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Date: Mon, 13 Oct 2008 15:41:35 +0900 From: Tejun Heo <tj@...nel.org> To: Jens Axboe <jens.axboe@...cle.com> CC: Ingo Molnar <mingo@...e.hu>, Linus Torvalds <torvalds@...ux-foundation.org>, linux-kernel@...r.kernel.org, Andrew Morton <akpm@...ux-foundation.org>, Thomas Gleixner <tglx@...utronix.de>, "H. Peter Anvin" <hpa@...or.com>, Yinghai Lu <yinghai@...nel.org> Subject: [PATCH] block: add BIG FAT WARNING to CONFIG_DEBUG_BLOCK_EXT_DEVT CONFIG_DEBUG_BLOCK_EXT_DEVT can break booting even on some modern distros. Add BIG FAT WARNING to keep people at a safe distance. Signed-off-by: Tejun Heo <tj@...nel.org> --- Okay, w/ or w/o Ingo's change, it would be worthwhile to warn people more clearly so that we can at least say 'told ya'. :-) lib/Kconfig.debug | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug index aa81d28..44e67a1 100644 --- a/lib/Kconfig.debug +++ b/lib/Kconfig.debug @@ -652,6 +652,11 @@ config DEBUG_BLOCK_EXT_DEVT depends on BLOCK default n help + BIG FAT WARNING: ENABLING THIS OPTION MIGHT BREAK BOOTING ON + SOME DISTRIBUTIONS. DO NOT ENABLE THIS UNLESS YOU KNOW WHAT + YOU ARE DOING. Distros, please enable this and fix whatever + is broken. + Conventionally, block device numbers are allocated from predetermined contiguous area. However, extended block area may introduce non-contiguous block device numbers. This -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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