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From: John Ogness <john.ogness@linutronix.de>
To: Petr Mladek <pmladek@suse.com>
Cc: Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com>,
	Sergey Senozhatsky <sergey.senozhatsky@gmail.com>,
	Steven Rostedt <rostedt@goodmis.org>,
	Linus Torvalds <torvalds@linux-foundation.org>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	linux-kernel@vger.kernel.org
Subject: [PATCH][next] printk: reduce LOG_BUF_SHIFT range for H8300
Date: Wed, 12 Aug 2020 09:37:22 +0206	[thread overview]
Message-ID: <20200812073122.25412-1-john.ogness@linutronix.de> (raw)

The .bss section for the h8300 is relatively small. A value of
CONFIG_LOG_BUF_SHIFT that is larger than 19 will create a static
printk ringbuffer that is too large. Limit the range appropriately
for the H8300.

Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: John Ogness <john.ogness@linutronix.de>
---
 based on next-20200811

 init/Kconfig | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/init/Kconfig b/init/Kconfig
index d6a0b31b13dc..2a5df1cf838c 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -682,7 +682,8 @@ config IKHEADERS
 
 config LOG_BUF_SHIFT
 	int "Kernel log buffer size (16 => 64KB, 17 => 128KB)"
-	range 12 25
+	range 12 25 if !H8300
+	range 12 19 if H8300
 	default 17
 	depends on PRINTK
 	help
-- 
2.20.1


             reply	other threads:[~2020-08-12  7:31 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-08-12  7:31 John Ogness [this message]
2020-08-12 21:39 ` [PATCH][next] printk: reduce LOG_BUF_SHIFT range for H8300 Steven Rostedt
2020-08-13  1:46 ` Sergey Senozhatsky
2020-08-13 13:20 ` Petr Mladek

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