From: Vegard Nossum <vegard.nossum@oracle.com>
To: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>,
Andy Lutomirski <luto@kernel.org>,
Thomas Gleixner <tglx@linutronix.de>,
Ingo Molnar <mingo@redhat.com>, Borislav Petkov <bp@alien8.de>,
Dave Hansen <dave.hansen@linux.intel.com>,
x86@kernel.org, "H. Peter Anvin" <hpa@zytor.com>,
Peter Zijlstra <peterz@infradead.org>,
Ard Biesheuvel <ardb@kernel.org>,
"Paul E. McKenney" <paulmck@kernel.org>,
Josh Poimboeuf <jpoimboe@kernel.org>,
Xiongwei Song <xiongwei.song@windriver.com>,
Xin Li <xin3.li@intel.com>,
"Mike Rapoport (IBM)" <rppt@kernel.org>,
Brijesh Singh <brijesh.singh@amd.com>,
Michael Roth <michael.roth@amd.com>,
Tony Luck <tony.luck@intel.com>,
Alexey Kardashevskiy <aik@amd.com>,
Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Jonathan Corbet <corbet@lwn.net>,
Sohil Mehta <sohil.mehta@intel.com>,
Ingo Molnar <mingo@kernel.org>,
Pawan Gupta <pawan.kumar.gupta@linux.intel.com>,
Daniel Sneddon <daniel.sneddon@linux.intel.com>,
Kai Huang <kai.huang@intel.com>,
Sandipan Das <sandipan.das@amd.com>,
Breno Leitao <leitao@debian.org>,
Rick Edgecombe <rick.p.edgecombe@intel.com>,
Alexei Starovoitov <ast@kernel.org>, Hou Tao <houtao1@huawei.com>,
Juergen Gross <jgross@suse.com>, Kees Cook <kees@kernel.org>,
Eric Biggers <ebiggers@google.com>,
Jason Gunthorpe <jgg@ziepe.ca>,
"Masami Hiramatsu (Google)" <mhiramat@kernel.org>,
Andrew Morton <akpm@linux-foundation.org>,
Luis Chamberlain <mcgrof@kernel.org>,
Yuntao Wang <ytcoode@gmail.com>,
Rasmus Villemoes <linux@rasmusvillemoes.dk>,
Christophe Leroy <christophe.leroy@csgroup.eu>,
Tejun Heo <tj@kernel.org>, Changbin Du <changbin.du@huawei.com>,
Huang Shijie <shijie@os.amperecomputing.com>,
Geert Uytterhoeven <geert+renesas@glider.be>,
Namhyung Kim <namhyung@kernel.org>,
Arnaldo Carvalho de Melo <acme@redhat.com>,
linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-efi@vger.kernel.org, linux-mm@kvack.org
Subject: Re: [PATCHv7 00/16] x86: Enable Linear Address Space Separation support
Date: Thu, 26 Jun 2025 11:22:04 +0200 [thread overview]
Message-ID: <9b1c5e43-ff48-4af8-9ec8-1c1dc2b902ae@oracle.com> (raw)
In-Reply-To: <20250625125112.3943745-1-kirill.shutemov@linux.intel.com>
On 25/06/2025 14:50, Kirill A. Shutemov wrote:
> Linear Address Space Separation (LASS) is a security feature that intends to
> prevent malicious virtual address space accesses across user/kernel mode.
I applied these patches on top of tip/master and when I try to boot it
fails with errno 12 (ENOMEM - Cannot allocate memory):
[ 1.517526] Kernel panic - not syncing: Requested init /bin/bash
failed (error -12).
Just using standard defconfig and booting in qemu/KVM with 2G RAM.
Bisect lands on "x86/asm: Introduce inline memcpy and memset".
Thanks,
Vegard
next prev parent reply other threads:[~2025-06-26 9:22 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20250625125112.3943745-1-kirill.shutemov@linux.intel.com>
[not found] ` <20250625125112.3943745-3-kirill.shutemov@linux.intel.com>
2025-06-25 12:55 ` [PATCH] x86/vsyscall: Do not require X86_PF_INSTR to emulate vsyscall Kirill A. Shutemov
2025-06-26 9:22 ` Vegard Nossum [this message]
2025-06-26 9:35 ` [PATCHv7 00/16] x86: Enable Linear Address Space Separation support Vegard Nossum
2025-06-26 12:47 ` Kirill A. Shutemov
2025-06-26 13:15 ` Vegard Nossum
2025-06-29 11:40 ` David Laight
[not found] ` <20250625125112.3943745-5-kirill.shutemov@linux.intel.com>
2025-06-26 13:49 ` [PATCHv7 03/16] x86/alternatives: Disable LASS when patching kernel alternatives Peter Zijlstra
2025-06-26 14:18 ` Dave Hansen
2025-06-27 10:27 ` Kirill A. Shutemov
[not found] ` <20250625125112.3943745-15-kirill.shutemov@linux.intel.com>
2025-06-26 17:57 ` [PATCHv7 13/16] x86/traps: Handle LASS thrown #SS Xin Li
2025-06-27 10:31 ` Kirill A. Shutemov
2025-06-30 8:30 ` David Laight
2025-06-30 9:50 ` Kirill A. Shutemov
[not found] ` <20250625125112.3943745-2-kirill.shutemov@linux.intel.com>
2025-06-26 15:22 ` [PATCHv7 01/16] x86/cpu: Enumerate the LASS feature bits Borislav Petkov
2025-06-26 18:00 ` Xin Li
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