This one time, at band camp, Andre Beck said: > Hi, > > I'm running freeradius from Sarge in almost the default configuration, > the only exception beeing GDBM mode for users file access. There are > some hundred users in the file and two Cisco NAS query the server. > > Every now and then, typically when a lot of queries come in at once > (e.g. after a network outage or when clearing all PPPoE sessions), > the daemon stops answering requests and starts to eat up all available > CPU cycles. It seems to hang purely in user mode, strace doesnt list > any further system calls. > > The only way to resolve the problem is manual SIGKILL and restart of > the daemon. > > I've searched the net a bit but seemingly this problem is not very > widespread. I assume it could be the use of the dbm backend, as today > mostly MySQL or LDAP backends seem to be in use. If it is of any help, > I'd try to run the daemon in file mode instead of dbm mode, but it's > hard to qualify if the bug has gone (as in normal operations here, it > happens approximately once every two months and triggering it would > require creating artifical network outages). > > Have there been any similar reports for the Sarge freeradius at all?
Unfortunately, no. I do follow the freeradius users and devel lists, and I haven't seen reports of it locking under load. You can try attaching gdb to it, and when it is in one ofthese conditions, get a backtrace out of it. There won't be any debug symbols, but we can at least see what function and what library it's stuck in. I rather suspect that you're right, and it will turn out to be somewhere in the dbm libraries, but I'm keeping an open mind at this point. If attaching gdb to it turns out to be unfeasible, I may ask you to try to reproduce it with the version in etch, if that's possible. Thanks for the report, -- ----------------------------------------------------------------- | ,''`. Stephen Gran | | : :' : [EMAIL PROTECTED] | | `. `' Debian user, admin, and developer | | `- http://www.debian.org | -----------------------------------------------------------------
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