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Changed by [EMAIL PROTECTED] http://bugzilla.ximian.com/show_bug.cgi?id=79750 --- shadow/79750 2006-10-26 19:05:16.000000000 -0400 +++ shadow/79750.tmp.31068 2006-10-26 19:05:16.000000000 -0400 @@ -0,0 +1,236 @@ +Bug#: 79750 +Product: Mono: Runtime +Version: 1.1 +OS: GNU/Linux [Other] +OS Details: KUbuntu 6.06 x86 +Status: NEW +Resolution: +Severity: +Priority: Normal +Component: GC +AssignedTo: [EMAIL PROTECTED] +ReportedBy: [EMAIL PROTECTED] +QAContact: [EMAIL PROTECTED] +TargetMilestone: --- +URL: +Cc: +Summary: GC-related segfault when running winforms/updown/swf-updown.exe + +Steps to reproduce the problem: +1. checkout the winforms dir from SVN +2. cd winforms/updown; make +3. mono ./swf-updown.exe +(this happens with and without --debug, -O=-all, etc) + +Actual Results: +Segmentation fault. valgrind gives the following information: +==15648== +==15648== Conditional jump or move depends on uninitialised value(s) +==15648== at 0x810DC39: GC_promote_black_lists (blacklst.c:149) +==15648== +==15648== Conditional jump or move depends on uninitialised value(s) +==15648== at 0x810DC52: GC_promote_black_lists (blacklst.c:152) +==15648== +==15648== Conditional jump or move depends on uninitialised value(s) +==15648== at 0x8111E03: GC_push_all_eager (mark.c:1469) +==15648== +==15648== Conditional jump or move depends on uninitialised value(s) +==15648== at 0x8111E08: GC_push_all_eager (mark.c:1469) +==15648== +==15648== Use of uninitialised value of size 4 +==15648== at 0x8111C98: GC_mark_and_push_stack (mark.c:1353) +==15648== +==15648== Use of uninitialised value of size 4 +==15648== at 0x8111CA9: GC_mark_and_push_stack (mark.c:1353) +==15648== +==15648== Use of uninitialised value of size 4 +==15648== at 0x810DA2C: GC_add_to_black_list_stack (blacklst.c:211) +==15648== +==15648== Use of uninitialised value of size 4 +==15648== at 0x810DA3A: GC_add_to_black_list_stack (blacklst.c:211) +==15648== +==15648== Use of uninitialised value of size 4 +==15648== at 0x810DA6C: GC_add_to_black_list_stack (blacklst.c:221) +==15648== +==15648== Use of uninitialised value of size 4 +==15648== at 0x8111D43: GC_mark_and_push_stack (mark.c:1364) +==15648== +==15648== Use of uninitialised value of size 4 +==15648== at 0x81131D3: GC_base (misc.c:399) +==15648== +==15648== Use of uninitialised value of size 4 +==15648== at 0x81131E4: GC_base (misc.c:399) +==15648== +==15648== Use of uninitialised value of size 4 +==15648== at 0x810DA52: GC_add_to_black_list_stack (blacklst.c:211) +==15648== +==15648== Conditional jump or move depends on uninitialised value(s) +==15648== at 0x810DA5B: GC_add_to_black_list_stack (blacklst.c:211) +==15648== +==15648== Invalid read of size 4 +==15648== at 0x8111DFF: GC_push_all_eager (mark.c:1468) +==15648== Address 0x4C3F1F8 is on thread 3's stack +==15648== +==15648== Use of uninitialised value of size 4 +==15648== at 0x8111CF8: GC_mark_and_push_stack (mark.c:1390) +==15648== +==15648== Conditional jump or move depends on uninitialised value(s) +==15648== at 0x8111D02: GC_mark_and_push_stack (mark.c:1390)==15648== +==15648== Use of uninitialised value of size 4 +==15648== at 0x8111D0B: GC_mark_and_push_stack (mark.c:1391)==15648== +==15648== Use of uninitialised value of size 4 +==15648== at 0x8113210: GC_base (misc.c:416) +==15648== +==15648== Conditional jump or move depends on uninitialised value(s) +==15648== at 0x8113239: GC_base (misc.c:422) +==15648== +==15648== Conditional jump or move depends on uninitialised value(s) +==15648== at 0x811324B: GC_base (misc.c:426) +==15648== +==15648== Conditional jump or move depends on uninitialised value(s) +==15648== at 0x8111D95: GC_mark_and_push_stack (mark.c:1369) +==15648== +==15648== Use of uninitialised value of size 4 +==15648== at 0x81111BE: GC_mark_from (mark.c:759) +==15648== +==15648== Conditional jump or move depends on uninitialised value(s) +==15648== at 0x81111DC: GC_mark_from (mark.c:766) +==15648== +==15648== Use of uninitialised value of size 4 +==15648== at 0x81111E2: GC_mark_from (mark.c:769) +==15648== +==15648== Conditional jump or move depends on uninitialised value(s) +==15648== at 0x81113CF: GC_mark_from (mark.c:776) +==15648== +==15648== Conditional jump or move depends on uninitialised value(s) +==15648== at 0x8111167: GC_mark_from (mark.c:634) +==15648== +==15648== Use of uninitialised value of size 4 +==15648== at 0x8111755: GC_mark_from (mark.c:711) +==15648== +==15648== Use of uninitialised value of size 4 +==15648== at 0x8111429: GC_mark_from (mark.c:686) +==15648== +==15648== Conditional jump or move depends on uninitialised value(s) +==15648== at 0x811169D: GC_mark_from (mark.c:688) +==15648== +==15648== Conditional jump or move depends on uninitialised value(s) +==15648== at 0x81112D7: GC_mark_from (mark.c:791) +==15648== +==15648== Conditional jump or move depends on uninitialised value(s) +==15648== at 0x81114EB: GC_mark_from (mark.c:801) +==15648== +==15648== Conditional jump or move depends on uninitialised value(s) +==15648== at 0x8111209: GC_mark_from (mark.c:780) +==15648== +==15648== Use of uninitialised value of size 4 +==15648== at 0x8111241: GC_mark_from (mark.c:787) +==15648== +==15648== Conditional jump or move depends on uninitialised value(s) +==15648== at 0x811123B: GC_mark_from (mark.c:780) +==15648== +==15648== Conditional jump or move depends on uninitialised value(s) +==15648== at 0x811131D: GC_mark_from (mark.c:780) +==15648== +==15648== Conditional jump or move depends on uninitialised value(s) +==15648== at 0x8112165: GC_push_marked (mark.c:1720) +==15648== +==15648== Conditional jump or move depends on uninitialised value(s) +==15648== at 0x8111BE7: GC_mark_and_push (mark.c:1322) +==15648== +==15648== Conditional jump or move depends on uninitialised value(s) +==15648== at 0x8111FED: GC_push_marked4 (mark.c:1651) +==15648== +==15648== Conditional jump or move depends on uninitialised value(s) +==15648== at 0x8111FFC: GC_push_marked4 (mark.c:1652) +==15648== +==15648== Conditional jump or move depends on uninitialised value(s) +==15648== at 0x81120A4: GC_push_marked4 (mark.c:1651) +==15648== +==15648== Conditional jump or move depends on uninitialised value(s) +==15648== at 0x8114DE0: GC_block_empty (reclaim.c:109) +==15648== +==15648== Conditional jump or move depends on uninitialised value(s) +==15648== at 0x810E788: GC_finalize (finalize.c:560) +==15648== +==15648== Conditional jump or move depends on uninitialised value(s) +==15648== at 0x810E7E6: GC_finalize (finalize.c:583) +==15648== +==15648== Conditional jump or move depends on uninitialised value(s) +==15648== at 0x810E90D: GC_finalize (finalize.c:600) +==15648== +==15648== Conditional jump or move depends on uninitialised value(s) +==15648== at 0x8114E22: GC_block_nearly_full1 (reclaim.c:175) +==15648== +==15648== Conditional jump or move depends on uninitialised value(s) +==15648== at 0x8114E61: GC_block_nearly_full3 (reclaim.c:199) +==15648== +==15648== Conditional jump or move depends on uninitialised value(s) +==15648== at 0x8114E73: GC_block_nearly_full3 (reclaim.c:202) +==15648== +==15648== Conditional jump or move depends on uninitialised value(s) +==15648== at 0x8114E85: GC_block_nearly_full3 (reclaim.c:205) +==15648== +==15648== Conditional jump or move depends on uninitialised value(s) +==15648== at 0x8115666: GC_reclaim_block (reclaim.c:769) +==15648== +==15648== Conditional jump or move depends on uninitialised value(s) +==15648== at 0x8114FC5: GC_reclaim_clear (reclaim.c:329) +==15648== +==15648== Conditional jump or move depends on uninitialised value(s) +==15648== at 0x81150B6: GC_reclaim_clear4 (reclaim.c:434) +==15648== +==15648== Conditional jump or move depends on uninitialised value(s) +==15648== at 0x81150F4: GC_reclaim_clear4 (reclaim.c:436) +==15648== +==15648== Conditional jump or move depends on uninitialised value(s) +==15648== at 0x8115114: GC_reclaim_clear4 (reclaim.c:437) +==15648== +==15648== Conditional jump or move depends on uninitialised value(s) +==15648== at 0x811515A: GC_reclaim_clear4 (reclaim.c:439) +==15648== +==15648== Conditional jump or move depends on uninitialised value(s) +==15648== at 0x811517D: GC_reclaim_clear4 (reclaim.c:440) +==15648== +==15648== Conditional jump or move depends on uninitialised value(s) +==15648== at 0x81151A0: GC_reclaim_clear4 (reclaim.c:441) +==15648== +==15648== Conditional jump or move depends on uninitialised value(s) +==15648== at 0x81150D4: GC_reclaim_clear4 (reclaim.c:435) +==15648== +==15648== Conditional jump or move depends on uninitialised value(s) +==15648== at 0x8115137: GC_reclaim_clear4 (reclaim.c:438) +==15648== +==15648== Conditional jump or move depends on uninitialised value(s) +==15648== at 0x810DAFB: GC_is_black_listed (blacklst.c:249) +==15648== +==15648== Conditional jump or move depends on uninitialised value(s) +==15648== at 0x810DB4C: GC_is_black_listed (blacklst.c:254) +==15648== +==15648== Conditional jump or move depends on uninitialised value(s) +==15648== at 0x816B640: GC_allochblk_nth (allchblk.c:671) +==15648== +==15648== Conditional jump or move depends on uninitialised value(s) +==15648== at 0x810DB33: GC_is_black_listed (blacklst.c:249) +==15648== +==15648== Conditional jump or move depends on uninitialised value(s) +==15648== at 0x810DB40: GC_is_black_listed (blacklst.c:254) +==15648== Stack overflow in thread 1: can't grow stack to 0xBE2EEF7C +==15648== Can't extend stack to 0xBE2EE970 during signal delivery for thread 1: +==15648== no stack segment +==15648== +==15648== Process terminating with default action of signal 11 (SIGSEGV) +==15648== Access not within mapped region at address 0xBE2EE970 +==15648== at 0xA1005F1: ??? +==15648== + + +Expected Results: +Should execute as expected. + +How often does this happen? +All the time on some systems, other systems don't crash. + +Additional Information: +xenomorph was mentioning this on the winforms IRC channel; I entered it as +he had to sleep :) 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