Hanging when trying to 'rm' files off a read-only NFS export?
kpielorz_lst at tdx.co.uk
Thu Jul 16 11:07:10 UTC 2009
--On 16 July 2009 13:49 +0000 stopeme <stopeme at gmail.com> wrote:
>> The reason for the shutdown hang is that '/etc/rc.d/random' rm's the
>> '/entropy' file if it exists as the system shuts down, and that rm
>> never returns (the error output is redirected so you never see the
>> errors) :(
> grep entropy | /etc/defaults/rc.conf
> entropy_file="/entropy" # Set to NO to disable caching entropy through
> # /var/db/entropy-file is preferred if / is not avail.
> entropy_dir="/var/db/entropy" # Set to NO to disable caching entropy via
> entropy_save_sz="2048" # Size of the entropy cache files.
> entropy_save_num="8" # Number of entropy cache files to save.
> move entropy file to rw fs - like /var or somewhere else
Already done that as a 'workaround' - but the underlying problem is that rm
hangs... Surely it shouldn't hang?
Also the actual '/etc/rc.d/random' appears to have code designed to work
around read-only root file systems, but that doesn't work in this case - it
doesn't avoid the hang.
Touch doesn't hang, cp's don't hang, file redirection (e.g. 'echo "hello"
>test') doesn't hang - infact everything I can think of doing write wise
doesn't hang, except for rm?
The rm hangs for ever (left it for hours). If any other software, scripts,
or anything on there attempts a similar operation - it'll lock up that
process for eternity, that can't be right?
More information about the freebsd-questions