diff options
| author | Hugh Dickins <[email protected]> | 2008-07-02 22:48:03 +0100 |
|---|---|---|
| committer | Ingo Molnar <[email protected]> | 2008-07-03 08:19:18 +0200 |
| commit | 216705d2720dedf630b55d641737f430ead0c228 (patch) | |
| tree | 7de026a8524bb63f11e35713e69568ede674a49e /net/unix/sysctl_net_unix.c | |
| parent | efac41894df57d32b483ac622d03541b5b2692c0 (diff) | |
x86: fix Intel Mac booting with EFI
Fedora reports that mem_init()'s zap_low_mappings(), extended to SMP in
61165d7a035f6571c7576e7f51e7230157724c8d x86: fix app crashes after SMP
resume causes 32-bit Intel Mac machines to reboot very early when
booting with EFI.
The EFI code appears to manage low mappings for itself when needed; but
like many before it, confuses PSE with PAE. So it has only been mapping
half the space it needed when PSE but not PAE. This remained unnoticed
until we moved the SMP zap_low_mappings() before
efi_enter_virtual_mode(). Presumably could have been noticed years ago
if anyone ran a UP kernel on such machines?
Reported-by: Peter Jones <[email protected]>
Signed-off-by: Hugh Dickins <[email protected]>
Cc: Peter Jones <[email protected]>
Cc: Glauber Costa <[email protected]>
Cc: Andrew Morton <[email protected]>
Cc: Linus Torvalds <[email protected]>
Signed-off-by: Ingo Molnar <[email protected]>
Tested-by: Peter Jones <[email protected]>
Diffstat (limited to 'net/unix/sysctl_net_unix.c')
0 files changed, 0 insertions, 0 deletions