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Bug
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Resolution: Done-Errata
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Normal
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rhel-9.4
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None
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elfutils-0.190-2.el9
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None
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Medium
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sst_pt_perf_debug
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ssg_platform_tools
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15
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16
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1
-
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False
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No
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Red Hat Enterprise Linux
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None
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All
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None
What were you trying to do that didn't work?
libdwfl fails to report some modules in corefiles containing non-contiguous and interleaving shared library segments.
For example
[...]
7f0972082000-7f09720a4000 00000000 139264 /usr/lib64/ld-2.17.so
7f09720a4000-7f09720a5000 00000000 4096 /memfd:mozilla-ipc (deleted)
7f09720a5000-7f09720a7000 00000000 8192 /memfd:mozilla-ipc (deleted)
7f09720a7000-7f09720a9000 00000000 8192 /memfd:mozilla-ipc (deleted)
7f0972134000-7f0972136000 00000000 8192 /usr/lib64/firefox/libmozwayland.so
7f0972136000-7f0972137000 00002000 4096 /usr/lib64/firefox/libmozwayland.so
7f0972137000-7f0972138000 00003000 4096 /usr/lib64/firefox/libmozwayland.so
7f0972138000-7f0972139000 00003000 4096 /usr/lib64/firefox/libmozwayland.so
7f097213a000-7f0972147000 00000000 53248 /usr/lib64/firefox/libmozsqlite3.so
7f0972147000-7f097221e000 0000d000 880640 /usr/lib64/firefox/libmozsqlite3.so
7f097221e000-7f0972248000 000e4000 172032 /usr/lib64/firefox/libmozsqlite3.so
7f0972248000-7f0972249000 0010e000 4096 /usr/lib64/firefox/libmozsqlite3.so
7f0972249000-7f097224c000 0010e000 12288 /usr/lib64/firefox/libmozsqlite3.so
7f097224c000-7f0972250000 00111000 16384 /usr/lib64/firefox/libmozsqlite3.so
7f0972250000-7f0972253000 00000000 12288 /usr/lib64/firefox/liblgpllibs.so
[...]
7f09722a3000-7f09722a4000 00021000 4096 /usr/lib64/ld-2.17.so
7f09722a4000-7f09722a5000 00022000 4096 /usr/lib64/ld-2.17.so
In between non-contiguous ld-2.17.so segments there are a number of segments for other shared libraries. dwfl_segment_report_module can either fail to report the modules corresponding to these libraries or prematurely close the module's file descriptors.
- clones
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RHEL-18913 elfutils incorrectly handles core files with non-contiguous segments
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- Closed
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- links to
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RHBA-2023:123628 elfutils bug fix and enhancement update
- mentioned on