linux-kernel - Re: linux-next: Tree for August 13

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Message-ID: <s5hzlnf6hqz.wl%tiwai@suse.de>
Date:	Thu, 14 Aug 2008 11:57:56 +0200
From:	Takashi Iwai <tiwai@...e.de>
To:	Alan Cox <alan@...rguk.ukuu.org.uk>
Cc:	Stephen Rothwell <sfr@...b.auug.org.au>,
	linux-next@...r.kernel.org, LKML <linux-kernel@...r.kernel.org>
Subject: Re: linux-next: Tree for August 13

At Wed, 13 Aug 2008 16:40:37 +0200,
I wrote:
> 
> At Wed, 13 Aug 2008 15:37:15 +0200,
> I wrote:
> > 
> > At Wed, 13 Aug 2008 14:08:11 +0100,
> > Alan Cox wrote:
> > > 
> > > > When re-starting X, it complains that it cannot change to VT7.
> > > > Via strace, 
> > > 
> > > Does this fix it
> > > 
> > > @@ -838,6 +839,7 @@ static int copy_signal(unsigned long clone_flags, struct task_struct *tsk)
> > >  void __cleanup_signal(struct signal_struct *sig)
> > >  {
> > >  	exit_thread_group_keys(sig);
> > > +	tty_kref_put(sig->tty);
> > >  	kmem_cache_free(signal_cachep, sig);
> > >  }
> > 
> > Thanks, will give it a try.
> > 
> > The above can't be applied as is to next tree, so the following is
> > applied instead.
> 
> It oopsed with udevd at the early boot stage...
> 
> BUG: unable to handle kernel paging request at 4455003d
> IP: [<c01e9b69>] kref_put+0x29/0x44
> *pde = 00000000 
> Oops: 0002 [#1] SMP 
> last sysfs file: /sys/devices/pci0000:00/0000:00:1f.2/host0/target0:0:0/0:0:0:0/timeout
> Modules linked in: sd_mod crc_t10dif uhci_hcd ehci_hcd usbcore edd ext3 mbcache jbd fan ata_piix libata scsi_mod dock thermal processor
> 
> Pid: 638, comm: udevd Not tainted (2.6.27-rc3-next-20080813-next #1)
> EIP: 0060:[<c01e9b69>] EFLAGS: 00010202 CPU: 1
> EIP is at kref_put+0x29/0x44
> EAX: 4455003d EBX: 4455003d ECX: c2005b8c EDX: 00000040
> ESI: c023b9ed EDI: fffffdff EBP: f6adff08 ESP: f6adff00
>  DS: 007b ES: 007b FS: 00d8 GS: 0033 SS: 0068
> Process udevd (pid: 638, ti=f6ade000 task=f6ac8000 task.ti=f6ade000)
> Stack: f6a3a200 f6abeec0 f6adff10 c023c2dc f6adff1c c0123d30 f6abec90 f6adff58 
>        c01252cf f6a3a200 00000082 f6adffb8 bfcc26a8 01200011 00000000 f6abee80 
>        f6ac8000 f6abe080 00000000 f6adffb8 bfcc26a8 00000000 f6adff98 c012546f 
> Call Trace:
>  [<c023c2dc>] ? tty_kref_put+0x14/0x16
>  [<c0123d30>] ? __cleanup_signal+0x11/0x20
>  [<c01252cf>] ? copy_process+0xde7/0xec6
>  [<c012546f>] ? do_fork+0xc1/0x1ff
>  [<c0102447>] ? sys_clone+0x25/0x2a
>  [<c010399b>] ? sysenter_do_call+0x12/0x2f
>  =======================
> Code: 5d c3 55 89 e5 56 89 d6 85 f6 ba 40 00 00 00 53 89 c3 74 0d 81 fe 63 cd 17 c0 75 0f ba 41 00 00 00 b8 aa 18 3c c0 e8 36 bf f3 ff <f0> ff 0b 0f 94 c0 31 d2 84 c0 74 09 89 d8 ff d6 ba 01 00 00 00 
> EIP: [<c01e9b69>] kref_put+0x29/0x44 SS:ESP 0068:f6adff00
> ---[ end trace 2b6d2df1e77a968c ]---

Today's tree works fine.  Thanks!


Takashi
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