From 988ca784d4840c87509e770a21d5d22105af8668 Mon Sep 17 00:00:00 2001 From: Mingli Yu Date: Fri, 5 Nov 2021 11:18:07 +0800 Subject: [PATCH] bootchartd.in: make sure only one bootchartd process When boot with "init=/sbin/bootchartd" as below: # runqemu qemux86 bootparams="init=/sbin/bootchartd" There are two bootchartd process after boot [1]. # ps -ef | grep bootchart root 101 1 0 03:27 ? 00:00:00 /bin/sh /sbin/bootchartd root 103 101 8 03:27 ? 00:00:02 /lib64/bootchart/bootchart-collector 50 root 106 1 0 03:27 ? 00:00:00 /bin/sh /sbin/bootchartd root 792 106 0 03:27 ? 00:00:00 /lib64/bootchart/bootchart-collector --usleep 1000000 root 794 725 0 03:27 ttyS0 00:00:00 grep bootchart # /sbin/bootchartd stop [bootchart] bootchart-collector started as pid 596 with 2 args: [bootchart] '--dump' [bootchart] '/tmp/bootchart.3lXpVDAq3v' [bootchart] Extracting profile data from pid 204 [bootchart] map 0xbed9a000 -> 0xbedbb000 size: 132k from 'bed9a000' 'bedbb000' [bootchart] read 135168 bytes of 135168 [bootchart] reading 150 chunks (of 150) ... [bootchart] wrote 18760 kbB [bootchart] bootchart-collector pid: 596 unmounted proc / clean exit But there still one process exist after the above stop command finish. # ps -ef | grep bootchartd root 202 1 0 09:09 ? 00:00:00 /bin/sh /sbin/bootchartd root 629 516 0 09:10 ? 00:00:00 grep bootchartd Remove the wait_boot which used to wait the boot process to finish to make sure only one bootchartd process and meanwhile we don't need the wait_boot logic because we either use "/sbin/bootchartd stop" to stop the bootchartd manually or install package bootchartd-stop-initscript altogether with bootchart2 to stop bootchartd automatically after boot. After patch: # ps -ef | grep bootchart root 101 1 0 03:36 ? 00:00:00 /bin/sh /sbin/bootchartd root 103 101 6 03:36 ? 00:00:04 /lib64/bootchart/bootchart-collector 50 root 596 592 0 03:37 ttyS0 00:00:00 grep bootchart [1] https://github.com/xrmx/bootchart/issues/94 Upstream-Status: Submitted [https://github.com/xrmx/bootchart/pull/95] Signed-off-by: Mingli Yu --- bootchartd.in | 1 - 1 file changed, 1 deletion(-) diff --git a/bootchartd.in b/bootchartd.in index 7979ef9..f0e466d 100755 --- a/bootchartd.in +++ b/bootchartd.in @@ -183,7 +183,6 @@ if [ $$ -eq 1 ]; then else # running inside the main system echo "bootchart: no initrd used; starting" start & - wait_boot & # wait a little, until the collector is going, before allowing # the rest of the system to charge ahead, so we catch it $USLEEP 250000 -- 2.17.1