私は慎重に実行され、私のCPUのコアを占めています。

2024-5-26 • tag-icon

スリープ状態でコンピュータを起動すると、2回（数週間の間隔で）突然気になることがわかりました。私のコアの1つの処理能力をすべて占めて、約5〜10分間実行していますが、このプロセスが始まる理由が疑問に思います。

Runningはpstreeそのプロセスをの直系の子孫として表示するので、startを担当するプロセスのようsystemdですが、起動のための構成を見つける方法がわかりません。systemdtimiditytimidity

straceプロセスを実行すると、次の結果が表示されます。

ioctl(4, SNDRV_PCM_IOCTL_HWSYNC, 0x7fff43107780) = 0
ioctl(4, SNDRV_PCM_IOCTL_HWSYNC, 0x3cd407d5) = 0
poll([{fd=6, events=POLLIN}], 1, 0)     = 0 (Timeout)
ioctl(6, SNDRV_SEQ_IOCTL_GET_QUEUE_STATUS, 0x16c83e0) = 0
ioctl(4, SNDRV_PCM_IOCTL_HWSYNC, 0x7fff43107780) = 0
ioctl(4, SNDRV_PCM_IOCTL_HWSYNC, 0x3cd407d5) = 0
poll([{fd=6, events=POLLIN}], 1, 0)     = 0 (Timeout)
ioctl(6, SNDRV_SEQ_IOCTL_GET_QUEUE_STATUS, 0x16c83e0) = 0
ioctl(4, SNDRV_PCM_IOCTL_HWSYNC, 0x7fff43107780) = 0
ioctl(4, SNDRV_PCM_IOCTL_HWSYNC, 0x3cd407d5) = 0
poll([{fd=6, events=POLLIN}], 1, 0)     = 0 (Timeout)
ioctl(6, SNDRV_SEQ_IOCTL_GET_QUEUE_STATUS, 0x16c83e0) = 0
ioctl(4, SNDRV_PCM_IOCTL_HWSYNC, 0x7fff43107780) = 0
ioctl(4, SNDRV_PCM_IOCTL_HWSYNC, 0x3cd407d5) = 0
poll([{fd=6, events=POLLIN}], 1, 0)     = 0 (Timeout)
ioctl(6, SNDRV_SEQ_IOCTL_GET_QUEUE_STATUS, 0x16c83e0) = 0
ioctl(4, SNDRV_PCM_IOCTL_HWSYNC, 0x7fff43107780) = 0
ioctl(4, SNDRV_PCM_IOCTL_HWSYNC, 0x3cd407d5) = 0
poll([{fd=6, events=POLLIN}], 1, 0)     = 0 (Timeout)
ioctl(6, SNDRV_SEQ_IOCTL_GET_QUEUE_STATUS, 0x16c83e0) = 0
ioctl(4, SNDRV_PCM_IOCTL_HWSYNC, 0x7fff43107780) = 0
ioctl(4, SNDRV_PCM_IOCTL_HWSYNC, 0x3cd407d5) = 0
poll([{fd=6, events=POLLIN}], 1, 0)     = 0 (Timeout)
ioctl(6, SNDRV_SEQ_IOCTL_GET_QUEUE_STATUS, 0x16c83e0) = 0
ioctl(4, SNDRV_PCM_IOCTL_HWSYNC, 0x7fff43107780) = 0
ioctl(4, SNDRV_PCM_IOCTL_HWSYNC, 0x3cd407d5) = 0
poll([{fd=6, events=POLLIN}], 1, 0)     = 0 (Timeout)
ioctl(6, SNDRV_SEQ_IOCTL_GET_QUEUE_STATUS, 0x16c83e0) = 0
ioctl(4, SNDRV_PCM_IOCTL_HWSYNC, 0x7fff43107780) = 0
ioctl(4, SNDRV_PCM_IOCTL_HWSYNC, 0x3cd407d5) = 0
poll([{fd=6, events=POLLIN}], 1, 0)     = 0 (Timeout)
ioctl(6, SNDRV_SEQ_IOCTL_GET_QUEUE_STATUS, 0x16c83e0) = 0
ioctl(4, SNDRV_PCM_IOCTL_HWSYNC, 0x7fff43107780) = 0
ioctl(4, SNDRV_PCM_IOCTL_HWSYNC, 0x3cd407d5) = 0
poll([{fd=6, events=POLLIN}], 1, 0)     = 0 (Timeout)
ioctl(6, SNDRV_SEQ_IOCTL_GET_QUEUE_STATUS, 0x16c83e0) = 0
ioctl(4, SNDRV_PCM_IOCTL_HWSYNC, 0x7fff43107780) = 0
ioctl(4, SNDRV_PCM_IOCTL_HWSYNC, 0x3cd407d5) = 0
poll([{fd=6, events=POLLIN}], 1, 0)     = 0 (Timeout)
ioctl(6, SNDRV_SEQ_IOCTL_GET_QUEUE_STATUS, 0x16c83e0) = 0
ioctl(4, SNDRV_PCM_IOCTL_HWSYNC, 0x7fff43107780) = 0
ioctl(4, SNDRV_PCM_IOCTL_HWSYNC, 0x3cd407d5) = 0
poll([{fd=6, events=POLLIN}], 1, 0)     = 0 (Timeout)
ioctl(6, SNDRV_SEQ_IOCTL_GET_QUEUE_STATUS, 0x16c83e0) = 0
ioctl(4, SNDRV_PCM_IOCTL_HWSYNC, 0x7fff43107780) = 0
ioctl(4, SNDRV_PCM_IOCTL_HWSYNC, 0x3cd407d5) = 0
poll([{fd=6, events=POLLIN}], 1, 0)     = 0 (Timeout)
ioctl(6, SNDRV_SEQ_IOCTL_GET_QUEUE_STATUS, 0x16c83e0) = 0
ioctl(4, SNDRV_PCM_IOCTL_HWSYNC, 0x7fff43107780) = 0
ioctl(4, SNDRV_PCM_IOCTL_HWSYNC, 0x3cd407d5) = 0
poll([{fd=6, events=POLLIN}], 1, 0)     = 0 (Timeout)
ioctl(6, SNDRV_SEQ_IOCTL_GET_QUEUE_STATUS, 0x16c83e0) = 0
ioctl(4, SNDRV_PCM_IOCTL_HWSYNC, 0x7fff43107780) = 0
ioctl(4, SNDRV_PCM_IOCTL_HWSYNC, 0x3cd407d5) = 0
poll([{fd=6, events=POLLIN}], 1, 0)     = 0 (Timeout)
ioctl(6, SNDRV_SEQ_IOCTL_GET_QUEUE_STATUS, 0x16c83e0) = 0
ioctl(4, SNDRV_PCM_IOCTL_HWSYNC, 0x7fff43107780) = 0
ioctl(4, SNDRV_PCM_IOCTL_HWSYNC, 0x3cd407d5) = 0
poll([{fd=6, events=POLLIN}], 1, 0)     = 0 (Timeout)
ioctl(6, SNDRV_SEQ_IOCTL_GET_QUEUE_STATUS, 0x16c83e0) = 0
ioctl(4, SNDRV_PCM_IOCTL_HWSYNC, 0x7fff43107780) = 0
ioctl(4, SNDRV_PCM_IOCTL_HWSYNC, 0x3cd407d5) = 0
poll([{fd=6, events=POLLIN}], 1, 0)     = 0 (Timeout)
ioctl(6, SNDRV_SEQ_IOCTL_GET_QUEUE_STATUS, 0x16c83e0) = 0
ioctl(4, SNDRV_PCM_IOCTL_HWSYNC, 0x7fff43107780) = 0
ioctl(4, SNDRV_PCM_IOCTL_HWSYNC, 0x3cd407d5) = 0
poll([{fd=6, events=POLLIN}], 1, 0)     = 0 (Timeout)
ioctl(6, SNDRV_SEQ_IOCTL_GET_QUEUE_STATUS, 0x16c83e0) = 0
ioctl(4, SNDRV_PCM_IOCTL_HWSYNC, 0x7fff43107780) = 0
ioctl(4, SNDRV_PCM_IOCTL_HWSYNC, 0x3cd407d5) = 0
poll([{fd=6, events=POLLIN}], 1, 0)     = 0 (Timeout)
ioctl(6, SNDRV_SEQ_IOCTL_GET_QUEUE_STATUS, 0x16c83e0) = 0
ioctl(4, SNDRV_PCM_IOCTL_HWSYNC, 0x7fff43107780) = 0
ioctl(4, SNDRV_PCM_IOCTL_HWSYNC, 0x3cd407d5) = 0
poll([{fd=6, events=POLLIN}], 1, 0)     = 0 (Timeout)
ioctl(6, SNDRV_SEQ_IOCTL_GET_QUEUE_STATUS, 0x16c83e0) = 0
ioctl(4, SNDRV_PCM_IOCTL_HWSYNC, 0x7fff43107780) = 0
ioctl(4, SNDRV_PCM_IOCTL_HWSYNC, 0x3cd407d5) = 0
poll([{fd=6, events=POLLIN}], 1, 0)     = 0 (Timeout)
ioctl(6, SNDRV_SEQ_IOCTL_GET_QUEUE_STATUS, 0x16c83e0) = 0
ioctl(4, SNDRV_PCM_IOCTL_HWSYNC, 0x7fff43107780) = 0
ioctl(4, SNDRV_PCM_IOCTL_HWSYNC, 0x3cd407d5) = 0
poll([{fd=6, events=POLLIN}], 1, 0)     = 0 (Timeout)
ioctl(6, SNDRV_SEQ_IOCTL_GET_QUEUE_STATUS, 0x16c83e0) = 0
ioctl(4, SNDRV_PCM_IOCTL_HWSYNC, 0x7fff43107780) = 0
ioctl(4, SNDRV_PCM_IOCTL_HWSYNC, 0x3cd407d5) = 0
poll([{fd=6, events=POLLIN}], 1, 0)     = 0 (Timeout)
ioctl(6, SNDRV_SEQ_IOCTL_GET_QUEUE_STATUS, 0x16c83e0) = 0
ioctl(4, SNDRV_PCM_IOCTL_HWSYNC, 0x7fff43107780) = 0
ioctl(4, SNDRV_PCM_IOCTL_HWSYNC, 0x3cd407d5) = 0
poll([{fd=6, events=POLLIN}], 1, 0)     = 0 (Timeout)
ioctl(6, SNDRV_SEQ_IOCTL_GET_QUEUE_STATUS, 0x16c83e0) = 0
ioctl(4, SNDRV_PCM_IOCTL_HWSYNC, 0x7fff43107780) = 0
ioctl(4, SNDRV_PCM_IOCTL_HWSYNC, 0x3cd407d5) = 0
poll([{fd=6, events=POLLIN}], 1, 0)     = 0 (Timeout)
ioctl(6, SNDRV_SEQ_IOCTL_GET_QUEUE_STATUS, 0x16c83e0) = 0
ioctl(4, SNDRV_PCM_IOCTL_HWSYNC, 0x7fff43107780) = 0
ioctl(4, SNDRV_PCM_IOCTL_HWSYNC, 0x3cd407d5) = 0
poll([{fd=6, events=POLLIN}], 1, 0)     = 0 (Timeout)
ioctl(6, SNDRV_SEQ_IOCTL_GET_QUEUE_STATUS, 0x16c83e0) = 0
ioctl(4, SNDRV_PCM_IOCTL_HWSYNC, 0x7fff43107780) = 0
ioctl(4, SNDRV_PCM_IOCTL_HWSYNC, 0x3cd407d5) = 0
poll([{fd=6, events=POLLIN}], 1, 0)     = 0 (Timeout)
ioctl(6, SNDRV_SEQ_IOCTL_GET_QUEUE_STATUS, 0x16c83e0) = 0
ioctl(4, SNDRV_PCM_IOCTL_HWSYNC, 0x7fff43107780) = 0
ioctl(4, SNDRV_PCM_IOCTL_HWSYNC, 0x3cd407d5) = 0
poll([{fd=6, events=POLLIN}], 1, 0)     = 0 (Timeout)
ioctl(6, SNDRV_SEQ_IOCTL_GET_QUEUE_STATUS, 0x16c83e0) = 0
ioctl(4, SNDRV_PCM_IOCTL_HWSYNC, 0x7fff43107780) = 0
ioctl(4, SNDRV_PCM_IOCTL_HWSYNC, 0x3cd407d5) = 0
poll([{fd=6, events=POLLIN}], 1, 0)     = 0 (Timeout)
ioctl(6, SNDRV_SEQ_IOCTL_GET_QUEUE_STATUS, 0x16c83e0) = 0
ioctl(4, SNDRV_PCM_IOCTL_HWSYNC, 0x7fff43107780) = 0
ioctl(4, SNDRV_PCM_IOCTL_HWSYNC, 0x3cd407d5) = 0
poll([{fd=6, events=POLLIN}], 1, 0)     = 0 (Timeout)
ioctl(6, SNDRV_SEQ_IOCTL_GET_QUEUE_STATUS, 0x16c83e0) = 0
ioctl(4, SNDRV_PCM_IOCTL_HWSYNC, 0x7fff43107780) = 0
ioctl(4, SNDRV_PCM_IOCTL_HWSYNC, 0x3cd407d5) = 0
poll([{fd=6, events=POLLIN}], 1, 0)     = 0 (Timeout)
ioctl(6, SNDRV_SEQ_IOCTL_GET_QUEUE_STATUS, 0x16c83e0) = 0
ioctl(4, SNDRV_PCM_IOCTL_HWSYNC, 0x7fff43107780) = 0
ioctl(4, SNDRV_PCM_IOCTL_HWSYNC, 0x3cd407d5) = 0
poll([{fd=6, events=POLLIN}], 1, 0)     = 0 (Timeout)
ioctl(6, SNDRV_SEQ_IOCTL_GET_QUEUE_STATUS, 0x16c83e0) = 0
ioctl(4, SNDRV_PCM_IOCTL_HWSYNC, 0x7fff43107780) = 0
ioctl(4, SNDRV_PCM_IOCTL_HWSYNC, 0x3cd407d5) = 0
poll([{fd=6, events=POLLIN}], 1, 0)     = 0 (Timeout)
ioctl(6, SNDRV_SEQ_IOCTL_GET_QUEUE_STATUS, 0x16c83e0) = 0
ioctl(4, SNDRV_PCM_IOCTL_HWSYNC, 0x7fff43107780) = 0
ioctl(4, SNDRV_PCM_IOCTL_HWSYNC, 0x3cd407d5) = 0
poll([{fd=6, events=POLLIN}], 1, 0)     = 0 (Timeout)
ioctl(6, SNDRV_SEQ_IOCTL_GET_QUEUE_STATUS, 0x16c83e0) = 0
ioctl(4, SNDRV_PCM_IOCTL_HWSYNC, 0x7fff43107780) = 0
ioctl(4, SNDRV_PCM_IOCTL_HWSYNC, 0x3cd407d5) = 0
poll([{fd=6, events=POLLIN}], 1, 0)     = 0 (Timeout)
ioctl(6, SNDRV_SEQ_IOCTL_GET_QUEUE_STATUS, 0x16c83e0) = 0
ioctl(4, SNDRV_PCM_IOCTL_HWSYNC, 0x7fff43107780) = 0
ioctl(4, SNDRV_PCM_IOCTL_HWSYNC, 0x3cd407d5) = 0
poll([{fd=6, events=POLLIN}], 1, 0)     = 0 (Timeout)
ioctl(6, SNDRV_SEQ_IOCTL_GET_QUEUE_STATUS, 0x16c83e0) = 0
ioctl(4, SNDRV_PCM_IOCTL_HWSYNC, 0x7fff43107780) = 0
ioctl(4, SNDRV_PCM_IOCTL_HWSYNC, 0x3cd407d5) = 0
poll([{fd=6, events=POLLIN}], 1, 0)     = 0 (Timeout)
ioctl(6, SNDRV_SEQ_IOCTL_GET_QUEUE_STATUS, 0x16c83e0) = 0
ioctl(4, SNDRV_PCM_IOCTL_HWSYNC, 0x7fff43107780) = 0
ioctl(4, SNDRV_PCM_IOCTL_HWSYNC, 0x3cd407d5) = 0
poll([{fd=6, events=POLLIN}], 1, 0)     = 0 (Timeout)
ioctl(6, SNDRV_SEQ_IOCTL_GET_QUEUE_STATUS, 0x16c83e0) = 0
ioctl(4, SNDRV_PCM_IOCTL_HWSYNC, 0x7fff43107780) = 0
ioctl(4, SNDRV_PCM_IOCTL_HWSYNC, 0x3cd407d5) = 0
poll([{fd=6, events=POLLIN}], 1, 0)     = 0 (Timeout)
ioctl(6, SNDRV_SEQ_IOCTL_GET_QUEUE_STATUS, 0x16c83e0) = 0
ioctl(4, SNDRV_PCM_IOCTL_HWSYNC, 0x7fff43107780) = 0
ioctl(4, SNDRV_PCM_IOCTL_HWSYNC, 0x3cd407d5) = 0
poll([{fd=6, events=POLLIN}], 1, 0)     = 0 (Timeout)
ioctl(6, SNDRV_SEQ_IOCTL_GET_QUEUE_STATUS, 0x16c83e0) = 0
ioctl(4, SNDRV_PCM_IOCTL_HWSYNC, 0x7fff43107780) = 0
ioctl(4, SNDRV_PCM_IOCTL_HWSYNC, 0x3cd407d5) = 0
poll([{fd=6, events=POLLIN}], 1, 0)     = 0 (Timeout)
ioctl(6, SNDRV_SEQ_IOCTL_GET_QUEUE_STATUS, 0x16c83e0) = 0
ioctl(4, SNDRV_PCM_IOCTL_HWSYNC, 0x7fff43107780) = 0
ioctl(4, SNDRV_PCM_IOCTL_HWSYNC, 0x3cd407d5) = 0
poll([{fd=6, events=POLLIN}], 1, 0)     = 0 (Timeout)
ioctl(6, SNDRV_SEQ_IOCTL_GET_QUEUE_STATUS, 0x16c83e0) = 0
ioctl(4, SNDRV_PCM_IOCTL_HWSYNC, 0x7fff43107780) = 0
ioctl(4, SNDRV_PCM_IOCTL_HWSYNC, 0x3cd407d5) = 0
poll([{fd=6, events=POLLIN}], 1, 0)     = 0 (Timeout)
ioctl(6, SNDRV_SEQ_IOCTL_GET_QUEUE_STATUS, 0x16c83e0) = 0
ioctl(4, SNDRV_PCM_IOCTL_HWSYNC, 0x7fff43107780) = 0
ioctl(4, SNDRV_PCM_IOCTL_HWSYNC, 0x3cd407d5) = 0
poll([{fd=6, events=POLLIN}], 1, 0)     = 0 (Timeout)
ioctl(6, SNDRV_SEQ_IOCTL_GET_QUEUE_STATUS, 0x16c83e0) = 0
ioctl(4, SNDRV_PCM_IOCTL_HWSYNC, 0x7fff43107780) = 0
ioctl(4, SNDRV_PCM_IOCTL_HWSYNC, 0x3cd407d5) = 0
poll([{fd=6, events=POLLIN}], 1, 0)     = 0 (Timeout)
ioctl(6, SNDRV_SEQ_IOCTL_GET_QUEUE_STATUS, 0x16c83e0) = 0
ioctl(4, SNDRV_PCM_IOCTL_HWSYNC, 0x7fff43107780) = 0
ioctl(4, SNDRV_PCM_IOCTL_HWSYNC, 0x3cd407d5) = 0
poll([{fd=6, events=POLLIN}], 1, 0)     = 0 (Timeout)
ioctl(6, SNDRV_SEQ_IOCTL_GET_QUEUE_STATUS, 0x16c83e0) = 0
ioctl(4, SNDRV_PCM_IOCTL_HWSYNC, 0x7fff43107780) = 0
ioctl(4, SNDRV_PCM_IOCTL_HWSYNC, 0x3cd407d5) = 0
poll([{fd=6, events=POLLIN}], 1, 0)     = 0 (Timeout)
ioctl(6, SNDRV_SEQ_IOCTL_GET_QUEUE_STATUS, 0x16c83e0) = 0
ioctl(4, SNDRV_PCM_IOCTL_HWSYNC, 0x7fff43107780) = 0
ioctl(4, SNDRV_PCM_IOCTL_HWSYNC, 0x3cd407d5) = 0
poll([{fd=6, events=POLLIN}], 1, 0)     = 0 (Timeout)
ioctl(6, SNDRV_SEQ_IOCTL_GET_QUEUE_STATUS, 0x16c83e0) = 0
ioctl(4, SNDRV_PCM_IOCTL_HWSYNC, 0x7fff43107780) = 0
ioctl(4, SNDRV_PCM_IOCTL_HWSYNC, 0x3cd407d5) = 0
poll([{fd=6, events=POLLIN}], 1, 0)     = 0 (Timeout)
ioctl(6, SNDRV_SEQ_IOCTL_GET_QUEUE_STATUS, 0x16c83e0) = 0
ioctl(4, SNDRV_PCM_IOCTL_HWSYNC, 0x7fff43107780) = 0
ioctl(4, SNDRV_PCM_IOCTL_HWSYNC, 0x3cd407d5) = 0

このプロセスで開くファイルは次のとおりです。

/dev/null
/dev/snd/timer
/dev/snd/pcmC0D0p
/dev/snd/controlC0
/dev/snd/seq

実行するコマンドラインは次のとおりです。

/usr/bin/timidity-Os-iAD

最後の3つのメッセージはからインポートされました/proc/$PID/。

それで、なぜ実行されているのか、どうすればわかるのかと尋ねましたtimidity。

答え1

 cat /run/systemd/generator.late/timidity.service
# Automatically generated by systemd-sysv-generator

[Unit]
SourcePath=/etc/init.d/timidity
Description=LSB: start and stop timidity
Before=runlevel2.target runlevel3.target runlevel4.target runlevel5.target shutdown.target
After=remote-fs.target
Conflicts=shutdown.target

[Service]
Type=forking
Restart=no
TimeoutSec=5min
IgnoreSIGPIPE=no
KillMode=process
GuessMainPID=no
RemainAfterExit=yes
SysVStartPriority=1
ExecStart=/etc/init.d/timidity start
ExecStop=/etc/init.d/timidity stop

systemd-unit は systemd によって動的に生成されます。起動を防ぐために、必要なchkconfigリンクを使用または削除できます。/etc/rc2.d/S01timiditychkconfig --del timidity

答え1

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