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SubjectRe: [CRASH] gdth / __block_prepare_write: zeroing uptodate buffer! / NMI Watchdog detected LOCKUP
Florian Lohoff wrote:
> On Tue, Feb 26, 2002 at 11:04:55AM -0800, Andrew Morton wrote:
> > > __block_prepare_write: zeroing uptodate buffer!
> >
> > Yup. This happens when the disk fills up. Andrea and I were
> > discussing it over the weekend. There's a new patch in the -aa
> > kernels which doesn't quite fix it :(
> >
> > We'll fix it in 2.4.19-pre somehow. It's possible that this problem
> > causes a chnuk of zeroes to be written into the file when you hit
> > ENOSPC, which is rather rude. But your file was truncated anyway.
> I dont think the machine had full filesystems at all.

I/O error when reading filesystem metadata would also cause it.
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