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[ clisp-Bugs-1575811 ] 2.40 sigsegv on sparc
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[ clisp-Bugs-1575811 ] 2.40 sigsegv on sparc
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Bugs item #1575811, was opened at 2006-10-12 06:01
Message generated for change (Comment added) made by sds You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=101355&aid=1575811&group_id=1355 Please note that this message will contain a full copy of the comment thread, including the initial issue submission, for this request, not just the latest update. Category: clisp Group: segfault Status: Open Resolution: None Priority: 5 Private: No Submitted By: Peter Van Eynde (pvaneynd) Assigned to: Bruno Haible (haible) Summary: 2.40 sigsegv on sparc Initial Comment: bulding 2.40 with: ./configure debian/build --prefix=/usr --fsstnd=debian --with-dynamic-ffi --with-dynamic-modules --with-module=bindings/glibc --with-module=clx/new-clx --with-debug results in a crash in lisp.run using gdb I see: (gdb) run ./lisp.run -B . -N locale -E 1:1 -Efile UTF-8 -Eterminal UTF-8 -norc -m 1800KW -x "(and (load \"init.lisp\") (sys::%saveinitmem) (ext::exit)) (ext::exit t)" Starting program: /home/pvaneynd/clisp/clisp-2.40.orig/debian/build/lisp.run ./lisp.run -B . -N locale -E 1:1 -Efile UTF-8 -Eterminal UTF-8 -norc -m 1800KW -x "(and (load \"init.lisp\") (sys::%saveinitmem) (ext::exit)) (ext::exit t)" STACK depth: 98206 Program received signal SIGSEGV, Segmentation fault. 0x0016effc in hash_lookup_builtin (ht={one_o = 3777369}, obj={one_o = 3783721}, allowgc=false, KVptr_=0xefffe458, Iptr_=0xefffe454) at hashtabl.d:1610 1610 while (!eq(*Nptr,nix)) { /* track "list" : "list" finished -> not found */ (gdb) print Nptr $2 = (gcv_object_t *) 0x43f1c16c (gdb) print /x ht $4 = {one_o = 0x39a359} (gdb) frame #0 0x0016effc in hash_lookup_builtin (ht={one_o = 3777369}, obj={one_o = 3783721}, allowgc=false, KVptr_=0xefffe458, Iptr_=0xefffe454) at hashtabl.d:1610 1610 while (!eq(*Nptr,nix)) { /* track "list" : "list" finished -> not found */ (gdb) backtrace #0 0x0016effc in hash_lookup_builtin (ht={one_o = 3777369}, obj={one_o = 3783721}, allowgc=false, KVptr_=0xefffe458, Iptr_=0xefffe454) at hashtabl.d:1610 #1 0x00173690 in gethash (obj=Cannot access memory at address 0x43f1c16c ) at hashtabl.d:2416 #2 0x00284d54 in register_foreign_variable (address=0x357100, name_asciz=0x32cd00 "ffi_user_pointer", flags=0, size=4) at foreign.d:185 #3 0x002a0edc in init_ffi () at foreign.d:4422 #4 0x0004675c in main (argc=17, argv=0xefffe6c4) at spvw.d:3345 (gdb) print flags $5 = 2 '\002' (gdb) print hashindex $6 = 1357776787 (gdb) print kvtable $7 = {one_o = 3777329} (gdb) print kvt_data $8 = (gcv_object_t *) 0x39a348 I there are any gdb commands I can execute to help debug this problem, just ask ---------------------------------------------------------------------- >Comment By: Sam Steingold (sds) Date: 2009-10-20 11:24 Message: note that I observe the crash with "gcc -g -O0" ---------------------------------------------------------------------- Comment By: Sam Steingold (sds) Date: 2009-10-20 10:16 Message: same crash: Program received signal SIGSEGV, Segmentation fault. 0x0016dfb4 in hash_lookup_builtin (ht=..., obj=..., allowgc=false, KVptr_=0xffef14d4, Iptr_=0xffef14d0) at ../src/hashtabl.d:1417 1417 while (!eq(*Nptr,nix)) { /* track "list" : "list" finished -> not found */ (gdb) where #0 0x0016dfb4 in hash_lookup_builtin (ht=..., obj=..., allowgc=false, KVptr_=0xffef14d4, Iptr_=0xffef14d0) at ../src/hashtabl.d:1417 #1 0x0017244c in gethash (obj=..., ht=..., allowgc=false) at ../src/hashtabl.d:2219 #2 0x0027dd34 in register_foreign_inttype (name_asciz=0x2ec938 "ssize_t", size=4, signed_p=true) at ../src/foreign.d:274 #3 0x0029aab0 in init_ffi () at ../src/foreign.d:4604 #4 0x00046ff4 in main (argc=18, argv=0xffef1784) at ../src/spvw.d:3841 with current cvs head on Linux titan 2.6.24.4 #1 SMP Sat Apr 12 20:33:06 UTC 2008 sparc64 GNU/Linux with gcc (Debian 4.3.4-5) 4.3.4 ---------------------------------------------------------------------- Comment By: Raymond Toy (rtoy) Date: 2008-04-02 17:59 Message: Logged In: YES user_id=28849 Originator: NO The crash I reported isn't in the same place, and it's sparc/solaris, not sparc/linux. make check is running, and here is the last output before crashing: (PROGN (DEFGENERIC TESTGF00 (&REST ARGS &KEY) (:METHOD (&REST ARGS))) (TESTGF00 'A 'B)) [SIMPLE-KEYWORD-ERROR]: #:COMPILED-FORM-180-1: illegal keyword/value pair A, B in argument list. The allowed keywords are NIL Here is part of the backtrace. I don't think this is the same bug. #0 top_of_back_trace_frame (bt=0x669400fb) at debug.d:1104 #1 0x00034bc8 in unwind_upto (upto_frame=0xffbe9464) at eval.d:624 #2 0x00043d40 in invoke_handlers (cond=0x1a952901) at eval.d:697 #3 0x000be904 in C_clcs_signal (argcount=0, rest_args_pointer=0x1ba2e4) at error.d:775 #4 0x00037234 in funcall_subr (fun=0x1a0a7a, args_on_stack=0) at eval.d:5179 #5 0x000bbb54 in signal_and_debug (condition=0x1a952901) at error.d:204 #6 0x000bbdd4 in end_error (stackptr=0x1ba2c4, start_driver_p=true) at error.d:317 #7 0x000bbf6c in error (errortype=keyword_error, errorstring=0x139a70 "~S: illegal keyword/value pair ~S, ~S in argument list.\nThe allowed keywords are ~S") at error.d:349 #8 0x000bf380 in error_key_badkw (fun=0x1a951241, key=0x1a9095a9, val=0x1a9095d9, kwlist=0x1a68d9) at error.d:1317 #9 0x00036764 in match_cclosure_key (closure=0x1a952419, argcount=1, key_args_pointer=0x1ba2bc, rest_args_pointer=0x1ba2bc) at eval.d:2803 #10 0x0004361c in apply_closure (closure=0x1a952419, args_on_stack=0, args=0x1a68d9) at eval.d:4747 #11 0x0003d538 in interpret_bytecode_ (closure_in=0x1a94e491, codeptr=0x1a950b48, byteptr_in=0x1a950b6f "") at eval.d:7737 #12 0x00042e58 in apply_closure (closure=0x1a94e491, args_on_stack=0, args=0x669429e3) at eval.d:4770 #13 0x0003d538 in interpret_bytecode_ (closure_in=0x1a94e491, codeptr=0x1a94f2c8, byteptr_in=0x0) at eval.d:7737 #14 0x0003e764 in eval1 (form=0x1ba2b4) at eval.d:3866 #15 0x0003f0f4 in eval (form=0x66944853) at eval.d:2908 ---------------------------------------------------------------------- Comment By: Sam Steingold (sds) Date: 2008-04-02 09:45 Message: Logged In: YES user_id=5735 Originator: NO the crash is with _some_ gcc version is a very basic part of CLISP. if you can read assembly, it would be nice if you could figure out which part of hashtabl.d is miscompiled and file a gcc bug report. ---------------------------------------------------------------------- Comment By: Raymond Toy (rtoy) Date: 2008-04-01 18:44 Message: Logged In: YES user_id=28849 Originator: NO It's not clear if the bug I reported in that link is in clisp or in gcc. I didn't investigate the cause. ---------------------------------------------------------------------- Comment By: Sam Steingold (sds) Date: 2008-03-31 09:58 Message: Logged In: YES user_id=5735 Originator: NO apparently this is a bug in some versions of gcc on solaris. what is your gcc version? http://permalink.gmane.org/gmane.lisp.clisp.general/12179 In case any one cares, I tried building clisp 2.44.1 using gcc 3.4.3 on sparc. The sources appear to build and an image is created. However, when running make check, the check eventually gets a segfault that crashes clisp. I didn't use any special libraries and only had libsigsegv available. More info available if anyone wants to take a look. Using the same sources, I rebuilt using gcc 3.3.3, and make check finishes just fine. This works for me, so the fact that 3.4.3 doesn't work is not so important to me. ---------------------------------------------------------------------- Comment By: Sam Steingold (sds) Date: 2006-10-16 09:23 Message: Logged In: YES user_id=5735 this abort means nothing: zout calls PRIN1 which conses and thus invalidates ht. note that it has the right allocstamp before zout. ---------------------------------------------------------------------- Comment By: Peter Van Eynde (pvaneynd) Date: 2006-10-16 02:12 Message: Logged In: YES user_id=7267 Breakpoint 16, hash_lookup_builtin (ht={one_o = 5853545, allocstamp = 67855}, obj={one_o = 5859937, allocstamp = 67855}, allowgc=false, KVptr_=0xefffe410, Iptr_=0xefffe40c) at hashtabl.d:1571 1571 GCTRIGGER_IF(allowgc, GCTRIGGER2(ht,obj)); (gdb) xout ht #(CL::HASH-TABLE size=3 maxcount=1 mincount=0 free= test=CL::EQUAL KV=#(CL::NIL #(#<UNBOUND> #<UNBOUND> #<UNBOUND>) 0 0 #<UNBOUND> #<UNBOUND> #<UNBOUND>)){one_o = 5853545, allocstamp = 67855} (gdb) zout ht #S(HASH-TABLE :TEST EXT::FASTHASH-EQUAL) {one_o = 5853545, allocstamp = 68046} (gdb) print TheHashtable_(ht) Program received signal SIGABRT, Aborted. 0x5026f910 in kill () from /lib/libc.so.6 The program being debugged was signaled while in a function called from GDB. GDB remains in the frame where the signal was received. To change this behavior use "set unwindonsignal on" Evaluation of the expression containing the function (TheHashtable_) will be abandoned. it seems it aborted: (gdb) backtrace #0 0x5026f910 in kill () from /lib/libc.so.6 #1 0x5027093c in abort () from /lib/libc.so.6 #2 0x000cbedc in ngci_pointable (obj={one_o = 5853545, allocstamp = 67855}) at lispbibl.d:6927 #3 0x0002c54c in TheHashtable_ (x={one_o = 0, allocstamp = 0}) at spvw_debug.d:454 #4 <function called from gdb> #5 hash_lookup_builtin (ht={one_o = 5853545, allocstamp = 67855}, obj={one_o = 5859937, allocstamp = 67855}, allowgc=false, KVptr_=0xefffe410, Iptr_=0xefffe40c) at hashtabl.d:1571 #6 0x002a95d4 in gethash (obj={one_o = 5859937, allocstamp = 67855}, ht={one_o = 5853545, allocstamp = 67855}, allowgc=false) at hashtabl.d:2416 #7 0x0045250c in register_foreign_variable (address=0x55298c, name_asciz=0x50f838 "ffi_user_pointer", flags=0, size=4) at foreign.d:185 #8 0x004832a8 in init_ffi () at foreign.d:4422 #9 0x000c4418 in main (argc=16, argv=0xefffe6d4) at spvw.d:3345 (gdb) down #2 0x000cbedc in ngci_pointable (obj={one_o = 5853545, allocstamp = 67855}) at lispbibl.d:6927 6927 abort(); (gdb) list 6922 return obj.one_o; 6923 } 6924 static inline aint ngci_pointable (object obj) { 6925 if (!(gcinvariant_symbol_p(obj) 6926 || obj.allocstamp == alloccount || nonimmsubrp(obj))) 6927 abort(); 6928 nonimmprobe(obj.one_o); 6929 return obj.one_o; 6930 } 6931 static inline aint ngci_pointable (gcv_object_t obj) { (gdb) print obj $1 = {one_o = 5853545, allocstamp = 67855} (gdb) print alloccount $2 = 68046 (gdb) print gcinvariant_symbol_p(obj) $3 = false nonimmprobe is a macro and difficult to recreate it seems, but I can check if the pointer works: (gdb) print obj.one_o $14 = 5853545 (gdb) print /x obj.one_o $15 = 0x595169 (gdb) x /xw obj.one_o 0x595169: 0x59516904 I will retry now with 2.41. ---------------------------------------------------------------------- Comment By: Sam Steingold (sds) Date: 2006-10-13 15:32 Message: Logged In: YES user_id=5735 debug_gcsafety detects gcsafety bugs _before_ the GC that crashes. obviously, this is not such a bug. too bad. how about setting a break in hash_lookup_builtin and doing -before- the segfault (I assume that this is the first time you enter hash_lookup_builtin): (gdb) xout ht (gdb) zout ht (gdb) print TheHashtable_(ht) and examining the slots. ---------------------------------------------------------------------- Comment By: Peter Van Eynde (pvaneynd) Date: 2006-10-13 14:47 Message: Logged In: YES user_id=7267 I did the rebuild with g++-3.3 (on sparc/linux as you guessed) and after fixing a trivial casting problem I get: (gdb) run -B . -N locale -E 1:1 -Efile UTF-8 -Eterminal UTF-8 -norc -m 1800KW -x "(and (load \"init.lisp\") (sys::%saveinitmem) (ext::exit)) (ext::exit t)" Starting program: /home/pvaneynd/clisp/clisp-2.40.orig/debian/build/lisp.run -B . -N locale -E 1:1 -Efile UTF-8 -Eterminal UTF-8 -norc -m 1800KW -x "(and (load \"init.lisp\") (sys::%saveinitmem) (ext::exit)) (ext::exit t)" STACK depth: 230302 Program received signal SIGSEGV, Segmentation fault. 0x002a12bc in hash_lookup_builtin (ht={one_o = 5853545, allocstamp = 67855}, obj={one_o = 5859937, allocstamp = 67855}, allowgc=false, KVptr_=0xefffe410, Iptr_=0xefffe40c) at hashtabl.d:1610 1610 while (!eq(*Nptr,nix)) { /* track "list" : "list" finished -> not found */ Warning: the current language does not match this frame. Also as the failure is rather fast I guess there has been no gc yet. ---------------------------------------------------------------------- Comment By: Sam Steingold (sds) Date: 2006-10-12 18:45 Message: Logged In: YES user_id=5735 you didn't specify it, but, presumably, this is linux/sparc (not solaris). ---------------------------------------------------------------------- Comment By: Sam Steingold (sds) Date: 2006-10-12 11:30 Message: Logged In: YES user_id=5735 one thing you could do is build with g++ to check for GC safety. http://clisp.cons.org/impnotes/gc-safety.html CC=g++ ./configure --with-debug build-g-gxx thanks. ---------------------------------------------------------------------- You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=101355&aid=1575811&group_id=1355 ------------------------------------------------------------------------------ Come build with us! 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