I recieve this bug when I run fedora 9 as a virtual machine "Guest os"
at a xen centos 5 host machine
xm console OraceleFC9
PCI: Fatal: No config space access function found
isapnp: Write Data Register 0xa79 already used
i8042.c: No controller found.
Eeek! page_mapcount(page) went negative! (-1)
page pfn = 31447
page->flags = 80000014
page->count = 0
page->mapping = 00000000
vma->vm_ops = 0x0
------------[ cut here ]------------
kernel BUG at mm/rmap.c:669!
invalid opcode: 0000 [#1] SMP
Modules linked in: bridge bnep rfcomm l2cap bluetooth fuse sunrpc
ip6t_REJECT xt_tcpudp nf_conntrack_ipv6 xt_state nf_conntrack
ip6table_filter ip6_tables x_tables loop dm_multipath ipv6 joydev
pcspkr xen_netfront dm_snapshot dm_zero dm_mirror dm_mod xen_blkfront
ext3 jbd mbcache uhci_hcd ohci_hcd ehci_hcd
Pid: 1498, comm: vsftpd Not tainted (2.6.25-2.fc9.i686.xen #1)
EIP: 0061:[<c0478e84>] EFLAGS: 00210246 CPU: 0
EIP is at page_remove_rmap+0xcf/0xec
EAX: 00000000 EBX: c16ad8e0 ECX: c06da491 EDX: 00000000
ESI: ebca1478 EDI: c16ad8e0 EBP: ebdebe90 ESP: ebdebe88
DS: 007b ES: 007b FS: 00d8 GS: 0000 SS: 0069
Process vsftpd (pid: 1498, ti=ebdeb000 task=ebd32000 task.ti=ebdeb000)
Stack: 3a95c065 00000000 ebdebf1c c04721e9 c079f008 7275376f c07a2250 b7f83fff
b7f83fff 00000000 ebca1478 ebdebf34 00000001 002f5c4a b7f83000 00000000
b7f84000 ebd45df8 ebce0010 c040455a c1085000 c188e260 c0000000 ebdebf0c
Call Trace:
[<c04721e9>] ? unmap_vmas+0x330/0x611
[<c040455a>] ? pgd_walk+0x16a/0x175
[<c0475b61>] ? exit_mmap+0x63/0xd6
[<c04293ec>] ? mmput+0x37/0x79
[<c042c90c>] ? exit_mm+0xda/0xdf
[<c042df26>] ? do_exit+0x1ee/0x554
[<c042e2fa>] ? do_group_exit+0x6e/0x85
[<c042e324>] ? sys_exit_group+0x13/0x15
[<c0408baa>] ? syscall_call+0x7/0xb
=======================
Code: 8b 46 44 8b 50 08 b8 c7 a4 6d c0 e8 a8 22 fd ff 8b 46 4c 85 c0
74 14 8b 40 10 85 c0 74 0d 8b 50 2c b8 e5 a4 6d c0 e8 8d 22 fd ff <0f>
0b eb fe 8b 53 10 89 d8 83 e2 01 f7 da 83 c2 04 e8 d2 67 ff
EIP: [<c0478e84>] page_remove_rmap+0xcf/0xec SS:ESP 0069:ebdebe88
---[ end trace 2392674e6973869c ]---
Fixing recursive fault but reboot is needed!
BUG: scheduling while atomic: vsftpd/1498/0x00000001
Pid: 1498, comm: vsftpd Tainted: G D 2.6.25-2.fc9.i686.xen #1
[<c042827e>] __schedule_bug+0x4b/0x50
[<c06331e0>] schedule+0x97/0x6db
[<c0478e98>] ? page_remove_rmap+0xe3/0xec
[<c042dde0>] do_exit+0xa8/0x554
[<c040a19d>] die+0x15c/0x164
[<c0635926>] do_trap+0x8a/0xa3
[<c040a564>] ? do_invalid_op+0x0/0x76
[<c040a5d0>] do_invalid_op+0x6c/0x76
[<c0478e84>] ? page_remove_rmap+0xcf/0xec
[<c0634ff1>] ? _spin_unlock_irqrestore+0x10/0x14
[<c042b571>] ? release_console_sem+0x195/0x19d
[<c042ba58>] ? vprintk+0x301/0x330
[<ee264ab4>] ? ext3_dirty_inode+0x5f/0x67 [ext3]
[<c04d3fa7>] ? avc_has_perm+0x39/0x43
[<c0635282>] error_code+0x72/0x78
[<c0478e84>] ? page_remove_rmap+0xcf/0xec
[<c04721e9>] unmap_vmas+0x330/0x611
[<c040455a>] ? pgd_walk+0x16a/0x175
[<c0475b61>] exit_mmap+0x63/0xd6
[<c04293ec>] mmput+0x37/0x79
[<c042c90c>] exit_mm+0xda/0xdf
[<c042df26>] do_exit+0x1ee/0x554
[<c042e2fa>] do_group_exit+0x6e/0x85
[<c042e324>] sys_exit_group+0x13/0x15
[<c0408baa>] syscall_call+0x7/0xb
=======================
------------[ cut here ]------------
kernel BUG at arch/x86/kernel/paravirt.c:241!
invalid opcode: 0000 [#2] SMP
Modules linked in: bridge bnep rfcomm l2cap bluetooth fuse sunrpc
ip6t_REJECT xt_tcpudp nf_conntrack_ipv6 xt_state nf_conntrack
ip6table_filter ip6_tables x_tables loop dm_multipath ipv6 joydev
pcspkr xen_netfront dm_snapshot dm_zero dm_mirror dm_mod xen_blkfront
ext3 jbd mbcache uhci_hcd ohci_hcd ehci_hcd
Pid: 1498, comm: vsftpd Tainted: G D (2.6.25-2.fc9.i686.xen #1)
EIP: 0061:[<c041c416>] EFLAGS: 00210002 CPU: 0
EIP is at paravirt_enter_lazy_cpu+0x15/0x22
EAX: c07a224c EBX: ec04b700 ECX: ebd32254 EDX: 010ec000
ESI: ebc82000 EDI: ebcb98c0 EBP: ebdebce0 ESP: ebdebce0
DS: 007b ES: 007b FS: 00d8 GS: 0000 SS: 0069
Process vsftpd (pid: 1498, ti=ebdeb000 task=ebd32000 task.ti=ebdeb000)
Stack: ebdebd48 c063366f 00000000 c07a3438 c07a6480 c07a6480 c07a6480 ebd32000
ebd32254 c1892480 00000000 c1892480 925beaae 00000002 c0478e98 ebd32254
00000000 ebdebe50 ebdebe50 00000200 ebd32000 ebdebd44 c0638d12 ebdebe50
Call Trace:
[<c063366f>] ? schedule+0x526/0x6db
[<c0478e98>] ? page_remove_rmap+0xe3/0xec
[<c042dde0>] ? do_exit+0xa8/0x554
[<c040a19d>] ? die+0x15c/0x164
[<c0635926>] ? do_trap+0x8a/0xa3
[<c040a564>] ? do_invalid_op+0x0/0x76
[<c040a5d0>] ? do_invalid_op+0x6c/0x76
[<c0478e84>] ? page_remove_rmap+0xcf/0xec
[<c0634ff1>] ? _spin_unlock_irqrestore+0x10/0x14
[<c042b571>] ? release_console_sem+0x195/0x19d
[<c042ba58>] ? vprintk+0x301/0x330
[<ee264ab4>] ? ext3_dirty_inode+0x5f/0x67 [ext3]
[<c04d3fa7>] ? avc_has_perm+0x39/0x43
[<c0635282>] ? error_code+0x72/0x78
[<c0478e84>] ? page_remove_rmap+0xcf/0xec
[<c04721e9>] ? unmap_vmas+0x330/0x611
[<c040455a>] ? pgd_walk+0x16a/0x175
[<c0475b61>] ? exit_mmap+0x63/0xd6
[<c04293ec>] ? mmput+0x37/0x79
[<c042c90c>] ? exit_mm+0xda/0xdf
[<c042df26>] ? do_exit+0x1ee/0x554
[<c042e2fa>] ? do_group_exit+0x6e/0x85
[<c042e324>] ? sys_exit_group+0x13/0x15
[<c0408baa>] ? syscall_call+0x7/0xb
=======================
Code: c0 83 3c 02 01 89 e5 74 04 0f 0b eb fe c7 04 02 00 00 00 00 5d
c3 55 b8 4c 22 7a c0 64 8b 15 10 21 7a c0 83 3c 02 00 89 e5 74 04 <0f>
0b eb fe c7 04 02 02 00 00 00 5d c3 55 b8 4c 22 7a c0 64 8b
EIP: [<c041c416>] paravirt_enter_lazy_cpu+0x15/0x22 SS:ESP 0069:ebdebce0
---[ end trace 2392674e6973869c ]---
Fixing recursive fault but reboot is needed!
BUG: scheduling while atomic: rsyslogd/1154/0x00000001
Pid: 1498, comm: vsftpd Tainted: G D 2.6.25-2.fc9.i686.xen #1
[<c042827e>] __schedule_bug+0x4b/0x50
[<c06331e0>] schedule+0x97/0x6db
[<c041c42a>] ? paravirt_leave_lazy_cpu+0x7/0x22
[<c042dde0>] do_exit+0xa8/0x554
[<c040a19d>] die+0x15c/0x164
[<c0635926>] do_trap+0x8a/0xa3
[<c040a564>] ? do_invalid_op+0x0/0x76
[<c040a5d0>] do_invalid_op+0x6c/0x76
[<c041c416>] ? paravirt_enter_lazy_cpu+0x15/0x22
[<c0405af6>] ? xen_sched_clock+0x1a/0x5d
[<c042096f>] ? __dequeue_entity+0x73/0x7b
[<c0635282>] error_code+0x72/0x78
[<c041c416>] ? paravirt_enter_lazy_cpu+0x15/0x22
[<c063366f>] schedule+0x526/0x6db
[<c0478e98>] ? page_remove_rmap+0xe3/0xec
[<c042dde0>] do_exit+0xa8/0x554
[<c040a19d>] die+0x15c/0x164
[<c0635926>] do_trap+0x8a/0xa3
[<c040a564>] ? do_invalid_op+0x0/0x76
[<c040a5d0>] do_invalid_op+0x6c/0x76
[<c0478e84>] ? page_remove_rmap+0xcf/0xec
[<c0634ff1>] ? _spin_unlock_irqrestore+0x10/0x14
[<c042b571>] ? release_console_sem+0x195/0x19d
[<c042ba58>] ? vprintk+0x301/0x330
[<ee264ab4>] ? ext3_dirty_inode+0x5f/0x67 [ext3]
[<c04d3fa7>] ? avc_has_perm+0x39/0x43
[<c0635282>] error_code+0x72/0x78
[<c0478e84>] ? page_remove_rmap+0xcf/0xec
[<c04721e9>] unmap_vmas+0x330/0x611
[<c040455a>] ? pgd_walk+0x16a/0x175
[<c0475b61>] exit_mmap+0x63/0xd6
[<c04293ec>] mmput+0x37/0x79
[<c042c90c>] exit_mm+0xda/0xdf
[<c042df26>] do_exit+0x1ee/0x554
[<c042e2fa>] do_group_exit+0x6e/0x85
[<c042e324>] sys_exit_group+0x13/0x15
[<c0408baa>] syscall_call+0x7/0xb
=======================
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