From: Valdis.Kletnieks@vt.edu
To: Vladimir Davydov <vdavydov@parallels.com>
Cc: LKML <linux-kernel@vger.kernel.org>, Jan Kara <jack@suse.cz>,
Wu Fengguang <fengguang.wu@intel.com>,
Andrew Morton <akpm@linux-foundation.org>
Subject: Re: Unkillable R-state process stuck in sendfile
Date: Tue, 18 Feb 2014 14:13:47 -0500 [thread overview]
Message-ID: <59184.1392750827@turing-police.cc.vt.edu> (raw)
In-Reply-To: Your message of "Mon, 17 Feb 2014 16:51:37 +0400." <530205D9.1010908@parallels.com>
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On Mon, 17 Feb 2014 16:51:37 +0400, Vladimir Davydov said:
> out_fd = eventfd(0, 0);
> if (out_fd < 0)
> err(1, "eventfd");
> ret = sendfile64(out_fd, in_fd, NULL, SIZE);
> I'm not sure if this is actually bad and should be fixed, but perhaps
> it's worth making do_generic_file_read() check for fatal signals pending
> and break the read loop if so?
Why do we even allow an eventfd to be fed to sendfile64 at all? What
does that even *mean*?
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next prev parent reply other threads:[~2014-02-18 19:15 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-02-17 12:51 Vladimir Davydov
2014-02-18 19:13 ` Valdis.Kletnieks [this message]
2014-02-19 6:38 ` Vladimir Davydov
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