usb/105186: USB 2.0/ehci on FreeBSD 6.2-PRE/AMD64 crashes box
Hans Petter Selasky
hselasky at c2i.net
Tue Aug 14 08:01:17 PDT 2007
On Tuesday 14 August 2007, Khairil Yusof wrote:
> The following reply was made to PR usb/105186; it has been noted by GNATS.
>
> From: Khairil Yusof <kaeru at inigo-tech.com>
> To: bug-followup at FreeBSD.org, ohartman at zedat.fu-berlin.de
> Cc:
> Subject: Re: usb/105186: USB 2.0/ehci on FreeBSD 6.2-PRE/AMD64 crashes box
> Date: Tue, 14 Aug 2007 10:20:36 +0800
>
> I tried it with the new usb driver. More concerned with stability.
>
>
> RELEASE 6.2 AMD64
>
> - stock ehci driver, it will just reboot.
> - stock ohci driver, more stable, but eventually under heavy IO
> it will crash and reboot.
> - usb4bsd ohci driver + atausb, stable, no errors.
> - usb4bsd ehci driver + umass, it will hang
> - usb4bsd ehci driver + atausb, it will hang, but recover after
> g_vfs
> timeout
>
> The following are the results of usb4bsd ehci driver + atausb
> when it
> hangs:
Hi,
You can turn on more debugging in "umass" by:
sysctl hw.usb.umass.debug=-1
With /usr/src/sys/dev/ata/ata-usb.c:
Change the following variable manually to "5".
static const int atausbdebug = 0;
Then recompile the atausb module or kernel.
When it hangs the debug output is of interest.
--HPS
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