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Date: Sun, 4 Sep 2011 22:25:40 +0800 From: Lin Ming <mlin@...pku.edu.cn> To: Alan Stern <stern@...land.harvard.edu> Cc: Dave Young <hidave.darkstar@...il.com>, Linux Kernel Mailing List <linux-kernel@...r.kernel.org>, Andrew Morton <akpm@...ux-foundation.org>, fengguang.wu@...el.com, linux-usb@...r.kernel.org Subject: Re: [BUG] D state process after unplug and umount usb disk On Sun, Sep 4, 2011 at 9:49 PM, Alan Stern <stern@...land.harvard.edu> wrote: > >> Where does this exit signal come from? >> Does USB interrupt handler will send kill signal to all processes >> accessing it when it's unplugged(by hand)? > > The USB stack does not send any signals at all unless a process > specifically asks for them. How to ask? I have not checked, but think umount code path will not send signal to process. Curiously, where does the exit signal come from? Dave, Did you press "Ctrl + C" on cat? Lin Ming -- 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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