Aborts on NAN weight pixels

[Paul Price]

Getting some unmasked NANs in the weight (and image) due to quantisation out-of-range. psphot (specifically, you identified pmSourceFitModel) chokes on these.

Program received signal SIGABRT, Aborted.
[Switching to Thread 47210886901504 (LWP 23436)]
0x00002af02403d885 in raise () from /lib/tls/libc.so.6
(gdb) w
#0 0x00002af02403d885 in raise () from /lib/tls/libc.so.6
#1 0x00002af02403eb3e in abort () from /lib/tls/libc.so.6
#2 0x00002af024037266 in assert_fail () from /lib/tls/libc.so.6
#3 0x00002af022e2e083 in psMinLM_SetABX (alpha=0x34000e0, beta=0x3400380,

params=0x67e37c0, paramMask=0x33ff920, x=0x67e3a20, y=0x67e8c70,
dy=0x67eb630,
func=0x2af021f44ea8 <pmModelFunc_QGAUSS at models/pmModel_QGAUSS.c:34>)
at psMinimizeLMM.c:285

#4 0x00002af022e2ebf1 in psMinimizeLMChi2 (min=0x29521a10, covar=0x33ffa40,

params=0x67e37c0, constraint=0x33ff8a0, x=0x67e3a20, y=0x67e8c70,
yWt=0x67eb630,
func=0x2af021f44ea8 <pmModelFunc_QGAUSS at models/pmModel_QGAUSS.c:34>)
at psMinimizeLMM.c:402

#5 0x00002af021f524b0 in pmSourceFitModel (source=0x3ff7e00, model=0x67e36d0,

mode=PM_SOURCE_FIT_EXT, maskVal=5 '\005') at pmSourceFitModel.c:170

#6 0x00002af021f6a264 in pmPSFtryModel (sources=0x275f1610,

modelName=0xa47b3c0 "PS_MODEL_QGAUSS", options=0x1e5c5c0,
maskVal=5 '\005', mark=128 '\200') at pmPSFtry.c:135

...

(gdb) f 3
#3 0x00002af022e2e083 in psMinLM_SetABX (alpha=0x34000e0, beta=0x3400380,

params=0x67e37c0, paramMask=0x33ff920, x=0x67e3a20, y=0x67e8c70,
dy=0x67eb630,
func=0x2af021f44ea8 <pmModelFunc_QGAUSS at models/pmModel_QGAUSS.c:34>)
at psMinimizeLMM.c:285

285 assert (!isnan(dy->data.F32[i]));

[eugene]

psphot was modified in r25755 to mask bare NAN pixels