Markus Schiltknecht <markus@xxxxxxxxxx> writes:
>> Block 58591 ********************************************************
>> <Header> -----
>> Block Offset: 0x1c9be000 Offsets: Lower 12858 (0x323a)
>> Block: Size 28160 Version 73 Upper 14900 (0x3a34)
>> LSN: logid 627535472 recoff 0x3a693b22 Special 9506 (0x2522)
>> Items: 3209 Free Space: 2042
>> Length (including item array): 8192
>>
>> Error: Invalid header information.
Hm, looks suspiciously ASCII-like. If you examine the page as text,
is it recognizable? We've seen cases where, for instance, a page
of a system's mail spool had replaced a database page. It's hard to
be sure whether that sort of thing is a hardware error or an operating
system bug.
> What's the best cure? Can I just wipe out the block with something like:
> # dd if=/dev/zero of=base/296788/302602 seek=58591 bs=8192 count=1
Yeah, try that. I think the net effect will be that some wide (toasted)
values will be truncated.
regards, tom lane
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