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Date: Fri, 21 Jun 2024 10:54:08 +0200
From: John Paul Adrian Glaubitz <glaubitz@...sik.fu-berlin.de>
To: Arnd Bergmann <arnd@...db.de>, LEROY Christophe
 <christophe.leroy2@...soprasteria.com>, Helge Deller <deller@....de>, Arnd
 Bergmann <arnd@...nel.org>, Linux-Arch <linux-arch@...r.kernel.org>,
 "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Cc: Rich Felker <dalias@...c.org>, Andreas Larsson <andreas@...sler.com>, 
 guoren <guoren@...nel.org>, Christophe Leroy <christophe.leroy@...roup.eu>,
 "H. Peter Anvin" <hpa@...or.com>, "sparclinux@...r.kernel.org"
 <sparclinux@...r.kernel.org>,  "linux-s390@...r.kernel.org"
 <linux-s390@...r.kernel.org>, "linux-sh@...r.kernel.org"
 <linux-sh@...r.kernel.org>, "linux-csky@...r.kernel.org"
 <linux-csky@...r.kernel.org>, "Naveen N. Rao" <naveen.n.rao@...ux.ibm.com>,
  Heiko Carstens <hca@...ux.ibm.com>, "musl@...ts.openwall.com"
 <musl@...ts.openwall.com>, Nicholas Piggin <npiggin@...il.com>, Alexander
 Viro <viro@...iv.linux.org.uk>, LTP List <ltp@...ts.linux.it>, Brian Cain
 <bcain@...cinc.com>, Christian Brauner <brauner@...nel.org>, Thomas
 Bogendoerfer <tsbogend@...ha.franken.de>, Xi Ruoyao
 <libc-alpha@...rceware.org>, "linux-parisc@...r.kernel.org"
 <linux-parisc@...r.kernel.org>, "linux-mips@...r.kernel.org"
 <linux-mips@...r.kernel.org>, Adhemerval Zanella Netto
 <adhemerval.zanella@...aro.org>, "linux-hexagon@...r.kernel.org"
 <linux-hexagon@...r.kernel.org>, "linux-fsdevel@...r.kernel.org"
 <linux-fsdevel@...r.kernel.org>, "linuxppc-dev@...ts.ozlabs.org"
 <linuxppc-dev@...ts.ozlabs.org>, "David S . Miller" <davem@...emloft.net>
Subject: Re: [PATCH 07/15] parisc: use generic sys_fanotify_mark
 implementation

Hi,

On Fri, 2024-06-21 at 08:28 +0200, Arnd Bergmann wrote:
> It's more likely to be related to the upward growing stack.
> I checked the gcc sources and found that out of the 50 supported
> architectures, ARGS_GROW_DOWNWARD is set on everything except
> for gcn, stormy16 and  32-bit parisc. The other two are
> little-endian though. STACK_GROWS_DOWNWARD in turn is set on
> everything other than parisc (both 32-bit and 64-bit).

Wait a second! Does that mean that on 64-bit PA-RISC, the stack is
actually growing downwards? If yes, that would be a strong argument
for creating a 64-bit PA-RISC port in Debian and replacing the 32-bit
port.

Adrian

-- 
 .''`.  John Paul Adrian Glaubitz
: :' :  Debian Developer
`. `'   Physicist
  `-    GPG: 62FF 8A75 84E0 2956 9546  0006 7426 3B37 F5B5 F913

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