Samba "Incurred fault #32" on ES40

From: Graham Allan (allan@physics.umn.edu)
Date: Tue May 03 2005 - 11:39:39 EDT


We've had Samba 3.0.x running for about a year now on our ES40, Tru64
5.1B PK4. Suddenly yesterday it went badly wrong, for no apparent
reason - all smbd processes become cpu-bound, though they function
(slowly). Load average on the server heads up towards 200 or so unless
we kill samba. We tried a bunch of things ranging from tweaking the
samba config (which has worked for a long time unchanged), updating
samba from 3.0.11 to 3.0.14a, to restarting the system. No change.

Attaching to a cpu-bound smbd with truss shows rapid repeated
occurances of:

Incurred fault #32, FLTBOUNDS %pc = 0x000003FF801D40BC
addr = 0x000000011FFF8C40

the memory addresses stay contant across processes and samba restarts.

This is perhaps more samba related than Tru64, but while we continue to
look for a cause, I thought I'd throw this out to the list, to see if
anyone has any ideas about interpreting it...

Graham

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Graham Allan
School of Physics and Astronomy - University of Minnesota
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