diff mbox series

[3/3] linux-user: Align mmap_find_vma to host page size

Message ID 20181017015456.3293-4-richard.henderson@linaro.org
State Superseded
Headers show
Series linux-user: Fix shmat by honoring SHMLBA | expand

Commit Message

Richard Henderson Oct. 17, 2018, 1:54 a.m. UTC 
This can avoid stack allocation failures for i386 guest
on ppc64 (64k page) host.

Suggested-by: Laurent Vivier <laurent@vivier.eu>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

---
 linux-user/mmap.c | 2 ++
 1 file changed, 2 insertions(+)

-- 
2.17.2
diff mbox series

Patch

diff --git a/linux-user/mmap.c b/linux-user/mmap.c
index 47950ee9d7..735bc928fe 100644
--- a/linux-user/mmap.c
+++ b/linux-user/mmap.c
@@ -262,6 +262,8 @@  abi_ulong mmap_find_vma(abi_ulong start, abi_ulong size, abi_ulong align)
     abi_ulong addr;
     int wrapped, repeat;
 
+    align = MAX(align, qemu_host_page_size);
+
     /* If 'start' == 0, then a default start address is used. */
     if (start == 0) {
         start = mmap_next_start;