Not sure if bugs should be reported on xen-user or xen-devel. Please point me elsewhere if this is the wrong list. We are running QEMU under a xenU to run a windows 2000 server instance since our processor doesn''t support VT. Qemu runs great until it is closed, but when qemu closes the xenU dies hard. Qemu is running as a user (not root) which implies that xvm''s are subject to local user DoS. Any ideas would be greatly appreciated! -Eric BUG: soft lockup detected on CPU#0! Pid: 1161, comm: qemu EIP: 0061:[<c0101227>] CPU: 0 EIP is at 0xc0101227 EFLAGS: 00000246 Not tainted (2.6.15-1.2054_FC5xenU #1) EAX: 00030000 EBX: 00000000 ECX: 00000000 EDX: c03a18b8 ESI: d6bf3d58 EDI: d6bf3d28 EBP: 00000002 DS: 007b ES: 007b CR0: 8005003b CR2: 00dc95c4 CR3: 01647000 CR4: 00000640 [<c020decc>] force_evtchn_callback+0xa/0xc [<c0212601>] read_reply+0xad/0x123 [<c029b4f9>] cond_resched+0x36/0x4e [<c0129343>] autoremove_wake_function+0x0/0x3a [<c0212720>] xs_talkv+0xa9/0x12a [<c021281a>] xs_single+0x2d/0x34 [<c0212978>] xenbus_read+0x2e/0x3d [<c0212d12>] xenbus_gather+0x33/0x84 [<c021183f>] xenbus_read_driver_state+0x1f/0x31 [<c0215480>] blkif_release+0x2c/0x3d [<c015a7b5>] blkdev_put+0x71/0x145 [<c015454d>] __fput+0xab/0x163 [<c0151f23>] filp_close+0x4e/0x57 [<c01195aa>] put_files_struct+0x62/0xa2 [<c011a8cb>] do_exit+0x1db/0x6f4 [<c033ccc0>] huft_free+0x11/0x18 [<c011ae6d>] sys_exit_group+0x0/0x11 [<c0122b29>] get_signal_to_deliver+0x467/0x490 [<c01042ad>] do_notify_resume+0x71/0x5f8 [<c029c97f>] _spin_lock_irqsave+0x22/0x27 [<c029ca7d>] _spin_unlock_irqrestore+0x9/0x31 [<c013c2c6>] free_hot_cold_page+0xb8/0x152 [<c016402a>] poll_freewait+0x35/0x3e [<c0164dfa>] do_sys_poll+0x2ea/0x2f5 [<c0164033>] __pollwait+0x0/0x9b [<c0165048>] sys_poll+0x45/0x49 [<c0104bd3>] work_notifysig+0x13/0x18 _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel
> We are running QEMU under a xenU to run a windows 2000 server > instance since our processor doesn''t support VT. Qemu runs > great until it is closed, but when qemu closes the xenU dies > hard. Qemu is running as a user (not root) which implies > that xvm''s are subject to local user DoS.Interesting. Please can you try and repro this on Xen 3.0.2 as the FC5 version isn''t totally current. Thanks, Ian> > Any ideas would be greatly appreciated! > > -Eric > > BUG: soft lockup detected on CPU#0! > > Pid: 1161, comm: qemu > EIP: 0061:[<c0101227>] CPU: 0 > EIP is at 0xc0101227 > EFLAGS: 00000246 Not tainted (2.6.15-1.2054_FC5xenU #1) > EAX: 00030000 EBX: 00000000 ECX: 00000000 EDX: c03a18b8 > ESI: d6bf3d58 EDI: d6bf3d28 EBP: 00000002 DS: 007b ES: 007b > CR0: 8005003b CR2: 00dc95c4 CR3: 01647000 CR4: 00000640 > [<c020decc>] force_evtchn_callback+0xa/0xc > [<c0212601>] read_reply+0xad/0x123 > [<c029b4f9>] cond_resched+0x36/0x4e > [<c0129343>] autoremove_wake_function+0x0/0x3a > [<c0212720>] xs_talkv+0xa9/0x12a > [<c021281a>] xs_single+0x2d/0x34 > [<c0212978>] xenbus_read+0x2e/0x3d > [<c0212d12>] xenbus_gather+0x33/0x84 > [<c021183f>] xenbus_read_driver_state+0x1f/0x31 > [<c0215480>] blkif_release+0x2c/0x3d > [<c015a7b5>] blkdev_put+0x71/0x145 > [<c015454d>] __fput+0xab/0x163 > [<c0151f23>] filp_close+0x4e/0x57 > [<c01195aa>] put_files_struct+0x62/0xa2 > [<c011a8cb>] do_exit+0x1db/0x6f4 > [<c033ccc0>] huft_free+0x11/0x18 > [<c011ae6d>] sys_exit_group+0x0/0x11 > [<c0122b29>] get_signal_to_deliver+0x467/0x490 > [<c01042ad>] do_notify_resume+0x71/0x5f8 > [<c029c97f>] _spin_lock_irqsave+0x22/0x27 > [<c029ca7d>] _spin_unlock_irqrestore+0x9/0x31 > [<c013c2c6>] free_hot_cold_page+0xb8/0x152 > [<c016402a>] poll_freewait+0x35/0x3e > [<c0164dfa>] do_sys_poll+0x2ea/0x2f5 > [<c0164033>] __pollwait+0x0/0x9b > [<c0165048>] sys_poll+0x45/0x49 > [<c0104bd3>] work_notifysig+0x13/0x18 > > > _______________________________________________ > Xen-devel mailing list > Xen-devel@lists.xensource.com > http://lists.xensource.com/xen-devel >_______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel
> Not sure if bugs should be reported on xen-user or xen-devel. > Please point me elsewhere if this is the wrong list. > > We are running QEMU under a xenU to run a windows 2000 server > instance since our processor doesn''t support VT. Qemu runs > great until it is closed, but when qemu closes the xenU dies > hard. Qemu is running as a user (not root) which implies > that xvm''s are subject to local user DoS. >We''ve been unable to repro this. Please can you tell us more about the setup, machine, exact version etc. Thanks, Ian _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel