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Bug
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Resolution: Duplicate
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Undefined
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None
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CentOS Stream 9
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None
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sst_kernel_tps
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ssg_core_kernel
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None
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False
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None
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None
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None
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None
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Unspecified
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None
What were you trying to do that didn't work?
bpf-biostacks 1
Please provide the package NVR for which bug is seen:
dnf info libbpf-tools
Installed Packages
Name : libbpf-tools
Version : 0.26.0
Release : 4.el9
Architecture : x86_64
Size : 19 M
Source : bcc-0.26.0-4.el9.src.rpm
Repository : @System
From repo : appstream
...
The command works fine on kernel vmlinuz-5.14.0-363.el9.x86_64, and 5.14.0-366.el9.x86_64, but fails on 5.14.0-370.el9.x86_64 and 5.14.0-375.el9.x86_64.
Somewhere in between those 366 and 370, the tool began to fail.
How reproducible:
Reproducible
Steps to reproduce
- Pull CentOS Stream 9 QCOW2 and do a dnf up -y --refresh
- bpf-biostacks 1
Expected results
It displays the stacks and the counts distribution
Actual results
libbpf: prog 'blk_account_io_done': failed to find kernel BTF type ID of 'blk_account_io_done': -3 libbpf: prog 'blk_account_io_done': failed to prepare load attributes: -3 libbpf: prog 'blk_account_io_done': failed to load: -3 libbpf: failed to load object 'biostacks_bpf' libbpf: failed to load BPF skeleton 'biostacks_bpf': -3 failed to load BPF object: -3
