Bug 584900

Created attachment 408388 [details]
File: backtrace

Kerneloops reported crash simultaneously with Firefox crash

#3  <signal handler called>
No symbol table info available.
#4  _cairo_gstate_get_matrix (gstate=0xd66b3060, matrix=0xbfcfdaa0)
    at cairo-gstate.c:581
No locals.
#5  0x006195a5 in cairo_pop_group (cr=0x6a954400) at cairo.c:545
        group_surface = <value optimized out>
        parent_target = <value optimized out>
        group_pattern = 0x95b0a460
        group_matrix = {xx = 4.0869638934346872e-310, yx = 
    6.1770317065288164e-303, xy = -1.7095739304657397e-198, yy = 
    -0.24888758825244628, x0 = 1.5899379475355701e-314, y0 = 
    1.1458777271212471e-311}
#6  0x00619638 in cairo_pop_group_to_source (cr=0x6a954400) at cairo.c:596
        group_pattern = <value optimized out>
#7  0x01a4c5b6 in gfxContext::PopGroupToSource (this=0x749f4420)
    at gfxContext.cpp:747
No locals.
#8  0x0130fa86 in nsDisplayOpacity::Paint (this=0x6a5f83ac, aBuilder=
    0xbfcfdd04, aCtx=0x96e05b80, aDirtyRect=...) at nsDisplayList.cpp:910
        opacity = 0.25
        devCtx = {<nsCOMPtr_base> = {mRawPtr = 0x69f7b120}, <No data fields>}
        ctx = 0x749f4420
        bounds = {x = 48960, y = 19500, width = 720, height = 300}
        r = {pos = {x = 816, y = 325}, size = {width = 12, height = 5}}
#9  0x0130f76e in nsDisplayList::Paint (this=0x69f1c844, aBuilder=0xbfcfdd04, 
    aCtx=0x96e05b80, aDirtyRect=...) at nsDisplayList.cpp:313
        i = 0x6a5f83ac
#10 0x0130f93b in Paint (this=0x69f1c838, aBuilder=0xbfcfdd04, aCtx=
    0x96e05b80, aDirtyRect=...) at nsDisplayList.cpp:791
No locals.
#11 nsDisplayClip::Paint (this=0x69f1c838, aBuilder=0xbfcfdd04, aCtx=
    0x96e05b80, aDirtyRect=...) at nsDisplayList.cpp:978
        dirty = {x = 31980, y = 19500, width = 38700, height = 32760}
#12 0x0130f76e in nsDisplayList::Paint (this=0xbfcfdcfc, aBuilder=0xbfcfdd04, 
    aCtx=0x96e05b80, aDirtyRect=...) at nsDisplayList.cpp:313
        i = 0x69f1c838



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