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SubjectRe: ext2 FS corruption with 2.5.59.
Hello!

On Sat, Jan 25, 2003 at 03:13:01PM -0800, Andrew Morton wrote:
> > Also I think that taking BKL just to update some inode accounting stuff is kind of expensive,
> > so certainly better solution must exist.
> However, in reviewing it, I don't see exactly what's going on. Because only
> one process is accessing the stat information of the fsx inode anyway?

Well, I came to conclusion that we have fsx doing truncate racing
with fsstress doing sync->iput->ext2_discard_prealloc()

> Yes, we need to rub out that i_bytes/i_blocks thing, replace it with an
> atomically updated loff_t, etc. But I'd like to understand what the exact
> failure is first. It _seems_ that stat has somehow seen a >4G value of
> stat->size, but how can this happen???

It's just become negative as we discarding prealloc twice.

Bye,
Oleg
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