From: Lakshitha Harshan <harshan.dll@gmail.com>
To: xen-devel@lists.xensource.com
Subject: Memory Sharing
Date: Tue, 24 May 2011 12:47:39 +0530 [thread overview]
Message-ID: <BANLkTi=Xg=0s4RjVYz9u1ViabrDWtEbWpQ@mail.gmail.com> (raw)
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Hi,
I'm using Xen 4.1.1-rc1-pre on linux-xen-2.6.32.39-g057b171. I'm trying to
use memory sharing functions. In my code i call,
uint64_t shandle, chandle;
xc_memshr_nominate_gfn(xc_handle,dom1,4200,&shandle); //dom1 & dom2 are
Debian Squeeze domUs
xc_memshr_nominate_gfn(xc_handle,dom2,4200,&shandle); // gfn 4200 is a
memory page in kernel code segment
xc_memshr_share(xc_handle, shandle, chandle);
I use xl dmesg and following is the output.
(XEN) sh error: sh_remove_all_mappings(): can't find all mappings of mfn
42f01: c=8000000000000002 t=8400000000000001
(XEN) sh error: sh_remove_all_mappings(): can't find all mappings of mfn
42f01: c=8000000000000002 t=8400000000000001
(XEN) sh error: sh_remove_all_mappings(): can't find all mappings of mfn
9c502: c=8000000000000002 t=8400000000000001
(XEN) sh error: sh_remove_all_mappings(): can't find all mappings of mfn
42f02: c=8000000000000002 t=8400000000000001
(XEN) sh error: sh_remove_all_mappings(): can't find all mappings of mfn
42f02: c=8000000000000002 t=8400000000000001
(XEN) printk: 2695593 messages suppressed.
(XEN) mm.c:907:d1 Error getting mfn 9c625 (pfn fffffffffffffffe) from L1
entry 000000009c625021 for l1e_owner=1, pg_owner=1
(XEN) printk: 2768333 messages suppressed.
After this operations the cpu usage of domUs goes to 97-100% and I can't
shutdown them. So when i issue "xl destroy""the system reboots.
What could be the reason? Any help greatly appreciated.
Thanks,
Harshan
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next reply other threads:[~2011-05-24 7:17 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-05-24 7:17 Lakshitha Harshan [this message]
2011-05-24 9:19 ` Memory Sharing Tim Deegan
-- strict thread matches above, loose matches on Subject: below --
2016-04-18 16:19 memory sharing sepanta s
2016-02-04 21:04 Memory Sharing hanji unit
2016-02-05 0:29 ` Tamas K Lengyel
2016-02-05 10:40 ` David Vrabel
2011-07-26 7:33 Lakshitha Harshan
2011-07-26 9:51 ` Tim Deegan
2011-06-16 14:15 Lakshitha Harshan
2011-06-19 23:34 ` Jui-Hao Chiang
2011-06-14 5:04 Lakshitha Harshan
2011-06-14 8:10 ` Tim Deegan
2011-06-01 3:45 Lakshitha Harshan
2011-06-01 9:46 ` Tim Deegan
2011-05-03 4:49 Lakshitha Harshan
2011-05-03 12:05 ` Tim Deegan
2011-04-26 9:52 Lakshitha Harshan
2011-04-09 6:37 Lakshitha Harshan
2011-04-09 8:36 ` Keir Fraser
2011-04-03 8:28 Memory sharing Lakshitha Harshan
2011-04-03 8:58 ` Keir Fraser
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