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Open Source and information security mailing list archives
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Date: Thu, 24 Jul 2014 19:03:05 +0800 From: "xinhui.pan" <xinhuix.pan@...el.com> To: One Thousand Gnomes <gnomes@...rguk.ukuu.org.uk> CC: Peter Hurley <peter@...leysoftware.com>, Greg KH <gregkh@...uxfoundation.org>, mnipxh <mnipxh@...il.com>, jslaby@...e.cz, linux-kernel@...r.kernel.org, yanmin_zhang@...ux.intel.com Subject: Re: [PATCH] tty/tty_io.c: make a check before reuse cdev 于 2014年07月24日 00:07, One Thousand Gnomes 写道: >> Very nice solution. We will check if this can cause any risk, both to kernel and user space. >> Using a new tty base to register with new cdevs may give us more chance to wait PROCESS quit/close. >> when total 256 tty used up, what we should do is still in discuss. > > At that point you may want to look at how fuser works and create some > kind of policy manager needs to kill problem tasks owning a device. > > Or in theory there is no reason nowdays we can't go above 256 devices - > in theory 8) > hi, Alan Thanks for your nice comments. In theory it can go over 256 devices, In fact, it will waste more memories. :) We really need a policy manager that works well. FT guys may offer it one day. it's a little long time maybe. :( When I was a student, I heard you left from kernel. Welcome back to kernel, I didn't know that you are back. So sorry. thanks, xinhui > Alan > > -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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