From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jens Axboe Subject: Re: 2.6.20-rc4-mm1 Date: Mon, 15 Jan 2007 09:05:15 +1100 Message-ID: <20070114220515.GG5860@kernel.dk> References: <20070111222627.66bb75ab.akpm@osdl.org> <1168768104.2941.53.camel@localhost.localdomain> <1168771617.2941.59.camel@localhost.localdomain> <1168785616.2941.67.camel@localhost.localdomain> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline In-Reply-To: <1168785616.2941.67.camel@localhost.localdomain> Sender: linux-kernel-owner@vger.kernel.org To: Thomas Gleixner Cc: Andrew Morton , linux-kernel@vger.kernel.org, jgarzik@pobox.com, linux-ide@vger.kernel.org List-Id: linux-ide@vger.kernel.org On Sun, Jan 14 2007, Thomas Gleixner wrote: > On Sun, 2007-01-14 at 11:46 +0100, Thomas Gleixner wrote: > > > Boot proceeds, but gets stuck hard at: > > > "Remounting root filesystem in read-write mode:" > > > > > > No SysRq-T, nothing. > > > > > > The above BUG seems unrelated to that. Investigating further. > > > > Bisect identified: git-block.patch > > Does only happen on 2 systems. Both have sata + raid1 setup. I managed > to get a stacktrace from the SMP box. Sits there and sleeps forever. > > tglx > > [] io_schedule+0x7a/0x9a > [] sleep_on_page+0x8/0xc > [] __wait_on_bit+0x36/0x5d > [] wait_on_page_bit+0x5b/0x61 > [] wait_on_page_writeback_range+0x4f/0xef > [] filemap_fdatawait+0x44/0x49 > [] filemap_write_and_wait+0x22/0x2d > [] sync_blockdev+0x17/0x1d > [] quota_sync_sb+0x33/0xd6 > [] sync_dquots+0x22/0xfa > [] __fsync_super+0x17/0x66 > [] fsync_super+0xb/0x19 > [] do_remount_sb+0x49/0x101 > [] do_mount+0x1ad/0x678 > [] sys_mount+0x6f/0xa4 > [] sysenter_past_esp+0x5f/0x99 raid seems to have severe problems with the plugging change. I'll try and find Neil and have a chat with him, hopefully we can work it out. -- Jens Axboe