On 11/15/2010 05:21 PM, Eric Sandeen wrote: > On 11/12/10 5:26 PM, Bernd Schubert wrote: >> The real issue we want to debug with the patch below actually came up while >> stress testing Lustre using the RHEL5.5 kernel (so 2.6.32'ish ext4), but a >> more verbose error function should not hurt for vanilla ext4 either. >> >> make ext4_valid_block_bitmap() more verbose >> >> While running our stress test suite, ext4_valid_block_bitmap() >> frequently complains about an invalid block bitmap. >> However, e2fsck does not find anything. So in oder to be able >> to better debug this issue, make the function more verbose and >> let it complain about the two possible invalid bitmaps. > > Making a raw e2image of the problematic filesystem would let us take a > look at why e2fsck isn't finding problems; unless you plan to fix that > yourself as well, which is just fine of course. :) > I already captured an e2image and will do again on Wednesday, now that I could reproduce it again with the updated code. Unfortunately no time before. Will try to check out myself with debugfs first, if there is really something wrong. It might be a race in the code as well... Cheers, Bernd
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