Sanjeev/Tony >-----Original Message----- >From: linux-omap-owner@xxxxxxxxxxxxxxx [mailto:linux-omap-owner@xxxxxxxxxxxxxxx] On Behalf Of Tony >Lindgren >Sent: Wednesday, February 10, 2010 11:34 AM >To: Premi, Sanjeev >Cc: linux-omap@xxxxxxxxxxxxxxx >Subject: Re: omap3evm: Doesn't boot at 4fa42e46 > >* Premi, Sanjeev <premi@xxxxxx> [100210 09:09]: >> > -----Original Message----- >> > From: linux-omap-owner@xxxxxxxxxxxxxxx >> > [mailto:linux-omap-owner@xxxxxxxxxxxxxxx] On Behalf Of Premi, Sanjeev >> > Sent: Tuesday, February 09, 2010 9:34 PM >> > To: linux-omap@xxxxxxxxxxxxxxx >> > Subject: RE: omap3evm: Doesn't boot at 4fa42e46 >> > >> > > -----Original Message----- >> > > From: linux-omap-owner@xxxxxxxxxxxxxxx >> > > [mailto:linux-omap-owner@xxxxxxxxxxxxxxx] On Behalf Of >> > Premi, Sanjeev >> > > Sent: Tuesday, February 09, 2010 9:02 PM >> > > To: linux-omap@xxxxxxxxxxxxxxx >> > > Subject: omap3evm: Doesn't boot at 4fa42e46 >> > > >> > > Hi all, >> > > >> > > Just updated my repo to the commit: >> > > >> > > commit 4fa42e4679324b0e3c54fb509535eea3923ccb63 >> > > Merge: e599f12 c446167 >> > > Author: Tony Lindgren <tony@xxxxxxxxxxx> >> > > Date: Thu Feb 4 20:07:44 2010 -0800 >> > > >> > > The kernel builds fine; but doesn't boot on the OMAP3EVM. >> > > >> > > I have been able to trace the code until rest_init(); but >> > > will need to restart debugging. >> > > There seems to be an exception during execution. >> > > >> > > Will continue to dig further. This is just an FYI. >> > > >> > >> > The kernel panics during I2C init in function omap3_evm_i2c_init() >> > during this call: >> > >> > omap_register_i2c_bus(2, 400, NULL, 0); I see that Zoom2/3 also don't boot up and given that DEBUG_LL does not work for these boards, its very difficult to narrow down the problem. After around 2 hours of narrowing down, this is what solves the issue probably: m0_entry seems to be null, causing strcmp() to crash. Patch: (will not apply as TABS are not there :) ) diff --git a/arch/arm/mach-omap2/mux.c b/arch/arm/mach-omap2/mux.c index 986077f..d5a03f8 100644 --- a/arch/arm/mach-omap2/mux.c +++ b/arch/arm/mach-omap2/mux.c @@ -435,7 +435,7 @@ int __init omap_mux_init_signal(char *muxname, int val) char *m0_entry = m->muxnames[0]; int i; - if (m0_name && strcmp(m0_name, m0_entry)) + if (m0_name && m0_entry && strcmp(m0_name, m0_entry)) continue; for (i = 0; i < OMAP_MUX_NR_MODES; i++) { -- 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
