bug#49495: closed (27.2; portable dumper incompatible with 64K pages on aarch64)

[GNU bug Tracking System]

Your message dated Sat, 17 Jul 2021 13:02:25 +0300
with message-id <83fswd45se.fsf@gnu.org>
and subject line Re: bug#49495: 27.2; portable dumper incompatible with 64K 
pages on aarch64
has caused the debbugs.gnu.org bug report #49495,
regarding 27.2; portable dumper incompatible with 64K pages on aarch64
to be marked as done.

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49495: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=49495
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> --- Begin Message ---
>
>
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> Subject: 
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> 27.2; portable dumper incompatible with 64K pages on aarch64
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> Date: 
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> Fri, 09 Jul 2021 18:38:10 +0200
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>
>
>
> I am forwarding a bugreport from Fedora, about the portable dumper
> causing issues when launching Emacs in a RHEL 8 chroot on aarch64:
> (from https://bugzilla.redhat.com/show_bug.cgi?id=1974244)
>
> --8<---------------cut here---------------start------------->8---
> The emacs binary from emacs-nox-27.2-2.fc33.aarch64 cannot start in a chroot on 
> Red Hat Enterprise Linux 8 because it assumes 4K pages:
>
> openat(AT_FDCWD, "/usr/bin/emacs-27.2-nox.pdmp", O_RDONLY|O_CLOEXEC) = 3
> fstat(3, {st_mode=S_IFREG|0644, st_size=10124128, ...}) = 0
> read(3, "DUMPEDGNUEMACS\0\0(\304wp;D\330G%\f\265\337\214\264VO"..., 80) = 80
> mmap(NULL, 10124128, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 
> 0xffff92240000
> mmap(0xffff92240000, 6946816, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED, 3, 
> 0) = 0xffff92240000
> mmap(0xffff928e0000, 90112, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED, 3, 
> 0x6a0000) = 0xffff928e0000
> mmap(0xffff928f6000, 3087200, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED, 3, 
> 0x6b6000) = -1 EINVAL (Invalid argument)
>
> Map offsets and addresses must be a multiple of the page size.
> --8<---------------cut here---------------end--------------->8---
>
>
> Unfortunately, I am not really familiar with Emacs' internals to know
> how to handle this bug report.
>
> Cheers,
>
> Dan
>
>
>
> --- End Message ---
> --- Begin Message ---
>
>
>
> Subject: 
>
> Re: bug#49495: 27.2; portable dumper incompatible with 64K pages on aarch64
>
>
>
>
> Date: 
>
> Sat, 17 Jul 2021 13:02:25 +0300
>
>
>
>
> > From: Dan Čermák <dan.cermak@cgc-instruments.com>
> > Cc: Daniel Colascione <dancol@dancol.org>, 49495@debbugs.gnu.org
> > Date: Sat, 17 Jul 2021 11:45:46 +0200
> > 
> > > commit 216c65b135c2b0be7e048cdc6683873b03b99b9a
> > > Author:     Lars Ingebrigtsen <larsi@gnus.org>
> > > AuthorDate: Sun Mar 28 19:13:00 2021 +0200
> > >
> > >     Use a 64KB page size for pdump
> > >     
> > >     * src/pdumper.c (dump_get_page_size): Use a 64KB page size on all
> > >     architectures, as this many vary between systems (bug#47125).
> > >
> > > So I think the problem should be fixed now, but it'd be good to get it
> > > confirmed.
> > 
> > This appears to fix this issue. Thanks!
>
> Thanks, so I'm closing this bug report.
>
>
> --- End Message ---