Hi All,
I am using kvm-88 user space package with linux-2.6.25 kernel. I f i run
following command system gets hang.
./qemu-system-x86_64 -hda new.qcow2 -cdrom rhel-server-5.3-i386-dvd.iso
-boot d -m 512
When i print dmesg it displays as follows:
BUG: unable to handle kernel NULL pointer dereference at virtual address
00000024
printing eip:
c0425fb0
*pde = 3963c067
Oops: 0000 [#1]
SMP
Modules linked in: ipt_MASQUERADE iptable_nat nf_nat nf_conntrack_ipv4
xt_state nf_conntrack nfnetlink ipt_REJECT xt_tcpudp iptable_filter
ip_tables x_tables bridge rfcomm l2cap bluetooth autofs4 sunrpc ib_iser
rdma_cm ib_cm iw_cm ib_sa ib_mad ib_core ib_addr iscsi_tcp libiscsi
scsi_transport_iscsi cpufreq_ondemand acpi_cpufreq loop dm_multipath ipv6
kvm_intel kvm snd_hda_intel snd_hda_codec snd_seq_dummy snd_seq_oss
snd_seq_midi_event snd_seq snd_seq_device snd_pcm_oss snd_mixer_oss
snd_pcm snd_timer snd soundcore via_rhine i2c_i801 parport_pc
snd_page_alloc mii parport i2c_core serio_raw pcspkr sg ata_generic
dm_snapshot dm_zero dm_mirror dm_mod ahci libata sd_mod scsi_mod ext3 jbd
mbcache uhci_hcd ohci_hcd ehci_hcd
CPU: 0
EIP: 0060:[<c0425fb0>] Not tainted VLI
EFLAGS: 00010246 (2.6.21.kvm-25-21 #14)
EIP is at do_exit+0x2ca/0x3c8
eax: 00000000 ebx: f7c51dc0 ecx: 00000001 edx: f7bc80f0
esi: f7bc80f0 edi: 00000000 ebp: 00000100 esp: f5372f84
ds: 007b es: 007b fs: 00d8 gs: 0000 ss: 0068
Process qemu-system-x86 (pid: 3668[#0], ti=f5372000 task=f7bc80f0
task.ti=f5372000)
Stack: f7bc80f0 00000100 f5372000 c042cdf8 f7bb1580 f7a15ac0 00000100
f5372000
c0426144 00000001 00d55274 00d55274 c0404db0 00000001 b77956d0
00000000
00d55274 00d55274 b7795738 000000fc ffff007b c040007b c0600000
000000fc
Call Trace:
[<c042cdf8>] signal_wake_up+0x1e/0x2c
[<c0426144>] sys_exit_group+0x0/0xd
[<c0404db0>] syscall_call+0x7/0xb
[<c0600000>] packet_setsockopt+0x13f/0x170
=======================
Code: ab 04 00 e8 f7 d4 fd ff 85 ff 74 19 8b 86 6c 04 00 00 83 b8 b0 00 00
00 00 74 0a b8 01 00 00 00 e8 7e 64 10 00 8b 46 04 8b 40 04 <8b> 40 24 e8
94 0d 02 00 8b 86 a4 00 00 00 85 c0 74 08 8b 40 04
EIP: [<c0425fb0>] do_exit+0x2ca/0x3c8 SS:ESP 0068:f5372f84
Fixing recursive fault but reboot is needed!
Please suggest me how to fix this bug..
Thanks in advance :-))
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