* [bug] oops in linux-3.8-rc2
@ 2013-01-07 0:51 Tom Gundersen
2013-01-07 11:10 ` David Sterba
0 siblings, 1 reply; 4+ messages in thread
From: Tom Gundersen @ 2013-01-07 0:51 UTC (permalink / raw)
To: linux-btrfs
Hi guys,
I ran into a bug today with 3.8-rc2 [0], following an "make
modules_install && make install" of the kernel.
I have been using the same kernel without problems for some days, the
only change immediately before the oops was that I switched from plain
partitions to using multi-device and subvolumes.
Is there any more info I could give?
Cheers,
Tom
[0]: <https://plus.google.com/114015603831160344127/posts/fzEYnF64NkZ>
(I'm sorry about the quality of the picture, hopefully it is still
useful).
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [bug] oops in linux-3.8-rc2
2013-01-07 0:51 [bug] oops in linux-3.8-rc2 Tom Gundersen
@ 2013-01-07 11:10 ` David Sterba
2013-01-07 13:00 ` Chris Mason
0 siblings, 1 reply; 4+ messages in thread
From: David Sterba @ 2013-01-07 11:10 UTC (permalink / raw)
To: Tom Gundersen; +Cc: linux-btrfs
Hi,
On Mon, Jan 07, 2013 at 01:51:21AM +0100, Tom Gundersen wrote:
> I ran into a bug today with 3.8-rc2 [0], following an "make
> modules_install && make install" of the kernel.
>
> I have been using the same kernel without problems for some days, the
> only change immediately before the oops was that I switched from plain
> partitions to using multi-device and subvolumes.
>
> [0]: <https://plus.google.com/114015603831160344127/posts/fzEYnF64NkZ>
BUG at mm/page-writeback.c:2164
2160 int clear_page_dirty_for_io(struct page *page)
2161 {
2162 struct address_space *mapping = page_mapping(page);
2163
2164 BUG_ON(!PageLocked(page));
btrfs on the stack is only __btrfs_buffered_write +
btrfs_file_aio_write, ie. just a buffered write, originating from
pwrite64.
The bug_on condition is clear, the question is why the page is not
locked.
david
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [bug] oops in linux-3.8-rc2
2013-01-07 11:10 ` David Sterba
@ 2013-01-07 13:00 ` Chris Mason
2013-01-07 16:27 ` Tom Gundersen
0 siblings, 1 reply; 4+ messages in thread
From: Chris Mason @ 2013-01-07 13:00 UTC (permalink / raw)
To: David Sterba; +Cc: Tom Gundersen, linux-btrfs
On Mon, Jan 07, 2013 at 04:10:37AM -0700, David Sterba wrote:
> Hi,
>
> On Mon, Jan 07, 2013 at 01:51:21AM +0100, Tom Gundersen wrote:
> > I ran into a bug today with 3.8-rc2 [0], following an "make
> > modules_install && make install" of the kernel.
> >
> > I have been using the same kernel without problems for some days, the
> > only change immediately before the oops was that I switched from plain
> > partitions to using multi-device and subvolumes.
> >
> > [0]: <https://plus.google.com/114015603831160344127/posts/fzEYnF64NkZ>
>
> BUG at mm/page-writeback.c:2164
>
> 2160 int clear_page_dirty_for_io(struct page *page)
> 2161 {
> 2162 struct address_space *mapping = page_mapping(page);
> 2163
> 2164 BUG_ON(!PageLocked(page));
>
> btrfs on the stack is only __btrfs_buffered_write +
> btrfs_file_aio_write, ie. just a buffered write, originating from
> pwrite64.
>
> The bug_on condition is clear, the question is why the page is not
> locked.
The big question is, can you make it happen again?
-chris
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [bug] oops in linux-3.8-rc2
2013-01-07 13:00 ` Chris Mason
@ 2013-01-07 16:27 ` Tom Gundersen
0 siblings, 0 replies; 4+ messages in thread
From: Tom Gundersen @ 2013-01-07 16:27 UTC (permalink / raw)
To: Chris Mason, David Sterba, Tom Gundersen, linux-btrfs
On Mon, Jan 7, 2013 at 2:00 PM, Chris Mason <chris.mason@fusionio.com> wrote:
> The big question is, can you make it happen again?
I wish I could, but I don't want to ;-) At least not on this machine
(it is, very foolishly, my work machine).
I'll try to reproduce it in a VM and let you know if/when I manage.
Cheers,
Tom
^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2013-01-07 16:27 UTC | newest]
Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed)
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2013-01-07 0:51 [bug] oops in linux-3.8-rc2 Tom Gundersen
2013-01-07 11:10 ` David Sterba
2013-01-07 13:00 ` Chris Mason
2013-01-07 16:27 ` Tom Gundersen
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