Scott Wood 61baf15555 powerpc/64e: Don't place the stack beyond TASK_SIZE ... Commit f4ea6dcb08 ("powerpc/mm: Enable mappings above 128TB") increased the task size on book3s, and introduced a mechanism to dynamically control whether a task uses these larger addresses. While the change to the task size itself was ifdef-protected to only apply on book3s, the change to STACK_TOP_USER64 was not. On book3e, this had the effect of trying to use addresses up to 128TiB for the stack despite a 64TiB task size limit -- which broke 64-bit userspace producing the following errors: Starting init: /sbin/init exists but couldn't execute it (error -14) Starting init: /bin/sh exists but couldn't execute it (error -14) Kernel panic - not syncing: No working init found. Try passing init= option to kernel. See Linux Documentation/admin-guide/init.rst for guidance. Fixes: f4ea6dcb08 ("powerpc/mm: Enable mappings above 128TB") Cc: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Signed-off-by: Scott Wood <oss@buserror.net>		2017-05-05 01:22:06 -05:00
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asm	powerpc/64e: Don't place the stack beyond TASK_SIZE	2017-05-05 01:22:06 -05:00
uapi/asm	powerpc/hugetlb: Add ABI defines for supported HugeTLB page sizes	2017-04-11 07:46:06 +10:00