Commit-ID: a8d4c8246b290ce97f88752d833804843041ac84 Gitweb: http://git.kernel.org/tip/a8d4c8246b290ce97f88752d833804843041ac84 Author: Xunlei Pang <[email protected]> AuthorDate: Mon, 23 Jan 2017 14:48:23 +0800 Committer: Ingo Molnar <[email protected]> CommitDate: Mon, 23 Jan 2017 08:57:55 +0100
x86/crash: Update the stale comment in reserve_crashkernel() CRASH_KERNEL_ADDR_MAX has been missing for a long time, update it with a more detailed explanation. Signed-off-by: Xunlei Pang <[email protected]> Cc: Andrew Morton <[email protected]> Cc: Baoquan He <[email protected]> Cc: Borislav Petkov <[email protected]> Cc: Dave Young <[email protected]> Cc: Linus Torvalds <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Robert LeBlanc <[email protected]> Cc: Thomas Gleixner <[email protected]> Cc: [email protected] Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Ingo Molnar <[email protected]> --- arch/x86/kernel/setup.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c index 4cfba94..eb69b14 100644 --- a/arch/x86/kernel/setup.c +++ b/arch/x86/kernel/setup.c @@ -575,7 +575,9 @@ static void __init reserve_crashkernel(void) /* 0 means: find the address automatically */ if (crash_base <= 0) { /* - * kexec want bzImage is below CRASH_KERNEL_ADDR_MAX + * Set CRASH_ADDR_LOW_MAX upper bound for crash memory, + * as old kexec-tools loads bzImage below that, unless + * "crashkernel=size[KMG],high" is specified. */ crash_base = memblock_find_in_range(CRASH_ALIGN, high ? CRASH_ADDR_HIGH_MAX
