From: "John Aron" <john@aronetics.com>
To: <stable@vger.kernel.org>
Cc: 'Mark Salter' <mark.salter@canonical.com>,
Mark Lewis <mark.lewis@canonical.com>,
regressions@lists.linux.dev, kernelnewbies@kernelnewbies.org
Subject: OBJTOOL Build error
Date: Thu, 24 Nov 2022 13:48:08 -0500 [thread overview]
Message-ID: <041601d90035$4f738de0$ee5aa9a0$@aronetics.com> (raw)
[-- Attachment #1.1.1: Type: text/plain, Size: 3331 bytes --]
Hello -
I have an idea of where to begin: our kernel code compiles and works on Red
Hat, CentOS, and Fedora. In Ubuntu 20.04, I have an error.
root@form:/home/john/thor-linux/Kernel/ubuntu20.04# make
rmmod: ERROR: Module thor is not currently loaded
make: [Makefile:7: all] Error 1 (ignored)
make[1]: Entering directory '/usr/src/linux-headers-5.4.0-131-generic'
CC [M] /home/john/thor-linux/Kernel/ubuntu22.04/thor.o
/home/john/thor-linux/Kernel/ubuntu22.04/thor.o: warning: objtool:
_Controller_process_response_map()+0x1b3: unreachable instruction
Building modules, stage 2.
MODPOST 1 modules
CC [M] /home/john/thor-linux/Kernel/ubuntu22.04/thor.mod.o
LD [M] /home/john/thor-linux/Kernel/ubuntu22.04/thor.ko
make[1]: Leaving directory '/usr/src/linux-headers-5.4.0-131-generic'
make[1]: Entering directory '/usr/src/linux-headers-5.4.0-131-generic'
CLEAN /home/john/thor-linux/Kernel/ubuntu22.04/Module.symvers
make[1]: Leaving directory '/usr/src/linux-headers-5.4.0-131-generic'
#@sudo dmesg -C
#@sudo insmod /usr/local/etc/thor.ko
filename: /usr/local/etc/thor.ko
version: 0.1
description: THOR KMOD
author: Aronetics
license: GPL
srcversion: BC856FA85DB2FEFD38A1B2A
depends:
retpoline: Y
name: thor
vermagic: 5.4.0-131-generic SMP mod_unload modversions
#@sudo dmesg
root@form:/home/john/thor-linux/Kernel/ubuntu20.04#
<mailto:root@form:/home/john/thor-linux/Kernel/ubuntu20.04#>
Every 2.0s: tail -n30 /var/lib/dkms/thor/1.0.1/build/make.log
DKMS make.log for thor-1.0.1 for kernel 5.4.0-131-generic (x86_64)
Thu 24 Nov 2022 01:10:33 PM EST
make: Entering directory '/usr/src/linux-headers-5.4.0-131-generic'
CC [M] /var/lib/dkms/thor/1.0.1/build/thor.o
/var/lib/dkms/thor/1.0.1/build/thor.o: warning: objtool:
_Controller_process_response_map()+0x1b3: unreachable instruction
Building modules, stage 2.
MODPOST 1 modules
CC [M] /var/lib/dkms/thor/1.0.1/build/thor.mod.o
LD [M] /var/lib/dkms/thor/1.0.1/build/thor.ko
make: Leaving directory '/usr/src/linux-headers-5.4.0-131-generic'
Is this an error in objtool on Ubuntu within
/usr/src/linux-headers-5.4.0-${26-130}/tools/objtool ?
From RHEL 8
[root@profile rhel8]# make
make[1]: Entering directory '/usr/src/kernels/4.18.0-372.26.1.el8_6.x86_64'
CC [M] /home/john/thor-linux/Kernel/rhel8/thor.o
Building modules, stage 2.
MODPOST 1 modules
CC /home/john/thor-linux/Kernel/rhel8/thor.mod.o
LD [M] /home/john/thor-linux/Kernel/rhel8/thor.ko
make[1]: Leaving directory '/usr/src/kernels/4.18.0-372.26.1.el8_6.x86_64'
make[1]: Entering directory '/usr/src/kernels/4.18.0-372.26.1.el8_6.x86_64'
CLEAN /home/john/thor-linux/Kernel/rhel8/.tmp_versions
CLEAN /home/john/thor-linux/Kernel/rhel8/Module.symvers
make[1]: Leaving directory '/usr/src/kernels/4.18.0-372.26.1.el8_6.x86_64'
#@sudo dmesg -C
#@sudo insmod /usr/local/etc/thor.ko
filename: /usr/local/etc/thor.ko
version: 0.1
description: THOR KMOD
author: Aronetics
license: GPL
rhelversion: 8.6
srcversion: FC77130B3C3461BF8DE20B6
depends:
name: thor
vermagic: 4.18.0-372.26.1.el8_6.x86_64 SMP mod_unload modversions
#@sudo dmesg
[root@profile rhel8]#
John
[-- Attachment #1.1.2: Type: text/html, Size: 11602 bytes --]
[-- Attachment #1.2: smime.p7s --]
[-- Type: application/pkcs7-signature, Size: 7097 bytes --]
[-- Attachment #2: Type: text/plain, Size: 170 bytes --]
_______________________________________________
Kernelnewbies mailing list
Kernelnewbies@kernelnewbies.org
https://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
next reply other threads:[~2022-11-24 18:49 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-11-24 18:48 John Aron [this message]
2022-11-24 21:06 ` OBJTOOL Build error Greg KH
2022-11-30 23:36 ` John Aron
2022-12-01 5:57 ` Greg KH
2022-12-01 15:52 ` John Aron
2022-12-01 16:40 ` 'Greg KH'
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to='041601d90035$4f738de0$ee5aa9a0$@aronetics.com' \
--to=john@aronetics.com \
--cc=kernelnewbies@kernelnewbies.org \
--cc=mark.lewis@canonical.com \
--cc=mark.salter@canonical.com \
--cc=regressions@lists.linux.dev \
--cc=stable@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).