proxmox-mirrors/qemu
1
0
Fork 0
mirror of https://git.proxmox.com/git/qemu synced 2025-08-14 21:04:41 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

linux-user: mmap_reserve() not controlled by RESERVED_VA

Browse Source 
mmap_reserve() should be called only when RESERVED_VA is enabled.
Otherwise, unmaped virtual address space will never be reusable. This
bug will exhaust virtual address space in extreme conditions.

Signed-off-by: Riku Voipio <riku.voipio@nokia.com>
This commit is contained in:
amateur 2010-09-14 13:22:34 +08:00 committed by Riku Voipio
parent b0e102dd22
commit c65ffe6d6c
1 changed files with 3 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
linux-user/mmap.c
View File

@ -697,7 +697,9 @@ abi_long target_mremap(abi_ulong old_addr, abi_ulong old_size,
old_size, new_size, old_size, new_size,
flags | MREMAP_FIXED, flags | MREMAP_FIXED,
g2h(mmap_start)); g2h(mmap_start));
mmap_reserve(old_addr, old_size); if ( RESERVED_VA ) {
mmap_reserve(old_addr, old_size);
}
} }
} else { } else {
int prot = 0; int prot = 0;