Re: [PATCH v5 7/8] execmem: add support for cache of large ROX pages

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Subject: Re: [PATCH v5 7/8] execmem: add support for cache of large ROX pages
From: Luis Chamberlain <mcgrof@xxxxxxxxxx>
Date: Mon, 14 Oct 2024 21:09:49 -0700
Cc: Mike Rapoport <rppt@xxxxxxxxxx>, Christoph Hellwig <hch@xxxxxxxxxxxxx>, Petr Pavlu <petr.pavlu@xxxxxxxx>, Sami Tolvanen <samitolvanen@xxxxxxxxxx>, Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>, Andreas Larsson <andreas@xxxxxxxxxxx>, Andy Lutomirski <luto@xxxxxxxxxx>, Ard Biesheuvel <ardb@xxxxxxxxxx>, Arnd Bergmann <arnd@xxxxxxxx>, Borislav Petkov <bp@xxxxxxxxx>, Brian Cain <bcain@xxxxxxxxxxx>, Catalin Marinas <catalin.marinas@xxxxxxx>, Christophe Leroy <christophe.leroy@xxxxxxxxxx>, Dave Hansen <dave.hansen@xxxxxxxxxxxxxxx>, Dinh Nguyen <dinguyen@xxxxxxxxxx>, Geert Uytterhoeven <geert@xxxxxxxxxxxxxx>, Guo Ren <guoren@xxxxxxxxxx>, Helge Deller <deller@xxxxxx>, Huacai Chen <chenhuacai@xxxxxxxxxx>, Ingo Molnar <mingo@xxxxxxxxxx>, Johannes Berg <johannes@xxxxxxxxxxxxxxxx>, John Paul Adrian Glaubitz <glaubitz@xxxxxxxxxxxxxxxxxxx>, Kent Overstreet <kent.overstreet@xxxxxxxxx>, "Liam R. Howlett" <Liam.Howlett@xxxxxxxxxx>, Mark Rutland <mark.rutland@xxxxxxx>, Masami Hiramatsu <mhiramat@xxxxxxxxxx>, Matt Turner <mattst88@xxxxxxxxx>, Max Filippov <jcmvbkbc@xxxxxxxxx>, Michael Ellerman <mpe@xxxxxxxxxxxxxx>, Michal Simek <monstr@xxxxxxxxx>, Oleg Nesterov <oleg@xxxxxxxxxx>, Palmer Dabbelt <palmer@xxxxxxxxxxx>, Peter Zijlstra <peterz@xxxxxxxxxxxxx>, Richard Weinberger <richard@xxxxxx>, Russell King <linux@xxxxxxxxxxxxxxx>, Song Liu <song@xxxxxxxxxx>, Stafford Horne <shorne@xxxxxxxxx>, Steven Rostedt <rostedt@xxxxxxxxxxx>, Thomas Bogendoerfer <tsbogend@xxxxxxxxxxxxxxxx>, Thomas Gleixner <tglx@xxxxxxxxxxxxx>, Uladzislau Rezki <urezki@xxxxxxxxx>, Vineet Gupta <vgupta@xxxxxxxxxx>, Will Deacon <will@xxxxxxxxxx>, bpf@xxxxxxxxxxxxxxx, linux-alpha@xxxxxxxxxxxxxxx, linux-arch@xxxxxxxxxxxxxxx, linux-arm-kernel@xxxxxxxxxxxxxxxxxxx, linux-csky@xxxxxxxxxxxxxxx, linux-hexagon@xxxxxxxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx, linux-m68k@xxxxxxxxxxxxxxx, linux-mips@xxxxxxxxxxxxxxx, linux-mm@xxxxxxxxx, linux-modules@xxxxxxxxxxxxxxx, linux-openrisc@xxxxxxxxxxxxxxx, linux-parisc@xxxxxxxxxxxxxxx, linux-riscv@xxxxxxxxxxxxxxxxxxx, linux-sh@xxxxxxxxxxxxxxx, linux-snps-arc@xxxxxxxxxxxxxxxxxxx, linux-trace-kernel@xxxxxxxxxxxxxxx, linux-um@xxxxxxxxxxxxxxxxxxx, linuxppc-dev@xxxxxxxxxxxxxxxx, loongarch@xxxxxxxxxxxxxxx, sparclinux@xxxxxxxxxxxxxxx, x86@xxxxxxxxxx
In-reply-to: <Zw1uBBcG-jAgxF_t@bombadil.infradead.org>
References: <20241009180816.83591-1-rppt@kernel.org> <20241009180816.83591-8-rppt@kernel.org> <Zwd7GRyBtCwiAv1v@infradead.org> <ZwfPPZrxHzQgYfx7@kernel.org> <ZwjXz0dz-RldVNx0@infradead.org> <ZwuIPZkjX0CfzhjS@kernel.org> <20241013202626.81f430a16750af0d2f40d683@linux-foundation.org> <Zw1uBBcG-jAgxF_t@bombadil.infradead.org>

Mike, please run this with kmemleak enabled and running, and also try to get
tools/testing/selftests/kmod/kmod.sh to pass. I run into silly boot issues
with just a guest.

  Luis

Follow-Ups:
- Re: [PATCH v5 7/8] execmem: add support for cache of large ROX pages
  - From: Mike Rapoport

References:
- [PATCH v5 0/8] x86/module: use large ROX pages for text allocations
  - From: Mike Rapoport
- [PATCH v5 7/8] execmem: add support for cache of large ROX pages
  - From: Mike Rapoport
- Re: [PATCH v5 7/8] execmem: add support for cache of large ROX pages
  - From: Christoph Hellwig
- Re: [PATCH v5 7/8] execmem: add support for cache of large ROX pages
  - From: Mike Rapoport
- Re: [PATCH v5 7/8] execmem: add support for cache of large ROX pages
  - From: Christoph Hellwig
- Re: [PATCH v5 7/8] execmem: add support for cache of large ROX pages
  - From: Mike Rapoport
- Re: [PATCH v5 7/8] execmem: add support for cache of large ROX pages
  - From: Andrew Morton
- Re: [PATCH v5 7/8] execmem: add support for cache of large ROX pages
  - From: Luis Chamberlain

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