brain-hackers_pepepper-mirror
/
linux-brain
mirror of https://github.com/brain-hackers/linux-brain.git
1
0
Fork 0
Code Issues Projects Releases Wiki Activity

powerpc/fadump: Account for memory_limit while reserving memory 

commit 9a2921e5baca1d25eb8d21f21d1e90581a6d0f68 upstream.

If the memory chunk found for reserving memory overshoots the memory
limit imposed, do not proceed with reserving memory. Default behavior
was this until commit 140777a3d8df ("powerpc/fadump: consider reserved
ranges while reserving memory") changed it unwittingly.

Fixes: 140777a3d8df ("powerpc/fadump: consider reserved ranges while reserving memory")
Cc: stable@vger.kernel.org
Reported-by: kbuild test robot <lkp@intel.com>
Signed-off-by: Hari Bathini <hbathini@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/159057266320.22331.6571453892066907320.stgit@hbathini.in.ibm.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Hari Bathini 2020-05-27 15:14:35 +05:30 committed by Greg Kroah-Hartman
parent 6fd930da24
commit 6d9cc26aa1
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
arch/powerpc/kernel/fadump.c
View File

@ -601,7 +601,7 @@ int __init fadump_reserve_mem(void)
*/
base = fadump_locate_reserve_mem(base, size);
if (!base) {
if (!base || (base + size > mem_boundary)) {
pr_err("Failed to find memory chunk for reservation!\n");
goto error_out;
}