On Saturday 18 March 2006 21:54, Andrew Morton wrote:
> "Rafael J. Wysocki" <[email protected]> wrote:
> >
> > On Saturday 18 March 2006 13:40, Andrew Morton wrote:
> > >
> > > ftp://ftp.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.16-rc6/2.6.16-rc6-mm2/
> >
> > I get the following oops from it 100% of the time (on boot):
> >
> > Trying to free ramdisk memory ... ----------- [cut here ] --------- [please bite here ] ---------
> > Kernel BUG at fs/buffer.c:1629
> > invalid opcode: 0000 [1] PREEMPT
> > last sysfs file: /block/hdc/range
> > CPU 0
> > Modules linked in:
> > Pid: 1, comm: swapper Not tainted 2.6.16-rc6-mm2 #16
> > RIP: 0010:[<ffffffff80280d9a>] <ffffffff80280d9a>{block_invalidatepage+202}
> > RSP: 0000:ffff81005ff07ac8 EFLAGS: 00010246
> > RAX: 0000000000000000 RBX: ffff810037c09138 RCX: ffff810037c09228
> > RDX: 0000000000000000 RSI: ffff81005ff07a88 RDI: 0000000000000000
> > RBP: ffff81005ff07af8 R08: 0000000000000002 R09: ffff81005ff07a99
> > R10: ffff810037c09138 R11: 0000000000000010 R12: ffff810037c09138
> > R13: 0000000000001000 R14: ffff810037c09138 R15: ffff810001c34e28
> > FS: 0000000000000000(0000) GS:ffffffff80690000(0000) knlGS:0000000000000000
> > CS: 0010 DS: 0018 ES: 0018 CR0: 000000008005003b
> > CR2: 00002afbe89a3000 CR3: 000000005fe36000 CR4: 00000000000006e0
> > Process swapper (pid: 1, threadinfo ffff81005ff06000, task ffff81005ff05530)
> > Stack: 0000000000000000 ffff810001c34e28 0000000000000002 0000000000000001
> > ffff810037df47e0 ffffffffffffffff ffff81005ff07b08 ffffffff8027f7b3
> > ffff81005ff07b28 ffffffff802610d5
> > Call Trace: <ffffffff8027f7b3>{do_invalidatepage+35}
> > <ffffffff802610d5>{truncate_complete_page+37} <ffffffff8026154f>{truncate_inode_pages_range+207}
> > <ffffffff802617c0>{truncate_inode_pages+16} <ffffffff803bac96>{rd_ioctl+86}
>
> Yeah, ramdisk does strange things.
>
> That's two. I guess I need to see if Neil left any other little timebombs
> in there for us ;)
>
> --- devel/fs/buffer.c~make-address_space_operations-invalidatepage-return-void-fix 2006-03-18 12:52:37.000000000 -0800
> +++ devel-akpm/fs/buffer.c 2006-03-18 12:53:04.000000000 -0800
> @@ -1624,10 +1624,8 @@ void block_invalidatepage(struct page *p
> * The get_block cached value has been unconditionally invalidated,
> * so real IO is not possible anymore.
> */
> - if (offset == 0) {
> - int ret = try_to_release_page(page, 0);
> - BUG_ON(!ret);
> - }
> + if (offset == 0)
> + try_to_release_page(page, 0);
> out:
> return;
> }
> _
That helps, thanks.
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