[Xen-users] CPU lockup detected in dom0

["Hugo Rodenburg" <hugo@xxxxxxxxxxx>]

Hi list,

 

I've been playing around with Xen for a few months now, and I'm very excited about this product.

A few days ago I started a fresh install on an Compaq Proliant DL580. It's the first generation of this machine with 4x p3 700 Mhz (1mb cache btw)

The dom0 is using Debian 3.1 (sarge) and works perfectly.

Only after installing xen, and booting xen, I'm getting a _lot_ of the following messages after a while:

 

Apr 17 19:31:38 pgcore02 kernel: BUG: soft lockup detected on CPU#3!
Apr 17 19:31:38 pgcore02 kernel:
Apr 17 19:31:38 pgcore02 kernel: Pid: 0, comm:              swapper
Apr 17 19:31:38 pgcore02 kernel: EIP: 0061:[hypercall_page+935/4096] CPU: 3
Apr 17 19:31:38 pgcore02 kernel: EIP is at 0xc01013a7
Apr 17 19:31:38 pgcore02 kernel:  EFLAGS: 00000292    Not tainted  (2.6.16-xen0-pgcore-1-xen3testing #1)
Apr 17 19:31:38 pgcore02 kernel: EAX: 00000000 EBX: 00000001 ECX: 00000000 EDX: 00000018
Apr 17 19:31:38 pgcore02 kernel: ESI: 00000000 EDI: 00000001 EBP: c0646000 DS: 007b ES: 007b
Apr 17 19:31:38 pgcore02 kernel: CR0: 8005003b CR2: b7f2f000 CR3: 0f8ec000 CR4: 00000640
Apr 17 19:31:38 pgcore02 kernel:  [xen_idle+83/176] xen_idle+0x53/0xb0
Apr 17 19:31:38 pgcore02 kernel:  [cpu_idle+117/128] cpu_idle+0x75/0x80
Apr 17 19:31:38 pgcore02 kernel: BUG: soft lockup detected on CPU#1!
Apr 17 19:31:38 pgcore02 kernel:
Apr 17 19:31:38 pgcore02 kernel: Pid: 0, comm:              swapper
Apr 17 19:31:38 pgcore02 kernel: EIP: 0061:[hypercall_page+935/4096] CPU: 1
Apr 17 19:31:38 pgcore02 kernel: EIP is at 0xc01013a7
Apr 17 19:31:38 pgcore02 kernel:  EFLAGS: 00000292    Not tainted  (2.6.16-xen0-pgcore-1-xen3testing #1)
Apr 17 19:31:38 pgcore02 kernel: EAX: 00000000 EBX: 00000001 ECX: 00000000 EDX: 00000018
Apr 17 19:31:38 pgcore02 kernel: ESI: 00000000 EDI: 00000001 EBP: c0642000 DS: 007b ES: 007b
Apr 17 19:31:38 pgcore02 kernel: CR0: 8005003b CR2: bfe85fec CR3: 0f52f000 CR4: 00000640
Apr 17 19:31:38 pgcore02 kernel:  [xen_idle+83/176] xen_idle+0x53/0xb0
Apr 17 19:31:38 pgcore02 kernel:  [cpu_idle+117/128] cpu_idle+0x75/0x80
Apr 17 19:31:38 pgcore02 kernel: BUG: soft lockup detected on CPU#2!
Apr 17 19:31:38 pgcore02 kernel:
Apr 17 19:31:38 pgcore02 kernel: Pid: 0, comm:              swapper
Apr 17 19:31:38 pgcore02 kernel: EIP: 0061:[hypercall_page+935/4096] CPU: 2
Apr 17 19:31:38 pgcore02 kernel: EIP is at 0xc01013a7
Apr 17 19:31:38 pgcore02 kernel:  EFLAGS: 00000292    Not tainted  (2.6.16-xen0-pgcore-1-xen3testing #1)
Apr 17 19:31:38 pgcore02 kernel: EAX: 00000000 EBX: 00000001 ECX: 00000000 EDX: 00000018
Apr 17 19:31:38 pgcore02 kernel: ESI: 00000000 EDI: 00000001 EBP: c0644000 DS: 007b ES: 007b
Apr 17 19:31:38 pgcore02 kernel: CR0: 8005003b CR2: 080e3b3c CR3: 0d088000 CR4: 00000640
Apr 17 19:31:38 pgcore02 kernel:  [xen_idle+83/176] xen_idle+0x53/0xb0
Apr 17 19:31:38 pgcore02 kernel:  [cpu_idle+117/128] cpu_idle+0x75/0x80

There aren't any domU's running yet. And after a while I've noticed that this error occurs on every cpu, except CPU 0 ?

 

I also found this short conversation in the mailing list, but are curious if there is any news on this subject.

http://groups.google.nl/group/xen-devel-archive/browse_thread/thread/6391b9fc16f3b591/1b41dff3f57e9186?lnk=st

 

Keir also suggests to "turn off" the messages, but is this a solution or just a workaround ?

 

I also tried running it on a different p3 xeon box (with 2 processors) and got the same errors.

Then I tried running the same config on a normal p4 desktop pc, and I got no errors at all.

 

I hope someone has any ideas or suggestions of what this problem might cause, or can tell me what I'm missing here.

 

Thanks in advance,

 

Hugo Rodenburg

 

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