** Changed in: ubuntu-kernel-tests
Status: Invalid => Triaged
** Summary changed:
- ftrace test failed with Register/unregister many kprobe events in
ubuntu_kernel_selftests on B-AWS-5.0 / E
+ ftrace test failed with Register/unregister many kprobe events in
ubuntu_kernel_selftests on
Please note disco has been EOL, if the failures are still exhibited with
another release, lets open a new bug as this has been stale for quite
some time
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No longer see a failure with KProbe events on AWS for SRU cycle
2020.04.06 : 5.3.0-1017.18
[41] Kprobe dynamic event with function tracer [PASS]
[42] Kprobe event parser error log check[PASS]
[43] Kretprobe dynamic event with arguments [PASS]
** Changed in: ubuntu-kernel-tests
** Summary changed:
- ftrace test failed with Register/unregister many kprobe events in
ubuntu_kernel_selftests on B-AWS-5.0
+ ftrace test failed with Register/unregister many kprobe events in
ubuntu_kernel_selftests on B-AWS-5.0 / E
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This can be found on Eoan 5.3.0-43.36 as well.
** Tags added: 5.3 eoan sru-20200316
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https://bugs.launchpad.net/bugs/1866972
Title:
ftrace test failed with Register/unregister many
With /bin/sh in ftrace/test.d/kprobe/multiple_kprobes.tc changed to
/bin/bash this is still failing with the upstream repo.
Run this test with the following command to see more debug info:
./ftracetest test.d/kprobe/multiple_kprobes.tc -v
Test failed because the wc -l result for kprobe_events
Does it fail if you change /bin/sh to point to bash instead of dash?
I know some ftrace tests failed because of how 'echo' would behave
differently between those two shells, and that using printf would be
better, and that Seth has already sent a patch for that upstream.
I recall this test being
I have 5.0.0-1027-aws tested against with the latest upstream code
(f35111a9 https://github.com/torvalds/linux.git)
And this is still failing:
# [51] Register/unregister many kprobe events [FAIL]
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I have the proposed kernel tested with the tool in 5.0.0-1025-aws
kernel, and it will pass.
But with the tool in 5.0.0-1027-aws kernel it will fail, it looks like a
testing tool issue to me.
** Also affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Also affects: linux
