linux-kernel - Re: ext4 deep stack with mark_page

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20110314224645.GA20348@infradead.org>
Date:	Mon, 14 Mar 2011 18:46:45 -0400
From:	Christoph Hellwig <hch@...radead.org>
To:	Hugh Dickins <hughd@...gle.com>
Cc:	Theodore Ts'o <tytso@....edu>, linux-ext4@...r.kernel.org,
	linux-kernel@...r.kernel.org, linux-mm@...ck.org
Subject: Re: ext4 deep stack with mark_page_dirty reclaim

Direct reclaim (in the cgroup variant) at it's work.  We had a couple of
flamewars on this before, but this trivial example with reclaim from
the most simple case (swap space) shows that we really should never
reclaim from memory allocation callers for stack usage reasons.

--
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/