Re: [RFC][PATCH] set_page_buffer_dirty should skip unmapped buffers

Andrew Morton wrote:

On Fri, 01 Sep 2006 09:32:22 -0700
Badari Pulavarty <[email protected]> wrote:

Kernel BUG at fs/buffer.c:2791
invalid opcode: 0000 [1] SMP

Its complaining about BUG_ON(!buffer_mapped(bh)).

I need to have a little think about this, remember what _should_ be
happening in this situation.

We (mainly I) used to do a huge amount of fsx-linux testing on 1k blocksize
filesystems.  We've done something to make this start happening.  Part of
resolving this bug will be working out what that was.

Here is the progress in tracking this down so far.

I am able to reproduce the problem on following kernel versions.

2.6.18-rc5
2.6.18-rc4
2.6.17.11
2.6.16.28
2.6.15.7
2.6.14.7

I am yet to find a latest kernel version - where this works :(
I am going to try older versions of the kernel.

Thanks,
Badari


--
VGER BF report: H 3.60822e-15
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• References:
  • [RFC][PATCH] set_page_buffer_dirty should skip unmapped buffers
    • From: Badari Pulavarty <[email protected]>
  • Re: [RFC][PATCH] set_page_buffer_dirty should skip unmapped buffers
    • From: Anton Altaparmakov <[email protected]>
  • Re: [RFC][PATCH] set_page_buffer_dirty should skip unmapped buffers
    • From: Badari Pulavarty <[email protected]>
  • Re: [RFC][PATCH] set_page_buffer_dirty should skip unmapped buffers
    • From: Andrew Morton <[email protected]>

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