* [PATCH][next] printk: reduce LOG_BUF_SHIFT range for H8300
@ 2020-08-12 7:31 John Ogness
2020-08-12 21:39 ` Steven Rostedt
` (2 more replies)
0 siblings, 3 replies; 4+ messages in thread
From: John Ogness @ 2020-08-12 7:31 UTC (permalink / raw)
To: Petr Mladek
Cc: Sergey Senozhatsky, Sergey Senozhatsky, Steven Rostedt,
Linus Torvalds, Greg Kroah-Hartman, linux-kernel
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
^ permalink raw reply [flat|nested] 4+ messages in thread* Re: [PATCH][next] printk: reduce LOG_BUF_SHIFT range for H8300
2020-08-12 7:31 [PATCH][next] printk: reduce LOG_BUF_SHIFT range for H8300 John Ogness
@ 2020-08-12 21:39 ` Steven Rostedt
2020-08-13 1:46 ` Sergey Senozhatsky
2020-08-13 13:20 ` Petr Mladek
2 siblings, 0 replies; 4+ messages in thread
From: Steven Rostedt @ 2020-08-12 21:39 UTC (permalink / raw)
To: John Ogness
Cc: Petr Mladek, Sergey Senozhatsky, Sergey Senozhatsky,
Linus Torvalds, Greg Kroah-Hartman, linux-kernel
On Wed, 12 Aug 2020 09:37:22 +0206
John Ogness <john.ogness@linutronix.de> wrote:
> 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>
Acked-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
-- Steve
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [PATCH][next] printk: reduce LOG_BUF_SHIFT range for H8300
2020-08-12 7:31 [PATCH][next] printk: reduce LOG_BUF_SHIFT range for H8300 John Ogness
2020-08-12 21:39 ` Steven Rostedt
@ 2020-08-13 1:46 ` Sergey Senozhatsky
2020-08-13 13:20 ` Petr Mladek
2 siblings, 0 replies; 4+ messages in thread
From: Sergey Senozhatsky @ 2020-08-13 1:46 UTC (permalink / raw)
To: John Ogness
Cc: Petr Mladek, Sergey Senozhatsky, Sergey Senozhatsky,
Steven Rostedt, Linus Torvalds, Greg Kroah-Hartman, linux-kernel
On (20/08/12 09:37), John Ogness wrote:
> 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>
Reviewed-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
-ss
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [PATCH][next] printk: reduce LOG_BUF_SHIFT range for H8300
2020-08-12 7:31 [PATCH][next] printk: reduce LOG_BUF_SHIFT range for H8300 John Ogness
2020-08-12 21:39 ` Steven Rostedt
2020-08-13 1:46 ` Sergey Senozhatsky
@ 2020-08-13 13:20 ` Petr Mladek
2 siblings, 0 replies; 4+ messages in thread
From: Petr Mladek @ 2020-08-13 13:20 UTC (permalink / raw)
To: John Ogness
Cc: Sergey Senozhatsky, Sergey Senozhatsky, Steven Rostedt,
Linus Torvalds, Greg Kroah-Hartman, linux-kernel
On Wed 2020-08-12 09:37:22, John Ogness wrote:
> 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>
This patch is committed in printk/linux.git, branch printk-rework.
Best Regards,
Petr
^ permalink raw reply [flat|nested] 4+ messages in thread
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2020-08-12 7:31 [PATCH][next] printk: reduce LOG_BUF_SHIFT range for H8300 John Ogness
2020-08-12 21:39 ` Steven Rostedt
2020-08-13 1:46 ` Sergey Senozhatsky
2020-08-13 13:20 ` Petr Mladek
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