[j-nsp] JUNOS: "UDMA ICRC error reading fsbn ..."

Paul Civati paul at xciv.org
Tue Feb 5 11:38:09 EST 2008


Samuel GAY <samuel.gay at c-s.fr> wrote:

> We have a M7i with these errors at the end of the boot:
> 
> ad0: 245MB <SanDisk SDCFJ-256> [980/16/32] at ata0-master PIO4
> *ad1: UDMA ICRC error reading fsbn 78140097 of 0-3 (ad1 bn   78140097; cn 77519 tn 15 sn 0) retrying
> ad1: UDMA ICRC error reading fsbn 78140097 of 0-3 (ad1 bn  78140097;  cn 77519 tn 15 sn 0) retrying
> ad1: UDMA ICRC error reading fsbn 78140097 of 0-3 (ad1 bn  78140097;  cn 77519 tn 15 sn 0) retrying
> ad1: UDMA ICRC error reading fsbn 78140097 of 0-3 (ad1 bn  78140097;  cn 77519 tn 15 sn 0) falling back to PIO mode
> *ad1: 38154MB <HTE541040G9AT00> [77520/16/63] at ata0-slave PIO4
> 
> Have you an idea of the meaning?
> Is it an hardware problem? A clean install can solve the problem?

fsbn = file system block number

I would suggest there is a media problem with your disk (ad1) and
you might want to look at replacing it.

-Paul-



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