From: Santosh Shilimkar <santosh.shilimkar@ti.com>
To: TAO HU <tghk48@motorola.com>
Cc: Bryan Wu <bryan.wu@canonical.com>, TAO HU <taohu@motorola.com>,
linux-omap <linux-omap@vger.kernel.org>
Subject: RE: OMAP4 ES2.0 Unhandled fault: imprecise external abort
Date: Fri, 14 Jan 2011 13:36:43 +0530 [thread overview]
Message-ID: <7c601ad1e2d45e00240055319cfec2f9@mail.gmail.com> (raw)
In-Reply-To: <AANLkTik4eDy+QcMqp-0KcNTS0FdQYTfka__e8wB8KcpA@mail.gmail.com>
> -----Original Message-----
> From: TAO HU [mailto:tghk48@motorola.com]
> Sent: Friday, January 14, 2011 1:29 PM
> To: Santosh Shilimkar
> Cc: Bryan Wu; TAO HU; linux-omap
> Subject: Re: OMAP4 ES2.0 Unhandled fault: imprecise external abort
>
> Hi, Santosh
>
> I think it depends on whether IRQ is enabled.
> It is a limitation for current L3 error logging mechanism.
>
L3 IRQ is always enabled except low power states. I guess
we patched this part as well so that error is not lost and
its logged.
It's not a limitation L3 interrupt but behavior of CPU.
Because scenario's where the I bit is cleared at CPU level
(Interrupt disable), it's immune to interrupts.
Note the interrupt is not lost but just got delayed a bit
next prev parent reply other threads:[~2011-01-14 8:06 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-11-24 3:11 OMAP4 ES2.0 Unhandled fault: imprecise external abort TAO HU
2010-11-24 4:21 ` Bryan Wu
2010-11-24 4:34 ` TAO HU
2010-11-24 4:44 ` Bryan Wu
2010-11-24 5:40 ` Santosh Shilimkar
2010-11-24 6:09 ` TAO HU
2010-11-24 6:23 ` Santosh Shilimkar
2011-01-13 21:38 ` Bryan Wu
2011-01-14 7:17 ` Santosh Shilimkar
2011-01-14 7:58 ` TAO HU
2011-01-14 8:06 ` Santosh Shilimkar [this message]
2011-01-14 17:54 ` Bryan Wu
2011-01-14 18:01 ` Santosh Shilimkar
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