: Ram oops/panic logger

PATCH Superseded Marco Stornelli 1 participant 1 message Mar 6, 2010 Char and misc drivers

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Marco Stornelli

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2010-03-06 18:03 UTC #0 lore raw

PATCH 1/1 : Ram oops/panic logger

Ramoops, like mtdoops, can log oops/panic information but in RAM. It can be used with persistent RAM for systems without flash support. In addition, for this systems, with this driver, it's no more needed add to the kernel the mtd subsystem with advantage in footprint.

Signed-off-by Marco Stornelli <[email protected]>

drivers/char/Kconfig +7 -0

diff -Nuar linux-2.6.33-orig/drivers/char/Kconfig linux-2.6.33/drivers/char/Kconfig
@@ -1105,5 +1105,12 @@
 
 source "drivers/s390/char/Kconfig"
 
+config RAMOOPS
+	tristate "Log panic/oops to a RAM buffer"
+	default n
+	help
+	  This enables panic and oops messages to be logged to a circular
+	  buffer in RAM where it can be read back at some later point.
+
 endmenu

drivers/char/Makefile +1 -0

diff -Nuar linux-2.6.33-orig/drivers/char/Makefile linux-2.6.33/drivers/char/Makefile
@@ -107,6 +107,7 @@
 obj-$(CONFIG_TCG_TPM)		+= tpm/
 
 obj-$(CONFIG_PS3_FLASH)		+= ps3flash.o
+obj-$(CONFIG_RAMOOPS)		+= ramoops.o
 
 obj-$(CONFIG_JS_RTC)		+= js-rtc.o
 js-rtc-y = rtc.o

drivers/char/ramoops.c +163 -0

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