[Xen-users] xm create - random kernel problem

[marek cervenka <cervajs@xxxxxxxxxx>]

hi,

i have random(sometimes domain create ok, sometimes not) problems with 
creating domains
sw:centos4/xen 3.0.2 + linux-2.6.16.16 patch,  PAE mode enabled
hw: 2x xeon, 4GB ram, 32-bit mode


------------[ cut here ]------------
kernel BUG at <bad filename>:50307!
invalid opcode: 0000 [#1]
SMP
Modules linked in: xt_physdev iptable_filter ip_tables x_tables loop 
bridge ipv6 binfmt_misc dm_mirror dm_mod uhci_hcd sata_mv i2c_i801 
i2c_core shpchp pci_hotplug e1000 floppy ext3 jbd raid1 ata_piix libata 
sd_mod scsi_mod
CPU:    1
EIP:    0061:[<c0112561>]    Not tainted VLI
EFLAGS: 00010282   (2.6.16.16-xen #5)
EIP is at pgd_ctor+0x30/0x36
eax: fffffff4   ebx: 00000001   ecx: 00000001   edx: 00000000
esi: c0945ec0   edi: eb2a32dc   ebp: eb2a32c0   esp: e5fade5c
ds: 007b   es: 007b   ss: 0069
Process khelper (pid: 499, threadinfo=e5fac000 task=ed626030)
Stack: <0>df1ca000 00000000 00000020 c0160585 df1ca000 c0945ec0 00000001 
eb2a32c0
       df1ca000 c0943f00 00000000 c016077a c0945ec0 eb2a32c0 00000001 
000000d0
       c0943f2c 00000001 000000d0 c082b900 c0943f10 0000000c ed7e0540 
c01609e9
Call Trace:
 [<c0160585>] cache_init_objs+0x4d/0x72
 [<c016077a>] cache_grow+0x132/0x1d2
 [<c01609e9>] cache_alloc_refill+0x1cf/0x20b
 [<c0160c37>] kmem_cache_alloc+0x84/0x88
 [<c011259a>] pgd_alloc+0x1c/0x32a
 [<c011c32d>] mm_init+0x86/0xb3
 [<c011c38c>] mm_alloc+0x32/0x3b
 [<c017074c>] do_execve+0x7a/0x240
 [<c01722e5>] getname+0x38/0x5c
 [<c01039ca>] sys_execve+0x3d/0x87
 [<c0104d61>] syscall_call+0x7/0xb
 [<c012f5db>] ____call_usermodehelper+0xdb/0x101
 [<c012f500>] ____call_usermodehelper+0x0/0x101
 [<c0102eb5>] kernel_thread_helper+0x5/0xb
Code: 04 54 3d c0 00 74 04 83 c4 0c c3 8b 44 24 10 c7 44 24 08 20 00 00 00 
c7 44 24 04 00 00 00 00 89 04 24 e8 a2 39 00 00 85 c0 74 dc <0f> 0b 83 c4 
0c c3 80 3d 04 54 3d c0 00 74 01 c3 c7 44 24 08 00
 <0>------------[ cut here ]------------
kernel BUG at <bad filename>:50307!
invalid opcode: 0000 [#2]
SMP
Modules linked in: xt_physdev iptable_filter ip_tables x_tables loop 
bridge ipv6 binfmt_misc dm_mirror dm_mod uhci_hcd sata_mv i2c_i801 
i2c_core shpchp pci_hotplug e1000 floppy ext3 jbd raid1 ata_piix libata 
sd_mod scsi_mod
CPU:    0
EIP:    0061:[<c0112561>]    Not tainted VLI
EFLAGS: 00010282   (2.6.16.16-xen #5)
EIP is at pgd_ctor+0x30/0x36
eax: fffffff4   ebx: 00000001   ecx: 00000001   edx: 00000000
esi: c0945ec0   edi: ed578c5c   ebp: ed578c40   esp: e6669dec
ds: 007b   es: 007b   ss: 0069
Process xen-backend.age (pid: 480, threadinfo=e6668000 task=c0810a90)
Stack: <0>e667c000 00000000 00000020 c0160585 e667c000 c0945ec0 00000001 
ed578c40
       e667c000 c0943f00 00000000 c016077a c0945ec0 ed578c40 00000001 
000000d0
       c0943f2c 00000001 000000d0 c051d580 c0943f10 0000000c c09429c0 
c01609e9
Call Trace:
 [<c0160585>] cache_init_objs+0x4d/0x72
 [<c016077a>] cache_grow+0x132/0x1d2
 [<c01609e9>] cache_alloc_refill+0x1cf/0x20b
 [<c0160c37>] kmem_cache_alloc+0x84/0x88
 [<c011259a>] pgd_alloc+0x1c/0x32a
 [<c01804a5>] expand_fdtable+0x68/0xa0
 [<c011c32d>] mm_init+0x86/0xb3
 [<c011c567>] dup_mm+0x59/0x321
 [<c01608e6>] cache_alloc_refill+0xcc/0x20b
 [<c011c891>] copy_mm+0x62/0x80
 [<c011d1c1>] copy_process+0x3fe/0xe12
 [<c01632cc>] sys_faccessat+0x154/0x159
 [<c011dcc9>] do_fork+0x68/0x195
 [<c012b9d9>] sys_rt_sigprocmask+0x86/0x10a
 [<c010390c>] sys_fork+0x37/0x3b
 [<c0104d61>] syscall_call+0x7/0xb
Code: 04 54 3d c0 00 74 04 83 c4 0c c3 8b 44 24 10 c7 44 24 08 20 00 00 00 
c7 44 24 04 00 00 00 00 89 04 24 e8 a2 39 00 00 85 c0 74 dc <0f> 0b 83 c4 
0c c3 80 3d 04 54 3d c0 00 74 01 c3 c7 44 24 08 00
 <6>device vif8.0 entered promiscuous mode
xenbr0: port 10(vif8.0) entering learning state
xenbr0: topology change detected, propagating
xenbr0: port 10(vif8.0) entering forwarding state
xen_net: Memory squeeze in netback driver.
xen_net: Memory squeeze in netback driver.
xen_net: Memory squeeze in netback driver.
xen_net: Memory squeeze in netback driver.
xen_net: Memory squeeze in netback driver.
xen_net: Memory squeeze in netback driver.
xen_net: Memory squeeze in netback driver.
xen_net: Memory squeeze in netback driver.
xen_net: Memory squeeze in netback driver.
xen_net: Memory squeeze in netback driver.
printk: 42 messages suppressed.
xen_net: Memory squeeze in netback driver.
xenbr0: port 10(vif8.0) entering disabled state
device vif8.0 left promiscuous mode
xenbr0: port 10(vif8.0) entering disabled state


---------------------------------------
Marek Cervenka
Centrum Vypocetni Techniky
CVT             - http://cvt.fpf.slu.cz
FPF SLU OPAVA   - http://www.fpf.slu.cz
LCNA            - http://lcna.slu.cz
=======================================


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