As we are about to write into the mmap'ed pointer using memset, we need
to specify PROT_WRITE [if we only say PROT_READ, then the memset should
generate a SIGSEGV].
Fixes: 897d21d14e99 ("i915/gem_caching: Remove libdrm dependency")
Signed-off-by: Chris Wilson <[email protected]>
Cc: Ramalingam C <[email protected]>
Cc: Dominik Grzegorzek <[email protected]>
---
tests/i915/gem_caching.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/tests/i915/gem_caching.c b/tests/i915/gem_caching.c
index 1d8989db7..894c4b12e 100644
--- a/tests/i915/gem_caching.c
+++ b/tests/i915/gem_caching.c
@@ -282,7 +282,7 @@ igt_main
val2 = i + 63;
cpu_ptr = gem_mmap__cpu(data.fd, scratch_buf->handle,
0, scratch_buf->surface[0].size,
- PROT_READ);
+ PROT_WRITE);
memset(cpu_ptr + start, val2, len);
--
2.28.0
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