Message ID | 20170330040349.GA31756@us.ibm.com (mailing list archive) |
---|---|
State | Accepted |
Headers | show |
On Thu, 2017-03-30 at 04:03:49 UTC, Sukadev Bhattiprolu wrote: > >From 3ae8d1ed31b01b92b172fe20e4560cfbfab135ec Mon Sep 17 00:00:00 2001 > From: root <root@furatripa-lp2.aus.stglabs.ibm.com> > Date: Mon, 27 Mar 2017 19:43:14 -0400 > Subject: [PATCH] powerpc/prom: Increase RMA size to 512MB > > When booting very large systems with a large initrd, we run out of > space for either the RTAS or the flattened device tree (FDT). Boot > fails with messages like: > > Could not allocate memory for RTAS > or > No memory for flatten_device_tree (no room) > > Increasing the minimum RMA size to 512MB fixes the problem. This > should not have an impact on smaller LPARs (with 256MB memory), > as the firmware will cap the RMA to the memory assigned to the LPAR. > > Fix is based on input/discussions with Michael Ellerman. Thanks to > Praveen K. Pandey for testing on a large system. > > Reported-by: Praveen K. Pandey <preveen.pandey@in.ibm.com> > Signed-off-by: Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com> Applied to powerpc next, thanks. https://git.kernel.org/powerpc/c/687da8fce1682c9f1e87530e731189 cheers
diff --git a/arch/powerpc/kernel/prom_init.c b/arch/powerpc/kernel/prom_init.c index 1c1b44e..dd8a04f 100644 --- a/arch/powerpc/kernel/prom_init.c +++ b/arch/powerpc/kernel/prom_init.c @@ -815,7 +815,7 @@ struct ibm_arch_vec __cacheline_aligned ibm_architecture_vec = { .virt_base = cpu_to_be32(0xffffffff), .virt_size = cpu_to_be32(0xffffffff), .load_base = cpu_to_be32(0xffffffff), - .min_rma = cpu_to_be32(256), /* 256MB min RMA */ + .min_rma = cpu_to_be32(512), /* 512MB min RMA */ .min_load = cpu_to_be32(0xffffffff), /* full client load */ .min_rma_percent = 0, /* min RMA percentage of total RAM */ .max_pft_size = 48, /* max log_2(hash table size) */