soft lockup detected on CPU#0! (Xen)

[Jason Montleon]

I will file a bug report.  Nothing is getting written to /var/log/dmesg. 
This is example output to the screen:

# yum -y update
Loading "installonlyn" plugin
Setting up Update Process
Setting up repositories
development               100% |=========================| 1.1 kB    00:00
extras-dev: ################################################## 2/2
extras-development        100% |=========================| 1.1 kB    00:00
Reading repository metadata in from local files
primary.xml.gz             81% |====================     | 1.0 MB    00:04 
ETA BUG: soft lockup detected on CPU#0!

Pid: 0, comm:              swapper
EIP: 0061:[<c01040c7>] CPU: 0
EIP is at 0xc01040c7
 EFLAGS: 00200246    Not tainted  (2.6.15-1.1948_FC5guest)
EAX: 00000000 EBX: 00000001 ECX: 00000000 EDX: 00000000
ESI: 00000000 EDI: c02ea000 EBP: 00000020 DS: 007b ES: 007b
CR0: 8005003b CR2: bfaac8d6 CR3: 0f333000 CR4: 00000600
 [<c0105bf6>] xen_idle+0x59/0x68
 [<c0105d09>] cpu_idle+0x8b/0xa4
 [<c02ec708>] start_kernel+0x2ed/0x2f3
primary.xml.gz             82% |====================     | 1.0 MB    08:20 
ETA BUG: soft lockup detected on CPU#0!

Pid: 0, comm:              swapper
EIP: 0061:[<c01040c7>] CPU: 0
EIP is at 0xc01040c7
 EFLAGS: 00000246    Not tainted  (2.6.15-1.1948_FC5guest)
EAX: 00000000 EBX: 00000001 ECX: 00000000 EDX: 00000000
ESI: 00000000 EDI: c02ea000 EBP: 00000020 DS: 007b ES: 007b
CR0: 8005003b CR2: bfaac8d6 CR3: 013aa000 CR4: 00000600
 [<c0105bf6>] xen_idle+0x59/0x68
 [<c0105d09>] cpu_idle+0x8b/0xa4
 [<c02ec708>] start_kernel+0x2ed/0x2f3
primary.xml.gz            100% |=========================| 1.2 MB    02:36
developmen: ####                                               391/4303BUG: 
soft lockup detected on CPU#0!

Pid: 11118, comm:                  yum
EIP: 0073:[<02af8681>] CPU: 0
EIP is at 0x2af8681
 ESP: 007b:bfbb60d0 EFLAGS: 00200246    Not tainted 
(2.6.15-1.1948_FC5guest)
EAX: 00000000 EBX: 02bb10a4 ECX: 00000000 EDX: 00000000
ESI: b7a523cc EDI: b7a4fbec EBP: bfbb60f8 DS: 007b ES: 007b
CR0: 80050033 CR2: 0ae9e000 CR3: 0f333000 CR4: 00000600
developmen: ################################################## 4303/4303
Added 4303 new packages, deleted 0 old in 329.86 seconds
primary.xml.gz            100% |=========================| 1.2 MB    00:13
extras-dev: ################################################## 3482/3482
Added 3482 new packages, deleted 0 old in 158.41 seconds
No Packages marked for Update/Obsoletion



I will include the information in the bug report, when I write it up 
tonight.
Jason


----- Original Message ----- 
From: "Dave Jones" <davej at redhat.com>
To: "For testers of Fedora Core development releases" 
<fedora-test-list at redhat.com>
Sent: Thursday, February 16, 2006 11:43 PM
Subject: Re: soft lockup detected on CPU#0! (Xen)


> On Thu, Feb 16, 2006 at 09:16:45PM +0900, Jason Montleon wrote:
> > Is anyone else getting error messages, if they start yum both on the 
> > host
> > and guest to the effect of "soft lockup detected on CPU#0!"  The guest
> > terminal throws more information and stop responding, but after several
> > seconds behaving normally where it left off.
>
> Please file a bug, with the output of dmesg after one of these
> has occured.  It could be indicative of a real problem, or
> it could be a false-positive that needs us to poke the watchdog
> timer in some routine where we currently spend too much time.
>
> Dave
>
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