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SubjectRe: linux-next: Tree for July 7
On Wed, 7 Jul 2010 17:21:36 -0700
Andrew Morton <akpm@linux-foundation.org> wrote:

> (resend with viro cc)
>
> On Wed, 7 Jul 2010 16:55:39 +1000
> Stephen Rothwell <sfr@canb.auug.org.au> wrote:
>
> > I have created today's linux-next tree at
> > git://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git
> > (patches at http://www.kernel.org/pub/linux/kernel/v2.6/next/ ).
>
> I'm getting a vast stream of BUG()s from the
>
> BUG_ON(inode->i_state != (I_FREEING | I_CLEAR));
>
> in iput_final().
>
> After turning it into a WARN_ON():
>
> [ 49.780786] inode->i_state=0x67
> [ 49.780945] ------------[ cut here ]------------
> [ 49.781113] WARNING: at fs/inode.c:1246 iput+0x232/0x23f()
> [ 49.781279] Modules linked in: dm_mirror dm_region_hash dm_log dm_multipath dm_mod video output sbs sbshc battery ac lp parport sg ide_cd_mod cdrom option usb_wwan usbserial serio_raw floppy snd_hda_intel snd_hda_codec snd_seq_oss snd_seq_midi_event snd_seq button snd_seq_device snd_pcm_oss snd_mixer_oss snd_pcm snd_timer i2c_i801 i2c_core snd soundcore snd_page_alloc pcspkr shpchp ehci_hcd ohci_hcd uhci_hcd
> [ 49.783960] Pid: 2418, comm: mount Tainted: G W 2.6.35-rc4 #3
> [ 49.784127] Call Trace:
> [ 49.784288] [<ffffffff810cec31>] ? iput+0x1fe/0x23f
> [ 49.784454] [<ffffffff810cec65>] ? iput+0x232/0x23f
> [ 49.784623] [<ffffffff81036283>] warn_slowpath_common+0x7e/0x97
> [ 49.784790] [<ffffffff810362b1>] warn_slowpath_null+0x15/0x17
> [ 49.784958] [<ffffffff810cec65>] iput+0x232/0x23f
> [ 49.785134] [<ffffffff810c59a5>] do_unlinkat+0x104/0x15a
> [ 49.785301] [<ffffffff81002a1c>] ? sysret_check+0x27/0x62
> [ 49.785470] [<ffffffff8137518b>] ? trace_hardirqs_on_thunk+0x3a/0x3f
> [ 49.785639] [<ffffffff810c5a0c>] sys_unlink+0x11/0x13
> [ 49.785806] [<ffffffff810029eb>] system_call_fastpath+0x16/0x1b
> [ 49.785973] ---[ end trace 6458c1d95dac3fde ]---
>
> So I_DIRTY_SYNC, I_DIRTY_DATASYNC and I_DIRTY_PAGES are set.
>
> Config: http://userweb.kernel.org/~akpm/stuff/config-akpm2.txt

Bug is still there. Reverting ""Make ->drop_inode() just return
whether inode needs to be dropped" makes it go away.

Al, please don't just dump crap in linux-next and then ignore bug reports.
People are trying to get work done here.



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