RE: [Xen-devel] BUG: soft lockup detected on CPU#0! on 3.0.2-2

["Ian Pratt" <m+Ian.Pratt@xxxxxxxxxxxx>]

> Upgrading from SMB to CIFS looked like it fixed the problem for around
a
> week.  It's back, but nobody can reproduce it yet.
> 
> I had them on the 3.0.3 hg clone for a while, but as soon as they
figured
> out that the problem appeared to be fixed by the SMB->CIFS fix, they
moved
> back to 3.0.2-2. This error occurred on 3.0.2-2.
> 
> If I can get them to reproduce the error, I will test with 3.0-testing
> 
> Now, this is a bug, right?  this isn't just one of the VMs being
heavily
> used?  because the VM in question is running a massive Java app that
> would stress the server even if I ran it native.

It's hard to tell for sure, but this doesn't look to me like a xen
issue. It may be possible to repro on an equivalent native kernel.
Was the guest still pingable or did it crash?

Ian

 
> Pid: 23136, comm:                  csh
> EIP: 0061:[<c0168c05>] CPU: 1
> EIP is at generic_fillattr+0x6d/0xa4
>   EFLAGS: 00000202    Tainted: GF      (2.6.16-xen-automount #1)
> EAX: 0000448b EBX: 00000000 ECX: 0000448b EDX: 00000001
> ESI: 00000000 EDI: d113e678 EBP: cc1a3f64 DS: 007b ES: 007b
> CR0: 8005003b CR2: 08127000 CR3: 30abb000 CR4: 00000640
>   [<f4a37a66>] cifs_getattr+0x32/0x3a [cifs]
>   [<c0168e17>] vfs_fstat+0x33/0x44
>   [<c016949b>] sys_fstat64+0x18/0x36
>   [<c01541ff>] get_swap_page+0xbf/0x270
>   [<c015e900>] sys_open+0x27/0x2b
>   [<c0104be1>] syscall_call+0x7/0xb
>   CIFS VFS: No response for cmd 50 mid 46953
> 
>   CIFS VFS: Error 0xffffff90 on cifs_get_inode_info in lookup of\
> \utils\pogo\home\cdc-ops\bin\mv_gamelogs
> 
>   CIFS VFS: Error 0xffffff90 on cifs_get_inode_info in lookup of\
> \utils\pogo\home\cdc-ops\bin\mv_gamelogs
> 
>   CIFS VFS: Error 0xffffff90 on cifs_get_inode_info in lookup of\
> \utils\pogo\home\cdc-ops\bin\mv_gamelogs
> 
>   CIFS VFS: Error 0xffffff90 on cifs_get_inode_info in lookup of\
> \utils\pogo\home\cdc-ops\bin\mv_gamelogs
> 
> 
> 
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