zfsboot at 12.0: Shortening read at xxxx from 16 to -479991569

[Mark Martinec]

2018-12-13 16:59, Warner Losh wrote:

> Do you have any encrypted disks?

Indeed I do, both pools are encrypted.


(although I haven't seen such messages with 11.2, as far as I can tell)

   Mark



> On Thu, Dec 13, 2018, 6:19 AM Mark Martinec 
> <Mark.Martinec+freebsd at ijs.si
> wrote:
> 
>> On one of my hosts (now running 12.0-RELEASE) the zfsboot shows
>> this weird negative number, which sounds suspicious:
>> 
>>    Verifying DMI pool Data .............
>>    Shortening read at 3907029152 from 16 to 15
>>    Shortening read at 7435283708 from 16 to -479991569
>> 
>>    BTX loader 1.0  BTX version is 1.02
>>    Consoles: ...
>>    BIOS drive C: is disk0
>>    ...
>> 
>> The machine boots up normally and is fine, zpool scrub is happy,
>> so, should I worry? Anything fishy there?
>> 
>> Searching through sources, the message seems to come from
>> stand/i386/zfsboot/zfsboot.c :
>> 
>>    printf("Shortening read at %lld from %d to %lld\n",
>>      alignlba, alignnb, (zdsk->dsk.size + zdsk->dsk.start) - 
>> alignlba);