My problem is somewhat similar to:
http://boinc.berkeley.edu/dev/forum_thread.php?id=7687

but Seti appears to be working ok. However I have two computation errors in Milkyway. Not all are resulting in errors.

Grepping around in /var/lib/boinc-client, I find lots of 'error' hits, but none that also match 'computation'.

Any ideas what might be going on here? How do I dig deeper into the two that failed?

Here's the first few lines of stdoutdae.txt:

03-Jul-2012 07:29:37 [---] Starting BOINC client version 7.0.28 for x86_64-pc-linux-gnu
03-Jul-2012 07:29:37 [---] log flags: file_xfer, sched_ops, task
03-Jul-2012 07:29:37 [---] Libraries: libcurl/7.22.0 OpenSSL/1.0.1 zlib/1.2.3.4 libidn/1.23 librtmp/2.3
03-Jul-2012 07:29:37 [---] Data directory: /var/lib/boinc-client
03-Jul-2012 07:29:37 [---] Processor: 8 GenuineIntel Intel(R) Core(TM) i7 CPU       Q 720  @ 1.60GHz [Family 6 Model 30 Stepping 5]
03-Jul-2012 07:29:37 [---] Processor: 6.00 MB cache
03-Jul-2012 07:29:37 [---] Processor features: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts a
cpi mmx fxsr sse sse2 ss ht tm pbe syscall nx rdtscp lm constant_tsc arch_perfmon pebs bts rep_good nopl xtopology nonstop_tsc aperf
mperf pni dtes64 monitor ds_cpl vmx smx est tm2 ssse3 cx16 xtpr pdcm sse4_1 sse4_2 popcnt lahf_lm ida dts tpr_shadow vnmi flexpriori
ty ept vpid
03-Jul-2012 07:29:37 [---] OS: Linux: 3.2.0-26-generic
03-Jul-2012 07:29:37 [---] Memory: 3.80 GB physical, 0 bytes virtual
03-Jul-2012 07:29:37 [---] Disk: 22.11 GB total, 14.45 GB free
03-Jul-2012 07:29:37 [---] Local time is UTC -4 hours
03-Jul-2012 07:29:37 [---] VirtualBox version: 4.1.12_Ubuntur77245
03-Jul-2012 07:29:37 [---] NVIDIA GPU 0: Quadro FX 880M (driver version unknown, CUDA version 4.20, compute capability 1.2, 13421465
6MB, 134214632MB available, 174 GFLOPS peak)
03-Jul-2012 07:29:37 [---] OpenCL: NVIDIA GPU 0: Quadro FX 880M (driver version 295.40, device version OpenCL 1.0 CUDA, 1024MB, 1342
14632MB available)
03-Jul-2012 07:29:37 [---] Config: GUI RPC allowed from:
03-Jul-2012 07:29:37 [Milkyway@Home] URL http://milkyway.cs.rpi.edu/milkyway/; Computer ID 452833; resource share 200
03-Jul-2012 07:29:37 [SETI@home] URL http://setiathome.berkeley.edu/; Computer ID 6705621; resource share 200
03-Jul-2012 07:29:37 [Einstein@Home] URL http://einstein.phys.uwm.edu/; Computer ID 5450788; resource share 100
03-Jul-2012 07:29:37 [World Community Grid] URL http://www.worldcommunitygrid.org/; Computer ID 2066575; resource share 100
03-Jul-2012 07:29:37 [World Community Grid] General prefs: from World Community Grid (last modified 31-Dec-1969 19:00:01)
03-Jul-2012 07:29:37 [World Community Grid] Host location: none
03-Jul-2012 07:29:37 [World Community Grid] General prefs: using your defaults
03-Jul-2012 07:29:37 [---] Preferences:
03-Jul-2012 07:29:37 [---]    max memory usage when active: 1943.13MB
03-Jul-2012 07:29:37 [---]    max memory usage when idle: 2914.69MB
03-Jul-2012 07:29:37 [---]    max disk usage: 10.00GB
03-Jul-2012 07:29:37 [---]    don't use GPU while active
03-Jul-2012 07:29:37 [---]    suspend work if non-BOINC CPU load exceeds 50 %
03-Jul-2012 07:29:37 [---]    (to change preferences, visit the web site of an attached project, or select Preferences in the Manage

For errors, post your problem on the project's forums. It's their application that you're running, so it's their errors. BOINC doesn't do anything but manage the applications and work queue, it has no active crunching role, so any work related errors you come across are caused by the project's science application(s), so you have to ask that project about them.

Yes, BOINC can also throw errors, but these normally show when the whole shebang crashes... and unless you have a crashing BOINC.... ;-)

---