On 07/08/2010 02:51 AM, GiovanniB wrote:
> Hello
>
> same problem here.
>
> Supermicro Board
> XEON E5506
>
> xm dmesg:
> (XEN) traps.c:2230:d11 Domain attempted WRMSR 000000000000008b from
> 00000011:00000000 to 00000000:00000000.
> (XEN) traps.c:2230:d11 Domain attempted WRMSR 000000000000008b from
> 00000011:00000000 to 00000000:00000000.
> (XEN) traps.c:2230:d11 Domain attempted WRMSR 000000000000008b from
> 00000011:00000000 to 00000000:00000000.
> (XEN) traps.c:2230:d12 Domain attempted WRMSR 000000000000008b from
> 00000011:00000000 to 00000000:00000000.
> (XEN) traps.c:2230:d12 Domain attempted WRMSR 000000000000008b from
> 00000011:00000000 to 00000000:00000000.
> (XEN) traps.c:2230:d12 Domain attempted WRMSR 000000000000008b from
> 00000011:00000000 to 00000000:00000000.
> (XEN) traps.c:2230:d12 Domain attempted WRMSR 000000000000008b from
> 00000011:00000000 to 00000000:00000000
>
>
> domU hangs here with 400% CPU load (4 vcpus)
> (same problem with 1 vcpu)
>
> ...
> [ 1.807477] kjournald starting. Commit interval 5 seconds
> [ 2.005607] EXT3 FS on xvda1, internal journal
> [ 2.005618] EXT3-fs: recovery complete.
> [ 2.005626] EXT3-fs: mounted filesystem with writeback data mode.
> [ 2.005643] VFS: Mounted root (ext3 filesystem) on device 202:1.
> [ 2.005727] Freeing unused kernel memory: 580k freed
> [ 2.005892] Write protecting the kernel read-only data: 8160k
>
> here it hangs
>
> 2.6.32.15 there is no problem. I have used the same .config for 2.6.32.16.
>
> I have recompiled it with no energy save option, same error.
> C1 and else are disabled in BIOS.
>
Does this patch help?
Thanks,
J
arch/x86/include/asm/cmpxchg_64.h | 16 ++++++++--------
1 files changed, 8 insertions(+), 8 deletions(-)
diff --git a/arch/x86/include/asm/cmpxchg_64.h
b/arch/x86/include/asm/cmpxchg_64.h
index 485ae41..70ac0a4 100644
--- a/arch/x86/include/asm/cmpxchg_64.h
+++ b/arch/x86/include/asm/cmpxchg_64.h
@@ -26,26 +26,26 @@ extern void __cmpxchg_wrong_size(void);
switch (size) { \
case 1: \
asm volatile("xchgb %b0,%1" \
- : "=q" (__x) \
- : "m" (*__xg(ptr)), "0" (__x) \
+ : "=q" (__x), "+m" (*__xg(ptr)) \
+ : "0" (__x) \
: "memory"); \
break; \
case 2: \
asm volatile("xchgw %w0,%1" \
- : "=r" (__x) \
- : "m" (*__xg(ptr)), "0" (__x) \
+ : "=r" (__x), "+m" (*__xg(ptr)) \
+ : "0" (__x) \
: "memory"); \
break; \
case 4: \
asm volatile("xchgl %k0,%1" \
- : "=r" (__x) \
- : "m" (*__xg(ptr)), "0" (__x) \
+ : "=r" (__x), "+m" (*__xg(ptr)) \
+ : "0" (__x) \
: "memory"); \
break; \
case 8: \
asm volatile("xchgq %0,%1" \
- : "=r" (__x) \
- : "m" (*__xg(ptr)), "0" (__x) \
+ : "=r" (__x), "+m" (*__xg(ptr)) \
+ : "0" (__x) \
: "memory"); \
break; \
default: \
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