Greetings, N.B. This bug report is for reference only, and documents only a partially reproducible check failure. No Action Requested. On Solaris 10 (Update 8 and Update 11) and Solaris 11.2 X86 VMs, and one Solaris 10 Update 10 (Non-VM) system, I see random "gmake check" failures for "tests/misc/timeout-parameters.sh". Running the test by itself (with the command line below) on the same VMs / real system will sometimes succeed and sometimes fail. gmake check TESTS=tests/misc/timeout-parameters.sh VERBOSE=yes SUBDIRS=. Looking through the attached "failure.log" file, I extracted the following command line test, which may exhibit the failure without all the make(1) and test infrastructure code: failures=0 for i in `./src/seq 1 100` do ./src/timeout 2.34e+5d sleep 0 \ || { echo fail; failures=`expr ${failures} + 1` } done echo "Total Failures: ${failures}" On a real hardware system (Xeon E3-1245v2) with a 64-bit kernel, failures are very rare (only 1 test harness failure seen, no failures of the sample code above even with 1..1000 runs). On virtual machines (also using Xeon E3-1245v2 running VMware ESXi 5.5d (latest patches) - two identical ESXi systems running similarly configured VMs), test harness failures and failures in the above command line check are rare for the 64-bit Solaris kernels. Failures on Solaris 10 32-bit kernels (on both of these ESXi servers), are easily reproduced and vary between 5% (common) and 45% (rare). Regards, Peter Bray Sydney, Australia PS: Again, no action is requested, this is intended as a file for later reference bug report.