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[Xen-devel] xen-unstable pvops 2.6.32.21 kernel/lockdep.c:2323 trace_hardirqs_on_caller+0x12f/0x190()

From: Bruce Edge <bruce.edge@xxxxxxxxx>

Date: Wed, 15 Sep 2010 16:37:44 -0700

Delivery-date: Wed, 15 Sep 2010 16:38:34 -0700

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With top of xen-unstable and pvops 2.6.32.x I get this on the dom0 serial console when I start a linux pvops domU (using the same kernel as the dom0): 0 kaan-18 ~ #> (XEN) tmem: all pools frozen for all domains (XEN) tmem: all pools thawed for all domains (XEN) tmem: all pools frozen for all domains (XEN) tmem: all pools thawed for all domains mapping kernel into physical memory about to get started... [ 188.652747] ------------[ cut here ]------------ [ 188.652800] WARNING: at kernel/lockdep.c:2323 trace_hardirqs_on_caller+0x12f/0x190() [ 188.652826] Hardware name: ProLiant DL380 G6 [ 188.652844] Modules linked in: xt_physdev osa_mfgdom0 xenfs xen_gntdev xen_evtchn ipv6 fbcon tileblit font bitblit softcursor xen_pciback radeon tun ttm drm_kms_helper serio_raw ipmi_si bridge drm i2c_algo_bit stp ipmi_msghandler joydev hpilo hpwdt i2c_core llc lp parport usbhid hid cciss usb_storage [ 188.653063] Pid: 11, comm: xenwatch Not tainted 2.6.32.21-1 #1 [ 188.653084] Call Trace: [ 188.653094] <IRQ> [<ffffffff810aa22f>] ? trace_hardirqs_on_caller+0x12f/0x190 [ 188.653127] [<ffffffff8106bf70>] warn_slowpath_common+0x80/0xd0 [ 188.653153] [<ffffffff815f3f50>] ? _spin_unlock_irq+0x30/0x40 [ 188.653177] [<ffffffff8106bfd4>] warn_slowpath_null+0x14/0x20 [ 188.653200] [<ffffffff810aa22f>] trace_hardirqs_on_caller+0x12f/0x190 [ 188.653224] [<ffffffff810aa29d>] trace_hardirqs_on+0xd/0x10 [ 188.653246] [<ffffffff815f3f50>] _spin_unlock_irq+0x30/0x40 [ 188.653270] [<ffffffff813c5055>] add_to_net_schedule_list_tail+0x85/0xd0 [ 188.653294] [<ffffffff813c62a6>] netif_be_int+0x36/0x160 [ 188.653314] [<ffffffff810e1150>] handle_IRQ_event+0x70/0x180 [ 188.653338] [<ffffffff810e3769>] handle_edge_irq+0xc9/0x170 [ 188.653362] [<ffffffff813b8dff>] __xen_evtchn_do_upcall+0x1bf/0x1f0 [ 188.653385] [<ffffffff813b937d>] xen_evtchn_do_upcall+0x3d/0x60 [ 188.653409] [<ffffffff8101647e>] xen_do_hypervisor_callback+0x1e/0x30 [ 188.653431] <EOI> [<ffffffff8100940a>] ? hypercall_page+0x40a/0x1010 [ 188.653464] [<ffffffff8100940a>] ? hypercall_page+0x40a/0x1010 [ 188.653487] [<ffffffff813bcee4>] ? xb_write+0x1e4/0x290 [ 188.653507] [<ffffffff813bd95a>] ? xs_talkv+0x6a/0x1f0 [ 188.653526] [<ffffffff813bd968>] ? xs_talkv+0x78/0x1f0 [ 188.653546] [<ffffffff813bdc5d>] ? xs_single+0x4d/0x60 [ 188.653565] [<ffffffff813be592>] ? xenbus_read+0x52/0x80 [ 188.653585] [<ffffffff813c888c>] ? frontend_changed+0x48c/0x770 [ 188.653609] [<ffffffff813bf7fd>] ? xenbus_otherend_changed+0xdd/0x1b0 [ 188.653633] [<ffffffff810111ef>] ? xen_restore_fl_direct_end+0x0/0x1 [ 188.653656] [<ffffffff810ac8c0>] ? lock_release+0xb0/0x230 [ 188.653676] [<ffffffff813bfb70>] ? frontend_changed+0x10/0x20 [ 188.653699] [<ffffffff813bd585>] ? xenwatch_thread+0x55/0x160 [ 188.653723] [<ffffffff810934a0>] ? autoremove_wake_function+0x0/0x40 [ 188.653747] [<ffffffff813bd530>] ? xenwatch_thread+0x0/0x160 [ 188.653770] [<ffffffff81093126>] ? kthread+0x96/0xb0 [ 188.653790] [<ffffffff8101632a>] ? child_rip+0xa/0x20 [ 188.653809] [<ffffffff81015c90>] ? restore_args+0x0/0x30 [ 188.653828] [<ffffffff81016320>] ? child_rip+0x0/0x20 [ 188.653846] ---[ end trace ab2eaae7afa5acdb ]--- [ 195.184915] vif1.0: no IPv6 routers present The domU does start and is functional, complete with PCI passthrough. kern.log repeats the same information, but precedes it with this: ==> kern.log <== 2010-09-15T16:29:40.921979-07:00 kaan-18 [ 188.562552] blkback: ring-ref 8, event-channel 73, protocol 1 (x86_64-abi) 2010-09-15T16:29:40.922202-07:00 kaan-18 [ 188.562647] alloc irq_desc for 481 on node 0 2010-09-15T16:29:40.922310-07:00 kaan-18 [ 188.562652] alloc kstat_irqs on node 0 2010-09-15T16:29:40.971943-07:00 kaan-18 [ 188.608807] alloc irq_desc for 480 on node 0 2010-09-15T16:29:40.972387-07:00 kaan-18 [ 188.608813] alloc kstat_irqs on node 0 2010-09-15T16:29:41.013027-07:00 kaan-18 [ 188.652651] alloc irq_desc for 479 on node 0 2010-09-15T16:29:41.013286-07:00 kaan-18 [ 188.652657] alloc kstat_irqs on node 0 Let me know if there's anything else I can provide. -Bruce _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel

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