Hi, we have happily been running postgresql 7.4.x (currently 7.4.12) on a debian linux with kernel 2.4.x for some years without any issues. Yesterday after switching to 2.6.16 we experienced the following problem upon pgsql startup: LOG: could not open file "/var/lib/pgsql/data/pg_xlog/0000006900000091" (log file 1 05, segment 145): No such file or directory LOG: invalid primary checkpoint record LOG: could not open file "/var/lib/pgsql/data/pg_xlog/0000006900000091" (log file 1 05, segment 145): No such file or directory LOG: invalid secondary checkpoint record PANIC: could not locate a valid checkpoint record LOG: startup process (PID 414) was terminated by signal 6 LOG: aborting startup due to startup process failure After reverting back to kernel 2.4, postgresql started up hapilly again. Any ideas? -- -Achilleus