id,summary,reporter,owner,description,type,status,priority,milestone,component,version,resolution,keywords,cc,difficulty 1643,"Crash in csi ""report""",felix winkelmann,,"Running csi 5.1.1 (29b3d6113985e2f110698d8ab7f398f51a88a819, debugbuild) I get the following: {{{ CHICKEN (c) 2008-2019, The CHICKEN Team (c) 2000-2007, Felix L. Winkelmann Version 5.1.1 (rev 29b3d611) openbsd-unix-gnu-x86-64 [ 64bit dload ptables ] #;1> ,r Features: 64bit chicken chicken-5 chicken-5.1 csi dload full-numeric-tower gnu little-endian openbsd ptables srfi-0 srfi-11 srfi-12 srfi-15 srfi-16 srfi-17 srfi-2 srfi-23 srfi-26 srfi-28 srfi-30 srfi-31 srfi-39 srfi-46 srfi-55 srfi-6 srfi-6 srfi-61 srfi-62 srfi-8 srfi-88 srfi-9 unix x86-64 [panic] Low-level type assertion C_fixnump(C_VAL1(t2))=#t failed at csi.c:5877 - execution terminated ...more... csi.scm:473: printf csi.scm:484: scheme#make-string csi.scm:484: scheme#display csi.scm:471: g1088 csi.scm:473: printf csi.scm:481: scheme#display csi.scm:502: chicken.platform#machine-type csi.scm:503: chicken.platform#feature? csi.scm:504: chicken.platform#software-type csi.scm:505: chicken.platform#software-version csi.scm:506: chicken.platform#build-platform csi.scm:508: chicken.platform#installation-repository csi.scm:509: chicken.platform#repository-path csi.scm:511: chicken.base#keyword-style csi.scm:511: chicken.keyword#keyword->string csi.scm:512: shorten <-- }}} Here seems to be the assertion failure: {{{ /* shorten in k5080 in k5077 in k5074 in a5071 in k5068 in chicken.csi#report in k5059 in k4914 in k4270 in k3927 in k3845 in k3842 in k3837 in k2547 in k2544 in k2541 in k2538 in k2535 in k2532 in k2529 in k2526 in ... */ static void C_fcall f_5084(C_word t1,C_word t2){ C_word tmp; C_word t3; C_word t4; C_word t5; C_word *a; if(C_unlikely(!C_demand(C_calculate_demand(3,0,2)))){ C_save_and_reclaim_args((void *)trf_5084,2,t1,t2);} a=C_alloc(3); t3=(*a=C_CLOSURE_TYPE|2,a[1]=(C_word)f_5092,a[2]=t1,tmp=(C_word)a,a+=3,tmp); t4=C_fixnum_times(t2,C_fix(100)); /* <--- */ C_trace(C_text(""csi.scm:467: scheme#truncate"")); t5=*((C_word*)lf[114]+1);{ C_word av2[3]; av2[0]=t5; av2[1]=t3; av2[2]=t4; ((C_proc)(void*)(*((C_word*)t5+1)))(3,av2);}} }}} Element #0 of the symtable info is aflonum, so apparently here is an optimization going wwong by assuming shorten is only called on fixnums. ",defect,closed,major,5.2,core tools,5.1.0,invalid,,,hard