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Subject: Re: [gentoo-user] kernel 4.9.77 error segfault in compile.
To: gentoo-user@lists.gentoo.org
References: <19f22bc3-ce42-e4e1-f4ab-52625a19f34c@charter.net>
<CAJ1xhMXHpLM4jULa8HqfPvaeumvZZGiQUMtEw8Tg8SNLaXK+nQ@mail.gmail.com>
<CAGfcS_ntiRyuq+tXdBCRw2qGN92oY4rfRRSUVd=ULpcJ5QfpvQ@mail.gmail.com>
From: Corbin Bird <corbinbird@charter.net>
Message-ID: <5e0e9718-5620-ba1a-3088-bc4b6ee60bd5@charter.net>
Date: Mon, 22 Jan 2018 20:34:11 -0600
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On 01/22/2018 11:56 AM, Rich Freeman wrote:
> On Mon, Jan 22, 2018 at 12:11 PM, Alexander Kapshuk
> <alexander.kapshuk@gmail.com> wrote:
>> On Mon, Jan 22, 2018 at 5:51 PM, Corbin Bird <corbinbird@charter.net> wrote:
>>> Anyone else getting this error? ( kernel 4.9.77 )
>>>
>>>> CC fs/ext4/mballoc.o
>>>> CC fs/ext4/block_validity.o
>>>> CC fs/ext4/move_extent.o
>>>> CC fs/ext4/mmp.o
>>>> CC fs/ext4/indirect.o
>>>> fs/ext4/indirect.o: warning: objtool: ext4_clear_blocks()+0x242: can't
>>>> find jump dest instruction at .text+0x56c
>>>> CC fs/ext4/extents_status.o
>>>> /bin/sh: line 1: 31735 Segmentation fault ./tools/objtool/objtool
>>>> check "fs/ext4/extents_status.o"
>>>> make[2]: *** [scripts/Makefile.build:294: fs/ext4/extents_status.o]
>>>> Error 139
>>>> make[1]: *** [scripts/Makefile.build:544: fs/ext4] Error 2
>>>> make: *** [Makefile:995: fs] Error 2
>>> Corbin
>>>
>>>
>> Based on the output you supplied, objtool isn't happy with
>> fs/ext4/indirect.o and fs/ext4/extents_status.o.
>> Did you do 'make clean' prior to building the kernel?
>> If you did, it might be worth doing a 'make mrproper' before
>> rebuilding the kernel.
>> Don't forget to back up your .config before running mrproper.
>>
> While this is going to cause a bit more building, I personally tend to
> redirect kernel build output. I add O=/var/tmp/linux to all my make
> commands, which leaves /usr/src untouched and builds faster besides
> (tmpfs).
>
> The main downsides to this are:
> 1. Make can't re-use objects from previous builds, so rebuilds will
> go slower. Though, IMO this is worthwhile if re-using those objects
> causes issues (which I assume is due to imperfect makefiles).
> 2. When building packages that install kernel modules the prepared
> sources won't exist. This requires going back and re-preparing them
> (make O=/var/tmp/linux modules_prepare). For packages like zfs-kmod
> that use Module.symvers this is even more painful as you can only get
> that by rebuilding the whole thing.
>
Tried both approaches ... the results :
> make distclean
> make mrproper
> --> copy over .config
> make modules_prepare
> make && make modules_install
>
> CC fs/ext4/block_validity.o
> CC fs/ext4/move_extent.o
> CC fs/ext4/mmp.o
> CC fs/ext4/indirect.o
> fs/ext4/indirect.o: warning: objtool: ext4_clear_blocks()+0x242: can't
> find jump dest instruction at .text+0x56c
> CC fs/ext4/extents_status.o
> /bin/sh: line 1: 24095 Segmentation fault ./tools/objtool/objtool
> check "fs/ext4/extents_status.o"
> make[2]: *** [scripts/Makefile.build:294: fs/ext4/extents_status.o]
> Error 139
> make[1]: *** [scripts/Makefile.build:544: fs/ext4] Error 2
> make: *** [Makefile:995: fs] Error 2
>
>
Try 2 :
>
> make distclean
> make mrproper
> --> copy over .config
> make O=/var/tmp/linux modules_prepare
> make O=/var/tmp/linux && make O=/var/tmp/linux modules_install
>
> CC fs/ext4/move_extent.o
> CC fs/ext4/mmp.o
> CC fs/ext4/indirect.o
> fs/ext4/indirect.o: warning: objtool: ext4_clear_blocks()+0x242: can't
> find jump dest instruction at .text+0x56c
> CC fs/ext4/extents_status.o
> /bin/sh: line 1: 21028 Segmentation fault ./tools/objtool/objtool
> check "fs/ext4/extents_status.o"
> make[3]: *** [/usr/src/linux-4.9.77-gentoo/scripts/Makefile.build:294:
> fs/ext4/extents_status.o] Error 139
> make[2]: *** [/usr/src/linux-4.9.77-gentoo/scripts/Makefile.build:544:
> fs/ext4] Error 2
> make[1]: *** [/usr/src/linux-4.9.77-gentoo/Makefile:995: fs] Error 2
> make[1]: Leaving directory '/var/tmp/linux'
> make: *** [Makefile:150: sub-make] Error 2
Try 2 gave an error warning about needing an 'make mrproper' ... the error :
>
> CHK include/config/kernel.release
> UPD include/config/kernel.release
> Using /usr/src/linux-4.9.77-gentoo as source for kernel
> /usr/src/linux-4.9.77-gentoo is not clean, please run 'make mrproper'
> in the '/usr/src/linux-4.9.77-gentoo' directory.
> make[1]: *** [/usr/src/linux-4.9.77-gentoo/Makefile:1021: prepare3]
> Error 1
> make[1]: Leaving directory '/var/tmp/linux'
> make: *** [Makefile:150: sub-make] Error 2
So ... I followed directions :
> Darkstar /usr/src/linux # cd /usr/src/linux-4.9.77-gentoo
> Darkstar /usr/src/linux-4.9.77-gentoo # make mrproper
> CLEAN scripts/basic
> CLEAN scripts/kconfig
> CLEAN .config
Still get the same error ...
Corbin