Hi I'm trying various thing with qemu to resolve my other issue and I've tried to use oprofile. But as soon as I run these:
opcontrol --vmlinux=mine/vmlinux opcontrol --start I get kernel oops (see bellow) Is the fault in qemu (i.e. NMI is not emulated) or do I have to use some other tools ? Or should I report this to lkml ? [ 59.423311] oprofile: using NMI interrupt. [ 65.125411] general protection fault: 0000 [1] PREEMPT SMP [ 65.128156] CPU 1 [ 65.128156] Modules linked in: oprofile nfs lockd nfs_acl sunrpc autofs4 dm_mod loop rtc psmouse evdev serio_raw i2c _piix4 pcnet32 mii i2c_core button [ 65.128156] Pid: 2584, comm: udevd Not tainted 2.6.25-rc5-replic-server #52 [ 65.128156] RIP: 0010:[<ffffffff881043e9>] [<ffffffff881043e9>] :oprofile:nmi_save_registers+0x49/0xb0 [ 65.128156] RSP: 0000:ffff81001f89bf78 EFLAGS: 00000002 [ 65.128156] RAX: 0000000000000001 RBX: 0000000000000000 RCX: 00000000000000c1 [ 65.128156] RDX: ffffffff88106400 RSI: 0000000000000000 RDI: ffff81001b9513a8 [ 65.128156] RBP: ffff81001f89bf78 R08: 0000000000000020 R09: ffff81001b951410 [ 65.128156] R10: 0000000000000002 R11: 0000000000000001 R12: ffffffff881043a0 [ 65.128156] R13: 0000000000000001 R14: 0000000000000000 R15: ffff81001c1c65a0 [ 65.128156] FS: 0000000000000000(0000) GS:ffff81001f80f190(0063) knlGS:00000000f7d79720 [ 65.128156] CS: 0010 DS: 002b ES: 002b CR0: 000000008005003b [ 65.128156] CR2: 00000000f7dad1b0 CR3: 000000001b93b000 CR4: 00000000000006e0 [ 65.128156] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 65.128156] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 [ 65.128156] Process udevd (pid: 2584, threadinfo ffff81001b004000, task ffff81001bba8000) [ 65.128156] Stack: ffff81001f89bfa8 ffffffff8101f74f aaaaaaaaaaaaaaab ffff81001c0f1d68 [ 65.128156] ffff810002666220 0000000000000000 ffff81001b005c30 ffffffff8100d25b [ 65.128156] ffff81001b005c30 <EOI> ffff81001b005d48 0000000000000001 0000000000000000 [ 65.128156] Call Trace: [ 65.128156] <IRQ> [<ffffffff8101f74f>] smp_call_function_interrupt+0x4f/0x80 [ 65.128156] [<ffffffff8100d25b>] call_function_interrupt+0x6b/0x70 [ 65.128156] <EOI> [<ffffffff8109bd60>] ? __do_fault+0x240/0x580 [ 65.128156] [<ffffffff8109bcdd>] ? __do_fault+0x1bd/0x580 [ 65.128156] [<ffffffff8109df4d>] ? handle_mm_fault+0x26d/0x8c0 [ 65.128156] [<ffffffff812f8cac>] ? do_page_fault+0x3fc/0xb50 [ 65.128156] [<ffffffff81058171>] ? hrtimer_start+0xe1/0x1a0 [ 65.128156] [<ffffffff8106157a>] ? get_lock_stats+0x2a/0x70 [ 65.128156] [<ffffffff810615ce>] ? put_lock_stats+0xe/0x30 [ 65.128156] [<ffffffff810415b3>] ? do_setitimer+0x393/0x3b0 [ 65.128156] [<ffffffff812f59b2>] ? _spin_unlock_irq+0x32/0x80 [ 65.128156] [<ffffffff81063461>] ? trace_hardirqs_on+0x131/0x190 [ 65.128156] [<ffffffff812f59bd>] ? _spin_unlock_irq+0x3d/0x80 [ 65.128156] [<ffffffff810415b3>] ? do_setitimer+0x393/0x3b0 [ 65.128156] [<ffffffff812f5151>] ? trace_hardirqs_on_thunk+0x35/0x3a [ 65.128156] [<ffffffff812f646d>] ? error_exit+0x0/0xa9 [ 65.128156] [ 65.128156] [ 65.128156] Code: b8 60 c6 10 88 4c 8b 88 68 c6 10 88 85 c9 74 3b 8d 41 ff 31 f6 4c 8d 40 01 49 c1 e0 04 0f 1f 44 00 00 48 8b 0c 37 48 85 c9 74 17 <0f> 32 48 c1 e2 20 89 c0 48 09 c2 89 54 37 0c 48 c1 ea 20 89 54 [ 65.128156] RIP [<ffffffff881043e9>] :oprofile:nmi_save_registers+0x49/0xb0 [ 65.128156] RSP <ffff81001f89bf78> [ 65.128156] ---[ end trace e503d3702565a4da ]--- [ 65.128156] Kernel panic - not syncing: Aiee, killing interrupt handler! Or another one: [ 69.388548] oprofile: using NMI interrupt. [ 78.377689] general protection fault: 0000 [1] PREEMPT SMP [ 78.378754] CPU 0 [ 78.378754] Modules linked in: oprofile nfs lockd nfs_acl sunrpc autofs4 dm_mod loop psmouse i2c_piix4 evdev rtc ser io_raw i2c_core pcnet32 mii button [ 78.378754] Pid: 506, comm: udevd Not tainted 2.6.25-rc5-replic-server #52 [ 78.378754] RIP: 0010:[<ffffffff881063e9>] [<ffffffff881063e9>] :oprofile:nmi_save_registers+0x49/0xb0 [ 78.378754] RSP: 0018:ffffffff81559f78 EFLAGS: 00000002 [ 78.378754] RAX: 0000000000000001 RBX: 0000000000000000 RCX: 00000000000000c1 [ 78.378754] RDX: ffffffff88108400 RSI: 0000000000000000 RDI: ffff81001b589000 [ 78.378754] RBP: ffffffff81559f78 R08: 0000000000000020 R09: ffff81001b589270 [ 78.378754] R10: 0000000000000002 R11: 0000000000000001 R12: ffffffff881063a0 [ 78.378754] R13: 0000000000000001 R14: ffff81001f20c000 R15: ffffffffffffffff [ 78.378754] FS: 0000000000000000(0000) GS:ffffffff8148c000(0063) knlGS:00000000f7e59720 [ 78.378754] CS: 0010 DS: 002b ES: 002b CR0: 000000008005003b [ 78.378754] CR2: 00000000080f0d78 CR3: 000000001f109000 CR4: 00000000000006e0 [ 78.378754] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 78.378754] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 [ 78.378754] Process udevd (pid: 506, threadinfo ffff81001f204000, task ffff81001f20c000) [ 78.378754] Stack: ffffffff81559fa8 ffffffff8101f74f 0000000000059897 ffff81001f2401e0 [ 78.378754] ffff81001f2401e8 0000000000000246 ffff81001f205d90 ffffffff8100d25b [ 78.378754] ffff81001f205d90 <EOI> ffff81001f205e98 0000000000000001 0000000000000001 [ 78.378754] Call Trace: [ 78.378754] <IRQ> [<ffffffff8101f74f>] smp_call_function_interrupt+0x4f/0x80 [ 78.378754] [<ffffffff8100d25b>] call_function_interrupt+0x6b/0x70 [ 78.378754] <EOI> [<ffffffff812f3938>] ? mutex_lock_nested+0x2a8/0x330 [ 78.378754] [<ffffffff810c601c>] ? do_unlinkat+0xbc/0x1d0 [ 78.378754] [<ffffffff810c601c>] ? do_unlinkat+0xbc/0x1d0 [ 78.378754] [<ffffffff810babbd>] ? fput+0x1d/0x30 [ 78.378754] [<ffffffff812f518b>] ? trace_hardirqs_off_thunk+0x35/0x37 [ 78.378754] [<ffffffff810c6141>] ? sys_unlink+0x11/0x20 [ 78.378754] [<ffffffff81028e22>] ? sysenter_do_call+0x1b/0x70 [ 78.378754] [<ffffffff812f5151>] ? trace_hardirqs_on_thunk+0x35/0x3a [ 78.378754] [ 78.378754] [ 78.378754] Code: b8 60 e6 10 88 4c 8b 88 68 e6 10 88 85 c9 74 3b 8d 41 ff 31 f6 4c 8d 40 01 49 c1 e0 04 0f 1f 44 00 00 48 8b 0c 37 48 85 c9 74 17 <0f> 32 48 c1 e2 20 89 c0 48 09 c2 89 54 37 0c 48 c1 ea 20 89 54 [ 78.378754] RIP [<ffffffff881063e9>] :oprofile:nmi_save_registers+0x49/0xb0 [ 78.378754] RSP <ffffffff81559f78> [ 78.378754] ---[ end trace b14ff686483a94a5 ]--- [ 78.378754] Kernel panic - not syncing: Aiee, killing interrupt handler! Or others.... Zdenek ------------------------------------------------------------------------- This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ _______________________________________________ kvm-devel mailing list kvm-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/kvm-devel
