From eda6da9286ad5b35b1eb70f6368958a8ee41a9dd Mon Sep 17 00:00:00 2001 From: Yinghai Lu Date: Sat, 19 Sep 2009 11:07:57 -0700 Subject: [PATCH] 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 , Cc: Linus Torvalds , Cc: Andrew Morton , LKML-Reference: <4AB51DFD.2000904@kernel.org> Signed-off-by: Ingo Molnar --- arch/x86/kernel/setup.c | 30 +++++++++++++++--------------- 1 file changed, 15 insertions(+), 15 deletions(-) diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c index 19f15c4076f..f5baa2ae0c8 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 -- 2.39.3