Bug#1040981: klibc-utils: Segmentation fault while executin klibc binaries in armhf architecture under qemu-user

From	Thorsten Glaser <tg@debian.org>
Newsgroups	linux.debian.bugs.dist, linux.debian.kernel
Subject	Bug#1040981: klibc-utils: Segmentation fault while executin klibc binaries in armhf architecture under qemu-user
Date	2023-07-14 00:50 +0200
Message-ID	<GRdih-2QS-5@gated-at.bofh.it> (permalink)
References	<GRdih-2QS-3@gated-at.bofh.it> <GRdih-2QS-3@gated-at.bofh.it>
Organization	linux.* mail to news gateway

Cross-posted to 2 groups.

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retitle 1040981 klibc-utils: segfault executing armhf binaries under qemu-user
thanks

Venkata.Pyla@toshiba-tsip.com dixit:

>Follow below steps to reproduce this issue
>```
>$ sudo debootstrap --arch=arm bookworm arm-bookworm-rootfs/ http://deb.debian.org/debian/
>$ sudo chroot arm-bookworm/ apt-update && apt install -y klibc-utils
>$ sudo chroot arm-bookworm/ /usr/lib/klibc/bin/fstype --help
>qemu: uncaught target signal 11 (Segmentation fault) - core dumped
>Segmentation fault
>```

Same when just copying klibc-m13AniKHUCMUNN8mXSUhIi8CUSA.so out
of libklibc_2.0.12-1_armhf.deb into /lib/ and extracting fstype
from klibc-utils_2.0.12-1_armhf.deb… however it works both on a
real-metal ARM box (amdahl.d.o) and a statically(!) linked mksh
against klibc :/

My guess here is that it’s, as usual, the fault of qemu-user,
which has multiple outstanding emulation bugs, some of which
affecting klibc-built binaries especially, though this, since
a statically linked mksh works, is probably an issue with how
qemu-user handles .interp *shrug*

Since your one-stage debootstrap succeeds, can you not do the
remaining steps booting into the image-under-preparation and
run them there? Here, qemu-system-armhf should probably suffice.
I know, it’s just as a workaround, until the people in question
figure out why this happens.

bye,
//mirabilos
-- 
Solange man keine schmutzigen Tricks macht, und ich meine *wirklich*
schmutzige Tricks, wie bei einer doppelt verketteten Liste beide
Pointer XORen und in nur einem Word speichern, funktioniert Boehm ganz
hervorragend.		-- Andreas Bogk über boehm-gc in d.a.s.r

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Bug#1040981: klibc-utils: Segmentation fault while executin klibc binaries in armhf architecture under qemu-user Thorsten Glaser <tg@debian.org> - 2023-07-14 00:50 +0200
  Processed: Re: Bug#1040981: klibc-utils: Segmentation fault while  executin klibc binaries in armhf architecture under qemu-user "Debian Bug Tracking System" <owner@bugs.debian.org> - 2023-07-14 00:50 +0200
  Bug#1040981: klibc-utils: segfault executing armhf binaries under qemu-user Thorsten Glaser <tg@debian.org> - 2023-07-14 02:20 +0200
    Bug#1040981: klibc-utils: segfault executing armhf binaries under qemu-user Helge Deller <deller@gmx.de> - 2023-07-14 06:20 +0200

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