Bug 947365 – sys-devel/crossdev-20241215: linux-headers-3.18-r1 build failure

• Status: UNCONFIRMED
• Product: Gentoo Linux

[Description zen 2025-01-02 22:56:10 UTC]

Created attachment 915749 [details]
build log

In a user mount namespace/chroot, crossdev --target aarch64-unknown-linux-gnu fails.

Setup done with the following steps:

mkdir stage3 sysroot stage3_work stage3_upper
pushd stage3 
wgetpaste <stage3>
tar -xf	stage3.tar.xz
popd 

unshare --map-auto --map-root --mount
mount -t overlay overlay -o userxattr,lowerdir=stage3,workdir=stage3_work,upperdir=stage3_upper	sysroot
mount --rbind /proc sysroot/proc
mount --rbind /sys sysroot/sys
mount --rbind /dev sysroot/dev
mount --types devpts devpts sysroot/dev/pts
mount --bind /var/db/repos sysroot/var/db/repos
mount --bind /etc/resolv.conf sysroot/etc/resolv.conf
chroot sysroot
emerge eselect-repository crossdev
eselect	repository enable crossdev
crossdev --target aarch64-unknown-linux-gnu

[Comment 1 zen 2025-01-02 22:56:29 UTC]

Created attachment 915750 [details]
linux headers build log

[Comment 2 zen 2025-01-02 22:58:09 UTC]

in the setup, wgetpaste <stage3> should be wget <stage3> (obviously).

[Comment 3 zen 2025-01-02 23:12:44 UTC]

This failure is resolved with:

FEATURES="-usersandbox"