On 09/11/2017 05:04 AM, Eugene Syromyatnikov wrote:
timer_stats was removed in Linux commit commit v4.11-rc1~177^2~5 citing security concerns.
Applied, with some tweaks. Thanks! Cheers, Michael
* man5/proc.5 (.SS Files and directories) <.TP .I /proc/timer_stats>: Mention the last Linux version where the file was available along with the reasons of removal. Signed-off-by: Eugene Syromyatnikov <evgsyr@xxxxxxxxx> --- man5/proc.5 | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/man5/proc.5 b/man5/proc.5 index 71486cc..7af4e02 100644 --- a/man5/proc.5 +++ b/man5/proc.5 @@ -5326,10 +5326,12 @@ This read-only file exposes a list of all currently pending (high-resolution) timers, all clock-event sources, and their parameters in a human-readable form. .TP -.IR /proc/timer_stats " (since Linux 2.6.21)" +.IR /proc/timer_stats " (since Linux 2.6.21, before Linux 4.11)" .\" commit 82f67cd9fca8c8762c15ba7ed0d5747588c1e221 .\" Date: Fri Feb 16 01:28:13 2007 -0800 .\" Text largely derived from Documentation/timers/timer_stats.txt +.\" removed in commit dfb4357da6ddbdf57d583ba64361c9d792b0e0b1 +.\" Date: Wed Feb 8 11:26:59 2017 -0800 This is a debugging facility to make timer (ab)use in a Linux system visible to kernel and user-space developers. It can be used by kernel and user-space developers to verify that @@ -5423,6 +5425,10 @@ the function where the timer was initialized; and (in parentheses) the callback function that is associated with the timer. .RE +.IP +During the Linux 4.11 development cycle this functionality has been removed, +as it exposes information across namespaces, and there is possibility to obtain +the same information via in-kernel tracing facilities such as ftrace. .TP .I /proc/tty Subdirectory containing the pseudo-files and subdirectories for
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