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| author | Yinghai Lu <yinghai@kernel.org> | 2009-09-19 11:07:57 -0700 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-09-19 20:31:33 +0200 |
| commit | eda6da9286ad5b35b1eb70f6368958a8ee41a9dd (patch) | |
| tree | cbf0a1dda9c9bcf77a1a02170bd67db703129bc2 /arch/x86 | |
| parent | a017421ddcdf34474f1133b27e33ab2ca6c19b96 (diff) | |
| download | blackbird-op-linux-eda6da9286ad5b35b1eb70f6368958a8ee41a9dd.tar.gz blackbird-op-linux-eda6da9286ad5b35b1eb70f6368958a8ee41a9dd.zip | |
Revert 'x86: Fix system crash when loading with "reservetop" parameter'
After close looking, commit 8126dec3 will break:
1. some cpu feature in early stage too, like cpu_has_x2apic
2. will break built-in-command line
3. will break other memmap= and mem=
4. early_dbgp and early_console that will use early_ioremap to access mmio (?)
So revert it.
Reported-by: Hugh Dickins <hugh.dickins@tiscali.co.uk>,
Cc: Linus Torvalds <torvalds@linux-foundation.org>,
Cc: Andrew Morton <akpm@linux-foundation.org>,
LKML-Reference: <4AB51DFD.2000904@kernel.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86')
| -rw-r--r-- | arch/x86/kernel/setup.c | 30 |
1 files changed, 15 insertions, 15 deletions
diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c index 19f15c4076fb..f5baa2ae0c87 100644 --- a/arch/x86/kernel/setup.c +++ b/arch/x86/kernel/setup.c @@ -712,21 +712,6 @@ void __init setup_arch(char **cmdline_p) printk(KERN_INFO "Command line: %s\n", boot_command_line); #endif - strlcpy(command_line, boot_command_line, COMMAND_LINE_SIZE); - *cmdline_p = command_line; - -#ifdef CONFIG_X86_64 - /* - * Must call this twice: Once just to detect whether hardware doesn't - * support NX (so that the early EHCI debug console setup can safely - * call set_fixmap(), and then again after parsing early parameters to - * honor the respective command line option. - */ - check_efer(); -#endif - - parse_early_param(); - /* VMI may relocate the fixmap; do this before touching ioremap area */ vmi_init(); @@ -809,6 +794,21 @@ void __init setup_arch(char **cmdline_p) #endif #endif + strlcpy(command_line, boot_command_line, COMMAND_LINE_SIZE); + *cmdline_p = command_line; + +#ifdef CONFIG_X86_64 + /* + * Must call this twice: Once just to detect whether hardware doesn't + * support NX (so that the early EHCI debug console setup can safely + * call set_fixmap(), and then again after parsing early parameters to + * honor the respective command line option. + */ + check_efer(); +#endif + + parse_early_param(); + #ifdef CONFIG_X86_64 check_efer(); #endif |
