[Xen-bugs] [Bug 1493] New: [vt-d]when assign 82557 NIC to HVM, HVM hang

[bugzilla-daemon@xxxxxxxxxxxxxxxxxxx]

http://bugzilla.xensource.com/bugzilla/show_bug.cgi?id=1493

           Summary: [vt-d]when assign 82557 NIC to HVM, HVM hang
           Product: Xen
           Version: unstable
          Platform: x86-64
        OS/Version: Linux-2.6
            Status: NEW
          Severity: major
          Priority: P1
         Component: HVM
        AssignedTo: xen-bugs@xxxxxxxxxxxxxxxxxxx
        ReportedBy: jiajun.xu@xxxxxxxxx


Environment:
------------
Service Arch (ia32/ia32e/IA64): ia32
Guest Arch (ia32/ia32e/IA64): ia32e
Guest OS Type (Linux/Windows):linux  2.6.30-rc3-tip
Change Set: 20001
Hardware: NHM-HEDT
Other:


Bug detailed description:
--------------------------
when assign  82557 NIC to HVM, HVM hang, and dom0 have calltrace. When kill the
HVM, xm pci-list-a still can't find the assigned bdf. Other NIC work fine(i,e 
82572EI). Partiton of calltrace as follows:

+0xe7/0x148()
[  519.588951] Hardware name:
[  519.589284] Modules linked in: sg sr_mod cdrom ata_piix ide_gd_mod ide_core
ahci libata sd_mod scsi_mod ehci_hcd ohci_hcd uhci_hcd
[  519.590415] Pid: 0, comm: swapper Not tainted 2.6.30-rc3-tip #1
[  519.590758] Call Trace:
[  519.591081]  <IRQ>  [<ffffffff81063a20>] warn_slowpath+0xd3/0xf2
[  519.591467]  [<ffffffff8102ebb6>] ? xen_spin_unlock+0x11/0x2e
[  519.591812]  [<ffffffff810b0681>] ? perf_counter_task_sched_in+0x162/0x177
[  519.592166]  [<ffffffff81079164>] ? run_posix_cpu_timers+0x9b/0x643
[  519.592514]  [<ffffffff8104c2c3>] ? pvclock_clocksource_read+0x42/0x7b
[  519.592863]  [<ffffffff8104c2c3>] ? pvclock_clocksource_read+0x42/0x7b
[  519.593213]  [<ffffffff8104c2c3>] ? pvclock_clocksource_read+0x42/0x7b
[  519.593561]  [<ffffffff8104c2c3>] ? pvclock_clocksource_read+0x42/0x7b
[  519.593910]  [<ffffffff8102ebf9>] ? __spin_time_accum+0x1b/0x3a
[  519.594256]  [<ffffffff8102eeac>] ? xen_spin_lock+0xb/0xf
[  519.594597]  [<ffffffff8102ebb6>] ? xen_spin_unlock+0x11/0x2e
[  519.594944]  [<ffffffff813de874>] ? __netif_tx_unlock+0x22/0x26
[  519.595290]  [<ffffffff813dea7b>] ? netif_tx_lock+0x4e/0x67
[  519.595631]  [<ffffffff813debf5>] dev_watchdog+0xe7/0x148
[  519.595973]  [<ffffffff8102ee75>] ? __xen_spin_lock+0xae/0xc1
[  519.596318]  [<ffffffff81057bf2>] ? account_idle_ticks+0x9/0xb
[  519.596668]  [<ffffffff8106ca7c>] ? cascade+0x4c/0x69
[  519.597013]  [<ffffffff813deb0e>] ? dev_watchdog+0x0/0x148
[  519.597358]  [<ffffffff8106cc55>] run_timer_softirq+0x15b/0x1ec


The device NIC info:
[root@vt-nhm4 ~]# lspci  -v -s  06:02.0
06:02.0 Ethernet controller: Intel Corporation 82557/8/9/0/1 Ethernet Pro 100
(rev 08)
        Subsystem: Intel Corporation EtherExpress PRO/100+
        Flags: bus master, medium devsel, latency 32, IRQ 18
        Memory at d3100000 (32-bit, non-prefetchable) [size=4K]
        I/O ports at 1000 [size=64]
        Memory at d3000000 (32-bit, non-prefetchable) [size=1M]
        Expansion ROM at d4200000 [disabled] [size=1M]
        Capabilities: [dc] Power Management version 2
        Kernel driver in use: pci-stub



Reproduce steps:
----------------
1.static assign Intel Corporation 82557/8/9/0/1 NIC to HVM


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