From: Clemens Ladisch <clemens@ladisch.de>
To: Gene Heskett <gheskett@wdtv.com>, linux-kernel@vger.kernel.org
Subject: Re: reboot housekeeping, lack thereof, is messing with me
Date: Mon, 13 Oct 2014 08:55:33 +0200 [thread overview]
Message-ID: <543B7765.6050004@ladisch.de> (raw)
In-Reply-To: <201410121321.26582.gheskett@wdtv.com>
Gene Heskett wrote:
> To whomever is in charge of the supposedly volatile LCK.. files in
> /var/lock:
Whoever that may be, it's not the kernel.
> Its my understanding that these files should be volatile when they
> represent a USB usage, because a USB device can be unplugged instantly and
> at any time. The device nicely and dutifully disappears from an 'ls /dev'
> listing when a device is unplugged.
>
> Why is it then that the /var/lock/LCK..ttyUSB1 file is always left behind,
> so it screws up any possibility of doing a nice clean reboot and restart
> of the program that uses it?
What program leaves this file behind? (The pid in there is no longer
helpful, unless it got logged due to a segfault, but what was the last
program used for serial stuff?)
Anyway, it appears some programs automatically delete this file when the
pid is not valid.
Regards,
Clemens
prev parent reply other threads:[~2014-10-13 6:55 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-10-12 17:21 reboot housekeeping, lack thereof, is messing with me Gene Heskett
2014-10-13 6:55 ` Clemens Ladisch [this message]
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