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authorKen Chen <kenchen@google.com>2008-11-10 03:26:08 -0500
committerAlexey Dobriyan <adobriyan@gmail.com>2009-01-05 04:27:44 -0500
commit2ec220e27f5040aec1e88901c1b6ea3d135787ad (patch)
tree06ed111c8e331d47927d9b46386f4063b74ec419 /Documentation/filesystems/proc.txt
parent631f9c1868b970197747c80fc5168ad7d9fd5d53 (diff)
proc: add /proc/*/stack
/proc/*/stack adds the ability to query a task's stack trace. It is more useful than /proc/*/wchan as it provides full stack trace instead of single depth. Example output: $ cat /proc/self/stack [<c010a271>] save_stack_trace_tsk+0x17/0x35 [<c01827b4>] proc_pid_stack+0x4a/0x76 [<c018312d>] proc_single_show+0x4a/0x5e [<c016bdec>] seq_read+0xf3/0x29f [<c015a004>] vfs_read+0x6d/0x91 [<c015a0c1>] sys_read+0x3b/0x60 [<c0102eda>] syscall_call+0x7/0xb [<ffffffff>] 0xffffffff [add save_stack_trace_tsk() on mips, ACK Ralf --adobriyan] Signed-off-by: Ken Chen <kenchen@google.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Diffstat (limited to 'Documentation/filesystems/proc.txt')
-rw-r--r--Documentation/filesystems/proc.txt1
1 files changed, 1 insertions, 0 deletions
diff --git a/Documentation/filesystems/proc.txt b/Documentation/filesystems/proc.txt
index 71df353e367c..334ef2f983fa 100644
--- a/Documentation/filesystems/proc.txt
+++ b/Documentation/filesystems/proc.txt
@@ -140,6 +140,7 @@ Table 1-1: Process specific entries in /proc
140 statm Process memory status information 140 statm Process memory status information
141 status Process status in human readable form 141 status Process status in human readable form
142 wchan If CONFIG_KALLSYMS is set, a pre-decoded wchan 142 wchan If CONFIG_KALLSYMS is set, a pre-decoded wchan
143 stack Report full stack trace, enable via CONFIG_STACKTRACE
143 smaps Extension based on maps, the rss size for each mapped file 144 smaps Extension based on maps, the rss size for each mapped file
144.............................................................................. 145..............................................................................
145 146