Date: Sun, 10 Feb 2013 08:19:21 -0500 From: Eitan Adler <lists@eitanadler.com> To: Hans Petter Selasky <hselasky@c2i.net> Cc: usb@freebsd.org, Adrian Chadd <adrian@freebsd.org> Subject: Re: panic on removing urtw0 Message-ID: <CAF6rxg=GKN3QCCpmR1us5bgixPGWxOmbUARvHxcbO-=3FTiuNw@mail.gmail.com> In-Reply-To: <201302100905.37797.hselasky@c2i.net> References: <CAF6rxgnGvJKwV3ej56eKx7UgZrnRYgm89VgkuQEpC-WOQU43Bg@mail.gmail.com> <CAF6rxgkeqpX3jjq1Nd47Rf6V-9bzDgrg-XtqyrsGVCu4u=mJbA@mail.gmail.com> <CAJ-Vmok_vC2hkkFuO3-9CZQWu8eKZ=99wvpUHw_6WzjJ1Y9fCQ@mail.gmail.com> <201302100905.37797.hselasky@c2i.net>
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[moving to -usb where this seemingly belongs]
On 10 February 2013 03:05, Hans Petter Selasky <hselasky@c2i.net> wrote:
> On Sunday 10 February 2013 03:17:03 Adrian Chadd wrote:
>> Yes to both - i think some USB stack / memory buffer changes are
>> responsible for your issue. :-)
>>
>
> Hi,
>
> Can you send me the backtrace of the panic and I'll fix it. I fixed panic upon
> attach.
[ textdump & kernel available upon request ]
Unread portion of the kernel message buffer:
urtw0: failed to stop (USB_ERR_NOT_CONFIGURED)
Fatal trap 12: page fault while in kernel mode
cpuid = 1; apic id = 01
fault virtual address = 0x368
fault code = supervisor read data, page not present
instruction pointer = 0x20:0xffffffff808c4be7
stack pointer = 0x28:0xffffff8227152730
frame pointer = 0x28:0xffffff8227152780
code segment = base 0x0, limit 0xfffff, type 0x1b
= DPL 0, pres 1, long 1, def32 0, gran 1
processor eflags = interrupt enabled, resume, IOPL = 0
current process = 15 (usbus2)
trap number = 12
panic: page fault
cpuid = 1
KDB: stack backtrace:
#0 0xffffffff8090c7a6 at kdb_backtrace+0x66
#1 0xffffffff808d67be at panic+0x1ce
#2 0xffffffff80bc4140 at trap_fatal+0x290
#3 0xffffffff80bc447d at trap_pfault+0x1ed
#4 0xffffffff80bc4a9e at trap+0x3ce
#5 0xffffffff80baf05f at calltrap+0x8
#6 0xffffffff809a541a at ieee80211_ageq_remove+0xea
#7 0xffffffff809a54c9 at ieee80211_ageq_drain_node+0x9
#8 0xffffffff809c584a at node_cleanup+0x6a
#9 0xffffffff809c5960 at node_free+0x30
#10 0xffffffff8077f97b at urtw_free_data_list+0x4b
#11 0xffffffff80785a45 at urtw_detach+0xd5
#12 0xffffffff80905a84 at device_detach+0x74
#13 0xffffffff80750388 at usb_detach_device+0x58
#14 0xffffffff80750524 at usb_unconfigure+0x34
#15 0xffffffff807507c5 at usb_free_device+0x195
#16 0xffffffff80758dce at uhub_explore+0x1be
#17 0xffffffff807590d4 at uhub_explore+0x4c4
--
Eitan Adler
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