Thanks Scott. Fixing cpu 1 release address solved my problem. Also thanks for the CONFIG_LOWMEM_SIZE suggestions.
Regards, Farrukh Arshad -----Original Message----- From: Scott Wood [mailto:scottw...@freescale.com] Sent: Thursday, December 08, 2011 2:24 AM To: Arshad, Farrukh Cc: Linuxppc-dev@lists.ozlabs.org Subject: Re: Multi-OS on P1022RDK Failing On 12/07/2011 08:57 AM, Arshad, Farrukh wrote: > Core 0 kernel > > CONFIG_LOWMEM_SIZE = 0x10000000 > > CONFIG_PHYSICAL_START = 0x00000000 > > > > Core 1 kernel > > CONFIG_LOWMEM_SIZE = 0x10000000 > > CONFIG_PHYSICAL_START = 0x10000000 Why are you messing with CONFIG_LOWMEM_SIZE? That adjusts the lowmem/highmem split, not the total amount of memory that this instance of Linux will use (though you may get that behavior as a side effect if highmem is disabled). U-boot should set the memory node in the device tree based on the bootm_low/bootm_size environment variables. > # Boot from NFS > > setenv core0nfsbootargs root=/dev/nfs nfsroot=$serverip:/$core0rootfs > ip=<dev_ip>::<nfs_server_ip>:::eth0:off rw debug > console=$consoledev0,$baudrate maxcpus=1 > > setenv core1nfsbootargs root=/dev/nfs nfsroot=$serverip:/$core1rootfs > ip=<dev_ip_2>::<nfs_server_ip>:::eth0:off rw debug > console=$consoledev0,$baudrate maxcpus=1 maxcpus should be unnecessary -- there will only be one cpu in the device tree for each partition. > My problem is Core 0 kernel is booting successfully but Core 1 kernel > hangs after uncompressing kernel image, and after that I don't see > anything on the console. > > > > Any thoughts on what I am missing or doing incorrect? The "cpu 1 release" command should be using the address of the decompressed kernel (should be $bootm_low), not where the uImage was loaded. Also, the two serial ports you're using share an interrupt -- this shouldn't stop kernel message output, but it's going to be a problem for userspace usage of the port. You should remove the interrupts property from the serial node in both partitions, so Linux will poll instead. -Scott _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev
