tags 619306 + confirmed
quit
Hi,
Alexandre Duret-Lutz wrote:
> Running gs on the attached file ends with a segfault.
>
> % gs -dSAFER arch-SPOT.eps
I can't reproduce this with upstream gs (I'm probably using the wrong
build-time parameters) but I can easily reproduce it with the ghostscript
Debian package. Backtrace:
Program received signal SIGSEGV, Segmentation fault.
0x in ?? ()
(gdb) bt
#0 0x in ?? ()
#1 0x77fc4206 in cmsEvalLUT (Lut=0x887920, In=,
Out=0x7fffc970)
at cmslut.c:512
#2 0x77fcb741 in NormalXFORM (p=0x887770, in=,
out=, Size=1)
at cmsxform.c:210
#3 0x77fbab71 in _cmsComputePrelinearizationTablesFromXFORM
(h=0x7fffcb10, nTransforms=1,
Grid=0x8895c0) at cmsgmt.c:1121
#4 0x77fce217 in _cmsPrecalculateDeviceLink (h=0x887770,
dwFlags=)
at cmssamp.c:271
#5 0x77fcc8bd in cmsCreateProofingTransform (InputProfile=, InputFormat=196618,
OutputProfile=0x580660, OutputFormat=262170, ProofingProfile=, nIntent=1,
ProofingIntent=3, dwFlags=9216) at cmsxform.c:1537
#6 0x77fccfbb in cmsCreateTransform (Input=,
InputFormat=,
Output=, OutputFormat=,
Intent=,
dwFlags=) at cmsxform.c:1618
#7 0x775eb3d7 in gsicc_get_link_profile (pis=,
dev=,
gs_input_profile=0x885bf0, gs_output_profile=0x5b1c10,
rendering_params=0x7fffccf0, memory=0x4028c8,
include_softproof=0) at ./base/gsicc_cache.c:592
#8 0x775e82f7 in gx_remap_ICC (pcc=0x6d1b00, pcs=0x445ba8,
pdc=0x770db0, pis=0x428d58, dev=0x4903b8,
select=gs_color_select_texture) at ./base/gsicc.c:347
#9 0x77529b8a in gx_remap_CIEA (pc=0x6d1b00, pcs=0x445af8,
pdc=0x770db0, pis=0x428d58, dev=0x4903b8,
select=gs_color_select_texture) at ./base/gsciemap.c:665
#10 0x777862bc in gx_remap_color (pgs=0x428d58) at ./base/gxcmap.c:553
#11 0x77778cb8 in gs_text_begin (pgs=0x428d58, text=0x7fffce60,
mem=0x4028c8, ppte=0x7fffcf48)
at ./base/gstext.c:262
#12 0x77779015 in gs_xyshow_begin (pgs=0x428d58, str=, size=,
x_widths=0x882b08, y_widths=0x0, widths_size=6, mem=0x4028c8,
ppte=0x7fffcf48) at ./base/gstext.c:413
#13 0x774f1777 in moveshow (i_ctx_p=0x444d50, have_x=1, have_y=0) at
./psi/zcharx.c:113
#14 0x775592eb in interp (pi_ctx_p=0x402388, pref=, perror_object=0x7fffde20)
at ./psi/interp.c:1263
In other words, the Device2PCS->CLut16params.Interp3D callback passed
to cmsEvalLUT is null. In fact, the entire CLut16params struct
consists of zeroes. The relevant Device2PCS structure has few nonzero
fields:
.wFlags = 584,
.InputChan = 3,
.OutputChan = 3,
.OutputEntries = 2,
.L2 = {0x72ea80, 0x72efc0, 0x729e70, 0, ...},
.Out16params = {
.nSamples = 2,
.nInputs = 1,
.nOutputs = 1,
.Domain = 1,
},
.Mat4 = {
.v = {
[0] = {.n = {14870, 11683, 5040},},
[1] = {.n = {7908, 9, 2630},},
[2] = {.n = {467, 2684, 23883},},
}
},
.L4 = {0x78ebc0, 0x78efd0, 0x78f3e0, 0, ...},
.L4params = {
.nSamples = 512,
.nInputs = 1,
.nOutputs = 1,
.Domain = 511,
},
.L4Entries = 512
That structure is filled by cmsReadICCLut, which calls
ReadLUT_A2B(Icc, NewLUT, offset, sig) to fill it. What this all means
is beyond my expertise. Hints?
$ dpkg-query -W liblcms1
liblcms11.18.dfsg-1.2
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