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)
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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
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_______________________________________________
Kernelnewbies mailing list
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WARNING: multiple messages have this Message-ID (diff)
From: "John Aron" <john@aronetics.com>
To: <stable@vger.kernel.org>
Cc: <regressions@lists.linux.dev>, <kernelnewbies@kernelnewbies.org>,
"'Mark Salter'" <mark.salter@canonical.com>,
"Mark Lewis" <mark.lewis@canonical.com>
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: 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
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next reply other threads:[~2022-11-24 18:49 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-11-24 18:48 John Aron [this message]
2022-11-24 18:48 ` OBJTOOL Build error John Aron
2022-11-24 21:06 ` Greg KH
2022-11-24 21:06 ` Greg KH
2022-11-30 23:36 ` John Aron
2022-11-30 23:36 ` John Aron
2022-12-01 5:57 ` Greg KH
2022-12-01 5:57 ` Greg KH
2022-12-01 15:52 ` John Aron
2022-12-01 15:52 ` John Aron
2022-12-01 16:40 ` 'Greg KH'
2022-12-01 16:40 ` 'Greg KH'
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