waiting for s.axes and error 4 in milltask[8048000

Hello everyone ,
excuse my poor english.
I 'm newbie and thank you to anyone who is looking at my problem.
I have a machine running for about 1 year ( 5 days / week) with no problem. The version is the linuxcnc 2.6.0-pre.

This morning a break current (?) and linuxcnc can not restarts.

Test and control:
latency test : ok
simulation mode : ok
without appendices ( pyvcp , ladder , pwmgen , pio ) : similar error

Error
linuxcnc -d : waiting for s.axes
dmesg :
[21731.743961] milltask[15817]: segfault at 0 ip 08058736 sp bff075e4 error 4 in milltask[8048000+6f000]

Thank for your ideas.
Michel

If there was an electrical fault of some kind I would check for hardware damage
its possible either the 5I22 card or the PC was damaged somehow.

This may require swapping the PC or the 5I22 (the 5I22 looks OK from the dmesg listing)

My reasoning is that If nothing was changed in the software, its most likely a hardware problem

Hello,
Thank for your help.
Yes, it is possible. I have control hardware, it seems in order. There was "only" a general cut in the power supply ( home). The CNC is not the problem , only the victim !
Ok, I completely control hardware tomorrowl
Michel