會出現這個訊息是在 RedHat9 用 Kernel 2.6 開機, 然後用 rpm -q 或 rpm -qa 做查詢動作.
此問題和 O_DIRECT 有關.
解決方法有兩個:
1. export LD_ASSUME_KERNEL=2.2.5 (Workaround)
2. upgrade RPM to rpm-4.2-1.i386.rpm (need reboot to work fine)
ref. Bugzilla Bug 92247: rpmdb: unable to join the environment - db4 error(11) from dbenv->open: Resource temporarily unavailable