Re: Xen 3.1-testing 32bit vmx fails to compile(CS 15577/tip)

[Ralph Passgang <xen@debianbase.de>]

Hi Keir,

thanks, but it seems that I have just bad news for you.

now xen 3.1 (cs 15598) compiles on i386 and amd64 but at least on amd64 the 
hypervisor hangs at boot. I haven't tested i386 (besides that it compiles) 
yet. The last known working changeset for the amd64 hypervisor was 15590.

The most important part of the errormessage from the hypervisor:

Xen call trace:
 [<ffff828c8015f00c>] vmx_init_vmcs_config+0x1bc/0x1f0
 [<ffff828c80160430>] start_vmx+0x70/0x260
 [<ffff828c80146509>] identify_cpu+0xa8/0x200
 [<ffff828c801bbce6>] __start_xen+0x1ff6/0x24f0
 [<ffff828c801000b5>] __high_start+0xa1/0xa3

Panic on CPU 0:
Xen Bug at vmcs.c:159

If more information is needed, let me know.

  Ralph

Am Montag, 14. Januar 2008 18:19:24 schrieb Keir Fraser:
> It was stuck in the staging tree, which I've now pushed manually.
>
>  K.
>
> On 14/1/08 17:14, "Ralph Passgang" <xen@debianbase.de> wrote:
> > Hi Keir,
> >
> > xen-3.1-testing.hg still doesn't compile on i386 for the same reason as
> > in my original report. I know that 3.2 is more important, but it would
> > be nice if the 3.1 branch could get fixed.
> >
> > thx,
> >  Ralph
> >
> > Am Freitag, 11. Januar 2008 01:54:16 schrieben Sie:
> >> We're missing xen-unstable:15526 from 3.1-testing. I'll add it
> >> tomorrow.
> >>
> >>  Thanks,
> >>  Keir
> >>
> >> On 11/1/08 00:40, "Ralph Passgang" <xen@debianbase.de> wrote:
> >>> Hi,
> >>>
> >>> I just found that xen 3.1-testing changeset 15577 fails to build on
> >>> i386 on debian sid/lenny/etch. It seems to compile just fine on
> >>> amd64/etch.
> >>>
> >>> The following happens compiling the 32bit version:
> >>> [...]
> >>> gcc -O2 -fomit-frame-pointer -m32 -march=i686 -DNDEBUG
> >>> -fno-strict-aliasing -std=gnu99 -Wall -Wstrict-prototypes
> >>> -Wno-unused-value
> >>> -Wdeclaration-after-statement -nostdinc -fno-builtin -fno-common
> >>> -iwithprefix include -Werror -Wno-pointer-arith -pipe
> >>> -I/tmp/buildd/xen-3.1-3.1.3-0/debian/build/build-hypervisor_i386_i386
> >>>/x en/incl ude
> >>> -I/tmp/buildd/xen-3.1-3.1.3-0/debian/build/build-hypervisor_i386_i386
> >>>/x en/incl ude/asm-x86/mach-generic
> >>> -I/tmp/buildd/xen-3.1-3.1.3-0/debian/build/build-hypervisor_i386_i386
> >>>/x en/incl ude/asm-x86/mach-default -msoft-float -fno-stack-protector
> >>> -g -D__XEN__ -DACM_SECURITY -c
> >>> vmx.c -o vmx.o
> >>> cc1: warnings being treated as errors
> >>> vmx.c: In function 'vmx_install_vlapic_mapping':
> >>> vmx.c:2694: warning: right shift count >= width of type
> >>> vmx.c:2695: warning: right shift count >= width of type
> >>> make[8]: *** [vmx.o] Error 1
> >>> make[8]: Leaving directory
> >>> `/tmp/buildd/xen-3.1-3.1.3-0/debian/build/build-hypervisor_i386_i386/
> >>>xe n/arch/ x86/hvm/vmx'
> >>> make[7]: *** [vmx/built_in.o] Error 2
> >>> [...]
> >>>
> >>> The last changeset that I tried and that compiled on i386 was 15564.
> >>> So the last 13 changesets could be the cause. The following 4
> >>> changesets changed the vmx.c, so most likely one of them causes this
> >>> (but I haven't looked any further):
> >>>
> >>> 15565, 15567, 15571, 15575
> >>>
> >>> Would be great if someone could take a look...
> >>>
> >>> Thx,
> >>>  Ralph
> >>>
> >>> _______________________________________________
> >>> Xen-devel mailing list
> >>> Xen-devel@lists.xensource.com
> >>> http://lists.xensource.com/xen-devel