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

To: Xen Devel <xen-devel@xxxxxxxxxxxxxxxxxxx>
Subject: [Xen-devel] Testing status of HVM (Intel VT) on 64bit XEN unstable c/s 11731
From: Ed Smith <esmith@xxxxxxxxxxxxxxx>
Date: Tue, 10 Oct 2006 10:45:33 -0400
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Summary:
Changeset 11731
- NEW: Most of the shadow crashes appear to be fixed,
  mtest01 -p80" runs for much longer on a 32bit HVM SMP
  (RHEL4U2) guest before hitting:
  Error: shadow lock held by shadow_update_cr3 (failure.3)

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
      kernargs noapic
64bit fully virtualized (HVM) guest RHEL4U2 256MB (/dev/sdc)
      pae=1, acpi=1, apic=1
      kernargs noapic

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  |
|----------|------|-------|------|-------|------|-------|------|-------|
| 11731    | Pass |       | Pass | 851/1 | Pass |       | Pass | 852/0 |
|          |      |       |      |(1,3)  |      |       |      |       |
|----------|------|-------|------|-------|------|-------|------|-------|
| 11690    | Pass |       | Pass | 849/3 | Pass |       | Pass | 852/0 |
|          |      |       |      |(1,3)  |      |       |      |       |
|----------|------|-------|------|-------|------|-------|------|-------|
| 11686    | Pass |       | Pass | 850/2 | Pass |       | Pass | 852/0 |
|          |      |       |      |(1,3,8)|      |       |      |       |
|----------|------|-------|------|-------|------|-------|------|-------|
| 11655    | Pass |       | Pass | 850/2 | Fail |       | Fail |       |
|          |      |       |      |(1,4)  | (7)  |       | (7)  |       |
|----------|------|-------|------|-------|------|-------|------|-------|
| 11616    | Pass |       | Fail |       | Fail |       | Fail |       |
|          |      |       | (6)  |       | (5)  |       | (5)  |       |
 ----------------------------------------------------------------------

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    |
|----------|------|---------|------|---------|
| 11731    | Pass | Pass    | Pass | Pass    |
|          |      |         |      |         |
|----------|------|---------|------|---------|
| 11690    | Pass | Pass    | Pass | Pass    |
|          |      |         |      |         |
|----------|------|---------|------|---------|
| 11686    | Pass | Pass    | Pass | Pass    |
|          |      |         |      |         |
|----------|------|---------|------|---------|
| 11655    | Fail |         | Fail |         |
|          | (7)  |         | (7)  |         |
|----------|------|---------|------|---------|
| 11616    | Fail |         | Fail |         |
|          | (5)  |         | (5)  |         |
 --------------------------------------------

Failures:
 1. BUG 666: 32bit guests fail ltp gettimeofday02
    and nanosleep01/02 with clock problems
 2. NOT REPRODUCED: XEN crash on an xm destroy of a dead guest
    32bit SMP HVM guest:
    Fatal page fault - put_page_from_l1e+0x85/0x140
 3. XEN crash running ltp "mtest01 -p80" on 32bit SMP HVM guest:
    BUG at multi.c:2967 from sh_page_fault__shadow_3_guest_3
 4. FIXED: XEN crash running ltp "mtest01 -p80" on 32bit SMP HVM guest:
    BUG at multi.c:4082 from sh_clear_shadow_entry__shadow_3_guest_3
 8. FIXED: Domain crash running ltp "mtest01 -p80" on 32bit SMP
    HVM guest and then XEN locked up requiring a hard reset:
    domain_crash_sync called from private.h:495

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