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From d9238276001fdb2174dc1c74d3b7566ab851d4b8 Mon Sep 17 00:00:00 2001
Message-ID: <d9238276001fdb2174dc1c74d3b7566ab851d4b8.1772575988.git.contact@simendsjo.me>
From: =?UTF-8?q?Simen=20Endsj=C3=B8?= <contact@simendsjo.me>
Date: Tue, 3 Mar 2026 23:08:56 +0100
Subject: [PATCH] fix(types): add 32 additional bytes for mq-attr on linux.
mq-attr is defined as *at least* 32 bytes, but linux reserves an
additional 32 bytes for future use.
SBCL 2.6.1 and 2.6.2 crashes when running the test suite.
Ref
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/include/uapi/linux/mqueue.h#n33
- https://bugs.launchpad.net/sbcl/+bug/2143167
---
src/types.lisp | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/src/types.lisp b/src/types.lisp
index 206bc6c..c6cb846 100644
--- a/src/types.lisp
+++ b/src/types.lisp
@@ -70,7 +70,8 @@ non-blocking flag."
(mq-flags mq-flags)
(mq-maxmsg :long)
(mq-msgsize :long)
- (mq-curmsgs :long))
+ (mq-curmsgs :long)
+ #+linux (%reserved :long :count 4))
(defcstruct timespec
"Timespec CStruct that specifies time in seconds and nanosecands."
--
2.52.0
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