On Fri, 18 Apr 2008 14:18:16 +0200 Guillaume Thouvenin <[EMAIL PROTECTED]> wrote:
> I added the code do dump the instruction and it seems that it's the > emulation of 0xe6 (== out imm8, al) that failed. I made modifications > to emulate it (see below) and now I have another problem in kvm > userspace with the following message (and the emulation doesn't work): > > enterprise:~ $ kvm_run: Operation not permitted > enterprise:~ $ kvm_run returned -1 Ok for this one it seems to be a wrong value in the opcode_table[]. Now it generates an oops. I'm investigating... Regards, Guillaume --- Apr 18 14:48:53 enterprise kernel: [22321.010006] handle_vmentry_failure: invalid guest state Apr 18 14:48:53 enterprise kernel: [22321.011953] handle_vmentry_failure: start emulation Apr 18 14:48:53 enterprise kernel: [22321.015875] c->op_bytes == 2 Apr 18 14:48:53 enterprise kernel: [22321.019862] eip == 0x6e18 Message from [EMAIL PROTECTED] at Fri Apr 18 14:48:54 2008 ... enterprise kernel: [22321.027850] Oops: 0000 [2] SMP Message from [EMAIL PROTECTED] at Fri Apr 18 14:48:54 2008 ... enterprise kernel: [22321.027850] Code: 75 58 48 8b 7d 00 e8 64 4f ff ff f6 85 98 00 00 00 01 ba 01 00 00 00 75 04 0f b6 55 4c 48 8b 75 58 48 8d 8d a0 00 00 00 48 89 c7 <ff> 50 08 e9 f1 07 00 00 8a 45 4c 3c 02 74 0a 3c 04 0f 85 73 13 Message from [EMAIL PROTECTED] at Fri Apr 18 14:48:54 2008 ... enterprise kernel: [22321.027850] CR2: 0000000000000008 Apr 18 14:48:54 enterprise kernel: [22321.027850] PGD 36f1a8067 PUD 327c17067 PMD 0 Apr 18 14:48:54 enterprise kernel: [22321.027850] CPU 1 Apr 18 14:48:54 enterprise kernel: [22321.027850] Modules linked in: kvm_intel kvm aic94xx libsas scsi_transport_sas [last unloaded: kvm] Apr 18 14:48:54 enterprise kernel: [22321.027850] Pid: 7814, comm: qemu-system-x86 Tainted: G D 2.6.25 #207 Apr 18 14:48:54 enterprise kernel: [22321.027850] RIP: 0010:[<ffffffff88043933>] [<ffffffff88043933>] :kvm:x86_emulate_insn+0x2d97/0x414c Apr 18 14:48:54 enterprise kernel: [22321.027850] RSP: 0018:ffff81033005fb68 EFLAGS: 00010202 Apr 18 14:48:54 enterprise kernel: [22321.027850] RAX: 0000000000000000 RBX: ffff810344cf9440 RCX: ffff810344cf9498 Apr 18 14:48:54 enterprise kernel: [22321.027850] RDX: 0000000000000001 RSI: 000000000000007a RDI: 0000000000000000 Apr 18 14:48:54 enterprise kernel: [22321.027850] RBP: ffff810344cf93f8 R08: 0000000000000000 R09: 0000000000000000 Apr 18 14:48:54 enterprise kernel: [22321.027850] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 Apr 18 14:48:54 enterprise kernel: [22321.027850] R13: ffffffff88051e50 R14: ffff810344cf9498 R15: 0000000000007ad6 Apr 18 14:48:54 enterprise kernel: [22321.027850] FS: 000000004108b950(0000) GS:ffff810397c250c0(0000) knlGS:0000000000000000 Apr 18 14:48:54 enterprise kernel: [22321.027850] CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 Apr 18 14:48:54 enterprise kernel: [22321.027850] CR2: 0000000000000008 CR3: 00000003301b2000 CR4: 00000000000026e0 Apr 18 14:48:54 enterprise kernel: [22321.027850] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 Apr 18 14:48:54 enterprise kernel: [22321.027850] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Apr 18 14:48:54 enterprise kernel: [22321.027850] Process qemu-system-x86 (pid: 7814, threadinfo ffff81033005e000, task ffff810396023080) Apr 18 14:48:54 enterprise kernel: [22321.027850] Stack: ffff81033005fb04 0000000000000088 ffff810344cf9438 ffff810344cf9440 Apr 18 14:48:54 enterprise kernel: [22321.027850] 0000000000040040 0000000000055e1c 0000000000055e1c ffff810344cf9498 Apr 18 14:48:54 enterprise kernel: [22321.027850] 0000000000800009 ffffffff8805087a 0000000000000000 ffff810344cf80c0 Apr 18 14:48:54 enterprise kernel: [22321.027850] Call Trace: Apr 18 14:48:54 enterprise kernel: [22321.027850] [<ffffffff88038d91>] ? :kvm:emulate_instruction+0x1e5/0x2b9 Apr 18 14:48:54 enterprise kernel: [22321.027850] [<ffffffff88057cd1>] ? :kvm_intel:kvm_handle_exit+0xea/0x1e8 Apr 18 14:48:54 enterprise kernel: [22321.027850] [<ffffffff88057a96>] ? :kvm_intel:vmx_intr_assist+0x68/0x1b9 Apr 18 14:48:54 enterprise kernel: [22321.027850] [<ffffffff80563398>] ? __down_read+0x12/0xa1 Apr 18 14:48:54 enterprise kernel: [22321.027850] [<ffffffff8803b940>] ? :kvm:kvm_arch_vcpu_ioctl_run+0x4ae/0x631 Apr 18 14:48:54 enterprise kernel: [22321.027850] [<ffffffff80291ec9>] ? touch_atime+0xae/0xed Apr 18 14:48:54 enterprise kernel: [22321.027850] [<ffffffff8803672e>] ? :kvm:kvm_vcpu_ioctl+0xf3/0x3a1 Apr 18 14:48:54 enterprise kernel: [22321.027850] [<ffffffff802802c0>] ? do_sync_read+0xd1/0x118 Apr 18 14:48:54 enterprise kernel: [22321.027850] [<ffffffff880363b1>] ? :kvm:kvm_vm_ioctl+0x1ab/0x1c3 Apr 18 14:48:54 enterprise kernel: [22321.027850] [<ffffffff8028ae49>] ? vfs_ioctl+0x21/0x6b Apr 18 14:48:54 enterprise kernel: [22321.027850] [<ffffffff8028b0e6>] ? do_vfs_ioctl+0x253/0x264 Apr 18 14:48:54 enterprise kernel: [22321.027850] [<ffffffff80280aa0>] ? vfs_read+0x11e/0x132 Apr 18 14:48:54 enterprise kernel: [22321.027850] [<ffffffff8028b133>] ? sys_ioctl+0x3c/0x5d Apr 18 14:48:54 enterprise kernel: [22321.027850] [<ffffffff8020b08a>] ? system_call_after_swapgs+0x8a/0x8f Apr 18 14:48:54 enterprise kernel: [22321.027850] Apr 18 14:48:54 enterprise kernel: [22321.027850] Apr 18 14:48:54 enterprise kernel: [22321.027850] RSP <ffff81033005fb68> Apr 18 14:48:54 enterprise kernel: [22321.028054] ---[ end trace 153cd0388d4ba429 ]--- q ------------------------------------------------------------------------- This SF.net email is sponsored by the 2008 JavaOne(SM) Conference Don't miss this year's exciting event. 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