Bug 219686 - [Regression clang 18-->19]: Two new link warnings with lto
Summary: [Regression clang 18-->19]: Two new link warnings with lto
Status: RESOLVED ANSWERED
Alias: None
Product: Linux
Classification: Unclassified
Component: Kernel (show other bugs)
Hardware: All Linux
: P3 normal
Assignee: Virtual assignee for kernel bugs
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2025-01-12 11:07 UTC by Klaus Kusche
Modified: 2025-01-13 07:54 UTC (History)
0 users

See Also:
Kernel Version:
Subsystem:
Regression: No
Bisected commit-id:

Attachments
.config (148.32 KB, text/plain)
2025-01-12 11:08 UTC, Klaus Kusche 		Details
Add an attachment (proposed patch, testcase, etc.)

Description Klaus Kusche 2025-01-12 11:07:53 UTC 
Gentoo linux on x86_64, kernel gentoo-sources 6.12.[89],
locally compiled with clang+lld and full lto, .config attached.

When switching from clang+lld 18.* to 19.1.6,
I got two new warnings in the lto link step when building the kernel:

  LD      vmlinux.o
ld.lld: warning: <unknown>:0:0: stack frame size (2056) exceeds limit (2048) in function 'dml_core_mode_support'
vmlinux.o: warning: objtool: start_unlink_intr+0xb7: can't find switch jump table
Comment 1 Klaus Kusche 2025-01-12 11:08:18 UTC 
Created attachment 307479 [details]
.config
Comment 2 Artem S. Tashkinov 2025-01-13 07:54:17 UTC 
This bug report will die here.

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