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Groups > linux.kernel > #1534981 > unrolled thread
| Started by | Andrey Konovalov <andreyknvl@google.com> |
|---|---|
| First post | 2016-12-02 15:40 +0100 |
| Last post | 2016-12-02 18:00 +0100 |
| Articles | 5 — 3 participants |
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usb: warning in vhci_hcd_probe/lockdep_init_map Andrey Konovalov <andreyknvl@google.com> - 2016-12-02 15:40 +0100
Re: usb: warning in vhci_hcd_probe/lockdep_init_map Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-12-02 17:10 +0100
Re: usb: warning in vhci_hcd_probe/lockdep_init_map Andrey Konovalov <andreyknvl@google.com> - 2016-12-02 17:20 +0100
Re: usb: warning in vhci_hcd_probe/lockdep_init_map Shuah Khan <shuah@kernel.org> - 2016-12-02 17:40 +0100
Re: usb: warning in vhci_hcd_probe/lockdep_init_map Shuah Khan <shuah@kernel.org> - 2016-12-02 18:00 +0100
| From | Andrey Konovalov <andreyknvl@google.com> |
|---|---|
| Date | 2016-12-02 15:40 +0100 |
| Subject | usb: warning in vhci_hcd_probe/lockdep_init_map |
| Message-ID | <sJXah-556-1@gated-at.bofh.it> |
Hi! I've got the following error report while booting the kernel with various usb configs enabled. On commit 2caceb3294a78c389b462e7e236a4e744a53a474 (Dec 1). gadgetfs: USB Gadget filesystem, version 24 Aug 2004 usbip_core: USB/IP Core v1.0.0 vhci_hcd vhci_hcd: USB/IP Virtual Host Controller vhci_hcd vhci_hcd: new USB bus registered, assigned bus number 2 BUG: key ffff88006a7e8d18 not in .data! ------------[ cut here ]------------ WARNING: CPU: 0 PID: 1 at kernel/locking/lockdep.c:3131 lockdep_init_map+0x60c/0x770 DEBUG_LOCKS_WARN_ON(1)[ 1.567044] Modules linked in: CPU: 0 PID: 1 Comm: swapper/0 Not tainted 4.9.0-rc7+ #58 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Bochs 01/01/2011 ffff88006bce6eb8 ffffffff81f96c8a ffffffff00000a02 1ffff1000d79cd6a ffffed000d79cd62 000000046bce6ed8 0000000041b58ab3 ffffffff8598af40 ffffffff81f969f8 0000000000000000 0000000041b58ab3 0000000000000200 Call Trace: [< inline >] __dump_stack lib/dump_stack.c:15 [<ffffffff81f96c8a>] dump_stack+0x292/0x398 lib/dump_stack.c:51 [<ffffffff812b808f>] __warn+0x19f/0x1e0 kernel/panic.c:550 [<ffffffff812b8195>] warn_slowpath_fmt+0xc5/0x110 kernel/panic.c:565 [<ffffffff813f3efc>] lockdep_init_map+0x60c/0x770 kernel/locking/lockdep.c:3131 [<ffffffff819e43d4>] __kernfs_create_file+0x114/0x2a0 fs/kernfs/file.c:954 [<ffffffff819e68f5>] sysfs_add_file_mode_ns+0x225/0x520 fs/sysfs/file.c:305 [< inline >] create_files fs/sysfs/group.c:64 [<ffffffff819e8a89>] internal_create_group+0x239/0x8f0 fs/sysfs/group.c:134 [<ffffffff819e915f>] sysfs_create_group+0x1f/0x30 fs/sysfs/group.c:156 [<ffffffff8323de24>] vhci_start+0x5b4/0x7a0 drivers/usb/usbip/vhci_hcd.c:978 [<ffffffff82c907ca>] usb_add_hcd+0x8da/0x1c60 drivers/usb/core/hcd.c:2867 [<ffffffff8323bc57>] vhci_hcd_probe+0x97/0x130 drivers/usb/usbip/vhci_hcd.c:1103 [<ffffffff827484ca>] platform_drv_probe+0x8a/0x180 drivers/base/platform.c:568 [< inline >] really_probe drivers/base/dd.c:375 [<ffffffff82741db4>] driver_probe_device+0x514/0x980 drivers/base/dd.c:515 [<ffffffff8274260b>] __device_attach_driver+0x22b/0x290 drivers/base/dd.c:610 [<ffffffff8273b3bc>] bus_for_each_drv+0x15c/0x200 drivers/base/bus.c:463 [<ffffffff827415c6>] __device_attach+0x266/0x3c0 drivers/base/dd.c:667 [<ffffffff8274270a>] device_initial_probe+0x1a/0x20 drivers/base/dd.c:714 [<ffffffff8273ec06>] bus_probe_device+0x1e6/0x290 drivers/base/bus.c:557 [<ffffffff82738266>] device_add+0xd06/0x1660 drivers/base/core.c:1136 [<ffffffff82747f55>] platform_device_add+0x315/0x660 drivers/base/platform.c:408 [<ffffffff82749ba6>] platform_device_register_full+0x396/0x4b0 drivers/base/platform.c:540 [< inline >] platform_device_register_resndata ./include/linux/platform_device.h:111 [< inline >] platform_device_register_simple ./include/linux/platform_device.h:140 [< inline >] add_platform_device drivers/usb/usbip/vhci_hcd.c:1213 [<ffffffff864e87aa>] vhci_hcd_init+0x215/0x305 drivers/usb/usbip/vhci_hcd.c:1254 [<ffffffff81000696>] do_one_initcall+0xf6/0x360 init/main.c:778 [< inline >] do_initcall_level init/main.c:844 [< inline >] do_initcalls init/main.c:852 [< inline >] do_basic_setup init/main.c:870 [<ffffffff86424f84>] kernel_init_freeable+0x5c7/0x6a1 init/main.c:1017 [<ffffffff84f2b7d3>] kernel_init+0x13/0x180 init/main.c:943 [<ffffffff84f44f2a>] ret_from_fork+0x2a/0x40 arch/x86/entry/entry_64.S:433 ---[ end trace c33c7b202cf3aac8 ]---
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| From | Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
|---|---|
| Date | 2016-12-02 17:10 +0100 |
| Message-ID | <sJYzn-64D-9@gated-at.bofh.it> |
| In reply to | #1534981 |
On Fri, Dec 02, 2016 at 03:35:44PM +0100, Andrey Konovalov wrote: > Hi! > > I've got the following error report while booting the kernel with > various usb configs enabled. Any hint as to what these "various usb configs" are? > On commit 2caceb3294a78c389b462e7e236a4e744a53a474 (Dec 1). > > gadgetfs: USB Gadget filesystem, version 24 Aug 2004 > usbip_core: USB/IP Core v1.0.0 > vhci_hcd vhci_hcd: USB/IP Virtual Host Controller > vhci_hcd vhci_hcd: new USB bus registered, assigned bus number 2 > BUG: key ffff88006a7e8d18 not in .data! > ------------[ cut here ]------------ > WARNING: CPU: 0 PID: 1 at kernel/locking/lockdep.c:3131 > lockdep_init_map+0x60c/0x770 > DEBUG_LOCKS_WARN_ON(1)[ 1.567044] Modules linked in: > CPU: 0 PID: 1 Comm: swapper/0 Not tainted 4.9.0-rc7+ #58 > Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Bochs 01/01/2011 > ffff88006bce6eb8 ffffffff81f96c8a ffffffff00000a02 1ffff1000d79cd6a > ffffed000d79cd62 000000046bce6ed8 0000000041b58ab3 ffffffff8598af40 > ffffffff81f969f8 0000000000000000 0000000041b58ab3 0000000000000200 > Call Trace: > [< inline >] __dump_stack lib/dump_stack.c:15 > [<ffffffff81f96c8a>] dump_stack+0x292/0x398 lib/dump_stack.c:51 > [<ffffffff812b808f>] __warn+0x19f/0x1e0 kernel/panic.c:550 > [<ffffffff812b8195>] warn_slowpath_fmt+0xc5/0x110 kernel/panic.c:565 > [<ffffffff813f3efc>] lockdep_init_map+0x60c/0x770 kernel/locking/lockdep.c:3131 > [<ffffffff819e43d4>] __kernfs_create_file+0x114/0x2a0 fs/kernfs/file.c:954 > [<ffffffff819e68f5>] sysfs_add_file_mode_ns+0x225/0x520 fs/sysfs/file.c:305 > [< inline >] create_files fs/sysfs/group.c:64 > [<ffffffff819e8a89>] internal_create_group+0x239/0x8f0 fs/sysfs/group.c:134 > [<ffffffff819e915f>] sysfs_create_group+0x1f/0x30 fs/sysfs/group.c:156 > [<ffffffff8323de24>] vhci_start+0x5b4/0x7a0 drivers/usb/usbip/vhci_hcd.c:978 > [<ffffffff82c907ca>] usb_add_hcd+0x8da/0x1c60 drivers/usb/core/hcd.c:2867 > [<ffffffff8323bc57>] vhci_hcd_probe+0x97/0x130 drivers/usb/usbip/vhci_hcd.c:1103 > [<ffffffff827484ca>] platform_drv_probe+0x8a/0x180 drivers/base/platform.c:568 > [< inline >] really_probe drivers/base/dd.c:375 > [<ffffffff82741db4>] driver_probe_device+0x514/0x980 drivers/base/dd.c:515 > [<ffffffff8274260b>] __device_attach_driver+0x22b/0x290 drivers/base/dd.c:610 > [<ffffffff8273b3bc>] bus_for_each_drv+0x15c/0x200 drivers/base/bus.c:463 > [<ffffffff827415c6>] __device_attach+0x266/0x3c0 drivers/base/dd.c:667 > [<ffffffff8274270a>] device_initial_probe+0x1a/0x20 drivers/base/dd.c:714 > [<ffffffff8273ec06>] bus_probe_device+0x1e6/0x290 drivers/base/bus.c:557 > [<ffffffff82738266>] device_add+0xd06/0x1660 drivers/base/core.c:1136 > [<ffffffff82747f55>] platform_device_add+0x315/0x660 drivers/base/platform.c:408 > [<ffffffff82749ba6>] platform_device_register_full+0x396/0x4b0 drivers/base/platform.c:540 > [< inline >] platform_device_register_resndata ./include/linux/platform_device.h:111 > [< inline >] platform_device_register_simple ./include/linux/platform_device.h:140 > [< inline >] add_platform_device drivers/usb/usbip/vhci_hcd.c:1213 > [<ffffffff864e87aa>] vhci_hcd_init+0x215/0x305 drivers/usb/usbip/vhci_hcd.c:1254 > [<ffffffff81000696>] do_one_initcall+0xf6/0x360 init/main.c:778 > [< inline >] do_initcall_level init/main.c:844 > [< inline >] do_initcalls init/main.c:852 > [< inline >] do_basic_setup init/main.c:870 > [<ffffffff86424f84>] kernel_init_freeable+0x5c7/0x6a1 init/main.c:1017 > [<ffffffff84f2b7d3>] kernel_init+0x13/0x180 init/main.c:943 > [<ffffffff84f44f2a>] ret_from_fork+0x2a/0x40 arch/x86/entry/entry_64.S:433 > ---[ end trace c33c7b202cf3aac8 ]--- Odd, I don't see anything strange here. Shuah, any ideas what is going wrong here? thanks, greg k-h
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| From | Andrey Konovalov <andreyknvl@google.com> |
|---|---|
| Date | 2016-12-02 17:20 +0100 |
| Message-ID | <sJYJ4-69N-25@gated-at.bofh.it> |
| In reply to | #1535044 |
On Fri, Dec 2, 2016 at 4:58 PM, Greg Kroah-Hartman <gregkh@linuxfoundation.org> wrote: > On Fri, Dec 02, 2016 at 03:35:44PM +0100, Andrey Konovalov wrote: >> Hi! >> >> I've got the following error report while booting the kernel with >> various usb configs enabled. > > Any hint as to what these "various usb configs" are? Hi Greg, Here's my .config: https://gist.github.com/xairy/46bc7495dfa7d78701d937af81db0175 Thanks for looking at this! > >> On commit 2caceb3294a78c389b462e7e236a4e744a53a474 (Dec 1). >> >> gadgetfs: USB Gadget filesystem, version 24 Aug 2004 >> usbip_core: USB/IP Core v1.0.0 >> vhci_hcd vhci_hcd: USB/IP Virtual Host Controller >> vhci_hcd vhci_hcd: new USB bus registered, assigned bus number 2 >> BUG: key ffff88006a7e8d18 not in .data! >> ------------[ cut here ]------------ >> WARNING: CPU: 0 PID: 1 at kernel/locking/lockdep.c:3131 >> lockdep_init_map+0x60c/0x770 >> DEBUG_LOCKS_WARN_ON(1)[ 1.567044] Modules linked in: >> CPU: 0 PID: 1 Comm: swapper/0 Not tainted 4.9.0-rc7+ #58 >> Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Bochs 01/01/2011 >> ffff88006bce6eb8 ffffffff81f96c8a ffffffff00000a02 1ffff1000d79cd6a >> ffffed000d79cd62 000000046bce6ed8 0000000041b58ab3 ffffffff8598af40 >> ffffffff81f969f8 0000000000000000 0000000041b58ab3 0000000000000200 >> Call Trace: >> [< inline >] __dump_stack lib/dump_stack.c:15 >> [<ffffffff81f96c8a>] dump_stack+0x292/0x398 lib/dump_stack.c:51 >> [<ffffffff812b808f>] __warn+0x19f/0x1e0 kernel/panic.c:550 >> [<ffffffff812b8195>] warn_slowpath_fmt+0xc5/0x110 kernel/panic.c:565 >> [<ffffffff813f3efc>] lockdep_init_map+0x60c/0x770 kernel/locking/lockdep.c:3131 >> [<ffffffff819e43d4>] __kernfs_create_file+0x114/0x2a0 fs/kernfs/file.c:954 >> [<ffffffff819e68f5>] sysfs_add_file_mode_ns+0x225/0x520 fs/sysfs/file.c:305 >> [< inline >] create_files fs/sysfs/group.c:64 >> [<ffffffff819e8a89>] internal_create_group+0x239/0x8f0 fs/sysfs/group.c:134 >> [<ffffffff819e915f>] sysfs_create_group+0x1f/0x30 fs/sysfs/group.c:156 >> [<ffffffff8323de24>] vhci_start+0x5b4/0x7a0 drivers/usb/usbip/vhci_hcd.c:978 >> [<ffffffff82c907ca>] usb_add_hcd+0x8da/0x1c60 drivers/usb/core/hcd.c:2867 >> [<ffffffff8323bc57>] vhci_hcd_probe+0x97/0x130 drivers/usb/usbip/vhci_hcd.c:1103 >> [<ffffffff827484ca>] platform_drv_probe+0x8a/0x180 drivers/base/platform.c:568 >> [< inline >] really_probe drivers/base/dd.c:375 >> [<ffffffff82741db4>] driver_probe_device+0x514/0x980 drivers/base/dd.c:515 >> [<ffffffff8274260b>] __device_attach_driver+0x22b/0x290 drivers/base/dd.c:610 >> [<ffffffff8273b3bc>] bus_for_each_drv+0x15c/0x200 drivers/base/bus.c:463 >> [<ffffffff827415c6>] __device_attach+0x266/0x3c0 drivers/base/dd.c:667 >> [<ffffffff8274270a>] device_initial_probe+0x1a/0x20 drivers/base/dd.c:714 >> [<ffffffff8273ec06>] bus_probe_device+0x1e6/0x290 drivers/base/bus.c:557 >> [<ffffffff82738266>] device_add+0xd06/0x1660 drivers/base/core.c:1136 >> [<ffffffff82747f55>] platform_device_add+0x315/0x660 drivers/base/platform.c:408 >> [<ffffffff82749ba6>] platform_device_register_full+0x396/0x4b0 drivers/base/platform.c:540 >> [< inline >] platform_device_register_resndata ./include/linux/platform_device.h:111 >> [< inline >] platform_device_register_simple ./include/linux/platform_device.h:140 >> [< inline >] add_platform_device drivers/usb/usbip/vhci_hcd.c:1213 >> [<ffffffff864e87aa>] vhci_hcd_init+0x215/0x305 drivers/usb/usbip/vhci_hcd.c:1254 >> [<ffffffff81000696>] do_one_initcall+0xf6/0x360 init/main.c:778 >> [< inline >] do_initcall_level init/main.c:844 >> [< inline >] do_initcalls init/main.c:852 >> [< inline >] do_basic_setup init/main.c:870 >> [<ffffffff86424f84>] kernel_init_freeable+0x5c7/0x6a1 init/main.c:1017 >> [<ffffffff84f2b7d3>] kernel_init+0x13/0x180 init/main.c:943 >> [<ffffffff84f44f2a>] ret_from_fork+0x2a/0x40 arch/x86/entry/entry_64.S:433 >> ---[ end trace c33c7b202cf3aac8 ]--- > > Odd, I don't see anything strange here. Shuah, any ideas what is going > wrong here? > > thanks, > > greg k-h
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| From | Shuah Khan <shuah@kernel.org> |
|---|---|
| Date | 2016-12-02 17:40 +0100 |
| Message-ID | <sJZ2p-6fQ-21@gated-at.bofh.it> |
| In reply to | #1535056 |
On 12/02/2016 09:09 AM, Andrey Konovalov wrote: > On Fri, Dec 2, 2016 at 4:58 PM, Greg Kroah-Hartman > <gregkh@linuxfoundation.org> wrote: >> On Fri, Dec 02, 2016 at 03:35:44PM +0100, Andrey Konovalov wrote: >>> Hi! >>> >>> I've got the following error report while booting the kernel with >>> various usb configs enabled. >> >> Any hint as to what these "various usb configs" are? > > Hi Greg, > > Here's my .config: > https://gist.github.com/xairy/46bc7495dfa7d78701d937af81db0175 > > Thanks for looking at this! > >> >>> On commit 2caceb3294a78c389b462e7e236a4e744a53a474 (Dec 1). Looks like the above commit at the latest on Linus's master that is do with ovl: fix d_real() for stacked fs Nothing jumped out at me from the log. What's your ability to bisect the problem? >>> >>> gadgetfs: USB Gadget filesystem, version 24 Aug 2004 >>> usbip_core: USB/IP Core v1.0.0 >>> vhci_hcd vhci_hcd: USB/IP Virtual Host Controller >>> vhci_hcd vhci_hcd: new USB bus registered, assigned bus number 2 >>> BUG: key ffff88006a7e8d18 not in .data! >>> ------------[ cut here ]------------ >>> WARNING: CPU: 0 PID: 1 at kernel/locking/lockdep.c:3131 >>> lockdep_init_map+0x60c/0x770 >>> DEBUG_LOCKS_WARN_ON(1)[ 1.567044] Modules linked in: >>> CPU: 0 PID: 1 Comm: swapper/0 Not tainted 4.9.0-rc7+ #58 >>> Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Bochs 01/01/2011 >>> ffff88006bce6eb8 ffffffff81f96c8a ffffffff00000a02 1ffff1000d79cd6a >>> ffffed000d79cd62 000000046bce6ed8 0000000041b58ab3 ffffffff8598af40 >>> ffffffff81f969f8 0000000000000000 0000000041b58ab3 0000000000000200 >>> Call Trace: >>> [< inline >] __dump_stack lib/dump_stack.c:15 >>> [<ffffffff81f96c8a>] dump_stack+0x292/0x398 lib/dump_stack.c:51 >>> [<ffffffff812b808f>] __warn+0x19f/0x1e0 kernel/panic.c:550 >>> [<ffffffff812b8195>] warn_slowpath_fmt+0xc5/0x110 kernel/panic.c:565 >>> [<ffffffff813f3efc>] lockdep_init_map+0x60c/0x770 kernel/locking/lockdep.c:3131 >>> [<ffffffff819e43d4>] __kernfs_create_file+0x114/0x2a0 fs/kernfs/file.c:954 >>> [<ffffffff819e68f5>] sysfs_add_file_mode_ns+0x225/0x520 fs/sysfs/file.c:305 >>> [< inline >] create_files fs/sysfs/group.c:64 >>> [<ffffffff819e8a89>] internal_create_group+0x239/0x8f0 fs/sysfs/group.c:134 >>> [<ffffffff819e915f>] sysfs_create_group+0x1f/0x30 fs/sysfs/group.c:156 >>> [<ffffffff8323de24>] vhci_start+0x5b4/0x7a0 drivers/usb/usbip/vhci_hcd.c:978 >>> [<ffffffff82c907ca>] usb_add_hcd+0x8da/0x1c60 drivers/usb/core/hcd.c:2867 >>> [<ffffffff8323bc57>] vhci_hcd_probe+0x97/0x130 drivers/usb/usbip/vhci_hcd.c:1103 >>> [<ffffffff827484ca>] platform_drv_probe+0x8a/0x180 drivers/base/platform.c:568 >>> [< inline >] really_probe drivers/base/dd.c:375 >>> [<ffffffff82741db4>] driver_probe_device+0x514/0x980 drivers/base/dd.c:515 >>> [<ffffffff8274260b>] __device_attach_driver+0x22b/0x290 drivers/base/dd.c:610 >>> [<ffffffff8273b3bc>] bus_for_each_drv+0x15c/0x200 drivers/base/bus.c:463 >>> [<ffffffff827415c6>] __device_attach+0x266/0x3c0 drivers/base/dd.c:667 >>> [<ffffffff8274270a>] device_initial_probe+0x1a/0x20 drivers/base/dd.c:714 >>> [<ffffffff8273ec06>] bus_probe_device+0x1e6/0x290 drivers/base/bus.c:557 >>> [<ffffffff82738266>] device_add+0xd06/0x1660 drivers/base/core.c:1136 >>> [<ffffffff82747f55>] platform_device_add+0x315/0x660 drivers/base/platform.c:408 >>> [<ffffffff82749ba6>] platform_device_register_full+0x396/0x4b0 drivers/base/platform.c:540 >>> [< inline >] platform_device_register_resndata ./include/linux/platform_device.h:111 >>> [< inline >] platform_device_register_simple ./include/linux/platform_device.h:140 >>> [< inline >] add_platform_device drivers/usb/usbip/vhci_hcd.c:1213 >>> [<ffffffff864e87aa>] vhci_hcd_init+0x215/0x305 drivers/usb/usbip/vhci_hcd.c:1254 >>> [<ffffffff81000696>] do_one_initcall+0xf6/0x360 init/main.c:778 >>> [< inline >] do_initcall_level init/main.c:844 >>> [< inline >] do_initcalls init/main.c:852 >>> [< inline >] do_basic_setup init/main.c:870 >>> [<ffffffff86424f84>] kernel_init_freeable+0x5c7/0x6a1 init/main.c:1017 >>> [<ffffffff84f2b7d3>] kernel_init+0x13/0x180 init/main.c:943 >>> [<ffffffff84f44f2a>] ret_from_fork+0x2a/0x40 arch/x86/entry/entry_64.S:433 >>> ---[ end trace c33c7b202cf3aac8 ]--- >> >> Odd, I don't see anything strange here. Shuah, any ideas what is going >> wrong here? I will take a look at this. Nothing jumped out at me. >> >> thanks, >> >> greg k-h > > thanks, -- Shuah
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| From | Shuah Khan <shuah@kernel.org> |
|---|---|
| Date | 2016-12-02 18:00 +0100 |
| Message-ID | <sJZlL-6mx-5@gated-at.bofh.it> |
| In reply to | #1535065 |
On 12/02/2016 09:23 AM, Shuah Khan wrote: > On 12/02/2016 09:09 AM, Andrey Konovalov wrote: >> On Fri, Dec 2, 2016 at 4:58 PM, Greg Kroah-Hartman >> <gregkh@linuxfoundation.org> wrote: >>> On Fri, Dec 02, 2016 at 03:35:44PM +0100, Andrey Konovalov wrote: >>>> Hi! >>>> >>>> I've got the following error report while booting the kernel with >>>> various usb configs enabled. >>> >>> Any hint as to what these "various usb configs" are? >> >> Hi Greg, >> >> Here's my .config: >> https://gist.github.com/xairy/46bc7495dfa7d78701d937af81db0175 >> >> Thanks for looking at this! >> >>> >>>> On commit 2caceb3294a78c389b462e7e236a4e744a53a474 (Dec 1). > > Looks like the above commit at the latest on Linus's master > that is do with > > ovl: fix d_real() for stacked fs > > Nothing jumped out at me from the log. What's your ability to > bisect the problem? Greg/Andrey, Okay looks like the problem is due to vhci using dynamically allocated memory for the lock_key. This problem is introduced in commit: 0775a9cbc694e8c7276688be3bbd2f386167ab54 From 0775a9cbc694e8c7276688be3bbd2f386167ab54 Mon Sep 17 00:00:00 2001 From: Nobuo Iwata <nobuo.iwata@fujixerox.co.jp> Date: Mon, 13 Jun 2016 11:33:40 +0900 Subject: [PATCH] usbip: vhci extension: modifications to vhci driver which changed the attribute_group from static to dynamically allocated. I will see if I can fix this without undoing the commit itself thanks, -- Shuah > >>>> >>>> gadgetfs: USB Gadget filesystem, version 24 Aug 2004 >>>> usbip_core: USB/IP Core v1.0.0 >>>> vhci_hcd vhci_hcd: USB/IP Virtual Host Controller >>>> vhci_hcd vhci_hcd: new USB bus registered, assigned bus number 2 >>>> BUG: key ffff88006a7e8d18 not in .data! >>>> ------------[ cut here ]------------ >>>> WARNING: CPU: 0 PID: 1 at kernel/locking/lockdep.c:3131 >>>> lockdep_init_map+0x60c/0x770 >>>> DEBUG_LOCKS_WARN_ON(1)[ 1.567044] Modules linked in: >>>> CPU: 0 PID: 1 Comm: swapper/0 Not tainted 4.9.0-rc7+ #58 >>>> Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Bochs 01/01/2011 >>>> ffff88006bce6eb8 ffffffff81f96c8a ffffffff00000a02 1ffff1000d79cd6a >>>> ffffed000d79cd62 000000046bce6ed8 0000000041b58ab3 ffffffff8598af40 >>>> ffffffff81f969f8 0000000000000000 0000000041b58ab3 0000000000000200 >>>> Call Trace: >>>> [< inline >] __dump_stack lib/dump_stack.c:15 >>>> [<ffffffff81f96c8a>] dump_stack+0x292/0x398 lib/dump_stack.c:51 >>>> [<ffffffff812b808f>] __warn+0x19f/0x1e0 kernel/panic.c:550 >>>> [<ffffffff812b8195>] warn_slowpath_fmt+0xc5/0x110 kernel/panic.c:565 >>>> [<ffffffff813f3efc>] lockdep_init_map+0x60c/0x770 kernel/locking/lockdep.c:3131 >>>> [<ffffffff819e43d4>] __kernfs_create_file+0x114/0x2a0 fs/kernfs/file.c:954 >>>> [<ffffffff819e68f5>] sysfs_add_file_mode_ns+0x225/0x520 fs/sysfs/file.c:305 >>>> [< inline >] create_files fs/sysfs/group.c:64 >>>> [<ffffffff819e8a89>] internal_create_group+0x239/0x8f0 fs/sysfs/group.c:134 >>>> [<ffffffff819e915f>] sysfs_create_group+0x1f/0x30 fs/sysfs/group.c:156 >>>> [<ffffffff8323de24>] vhci_start+0x5b4/0x7a0 drivers/usb/usbip/vhci_hcd.c:978 >>>> [<ffffffff82c907ca>] usb_add_hcd+0x8da/0x1c60 drivers/usb/core/hcd.c:2867 >>>> [<ffffffff8323bc57>] vhci_hcd_probe+0x97/0x130 drivers/usb/usbip/vhci_hcd.c:1103 >>>> [<ffffffff827484ca>] platform_drv_probe+0x8a/0x180 drivers/base/platform.c:568 >>>> [< inline >] really_probe drivers/base/dd.c:375 >>>> [<ffffffff82741db4>] driver_probe_device+0x514/0x980 drivers/base/dd.c:515 >>>> [<ffffffff8274260b>] __device_attach_driver+0x22b/0x290 drivers/base/dd.c:610 >>>> [<ffffffff8273b3bc>] bus_for_each_drv+0x15c/0x200 drivers/base/bus.c:463 >>>> [<ffffffff827415c6>] __device_attach+0x266/0x3c0 drivers/base/dd.c:667 >>>> [<ffffffff8274270a>] device_initial_probe+0x1a/0x20 drivers/base/dd.c:714 >>>> [<ffffffff8273ec06>] bus_probe_device+0x1e6/0x290 drivers/base/bus.c:557 >>>> [<ffffffff82738266>] device_add+0xd06/0x1660 drivers/base/core.c:1136 >>>> [<ffffffff82747f55>] platform_device_add+0x315/0x660 drivers/base/platform.c:408 >>>> [<ffffffff82749ba6>] platform_device_register_full+0x396/0x4b0 drivers/base/platform.c:540 >>>> [< inline >] platform_device_register_resndata ./include/linux/platform_device.h:111 >>>> [< inline >] platform_device_register_simple ./include/linux/platform_device.h:140 >>>> [< inline >] add_platform_device drivers/usb/usbip/vhci_hcd.c:1213 >>>> [<ffffffff864e87aa>] vhci_hcd_init+0x215/0x305 drivers/usb/usbip/vhci_hcd.c:1254 >>>> [<ffffffff81000696>] do_one_initcall+0xf6/0x360 init/main.c:778 >>>> [< inline >] do_initcall_level init/main.c:844 >>>> [< inline >] do_initcalls init/main.c:852 >>>> [< inline >] do_basic_setup init/main.c:870 >>>> [<ffffffff86424f84>] kernel_init_freeable+0x5c7/0x6a1 init/main.c:1017 >>>> [<ffffffff84f2b7d3>] kernel_init+0x13/0x180 init/main.c:943 >>>> [<ffffffff84f44f2a>] ret_from_fork+0x2a/0x40 arch/x86/entry/entry_64.S:433 >>>> ---[ end trace c33c7b202cf3aac8 ]--- >>> >>> Odd, I don't see anything strange here. Shuah, any ideas what is going >>> wrong here? > > I will take a look at this. Nothing jumped out at me. > >>> >>> thanks, >>> >>> greg k-h >> >> > > thanks, > -- Shuah > > >
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