]
I tested on a VM with the latest kinetic version : 5.19.0-42-generic:
ubuntu@kinetic:~/lttng-modules$ dpkg -l | grep lttng-modules
ii lttng-modules-dkms 2.13.8-1~ubuntu22.10.1 all Linux Trace Toolkit (LTTng)
kernel modules (DKMS)
RT results:
08:54:11 INFO | Summary: 7 passed, 0 failed
08:54:11 DEBUG| Running 'apt-get remove --yes lttng-modules-dkms'
08:54:20 INFO | GOOD
ubuntu_lttng_smoke_test.lttng-smoke-test
ubuntu_lttng_smoke_test.lttng-smoke-test timestamp=1683536060
localtime=May 08 08:54:20 completed successfully
08:54:20 INFO | END GOOD
ubuntu_lttng_smoke_test.lttng-smoke-test
ubuntu_lttng_smoke_test.lttng-smoke-test timestamp=1683536060
localtime=May 08 08:54:20
08:54:20 DEBUG| Persistent state client._record_indent now set to 1
08:54:20 DEBUG| Persistent state client.unexpected_reboot deleted
08:54:20 INFO | END GOOD ---- ---- timestamp=1683536060
localtime=May 08 08:54:20
For jammy, I applied the commit that broke it, built the kernel on cbd and
booted in a vm:
ubuntu@jammy-generic:~/lttng-modules$ dpkg -l | grep lttng-modules
ii lttng-modules-dkms 2.13.8-1~ubuntu22.04.1 all Linux Trace Toolkit (LTTng)
kernel modules (DKMS)
RT results:
09:00:24 INFO | Summary: 7 passed, 0 failed
09:00:24 DEBUG| Running 'apt-get remove --yes lttng-modules-dkms'
09:00:31 INFO | GOOD
ubuntu_lttng_smoke_test.lttng-smoke-test
ubuntu_lttng_smoke_test.lttng-smoke-test timestamp=1683536431
localtime=May 08 09:00:31 completed successfully
09:00:31 INFO | END GOOD
ubuntu_lttng_smoke_test.lttng-smoke-test
ubuntu_lttng_smoke_test.lttng-smoke-test timestamp=1683536431
localtime=May 08 09:00:31
09:00:31 DEBUG| Persistent state client._record_indent now set to 1
09:00:31 DEBUG| Persistent state client.unexpected_reboot deleted
09:00:31 INFO | END GOOD ---- ---- timestamp=1683536431
localtime=May 08 09:00:31
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