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vdso-compat: Increase the reserved buffer for compat vdso

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On Arch Linux with 5.18.3-zen1-1-zen kernel, the vdso's size is 3 pages which
exceeds the current 2-page reserved buffer. This commit simply increases the
reserved buffer size to 4 pages.

Fixes: https://github.com/checkpoint-restore/criu/issues/1916

Signed-off-by: Bui Quang Minh <minhquangbui99@gmail.com>
This commit is contained in:
Bui Quang Minh 2022-07-21 21:26:58 +07:00 committed by Andrei Vagin
parent b30f3ee3d3
commit 70a9cd6fbf
1 changed files with 1 additions and 1 deletions
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criu/vdso.c
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@ -479,7 +479,7 @@ out_close:
return ret;
}
#define COMPAT_VDSO_BUF_SZ (PAGE_SIZE * 2)
#define COMPAT_VDSO_BUF_SZ (PAGE_SIZE * 4)
static int vdso_fill_compat_symtable(struct vdso_maps *native, struct vdso_maps *compat)
{
void *vdso_mmap;