On Fri, Sep 29, 2017 at 7:56 PM, Pintu Kumar [off-list ref] wrote:

On Fri, Sep 29, 2017 at 6:44 PM, Damian Tometzki
[off-list ref] wrote:

quoted

Hello,

Ubuntu 16.04 with current linux-next Kernel workson virtualbox 5.1.28

Host: Windows 10
Guest: Ubuntu 16.04

Best regards
Damian


Am Freitag, den 29.09.2017, 08:41 -0400 schrieb
valdis.kletnieks at vt.edu:

quoted

On Fri, 29 Sep 2017 16:08:07 +0530, Pintu Kumar said:

quoted

I have a general question.
How do we normally verify linux-next tree?

The same exact way you "verify" any other Linux kernel, for whatever
definition of "verify" you plan to use.

quoted

1) For Oracle virtual box 5.1.26 with ubuntu-32 bit, the linux-next
kernel is not booting.

Does an Ubuntu kernel boot correctly under VirtualBox?  If not, fix
that issue first.  Also, "is not booting" isn't detailed enough for
anybody
to make even a guess as to what's wrong.

Also, note that 5.1.28 is out.

Ok, I just updated to 5.1.28. And my Ubuntu version is already 16.04.
Let me try again if it works.
Thanks all for your reply.

Now, with vbox 5.1.28, I am getting below build failure with linux-next.
Any quick pointers on this, if anybody faced similar issue.

In file included from ./arch/x86/include/asm/atomic.h:7:0,
                 from ./include/linux/atomic.h:4,
                 from ./include/linux/mm_types_task.h:12,
                 from ./include/linux/mm_types.h:4,
                 from arch/x86/kvm/irq.h:25,
                 from arch/x86/kvm/vmx.c:19:
arch/x86/kvm/vmx.c: In function ?__pi_post_block?:
./arch/x86/include/asm/cmpxchg.h:129:2: warning: ?__ret? is used
uninitialized in this function [-Wuninitialized]
  __ret;        \
  ^
./arch/x86/include/asm/cmpxchg.h:86:21: note: ?__ret? was declared here
  __typeof__(*(ptr)) __ret;     \
                     ^
./arch/x86/include/asm/cmpxchg.h:133:2: note: in expansion of macro
?__raw_cmpxchg?
  __raw_cmpxchg((ptr), (old), (new), (size), LOCK_PREFIX)
  ^
./arch/x86/include/asm/cmpxchg.h:148:2: note: in expansion of macro ?__cmpxchg?
  __cmpxchg(ptr, old, new, sizeof(*(ptr)))
  ^
arch/x86/kvm/vmx.c:11732:11: note: in expansion of macro ?cmpxchg?
  } while (cmpxchg(&pi_desc->control, old.control,
           ^
  CC      kernel/trace/trace_seq.o
  CC      kernel/trace/trace_stat.o
In function ?__pi_post_block?,
    inlined from ?pi_post_block? at arch/x86/kvm/vmx.c:11831:2,
    inlined from ?vmx_post_block? at arch/x86/kvm/vmx.c:11840:2:
./arch/x86/include/asm/cmpxchg.h:127:3: error: call to
?__cmpxchg_wrong_size? declared with attribute error: Bad argument
size for cmpxchg
   __cmpxchg_wrong_size();     \
   ^

BTW, I am more interested in my another query about QEMU arm.
This will be much quicker and easy for me.
But the problem is I wanted to use multiple ssh shell on qemu.
Also I needed a pre-built rootfs image for qemu-arm, cortex-a9
versatilepb machine.
It should have networking and ssh built-in so that I can connect to it
using PUTTY client.
Note that I could able to build my own minimal busybox and boot qemu
using linux-next (non graphical mode).
But I could able to get only one shell.
I need to test some client/server problem, so I need multiple shell.
I am not able to configure net/ssh on this qemu system.

So, I have 2 things to ask:
1) If you have pointers on how to setup ssh/net connection on QEMU
with busybox, do let me know.
2) Let, please point me to a pre-built qemu-arm busy box image with
full features.


Thanks,
Pintu