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
| ||
|
Date: Mon, 14 Jan 2008 11:54:39 +0800 From: Fengguang Wu <wfg@...l.ustc.edu.cn> To: Joerg Platte <jplatte@...sa.net> Cc: Peter Zijlstra <peterz@...radead.org>, Ingo Molnar <mingo@...e.hu>, linux-kernel@...r.kernel.org, "linux-ext4@...r.kernel.org" <linux-ext4@...r.kernel.org> Subject: Re: regression: 100% io-wait with 2.6.24-rcX On Sun, Jan 13, 2008 at 07:59:33PM +0800, Fengguang Wu wrote: > On Sun, Jan 13, 2008 at 10:49:31AM +0100, Joerg Platte wrote: > > register_jprobe(ext2_writepage) = 0 > > register_jprobe(requeue_io) = 0 > > register_kprobe(submit_bio) = 0 > > requeue_io: > > inode 114019(sda7/.kde) count 2,2 size 0 pages 1 > > 0 2 0 U____ > > requeue_io: > > inode 114025(sda7/cache-ibm) count 2,1 size 0 pages 1 > > 0 2 0 U____ > > requeue_io: > > inode 114029(sda7/socket-ibm) count 2,3 size 0 pages 1 > > 0 2 0 U____ > > requeue_io: > > inode 114017(sda7/0266584877) count 3,6 size 0 pages 1 > > 0 2 0 U____ > > It helps. Thank you, Joerg! > > The .kde/cache-ibm/socket-ibm/0266584877 above are directories. > It's weird that dirs would have their own mappings in ext2. In Oh, ext2 dirs have their own mapping pages. Not the same with ext3. > particular this bug is triggered because the dir mapping page has > PAGECACHE_TAG_DIRTY set and PG_dirty cleared, staying in an > inconsistent state. Just found that a deleted dir will enter that inconsistent state when someone still have reference to it... -- 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/
Powered by blists - more mailing lists