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Commit 6cc230f5 authored by Mark Salyzyn's avatar Mark Salyzyn Committed by Gerrit Code Review
Browse files

Merge changes I49c9f064,I946e8564 

* changes:
  llkd: Add cma_alloc stack symbol checking
  llkd: Add __get_user_page stack symbol checking
parents e06850af 00b2ce70

llkd/README.md

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Original line number Diff line number Diff line
@@ -127,7 +127,7 @@ Only active on userdebug and eng builds. 
default 2 minutes samples of threads for D or Z.



#### ro.llk.stack

default *empty* or false, comma separated list of kernel symbols.

default cma_alloc,__get_user_pages, comma separated list of kernel symbols.

The string "*false*" is the equivalent to an *empty* list.

Look for kernel stack symbols that if ever persistently present can

indicate a subsystem is locked up.

llkd/include/llkd.h

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@@ -48,7 +48,7 @@ unsigned llkCheckMilliseconds(void); 
/* LLK_CHECK_MS_DEFAULT = actual timeout_ms / LLK_CHECKS_PER_TIMEOUT_DEFAULT */

#define LLK_CHECKS_PER_TIMEOUT_DEFAULT 5

#define LLK_CHECK_STACK_PROPERTY       "ro.llk.stack"

#define LLK_CHECK_STACK_DEFAULT        ""

#define LLK_CHECK_STACK_DEFAULT        "cma_alloc,__get_user_pages"

#define LLK_BLACKLIST_PROCESS_PROPERTY "ro.llk.blacklist.process"

#define LLK_BLACKLIST_PROCESS_DEFAULT  \

    "0,1,2,init,[kthreadd],[khungtaskd],lmkd,lmkd.llkd,llkd,watchdogd,[watchdogd],[watchdogd/0]"