RE: [Xen-ia64-devel] 2 LTP math cases failed in xen0

["You, Yongkang" <yongkang.you@xxxxxxxxx>]

Dan,

Okay. I would try it. :) Thank you.

Best Regards,
Yongkang (Kangkang) 永康

>-----Original Message-----
>From: Magenheimer, Dan (HP Labs Fort Collins)
>[mailto:dan.magenheimer@xxxxxx]
>Sent: 2006年1月26日 8:11
>To: You, Yongkang; xen-ia64-devel@xxxxxxxxxxxxxxxxxxx
>Subject: RE: [Xen-ia64-devel] 2 LTP math cases failed in xen0
>
>An easier way to check is described here:
>
>http://i-cluster2.inrialpes.fr/doc/misc/fpswa.txt
>
>> -----Original Message-----
>> From: Magenheimer, Dan (HP Labs Fort Collins)
>> Sent: Wednesday, January 25, 2006 3:23 PM
>> To: 'You, Yongkang'; xen-ia64-devel@xxxxxxxxxxxxxxxxxxx
>> Subject: RE: [Xen-ia64-devel] 2 LTP math cases failed in xen0
>>
>> There may be better ways of turning off FPSWA, but
>> here's one that should work:
>>
>> Change linux/arch/ia64/kernel/traps.c:trap_init() so
>> that fpswa_interface is always set to 0.
>>
>> If a native kernel without this change passes the
>> two LTP float_* tests but the same native kernel with
>> this change fails, it would explain why Xen/ia64 doesn't
>> work on the tests... Xen/ia64 doesn't support FPSWA.
>>
>> > -----Original Message-----
>> > From: You, Yongkang [mailto:yongkang.you@xxxxxxxxx]
>> > Sent: Sunday, January 22, 2006 6:54 PM
>> > To: Magenheimer, Dan (HP Labs Fort Collins);
>> > xen-ia64-devel@xxxxxxxxxxxxxxxxxxx
>> > Subject: RE: [Xen-ia64-devel] 2 LTP math cases failed in xen0
>> >
>> > Hi Dan,
>> >
>> > I am not sure about how to check if those math cases are
>> > using FPSWA. I greped the key word in float math cases, but
>> > nothing found.
>> >
>> > 1 information is that these 2 cases (float_exp_log and
>> > float_power) can pass in the VTi and IA32 testing. I paste
>> > the float codes in the attachment tar ball. Hope it can give
>> > some help. If need any information, please let me know.
>> >
>> > Best Regards,
>> > Yongkang (Kangkang) 永康
>> >
>> > >-----Original Message-----
>> > >From: Magenheimer, Dan (HP Labs Fort Collins)
>> > >[mailto:dan.magenheimer@xxxxxx]
>> > >Sent: 2006年1月21日 1:23
>> > >To: You, Yongkang; xen-ia64-devel@xxxxxxxxxxxxxxxxxxx
>> > >Subject: RE: [Xen-ia64-devel] 2 LTP math cases failed in xen0
>> > >
>> > >Hi Yongkang --
>> > >
>> > >Could you see if the math tests that fail are using
>> > >FPSWA (the EFI floating point software assist module)?
>> > >I think it is possible to boot Linux with FPSWA disabled.
>> > >If this also fails these math tests, it would explain
>> > >why Xen/ia64 fails these tests as Xen/ia64 does not
>> > >currently support FPSWA (or any EFI modules).
>> > >
>> > >Thanks,
>> > >Dan
>> > >
>> > >> -----Original Message-----
>> > >> From: xen-ia64-devel-bounces@xxxxxxxxxxxxxxxxxxx
>> > >> [mailto:xen-ia64-devel-bounces@xxxxxxxxxxxxxxxxxxx] On Behalf
>> > >> Of You, Yongkang
>> > >> Sent: Friday, January 20, 2006 12:35 AM
>> > >> To: xen-ia64-devel@xxxxxxxxxxxxxxxxxxx
>> > >> Subject: [Xen-ia64-devel] 2 LTP math cases failed in xen0
>> > >>
>> > >> Hi all,
>> > >>
>> > >> I have run a basic LTP testing on Xen0. Except for 1 system
>> > >> call case failed has reported, there are 2 math cases failed
>> > >> too. But they can pass in the Native Linux of the same
>> > >> hardware environment. These two cases are related to float
>> > >> calculation.
>> > >>
>> > >> The testing environment is:
>> > >> Xen source is xen-ia64-unstable tree Changeset 8476.
>> > >> CPU is Intel Montecito.
>> > >> Native and service OS Linux is RHEL4u2.
>> > >> The LTP is the one of 2005-12-5.
>> > >>
>> > >> The attachment is the summary of testing results. This time I
>> > >> run these test suites:
>> > >> systemcall, memory test, disk io, nptl, math, ipc, pty,
>> sched, fs.
>> > >>
>> > >> I will try to run more testing of LTP and report issues. Hope
>> > >> it can help to stable xen0. :)
>> > >>
>> > >> Best Regards,
>> > >> Yongkang (Kangkang) 永康
>> > >>
>> > >>
>> >
>>

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