Bug 219685 - [REGRESSION] WARNING: WARNING: Bad or missing .orc_unwind table. Disabling unwinder.
Summary: [REGRESSION] WARNING: WARNING: Bad or missing .orc_unwind table. Disabling u...
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 10:41 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 10:42 UTC, Klaus Kusche 		Details
Add an attachment (proposed patch, testcase, etc.)

Description Klaus Kusche 2025-01-12 10:41:53 UTC 
Gentoo linux on x86_64, kernel gentoo-sources 6.12.9,
locally compiled with clang+lld 19.1.6 and full lto, .config attached,
CONFIG_UNWINDER_ORC=y.

dmesg says "WARNING: WARNING: Bad or missing .orc_unwind table.  Disabling unwinder." when booting.

The message was *not* present with my previous 6.12.7 and clang 18.*.
I don't know if linux 6.12.7-->9 or clang 18-->19 caused it,
I did both at the same time and don't have the old versions any longer.
Comment 1 Klaus Kusche 2025-01-12 10:42:46 UTC 
Created attachment 307478 [details]
.config
Comment 2 Klaus Kusche 2025-01-12 11:02:04 UTC 
Rechecked old logs: Message occurred on 6.12.7-->8 and clang 18-->19,
not on 6.12.7-->9.
Comment 3 Artem S. Tashkinov 2025-01-13 07:54:48 UTC 
This bug report will die here.

Find the relevant people, send your message to LKML and CC them.

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