RE: [Xen-ia64-devel] Weekly benchmark results [2/3rd week]

[Akio Takebe <takebe_akio@xxxxxxxxxxxxxx>]

Hi, Dan

Thank you. I'm sorry for my delay debug.
I'm still debuging, but it is very difficult...
Much advice is welcome. :-)

The patch which I sended once was incorrect patch.
Now I can boot domU by using the following patch.

diff -r 6c43118bdba8 tools/xenstore/xenstored_domain.c
--- a/tools/xenstore/xenstored_domain.c Fri Feb 24 15:41:08 2006 -0700
+++ b/tools/xenstore/xenstored_domain.c Tue Feb 28 18:20:16 2006 +0900
@@ -467,6 +467,7 @@ static int dom0_init(void)
        int rc, fd;
        evtchn_port_t port; 
        unsigned long kva; 
+       unsigned long mfn; 
        char str[20]; 
        struct domain *dom0; 
 
@@ -500,9 +501,16 @@ static int dom0_init(void)
        if (fd == -1)
                return -1;
 
-       dom0->interface = mmap(NULL, getpagesize(), PROT_READ|PROT_WRITE,
-                              MAP_SHARED, fd, kva);
-       if (dom0->interface == MAP_FAILED)
+       mfn=((0x0fffffffffffffff & kva) >>14);
+/*
+        dom0->interface = mmap(NULL, getpagesize(), PROT_READ|PROT_WRITE,
+                               MAP_SHARED, fd, kva);
+*/
+       dom0->interface = xc_map_foreign_range(
+               *xc_handle, 0,
+               getpagesize(), PROT_READ|PROT_WRITE, mfn);
+       if (!dom0->interface) 
+//     if (dom0->interface == MAP_FAILED)
                goto outfd;
 
        close(fd);

Best Regards,

Akio Takebe

>Hi Akio --
>
>Any more progress on this issue?  If you are stuck,
>maybe we should post the problem to xen-devel to
>see if we can get help from a Red Hat person (since
>the problem doesn't occur on Suse or Debian).
>
>Thanks,
>Dan 
>
>> -----Original Message-----
>> From: Akio Takebe [mailto:takebe_akio@xxxxxxxxxxxxxx] 
>> Sent: Thursday, February 23, 2006 8:45 PM
>> To: Magenheimer, Dan (HP Labs Fort Collins); yo.fujita; 
>> xen-ia64-devel@xxxxxxxxxxxxxxxxxxx
>> Cc: Akio Takebe
>> Subject: RE: [Xen-ia64-devel] Weekly benchmark results [2/3rd week]
>> 
>> Hi, Dan and Alex
>> 
>> I think this issue is only on ia64.
>> I seem that kmem_map@drivers/char/mem.c is used on ia64, 
>> but mem_map@drivers/xen/char/mem.c is used on x86.
>> So I think pfn or kva aren't set correctly.
>> We tried to boot domU with revesing cset xen-ia64-ustable.8790 
>> and it was good work.
>> 
>> I'm still debugging it. :-<
>> 
>> Best Regards,
>> 
>> Akio Takebe
>> 
>> >Confirmed cset xen-unstable 8783 fails while 8782 succeeds.
>> >
>> >Perhaps there's something different about mmap on RH
>> >vs Suse and Debian?  Perhaps only on ia64?
>> >
>> 
>> 
>> 



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