On 3/26/2012 4:06 PM, Jon TURNEY wrote:
On 26/03/2012 20:47, Ken Brown wrote:
On 3/24/2012 3:47 PM, Ken Brown wrote:
To reproduce:
1. Install texworks-0.4.3-1 from Cygwin Ports.
2. Create two tex files in your home directory, say test1.tex and
test2.tex. I don't know if the contents matter, but in my case both
files contain the following:
\documentclass{article}
\begin{document}
Hello
\end{document}
3. Start the X server by using the Start Menu shortcut.
4. Start texworks by typing "texworks&" in an xterm window.
5. Click on the "Open" icon to open one of the tex files. Then do the
same to open the second.
At this point the X server crashes and gives the message "Caught signal
11 (segmentation fault)". Server aborting."
Before the crash I get the following warning in the xterm window when I
open a file:
QFileSystemWatcher: failed to add paths: /home/kbrown
I don't know if this is significant.su
I'm attaching cygcheck output and XWin.0.log.
Ken
P.S. I'm currently using the test version of xorg-server (1.12.0-1), but
I can reproduce the crash with 1.11.4-5 also. Also, I'm currently
testing the latest Cygwin snapshot. I just tried reverting to 1.7.11,
and the X server still crashed, but not just from opening two files. I
had to open and compile several tex documents before it happened.
One further detail for anyone trying to reproduce this: I just tried it on a
second computer, and my recipe didn't immediately produce the crash. But I
simply started trying to use texworks (loading and compiling various tex
documents), and the X server crashed within a few minutes.
Thanks very much for the detailed report.
On the off chance this is a known issue, would you mind downloading the X
server symbols and getting a backtrace using the instruction on [1], before I
try to reproduce it.
OK, the backtrace is attached.
Ken
$ gdb --pid=5152
GNU gdb (GDB) 7.3.50.20111026-cvs (cygwin-special)
[...]
Reading symbols from /usr/bin/XWin.exe...Reading symbols from
/usr/lib/debug/usr/bin/XWin.dbg...
warning: section .gnu_debuglink not found in /usr/lib/debug/usr/bin/XWin.dbg
done.
done.
(gdb) c
Continuing.
Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 6040.0x1ac]
0x004097c2 in NetWMToWinIconAlpha (icon=0xfed20010)
at
/opt/wip/cygport-git/xorg-server/xorg-server-1.12.0-1/src/xserver-cygwin-1.12.0-1/hw/xwin/winmultiwindowicons.c:295
295
/opt/wip/cygport-git/xorg-server/xorg-server-1.12.0-1/src/xserver-cygwin-1.12.0-1/hw/xwin/winmultiwindowicons.c:
No such file or directory.
in
/opt/wip/cygport-git/xorg-server/xorg-server-1.12.0-1/src/xserver-cygwin-1.12.0-1/hw/xwin/winmultiwindowicons.c
(gdb) bt full
#0 0x004097c2 in NetWMToWinIconAlpha (icon=0xfed20010)
at
/opt/wip/cygport-git/xorg-server/xorg-server-1.12.0-1/src/xserver-cygwin-1.12.0-1/hw/xwin/winmultiwindowicons.c:295
hdc = <optimized out>
ii = {fIcon = 1, xHotspot = 0, yHotspot = 0, hbmMask = 0xf050f17,
hbmColor = 0x93051250}
bmh = {bV4Size = 108, bV4Width = 512, bV4Height = -512, bV4Planes = 1,
bV4BitCount = 32, bV4V4Compression = 3, bV4SizeImage = 0,
bV4XPelsPerMeter = 0, bV4YPelsPerMeter = 0, bV4ClrUsed = 0,
bV4ClrImportant = 0, bV4RedMask = 16711680, bV4GreenMask = 65280,
bV4BlueMask = 255, bV4AlphaMask = 4278190080, bV4CSType = 0,
bV4Endpoints = {ciexyzRed = {ciexyzX = 0, ciexyzY = 0, ciexyzZ = 0},
ciexyzGreen = {ciexyzX = 0, ciexyzY = 0, ciexyzZ = 0},
ciexyzBlue = {ciexyzX = 0, ciexyzY = 0, ciexyzZ = 0}},
bV4GammaRed = 0, bV4GammaGreen = 0, bV4GammaBlue = 0}
width = <optimized out>
height = 512
pixels = 0xfed20018
result = 0x2610b75
DIB_pixels = 0x4ff0000
#1 NetWMToWinIcon (bpp=<optimized out>, icon=0xfed20010)
at
/opt/wip/cygport-git/xorg-server/xorg-server-1.12.0-1/src/xserver-cygwin-1.12.0-1/hw/xwin/winmultiwindowicons.c:369
hasIconAlphaChannel = 1
versionChecked = 1 '\001'
#2 0x0040a085 in winXIconToHICON (pWin=0x805399d8, iconSize=32)
at
/opt/wip/cygport-git/xorg-server/xorg-server-1.12.0-1/src/xserver-cygwin-1.12.0-1/hw/xwin/winmultiwindowicons.c:449
mask = <optimized out>
image = <optimized out>
imageMask = <optimized out>
dst = <optimized out>
src = <optimized out>
iconPtr = <optimized out>
maskPtr = <optimized out>
planes = 1
bpp = 32
effBPP = <optimized out>
i = <optimized out>
biggest_size = 512
hDC = <optimized out>
ii = {fIcon = 1969585604, xHotspot = 1969585555, yHotspot = 283154527,
hbmMask = 0x0, hbmColor = 0x0}
hints = {flags = 1969585433, input = 11, initial_state = 11,
icon_pixmap = 0, icon_window = 4292791408, icon_x = 1969578512,
icon_y = -2142004644, icon_mask = 1024, window_group = 4292791464}
hIcon = 0x0
biggest_icon = <optimized out>
_XA_NET_WM_ICON = 361
generation = 1
icon = <optimized out>
icon_data = <optimized out>
size = <optimized out>
#3 0x0040a5be in winUpdateIcon (id=10487015)
at
/opt/wip/cygport-git/xorg-server/xorg-server-1.12.0-1/src/xserver-cygwin-1.12.0-1/hw/xwin/winmultiwindowicons.c:545
pWinPriv = 0x80539a5c
pWin = 0x805399d8
hIcon = 0x0
hIconSmall = 0x0
hIconOld = <optimized out>
#4 0x004204b0 in winMultiWindowWMProc (pArg=0x8003f878)
at
/opt/wip/cygport-git/xorg-server/xorg-server-1.12.0-1/src/xserver-cygwin-1.12.0-1/hw/xwin/winmultiwindowwm.c:809
pNode = 0x805398e0
__cleanup_handler = {function = 0x41ec30 <winMultiWindowThreadExit>,
arg = 0x0, next = 0x0}
pProcArg = 0x8003f878
pWMInfo = 0x8003ed40
#5 0x610fb6f2 in pthread::thread_init_wrapper(void*) ()
from /usr/bin/cygwin1.dll
No symbol table info available.
#6 0x61086562 in thread_wrapper(void*) () from /usr/bin/cygwin1.dll
No symbol table info available.
Backtrace stopped: Not enough registers or memory available to unwind further--
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