Emmanuel Dreyfus: > On a busy mail server running NetBSD 7.1, I can reliabily reproduce > the following situation when using FFS snapshots: most processes get > stuck into tstile, load quickly raises to an unreasonable level, > nothing responds. I have not looked into the internals, but everything > behaves likes if all I/O were serialized.
Can you get kernel stack traces from the stuck processes using crash(8)? Does it unstick, or does it remain stuck forever? That is, what makes you conclude `everything behaves like if all I/O were serialized'?
