Re: 2.6.13-rc3-mm1

From: Andrew Morton
Date: Mon Jul 25 2005 - 01:48:17 EST

Richard Purdie <rpurdie@xxxxxxxxx> wrote:
> On Fri, 2005-07-15 at 01:36 -0700, Andrew Morton wrote:
> >
> On the Zaurus I'm seeing a couple of false "BUG: soft lockup detected on
> CPU#0!" reports. These didn't show under 2.6.12-mm1 which was the last
> -mm kernel I tested. softlockup.c seems identical between these versions
> so it looks like some other change has caused this to appear...
> Both of these are triggered from the nand driver. The functions
> concerned (nand_wait_ready and nand_read_buf) are known to be slow (they
> wait on hardware).

OK, thanks. We can stick a touch_softlockup_watchdog() into those two
functions to tell them that we know what we're doing. If you have time to
write-and-test a patch then please do so - otherwise I'll take an untested
shot at it.
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