DragonFly bugs List (threaded) for 2010-09
Re: Bugs while using encrypted HAMMER root fs
:* Matthias Schmidt wrote:
:> I installed a recent master (184.108.40.2065.g4cdde1) on my old IBM Thinkpad
:> T42 and I installed the system on an encrypted HAMMER root volume.
:> While installing packages and using X I made some observations:
:> - After a crash, the "loader" in the initial ramdisk is no longer able
:> to load the real init. It displays all HAMMER related messages about
:> an unclean file system and stops right after "recovery complete". I
:> can move the cursor and panic the system, but nothing else happens.
:> Rebooting the live CD and mounting the partition fixes the problem.
:I can reproduce it. Every time I run "hammer cleanup" the system
How much memory does this system have? The problem is almost
certainly buffer cache / memory-exhaustion. The crypto layer
uses memory heavily. We need a kernel panic / kernel core
when it gets stuck to verify that is the issue. Swap cannot
be encrypted if you want the kernel core to have a chance of
succeeding in this situation.
Both hammer cleanup and crypto are heavy kernel memory users.