Re: [Xen-users] FreeBSD PVHVM call for testing

[Miguel Clara <miguelmclara@xxxxxxxxx>]

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On 06/22/13 19:11, Miguel Clara wrote:
> On 06/22/13 07:26, Roger Pau Monnà wrote:
>> On 21/06/13 19:55, Miguel Clara wrote:
>>> Roger Pau Monnà <roger.pau <at> citrix.com> writes:
>>> 
>>>> 
>>>> Hello,
>>>> 
>>>> I've pushed a new branch, pvhvm_v10 that contains a PV IPI 
>>>> implementation for both amd64 and i386. I've also updated
>>>> the wiki to point to the pvhvm_v10 branch:
>>>> 
>>>> http://xenbits.xen.org/gitweb/?p=people/royger/
>>> freebsd.git;a=shortlog;h=refs/heads/pvhvm_v10
>>>> 
>>>> I've updated my tree to latest HEAD, so now branch pvhvm_v10
>>>> is on top of this commit:
>>>> 
>>>> commit b44da0fb82647f2cfb06f65a6695c7e36c98828c Author: gber 
>>>> <gber <at> FreeBSD.org> Date:   Thu May 23 12:24:46 2013
>>>> +0000
>>>> 
>>>> Rework and organize pmap_enter_locked() function.
>>>> 
>>>> pmap_enter_locked() implementation was very ambiguous and 
>>>> confusing. Rearrange it so that each part of the mapping 
>>>> creation is separated. Avoid walking through the redundant 
>>>> conditions. Extract vector_page specific PTE setup from
>>>> normal PTE setting.
>>>> 
>>>> Submitted by:   Zbigniew Bodek <zbb <at> semihalf.com> 
>>>> Sponsored by:   The FreeBSD Foundation, Semihalf
>>>> 
>>>> Thanks for the testing, Roger.
>>>> 
>>> 
>>> Have you (or anyone) done some testing under NetBSD Dom0? I
>>> guess its not related, but I'm getting a panic when using SSH.
>>> 
>>> I was able to compile and install the kernel, and booted fine 
>>> (just needed to adapt fstab, other than that no issues).
>>> 
>>> I've done some tests with ping, ftp, wget, but when I tried
>>> SSH (both to the vm and from the vm, I got a panic)
>>> 
>>> ===== PANIC ==== xn_txeof: WARNING: response is -1! debug1: 
>>> SSH2_MSGxn_txeof: WARNING: response is -1! _KEXINIT
>>> receivepanic: mbuf already on the free list, but we're trying
>>> to free it again! cpuid = 0 KDB: enter: panic [ thread pid 12
>>> tid 100039 ] Stopped at      kdb_enter+0x3e: movq    $0,kdb_why
>>> db> bt Tracing pid 12 tid 100039 td 0xfffffe0008101000
>>> kdb_enter() at kdb_enter+0x3e/frame 0xffffff8095021940 vpanic()
>>> at vpanic+0x146/frame 0xffffff8095021980 kassert_panic() at 
>>> kassert_panic+0x136/frame 0xffffff80950219f0 xn_txeof() at 
>>> xn_txeof+0x99/frame 0xffffff8095021a40 xn_intr() at 
>>> xn_intr+0x59/frame 0xffffff8095021b30 
>>> intr_event_execute_handlers() at 
>>> intr_event_execute_handlers+0x90/frame 0xffffff8095021b70 
>>> ithread_loop() at ithread_loop+0x148/frame 0xffffff8095021bb0 
>>> fork_exit() at fork_exit+0x84/frame 0xffffff8095021bf0 
>>> fork_trampoline() at fork_trampoline+0xe/frame 
>>> 0xffffff8095021bf0 --- trap 0, rip = 0, rsp =
>>> 0xffffff8095021cb0, rbp = 0 --- db>
>>> 
>>> == PANIC ===
>>> 
>>> 
>>> I've tried with pvhvm_v10 first, and now with pvhvm_v17, but
>>> give me the panic!
> 
>> Just to make things clear, this is when using a FreeBSD PVHVM
>> DomU with a NetBSD Dom0 right? and the crash happens in the
>> FreeBSD DomU?
> 
>> Could you try to run a FreeBSD HVM (HEAD) guest without my
>> patches and see if it also crashes? (just to know if this is a
>> regression introduced in my series or a bug that was already
>> there).
> 
>> Roger.
> 
> 
> Yes its FreeBSD PVHVM DomU "under" NetBSD 6.1 Dom0!
> 
> Do you think that the fact that this is a NetBSD dom0 might be
> related?
> 
> 
> 
> I will try without the patches and see what I get!
> 
> In the mean time I also noticed that trying to "fetch" some URL
> (ex: fetch 
> https://github.com/KalleDK/plexmediaserver_port/raw/master/tarball/plexmediaserver.tar.gz)
>
> 
give Authorization failed... I've tried a few others, same problem!
> 
> So its clearly related to the network driver!
> 
> I will try without you're patches has suggested and post my
> results!
> 
> Thanks
> 

Hi,

I confirm that with head I have the same problem!

So this is defiantly not related to the patches, should I CC this to
freebsd-current?

Thanks


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