Bug 291252 - e6000sw.ko fails to load with module loader local symbol resolution disabled
Summary: e6000sw.ko fails to load with module loader local symbol resolution disabled
Status: New
Alias: None
Product: Base System
Classification: Unclassified
Component: kern (show other bugs)
Version: 16.0-CURRENT
Hardware: Any Any
: --- Affects Only Me
Assignee: freebsd-bugs (Nobody)
URL:
Keywords:
Depends on:
Blocks: 207898
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Reported: 2025-11-27 16:38 UTC by Ed Maste
Modified: 2025-11-28 18:03 UTC (History)
1 user (show)

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Description Ed Maste freebsd_committer freebsd_triage 2025-11-27 16:38:52 UTC 
See https://lists.freebsd.org/archives/freebsd-current/2025-November/009500.html for background.

To reproduce, set
debug.link_elf_leak_locals=0
debug.link_elf_obj_leak_locals=0
then

% kldload e6000sw.ko
link_elf_obj: symbol mdio_readreg_desc undefined
linker_load_file: /boot/kernel/e6000sw.ko - unsupported file type
kldload: an error occurred while loading module e6000sw.ko. Please check dmesg(8) for more details.

The dependent modules need to list their intentionally exported symbols in EXPORT_SYMS
Comment 1 Ed Maste freebsd_committer freebsd_triage 2025-11-28 18:03:30 UTC 
Same issue with miiproxy.ko

# kldload miiproxy.ko
link_elf_obj: symbol mdio_readreg_desc undefined
linker_load_file: /boot/kernel/miiproxy.ko - unsupported file type
kldload: an error occurred while loading module miiproxy.ko. Please check dmesg(8) for more details.