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ion: fix cma alloc bug
author
Huang, Tao
<huangtao@rock-chips.com>
Fri, 26 Dec 2014 15:08:20 +0000
(23:08 +0800)
committer
Huang, Tao
<huangtao@rock-chips.com>
Fri, 26 Dec 2014 15:08:20 +0000
(23:08 +0800)
Fix this bug on ARM64:
BUG: failure at mm/slub.c:1351/new_slab()!
Kernel panic - not syncing: BUG!
CPU: 0 PID: 1596 Comm: Binder_5 Tainted: G O 3.10.0 #45
Call trace:
[<
ffffffc00008807c
>] dump_backtrace+0x0/0x144
[<
ffffffc0000881d0
>] show_stack+0x10/0x1c
[<
ffffffc000892838
>] dump_stack+0x1c/0x28
[<
ffffffc00088ffd0
>] panic+0xe4/0x210
[<
ffffffc00016673c
>] new_slab+0x50/0x248
[<
ffffffc000167b60
>] __slab_alloc.isra.59.constprop.63+0x1f4/0x2d0
[<
ffffffc000167cec
>] __kmalloc+0xb0/0x1c4
[<
ffffffc000092930
>] __dma_alloc_noncoherent+0x7c/0x158
[<
ffffffc000643cf0
>] ion_cma_allocate+0xfc/0x27c
[<
ffffffc0006404f8
>] ion_alloc+0x134/0x778
[<
ffffffc00064100c
>] ion_ioctl+0x15c/0x344
[<
ffffffc00017bfa8
>] vfs_ioctl+0x20/0x3c
[<
ffffffc00017c8ac
>] do_vfs_ioctl+0x474/0x540
[<
ffffffc00017c9d4
>] SyS_ioctl+0x5c/0x88
Signed-off-by: Huang, Tao <huangtao@rock-chips.com>
drivers/staging/android/ion/ion_cma_heap.c
patch
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diff --git
a/drivers/staging/android/ion/ion_cma_heap.c
b/drivers/staging/android/ion/ion_cma_heap.c
index 67a737fa39c29f042cdca94ad74fe77e3a98e89d..512f5688c06fdee373c8c374a536b72a2160bb52 100755
(executable)
--- a/
drivers/staging/android/ion/ion_cma_heap.c
+++ b/
drivers/staging/android/ion/ion_cma_heap.c
@@
-88,7
+88,7
@@
static int ion_cma_allocate(struct ion_heap *heap, struct ion_buffer *buffer,
}
info->cpu_addr = dma_alloc_attrs(dev, len, &(info->handle),
- GFP_
HIGH
USER | __GFP_ZERO, &attrs);
+ GFP_USER | __GFP_ZERO, &attrs);
if (!info->cpu_addr) {
dev_err(dev, "Fail to allocate(%lx) buffer\n", len);