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[Xen-devel] Testing status of HVM (Intel VT) on 64bit XEN unstable c/s 1

from [Ed Smith] [Permanent Link][Original]
To: Xen Devel <xen-devel@xxxxxxxxxxxxxxxxxxx>
Subject: [Xen-devel] Testing status of HVM (Intel VT) on 64bit XEN unstable c/s 13377
From: Ed Smith <esmith@xxxxxxxxxxxxxxx>
Date: Mon, 15 Jan 2007 16:53:25 -0500
Delivery-date: Mon, 15 Jan 2007 13:53:04 -0800
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Summary:
Changeset 13330
- 32bit non-pae uniprocessor kernel guest hangs on boot.
  xm list shows no cpu time consumption (failure.3)
- gettimeofday02 nanosleep01/02 ltp tests fail (failure.1)
- After a 256MB guest has been up and running for some time
  on a 2GB node, launching another 256MB guest fails with:
  Error: (12, 'Cannot allocate memory') (failure.2)

Test Configuration:
Dell Precision WorkStation 380, Dual Core, 2GB, 3 SATA (Intel VT)
64bit XEN RELEASE Build Hypervisor on a RHEL4U2 64bit root (/dev/sda)
32bit fully virtualized (HVM) guest RHEL4U2 256MB (/dev/sdb)
      pae=1(smp) pae=0(up), acpi=1, apic=1
64bit fully virtualized (HVM) guest RHEL4U2 256MB (/dev/sdc)
      pae=1, acpi=1, apic=1

Boot Tests:
Boot a fully virtualized (HVM) guest to the login prompt
Results are marked Pass|Fail where (n) points to a failure description

Regression Tests:
852 tests (851 ltp tests and one 30 minute user load test)
Tests are marked #Pass/#Fail where (n) points to a failure description

XEN 64bit 2 CPU Hypervisor (booted smp):
 ----------------------------------------------------------------------
| XEN      | Guest Kernel (SMP kernels booted with 2 CPUs)             |
| Changeset|-----------------------------------------------------------|
|          | 32bit UP     | 32bit SMP    | 64bit UP     | 64bit SMP    |
|          |--------------|--------------|--------------|--------------|
|          | Boot | Test  | Boot | Test  | Boot | Test  | Boot | Test  |
|----------|------|-------|------|-------|------|-------|------|-------|
| 13377    | Fail |       | Pass | 851/1 | Pass |       | Pass | 851/1 |
|          | (3)  |       |      | (1)   |      |       |      | (1)   |
|----------|------|-------|------|-------|------|-------|------|-------|
| 13330    | Fail |       | Pass | 851/1 | Pass |       | Pass | 851/1 |
|          | (3)  |       |      | (1)   |      |       |      | (1)   |
|----------|------|-------|------|-------|------|-------|------|-------|
| 13214    | Pass |       | Pass | 851/1 | Pass |       | Pass | 851/1 |
|          |      |       |      | (1)   |      |       |      | (1)   |
|----------|------|-------|------|-------|------|-------|------|-------|
| 13205    | Pass |       | Pass | 851/1 | Pass |       | Pass | 851/1 |
|          |      |       |      | (1)   |      |       |      | (1)   |
|----------|------|-------|------|-------|------|-------|------|-------|
| 13078    | Pass |       | Pass | 852/0 | Fail |       | Pass | 851/1 |
|          |      |       |      | (1)   | (4)  |       |      | (1)   |
 ----------------------------------------------------------------------

Multiple Guest Boot Test
Test is a 30 minute user load on both Guests
XEN 64bit 2 CPU Hypervisor (booted smp):
 --------------------------------------------
| XEN      | Guest Kernel                    |
| Changeset|---------------------------------|
|          | 32bit 1CPU UP  | 32bit 2CPU SMP |
|          | 64bit 1CPU UP  | 64bit 2CPU SMP |
|          |----------------|----------------|
|          | Boot | Test    | Boot | Test    |
|----------|------|---------|------|---------|
| 13377    | Fail |         | Pass | Pass    |
|          | (3)  |         | (2)  |         |
|----------|------|---------|------|---------|
| 13330    | Fail |         | Pass | Pass    |
|          | (3)  |         | (2)  |         |
|----------|------|---------|------|---------|
| 13214    | Pass | Pass    | Pass | Pass    |
|          | (2)  |         | (2)  |         |
|----------|------|---------|------|---------|
| 13205    | Pass | Pass    | Pass | Pass    |
|          | (2)  |         | (2)  |         |
|----------|------|---------|------|---------|
| 13078    | Fail |         | Pass | Pass    |
|          | (4)  |         | (2)  |         |
 --------------------------------------------

Failures:
 1. BUG 666: 32bit guests fail gettimeofday02, nanosleep01/02
    with clock problems
 2. After a 256MB guest has been up and running for some time
    on a 2GB node, launching another 256MB guest fails with:
    Error: (12, 'Cannot allocate memory')
 3. 32bit non-pae uniprocessor kernel guest hangs on boot.
    xm list shows no cpu time consumption
 4. FIXED: 64bit uni-processor guest doesn't boot:
    Kernel panic from APIC_init_uniprocessor+133

File: failure.1

[root@tst079 ~]# xm info
host                   : tst079
release                : 2.6.16.33-xen
version                : #1 SMP Mon Jan 15 01:46:34 EST 2007
machine                : x86_64
nr_cpus                : 2
nr_nodes               : 1
sockets_per_node       : 1
cores_per_socket       : 2
threads_per_core       : 1
cpu_mhz                : 2793
hw_caps                : 
bfebfbff:20100800:00000000:00000180:0000e43d:00000000:00000001
total_memory           : 1022
free_memory            : 1
xen_major              : 3
xen_minor              : 0
xen_extra              : -unstable
xen_caps               : xen-3.0-x86_64 xen-3.0-x86_32p hvm-3.0-x86_32 
hvm-3.0-x86_32p hvm-3.0-x86_64
xen_pagesize           : 4096
platform_params        : virt_start=0xffff800000000000
xen_changeset          : Sun Jan 14 17:22:24 2007 +0000 13377:2b50acbdf01b
cc_compiler            : gcc version 4.0.0 20050519 (Red Hat 4.0.0-8)
cc_compile_by          : build
cc_compile_domain      : virtualiron.com
cc_compile_date        : Mon Jan 15 01:05:15 EST 2007
xend_config_format     : 3
[root@tst079 ~]# xm list
Name                                      ID   Mem VCPUs      State   Time(s)
Domain-0                                   0   723     2     r-----   3535.0
vs161                                      1   264     2     ------  12883.4
[root@tst079 ~]#                                                                
            
Guest:

[root@vs161 bin]# while [ 1 ]; do gettimeofday02; sleep 2; done
gettimeofday02    0  INFO  :  checking if gettimeofday is monotonous, takes 30s
gettimeofday02    1  FAIL  :  Time is going backwards (old 1168873313.502027 vs 
new 1168873313.502008!
gettimeofday02    0  INFO  :  checking if gettimeofday is monotonous, takes 30s
gettimeofday02    1  FAIL  :  Time is going backwards (old 1168873315.764514 vs 
new 1168873315.764483!
gettimeofday02    0  INFO  :  checking if gettimeofday is monotonous, takes 30s
gettimeofday02    1  FAIL  :  Time is going backwards (old 1168873318.212777 vs 
new 1168873318.212752!

[root@vs161 bin]# while [ 1 ]; do nanosleep01; sleep 2; done
nanosleep01    1  PASS  :  nanosleep functionality is correct
nanosleep01    1  PASS  :  nanosleep functionality is correct
nanosleep01    1  PASS  :  nanosleep functionality is correct
nanosleep01    1  PASS  :  nanosleep functionality is correct
nanosleep01    1  PASS  :  nanosleep functionality is correct
nanosleep01    1  PASS  :  nanosleep functionality is correct
nanosleep01    1  PASS  :  nanosleep functionality is correct
nanosleep01    1  PASS  :  nanosleep functionality is correct
nanosleep01    1  PASS  :  nanosleep functionality is correct
nanosleep01    1  PASS  :  nanosleep functionality is correct
nanosleep01    1  PASS  :  nanosleep functionality is correct
nanosleep01    1  PASS  :  nanosleep functionality is correct
nanosleep01    1  PASS  :  nanosleep functionality is correct
nanosleep01    1  PASS  :  nanosleep functionality is correct
nanosleep01    1  PASS  :  nanosleep functionality is correct
nanosleep01    1  PASS  :  nanosleep functionality is correct
nanosleep01    1  PASS  :  nanosleep functionality is correct
nanosleep01    1  FAIL  :  Child execution not suspended for 2 seconds.  
(Wanted 2000 ms, got 2254 ms)
nanosleep01    1  FAIL  :  Failures reported above
nanosleep01    1  PASS  :  nanosleep functionality is correct

[root@vs161 bin]# while [ 1 ]; do nanosleep02; sleep 2; done
nanosleep02    1  FAIL  :  Child execution not suspended for 5 seconds
nanosleep02    1  FAIL  :  child process exited abnormally
nanosleep02    1  PASS  :  Functionality of nanosleep() is correct
nanosleep02    1  PASS  :  Functionality of nanosleep() is correct
nanosleep02    1  PASS  :  Functionality of nanosleep() is correct
nanosleep02    1  PASS  :  Functionality of nanosleep() is correct
nanosleep02    1  PASS  :  Functionality of nanosleep() is correct
nanosleep02    1  PASS  :  Functionality of nanosleep() is correct
nanosleep02    1  FAIL  :  Remaining sleep time 4642 msec doesn't match with 
the expected 4250 msec time
nanosleep02    1  FAIL  :  child process exited abnormally
nanosleep02    1  PASS  :  Functionality of nanosleep() is correct
nanosleep02    1  PASS  :  Functionality of nanosleep() is correct
nanosleep02    1  PASS  :  Functionality of nanosleep() is correct

File: failure.2

[root@tst078 ~]# xm info
host                   : tst078
release                : 2.6.16.33-xen
version                : #1 SMP Mon Jan 15 01:46:34 EST 2007
machine                : x86_64
nr_cpus                : 2
nr_nodes               : 1
sockets_per_node       : 1
cores_per_socket       : 2
threads_per_core       : 1
cpu_mhz                : 2793
hw_caps                : 
bfebfbff:20100800:00000000:00000180:0000e43d:00000000:00000001
total_memory           : 2046
free_memory            : 1
xen_major              : 3
xen_minor              : 0
xen_extra              : -unstable
xen_caps               : xen-3.0-x86_64 xen-3.0-x86_32p hvm-3.0-x86_32 
hvm-3.0-x86_32p hvm-3.0-x86_64
xen_pagesize           : 4096
platform_params        : virt_start=0xffff800000000000
xen_changeset          : Sun Jan 14 17:22:24 2007 +0000 13377:2b50acbdf01b
cc_compiler            : gcc version 4.0.0 20050519 (Red Hat 4.0.0-8)
cc_compile_by          : build
cc_compile_domain      : virtualiron.com
cc_compile_date        : Mon Jan 15 01:05:15 EST 2007
xend_config_format     : 3
[root@tst078 ~]# xm list
Name                                      ID   Mem VCPUs      State   Time(s)
Domain-0                                   0  1735     2     r-----   3416.9
vs170                                      1   264     2     -b----  12491.1
[root@tst078 ~]# cat /proc/meminfo
MemTotal:      1776640 kB
MemFree:         12736 kB
Buffers:       1590740 kB
Cached:          16840 kB
SwapCached:          0 kB
Active:         590352 kB
Inactive:      1047924 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      1776640 kB
LowFree:         12736 kB
SwapTotal:     6450056 kB
SwapFree:      6449768 kB
Dirty:             476 kB
Writeback:           0 kB
Mapped:          40128 kB
Slab:            63992 kB
CommitLimit:   7338376 kB
Committed_AS:   125640 kB
PageTables:       2580 kB
VmallocTotal: 34359738367 kB
VmallocUsed:     85604 kB
VmallocChunk: 34359651751 kB
[root@tst078 ~]# cat /proc/xen/balloon
Current allocation:  1776640 kB
Requested target:    1776640 kB
Low-mem balloon:      149208 kB
High-mem balloon:          0 kB
Driver pages:           1024 kB
Xen hard limit:          ??? kB
[root@tst078 ~]# xm create /boot/vs160_sdl.hvm
Using config file "/boot/vs160_sdl.hvm".
Error: (12, 'Cannot allocate memory')
[root@tst078 ~]#                                                                
                                   

File: failure.3

[root@tst078 ~]# xm info
host                   : tst078
release                : 2.6.16.33-xen
version                : #1 SMP Mon Jan 15 01:46:34 EST 2007
machine                : x86_64
nr_cpus                : 2
nr_nodes               : 1
sockets_per_node       : 1
cores_per_socket       : 2
threads_per_core       : 1
cpu_mhz                : 2793
hw_caps                : 
bfebfbff:20100800:00000000:00000180:0000e43d:00000000:00000001
total_memory           : 2046
free_memory            : 1
xen_major              : 3
xen_minor              : 0
xen_extra              : -unstable
xen_caps               : xen-3.0-x86_64 xen-3.0-x86_32p hvm-3.0-x86_32 
hvm-3.0-x86_32p hvm-3.0-x86_64
xen_pagesize           : 4096
platform_params        : virt_start=0xffff800000000000
xen_changeset          : Sun Jan 14 17:22:24 2007 +0000 13377:2b50acbdf01b
cc_compiler            : gcc version 4.0.0 20050519 (Red Hat 4.0.0-8)
cc_compile_by          : build
cc_compile_domain      : virtualiron.com
cc_compile_date        : Mon Jan 15 01:05:15 EST 2007
xend_config_format     : 3
[root@tst078 ~]# xm create /boot/vs160_sdl_nopae.hvm
Using config file "/boot/vs160_sdl_nopae.hvm".
Started domain vs160

** GUEST HANGS **

[root@tst078 ~]# xm list
Name                                      ID   Mem VCPUs      State   Time(s)
Domain-0                                   0  1467     2     r-----   3428.6
vs160                                      3   264     1     -b----      3.6
[root@tst078 ~]# xm list
Name                                      ID   Mem VCPUs      State   Time(s)
Domain-0                                   0  1467     2     r-----   3428.8
vs160                                      3   264     1     -b----      3.6
[root@tst078 ~]# xm list
Name                                      ID   Mem VCPUs      State   Time(s)
Domain-0                                   0  1467     2     r-----   3429.0
vs160                                      3   264     1     -b----      3.6
[root@tst078 ~]#                                                                
                  

Guest hangs after:
Mounting root filesystem
kjournald starting. Commit interval 5 seconds
EXT3-fs: mounted filesystem with ordered data mode.
Switching to new root 
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