Re: xen-2.0 20040923 and previous: rpm crash in xenU

[Peri Hankey <mpah@thegreen.co.uk>]

Here's a summary of results so far. I wasn't able to try your test on 
the fedora xenU system as it was a minimal install - I was planning to 
install extras as needed using poldek (like yum or urpmi, from PLD, 
minimal external dependencies, very handy - but it relies on rpm to do 
the actual installs).

using xen-20040927 (changelog in today's unstable doesn't suggest there 
would be much difference):

xen0 (mandrake 10.0 - 2.6.8.1-xen0)    time-test OK      rpm: OK             /lib/libc.so.6 -> libc-2.3.3.so

xenU (mandrake 10.0 - 2.6.8.1-xenU)    time-test FAIL    rpm: CRASH          /lib/libc.so.6 -> libc-2.3.3.so
xenU (fedora-2      - 2.6.8.1-xenU)    time-test ????    rpm: CRASH          /lib/libc.so.6 -> libc-2.3.3.so 
xenU (PLD Linux     - 2.6.8.1-xenU)    time-test OK      rpm: OK             /lib/libc.so.6 -> libc-2.3.3.so
xenU (Debian Sarge  - 2.6.8.1-xenU)    time-test OK      rpm: NOT AVAILABLE  /lib/libc.so.6 -> libc-2.3.2.so  

No very clear pattern - on the face of it it looks as if the same 
library version produces different results. I suppose that could be a 
result of different compiler flags and optimisation levels.

I don't know if that helps much.

-- Peri

Ian Pratt wrote:

>>Is there any kind of workaround for this nanosleep problem?
>>    
>>
>
>It's a bug, and one that's probably trivial to fix if we can pin
>down the combination of CPU and libraries etc that provoke it.
>
>Are you using the latest unstable tree? Does my test program
>still indicate a problem for you? If so, please post the output
>of /proc/cpuinfo, and information about your distribution and
>libraries.
>
>Like the only other pending bug (the network panic bug) it seems
>only to effect a minority of users, and we can't seem to
>reproduce it locally. Until we get more information I'm afraid
>there's not a lot we can do beyond simply reviewing the code.
>
>Thanks,
>Ian
>
>
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