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Date: Sun, 16 Aug 2009 17:50:08 GMT
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To: freebsd-usb@FreeBSD.org
From: Vsevolod Kozlov <zaba@thorium.homeunix.org>
Cc: 
Subject: Re: usb/137848: Page fault when using an USB bluetooth adapter
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The following reply was made to PR usb/137848; it has been noted by GNATS.

From: Vsevolod Kozlov <zaba@thorium.homeunix.org>
To: bug-followup@FreeBSD.org
Cc:  
Subject: Re: usb/137848: Page fault when using an USB bluetooth adapter
Date: Sun, 16 Aug 2009 21:29:18 +0400

 It looks like I forgot about the stack trace:
 
 (kgdb) bt
 #0  doadump () at pcpu.h:196
 #1  0xc0790eb7 in boot (howto=260) at /usr/src/sys/kern/kern_shutdown.c:418
 #2  0xc0791189 in panic (fmt=Variable "fmt" is not available.
 ) at /usr/src/sys/kern/kern_shutdown.c:574
 #3  0xc0aa33bc in trap_fatal (frame=0xcbcf3be4, eva=16) at /usr/src/sys/i386/i386/trap.c:939
 #4  0xc0aa3640 in trap_pfault (frame=0xcbcf3be4, usermode=0, eva=16) at /usr/src/sys/i386/i386/trap.c:852
 #5  0xc0aa3ffc in trap (frame=0xcbcf3be4) at /usr/src/sys/i386/i386/trap.c:530
 #6  0xc0a89e6b in calltrap () at /usr/src/sys/i386/i386/exception.s:159
 #7  0xc06ee200 in uhci_free_std_chain (sc=0xc211f000, std=0x0, stdend=0xc211b420) at /usr/src/sys/dev/usb/uhci.c:1685
 #8  0xc06ee477 in uhci_device_ctrl_done (xfer=0xc290a000) at /usr/src/sys/dev/usb/uhci.c:2902
 #9  0xc0700629 in usb_transfer_complete (xfer=0xc290a000) at /usr/src/sys/dev/usb/usbdi.c:977
 #10 0xc06ee5ab in uhci_transfer_complete (xfer=0xc290a000) at /usr/src/sys/dev/usb/uhci.c:2109
 #11 0xc06eedc4 in uhci_abort_xfer (xfer=0xc290a000, status=USBD_NORMAL_COMPLETION) at /usr/src/sys/dev/usb/uhci.c:2068
 #12 0xc06f02e0 in uhci_timeout_task (addr=0xc290a000) at /usr/src/sys/dev/usb/uhci.c:1485
 #13 0xc06fd0a1 in usb_task_thread (arg=0xc0c3c020) at /usr/src/sys/dev/usb/usb.c:483
 #14 0xc076ca29 in fork_exit (callout=0xc06fcff0 <usb_task_thread>, arg=0xc0c3c020, frame=0xcbcf3d38) at /usr/src/sys/kern/kern_fork.c:804
 #15 0xc0a89ee0 in fork_trampoline () at /usr/src/sys/i386/i386/exception.s:264
 
 -- 
 Zaba