using a Freepascal 64bit UDF causes the engine to exit on client disconnect [CORE3651] #4002
Comments
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Commented by: Robert Gilland (robert.gilland_basx.com.au) Thanks Frank for raising this one |
Modified by: @AlexPeshkoffassignee: Alexander Peshkov [ alexpeshkoff ] |
Modified by: @AlexPeshkoff |
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Commented by: @AlexPeshkoff I can not reproduce this bug. I use ubuntu 11.04 with the following key components: And when running isql I have no problems with network server exits: STR_SAMEtest2 SQL> quit; |
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Commented by: Frank Schlottmann-Goedde (fsg) Here I have root@fsg-ThinkPad-E520:~# /opt/fb25cs/bin/fb_smp_server & STR_SAMEtest SQL> exit; I will try fpc 2.4 next. |
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Commented by: @AlexPeshkoff Frank, please try my binary. This time I've tested it on gentoo OS - and once again no problems. But when I try on this box with binary from 3651, server really exits. If my binary will work for you - I suggest to treat it as pascal, not firebird, problem. |
Modified by: @AlexPeshkoffAttachment: libtest64.so.bz2 [ 12092 ] |
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Commented by: Frank Schlottmann-Goedde (fsg) Your binary works as expected, so this seems to be an issue with Freepascal 2.4.4 and this bug can be considered closed. |
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Commented by: @AlexPeshkoff This bug is not reproduced when using older versions of fpc. |
Modified by: @pcisarstatus: Resolved [ 5 ] => Closed [ 6 ] |
Submitted by: Frank Schlottmann-Goedde (fsg)
Is related to CORE3649
Attachments:
libtest64.so.bz2
Votes: 2
create a simple freepascal udf:
library test64;
uses
strings;
procedure str_same(instring,outstring:pchar);cdecl;export;
begin
strcopy(outstring,instring); {return instring}
end;
exports
str_same name 'str_same';
begin
end.
declare it to the engine:
DECLARE EXTERNAL FUNCTION STR_SAME
cstring(256), cstring(256)
RETURNS parameter 2
ENTRY_POINT 'str_same'
MODULE_NAME 'test64';
use it:
fsg@fsg-ThinkPad-E520:~/src/fpc/fsg_udf$ isql -user sysdba -password masterke localhost:/opt/ibdata/employee.fdb
Database: localhost:/opt/ibdata/employee.fdb, User: sysdba
SQL> select str_same('test2') from rdb$database;
STR_SAME
test2
SQL> quit;
fsg@fsg-ThinkPad-E520:~/src/fpc/fsg_udf$
strace will report:
root@fsg-ThinkPad-E520:~# strace -p 5102
Process 5102 attached - interrupt to quit
restart_syscall(<... resuming interrupted call ...>) = 1
poll([{fd=0, events=POLLIN}], 1, -1) = 1 ([{fd=0, revents=POLLIN}])
recvfrom(0, "\0\0\0\37\0\0\0\2", 8192, 0, NULL, NULL) = 8
clone(child_stack=0x7fdb35e1bf90, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tidptr=0x7fdb35e1c9d0, tls=0x7fdb35e1c700, child_tidptr=0x7fdb35e1c9d0) = 5113
futex(0x7fdb37d1ac48, FUTEX_WAKE_PRIVATE, 1) = 1
poll([{fd=0, events=POLLIN}], 1, 60000) = 1 ([{fd=0, revents=POLLIN}])
poll([{fd=0, events=POLLIN}], 1, -1) = 1 ([{fd=0, revents=POLLIN}])
recvfrom(0, "\0\0\0\37\0\0\0\1", 8192, 0, NULL, NULL) = 8
futex(0x7fdb35e1bd80, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x7fdb37d1abe0, FUTEX_WAKE_PRIVATE, 1) = 1
poll([{fd=0, events=POLLIN}], 1, 60000) = 1 ([{fd=0, revents=POLLIN}])
poll([{fd=0, events=POLLIN}], 1, -1) = 1 ([{fd=0, revents=POLLIN}])
recvfrom(0, "\0\0\0C\0\0\0\3\0\0\0\2\0\0\0\25\0\0\0\0", 8192, 0, NULL, NULL) = 20
poll([{fd=0, events=POLLIN}], 1, 60000PANIC: attached pid 5102 exited with 0
<unfinished ... exit status 0>
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