linux-kernel - Re: [PROBLEM linux-next] Segfault while building headers with dpkg-deb

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Message-ID: <CAK7LNASH6mS3X_YhkVV9z5ZVXdew_nGpJxaakaE1moZckETM7A@mail.gmail.com>
Date: Tue, 2 Jul 2024 17:18:27 +0900
From: Masahiro Yamada <masahiroy@...nel.org>
To: Mirsad Todorovac <mtodorovac69@...il.com>
Cc: Linux Kernel Build System <linux-kbuild@...r.kernel.org>, 
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PROBLEM linux-next] Segfault while building headers with dpkg-deb

On Sat, Jun 29, 2024 at 3:59 AM Mirsad Todorovac <mtodorovac69@...il.com> wrote:
>
> Hi all,
>
> On the vanilla linux-next tree, branch next-20240627, there happens to be a bug while building
> with the randconfig seed KCONFIG_SEED=0x90E8E591:
>
>   .
>   .
>   .
>   XZ      debian/linux-image-6.10.0-rc5-next-20240627-dirty/lib/modules/6.10.0-rc5-next-20240627-dirty/kernel/samples/trace_events/trace-events-sample.ko.xz
>   XZ      debian/linux-image-6.10.0-rc5-next-20240627-dirty/lib/modules/6.10.0-rc5-next-20240627-dirty/kernel/samples/trace_events/trace_custom_sched.ko.xz
>   XZ      debian/linux-image-6.10.0-rc5-next-20240627-dirty/lib/modules/6.10.0-rc5-next-20240627-dirty/kernel/samples/ftrace/sample-trace-array.ko.xz
>   XZ      debian/linux-image-6.10.0-rc5-next-20240627-dirty/lib/modules/6.10.0-rc5-next-20240627-dirty/kernel/samples/fprobe/fprobe_example.ko.xz
> dpkg-deb: building package 'linux-libc-dev' in '../linux-libc-dev_6.10.0-rc5-45_i386.deb'.
>   DEPMOD  debian/linux-image-6.10.0-rc5-next-20240627-dirty/lib/modules/6.10.0-rc5-next-20240627-dirty
> dpkg-deb: building package 'linux-headers-6.10.0-rc5-next-20240627-dirty' in '../linux-headers-6.10.0-rc5-next-20240627-dirty_6.10.0-rc5-45_i386.deb'.
> Segmentation fault (core dumped)
> make[6]: *** [scripts/Makefile.modinst:128: depmod] Error 139
> make[5]: *** [Makefile:1842: modules_install] Error 2
> make[4]: *** [Makefile:2058: run-command] Error 2
> make[3]: *** [debian/rules:61: binary-image] Error 2
> make[3]: *** Waiting for unfinished jobs....
> dpkg-deb: building package 'linux-image-6.10.0-rc5-next-20240627-dirty-dbg' in '../linux-image-6.10.0-rc5-next-20240627-dirty-dbg_6.10.0-rc5-45_i386.deb'.
> dpkg-buildpackage: error: make -f debian/rules binary subprocess returned exit status 2
> make[2]: *** [scripts/Makefile.package:121: bindeb-pkg] Error 2
> make[1]: *** [/home/marvin/linux/kernel/linux-next/Makefile:1555: bindeb-pkg] Error 2
> make: *** [Makefile:240: __sub-make] Error 2
>
> Build log and .config are attached at your convenience.





If you used an old kmod version, this is a known issue.

https://lore.kernel.org/linux-kbuild/E1rNVlL-000qDm-Pg@rmk-PC.armlinux.org.uk/

A quick solution is to upgrade your kmod version.







>
> Hope this helps.
>
> Best regards,
> Mirsad Todorovac



--
Best Regards
Masahiro Yamada