bug report

bug report

[Stephan Böni]

In the last days i've found two heavy bugs. Is someone working on it?

1. Time stopped (Build 7398)

When starting a domU the system time (in dom0) stopps for a few
seconds and sometimes forever. With disabled Hyperthreading or
maxcpus=1 all works fine.

2. Mounting lots of drives (Build 7398)

Some device nodes (/dev/hd*) are missing in a domU. I can find
in /var/log/messages an interesting thing. For all 16 configured
devices i've found an entry like:
"...xen1 logger: /etc/xen/scripts/block: bind ..."
But only for 9 devices i've found an entry like:
"...xen1 logger: /etc/xen/scripts/block: Writing backend/vbd/1/..."
On the second try to start the domU i've found 12 "Writing backend"
entries and on the third try 10 of them.
If the root device (/dev/hda1) is one of them, i cannot logon
to my domU. The missing /dev/hd*'s are these ones, which haven't
a "Writing backend" entry in the /var/log/messages file.
Interesting thing: I had never this problem with file devices, only
with lvm devices.

Stephan

Re: bug report

[David F Barrera]

On Thu, 2005-10-20 at 14:47 +0200, Stephan Böni wrote:
> In the last days i've found two heavy bugs. Is someone working on it?
> 
> 1. Time stopped (Build 7398)
That's odd. I have not seen this problem since Monday, using changesets
7396 and up. 
> 
> When starting a domU the system time (in dom0) stopps for a few
> seconds and sometimes forever. With disabled Hyperthreading or
> maxcpus=1 all works fine.
> 
> 2. Mounting lots of drives (Build 7398)
> 
> Some device nodes (/dev/hd*) are missing in a domU. I can find
> in /var/log/messages an interesting thing. For all 16 configured
> devices i've found an entry like:
> "...xen1 logger: /etc/xen/scripts/block: bind ..."
> But only for 9 devices i've found an entry like:
> "...xen1 logger: /etc/xen/scripts/block: Writing backend/vbd/1/..."
> On the second try to start the domU i've found 12 "Writing backend"
> entries and on the third try 10 of them.
> If the root device (/dev/hda1) is one of them, i cannot logon
> to my domU. The missing /dev/hd*'s are these ones, which haven't
> a "Writing backend" entry in the /var/log/messages file.
> Interesting thing: I had never this problem with file devices, only
> with lvm devices.
> 
> Stephan
> 
> _______________________________________________
> Xen-devel mailing list
> Xen-devel@lists.xensource.com
> http://lists.xensource.com/xen-devel
> 
-- 
Regards,

David F Barrera
Linux Technology Center
Systems and Technology Group, IBM

"The wisest men follow their own direction. "
                                                        Euripides

Re: bug report

[Stephan Böni]

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Hi David

> > 1. Time stopped (Build 7398)
> That's odd. I have not seen this problem since Monday, using 
> changesets
> 7396 and up. 

You have right. As i've tested it, it was on an older build.
7398 i've installed just later. sorry, my fault.

Stephan

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RE: bug report

[Ian Pratt]

> 1. Time stopped (Build 7398)
> 
> When starting a domU the system time (in dom0) stopps for a 
> few seconds and sometimes forever. With disabled Hyperthreading or
> maxcpus=1 all works fine.

Can anyone repro this?
Are you using the -xen kernel config?

Ian

Re: bug report

[David F Barrera]

Ian,

I replied to that original message indicating that I did not see the 
problem anymore, since aroung changeset 7396. Stephan replied that he 
had been wrong, working on an older build (reply copied below).


David

Hi David


>>> > 1. Time stopped (Build 7398)
>>    
>>
>> That's odd. I have not seen this problem since Monday, using 
>> changesets
>> 7396 and up. 
>  
>

You have right. As i've tested it, it was on an older build.
7398 i've installed just later. sorry, my fault.

Stephan



Ian Pratt wrote:

>>1. Time stopped (Build 7398)
>>
>>When starting a domU the system time (in dom0) stopps for a 
>>few seconds and sometimes forever. With disabled Hyperthreading or
>>maxcpus=1 all works fine.
>>    
>>
>
>Can anyone repro this?
>Are you using the -xen kernel config?
>
>Ian
>
>_______________________________________________
>Xen-devel mailing list
>Xen-devel@lists.xensource.com
>http://lists.xensource.com/xen-devel
>
>  
>

Bug report

[Ing. Ricardo Brisighelli]

Hi my name is Richard and i suscribe to this list but dont know if this list 
is for reports bugs.

Tnks

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Re: Bug report

[Wei Liu]

On Thu, Dec 22, 2016 at 05:07:58PM -0300, Ing. Ricardo Brisighelli wrote:
> Hi my name is Richard and i suscribe to this list but dont know if this list 
> is for reports bugs.
> 

Yes. Please read
https://wiki.xenproject.org/wiki/Reporting_Bugs_against_Xen

Wei.

> Tnks
> 
> _______________________________________________
> Xen-devel mailing list
> Xen-devel@lists.xen.org
> https://lists.xen.org/xen-devel

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