From mboxrd@z Thu Jan 1 00:00:00 1970
From: bugzilla-daemon@bugzilla.kernel.org
Subject: [Bug 27052] Module KVM : unable to handle kernel NULL pointer
dereference at
Date: Wed, 19 Jan 2011 11:34:22 GMT
Message-ID: <201101191134.p0JBYMjV031702@demeter2.kernel.org>
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--- Comment #3 from prochazka 2011-01-19 11:34:21 ---
Sorry,
witout hugepage, bug is alway here :
rmap_remove: ffff8802455bfff8 0->BUG
------------[ cut here ]------------
kernel BUG at arch/x86/kvm/mmu.c:695!
invalid opcode: 0000 [#1] SMP
last sysfs file: /sys/devices/system/cpu/cpu7/cache/index2/shared_cpu_map
CPU 2
Modules linked in: kvm_intel kvm
Pid: 28761, comm: qemu Not tainted 2.6.37 #3 MS-9192-01S/Express5800/120Rj-2
[N8100-1407E]
RIP: 0010:[] [] drop_spte+0x1de/0x1f0
[kvm]
RSP: 0018:ffff88078db35a18 EFLAGS: 00010292
RAX: 000000000000002b RBX: ffff8802455bfff8 RCX: 000000000003ffff
RDX: ffffffff81d970c8 RSI: 0000000000000082 RDI: 0000000000000246
RBP: ffff88078db35a28 R08: 00000000000106f1 R09: 0000000000000000
R10: 0000000000000000 R11: 000000000000000f R12: ffff8801cd2c8000
R13: 00000000010147fc R14: ffff88078da98000 R15: ffff88078db35a84
FS: 00007f4085c02710(0000) GS:ffff8800cfc80000(0000) knlGS:0000000000000000
CS: 0010 DS: 002b ES: 002b CR0: 000000008005003b
CR2: 000000001806107a CR3: 00000007641ee000 CR4: 00000000000026e0
DR0: 0000000000000001 DR1: 0000000000000002 DR2: 0000000000000001
DR3: 000000000000000a DR6: 00000000ffff0ff0 DR7: 0000000000000400
Process qemu (pid: 28761, threadinfo ffff88078db34000, task ffff8801b8264000)
Stack:
0000000000000ff8 ffff88077abdb280 ffff88078db35ab8 ffffffffa0021075
0000000400000001 000000000000add2 00000000006d5f42 0000000000000001
0000000000000000 ffffea0000000001 ffff88078db35a78 0000001f010031ed
Call Trace:
[] paging32_sync_page+0xe5/0x1c0 [kvm]
[] __kvm_sync_page+0x5a/0xb0 [kvm]
[] mmu_sync_children+0x249/0x350 [kvm]
[] ? kvm_mmu_pte_write+0x29a/0xaa0 [kvm]
[] ? seg_base+0x1a/0x30 [kvm]
[] ? mmu_free_roots+0xc2/0x180 [kvm]
[] ? kvm_mmu_get_page+0x4b5/0x710 [kvm]
[] mmu_sync_roots+0xc8/0x160 [kvm]
[] kvm_mmu_load+0x80/0x420 [kvm]
[] kvm_arch_vcpu_ioctl_run+0xc95/0xe20 [kvm]
[] ? native_load_tr_desc+0x11/0x20
[] ? kvm_arch_vcpu_load+0x50/0x140 [kvm]
[] kvm_vcpu_ioctl+0x561/0x860 [kvm]
[] ? schedule+0x31c/0x990
[] ? kvm_vm_ioctl+0x0/0x3e0 [kvm]
[] do_vfs_ioctl+0xa7/0x560
[] ? sys_futex+0xce/0x170
[] sys_ioctl+0x4f/0x80
[] system_call_fastpath+0x16/0x1b
Code: e1 0f 0b eb fe 48 89 de 48 c7 c7 4e ab 03 a0 31 c0 e8 2a 20 99 e1 0f 0b
eb fe 48 89 de 48 c7 c7 33 ab 03 a0 31 c0 e8 15 20 99 e1 <0f> 0b eb fe 66 66 66
66 66 2e 0f 1f 84 00 00 00 00 00 55 48 89
RIP [] drop_spte+0x1de/0x1f0 [kvm]
RSP
---[ end trace 75c63c522243bec6 ]---
rmap_remove: ffff8807d245fff8 0->BUG
------------[ cut here ]------------
kernel BUG at arch/x86/kvm/mmu.c:695!
invalid opcode: 0000 [#2] SMP
last sysfs file: /sys/devices/system/cpu/cpu7/cache/index2/shared_cpu_map
CPU 4
Modules linked in: kvm_intel kvm
Pid: 17775, comm: qemu Tainted: G D 2.6.37 #3
MS-9192-01S/Express5800/120Rj-2 [N8100-1407E]
RIP: 0010:[] [] drop_spte+0x1de/0x1f0
[kvm]
RSP: 0018:ffff88002646ba18 EFLAGS: 00010292
RAX: 000000000000002b RBX: ffff8807d245fff8 RCX: 000000000003ffff
RDX: ffffffff81d970c8 RSI: 0000000000000082 RDI: 0000000000000246
RBP: ffff88002646ba28 R08: 0000000000011256 R09: 0000000000000000
R10: 0000000000000000 R11: 000000000000000f R12: ffff88002645c000
R13: 00000000098d67fc R14: ffff8800264e0000 R15: ffff88002646ba84
FS: 00007ff5b0c75710(0000) GS:ffff8800cfd00000(0000) knlGS:0000000000000000
CS: 0010 DS: 002b ES: 002b CR0: 000000008005003b
CR2: 00000000e2248000 CR3: 0000000026435000 CR4: 00000000000026e0
DR0: 00000000000000a0 DR1: 0000000000000000 DR2: 0000000000000003
DR3: 00000000000000b0 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Process qemu (pid: 17775, threadinfo ffff88002646a000, task ffff88005d4dc000)
Stack:
0000000000000ff8 ffff8801b7ef10a0 ffff88002646bab8 ffffffffa0021075
0000000000000001 000000000001045c 0000000000228e71 0000000000000001
0000000000000000 ffffea0000000001 ffff88002646ba78 00000008010031ed
Call Trace:
[] paging32_sync_page+0xe5/0x1c0 [kvm]
[] __kvm_sync_page+0x5a/0xb0 [kvm]
[] mmu_sync_children+0x249/0x350 [kvm]
[] ? x86_emulate_insn+0x1e41/0x6350 [kvm]
[] ? seg_base+0x1a/0x30 [kvm]
[] ? mmu_free_roots+0xc2/0x180 [kvm]
[] ? kvm_mmu_get_page+0x4b5/0x710 [kvm]
[] mmu_sync_roots+0xc8/0x160 [kvm]
[] kvm_mmu_load+0x80/0x420 [kvm]
[] kvm_arch_vcpu_ioctl_run+0xc95/0xe20 [kvm]
[] ? kvm_arch_vcpu_load+0x50/0x140 [kvm]
[] kvm_vcpu_ioctl+0x561/0x860 [kvm]
[] ? sys_sendto+0x138/0x140
[] do_vfs_ioctl+0xa7/0x560
[] sys_ioctl+0x4f/0x80
[] system_call_fastpath+0x16/0x1b
Code: e1 0f 0b eb fe 48 89 de 48 c7 c7 4e ab 03 a0 31 c0 e8 2a 20 99 e1 0f 0b
eb fe 48 89 de 48 c7 c7 33 ab 03 a0 31 c0 e8 15 20 99 e1 <0f> 0b eb fe 66 66 66
66 66 2e 0f 1f 84 00 00 00 00 00 55 48 89
RIP [] drop_spte+0x1de/0x1f0 [kvm]
RSP
---[ end trace 75c63c522243bec7 ]---
DEV-10.98.98.1:~#
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