Subject: kern/31906: ral(4) crashes kernel when unplugging ASUS card from Apple USB keyboard
To: None <kern-bug-people@netbsd.org, gnats-admin@netbsd.org,>
From: None <ghen@telenet.be>
List: netbsd-bugs
Date: 10/24/2005 11:20:01
>Number: 31906
>Category: kern
>Synopsis: ral(4) crashes kernel when unplugging ASUS card from Apple USB keyboard
>Confidential: no
>Severity: critical
>Priority: low
>Responsible: kern-bug-people
>State: open
>Class: sw-bug
>Submitter-Id: net
>Arrival-Date: Mon Oct 24 11:20:00 +0000 2005
>Originator: Geert Hendrickx
>Release: current as of 20051023
>Organization:
>Environment:
NetBSD mantis 3.99.10 NetBSD 3.99.10 (MANTIS) #4: Sun Oct 23 16:03:26 CEST 2005 geert@mantis:/cvs/obj/sys/arch/i386/compile/MANTIS i386
>Description:
I'm using the ral(4) driver with an ASUS WL-167G usb wireless card on my HP
laptop running a 3.99.10 kernel. It works fine when I plug it directly
into one of the USB ports of my laptop, but not when I plug it into an USB
port on my Apple USB keyboard (which also acts as an USB hub with two extra
ports). I get the following when plugging it in:
(output is not copy/pasted but manually copied so may not be exact)
> ral0 at uhub5 port 3
> ral0: ASUS 802.11g WLAN Drive, rev 2.00/0.01, addr 4
> ral0: could not set configuration no
And when unplugging:
> ral0: at uhub5 port 3 (addr 4) disconnected
> uvm_fault (0x08ce9e0, 0, 0, 1) -> -0xe
> kernel: supervisor trap page fault, code=0
> stopped in pid 5.1 (usb1) at netbsd: ieee80211_remove_vop + 0x31: movl 0
> (%eax),%ebx
> db>
The kernel enters the debugger but everything, incl keyboard, is completely
frozen, hard reboot required... However I can use other USB devices (such
as mouse, flash memory) via that keyboard just fine.
>How-To-Repeat:
Build a -current kernel with "ral* at uhub? port ?", plug ASUS ral(4) usb card
into Apple usb keyboard and unplug again. It crashes every time.
>Fix: