zfs problems after rebuilding system [SOLVED]

Eugene Grosbein eugen at grosbein.net
Mon Mar 5 12:20:47 UTC 2018


05.03.2018 19:10, Dimitry Andric wrote:

>> When no boot drive is detected early enough, the kernel goes to the
>> mountroot prompt.  That seems to hold a Giant lock which inhibits
>> further progress being made.  Sometimes progress can be made by trying
>> to mount unmountable partitions on other drives, but this usually goes
>> too fast, especially if the USB drive often times out.
> 
> What I would like to know, is why our USB stack has such timeout issues
> at all.  When I boot Linux on the same type of hardware, I never see USB
> timeouts.  They must be doing something right, or maybe they just don't
> bother checking some status bits that we are very strict about?

This is heavily hardware-dependent. You may have no issues with some
software+hardware combination and long timeouts with same software
but different hardware.



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