[Flightgear-devel] Failed assertion in ssg.h

[Geoff Reidy]

Hi all,

I'm running current cvs of plib, simgear and flightgear on linux.
Compiled with threads and without logging.
After running for 3 or 4 hours fgfs always seg faults on me, normally I strip the binary but this time I didn't and now I get this error:
fgfs: ssg.h:302: void ssgBase::deRef(): Assertion `refc > 0' failed.
Aborted

So I ran it through gdb and did a backtrace. (The nav-vor-ident errors occur the whole time the program is running at the rate of about one per second.)

Let me know if there's anything else I can do.

Regards,
Geoff

$GPRMC,091314,A,1153.264,S,12434.835,E,610.9,-43.4,1411102,0.000,E*4B
$GPGGA,091314,1153.264,S,12434.835,E,1,,,15031,F,,,,*37
$GPRMC,091314,A,1153.264,S,12434.835,E,610.9,-43.4,1411102,0.000,E*4B
$GPGGA,091314,1153.264,S,12434.835,E,1,,,15031,F,,,,*37
Failed to remove nav-vor-ident sound
Failed to remove nav-vor-ident sound
Failed to remove nav-vor-ident sound
Failed to remove nav-vor-ident sound
fgfs: ssg.h:302: void ssgBase::deRef(): Assertion `refc > 0' failed.

Program received signal SIGABRT, Aborted.
0x4042a3d1 in kill () from /lib/i686/libc.so.6
(gdb) bt
#0 0x4042a3d1 in kill () from /lib/i686/libc.so.6
#1 0x40305dad in raise () from /lib/i686/libpthread.so.0
#2 0x4042b979 in abort () from /lib/i686/libc.so.6
#3 0x4042466f in __assert_fail () from /lib/i686/libc.so.6
#4 0x082b2c56 in ssgDeRefDelete(ssgBase*) () at ssg.cxx:89
#5 0x082b89c9 in ~ssgLeaf (this=0xccb62a0) at ssgLeaf.cxx:79
#6 0x082ce88b in ~ssgVtxTable (this=0xccb62a0) at ssgVtxTable.cxx:148
#7 0x082b2c38 in ssgDeRefDelete(ssgBase*) (s=0x1) at ssg.cxx:89
#8 0x082b59c4 in ssgBranch::removeKid(int) (this=0xcca3660, n=1076928544)
at ssgBranch.cxx:97
#9 0x081f036e in fgPartialFreeSSGtree (b=0xcca3660, n=90) at tileentry.cxx:724
#10 0x081f0385 in fgPartialFreeSSGtree (b=0xcca3500, n=100) at tileentry.cxx:713
#11 0x081f0385 in fgPartialFreeSSGtree (b=0x52128070, n=100) at tileentry.cxx:713
#12 0x081f0385 in fgPartialFreeSSGtree (b=0x52932bb0, n=100) at tileentry.cxx:713
#13 0x081f0695 in FGTileEntry::free_tile() (this=0x52932ab8) at tileentry.cxx:777
#14 0x081f4562 in FGTileMgr::update(double, double, double, double*, SGBucket, SGBucket, Point3D) (this=0x8401b40, lon=1.2731974745791634e-313, lat=0.005715523559064053,
visibility_meters=64000, abs_pos_vector=0x8bc0314, p_current=Cannot access memory at address 0x6
) at tilemgr.cxx:398
#15 0x08053126 in fgMainLoop () at ../../src/Main/location.hxx:116
#16 0x40084df2 in glutMainLoop () from /usr/X11R6/lib/libglut.so.3
#17 0x4008406d in glutMainLoop () from /usr/X11R6/lib/libglut.so.3
#18 0x08054803 in mainLoop(int, char**) (argc=1, argv=0xbffff5d0) at main.cxx:1742
#19 0x08054ebf in main (argc=1, argv=0xbffff774) at main.cxx:1834
#20 0x40419082 in __libc_start_main () from /lib/i686/libc.so.6
(gdb)



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