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 5B25C1DFCE for ; Sun, 11 Feb 2024 18:56:43 +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=1707677803; cv=none; b=CW2ZGNJ1i2Omubvq+JIbcoOOtXN3CH/bWXCSejjRxd3uTBvV1OPTDSl4iGCYGQY/N4e1cidXBv1+XFMqIxx6BbolhY/j4A8umICQQdTsjFlSHm9C0NG/wzXY7oLe7yZqR7zj+Y6173lBs8SKhOG6Jyz0EHaMku9iusFsQNsodD8= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1707677803; c=relaxed/simple; bh=E4r5wnaIPjmck0ED0OBUuLeqkpq/tzDkdYBoiph/mvc=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=s9/xF0/LctaVGAqSrLmK3L39KAda5lTjMuHEu9A7aaITgKkWVUi60yEcxkkNkQC0Feu/08yN+WXvWH0Ci3FtWzGwfG1gbY47+91SLSirhayJmIBPibJ3Phfnij6zUq+cnCSN+opxaG0d0PW9WgtP7F8CRonxEjZQ7AnnoZa4vMM= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=qJFH2smH; 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="qJFH2smH" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 3793BC433C7; Sun, 11 Feb 2024 18:56:42 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1707677802; bh=E4r5wnaIPjmck0ED0OBUuLeqkpq/tzDkdYBoiph/mvc=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=qJFH2smHE/fNrFNyrVsoNf4/SMW+OaHdSfL5SHPdBYgKyy/hqGxxzrkqO+eD4R19r IOBV1A+l1trKnWEgTwXmXyIYid5SPDopLJNPHFwB2Mms6rUGNk300iholtXoA+EHnY g36CDE3WmM9f91unc9/kT7u3aUSy95cSPl6TIhUswO3vU7UcOoY6RAWUGUdRH8Zb5a FA7T1S1FYQMIS80IIt9uHNdKb6P4pjgkzE+xCQqnkeIgHU0HnqDFoZV/bwTNdDuo4Y Y+GN3RqkjhQ5tK6nfjzykr3kQ5JGRniKDCbHrmPStrMhLrTuzUBRK7y7KXRn9f5Bzb Mh4PR3SLo7nKg== Date: Sun, 11 Feb 2024 19:56:39 +0100 From: Alejandro Colomar To: =?utf-8?B?0L3QsNCx?= Cc: linux-man@vger.kernel.org Subject: Re: [PATCH] pthread_create.3: re-do the architecture/default stack size mapping Message-ID: References: <4wwe76cvuczjn57bzw7wd4derfaufcgrxr5skvlu25wvwecmmh@tarta.nabijaczleweli.xyz> 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="5X9OH0YX/vmqotUU" Content-Disposition: inline In-Reply-To: <4wwe76cvuczjn57bzw7wd4derfaufcgrxr5skvlu25wvwecmmh@tarta.nabijaczleweli.xyz> --5X9OH0YX/vmqotUU Content-Type: text/plain; protected-headers=v1; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Date: Sun, 11 Feb 2024 19:56:39 +0100 From: Alejandro Colomar To: =?utf-8?B?0L3QsNCx?= Cc: linux-man@vger.kernel.org Subject: Re: [PATCH] pthread_create.3: re-do the architecture/default stack size mapping Hi =D0=BD=D0=B0=D0=B1, On Thu, Feb 08, 2024 at 09:43:21PM +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 =E2=80=92 they aren't relevant to any modern reader. >=20 > Signed-off-by: Ahelenia Ziemia=C5=84ska > --- > 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. Why capitalize POWER and omit PC? Other than that, LGTM. Thanks for the patch. Have a lovely day! Alex > .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. --5X9OH0YX/vmqotUU Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEE6jqH8KTroDDkXfJAnowa+77/2zIFAmXJGGcACgkQnowa+77/ 2zJ/nxAAmzxwHGBYe5A3mFH+dpG+/1vtam9N2TxyKw45UQ1IsV9bPSdgQoa+3rmo oyDJU7gUii5mUNOYg5mlU5pBRAwD4jdel1BCaLKY6NlXoWLqxJyd3m+7W2Y7wiwR tgAyy9oDqhxWfJxmNY8PPeGuU8hvWQ7GyaI5zNyjNQh9t6Rk1AGpHmvZvLGjzBOV ZZJANVVyfLQhv2Tbc3/LNJ55Fxuqt3njcbk9V9ZLgfjgi4rUzt3LqLOzeFzkrRWN 1IRUQ/3lQIbEqdsRXUtEsnu0iCJ+M8SYjGzPTXhv6V00d4Z+L1RJadrUA9qLvKYV gItVq8AG29+ZJ/M6BxZxtRmDfCukjyqmpPwYRnwkr3H7tmL7tIsXjdXRlz0D95j+ e0jpjhnY7dmCLCZRZ3f+USRTrUqawIjttEa+NMHSk8kbBeNSALZ0DDsdqkzQ9zDm dfkD6oqX1TuRx2edb+1p5jiJ2BKyN/C2NfL3sv4Mt2ANuox5oO1JlW7xy3NzrFSn 7Tsh8MkRNa06uXljO+VhAXEiJe5ZQUPQEr8kTj68tp3+gmtM5pLV23Toz7yPpDZ2 RdLJBf+Jx1/phPXvSvNkgm8biuapJWkftMKBog7n225qvdLtBAWi3ZXyV7L9Wn7T nxR/h6N8kuGy5xrYPNYRG/TLtBguQxeGGBAFXrlcJTygMRvfMB0= =dYxO -----END PGP SIGNATURE----- --5X9OH0YX/vmqotUU--