Date: Tue, 23 Feb 2016 16:09:43 +0100 From: =?UTF-8?Q?Gustau_P=c3=a9rez?= <gustau.perez@gmail.com> To: FreeBSD XEN <freebsd-xen@freebsd.org> Subject: Re: Porting the block-iscsi hotplug script Message-ID: <56CC7637.3080408@gmail.com> In-Reply-To: <56CC32E5.5010101@citrix.com> References: <553DEB97.5000300@entel.upc.edu> <5540A053.4080409@entel.upc.edu> <5540F3FC.80606@citrix.com> <5541FC8A.8080009@citrix.com> <5542365D.10403@entel.upc.edu> <55423ECD.6000404@citrix.com> <5556F21D.2050005@entel.upc.edu> <555EEFBA.5080902@citrix.com> <555EF542.3090002@citrix.com> <555F9B3F.1000600@entel.upc.edu> <55602512.1090702@citrix.com> <56C6FA2F.8040900@gmail.com> <56CAC8CB.8030107@gmail.com> <56CADEDA.4050007@citrix.com> <56CB0057.1060509@gmail.com> <56CB041E.1020009@citrix.com> <56CB2D90.5080809@gmail.com> <56CB34BA.6060809@citrix.com> <56CC24BD.6050609@gmail.com> <56CC32E5.5010101@citrix.com>
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El 23/02/16 a les 11:22, Roger Pau Monné ha escrit:
>
> I need to update the port anyway (will try to do it tomorrow), so I can
> also add the patches while there.
>
>> Regarding the hotplug stuff, I reworked the patches to the kernel (it
>> applied but with displacements) and two of the xen-tools ones. Do you
>> want me to post them somewhere?
> Yes please, although I'm not sure when I will have time to work on those.
>
Hi Roger,
I got some time to test the changes, but I'm hitting some problems:
* There's something wrong with the hotplug patches (I guess the
xen-tools patches). xl complains about a block script missing under
${LOCALBASE}/etc/xen/scripts (IIRC).
* If I restore xen-tools to version on the ports tree, but I keep the
kernel hotplug patch, when starting the first domU domain the box
panics because of xenwatch.
The panic is here [1]. The addr2line tells me the problem IP points
to sys/dev/xen/xenstore/xenstore.c:1020.
I don't know where this comes from, because I did set up a core i5
box (installed it in a rush, installed the xen packages from the main
repo) and I was able to create a domU HVM domain with no problems.
To recap, the offending box has:
* xen-kernel + patches at [2] (needed with this machine because of the
problem while at the ata code)
* FreeBSD kernel + hotplug patch at [3]
* xen-tools from the ports tree. If I apply the hotplug patches (I'll
post the rebased versions in a moment) the machines does not panic
but fails about some script not found
I hope I made the current situation clear. I the meantime I'm gonna
revert [3] and test what happens.
If you need any further debugging info let me know.
Gustau
[1] http://pastebin.com/Ar9Vjy6X
[2] ttps://people.freebsd.org/~royger/xen_ins/
[3]
https://people.freebsd.org/~royger/freebsd-hotplug/0001-blkback-add-support-for-hotplug-scripts.patch
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