Re: oprofile and ARM A9 hardware counter

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



Hi Paul,

On Wed, Apr 04, 2012 at 01:00:53AM +0100, Paul Walmsley wrote:
> On Tue, 3 Apr 2012, Will Deacon wrote:
> 
> > I'll take JTAG for a whirl to see where we are. If anything looks wrong in
> > my dmesg, please shout (there are plenty of things in there that look like
> > they've gone awry).
> 
> Might be worth booting with initcall_debug on the kernel command line.  
> That will probably be easier than dealing with JTAG.

JTAG is unusable anyway because it requires a new MLO, which makes the
problem disappear.

Using initcall_debug I tracked the hang down to cti_unlock:

	val = __raw_readl(base + LOCKSTATUS);

causes the board to die, presumably because CoreSight isn't in a fit state
to be poked.

Will
--
To unsubscribe from this list: send the line "unsubscribe linux-omap" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html


[Index of Archives]     [Linux Arm (vger)]     [ARM Kernel]     [ARM MSM]     [Linux Tegra]     [Linux WPAN Networking]     [Linux Wireless Networking]     [Maemo Users]     [Linux USB Devel]     [Video for Linux]     [Linux Audio Users]     [Yosemite Trails]     [Linux Kernel]     [Linux SCSI]

  Powered by Linux