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From: Helge Deller <deller@gmx.de>
To: Joel Stanley <joel@jms.id.au>, Laurent Vivier <laurent@vivier.eu>,
	Richard Henderson <richard.henderson@linaro.org>,
	qemu-devel@nongnu.org
Cc: Helge Deller <deller@gmx.de>, Paolo Bonzini <pbonzini@redhat.com>,
	Akihiko Odaki <akihiko.odaki@daynix.com>
Subject: Re: [PATCH v6 0/8] linux-user: brk fixes
Date: Wed, 2 Aug 2023 08:10:16 +0200	[thread overview]
Message-ID: <ZMnzSBlYnO/VeywC@p100> (raw)
In-Reply-To: <CACPK8XfGNcDEPEsJkcfPjfhCx76ioYr4uOmXK6ziwb9iRwBaaA@mail.gmail.com>

* Joel Stanley <joel@jms.id.au>:
> On Tue, 1 Aug 2023 at 23:28, Helge Deller <deller@gmx.de> wrote:
> >
> > This patch series is a fix-up for some current problems
> > regarding heap memory / brk handling in qemu which happens
> > on some 32-bit platforms, e.g. problems loading static
> > binaries.
> >
> > This series includes the 5 patches from Akihiko Odaki
> > with some additional fixes and cleanups by me.
>
> This has the same segfault as the branch that I previously tested,
> when running on a ppc64le host..
>
> As a reminder, the ppc64le machine (normally, and does in this case)
> uses a 64K page size. I think this is a detail that is missing from
> your chroot testing.

Could you try with this hunk on top of the patch series ?

Helge

diff --git a/linux-user/elfload.c b/linux-user/elfload.c
index 8f5a79b537..a61e3d1080 100644
--- a/linux-user/elfload.c
+++ b/linux-user/elfload.c
@@ -3178,7 +3178,7 @@ static void load_elf_image(const char *image_name, int image_fd,
     info->start_data = -1;
     info->end_data = 0;
     /* possible start for brk is behind all sections of this ELF file. */
-    info->brk = TARGET_PAGE_ALIGN(load_offset + hiaddr);
+    info->brk = HOST_PAGE_ALIGN(load_offset + hiaddr);
     info->elf_flags = ehdr->e_flags;

     prot_exec = PROT_EXEC;


      reply	other threads:[~2023-08-02  6:10 UTC|newest]

Thread overview: 26+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-08-01 23:27 [PATCH v6 0/8] linux-user: brk fixes Helge Deller
2023-08-01 23:27 ` [PATCH v6 1/8] linux-user: Unset MAP_FIXED_NOREPLACE for host Helge Deller
2023-08-01 23:40   ` Richard Henderson
2023-08-01 23:27 ` [PATCH v6 2/8] linux-user: Do not call get_errno() in do_brk() Helge Deller
2023-08-01 23:27 ` [PATCH v6 3/8] linux-user: Use MAP_FIXED_NOREPLACE for do_brk() Helge Deller
2023-08-01 23:27 ` [PATCH v6 4/8] linux-user: Do nothing if too small brk is specified Helge Deller
2023-08-01 23:27 ` [PATCH v6 5/8] linux-user: Do not align brk with host page size Helge Deller
2023-08-01 23:27 ` [PATCH v6 6/8] linux-user: Show heap address in /proc/pid/maps Helge Deller
2023-08-02  5:41   ` Philippe Mathieu-Daudé
2023-08-02  6:07     ` Helge Deller
2023-08-01 23:27 ` [PATCH v6 7/8] linux-user: Optimize memory layout for static and dynamic executables Helge Deller
2023-08-02 18:25   ` Richard Henderson
2023-08-02 19:51     ` Helge Deller
2023-08-02 19:57       ` Richard Henderson
2023-08-02 20:06         ` Helge Deller
2023-08-01 23:27 ` [PATCH v6 8/8] linux-user: Load pie executables at upper memory Helge Deller
2023-08-02  7:49   ` Akihiko Odaki
2023-08-02  8:42     ` Helge Deller
2023-08-02  8:44       ` Akihiko Odaki
2023-08-02  9:34         ` Helge Deller
2023-08-02  9:58           ` Akihiko Odaki
2023-08-02 10:35             ` Helge Deller
2023-08-02 18:36   ` Richard Henderson
2023-08-02 19:57     ` Helge Deller
2023-08-02  2:21 ` [PATCH v6 0/8] linux-user: brk fixes Joel Stanley
2023-08-02  6:10   ` Helge Deller [this message]

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