[Bug 264094] VNET and DPCPU defined in modules panic on use on arm64 after LLVM 14 import due to new linker relaxation
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Date: Tue, 01 Aug 2023 20:05:18 UTC
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=264094
--- Comment #32 from commit-hook@FreeBSD.org ---
A commit in branch releng/13.2 references this bug:
URL:
https://cgit.FreeBSD.org/src/commit/?id=e3e6fc3713229e5075473b9e0e9a66699e8a322b
commit e3e6fc3713229e5075473b9e0e9a66699e8a322b
Author: Dimitry Andric <dim@FreeBSD.org>
AuthorDate: 2023-07-23 13:48:36 +0000
Commit: Mark Johnston <markj@FreeBSD.org>
CommitDate: 2023-08-01 19:50:47 +0000
Work around VNET and DPCPU related panics on aarch64
lld >= 14 and recent GNU ld can relax adrp+add and adrp+ldr
instructions, which breaks VNET and DPCPU when used in modules.
Until VNET and DPCPU can be fixed to deal with these relaxed
instructions, disable linker relaxation for now.
PR: 264094
Reviewed by: markj
MFC after: 3 days
Differential Revision: https://reviews.freebsd.org/D41156
(cherry picked from commit 80e4ac2964a11edef456a15b77e43aadeaf273a2)
(cherry picked from commit f1f27dfa4ad9da53fcdfc6aae644fab83bda4e76)
Approved by: so
Security: FreeBSD-EN-23:08.vnet
sys/conf/kmod.mk | 7 +++++++
1 file changed, 7 insertions(+)
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