> -----Original Message----- > From: xen-devel-admin@lists.sourceforge.net [mailto:xen-devel- > admin@lists.sourceforge.net] On Behalf Of Ian Pratt > Sent: 14 May 2004 23:49 > To: Kip Macy > Cc: Ian Pratt; Keir Fraser; xen-devel@lists.sourceforge.net; > Ian.Pratt@cl.cam.ac.uk > Subject: Re: [Xen-devel] telnet xend > > > The machine now locks up while spitting out the error message belowwhen> > the non-privileged domain is initially *started*. > > > > > KERNEL: assertion (flags&MSG_PEEK) failed at tcp.c(1540) > > > KERNEL: assertion (skb==NULL || before(tp->copied_seq, > > > TCP_SKB_CB(skb)->end_seq)) failed at tcp.c(1290) > > > KERNEL: assertion (tp->copied_seq == tp->rcv_nxt || > > I''ve never seen anything like this. Did you build the kernel > yourself? What version of gcc? (We use 3.2.2 as per RH9)I think I have these before as well, although not with the recent, i.e., todays checkins. This is in ngio (nodev=y) world, right?> Can you reproduce with one of our nightly builds?I saw these occasionally doing ttcp test in ngio land a day or two ago. Could you try the latest bk version. Keir checked in a few fixes recently. Rolf> The TCP stack is clearly seriously confused. It''s hard to imagine > how Xen could cause this. > > Ian > > > ------------------------------------------------------- > This SF.Net email is sponsored by: SourceForge.net Broadband > Sign-up now for SourceForge Broadband and get the fastest > 6.0/768 connection for only $19.95/mo for the first 3 months! > http://ads.osdn.com/?ad_id=2562&alloc_id=6184&op=click > _______________________________________________ > Xen-devel mailing list > Xen-devel@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/xen-devel------------------------------------------------------- This SF.Net email is sponsored by: SourceForge.net Broadband Sign-up now for SourceForge Broadband and get the fastest 6.0/768 connection for only $19.95/mo for the first 3 months! http://ads.osdn.com/?ad_id%62&alloc_ida84&op=click _______________________________________________ Xen-devel mailing list Xen-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/xen-devel
> I think I have these before as well, although not with the recent, i.e., > todays checkins. This is in ngio (nodev=y) world, right?Yes.> > Could you try the latest bk version. Keir checked in a few fixes > recently. >I''ll try that and let you know. -Kip ------------------------------------------------------- This SF.Net email is sponsored by: SourceForge.net Broadband Sign-up now for SourceForge Broadband and get the fastest 6.0/768 connection for only $19.95/mo for the first 3 months! http://ads.osdn.com/?ad_id=2562&alloc_id=6184&op=click _______________________________________________ Xen-devel mailing list Xen-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/xen-devel
Latest sources were much better behaved. Thanks.
I now have secondary domains up and running with iSCSI luns as the root
device. DOM1 doesn''t appear to have any difficulty saturating the
iSCSI initiator.
I''m extremely pleased.
kmacy@xen-vm0 pwd
/tmp
kmacy@xen-vm0 time dd if=/dev/zero of=bwout bs=1048576 count=1024
1024+0 records in
1024+0 records out
0.000u 0.920s 0:10.73 8.5% 0+0k 0+0io 134pf+0w
kmacy@xen-vm0 time dd of=/dev/null if=bwout bs=1048576 count=1024
1024+0 records in
1024+0 records out
0.000u 0.000s 0:19.51 0.0% 0+0k 0+0io 137pf+0w
kmacy@xen-vm0 cat /proc/meminfo
total: used: free: shared: buffers: cached:
Mem: 64434176 62726144 1708032 0 2285568 27713536
Swap: 0 0 0
MemTotal: 62924 kB
-Kip
On Fri, 14 May 2004, Kip Macy wrote:
>
> > I think I have these before as well, although not with the recent,
i.e.,
> > todays checkins. This is in ngio (nodev=y) world, right?
>
> Yes.
>
> >
> > Could you try the latest bk version. Keir checked in a few fixes
> > recently.
> >
> I''ll try that and let you know.
>
> -Kip
>
>
>
>
>
>
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> I now have secondary domains up and running with iSCSI luns as the root > device. DOM1 doesn''t appear to have any difficulty saturating the > iSCSI initiator. > > I''m extremely pleased.Great! Just to check I understand what you''re doing: you''re running an iSCSI initiator in dom0 that is talking to an iSCSI disk array over GigE, and then re-exporting this as xen block devices to other domains. (?) Which iSCSI initiator are you using? Do you know of a compatible iSCSI target (disk) implementation for Linux? (for those of us that don''t have an iSCSI arry to play with. Do you know of any iSCSI initiator implementations that support root fs on iSCSI? (I know this isn''t relevant for your setup in dom0, but in some circumstances it would be nice to have the domains talking direct. Thanks, Ian ------------------------------------------------------- This SF.Net email is sponsored by: SourceForge.net Broadband Sign-up now for SourceForge Broadband and get the fastest 6.0/768 connection for only $19.95/mo for the first 3 months! http://ads.osdn.com/?ad_id=2562&alloc_id=6184&op=click _______________________________________________ Xen-devel mailing list Xen-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/xen-devel
> Great! Just to check I understand what you''re doing: you''re > running an iSCSI initiator in dom0 that is talking to an iSCSI > disk array over GigE, and then re-exporting this as xen block > devices to other domains. (?)I''m using Adaptec''s iSCSI hardware initiator. The driver is the latest version I downloaded from their website. A NetApp filer is the device exporting LUNs over iSCSI.> Which iSCSI initiator are you using? Do you know of a compatible > iSCSI target (disk) implementation for Linux? (for those of us > that don''t have an iSCSI arry to play with.I can provide a user-mode version if a working Linux one isn''t found. The UNH code is not the cleanest. The few people I know who''ve tried it have had problems.> Do you know of any iSCSI initiator implementations that support > root fs on iSCSI? (I know this isn''t relevant for your setup in > dom0, but in some circumstances it would be nice to have the > domains talking direct.The HW initiator can supposedly boot off of LUNs now. Britt Bolen - mentioned in another e-mail figuring out the contortions required to get iSCSI root with the Cisco initiator. -Kip ------------------------------------------------------- This SF.Net email is sponsored by: SourceForge.net Broadband Sign-up now for SourceForge Broadband and get the fastest 6.0/768 connection for only $19.95/mo for the first 3 months! http://ads.osdn.com/?ad_id=2562&alloc_id=6184&op=click _______________________________________________ Xen-devel mailing list Xen-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/xen-devel