Re: 1352 NUL bytes at the end of a page? (was Re: Assertion `s && s->tree' failed: The saga continues.)

Larry McVoy
2004-05-17T14:14:36Z

On Sun, May 16, 2004 at 10:17:58PM -0700, Linus Torvalds wrote:
> > Found null start 0x1550b01 end 0x1551000 len 0x4ff line 535587
> > Found null start 0x2030b01 end 0x2031000 len 0x4ff line 639039
> > Found null start 0x2330b01 end 0x2331000 len 0x4ff line 663611
>
> The fact that it's always zeroes, and it's an strange number but it always
> ends up being page-aligned at the _end_ makes me strongly suspect that we
> have one of the "don't write back data past i_size" things wrong.

Isn't it weird that it is starting at 0xb01 and has the same length at
three different offsets? That's a definite pattern and might be a clue.
And note that the weird starting offset plus the length is a page size.
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Larry McVoy lm at bitmover.com http://www.bitkeeper.com