[Xen-users] domU kernel panic report

[Tom Marshall <tommy@xxxxxxxxxxxxxxxx>]

I just saw this kernel panic.  I've been running Xen for over a year, and
this particular combination of software for a couple weeks.  I've never seen
a kernel panic under Xen before (I know, knock on wood...) so I thought it
might be worthwhile to report.

Setup...

Xen 3.0.4 hypervisor, locally compiled, PAE enabled
dom0 is Ubuntu Edgy, 2.6.16.33-xen0, locally compiled, PAE enabled
domU is CentOS 3.8, 2.4.21-47.EL.xs10xenU/i686, from Xen package

Panic text from console...

Unable to handle kernel paging request at virtual address e332c000              
           
 printing eip:                                                                  
           
c01ab365
*pde = ma 00000000 pa fffff000
Oops: 0003
nfs lockd sunrpc ext3 jbd
CPU:    1
EIP:    0061:[<c01ab365>]    Not tainted
EFLAGS: 00010206

EIP is at _arch_exit_mmap [kernel] 0x2f5 (2.4.21-47.EL.xs10xenU/i686)
eax: 00000000   ebx: 00000000   ecx: 00000400   edx: e332c000
esi: a4fc5001   edi: e332c000   ebp: 00000001   esp: c1f6bec8
ds: 0068   es: 0068   ss: 0068
Process bash (pid: 15427, stackpage=c1f6b000)
Stack: e332c000 00000000 c01a9eed e332c000 00000000 00001000 e40a0008 c02f3d60
       c1f6a000 cf729a60 e40a0000 eb8dbbe0 d5b6b380 cd090000 eb8dbbe0 c010e13a
       eb8dbbe0 00000000 00000020 00000000 c010e417 eb8dbbe0 d5b6b380 000000f8
Call Trace:   [<c01a9eed>] pgd_alloc [kernel] 0x7d (0xc1f6bed0)
[<c010e13a>] mm_init [kernel] 0xaa (0xc1f6bf04)
[<c010e417>] copy_mm [kernel] 0xc7 (0xc1f6bf18)
[<c010ee66>] copy_process [kernel] 0x4d6 (0xc1f6bf3c)
[<c010f64e>] do_fork [kernel] 0x4e (0xc1f6bf6c)
[<c019ac37>] sys_fork [kernel] 0x37 (0xc1f6bfa4)

Code: f3 ab eb a7 8d b4 26 00 00 00 00 c1 e9 02 89 d7 f3 ab aa eb

Kernel panic: Fatal exception

-- 
To use violence is to already be defeated.
        -- Chinese proverb

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