Hello,

on sh4, libuv1 with io_uring support enabled often causes cmake to crash [1]:
--- libuv1-1.50.0.orig/src/unix/linux.c
+++ libuv1-1.50.0/src/unix/linux.c
@@ -470,6 +470,8 @@ static int uv__use_io_uring(uint32_t fla
 #elif defined(__powerpc64__) || defined(__ppc64__)
   /* See https://github.com/libuv/libuv/issues/4283. */
   return 0; /* Random SIGSEGV in signal handler. */
+#elif defined(__sh__)
+  return 0;
 #else
   /* Ternary: unknown=0, yes=1, no=-1 */
   static _Atomic int use_io_uring;

Thus, could you please include this patch for the next libuv1 to fix these crashes?

Thanks,
Adrian

Le mer. 20 août 2025 à 08:43, John Paul Adrian Glaubitz <
glaubitz@physik.fu-berlin.de> a écrit :

Done,
I suppose it would be nice to report that sh4 needs the same fix as ppc64
on
https://github.com/libuv/libuv/issues/4283
?

If you look at the code in question, you can see that there are separate
lines for each architectures which is okay since libuv is crashing for
different reasons.

Although I'm surprised this doesn't seem to be a problem on powerpc32.

Adrian

Is this actually a different bug than powerpc is seeing? Because that
bug report _also_ says they're seeing crashes in cmake. Possibly this
should just add a third || defined() to the previous line...

We believe that the bug you reported is fixed in the latest version of
libuv1, which is due to be installed in the Debian FTP archive.

A summary of the changes between this version and the previous one is
attached.

Thank you for reporting the bug, which will now be closed.  If you
have further comments please address them to 1111616@bugs.debian.org,
and the maintainer will reopen the bug report if appropriate.

Debian distribution maintenance software
pp.
Jérémy Lal <kapouer@melix.org> (supplier of updated libuv1 package)

(This message was generated automatically at their request; if you
believe that there is a problem with it please contact the archive
administrators by mailing ftpmaster@ftp-master.debian.org)
Format: 1.8
Date: Sun, 24 Aug 2025 17:48:29 +0200
Source: libuv1
Architecture: source
Version: 1.51.0-2
Distribution: unstable
Urgency: medium
Maintainer: Dominique Dumont <dod@debian.org>
Changed-By: Jérémy Lal <kapouer@melix.org>
Closes: 1111616
Changes:
 libuv1 (1.51.0-2) unstable; urgency=medium
 .
   [ Dominique Dumont ]
   * control: add kapouer as uploader, rm lucab
 .
   [ Jérémy Lal ]
   * Release to unstable.
   * patch: disable io_uring on sh4. Closes: #1111616.
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