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tetragon: TestCopyFd test failing on 4.19 kernel #152

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olsajiri opened this issue Jun 10, 2022 · 2 comments · Fixed by #168
Closed

tetragon: TestCopyFd test failing on 4.19 kernel #152

olsajiri opened this issue Jun 10, 2022 · 2 comments · Fixed by #168

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@olsajiri
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TestCopyFd test is failing on 4.19 kernel. It looks like it does not get read event from 'dup' fd.
test.log
tetragon.gotest.TestCopyFd.720014031.json.log
@tpapagian
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Yes, I can repro that on 5.10 and 5.4 as well. Out of dup, dup2, and dup3 it seems that dup does not generate an event as you said. The strange thing here is that dup uses FollowFD at fd_install and not CopyFD. FollowFD at fd_install seems to work from the initial open call. Still looking at it.

@tpapagian tpapagian mentioned this issue Jun 14, 2022
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@tpapagian
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Created #161 to unblock that. Still dup system call needs fixing.

@tpapagian tpapagian mentioned this issue Jun 15, 2022
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Fix CopyFD test cilium/tetragon
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@tpapagian @olsajiri