On Tue, Feb 3, 2009 at 8:25 AM, Mark McLoughlin <markmc@xxxxxxxxxx> wrote: > Hi, > > Same guest, this time a kvmclock related oops. How do you know that? There is kvmclock related functions in the trace as could be any clock related function. The problem smells like bad mmu to me at a first glance. > Cheers, > Mark. > > kernel BUG at include/linux/mm.h:302! > invalid opcode: 0000 [#1] SMP DEBUG_PAGEALLOC > last sysfs file: /sys/devices/pci0000:00/0000:00:01.1/host1/target1:0:0/1:0:0:0/ > type > CPU 1 > Modules linked in: e1000e(+) virtio_pci virtio_ring virtio iscsi_ibft iscsi_tcp > libiscsi_tcp libiscsi scsi_transport_iscsi ext2 ext4 jbd2 crc16 squashfs pcspkr > floppy nfs lockd nfs_acl auth_rpcgss sunrpc vfat fat cramfs > Pid: 679, comm: udevd Not tainted 2.6.29-0.53.rc2.git1.fc11.x86_64 #1 > RIP: 0010:[<ffffffff810bb332>] [<ffffffff810bb332>] do_wp_page+0x324/0x6d8 > RSP: 0000:ffff88003826da88 EFLAGS: 00010246 > RAX: 0000000000000000 RBX: ffff880038264d60 RCX: ffff880038264d60 > RDX: ffffe200016d9230 RSI: 00000000019ac7b0 RDI: 8000000000000065 > RBP: ffff88003826daf8 R08: ffff88003825d060 R09: ffffe200016cf8b0 > R10: ffff8800381f1648 R11: ffffffff81385e94 R12: ffffe200016d9230 > R13: 80000000383de065 R14: ffff8800381f1648 R15: ffffe200016cf8b0 > FS: 00007fcc71dde790(0000) GS:ffff88003b44c3e8(0000) knlGS:0000000000000000 > CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 > CR2: 00000000019ac7b0 CR3: 000000003825b000 CR4: 00000000000006e0 > DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 > DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 > Process udevd (pid: 679, threadinfo ffff88003826c000, task ffff88003877c720) > Stack: > 0000000000000246 ffff88003825d060 ffff880038264d60 00000000019ac7b0 > ffff8800381f1648 ffff880038228540 ffff8800381f1648 00000000019ac7b0 > ffff88003826daf8 ffff880038264d60 ffffe200016cf8b0 80000000383de065 > Call Trace: > [<ffffffff810bd1e5>] handle_mm_fault+0x7d7/0x88b > [<ffffffff81385e94>] ? do_page_fault+0x58a/0xa35 > [<ffffffff81385f40>] do_page_fault+0x636/0xa35 > [<ffffffff812da338>] ? sock_recvmsg+0xca/0xe3 > [<ffffffff8105f090>] ? autoremove_wake_function+0x0/0x38 > [<ffffffff810ba0c3>] ? might_fault+0xaf/0xb1 > [<ffffffff810ba071>] ? might_fault+0x5d/0xb1 > [<ffffffff810ebad0>] ? set_fd_set+0x39/0x43 > [<ffffffff812e28e6>] ? verify_iovec+0x4f/0x91 > [<ffffffff812db319>] ? sys_recvmsg+0x142/0x217 > [<ffffffff8102a24b>] ? kvm_clock_read+0x1c/0x1e > [<ffffffff81016ea3>] ? sched_clock+0x9/0xc > [<ffffffff81018b28>] ? restore_i387_xstate+0x6e/0x17a > [<ffffffff81383002>] ? _spin_unlock_irq+0x2b/0x37 > [<ffffffff8106d719>] ? trace_hardirqs_on_caller+0x12f/0x153 > [<ffffffff8102ad8c>] ? pvclock_clocksource_read+0x42/0x7e > [<ffffffff81383be0>] ? error_sti+0x5/0x6 > [<ffffffff81382c33>] ? trace_hardirqs_off_thunk+0x3a/0x3c > [<ffffffff813839a5>] page_fault+0x25/0x30 > Code: 48 89 c1 41 bd 08 00 00 00 e8 81 95 f7 ff e9 43 03 00 00 49 8b 04 24 4c 89 > e2 f6 c4 40 74 05 49 8b 54 24 10 8b 42 08 85 c0 75 04 <0f> 0b eb fe 48 8d 42 08 > f0 ff 42 08 4c 89 ff e8 1f 7d 2c 00 48 > RIP [<ffffffff810bb332>] do_wp_page+0x324/0x6d8 > RSP <ffff88003826da88> > > > -- > To unsubscribe from this list: send the line "unsubscribe kvm" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html > -- Glauber Costa. "Free as in Freedom" http://glommer.net "The less confident you are, the more serious you have to act." -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
