| Title | Assertion failure in AMS: "grey == TraceSetEMPTY || SegRankSet(seg) != RankSetEMPTY" | 
| Status | suspended | 
| Priority | essential | 
| Assigned user | Gareth Rees | 
| Organization | Ravenbrook | 
| Description | Starting with scheme-advanced.c#15 [1], replace the AMC pool with AMS (the generation chain needs to be shortened to a single generation). Then run the leaf test case. $ ./scheme-advanced test-leaf.scm MPS ASSERTION FAILURE: grey == TraceSetEMPTY || SegRankSet(seg) != RankSetEMPTY ../../code/seg.c 270 | 
| Analysis | None. | 
| How found | manual_test | 
| Evidence | [1] < http://info.ravenbrook.com/project/mps...-guide/example/scheme/scheme-advanced.c> | 
| Observed in | 1.110.0 | 
| Created by | Gareth Rees | 
| Created on | 2012-11-07 13:38:44 | 
| Last modified by | Gareth Rees | 
| Last modified on | 2014-03-27 21:29:29 | 
| History | 2012-11-07 GDR Created. 2014-03-25 GDR Suspended: can no longer be reproduced. |