Commit-ID: a8d4c8246b290ce97f88752d833804843041ac84 Gitweb: http://git.kernel.org/tip/a8d4c8246b290ce97f88752d833804843041ac84 Author: Xunlei Pang <xlp...@redhat.com> AuthorDate: Mon, 23 Jan 2017 14:48:23 +0800 Committer: Ingo Molnar <mi...@kernel.org> 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 <xlp...@redhat.com> Cc: Andrew Morton <a...@linux-foundation.org> Cc: Baoquan He <b...@redhat.com> Cc: Borislav Petkov <b...@alien8.de> Cc: Dave Young <dyo...@redhat.com> Cc: Linus Torvalds <torva...@linux-foundation.org> Cc: Peter Zijlstra <pet...@infradead.org> Cc: Robert LeBlanc <rob...@leblancnet.us> Cc: Thomas Gleixner <t...@linutronix.de> Cc: ke...@lists.infradead.org Link: http://lkml.kernel.org/r/1485154103-18426-1-git-send-email-xlp...@redhat.com Signed-off-by: Ingo Molnar <mi...@kernel.org> --- 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
