From wdun|@p @end|ng |rom t|bco@com  Wed Feb 27 18:07:48 2019
From: wdun|@p @end|ng |rom t|bco@com (William Dunlap)
Date: Wed, 27 Feb 2019 09:07:48 -0800
Subject: [Rd] Intermittent crashes with inset `[<-` command
In-Reply-To: <CAD4oTHFgrBKncycjoFLpN3mgb1KQqNHE5eU86GaTDXvJoHsjMw@mail.gmail.com>
References: <1345861204.5109355.1551154699341.ref@mail.yahoo.com>
 <1345861204.5109355.1551154699341@mail.yahoo.com>
 <CAD4oTHFgrBKncycjoFLpN3mgb1KQqNHE5eU86GaTDXvJoHsjMw@mail.gmail.com>
Message-ID: <CAF8bMcYZgubfYQYi29n1RNBiA1EU2APN+HAJeGuN4M5Ok_Q7sg@mail.gmail.com>

Valgrind (without gctorture) reports memory misuse:

% R --debugger=valgrind --debugger-args="--leak-check=full --num-callers=18"
...
> x <- 1:200000
> y <- rep(letters[1:5], length(x) / 5L)
> for (i in 1:1000) {
+   # x[y == 'a'] <- x[y == 'b']
+   x <- `[<-`(x, y == 'a', x[y == 'b'])
+   cat(i, '')
+ }
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28
29 30 31 32 33 34 35 36 37 ==4711== Invalid read of size 1
==4711==    at 0x501A40F: Rf_xlength (Rinlinedfuns.h:542)
==4711==    by 0x501A40F: VectorAssign (subassign.c:658)
==4711==    by 0x501CDFE: do_subassign_dflt (subassign.c:1641)
==4711==    by 0x5020100: do_subassign (subassign.c:1571)
==4711==    by 0x4F66398: bcEval (eval.c:6795)
==4711==    by 0x4F7D86D: R_compileAndExecute (eval.c:1407)
==4711==    by 0x4F7DA70: do_for (eval.c:2185)
==4711==    by 0x4F7741C: Rf_eval (eval.c:691)
==4711==    by 0x4FA7181: Rf_ReplIteration (main.c:258)
==4711==    by 0x4FA7570: R_ReplConsole (main.c:308)
==4711==    by 0x4FA760E: run_Rmainloop (main.c:1082)
==4711==    by 0x40075A: main (Rmain.c:29)
==4711==  Address 0x19b3ab90 is 0 bytes inside a block of size 160,048
free'd
==4711==    at 0x4C2ACBD: free (vg_replace_malloc.c:530)
==4711==    by 0x4FAFCB2: ReleaseLargeFreeVectors (memory.c:1055)
==4711==    by 0x4FAFCB2: RunGenCollect (memory.c:1825)
==4711==    by 0x4FAFCB2: R_gc_internal (memory.c:2998)
==4711==    by 0x4FB166F: Rf_allocVector3 (memory.c:2682)
==4711==    by 0x4FB2310: Rf_allocVector (Rinlinedfuns.h:577)
==4711==    by 0x4FB2310: R_alloc (memory.c:2197)
==4711==    by 0x5023F7A: logicalSubscript (subscript.c:575)
==4711==    by 0x5026DA3: Rf_makeSubscript (subscript.c:994)
==4711==    by 0x501A2F3: VectorAssign (subassign.c:656)
==4711==    by 0x501CDFE: do_subassign_dflt (subassign.c:1641)
==4711==    by 0x5020100: do_subassign (subassign.c:1571)
==4711==    by 0x4F66398: bcEval (eval.c:6795)
==4711==    by 0x4F7D86D: R_compileAndExecute (eval.c:1407)
==4711==    by 0x4F7DA70: do_for (eval.c:2185)
==4711==    by 0x4F7741C: Rf_eval (eval.c:691)
==4711==    by 0x4FA7181: Rf_ReplIteration (main.c:258)
==4711==    by 0x4FA7570: R_ReplConsole (main.c:308)
==4711==    by 0x4FA760E: run_Rmainloop (main.c:1082)
==4711==    by 0x40075A: main (Rmain.c:29)
==4711==  Block was alloc'd at
==4711==    at 0x4C29BC3: malloc (vg_replace_malloc.c:299)
==4711==    by 0x4FB1B04: Rf_allocVector3 (memory.c:2712)
==4711==    by 0x5027574: Rf_allocVector (Rinlinedfuns.h:577)
==4711==    by 0x5027574: Rf_ExtractSubset (subset.c:115)
==4711==    by 0x502ADCD: VectorSubset (subset.c:198)
==4711==    by 0x502ADCD: do_subset_dflt (subset.c:823)
==4711==    by 0x502BE90: do_subset (subset.c:661)
==4711==    by 0x4F7741C: Rf_eval (eval.c:691)
==4711==    by 0x4F7BAC3: Rf_evalListKeepMissing (eval.c:2955)
==4711==    by 0x50200CB: R_DispatchOrEvalSP (subassign.c:1535)
==4711==    by 0x50200CB: do_subassign (subassign.c:1567)
==4711==    by 0x4F66398: bcEval (eval.c:6795)
==4711==    by 0x4F7D86D: R_compileAndExecute (eval.c:1407)
==4711==    by 0x4F7DA70: do_for (eval.c:2185)
==4711==    by 0x4F7741C: Rf_eval (eval.c:691)
==4711==    by 0x4FA7181: Rf_ReplIteration (main.c:258)
==4711==    by 0x4FA7570: R_ReplConsole (main.c:308)
==4711==    by 0x4FA760E: run_Rmainloop (main.c:1082)
==4711==    by 0x40075A: main (Rmain.c:29)
==4711==
==4711== Invalid read of size 8
==4711==    at 0x501A856: XLENGTH_EX (Rinlinedfuns.h:189)
==4711==    by 0x501A856: Rf_xlength (Rinlinedfuns.h:554)
==4711==    by 0x501A856: VectorAssign (subassign.c:658)
==4711==    by 0x501CDFE: do_subassign_dflt (subassign.c:1641)
==4711==    by 0x5020100: do_subassign (subassign.c:1571)
==4711==    by 0x4F66398: bcEval (eval.c:6795)
==4711==    by 0x4F7D86D: R_compileAndExecute (eval.c:1407)
==4711==    by 0x4F7DA70: do_for (eval.c:2185)
==4711==    by 0x4F7741C: Rf_eval (eval.c:691)
==4711==    by 0x4FA7181: Rf_ReplIteration (main.c:258)
==4711==    by 0x4FA7570: R_ReplConsole (main.c:308)
==4711==    by 0x4FA760E: run_Rmainloop (main.c:1082)
==4711==    by 0x40075A: main (Rmain.c:29)
==4711==  Address 0x19b3abb0 is 32 bytes inside a block of size 160,048
free'd
==4711==    at 0x4C2ACBD: free (vg_replace_malloc.c:530)
==4711==    by 0x4FAFCB2: ReleaseLargeFreeVectors (memory.c:1055)
==4711==    by 0x4FAFCB2: RunGenCollect (memory.c:1825)
==4711==    by 0x4FAFCB2: R_gc_internal (memory.c:2998)
==4711==    by 0x4FB166F: Rf_allocVector3 (memory.c:2682)
==4711==    by 0x4FB2310: Rf_allocVector (Rinlinedfuns.h:577)
==4711==    by 0x4FB2310: R_alloc (memory.c:2197)
==4711==    by 0x5023F7A: logicalSubscript (subscript.c:575)
==4711==    by 0x5026DA3: Rf_makeSubscript (subscript.c:994)
==4711==    by 0x501A2F3: VectorAssign (subassign.c:656)
==4711==    by 0x501CDFE: do_subassign_dflt (subassign.c:1641)
==4711==    by 0x5020100: do_subassign (subassign.c:1571)
==4711==    by 0x4F66398: bcEval (eval.c:6795)
==4711==    by 0x4F7D86D: R_compileAndExecute (eval.c:1407)
==4711==    by 0x4F7DA70: do_for (eval.c:2185)
==4711==    by 0x4F7741C: Rf_eval (eval.c:691)
==4711==    by 0x4FA7181: Rf_ReplIteration (main.c:258)
==4711==    by 0x4FA7570: R_ReplConsole (main.c:308)
==4711==    by 0x4FA760E: run_Rmainloop (main.c:1082)
==4711==    by 0x40075A: main (Rmain.c:29)
==4711==  Block was alloc'd at
==4711==    at 0x4C29BC3: malloc (vg_replace_malloc.c:299)
==4711==    by 0x4FB1B04: Rf_allocVector3 (memory.c:2712)
==4711==    by 0x5027574: Rf_allocVector (Rinlinedfuns.h:577)
==4711==    by 0x5027574: Rf_ExtractSubset (subset.c:115)
==4711==    by 0x502ADCD: VectorSubset (subset.c:198)
==4711==    by 0x502ADCD: do_subset_dflt (subset.c:823)
==4711==    by 0x502BE90: do_subset (subset.c:661)
==4711==    by 0x4F7741C: Rf_eval (eval.c:691)
==4711==    by 0x4F7BAC3: Rf_evalListKeepMissing (eval.c:2955)
==4711==    by 0x50200CB: R_DispatchOrEvalSP (subassign.c:1535)
==4711==    by 0x50200CB: do_subassign (subassign.c:1567)
==4711==    by 0x4F66398: bcEval (eval.c:6795)
==4711==    by 0x4F7D86D: R_compileAndExecute (eval.c:1407)
==4711==    by 0x4F7DA70: do_for (eval.c:2185)
==4711==    by 0x4F7741C: Rf_eval (eval.c:691)
==4711==    by 0x4FA7181: Rf_ReplIteration (main.c:258)
==4711==    by 0x4FA7570: R_ReplConsole (main.c:308)
==4711==    by 0x4FA760E: run_Rmainloop (main.c:1082)
==4711==    by 0x40075A: main (Rmain.c:29)
==4711==
==4711== Invalid read of size 1
==4711==    at 0x501997E: SubassignTypeFix (subassign.c:318)
==4711==    by 0x501A4A2: VectorAssign (subassign.c:666)
==4711==    by 0x501CDFE: do_subassign_dflt (subassign.c:1641)
==4711==    by 0x5020100: do_subassign (subassign.c:1571)
==4711==    by 0x4F66398: bcEval (eval.c:6795)
==4711==    by 0x4F7D86D: R_compileAndExecute (eval.c:1407)
==4711==    by 0x4F7DA70: do_for (eval.c:2185)
==4711==    by 0x4F7741C: Rf_eval (eval.c:691)
==4711==    by 0x4FA7181: Rf_ReplIteration (main.c:258)
==4711==    by 0x4FA7570: R_ReplConsole (main.c:308)
==4711==    by 0x4FA760E: run_Rmainloop (main.c:1082)
==4711==    by 0x40075A: main (Rmain.c:29)
==4711==  Address 0x19b3ab90 is 0 bytes inside a block of size 160,048
free'd
==4711==    at 0x4C2ACBD: free (vg_replace_malloc.c:530)
==4711==    by 0x4FAFCB2: ReleaseLargeFreeVectors (memory.c:1055)
==4711==    by 0x4FAFCB2: RunGenCollect (memory.c:1825)
==4711==    by 0x4FAFCB2: R_gc_internal (memory.c:2998)
==4711==    by 0x4FB166F: Rf_allocVector3 (memory.c:2682)
==4711==    by 0x4FB2310: Rf_allocVector (Rinlinedfuns.h:577)
==4711==    by 0x4FB2310: R_alloc (memory.c:2197)
==4711==    by 0x5023F7A: logicalSubscript (subscript.c:575)
==4711==    by 0x5026DA3: Rf_makeSubscript (subscript.c:994)
==4711==    by 0x501A2F3: VectorAssign (subassign.c:656)
==4711==    by 0x501CDFE: do_subassign_dflt (subassign.c:1641)
==4711==    by 0x5020100: do_subassign (subassign.c:1571)
==4711==    by 0x4F66398: bcEval (eval.c:6795)
==4711==    by 0x4F7D86D: R_compileAndExecute (eval.c:1407)
==4711==    by 0x4F7DA70: do_for (eval.c:2185)
==4711==    by 0x4F7741C: Rf_eval (eval.c:691)
==4711==    by 0x4FA7181: Rf_ReplIteration (main.c:258)
==4711==    by 0x4FA7570: R_ReplConsole (main.c:308)
==4711==    by 0x4FA760E: run_Rmainloop (main.c:1082)
==4711==    by 0x40075A: main (Rmain.c:29)
==4711==  Block was alloc'd at
==4711==    at 0x4C29BC3: malloc (vg_replace_malloc.c:299)
==4711==    by 0x4FB1B04: Rf_allocVector3 (memory.c:2712)
==4711==    by 0x5027574: Rf_allocVector (Rinlinedfuns.h:577)
==4711==    by 0x5027574: Rf_ExtractSubset (subset.c:115)
==4711==    by 0x502ADCD: VectorSubset (subset.c:198)
==4711==    by 0x502ADCD: do_subset_dflt (subset.c:823)
==4711==    by 0x502BE90: do_subset (subset.c:661)
==4711==    by 0x4F7741C: Rf_eval (eval.c:691)
==4711==    by 0x4F7BAC3: Rf_evalListKeepMissing (eval.c:2955)
==4711==    by 0x50200CB: R_DispatchOrEvalSP (subassign.c:1535)
==4711==    by 0x50200CB: do_subassign (subassign.c:1567)
==4711==    by 0x4F66398: bcEval (eval.c:6795)
==4711==    by 0x4F7D86D: R_compileAndExecute (eval.c:1407)
==4711==    by 0x4F7DA70: do_for (eval.c:2185)
==4711==    by 0x4F7741C: Rf_eval (eval.c:691)
==4711==    by 0x4FA7181: Rf_ReplIteration (main.c:258)
==4711==    by 0x4FA7570: R_ReplConsole (main.c:308)
==4711==    by 0x4FA760E: run_Rmainloop (main.c:1082)
==4711==    by 0x40075A: main (Rmain.c:29)
==4711==
==4711== Invalid read of size 1
==4711==    at 0x501A4B4: Rf_xlength (Rinlinedfuns.h:542)
==4711==    by 0x501A4B4: VectorAssign (subassign.c:672)
==4711==    by 0x501CDFE: do_subassign_dflt (subassign.c:1641)
==4711==    by 0x5020100: do_subassign (subassign.c:1571)
==4711==    by 0x4F66398: bcEval (eval.c:6795)
==4711==    by 0x4F7D86D: R_compileAndExecute (eval.c:1407)
==4711==    by 0x4F7DA70: do_for (eval.c:2185)
==4711==    by 0x4F7741C: Rf_eval (eval.c:691)
==4711==    by 0x4FA7181: Rf_ReplIteration (main.c:258)
==4711==    by 0x4FA7570: R_ReplConsole (main.c:308)
==4711==    by 0x4FA760E: run_Rmainloop (main.c:1082)
==4711==    by 0x40075A: main (Rmain.c:29)
==4711==  Address 0x19b3ab90 is 0 bytes inside a block of size 160,048
free'd
==4711==    at 0x4C2ACBD: free (vg_replace_malloc.c:530)
==4711==    by 0x4FAFCB2: ReleaseLargeFreeVectors (memory.c:1055)
==4711==    by 0x4FAFCB2: RunGenCollect (memory.c:1825)
==4711==    by 0x4FAFCB2: R_gc_internal (memory.c:2998)
==4711==    by 0x4FB166F: Rf_allocVector3 (memory.c:2682)
==4711==    by 0x4FB2310: Rf_allocVector (Rinlinedfuns.h:577)
==4711==    by 0x4FB2310: R_alloc (memory.c:2197)
==4711==    by 0x5023F7A: logicalSubscript (subscript.c:575)
==4711==    by 0x5026DA3: Rf_makeSubscript (subscript.c:994)
==4711==    by 0x501A2F3: VectorAssign (subassign.c:656)
==4711==    by 0x501CDFE: do_subassign_dflt (subassign.c:1641)
==4711==    by 0x5020100: do_subassign (subassign.c:1571)
==4711==    by 0x4F66398: bcEval (eval.c:6795)
==4711==    by 0x4F7D86D: R_compileAndExecute (eval.c:1407)
==4711==    by 0x4F7DA70: do_for (eval.c:2185)
==4711==    by 0x4F7741C: Rf_eval (eval.c:691)
==4711==    by 0x4FA7181: Rf_ReplIteration (main.c:258)
==4711==    by 0x4FA7570: R_ReplConsole (main.c:308)
==4711==    by 0x4FA760E: run_Rmainloop (main.c:1082)
==4711==    by 0x40075A: main (Rmain.c:29)
==4711==  Block was alloc'd at
==4711==    at 0x4C29BC3: malloc (vg_replace_malloc.c:299)
==4711==    by 0x4FB1B04: Rf_allocVector3 (memory.c:2712)
==4711==    by 0x5027574: Rf_allocVector (Rinlinedfuns.h:577)
==4711==    by 0x5027574: Rf_ExtractSubset (subset.c:115)
==4711==    by 0x502ADCD: VectorSubset (subset.c:198)
==4711==    by 0x502ADCD: do_subset_dflt (subset.c:823)
==4711==    by 0x502BE90: do_subset (subset.c:661)
==4711==    by 0x4F7741C: Rf_eval (eval.c:691)
==4711==    by 0x4F7BAC3: Rf_evalListKeepMissing (eval.c:2955)
==4711==    by 0x50200CB: R_DispatchOrEvalSP (subassign.c:1535)
==4711==    by 0x50200CB: do_subassign (subassign.c:1567)
==4711==    by 0x4F66398: bcEval (eval.c:6795)
==4711==    by 0x4F7D86D: R_compileAndExecute (eval.c:1407)
==4711==    by 0x4F7DA70: do_for (eval.c:2185)
==4711==    by 0x4F7741C: Rf_eval (eval.c:691)
==4711==    by 0x4FA7181: Rf_ReplIteration (main.c:258)
==4711==    by 0x4FA7570: R_ReplConsole (main.c:308)
==4711==    by 0x4FA760E: run_Rmainloop (main.c:1082)
==4711==    by 0x40075A: main (Rmain.c:29)
==4711==
==4711== Invalid read of size 8
==4711==    at 0x501A573: XLENGTH_EX (Rinlinedfuns.h:189)
==4711==    by 0x501A573: Rf_xlength (Rinlinedfuns.h:554)
==4711==    by 0x501A573: VectorAssign (subassign.c:672)
==4711==    by 0x501CDFE: do_subassign_dflt (subassign.c:1641)
==4711==    by 0x5020100: do_subassign (subassign.c:1571)
==4711==    by 0x4F66398: bcEval (eval.c:6795)
==4711==    by 0x4F7D86D: R_compileAndExecute (eval.c:1407)
==4711==    by 0x4F7DA70: do_for (eval.c:2185)
==4711==    by 0x4F7741C: Rf_eval (eval.c:691)
==4711==    by 0x4FA7181: Rf_ReplIteration (main.c:258)
==4711==    by 0x4FA7570: R_ReplConsole (main.c:308)
==4711==    by 0x4FA760E: run_Rmainloop (main.c:1082)
==4711==    by 0x40075A: main (Rmain.c:29)
==4711==  Address 0x19b3abb0 is 32 bytes inside a block of size 160,048
free'd
==4711==    at 0x4C2ACBD: free (vg_replace_malloc.c:530)
==4711==    by 0x4FAFCB2: ReleaseLargeFreeVectors (memory.c:1055)
==4711==    by 0x4FAFCB2: RunGenCollect (memory.c:1825)
==4711==    by 0x4FAFCB2: R_gc_internal (memory.c:2998)
==4711==    by 0x4FB166F: Rf_allocVector3 (memory.c:2682)
==4711==    by 0x4FB2310: Rf_allocVector (Rinlinedfuns.h:577)
==4711==    by 0x4FB2310: R_alloc (memory.c:2197)
==4711==    by 0x5023F7A: logicalSubscript (subscript.c:575)
==4711==    by 0x5026DA3: Rf_makeSubscript (subscript.c:994)
==4711==    by 0x501A2F3: VectorAssign (subassign.c:656)
==4711==    by 0x501CDFE: do_subassign_dflt (subassign.c:1641)
==4711==    by 0x5020100: do_subassign (subassign.c:1571)
==4711==    by 0x4F66398: bcEval (eval.c:6795)
==4711==    by 0x4F7D86D: R_compileAndExecute (eval.c:1407)
==4711==    by 0x4F7DA70: do_for (eval.c:2185)
==4711==    by 0x4F7741C: Rf_eval (eval.c:691)
==4711==    by 0x4FA7181: Rf_ReplIteration (main.c:258)
==4711==    by 0x4FA7570: R_ReplConsole (main.c:308)
==4711==    by 0x4FA760E: run_Rmainloop (main.c:1082)
==4711==    by 0x40075A: main (Rmain.c:29)
==4711==  Block was alloc'd at
==4711==    at 0x4C29BC3: malloc (vg_replace_malloc.c:299)
==4711==    by 0x4FB1B04: Rf_allocVector3 (memory.c:2712)
==4711==    by 0x5027574: Rf_allocVector (Rinlinedfuns.h:577)
==4711==    by 0x5027574: Rf_ExtractSubset (subset.c:115)
==4711==    by 0x502ADCD: VectorSubset (subset.c:198)
==4711==    by 0x502ADCD: do_subset_dflt (subset.c:823)
==4711==    by 0x502BE90: do_subset (subset.c:661)
==4711==    by 0x4F7741C: Rf_eval (eval.c:691)
==4711==    by 0x4F7BAC3: Rf_evalListKeepMissing (eval.c:2955)
==4711==    by 0x50200CB: R_DispatchOrEvalSP (subassign.c:1535)
==4711==    by 0x50200CB: do_subassign (subassign.c:1567)
==4711==    by 0x4F66398: bcEval (eval.c:6795)
==4711==    by 0x4F7D86D: R_compileAndExecute (eval.c:1407)
==4711==    by 0x4F7DA70: do_for (eval.c:2185)
==4711==    by 0x4F7741C: Rf_eval (eval.c:691)
==4711==    by 0x4FA7181: Rf_ReplIteration (main.c:258)
==4711==    by 0x4FA7570: R_ReplConsole (main.c:308)
==4711==    by 0x4FA760E: run_Rmainloop (main.c:1082)
==4711==    by 0x40075A: main (Rmain.c:29)
==4711==
==4711== Invalid read of size 1
==4711==    at 0x501C582: INTEGER_ELT (Rinlinedfuns.h:381)
==4711==    by 0x501C582: VectorAssign (subassign.c:710)
==4711==    by 0x501CDFE: do_subassign_dflt (subassign.c:1641)
==4711==    by 0x5020100: do_subassign (subassign.c:1571)
==4711==    by 0x4F66398: bcEval (eval.c:6795)
==4711==    by 0x4F7D86D: R_compileAndExecute (eval.c:1407)
==4711==    by 0x4F7DA70: do_for (eval.c:2185)
==4711==    by 0x4F7741C: Rf_eval (eval.c:691)
==4711==    by 0x4FA7181: Rf_ReplIteration (main.c:258)
==4711==    by 0x4FA7570: R_ReplConsole (main.c:308)
==4711==    by 0x4FA760E: run_Rmainloop (main.c:1082)
==4711==    by 0x40075A: main (Rmain.c:29)
==4711==  Address 0x19b3ab90 is 0 bytes inside a block of size 160,048
free'd
==4711==    at 0x4C2ACBD: free (vg_replace_malloc.c:530)
==4711==    by 0x4FAFCB2: ReleaseLargeFreeVectors (memory.c:1055)
==4711==    by 0x4FAFCB2: RunGenCollect (memory.c:1825)
==4711==    by 0x4FAFCB2: R_gc_internal (memory.c:2998)
==4711==    by 0x4FB166F: Rf_allocVector3 (memory.c:2682)
==4711==    by 0x4FB2310: Rf_allocVector (Rinlinedfuns.h:577)
==4711==    by 0x4FB2310: R_alloc (memory.c:2197)
==4711==    by 0x5023F7A: logicalSubscript (subscript.c:575)
==4711==    by 0x5026DA3: Rf_makeSubscript (subscript.c:994)
==4711==    by 0x501A2F3: VectorAssign (subassign.c:656)
==4711==    by 0x501CDFE: do_subassign_dflt (subassign.c:1641)
==4711==    by 0x5020100: do_subassign (subassign.c:1571)
==4711==    by 0x4F66398: bcEval (eval.c:6795)
==4711==    by 0x4F7D86D: R_compileAndExecute (eval.c:1407)
==4711==    by 0x4F7DA70: do_for (eval.c:2185)
==4711==    by 0x4F7741C: Rf_eval (eval.c:691)
==4711==    by 0x4FA7181: Rf_ReplIteration (main.c:258)
==4711==    by 0x4FA7570: R_ReplConsole (main.c:308)
==4711==    by 0x4FA760E: run_Rmainloop (main.c:1082)
==4711==    by 0x40075A: main (Rmain.c:29)
==4711==  Block was alloc'd at
==4711==    at 0x4C29BC3: malloc (vg_replace_malloc.c:299)
==4711==    by 0x4FB1B04: Rf_allocVector3 (memory.c:2712)
==4711==    by 0x5027574: Rf_allocVector (Rinlinedfuns.h:577)
==4711==    by 0x5027574: Rf_ExtractSubset (subset.c:115)
==4711==    by 0x502ADCD: VectorSubset (subset.c:198)
==4711==    by 0x502ADCD: do_subset_dflt (subset.c:823)
==4711==    by 0x502BE90: do_subset (subset.c:661)
==4711==    by 0x4F7741C: Rf_eval (eval.c:691)
==4711==    by 0x4F7BAC3: Rf_evalListKeepMissing (eval.c:2955)
==4711==    by 0x50200CB: R_DispatchOrEvalSP (subassign.c:1535)
==4711==    by 0x50200CB: do_subassign (subassign.c:1567)
==4711==    by 0x4F66398: bcEval (eval.c:6795)
==4711==    by 0x4F7D86D: R_compileAndExecute (eval.c:1407)
==4711==    by 0x4F7DA70: do_for (eval.c:2185)
==4711==    by 0x4F7741C: Rf_eval (eval.c:691)
==4711==    by 0x4FA7181: Rf_ReplIteration (main.c:258)
==4711==    by 0x4FA7570: R_ReplConsole (main.c:308)
==4711==    by 0x4FA760E: run_Rmainloop (main.c:1082)
==4711==    by 0x40075A: main (Rmain.c:29)
==4711==
==4711== Invalid read of size 4
==4711==    at 0x501C587: INTEGER_ELT (Rinlinedfuns.h:381)
==4711==    by 0x501C587: VectorAssign (subassign.c:710)
==4711==    by 0x501CDFE: do_subassign_dflt (subassign.c:1641)
==4711==    by 0x5020100: do_subassign (subassign.c:1571)
==4711==    by 0x4F66398: bcEval (eval.c:6795)
==4711==    by 0x4F7D86D: R_compileAndExecute (eval.c:1407)
==4711==    by 0x4F7DA70: do_for (eval.c:2185)
==4711==    by 0x4F7741C: Rf_eval (eval.c:691)
==4711==    by 0x4FA7181: Rf_ReplIteration (main.c:258)
==4711==    by 0x4FA7570: R_ReplConsole (main.c:308)
==4711==    by 0x4FA760E: run_Rmainloop (main.c:1082)
==4711==    by 0x40075A: main (Rmain.c:29)
==4711==  Address 0x19b3abc0 is 48 bytes inside a block of size 160,048
free'd
==4711==    at 0x4C2ACBD: free (vg_replace_malloc.c:530)
==4711==    by 0x4FAFCB2: ReleaseLargeFreeVectors (memory.c:1055)
==4711==    by 0x4FAFCB2: RunGenCollect (memory.c:1825)
==4711==    by 0x4FAFCB2: R_gc_internal (memory.c:2998)
==4711==    by 0x4FB166F: Rf_allocVector3 (memory.c:2682)
==4711==    by 0x4FB2310: Rf_allocVector (Rinlinedfuns.h:577)
==4711==    by 0x4FB2310: R_alloc (memory.c:2197)
==4711==    by 0x5023F7A: logicalSubscript (subscript.c:575)
==4711==    by 0x5026DA3: Rf_makeSubscript (subscript.c:994)
==4711==    by 0x501A2F3: VectorAssign (subassign.c:656)
==4711==    by 0x501CDFE: do_subassign_dflt (subassign.c:1641)
==4711==    by 0x5020100: do_subassign (subassign.c:1571)
==4711==    by 0x4F66398: bcEval (eval.c:6795)
==4711==    by 0x4F7D86D: R_compileAndExecute (eval.c:1407)
==4711==    by 0x4F7DA70: do_for (eval.c:2185)
==4711==    by 0x4F7741C: Rf_eval (eval.c:691)
==4711==    by 0x4FA7181: Rf_ReplIteration (main.c:258)
==4711==    by 0x4FA7570: R_ReplConsole (main.c:308)
==4711==    by 0x4FA760E: run_Rmainloop (main.c:1082)
==4711==    by 0x40075A: main (Rmain.c:29)
==4711==  Block was alloc'd at
==4711==    at 0x4C29BC3: malloc (vg_replace_malloc.c:299)
==4711==    by 0x4FB1B04: Rf_allocVector3 (memory.c:2712)
==4711==    by 0x5027574: Rf_allocVector (Rinlinedfuns.h:577)
==4711==    by 0x5027574: Rf_ExtractSubset (subset.c:115)
==4711==    by 0x502ADCD: VectorSubset (subset.c:198)
==4711==    by 0x502ADCD: do_subset_dflt (subset.c:823)
==4711==    by 0x502BE90: do_subset (subset.c:661)
==4711==    by 0x4F7741C: Rf_eval (eval.c:691)
==4711==    by 0x4F7BAC3: Rf_evalListKeepMissing (eval.c:2955)
==4711==    by 0x50200CB: R_DispatchOrEvalSP (subassign.c:1535)
==4711==    by 0x50200CB: do_subassign (subassign.c:1567)
==4711==    by 0x4F66398: bcEval (eval.c:6795)
==4711==    by 0x4F7D86D: R_compileAndExecute (eval.c:1407)
==4711==    by 0x4F7DA70: do_for (eval.c:2185)
==4711==    by 0x4F7741C: Rf_eval (eval.c:691)
==4711==    by 0x4FA7181: Rf_ReplIteration (main.c:258)
==4711==    by 0x4FA7570: R_ReplConsole (main.c:308)
==4711==    by 0x4FA760E: run_Rmainloop (main.c:1082)
==4711==    by 0x40075A: main (Rmain.c:29)
==4711==
38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62
...

Bill Dunlap
TIBCO Software
wdunlap tibco.com


On Wed, Feb 27, 2019 at 12:31 AM Gabriel Becker <gabembecker at gmail.com>
wrote:

> Hi Brian,
>
> I don't have a windows machine, but on a modern macbook pro I'm not able to
> get this to crash in 3.5.1 or a very recent built-from-source R-devel.  I
> increased the length of x by 2 orders of magnitude but that just made the
> loop take a lot longer to successfully run in both R versions i tested.
>
> So seems like there is some OS/machine dependency at work here (?).
>
> Best,
> ~G
>
> On Wed, Feb 27, 2019 at 12:01 AM Brian Montgomery via R-devel <
> r-devel at r-project.org> wrote:
>
> > The following code crashes after about 300 iterations on
> > my x86_64-w64-mingw32 machine on R 3.5.2 --vanilla.
> > Others have duplicated this (see
> > https://github.com/tidyverse/magrittr/issues/190 if necessary), but I
> > don't know how machine/OS-dependent it may be.
> > If it doesn't crash for you, please try increasing the length of the x
> > vector.
> >
> > Substituting the commented-out line for the one below it works correctly
> > (prints out 1:1000 and ends normally) every time.
> >
> > x <- 1:200000
> > y <- rep(letters[1:5], length(x) / 5L)
> > for (i in 1:1000) {
> >   # x[y == 'a'] <- x[y == 'b']
> >   x <- `[<-`(x, y == 'a', x[y == 'b'])
> >   cat(i, '')
> > }
> > cat('\n')
> >
> > The point of using this syntax is to make it work better with pipes, but
> > the errors occur without pipes or magrittr.
> >
> > Thank you for your help!
> >
> > ______________________________________________
> > R-devel at r-project.org mailing list
> > https://stat.ethz.ch/mailman/listinfo/r-devel
> >
>
>         [[alternative HTML version deleted]]
>
> ______________________________________________
> R-devel at r-project.org mailing list
> https://stat.ethz.ch/mailman/listinfo/r-devel
>

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[Rd] Intermittent crashes with inset `[<-` command
William Dunlap