Segfault in 2.1.10 backports version advice

Matthew Newton mcn4 at
Mon Jan 23 17:07:27 CET 2012


On Mon, Jan 23, 2012 at 02:13:55PM +0100, Arnaud Loonstra wrote:
> Jan 23 13:29:17 LX800476 kernel: [1366692.780725] freeradius[23459]:
> segfault at 8 ip b7461326 sp b5105988 error 4 in
> Running a backports verison of freeradius on Debian Lenny:
> 2.1.10+dfsg-2~bpo50+1, 2.6.26-2-686 on Vmware ESX cluster.
> I cannot reproduce it on a test server and it only happens in
> production. Probably a load thing...?

Had similar segfaults here on 2.1.10. Was very quick to debug -
enabled core dumps, and waited for it to crash. Then started up
gdb on the corefile and looked at the backtrace.

For me, it was a feof bug in the detail listener
(copy-acct-to-home-server) - so if you're using that, then you may
have hit the same. Fixed in 2.1.11.

The backtrace is what you really need to debug it.

Upgrade first, though. Compiling the latest from git (or 2.1.12)
is trivial as all the Debian stuff is there to build your package
for you :-).


Matthew Newton, Ph.D. <mcn4 at>

Systems Architect (UNIX and Networks), Network Services,
I.T. Services, University of Leicester, Leicester LE1 7RH, United Kingdom

For IT help contact helpdesk extn. 2253, <ithelp at>

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