diff options
| author | Aneesh Kumar K.V | 2018-05-30 18:02:25 +0530 |
|---|---|---|
| committer | Michael Ellerman | 2018-06-02 01:48:11 +1000 |
| commit | 667416f38554eef94485496f3a27b93feb5a9fbb (patch) | |
| tree | 3d5991efde65334805a876fafb6ee8c7b862304b /Kconfig | |
| parent | 8af1da40669609707303eecdb857f48a5ba5792d (diff) | |
powerpc/mm: Fix kernel crash on page table free
Fix the below crash on Book3E 64. pgtable_page_dtor expects struct
page *arg.
Also call the destructor on non book3s platforms correctly. This frees
up the split PTL locks correctly if we had allocated them before.
Call Trace:
.kmem_cache_free+0x9c/0x44c (unreliable)
.ptlock_free+0x1c/0x30
.tlb_remove_table+0xdc/0x224
.free_pgd_range+0x298/0x500
.shift_arg_pages+0x10c/0x1e0
.setup_arg_pages+0x200/0x25c
.load_elf_binary+0x450/0x16c8
.search_binary_handler.part.11+0x9c/0x248
.do_execveat_common.isra.13+0x868/0xc18
.run_init_process+0x34/0x4c
.try_to_run_init_process+0x1c/0x68
.kernel_init+0xdc/0x130
.ret_from_kernel_thread+0x58/0x7c
Fixes: 702346768 ("powerpc/mm/nohash: Remove pte fragment dependency from nohash")
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'Kconfig')
0 files changed, 0 insertions, 0 deletions