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Re: [Xen-devel] xen-swiotlb: WARNING: at kernel/smp.c:421 smp_call_function_many+0x66/0x1a1()

To: Sander Eikelenboom <linux@xxxxxxxxxxxxxx>

From: Jeremy Fitzhardinge <jeremy@xxxxxxxx>

Date: Thu, 22 Jul 2010 12:59:28 -0700

Cc: xen-devel@xxxxxxxxxxxxxxxxxxx, Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>

Delivery-date: Thu, 22 Jul 2010 13:00:44 -0700

List-id: Xen developer discussion <xen-devel.lists.xensource.com>

On 07/22/2010 12:32 PM, Sander Eikelenboom wrote: > Hi Konrad, > > Finally found the time to test the xen-swiotlb again (together with usb3/xhci > isoc pathes) > I began with your tree: > git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen.git > devel/merge.2.6.35-rc3 > > and after that i merged in a tree for the xhci part that is based on > 2.6.35-rc4: > > git://git.kernel.org/pub/scm/linux/kernel/git/sarah/xhci.git amd-isoc > > That all went without a problem, booting the resulting kernel in a PV domU > gives the warnings below, i hope these can be addressed before the next merge > window and xen-swiotlb will make it in ! > Despite the 2 warnings, the usb devices i passed through seem to work ok. > Looks like you need changes: c2ae7934bba9f4e0492497953b60ffe75f9c3f5b 3ada8ba278a91fc73062d1ff6c6cd80bf7a058f3 J > -- > Sander > > > > info: > Xen version: xen-4.0-testing-pre4 (changeset: 21263:57859775f88f) > Dom0 kernel: 2.6.32.16 pvops (commit 006bfe8f594370f36f09d8e8ab13692d34e88533) > > Attached: > - xm dmesg (the part where the domU gets created > - dmesg of the domU > - lspci -vvvknn of the domU > > > > [ 1.471104] ------------[ cut here ]------------ > [ 1.471120] WARNING: at kernel/smp.c:421 > smp_call_function_many+0x66/0x1a1() > [ 1.471126] Modules linked in: thermal_sys [last unloaded: scsi_wait_scan] > [ 1.471135] Pid: 153, comm: khubd Not tainted 2.6.35-rc4+konrad+xhci-isoc+ > #2 > [ 1.471140] Call Trace: > [ 1.471147] [<ffffffff81063987>] ? smp_call_function_many+0x66/0x1a1 > [ 1.471153] [<ffffffff81063987>] ? smp_call_function_many+0x66/0x1a1 > [ 1.471159] [<ffffffff8103d85e>] ? warn_slowpath_common+0x78/0xa2 > [ 1.471166] [<ffffffff81063987>] ? smp_call_function_many+0x66/0x1a1 > [ 1.471177] [<ffffffff8102b071>] ? do_flush_tlb_all+0x0/0x43 > [ 1.471182] [<ffffffff8102b071>] ? do_flush_tlb_all+0x0/0x43 > [ 1.471188] [<ffffffff81063ae2>] ? smp_call_function+0x20/0x25 > [ 1.471195] [<ffffffff8104300f>] ? on_each_cpu+0x10/0x2e > [ 1.471201] [<ffffffff810bd26c>] ? __purge_vmap_area_lazy+0xf6/0x14f > [ 1.471207] [<ffffffff810bf62f>] ? vm_unmap_aliases+0x168/0x179 > [ 1.471214] [<ffffffff8100470e>] ? xen_create_contiguous_region+0x3f/0xe6 > [ 1.471221] [<ffffffff8123859f>] ? xen_swiotlb_alloc_coherent+0x66/0xd3 > [ 1.471227] [<ffffffff8100633f>] ? xen_restore_fl_direct_end+0x0/0x1 > [ 1.471234] [<ffffffff810c3832>] ? pool_alloc_page+0x10a/0x194 > [ 1.471240] [<ffffffff810c3932>] ? dma_pool_alloc+0x76/0x163 > [ 1.471248] [<ffffffff8138d215>] ? hid_alloc_buffers+0x23/0xf4 > [ 1.471254] [<ffffffff8138e75e>] ? usbhid_start+0x15d/0x49b > [ 1.471260] [<ffffffff8111c6a1>] ? sysfs_do_create_link+0xee/0x13c > [ 1.471266] [<ffffffff81380f77>] ? hid_device_probe+0x93/0xce > [ 1.471274] [<ffffffff812bceef>] ? really_probe+0x8a/0x12e > [ 1.471279] [<ffffffff812bd01c>] ? __device_attach+0x0/0x39 > [ 1.471285] [<ffffffff812bc500>] ? bus_for_each_drv+0x46/0x77 > [ 1.471293] [<ffffffff812bd0cd>] ? device_attach+0x55/0x66 > [ 1.471298] [<ffffffff812bc350>] ? bus_probe_device+0x22/0x3b > [ 1.471304] [<ffffffff812baee5>] ? device_add+0x29c/0x406 > [ 1.471310] [<ffffffff81380b80>] ? hid_add_device+0x17c/0x1a0 > [ 1.471316] [<ffffffff8138da3e>] ? usbhid_probe+0x40b/0x468 > [ 1.471322] [<ffffffff8132fcc7>] ? usb_match_one_id+0x23/0x7f > [ 1.471328] [<ffffffff8133077a>] ? usb_probe_interface+0xd4/0x11b > [ 1.471334] [<ffffffff812bceef>] ? really_probe+0x8a/0x12e > [ 1.471340] [<ffffffff812bd01c>] ? __device_attach+0x0/0x39 > [ 1.471346] [<ffffffff812bc500>] ? bus_for_each_drv+0x46/0x77 > [ 1.471352] [<ffffffff812bd0cd>] ? device_attach+0x55/0x66 > [ 1.471358] [<ffffffff812bc350>] ? bus_probe_device+0x22/0x3b > [ 1.471364] [<ffffffff812baee5>] ? device_add+0x29c/0x406 > [ 1.471369] [<ffffffff8132f97a>] ? usb_set_configuration+0x5d6/0x655 > [ 1.471376] [<ffffffff8133710f>] ? generic_probe+0x71/0xc6 > [ 1.471381] [<ffffffff812bceef>] ? really_probe+0x8a/0x12e > [ 1.471387] [<ffffffff812bd01c>] ? __device_attach+0x0/0x39 > [ 1.471394] [<ffffffff812bc500>] ? bus_for_each_drv+0x46/0x77 > [ 1.471400] [<ffffffff812bd0cd>] ? device_attach+0x55/0x66 > [ 1.471406] [<ffffffff812bc350>] ? bus_probe_device+0x22/0x3b > [ 1.471411] [<ffffffff812baee5>] ? device_add+0x29c/0x406 > [ 1.471417] [<ffffffff81329b25>] ? usb_new_device+0x7b/0xdc > [ 1.471422] [<ffffffff8132a6f5>] ? hub_port_connect_change+0x5fc/0x89e > [ 1.471428] [<ffffffff8132e9ac>] ? usb_control_msg+0x12f/0x140 > [ 1.471434] [<ffffffff8132ad64>] ? hub_events+0x3cd/0x51d > [ 1.471440] [<ffffffff8132aef0>] ? hub_thread+0x3c/0x158 > [ 1.471446] [<ffffffff81054c0c>] ? autoremove_wake_function+0x0/0x2e > [ 1.471452] [<ffffffff8132aeb4>] ? hub_thread+0x0/0x158 > [ 1.471457] [<ffffffff810547d5>] ? kthread+0x79/0x81 > [ 1.471463] [<ffffffff81009564>] ? kernel_thread_helper+0x4/0x10 > [ 1.471468] [<ffffffff81008961>] ? int_ret_from_sys_call+0x7/0x1b > [ 1.471476] [<ffffffff8143121d>] ? retint_restore_args+0x5/0x6 > [ 1.471481] [<ffffffff81009560>] ? kernel_thread_helper+0x0/0x10 > [ 1.471486] ---[ end trace 0680a6f27492dd31 ]--- > [ 1.471490] ------------[ cut here ]------------ > [ 1.471495] WARNING: at kernel/smp.c:293 > smp_call_function_single+0x6e/0x108() > [ 1.471500] Modules linked in: thermal_sys [last unloaded: scsi_wait_scan] > [ 1.471509] Pid: 153, comm: khubd Tainted: G W > 2.6.35-rc4+konrad+xhci-isoc+ #2 > [ 1.471514] Call Trace: > [ 1.471519] [<ffffffff8106380a>] ? smp_call_function_single+0x6e/0x108 > [ 1.471524] [<ffffffff8106380a>] ? smp_call_function_single+0x6e/0x108 > [ 1.471530] [<ffffffff8103d85e>] ? warn_slowpath_common+0x78/0xa2 > [ 1.471536] [<ffffffff8106380a>] ? smp_call_function_single+0x6e/0x108 > [ 1.471542] [<ffffffff8102b071>] ? do_flush_tlb_all+0x0/0x43 > [ 1.471547] [<ffffffff8102b071>] ? do_flush_tlb_all+0x0/0x43 > [ 1.471553] [<ffffffff81063ae2>] ? smp_call_function+0x20/0x25 > [ 1.471559] [<ffffffff8104300f>] ? on_each_cpu+0x10/0x2e > [ 1.471564] [<ffffffff810bd26c>] ? __purge_vmap_area_lazy+0xf6/0x14f > [ 1.471570] [<ffffffff810bf62f>] ? vm_unmap_aliases+0x168/0x179 > [ 1.471576] [<ffffffff8100470e>] ? xen_create_contiguous_region+0x3f/0xe6 > [ 1.471582] [<ffffffff8123859f>] ? xen_swiotlb_alloc_coherent+0x66/0xd3 > [ 1.471588] [<ffffffff8100633f>] ? xen_restore_fl_direct_end+0x0/0x1 > [ 1.471594] [<ffffffff810c3832>] ? pool_alloc_page+0x10a/0x194 > [ 1.471600] [<ffffffff810c3932>] ? dma_pool_alloc+0x76/0x163 > [ 1.472021] [<ffffffff8138d215>] ? hid_alloc_buffers+0x23/0xf4 > [ 1.472021] [<ffffffff8138e75e>] ? usbhid_start+0x15d/0x49b > [ 1.472021] [<ffffffff8111c6a1>] ? sysfs_do_create_link+0xee/0x13c > [ 1.472021] [<ffffffff81380f77>] ? hid_device_probe+0x93/0xce > [ 1.472021] [<ffffffff812bceef>] ? really_probe+0x8a/0x12e > [ 1.472021] [<ffffffff812bd01c>] ? __device_attach+0x0/0x39 > [ 1.472021] [<ffffffff812bc500>] ? bus_for_each_drv+0x46/0x77 > [ 1.472021] [<ffffffff812bd0cd>] ? device_attach+0x55/0x66 > [ 1.472021] [<ffffffff812bc350>] ? bus_probe_device+0x22/0x3b > [ 1.472021] [<ffffffff812baee5>] ? device_add+0x29c/0x406 > [ 1.472021] [<ffffffff81380b80>] ? hid_add_device+0x17c/0x1a0 > [ 1.472021] [<ffffffff8138da3e>] ? usbhid_probe+0x40b/0x468 > [ 1.472021] [<ffffffff8132fcc7>] ? usb_match_one_id+0x23/0x7f > [ 1.472021] [<ffffffff8133077a>] ? usb_probe_interface+0xd4/0x11b > [ 1.472021] [<ffffffff812bceef>] ? really_probe+0x8a/0x12e > [ 1.472021] [<ffffffff812bd01c>] ? __device_attach+0x0/0x39 > [ 1.472021] [<ffffffff812bc500>] ? bus_for_each_drv+0x46/0x77 > [ 1.472021] [<ffffffff812bd0cd>] ? device_attach+0x55/0x66 > [ 1.472021] [<ffffffff812bc350>] ? bus_probe_device+0x22/0x3b > [ 1.472021] [<ffffffff812baee5>] ? device_add+0x29c/0x406 > [ 1.472021] [<ffffffff8132f97a>] ? usb_set_configuration+0x5d6/0x655 > [ 1.472021] [<ffffffff8133710f>] ? generic_probe+0x71/0xc6 > [ 1.472021] [<ffffffff812bceef>] ? really_probe+0x8a/0x12e > [ 1.472021] [<ffffffff812bd01c>] ? __device_attach+0x0/0x39 > [ 1.472021] [<ffffffff812bc500>] ? bus_for_each_drv+0x46/0x77 > [ 1.472021] [<ffffffff812bd0cd>] ? device_attach+0x55/0x66 > [ 1.472021] [<ffffffff812bc350>] ? bus_probe_device+0x22/0x3b > [ 1.472021] [<ffffffff812baee5>] ? device_add+0x29c/0x406 > [ 1.472021] [<ffffffff81329b25>] ? usb_new_device+0x7b/0xdc > [ 1.472021] [<ffffffff8132a6f5>] ? hub_port_connect_change+0x5fc/0x89e > [ 1.472021] [<ffffffff8132e9ac>] ? usb_control_msg+0x12f/0x140 > [ 1.472021] [<ffffffff8132ad64>] ? hub_events+0x3cd/0x51d > [ 1.472021] [<ffffffff8132aef0>] ? hub_thread+0x3c/0x158 > [ 1.472021] [<ffffffff81054c0c>] ? autoremove_wake_function+0x0/0x2e > [ 1.472021] [<ffffffff8132aeb4>] ? hub_thread+0x0/0x158 > [ 1.472021] [<ffffffff810547d5>] ? kthread+0x79/0x81 > [ 1.472021] [<ffffffff81009564>] ? kernel_thread_helper+0x4/0x10 > [ 1.472021] [<ffffffff81008961>] ? int_ret_from_sys_call+0x7/0x1b > [ 1.472021] [<ffffffff8143121d>] ? retint_restore_args+0x5/0x6 > [ 1.472021] [<ffffffff81009560>] ? kernel_thread_helper+0x0/0x10 > [ 1.472021] ---[ end trace 0680a6f27492dd32 ]--- > > > > > > > > > _______________________________________________ > Xen-devel mailing list > Xen-devel@xxxxxxxxxxxxxxxxxxx > http://lists.xensource.com/xen-devel > _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel

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