12 messages in com.xensource.lists.xen-ia64-develRE: [Xen-ia64-devel] 2 LTP math cases...
FromSent OnAttachments
You, Yongkang19 Jan 2006 23:34.Other
Magenheimer, Dan (HP Labs Fort Collins)20 Jan 2006 09:22 
You, Yongkang22 Jan 2006 17:53 
You, Yongkang22 Jan 2006 18:04.gz
Magenheimer, Dan (HP Labs Fort Collins)25 Jan 2006 14:22 
Magenheimer, Dan (HP Labs Fort Collins)25 Jan 2006 16:10 
You, Yongkang25 Jan 2006 16:24 
You, Yongkang26 Jan 2006 00:16 
Magenheimer, Dan (HP Labs Fort Collins)26 Jan 2006 09:22 
Xu, Anthony05 Feb 2006 18:14 
You, Yongkang05 Feb 2006 19:29.c
Xu, Anthony05 Feb 2006 22:06 
Subject:RE: [Xen-ia64-devel] 2 LTP math cases failed in xen0
From:Magenheimer, Dan (HP Labs Fort Collins) (dan.@hp.com)
Date:01/25/2006 02:22:35 PM
List:com.xensource.lists.xen-ia64-devel

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:yong@intel.com] Sent: Sunday, January 22, 2006 6:54 PM To: Magenheimer, Dan (HP Labs Fort Collins); xen-@lists.xensource.com 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.@hp.com] Sent: 2006年1月21日 1:23 To: You, Yongkang; xen-@lists.xensource.com 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-@lists.xensource.com [mailto:xen-@lists.xensource.com] On Behalf Of You, Yongkang Sent: Friday, January 20, 2006 12:35 AM To: xen-@lists.xensource.com 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