Hi,
My buildfarm member, osprey, has been crashing on the union regression test on CVS tip since after march 11th with a segmentation fault.
See the backtrace further down.
The crash occurs in pg_sprintf, work on which has been done beginning march 11th....
I'm not sure I'm reading the trace correctly, but I find odd that it seems to crash when trying to output the value "-5.7430974560366591e+240", but in the expected result of the union test, this value does not seem to be present.
Does someone see where the problem might be ?
The type argument to fmtfloat is odd (char 0). It should be one of 'eEfgG', no ?
Regards,
Rémi Zara
#0 0x0446f192 in __bt_search () from /usr/lib/libc.so.12
#1 0x0446f6de in __bt_search () from /usr/lib/libc.so.12
#2 0x0447110e in __dtoa () from /usr/lib/libc.so.12
#3 0x0446d4c0 in vfprintf_unlocked () from /usr/lib/libc.so.12
#4 0x0446d1ac in vfprintf_unlocked () from /usr/lib/libc.so.12
#5 0x0446138c in sprintf () from /usr/lib/libc.so.12
#6 0x001b814c in fmtfloat (value=-5.7430974560366591e+240, type=0 '\0', forcesign=0, leftjust=0, minlen=0, zpad=0, precision=15, pointflag=1, end=0xffffb4c7 "\r????", output=0xffffa478) at snprintf.c:671
#7 0x001b79a0 in dopr (buffer=0xffffa4c8 "", format=0x22eab7 ".*g", args=0xffffb4e4 "", end=0xffffb4c7 "\r????") at snprintf.c:561
#8 0x001b75fe in pg_vsnprintf (str=0xffffa4c8 "", count=4096, fmt=0x22eab6 "%.*g", args=0xffffb4d8 "") at snprintf.c:83
#9 0x001b7660 in pg_sprintf (str=0x303b88 '\177' <repeats 129 times>, "~", '\177' <repeats 70 times>..., fmt=0x22eab6 "%.*g") at snprintf.c:109
#10 0x00151f72 in float8out (fcinfo=0x4492994) at float.c:545
#11 0x0019fc42 in FunctionCall3 (flinfo=0x4492994, arg1=72168376, arg2=0, arg3=4294967295) at fmgr.c:1186
#12 0x00030a46 in printtup (slot=0x3030e0, self=0x2fd740) at printtup.c:341
#13 0x000cbbd4 in ExecSelect (slot=0x3030e0, dest=0x2fd740, estate=0x303020) at execMain.c:1312
#14 0x000cb918 in ExecutePlan (estate=0x303020, planstate=0x3031c0, operation=CMD_SELECT, numberTuples=0, direction=ForwardScanDirection, dest=0x2fd740) at execMain.c:1213
#15 0x000cabce in ExecutorRun (queryDesc=0x2cdcb0, direction=ForwardScanDirection, count=0) at execMain.c:228
#16 0x0013e34c in PortalRunSelect (portal=0x301020, forward=1 '\001', count=0, dest=0x2fd740) at pquery.c:746
#17 0x0013e0d2 in PortalRun (portal=0x301020, count=2147483647, dest=0x2fd740, altdest=0x2fd740, completionTag=0xffffb9a8 "") at pquery.c:561
#18 0x0013a9f4 in exec_simple_query (query_string=0x2f2020 "SELECT f1 AS ten FROM FLOAT8_TBL\nUNION ALL\nSELECT f1 FROM FLOAT8_TBL;") at postgres.c:934
#19 0x0013cbc4 in PostgresMain (argc=4, argv=0x289400, username=0x289260 "rzara") at postgres.c:3014
#20 0x0011a90c in BackendRun (port=0x292200) at postmaster.c:2787
#21 0x0011a20a in BackendStartup (port=0x292200) at postmaster.c:2427
#22 0x001189e8 in ServerLoop () at postmaster.c:1208
#23 0x00118338 in PostmasterMain (argc=6, argv=0xffffc50c) at postmaster.c:917#24 0x000e661e in main (argc=6, argv=0xffffc50c) at main.c:268
-- Rémi Zara http://www.remi-zara.net/
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