From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id DF15F1755F for ; Sun, 11 Feb 2024 23:50:23 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1707695424; cv=none; b=USJWU3Y3q/1fltqpp7e0TCSlU/LpAM0f3Ph0s2A3sygO4jvMTkivvfNcSEkxYgiAepVQeOZomNZSvWZI8Pf4A+k/DjunPbYAqJ6t7wn/SYJaHu46i6v64Uh23oVs4vvl932B1RSEapUXyXav/CpMef/6zpv1/R/YDxA7v8Pmw+Q= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1707695424; c=relaxed/simple; bh=Nw9w35XDZkwDMKaJ/gRE5zMRVvNEQcJGTPqdG9dTMMY=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=FzfmdN+F2Vpm7XmF1qMa9Mo8nge++QwuFB3tYib5IHt6FlTlfMFXY1Y/78pYlnO/LsHrP/dITNFqJFcqS3I8JSKZVgDR+9LyHsOt8gbwAQZYOPXCZGk0zQQrNXqvndHzkoMYFcaEMbkUwtDp+XHvZxEbLMFPnbC2Bk/5Ex1UBUA= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=VN0Cl0cd; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="VN0Cl0cd" Received: by smtp.kernel.org (Postfix) with ESMTPSA id B60B5C433C7; Sun, 11 Feb 2024 23:50:22 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1707695423; bh=Nw9w35XDZkwDMKaJ/gRE5zMRVvNEQcJGTPqdG9dTMMY=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=VN0Cl0cdmBY3NWVa5BEc9ra7XOJZhRzHtYkmkkYMamiGyuaQQ2RGpHKb97MwB5CsQ x3OT2O6L/qN3YC1bwq2PpCKeHaESf9VfXLcRIZxdIFSVf/R6d9WmFH2UMT23S6HNnm sdK2GAuMIS6zJY7TdQvI+J+UmJrvw4i/qV2kYSQpoYL5ckAYT1sH4I3G9uj9XKcFaD x84O8sbVDn4jTErd2ATFVEaVp2Use6UahN6TYvObe+N1L5P5OQ8xi1Skm/9bmeirqz gCHA945Ct4qxFvOqaOenza5Nx4nVDFXC4A58Qr2D6HfxRFyzFl5LIghYWqSHrFBMaF 2gbu3Q7T/1iyg== Date: Mon, 12 Feb 2024 00:50:20 +0100 From: Alejandro Colomar To: =?utf-8?B?0L3QsNCx?= Cc: linux-man@vger.kernel.org Subject: Re: [PATCH v2] pthread_create.3: re-do the architecture/default stack size mapping Message-ID: References: Precedence: bulk X-Mailing-List: linux-man@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="MCgZRtfq8oCSkMTe" Content-Disposition: inline In-Reply-To: --MCgZRtfq8oCSkMTe Content-Type: text/plain; protected-headers=v1; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Date: Mon, 12 Feb 2024 00:50:20 +0100 From: Alejandro Colomar To: =?utf-8?B?0L3QsNCx?= Cc: linux-man@vger.kernel.org Subject: Re: [PATCH v2] pthread_create.3: re-do the architecture/default stack size mapping Hi =D0=BD=D0=B0=D0=B1, On Sun, Feb 11, 2024 at 11:27:46PM +0100, =D0=BD=D0=B0=D0=B1 wrote: > Currently, the page lists 2 of the 3 x86 architectures, no ARM(!), > old PowerPC only, and most egregiously itanium, > which linux doesn't target. >=20 > Per glibc 2.38: > $ git grep ARCH_STACK_DEFAULT_SIZE > aarch64 #define ARCH_STACK_DEFAULT_SIZE (2 * 1024 * 1024) > arc #define ARCH_STACK_DEFAULT_SIZE (2 * 1024 * 1024) > arm #define ARCH_STACK_DEFAULT_SIZE (2 * 1024 * 1024) > csky #define ARCH_STACK_DEFAULT_SIZE (2 * 1024 * 1024) > loongarch #define ARCH_STACK_DEFAULT_SIZE (2 * 1024 * 1024) > m68k #define ARCH_STACK_DEFAULT_SIZE (2 * 1024 * 1024) > microblaze #define ARCH_STACK_DEFAULT_SIZE (2 * 1024 * 1024) > mips #define ARCH_STACK_DEFAULT_SIZE (2 * 1024 * 1024) > nios2 #define ARCH_STACK_DEFAULT_SIZE (2 * 1024 * 1024) > or1k #define ARCH_STACK_DEFAULT_SIZE (2 * 1024 * 1024) > riscv #define ARCH_STACK_DEFAULT_SIZE (2 * 1024 * 1024) > s390 #define ARCH_STACK_DEFAULT_SIZE (2 * 1024 * 1024) > sh #define ARCH_STACK_DEFAULT_SIZE (2 * 1024 * 1024) > sparc32 #define ARCH_STACK_DEFAULT_SIZE (2 * 1024 * 1024) > x86 #define ARCH_STACK_DEFAULT_SIZE (2 * 1024 * 1024) >=20 > alpha #define ARCH_STACK_DEFAULT_SIZE (4 * 1024 * 1024) > powerpc #define ARCH_STACK_DEFAULT_SIZE (4 * 1024 * 1024) > sparc64 #define ARCH_STACK_DEFAULT_SIZE (4 * 1024 * 1024) >=20 > hppa #define ARCH_STACK_DEFAULT_SIZE (8 * 1024 * 1024) >=20 > ia64 #define ARCH_STACK_DEFAULT_SIZE (32 * 1024 * 1024) >=20 > I cut PA-RISC and the Alpha. They have 10 and 6 popcon entries, > respectively, and AFAICT they haven't seen a processor released > in over a decade, they aren't relevant to any modern reader. >=20 > Similarly, use "POWER" instead of "PowerPC" =E2=80=92 the consensus brand= ing > is "POWER"+version (POWER8/POWER9); PowerPC is itself a POWER variant > and doesn't really deserve its own special mention, especially in 2024. >=20 > Signed-off-by: Ahelenia Ziemia=C5=84ska Patch applied. Thanks. Have a lovely night! Alex > --- > man3/pthread_create.3 | 19 ++----------------- > 1 file changed, 2 insertions(+), 17 deletions(-) >=20 > diff --git a/man3/pthread_create.3 b/man3/pthread_create.3 > index 66c67a6ff..fd6253bf4 100644 > --- a/man3/pthread_create.3 > +++ b/man3/pthread_create.3 > @@ -200,23 +200,8 @@ .SH NOTES > If the > .B RLIMIT_STACK > resource limit is set to "unlimited", > -a per-architecture value is used for the stack size. > -Here is the value for a few architectures: > -.RS > -.TS > -allbox; > -lb lb > -l r. > -Architecture Default stack size > -i386 2 MB > -IA-64 32 MB > -PowerPC 4 MB > -S/390 2 MB > -Sparc-32 2 MB > -Sparc-64 4 MB > -x86_64 2 MB > -.TE > -.RE > +a per-architecture value is used for the stack size: > +2 MB on most architectures; 4 MB on POWER and Sparc-64. > .SH BUGS > In the obsolete LinuxThreads implementation, > each of the threads in a process has a different process ID. > --=20 > 2.39.2 --=20 Looking for a remote C programming job at the moment. --MCgZRtfq8oCSkMTe Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEE6jqH8KTroDDkXfJAnowa+77/2zIFAmXJXTwACgkQnowa+77/ 2zKFUw//emz2ZIpmPOumzfWcub5TXwb6G66UKERl4EjDW1mBaCmfrW7IBMzjpDtR PmrOdw8lpDrpYSNMfO8DzmMy0eSACtw8l561J3HKZcR2UbbXmnU/5mN4fTc/TrI9 qaWlgPz5THD7dujAyxsyyMxqYIXEJthbCj0vFs4K+Nddq/J3n82niyA8cctFJGh5 414rl0Nwp33SL9vfmkuASiZAaqpcRFB4cJiLfCBqBYulmrr8+V3HCchQcGf5rUly lzeLMhgekY84gOraqiGRu0uegjft5Oka+BgKgAbXrtvt3oAB88URcKR0DSb5MKe4 AgLGWomoPwDyozca0s3Vu0VVTJ5P2ukt5KAVnk/wsr7XmC+UQSbBtObJ7d0IGz8a iroful1o6epnkdzpsy540rTLtWE1qljPyMjUIgsEL4zHcaeDrwZOedEddC/mXIo+ Yn9kwjqt6K08RWQQj9E2qyGX7V3ioMohSkWxXZ1u/xnZJ0dMweC8tfTwrI54aaic czf3lB5BUr451N93d/gcB6X4zpGQdQTZTYDmPleQV4ERVbq6Xaq2IFFufzhwT0js FGWXDtUUV4DP1pj3s4KCn15zjEklh73xlhCCukEkwGlecBcecM7Wi/sfL/qgv3+5 NVbsDCdVpRqxbK8MxgzJga+z8LtWx0qWtz7CFJFR82eIHhXiwk4= =HvE+ -----END PGP SIGNATURE----- --MCgZRtfq8oCSkMTe--