Deadlocks with recent SMP current

Robert Watson rwatson at
Sat Aug 14 16:42:20 PDT 2004

On Sat, 14 Aug 2004, Jon Noack wrote:

> Here's a data point:  My dual Pentium3 system has been up for 20+ hours
> with this patch. Previously, it wouldn't survive for more than an hour
> or so (regardless of load). 

Unfortunately, I'm running a box with the same patch and did get a hang.
The patch appears to correct some known stability issues associated with
threaded processes, but the build I was using to trigger the hang doesn't
use threads, so...

Robert N M Watson             FreeBSD Core Team, TrustedBSD Projects
robert at      Principal Research Scientist, McAfee Research

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