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OHCI unplug kernel crash in kernel 4.3, 4.4 and 4.5

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  OHCI unplug kernel crash in kernel 4.3, 4.4 and 4.5 Stefani Seibold <stefani@seibold.net> - 2016-02-28 10:30 +0100
    Re: OHCI unplug kernel crash in kernel 4.3, 4.4 and 4.5 Greg KH <gregkh@linuxfoundation.org> - 2016-02-28 20:30 +0100
      Re: OHCI unplug kernel crash in kernel 4.3, 4.4 and 4.5 Alan Stern <stern@rowland.harvard.edu> - 2016-02-28 22:00 +0100
    Re: OHCI unplug kernel crash in kernel 4.3, 4.4 and 4.5 Greg KH <gregkh@linuxfoundation.org> - 2016-02-28 20:30 +0100

#1345197 — OHCI unplug kernel crash in kernel 4.3, 4.4 and 4.5

I still reported this bug 6 Weeks ago... and i checked it know with the
current kernel 4.5.0-rc5. The bug is yet not fixed.

A unplug of an USB 1.0 OHCI controller express card will result in a
kernel crash. The express card is attached via thunderbolt and a sonnet
express card to thunderbolt adapter. The computer hangs after the
unplug, only a power down fix the situation.

This is the kernel log of a kernel 4.4 via netconsole:

pciehp 0000:06:03.0:pcie24: Card not present on Slot(3)
pciehp 0000:06:03.0:pcie24: slot(3): Link Down event
pciehp 0000:06:03.0:pcie24: Link Down event ignored on slot(3): already
powering off
ehci-pci 0000:0b:00.2: HC died; cleaning up
ehci-pci 0000:0b:00.2: remove, state 4
usb usb5: USB disconnect, device number 1
pciehp 0000:00:1c.4:pcie04: Card not present on Slot(4)
pciehp 0000:00:1c.4:pcie04: slot(4): Link Down event
ehci-pci 0000:0b:00.2: USB bus 5 deregistered
ohci-pci 0000:0b:00.1: HC died; cleaning up
ohci-pci 0000:0b:00.1: remove, state 4
usb usb7: USB disconnect, device number 1
pciehp 0000:00:1c.4:pcie04: Link Down event ignored on slot(4): already
powering off
ohci-pci 0000:0b:00.1: USB bus 7 deregistered
ohci-pci 0000:0b:00.0: HC died; cleaning up
ohci-pci 0000:0b:00.0: remove, state 4
usb usb6: USB disconnect, device number 1
------------[ cut here ]------------
kernel BUG at drivers/iommu/intel-iommu.c:3592!
invalid opcode: 0000 [#1] PREEMPT SMP 
Modules linked in: ohci_pci ohci_hcd binfmt_misc netconsole configfs
bbswitch(O) iwlmvm iwlwifi vboxnetadp(O) vboxnetflt(O) vboxdrv(O)
nvidia(PO) vhost_net tun vhost kvm_intel kvm irqbypass dell_smm_hwmon
[last unloaded: netconsole]
CPU: 0 PID: 4857 Comm: kworker/0:3 Tainted: P           O    4.4.0-
gentoo #1
Hardware name: Dell Inc. XPS 2720/05R2TK  , BIOS A12 09/21/2015
Workqueue: pciehp-3 pciehp_power_thread
task: ffff8804070a2300 ti: ffff8803e4658000 task.ti: ffff8803e4658000
RIP: 0010:[<ffffffff8061edf4>]  [<ffffffff8061edf4>]
intel_unmap+0x1c4/0x1d0
RSP: 0018:ffff8803e465bb98  EFLAGS: 00010246
RAX: 0000000000000000 RBX: ffff8804225fb098 RCX: 00000000ffffc000
RDX: 0000000000000000 RSI: 00000000ffffc000 RDI: ffff8804225fb098
RBP: ffff8803e465bbd0 R08: 0000000000000000 R09: 0000000000000000
R10: ffff88046cc000c0 R11: 0000000000000000 R12: 00000000ffffffff
R13: 00000000ffffc000 R14: ffff880468caa400 R15: ffffe8ffffc13800
FS:  0000000000000000(0000) GS:ffff88047f200000(0000)
knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f2515680324 CR3: 000000000120a000 CR4: 00000000001406f0
Stack:
 ffff8804101e4a78 ffff8803e465bbf0 ffffea000f915840 00000000ffffffff
 ffffffff812a3ec0 ffff880468caa400 ffffe8ffffc13800 ffff8803e465bbf0
 ffffffff8061ee8a ffff88045e68f000 ffff8804225fb098 ffff8803e465bc28
Call Trace:
 [<ffffffff8061ee8a>] intel_free_coherent+0x5a/0xa0
 [<ffffffffa0ad4d04>] ohci_stop+0x144/0x1c0 [ohci_hcd]
 [<ffffffff807e1fb4>] usb_remove_hcd+0xe4/0x1a0
 [<ffffffff807f2203>] usb_hcd_pci_remove+0x63/0x130
 [<ffffffff80573e79>] pci_device_remove+0x39/0xc0
 [<ffffffff80714f46>] __device_release_driver+0x96/0x130
 [<ffffffff80715003>] device_release_driver+0x23/0x30
 [<ffffffff8056d84a>] pci_stop_bus_device+0x8a/0xa0
 [<ffffffff8056d7f1>] pci_stop_bus_device+0x31/0xa0
 [<ffffffff8056d7f1>] pci_stop_bus_device+0x31/0xa0
 [<ffffffff8056d7f1>] pci_stop_bus_device+0x31/0xa0
 [<ffffffff8056d962>] pci_stop_and_remove_bus_device+0x12/0x20
 [<ffffffff80585f0b>] pciehp_unconfigure_device+0x9b/0x180
 [<ffffffff80585a23>] pciehp_disable_slot+0x43/0xb0
 [<ffffffff80585b1d>] pciehp_power_thread+0x8d/0xb0
 [<ffffffff8028aa54>] process_one_work+0x144/0x3c0
 [<ffffffff8028ad1b>] worker_thread+0x4b/0x440
 [<ffffffff8028acd0>] ? process_one_work+0x3c0/0x3c0
 [<ffffffff8028acd0>] ? process_one_work+0x3c0/0x3c0
 [<ffffffff80290269>] kthread+0xc9/0xe0
 [<ffffffff802901a0>] ? kthread_create_on_node+0x180/0x180
 [<ffffffff80b4db2f>] ret_from_fork+0x3f/0x70
 [<ffffffff802901a0>] ? kthread_create_on_node+0x180/0x180
Code: f9 48 89 de e8 fe cd ff ff 4c 89 e6 4c 89 f7 e8 23 92 ff ff 4c 89
ef e8 0b cf ff ff 48 83 c4 10 5b 41 5c 41 5d 41 5e 41 5f 5d c3 <0f> 0b
e8 45 cf ff ff e9 f3 fe ff ff 0f 1f 44 00 00 55 48 8b 76 
RIP  [<ffffffff8061edf4>] intel_unmap+0x1c4/0x1d0
 RSP <ffff8803e465bb98>
---[ end trace ad0596f59dc3d9e0 ]---
BUG: unable to handle kernel paging request at ffffffffffffffd8
IP: [<ffffffff80290881>] kthread_data+0x11/0x20
PGD 120b067 PUD 120d067 PMD 0 
Oops: 0000 [#2] PREEMPT SMP 
Modules linked in: ohci_pci ohci_hcd binfmt_misc netconsole configfs
bbswitch(O) iwlmvm iwlwifi vboxnetadp(O) vboxnetflt(O) vboxdrv(O)
nvidia(PO) vhost_net tun vhost kvm_intel kvm irqbypass dell_smm_hwmon
[last unloaded: netconsole]
CPU: 0 PID: 4857 Comm: kworker/0:3 Tainted: P      D    O    4.4.0-
gentoo #1
Hardware name: Dell Inc. XPS 2720/05R2TK  , BIOS A12 09/21/2015
task: ffff8804070a2300 ti: ffff8803e4658000 task.ti: ffff8803e4658000
RIP: 0010:[<ffffffff80290881>]  [<ffffffff80290881>]
kthread_data+0x11/0x20
RSP: 0018:ffff8803e465b878  EFLAGS: 00010002
RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff814bd980
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8804070a2300
RBP: ffff8803e465b888 R08: 0000000000000000 R09: ffff880468dfe901
R10: 0000000000002800 R11: 000000000000001a R12: 0000000000000000
R13: 00000000000154c0 R14: ffff8804070a2300 R15: ffff88047f2154c0
FS:  0000000000000000(0000) GS:ffff88047f200000(0000)
knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000028 CR3: 000000000120a000 CR4: 00000000001406f0
Stack:
 ffffffff8028b8c1 ffff88047f2154c0 ffff8803e465b8e8 ffffffff80b49c5a
 ffff8803e465b8a8 ffffffff00000000 ffff8804070a2300 ffffffff80275bb8
 0000000000000000 ffff8803e465c000 ffff8803e465b930 ffff8803e465b498
Call Trace:
 [<ffffffff8028b8c1>] ? wq_worker_sleeping+0x11/0x90
 [<ffffffff80b49c5a>] __schedule+0x60a/0xaa0
 [<ffffffff80275bb8>] ? release_task+0x308/0x3e0
 [<ffffffff80b4a12c>] schedule+0x3c/0x90
 [<ffffffff80277242>] do_exit+0x702/0xa90
 [<ffffffff80207989>] oops_end+0x89/0xc0
 [<ffffffff80207beb>] die+0x4b/0x70
 [<ffffffff80204e94>] do_trap+0xb4/0x150
 [<ffffffff80204fa7>] do_error_trap+0x77/0xe0
 [<ffffffff8061edf4>] ? intel_unmap+0x1c4/0x1d0
 [<ffffffff80619eb6>] ? qi_submit_sync+0x2d6/0x3e0
 [<ffffffff80205700>] do_invalid_op+0x20/0x30
 [<ffffffff80b4f188>] invalid_op+0x18/0x20
 [<ffffffff8061edf4>] ? intel_unmap+0x1c4/0x1d0
 [<ffffffff8061ec51>] ? intel_unmap+0x21/0x1d0
 [<ffffffff8061ee8a>] intel_free_coherent+0x5a/0xa0
 [<ffffffffa0ad4d04>] ohci_stop+0x144/0x1c0 [ohci_hcd]
 [<ffffffff807e1fb4>] usb_remove_hcd+0xe4/0x1a0
 [<ffffffff807f2203>] usb_hcd_pci_remove+0x63/0x130
 [<ffffffff80573e79>] pci_device_remove+0x39/0xc0
 [<ffffffff80714f46>] __device_release_driver+0x96/0x130
 [<ffffffff80715003>] device_release_driver+0x23/0x30
 [<ffffffff8056d84a>] pci_stop_bus_device+0x8a/0xa0
 [<ffffffff8056d7f1>] pci_stop_bus_device+0x31/0xa0
 [<ffffffff8056d7f1>] pci_stop_bus_device+0x31/0xa0
 [<ffffffff8056d7f1>] pci_stop_bus_device+0x31/0xa0
 [<ffffffff8056d962>] pci_stop_and_remove_bus_device+0x12/0x20
 [<ffffffff80585f0b>] pciehp_unconfigure_device+0x9b/0x180
 [<ffffffff80585a23>] pciehp_disable_slot+0x43/0xb0
 [<ffffffff80585b1d>] pciehp_power_thread+0x8d/0xb0
 [<ffffffff8028aa54>] process_one_work+0x144/0x3c0
 [<ffffffff8028ad1b>] worker_thread+0x4b/0x440
 [<ffffffff8028acd0>] ? process_one_work+0x3c0/0x3c0
 [<ffffffff8028acd0>] ? process_one_work+0x3c0/0x3c0
 [<ffffffff80290269>] kthread+0xc9/0xe0
 [<ffffffff802901a0>] ? kthread_create_on_node+0x180/0x180
 [<ffffffff80b4db2f>] ret_from_fork+0x3f/0x70
 [<ffffffff802901a0>] ? kthread_create_on_node+0x180/0x180
Code: 02 00 00 00 e8 a1 fd ff ff 5d c3 0f 1f 44 00 00 66 2e 0f 1f 84 00
00 00 00 00 0f 1f 44 

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#1345372

On Sun, Feb 28, 2016 at 11:04:03AM -0800, Greg KH wrote:
> On Sun, Feb 28, 2016 at 10:24:32AM +0100, Stefani Seibold wrote:
> > I still reported this bug 6 Weeks ago... and i checked it know with the
> > current kernel 4.5.0-rc5. The bug is yet not fixed.
> > 
> > A unplug of an USB 1.0 OHCI controller express card will result in a
> > kernel crash. The express card is attached via thunderbolt and a sonnet
> > express card to thunderbolt adapter. The computer hangs after the
> > unplug, only a power down fix the situation.
> > 
> > This is the kernel log of a kernel 4.4 via netconsole:
> 
> Can you duplicate this without the nvidia driver loaded?

Oh, and without virtualbox, that is a horrid mess of total crap, NEVER
trust that code to do anything correctly.  I'm totally amazed that it
works at all, and it turns out, often times it really doesn't...

thanks,

greg k-h

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#1345380

On Sun, 28 Feb 2016, Greg KH wrote:

> On Sun, Feb 28, 2016 at 11:04:03AM -0800, Greg KH wrote:
> > On Sun, Feb 28, 2016 at 10:24:32AM +0100, Stefani Seibold wrote:
> > > I still reported this bug 6 Weeks ago... and i checked it know with the
> > > current kernel 4.5.0-rc5. The bug is yet not fixed.
> > > 
> > > A unplug of an USB 1.0 OHCI controller express card will result in a
> > > kernel crash. The express card is attached via thunderbolt and a sonnet
> > > express card to thunderbolt adapter. The computer hangs after the
> > > unplug, only a power down fix the situation.
> > > 
> > > This is the kernel log of a kernel 4.4 via netconsole:
> > 
> > Can you duplicate this without the nvidia driver loaded?
> 
> Oh, and without virtualbox, that is a horrid mess of total crap, NEVER
> trust that code to do anything correctly.  I'm totally amazed that it
> works at all, and it turns out, often times it really doesn't...

If the problem still occurs, please apply the diagnostic patch below
and post the resulting log messages.

Alan Stern



Index: usb-4.x/drivers/iommu/intel-iommu.c
===================================================================
--- usb-4.x.orig/drivers/iommu/intel-iommu.c
+++ usb-4.x/drivers/iommu/intel-iommu.c
@@ -2270,8 +2270,11 @@ static inline void unlink_domain_info(st
 	assert_spin_locked(&device_domain_lock);
 	list_del(&info->link);
 	list_del(&info->global);
-	if (info->dev)
+	if (info->dev) {
+		dev_info(info->dev, "unlink_domain_info\n");
+		dump_stack();
 		info->dev->archdata.iommu = NULL;
+	}
 }
 
 static void domain_remove_dev_info(struct dmar_domain *domain)

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#1345374

On Sun, Feb 28, 2016 at 10:24:32AM +0100, Stefani Seibold wrote:
> I still reported this bug 6 Weeks ago... and i checked it know with the
> current kernel 4.5.0-rc5. The bug is yet not fixed.
> 
> A unplug of an USB 1.0 OHCI controller express card will result in a
> kernel crash. The express card is attached via thunderbolt and a sonnet
> express card to thunderbolt adapter. The computer hangs after the
> unplug, only a power down fix the situation.
> 
> This is the kernel log of a kernel 4.4 via netconsole:

Can you duplicate this without the nvidia driver loaded?

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