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From: Roberto Sassu <>
Cc: Richard Weinberger <>,
	Anton Ivanov <>,
	Johannes Berg <>
Subject: Cannot compile UML in Ubuntu 20.04.5 anymore
Date: Fri, 03 Mar 2023 09:34:36 +0100	[thread overview]
Message-ID: <> (raw)


it looks like one recent commit causes the kernel build to break.

  GEN     scripts/gdb/linux/
In file included from /usr/include/stdlib.h:1013,
                 from arch/um/os-Linux/helper.c:6:
/usr/include/x86_64-linux-gnu/bits/stdlib-float.h: In function ‘atof’:
/usr/include/x86_64-linux-gnu/bits/stdlib-float.h:26:1: error: SSE register return with SSE disabled
   26 | {
      | ^
  CC      init/noinitramfs.o

It works again by reverting commit 884981867947 ("rust: arch/um:
Disable FP/SIMD instruction to match x86").

$ cat /proc/cpuinfo


processor	: 31
vendor_id	: AuthenticAMD
cpu family	: 23
model		: 49
model name	: AMD Ryzen Threadripper PRO 3955WX 16-Cores



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             reply	other threads:[~2023-03-03  8:37 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-03-03  8:34 Roberto Sassu [this message]
2023-03-04  4:35 ` Cannot compile UML in Ubuntu 20.04.5 anymore David Gow
2023-03-06 17:05   ` Roberto Sassu
2023-03-17 16:58   ` SeongJae Park

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