• Ingo Molnar's avatar
    x86: AMD Athlon X2 hard hang fix · 34508f66
    Ingo Molnar authored
    An Athlon 64 X2 test system showed hard hangs shortly after marking
    the kernel text read-only, if we tried to preserve largepages and
    changed the PSE entry from RW to RO. The pagetable code itself is
    correct, it's the CPU that locked up hard (and not even the NMI
    watchdog could punch through that hard hang).
    
    So be conservative and always do splitups - like we did in the past.
    Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
    34508f66
pageattr.c 17.9 KB