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Bug#711135: Re: compiling a bootable kernel for ia64 (itanium2, mckinley, rx2620)

Cross-posted to 3 groups.

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Hi Jason,

On Sun, 4 Feb 2018, Jason Duerstock wrote:

> Does the kernel from here work for you?:
>
> https://people.debian.org/~jrtc27/wheezy-backports-ia64/
>
> Specifically https://people.debian.org/~jrtc27/wheezy-backports-ia64/linux-image-3.16.0-0.bpo.4-mckinley_3.16.39-1+deb8u1~bpo70+1+gcc4.4_ia64.deb

(As I've already said, this kernel works for our machine.)

How to reproduce this build? Have you published the corresponding rules?

I tried:

$ apt-get source linux-image-3.16.0-0.bpo.4-mckinley
Reading package lists... Done
Building dependency tree
Reading state information... Done
Picking 'linux' as source package instead of 
'linux-image-3.16.0-0.bpo.4-mckinley'
NOTICE: 'linux' packaging is maintained in the 'Git' version control 
system at:
https://anonscm.debian.org/git/kernel/linux.git
Need to get 84.2 MB of source archives.
Get:1 http://ftp.ru.debian.org/debian/ wheezy-backports/main linux 
3.16.39-1+deb8u1~bpo70+1 (dsc) [97.4 kB]
Get:2 http://ftp.ru.debian.org/debian/ wheezy-backports/main linux 
3.16.39-1+deb8u1~bpo70+1 (tar) [81.8 MB]
Get:3 http://ftp.ru.debian.org/debian/ wheezy-backports/main linux 
3.16.39-1+deb8u1~bpo70+1 (diff) [2,316 kB]
Fetched 84.2 MB in 9s (9,087 kB/s)
dpkg-source: info: extracting linux in linux-3.16.39
dpkg-source: info: unpacking linux_3.16.39.orig.tar.xz
dpkg-source: info: unpacking linux_3.16.39-1+deb8u1~bpo70+1.debian.tar.xz
dpkg-source: info: applying debian/version.patch
...
$ cd linux-3.16.39/
$ sed -e 's/gcc-4.6/gcc-4.4/g' debian/config/ia64/defines -i
$ debuild -b -us -uc
$ debuild -j2 -b -us -uc
...
   LINK    vmlinux
   LD      vmlinux.o
   MODPOST vmlinux.o
   GEN     .version
   CHK     include/generated/compile.h
   UPD     include/generated/compile.h
   CC      init/version.o
   LD      init/built-in.o
   KSYM    .tmp_kallsyms1.o
   KSYM    .tmp_kallsyms2.o
   LD      vmlinux
   SYSMAP  System.map
   Building modules, stage 2.
   OBJCOPY arch/ia64/hp/sim/boot/vmlinux.bin
   GZIP    arch/ia64/hp/sim/boot/vmlinux.gz
   MODPOST 2506 modules
   LN      vmlinux.gz
   Kernel: vmlinux.gz is ready
ERROR: "numa_slit" [drivers/block/nvme.ko] undefined!
make[6]: *** [__modpost] Error 1
make[5]: *** [modules] Error 2
make[4]: *** [sub-make] Error 2
make[3]: *** [__sub-make] Error 2
make[3]: Leaving directory 
`/home/imz/with-gcc-4.4.7_wheezy/linux-3.16.39/debian/build/build_ia64_none_itanium'
make[2]: *** [debian/stamps/build_ia64_none_itanium_plain] Error 2
make[2]: Leaving directory `/home/imz/with-gcc-4.4.7_wheezy/linux-3.16.39'
make[1]: *** [build-arch_ia64_none_itanium_real] Error 2
make[1]: Leaving directory `/home/imz/with-gcc-4.4.7_wheezy/linux-3.16.39'
make: *** [build-arch] Error 2
dpkg-buildpackage: error: debian/rules build gave error exit status 2
debuild: fatal error at line 1357:
dpkg-buildpackage -rfakeroot -D -us -uc -j2 -b failed

$

(Parallellization, i.e., -j2, doesn't affect the result; I have checked 
that.)

> On Sun, Feb 4, 2018 at 7:56 PM, Ivan Zakharyaschev <imz@altlinux.org> wrote:

>>> Yes, [this one] doesn't boot on our system. It might even be in our case a
>>> strange/buggy behavior caused by old firmware for an otherwise correct
>>> kernel binary code (or, of course, the code might be not correct). Perhaps,
>>> there is a difference between yours and ours machines:
>>>
>>> root@rx2620:~# cat /proc/cpuinfo
>>> processor  : 0
>>> vendor     : GenuineIntel
>>> arch       : IA-64
>>> family     : 31
>>> model      : 2
>>> model name : Madison up to 9M cache
>>> revision   : 1
>>> archrev    : 0
>>> features   : branchlong
>>> cpu number : 0
>>> cpu regs   : 4
>>> cpu MHz    : 1600.021
>>> itc MHz    : 1600.021752
>>> BogoMIPS   : 2390.01
>>> siblings   : 1
>>> physical id: 0
>>>
>>> processor  : 1
>>> vendor     : GenuineIntel
>>> arch       : IA-64
>>> family     : 31
>>> model      : 2
>>> model name : Madison up to 9M cache
>>> revision   : 1
>>> archrev    : 0
>>> features   : branchlong
>>> cpu number : 0
>>> cpu regs   : 4
>>> cpu MHz    : 1600.021
>>> itc MHz    : 1600.021752
>>> BogoMIPS   : 2390.01
>>> siblings   : 1
>>> physical id: 1
>>>
>>> root@rx2620:~#
>>>
>>> It looks like ours has 2 Madison CPUs (if we are to trust this cpuinfo),
>>> which are older than your Montecito ones.
>>
>>
>>>>  [this one]:
>>>>  https://packages.debian.org/wheezy/linux-image-3.2.0-4-mckinley

>>> So far, we've done a number of attempts to compile and boot a kernel (I'm
>>> going to post the details and the kernels soon), and my conclusion so far is
>>> that the only affecting factor is the version of gcc (even not -O1 vs
>>> -Os/-O2).
>>>
>>> gcc <= 4.5.3 produces a bootable kernel (as for
>>> linux-image-3.2.0-4-mckinley, gcc 4.4.7 from wheezy and gcc 4.5.3 from
>>> snapshots produced a bootable one in my experiments);
>>> gcc > = 4.6.3 produces a non-bootable kernel.
>>>
>>> So this already gives an initial hypothesis about the solution to 1):
>>>
>>> To compile a bootable kernel for this machine, use gcc <= 4.5.3.

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Thread

Bug#711135: Re: compiling a bootable kernel for ia64 (itanium2, mckinley, rx2620) Ivan Zakharyaschev <imz@altlinux.org> - 2018-02-05 02:00 +0100
  Bug#711135: Re: compiling a bootable kernel for ia64 (itanium2, mckinley, rx2620) Ben Hutchings <ben@decadent.org.uk> - 2018-02-05 02:10 +0100
  Bug#711135: Re: compiling a bootable kernel for ia64 (itanium2, mckinley, rx2620) Jason Duerstock <jason.duerstock@gmail.com> - 2018-02-05 02:20 +0100
    Bug#711135: Re: compiling a bootable kernel for ia64 (itanium2, mckinley, rx2620) Ivan Zakharyaschev <imz@altlinux.org> - 2018-02-05 03:20 +0100
    Bug#711135: Re: compiling a bootable kernel for ia64 (itanium2, mckinley, rx2620) Ivan Zakharyaschev <imz@altlinux.org> - 2018-02-07 20:00 +0100
  Bug#711135: compiling a bootable kernel for ia64 (itanium2, mckinley, rx2620) John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de> - 2018-02-05 09:10 +0100

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