On Fri, Mar 11, 2016 at 08:21:04AM +0000, Emmanuel Dreyfus wrote: > On Fri, Mar 11, 2016 at 07:37:01AM +0100, Timo Buhrmester wrote: > > It just completed one entire dump this way with no crash. > > That hadn't happened in 6 days. Hmmmmmm. > > My experience of the thing is that it is not reproductible. I > will backup fine for weeks and sometimes crash.
The problem seems to disappear when building the kernel wih -O1 or lower. I'm approaching a (statistically significant) streak of 16 complete runs of my backup script, whereas with a -O2 kernel it rarely takes more than one or two attempts to crash it.