Re: [Xen-devel] xen-swiotlb: WARNING: at kernel/smp.c:421 smp_ca

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
WARNING - OLD ARCHIVES

xen-devel

Re: [Xen-devel] xen-swiotlb: WARNING: at kernel/smp.c:421 smp_call_funct
