NetBSD Problem Report #47682

From simonb@thistledown.com.au  Fri Mar 22 09:41:15 2013
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Date: Fri, 22 Mar 2013 19:38:26 +1100 (EST)
From: Simon Burge <simonb@NetBSD.org>
Reply-To: Simon Burge <simonb@NetBSD.org>
To: gnats-bugs@gnats.NetBSD.org
Subject: panic in ohci_free_std
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>Number:         47682
>Category:       kern
>Synopsis:       panic in ohci_free_std
>Confidential:   no
>Severity:       critical
>Priority:       medium
>Responsible:    skrll
>State:          closed
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Fri Mar 22 09:45:00 +0000 2013
>Closed-Date:    Fri Sep 30 07:44:44 +0000 2016
>Last-Modified:  Fri Sep 30 07:44:44 +0000 2016
>Originator:     Simon Burge
>Release:        NetBSD 6.0
>Organization:
>Environment:
	System: NetBSD athlon.thistledown.com.au 6.0 NetBSD 6.0 (THOREAU) #0: Sat Nov 24 09:37:16 EST 2012 simonb@thoreau.thistledown.com.au:/NetBSD/src6/sys/arch/amd64/compile/THOREAU amd64
	Architecture: x86_64
	Machine: amd64
>Description:
	I have a program that opens a usb temperature device via the
	ugen driver, and after a "while" (anywhere from a day or two up
	to two or so weeks) I get the following panic (via ten finger
	copy):

		uvm_fault(...)
		fatal page fault in supervisor mode
		trap type 6 code 0 ...
		kernel: page fault trap, code=0
		..
		ohci_free.std.clone.3() at netbsd:ohci_free.std.clone.3+0x17
		ohci_device_ctrl_start() ...
		usbd_transfer() ...
		usbd_do_request_flags_pipe() ...
		usbd_do_request_flags() ...
		ugenioctl() ...
		cdev_ioctl() ...
		VOP_IOCTL() ...
		vn_ioctl() ...
		sys_ioctl() ...
		syscall() ..
		db{1} >

	Note that the USB keyboard doesn't work in ddb, so please
	don't ask for more from ddb unless I can squeeze it into
	ddb.commandonenter.

>How-To-Repeat:
	Repeatedly open a ugen device?

>Fix:
	Non given.

>Release-Note:

>Audit-Trail:

Responsible-Changed-From-To: kern-bug-people->skrll
Responsible-Changed-By: skrll@NetBSD.org
Responsible-Changed-When: Sun, 25 Aug 2013 07:10:56 +0000
Responsible-Changed-Why:
Take


State-Changed-From-To: open->feedback
State-Changed-By: skrll@NetBSD.org
State-Changed-When: Sat, 23 Apr 2016 13:01:25 +0000
State-Changed-Why:
Does this appear in 7.99.28 (nick-nhusb merged)?


State-Changed-From-To: feedback->closed
State-Changed-By: dholland@NetBSD.org
State-Changed-When: Fri, 30 Sep 2016 07:44:44 +0000
State-Changed-Why:
Feedback timeout.


>Unformatted:

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