From: Tim Deegan <Tim.Deegan-Sxgqhf6Nn4DQT0dZR+AlfA@public.gmane.org>
To: Igor Mammedov <imammedo-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
Cc: Stefano-QluZ1wsMt2FxtahE/wReCQ@public.gmane.org,
Paul Menage <menage-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org>,
xen-devel-GuqFBffKawuULHF6PoxzQEEOCMrvLtNR@public.gmane.org,
Keir Fraser <keir-LM2mM/qkH7s@public.gmane.org>,
Stabellini
<stefano.stabellini-mvvWK6WmYclDPfheJLI6IQ@public.gmane.org>,
"containers-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org"
<containers-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org>,
"linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org"
<linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
Michal Hocko <mhocko-AlSwsSmVLrQ@public.gmane.org>,
"linux-mm-Bw31MaZKKs3YtjvyW6yDsg@public.gmane.org"
<linux-mm-Bw31MaZKKs3YtjvyW6yDsg@public.gmane.org>,
Keir Fraser <keir.xen-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>,
"akpm-de/tnXTf+JLsfHDXvbKv3WD2FQJk+8+b@public.gmane.org"
<akpm-de/tnXTf+JLsfHDXvbKv3WD2FQJk+8+b@public.gmane.org>,
"balbir-23VcF4HTsmIX0ybBhKVfKdBPR1lH4CV8@public.gmane.org"
<balbir-23VcF4HTsmIX0ybBhKVfKdBPR1lH4CV8@public.gmane.org>,
KAMEZAWA-QluZ1wsMt2FxtahE/wReCQ@public.gmane.org,
Hiroyuki Kamezawa
<kamezawa.hiroyuki-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
Subject: Re: [Xen-devel] Possible shadow bug
Date: Fri, 10 Jun 2011 11:10:11 +0100 [thread overview]
Message-ID: <20110610101011.GH5098__14319.1110146747$1307700738$gmane$org@whitby.uk.xensource.com> (raw)
In-Reply-To: <20110610100139.GG5098-uBdcGoUfBNNYtxbxJUhB2Dgeux46jI+i@public.gmane.org>
At 11:01 +0100 on 10 Jun (1307703699), Tim Deegan wrote:
> Actually, looking at the disassembly you posted, it looks more like it
> might be an emulator bug in Xen; if Xen finds itself emulating the IMUL
> instruction and either gets the logic wrong or does the memory access
> wrong, it could cause that failure. And one reason that Xen emulates
> instructions is if the memory operand is on a pagetable that's shadowed
> (which might be a page that was recently a pagetable).
>
> ISTR that even though the RHEL xen reports a 3.0.x version it has quite
> a lot of backports in it. Does it have this patch?
> http://hg.uk.xensource.com/xen-3.1-testing.hg/rev/e8fca4c42d05
Oops, that URL doesn't work; I meant this:
http://xenbits.xen.org/xen-3.1-testing.hg/rev/e8fca4c42d05
Tim.
--
Tim Deegan <Tim.Deegan-Sxgqhf6Nn4DQT0dZR+AlfA@public.gmane.org>
Principal Software Engineer, Xen Platform Team
Citrix Systems UK Ltd. (Company #02937203, SL9 0BG)
next prev parent reply other threads:[~2011-06-10 10:10 UTC|newest]
Thread overview: 85+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-06-01 10:44 [PATCH] memcg: do not expose uninitialized mem_cgroup_per_node to world Igor Mammedov
2011-06-01 12:39 ` Michal Hocko
2011-06-01 12:39 ` Michal Hocko
2011-06-01 13:07 ` Igor Mammedov
2011-06-01 13:07 ` Igor Mammedov
[not found] ` <4DE6399C.8070802-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2011-06-01 13:41 ` Michal Hocko
2011-06-01 13:41 ` Michal Hocko
2011-06-01 13:41 ` Michal Hocko
[not found] ` <20110601134149.GD4266-VqjxzfR4DlwKmadIfiO5sKVXKuFTiq87@public.gmane.org>
2011-06-01 14:39 ` Igor Mammedov
2011-06-01 14:39 ` Igor Mammedov
2011-06-01 14:39 ` Igor Mammedov
2011-06-01 15:20 ` Michal Hocko
2011-06-01 15:20 ` Michal Hocko
[not found] ` <20110601152039.GG4266-VqjxzfR4DlwKmadIfiO5sKVXKuFTiq87@public.gmane.org>
2011-06-01 16:42 ` Igor Mammedov
2011-06-01 16:42 ` Igor Mammedov
2011-06-01 23:10 ` Hiroyuki Kamezawa
2011-06-01 23:10 ` Hiroyuki Kamezawa
[not found] ` <BANLkTimbqHPeUdue=_Z31KVdPwcXtbLpeg-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2011-06-03 12:35 ` Igor Mammedov
2011-06-03 12:35 ` Igor Mammedov
2011-06-03 12:35 ` Igor Mammedov
2011-06-03 13:00 ` Hiroyuki Kamezawa
2011-06-03 13:00 ` Hiroyuki Kamezawa
2011-06-07 13:25 ` Igor Mammedov
2011-06-07 13:25 ` Igor Mammedov
[not found] ` <4DEE26E7.2060201-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2011-06-08 3:35 ` KAMEZAWA Hiroyuki
2011-06-08 3:35 ` KAMEZAWA Hiroyuki
2011-06-08 3:35 ` KAMEZAWA Hiroyuki
2011-06-08 21:09 ` Andrew Morton
2011-06-08 21:09 ` Andrew Morton
2011-06-08 23:44 ` KAMEZAWA Hiroyuki
2011-06-08 23:44 ` KAMEZAWA Hiroyuki
[not found] ` <20110608140951.115ab1dd.akpm-de/tnXTf+JLsfHDXvbKv3WD2FQJk+8+b@public.gmane.org>
2011-06-08 23:44 ` KAMEZAWA Hiroyuki
2011-06-10 16:57 ` Igor Mammedov
2011-06-10 16:57 ` Igor Mammedov
2011-06-10 16:57 ` Igor Mammedov
2011-07-26 21:17 ` Andrew Morton
2011-07-26 21:17 ` Andrew Morton
[not found] ` <20110726141754.c69b96c6.akpm-de/tnXTf+JLsfHDXvbKv3WD2FQJk+8+b@public.gmane.org>
2011-07-27 7:58 ` Michal Hocko
2011-07-27 7:58 ` Michal Hocko
2011-07-27 7:58 ` Michal Hocko
2011-07-27 9:30 ` Igor Mammedov
2011-07-27 9:30 ` Igor Mammedov
2011-07-27 9:57 ` Michal Hocko
2011-07-27 9:57 ` Michal Hocko
[not found] ` <4E2FDAA0.5020702-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2011-07-27 9:57 ` Michal Hocko
[not found] ` <20110727075845.GA4024-VqjxzfR4DlwKmadIfiO5sKVXKuFTiq87@public.gmane.org>
2011-07-27 9:30 ` Igor Mammedov
[not found] ` <4DF24D04.1080802-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2011-07-26 21:17 ` Andrew Morton
[not found] ` <20110608123527.479e6991.kamezawa.hiroyu-+CUm20s59erQFUHtdCDX3A@public.gmane.org>
2011-06-08 21:09 ` Andrew Morton
2011-06-09 8:11 ` Igor Mammedov
2011-06-09 8:11 ` Igor Mammedov
2011-06-09 8:11 ` Igor Mammedov
2011-06-09 12:40 ` Possible shadow bug (was: Re: [PATCH] memcg: do not expose uninitialized mem_cgroup_per_node to world) Stefano Stabellini
2011-06-09 12:40 ` Stefano Stabellini
2011-06-09 12:40 ` Stefano Stabellini
2011-06-09 15:01 ` [Xen-devel] " Tim Deegan
2011-06-09 15:01 ` Tim Deegan
2011-06-09 15:01 ` Tim Deegan
2011-06-09 16:47 ` [Xen-devel] Possible shadow bug Igor Mammedov
2011-06-09 16:47 ` Igor Mammedov
2011-06-10 10:01 ` Tim Deegan
2011-06-10 10:01 ` Tim Deegan
2011-06-10 10:10 ` Tim Deegan
2011-06-10 10:10 ` Tim Deegan
[not found] ` <20110610101011.GH5098-uBdcGoUfBNNYtxbxJUhB2Dgeux46jI+i@public.gmane.org>
2011-06-10 11:48 ` Pasi Kärkkäinen
2011-06-10 13:55 ` Igor Mammedov
2011-06-10 11:48 ` Pasi Kärkkäinen
2011-06-10 11:48 ` Pasi Kärkkäinen
2011-06-10 12:40 ` Tim Deegan
2011-06-10 12:40 ` Tim Deegan
2011-06-10 15:38 ` Igor Mammedov
2011-06-10 15:38 ` Igor Mammedov
[not found] ` <20110610124034.GI5098-uBdcGoUfBNNYtxbxJUhB2Dgeux46jI+i@public.gmane.org>
2011-06-10 15:38 ` Igor Mammedov
[not found] ` <20110610114821.GB32595-GxtO3QLqHcLR7s880joybQ@public.gmane.org>
2011-06-10 12:40 ` Tim Deegan
2011-06-10 13:55 ` Igor Mammedov
2011-06-10 13:55 ` Igor Mammedov
[not found] ` <20110610100139.GG5098-uBdcGoUfBNNYtxbxJUhB2Dgeux46jI+i@public.gmane.org>
2011-06-10 10:10 ` Tim Deegan [this message]
[not found] ` <4DF0F90D.4010900-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2011-06-10 10:01 ` Tim Deegan
[not found] ` <20110609150133.GF5098-uBdcGoUfBNNYtxbxJUhB2Dgeux46jI+i@public.gmane.org>
2011-06-09 16:47 ` Igor Mammedov
[not found] ` <4DF0801F.9050908-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2011-06-09 12:40 ` Possible shadow bug (was: Re: [PATCH] memcg: do not expose uninitialized mem_cgroup_per_node to world) Stefano Stabellini
[not found] ` <BANLkTinMamg_qesEffGxKu3QkT=zyQ2MRQ-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2011-06-07 13:25 ` [PATCH] memcg: do not expose uninitialized mem_cgroup_per_node to world Igor Mammedov
[not found] ` <4DE8D50F.1090406-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2011-06-03 13:00 ` Hiroyuki Kamezawa
[not found] ` <4DE66BEB.7040502-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2011-06-01 23:10 ` Hiroyuki Kamezawa
[not found] ` <4DE64F0C.3050203-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2011-06-01 15:20 ` Michal Hocko
2011-06-01 13:49 ` Igor Mammedov
2011-06-01 13:49 ` Igor Mammedov
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to='20110610101011.GH5098__14319.1110146747$1307700738$gmane$org@whitby.uk.xensource.com' \
--to=tim.deegan-sxgqhf6nn4dqt0dzr+alfa@public.gmane.org \
--cc=KAMEZAWA-QluZ1wsMt2FxtahE/wReCQ@public.gmane.org \
--cc=Stefano-QluZ1wsMt2FxtahE/wReCQ@public.gmane.org \
--cc=akpm-de/tnXTf+JLsfHDXvbKv3WD2FQJk+8+b@public.gmane.org \
--cc=balbir-23VcF4HTsmIX0ybBhKVfKdBPR1lH4CV8@public.gmane.org \
--cc=containers-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org \
--cc=imammedo-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org \
--cc=kamezawa.hiroyuki-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org \
--cc=keir-LM2mM/qkH7s@public.gmane.org \
--cc=keir.xen-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org \
--cc=linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org \
--cc=linux-mm-Bw31MaZKKs3YtjvyW6yDsg@public.gmane.org \
--cc=menage-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org \
--cc=mhocko-AlSwsSmVLrQ@public.gmane.org \
--cc=stefano.stabellini-mvvWK6WmYclDPfheJLI6IQ@public.gmane.org \
--cc=xen-devel-GuqFBffKawuULHF6PoxzQEEOCMrvLtNR@public.gmane.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.