Hello,
i just tried the current git master branch (last commit is
0fe149eb04e5e67f4d3ebc2ab9f2426356a308ba) as an external module with 2.6.23-rc3.
My Host ist 32bit, running 2.6.23-rc3 equippped with
"Intel(R) Core(TM)2 CPU 6600 @ 2.40GHz"
I start my Fedora Core 6 Image with
--
/usr/local/kvm/bin/qemu-system-x86_64 -net user -net nic,model=rtl8139 -vnc :1
-usbdevice tablet -monitor stdio -k de -hda fedora.img -cdrom
/isos/FC-6-i386-disc1.iso -boot c -m 512 -redir tcp:5555::22
--
This image was installed using kvm long time ago (kvm-20 or something).
It now crashes my host after approximatly 30 seconds:
--
BUG: unable to handle kernel NULL pointer dereference at virtual address
0000015c
printing eip:
*pde = 00000000
Oops: 0002 [#1]
SMP
Modules linked in: kvm_intel kvm
CPU: 0
EIP: 0060:[<c03c24ef>] Not tainted VLI
EFLAGS: 00010007 (2.6.23-rc3 #1)
EIP is at __sched_text_start+0x1bf/0x3f1
eax: c059a080 ebx: 00000000 ecx: f78d8200 edx: 00000000
esi: 00000000 edi: f7787550 ebp: f2bcef30 esp: f2bcef04
ds: 007b es: 007b fs: 00d8 gs: 0033 ss: 0068
Process qemu-system-x86 (pid: 8860, ti=f2bce000 task=f75d7550 task.ti=f2bce000)
Stack: c0000080 00000000 00000286 f88726d0 00000000 c2011000 c059e000 c2135000
f2bcef58 efddebd0 f2bcef4c efddebd0 f886762c 00000000 c2135000 c0125a4a
00000000 00000000 f88725f0 000000a1 efddebd0 00000000 c2135000 c0125a4a
Call Trace:
[<f88726d0>] preempt_notifier_unregister+0x3b/0x57 [kvm]
[<f886762c>] kvm_vcpu_block+0x52/0xab [kvm]
[<c0125a4a>] default_wake_function+0x0/0xc
[<f88725f0>] in_special_section+0x62/0x99 [kvm]
[<c0125a4a>] default_wake_function+0x0/0xc
[<f88676aa>] kvm_emulate_halt+0x25/0x46 [kvm]
[<f894e307>] kvm_handle_exit+0x7c/0x99 [kvm_intel]
[<f886860d>] __vcpu_run+0x180/0x1e2 [kvm]
[<f8867ffd>] complete_pio+0xc8/0xcf [kvm]
[<f886876d>] kvm_vcpu_ioctl_run+0xfe/0x129 [kvm]
[<f88693d6>] kvm_vcpu_ioctl+0x0/0x404 [kvm]
[<f88694ee>] kvm_vcpu_ioctl+0x118/0x404 [kvm]
[<c032aa67>] raid1_end_write_request+0x0/0x202
[<c0187afc>] bio_fs_destructor+0x0/0xb
[<c01874ce>] end_bio_bh_io_sync+0x0/0x39
[<c0187afc>] bio_fs_destructor+0x0/0xb
[<c032aa67>] raid1_end_write_request+0x0/0x202
[<c0187afc>] bio_fs_destructor+0x0/0xb
[<c032aa67>] raid1_end_write_request+0x0/0x202
[<c0187afc>] bio_fs_destructor+0x0/0xb
[<c01874ce>] end_bio_bh_io_sync+0x0/0x39
[<c0187afc>] bio_fs_destructor+0x0/0xb
[<c032aa67>] raid1_end_write_request+0x0/0x202
[<c0187afc>] bio_fs_destructor+0x0/0xb
[<c032aa67>] raid1_end_write_request+0x0/0x202
[<c0187afc>] bio_fs_destructor+0x0/0xb
[<c01874ce>] end_bio_bh_io_sync+0x0/0x39
[<c0187afc>] bio_fs_destructor+0x0/0xb
[<c032aa67>] raid1_end_write_request+0x0/0x202
[<c0187afc>] bio_fs_destructor+0x0/0xb
[<c032aa67>] raid1_end_write_request+0x0/0x202
[<c0187afc>] bio_fs_destructor+0x0/0xb
[<c01874ce>] end_bio_bh_io_sync+0x0/0x39
[<c0187afc>] bio_fs_destructor+0x0/0xb
[<c032aa67>] raid1_end_write_request+0x0/0x202
[<c0187afc>] bio_fs_destructor+0x0/0xb
[<c032aa67>] raid1_end_write_request+0x0/0x202
[<c0187afc>] bio_fs_destructor+0x0/0xb
[<c01874ce>] end_bio_bh_io_sync+0x0/0x39
[<c0187afc>] bio_fs_destructor+0x0/0xb
[<c02004ec>] __next_cpu+0x12/0x1f
[<c0124b00>] find_busiest_group+0x1bc/0x50e
[<c0150d22>] mempool_free+0x69/0x6e
[<c0150d22>] mempool_free+0x69/0x6e
[<c032a9e1>] raid1_end_read_request+0x97/0x11d
[<c0150d22>] mempool_free+0x69/0x6e
[<c0150d22>] mempool_free+0x69/0x6e
[<c032a9e1>] raid1_end_read_request+0x97/0x11d
[<c02004ec>] __next_cpu+0x12/0x1f
[<c023dc9e>] __add_entropy_words+0x62/0x193
[<c01fb661>] as_put_io_context+0x2a/0x48
[<c02bd84c>] scsi_run_queue+0xca/0xd5
[<c01f5164>] elv_queue_empty+0x1d/0x1e
[<c01f6feb>] blk_run_queue+0x1f/0x63
[<c02bd8bb>] scsi_next_command+0x25/0x2f
[<c02bd986>] scsi_end_request+0x9f/0xa7
[<c02bdb65>] scsi_io_completion+0x112/0x360
[<c0121dd2>] update_curr+0x13b/0x165
[<c0122184>] enqueue_entity+0xab/0xbd
[<c036a57d>] tcp_in_window+0xbc/0x3ee
[<c036a57d>] tcp_in_window+0xbc/0x3ee
[<c0140e5c>] clockevents_program_event+0xcf/0xd7
[<f88699a2>] kvm_vm_ioctl+0x1c8/0x25f [kvm]
[<c036afaa>] tcp_packet+0x481/0x48e
[<c023f2d8>] tty_ldisc_try+0x31/0x36
[<c023f2e9>] tty_ldisc_ref_wait+0xc/0x97
[<c0125adb>] __wake_up+0x32/0x43
[<c023f3dd>] tty_ldisc_deref+0x53/0x62
[<c02443a6>] normal_poll+0x0/0x126
[<c0174a80>] do_select+0x2d2/0x2df
[<c01746bf>] __pollwait+0x0/0x42
[<c015214b>] get_page_from_freelist+0xaa/0xca
[<c01521c5>] __alloc_pages+0x5a/0x2bb
[<c0377143>] ip_queue_xmit+0x34d/0x395
[<c037638f>] dst_output+0x0/0x7
[<c0151b94>] prep_new_page+0xb9/0xf1
[<c0151fd5>] buffered_rmqueue+0xff/0x117
[<c015214b>] get_page_from_freelist+0xaa/0xca
[<c01521c5>] __alloc_pages+0x5a/0x2bb
[<c02053a3>] copy_to_user+0x30/0x38
[<c0354130>] memcpy_toiovec+0x27/0x47
[<c0354648>] skb_copy_datagram_iovec+0x53/0x1ee
[<c037d9d7>] tcp_cleanup_rbuf+0xdb/0xfb
[<c03c3795>] _spin_lock_bh+0x8/0x18
[<c0350d79>] release_sock+0x10/0x52
[<c037e235>] tcp_recvmsg+0x67a/0x6b9
[<c03c4fce>] do_page_fault+0x289/0x5a4
[<c0350f2c>] sock_common_recvmsg+0x3e/0x54
[<c034d9b3>] sock_recvmsg+0xcf/0xe8
[<c03c39e2>] error_code+0x72/0x78
[<c013007b>] __do_proc_dointvec+0x184/0x2ce
[<c014efe9>] file_read_actor+0x82/0xe7
[<c0122184>] enqueue_entity+0xab/0xbd
[<c0122320>] enqueue_task_fair+0x2d/0x30
[<c012387e>] inc_nr_running+0x13/0x21
[<c012411a>] try_to_wake_up+0x293/0x29e
[<c0132d1d>] signal_wake_up+0x1e/0x2c
[<c0133526>] __group_send_sig_info+0x77/0x80
[<c0133628>] group_send_sig_info+0x54/0x5c
[<c01336db>] kill_pid_info+0x35/0x45
[<c0133891>] kill_something_info+0xd0/0xd6
[<c0134a21>] sys_kill+0x47/0x4c
[<f88693d6>] kvm_vcpu_ioctl+0x0/0x404 [kvm]
[<c0173e95>] do_ioctl+0x25/0x64
[<c017413a>] vfs_ioctl+0x187/0x195
[<c02053a3>] copy_to_user+0x30/0x38
[<c017417a>] sys_ioctl+0x32/0x4c
[<c0104dca>] syscall_call+0x7/0xb
=======================
Code: 01 0f 85 7b 01 00 00 c7 42 04 02 00 00 00 e9 6f 01 00 00 64 8b 1d 04 80 59
c0 39 4d e4 b8 80 a0 59 c0 0f 84 a2 00 00 00 8b 55 e4 <f0> 0f b3 9a 5c 01 00 00
89 c2 03 14 9d 80 63 55 c0 c7 42 04 01
EIP: [<c03c24ef>] __sched_text_start+0x1bf/0x3f1 SS:ESP 0068:f2bcef04
--
If you need more information just tell me :-)
Regards,
Sebastian
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