2012/3/20 Stefan Weil <email address hidden>:
> Please try a newer compiler. gcc-4.6.2 compiles thread local storage correctly, gcc-4.3.3 obviously doesn't.
> If you can confirm that newer compilers fix this bug, I'd like to close this ticket.
>

I'm using gcc-4.6.2 now.

> --
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> report.
> https://bugs.launchpad.net/bugs/932487
>
> Title:
>  win32: git rev 59f971d crashes when accessing disk (coroutine issue)
>
> Status in QEMU:
>  Confirmed
>
> Bug description:
>  Host: XP SP3 / Vista SP2
>
>  configure commandline: ./configure --target-list="i386-softmmu"
>  --audio-drv-list=sdl --audio-card-list=ac97,sb16,adlib --disable-
>  linux-aio --disable-vnc-thread --disable-vnc-jpeg --extra-cflags="-O0
>  -pipe"
>
>  gcc -v:
>  Using built-in specs.
>  Target: mingw32
>  Configured with: ../gcc-4.3.3/configure --prefix=/mingw --build=mingw32 --enable-languages=c,ada,c++,fortran,objc,obj-c++ --with-bugurl=http://www.tdragon.net/recentgcc/bugs.php --disable-nls --disable-win32-registry --enable-libgomp --disable-werror --enable-threads --disable-symvers --enable-cxx-flags='-fno-function-sections -fno-data-sections' --enable-fully-dynamic-string --enable-version-specific-runtime-libs --enable-sjlj-exceptions --with-pkgversion='4.3.3-tdm-1 mingw32'
>  Thread model: win32
>  gcc version 4.3.3 (4.3.3-tdm-1 mingw32)
>
>  gdb output:
>  C:\msys\home\User\qemu\i386-softmmu>gdb --args qemu-system-i386.exe -L ..\pc-bios -hda xp.vmdk
>  GNU gdb (GDB) 7.3
>  Copyright (C) 2011 Free Software Foundation, Inc.
>  License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
>  This is free software: you are free to change and redistribute it.
>  There is NO WARRANTY, to the extent permitted by law.  Type "show copying"
>  and "show warranty" for details.
>  This GDB was configured as "mingw32".
>  For bug reporting instructions, please see:
>  <http://www.gnu.org/software/gdb/bugs/>...
>  Reading symbols from C:\msys\home\User\qemu\i386-softmmu/qemu-system-i386.exe...
>  done.
>  (gdb) r
>  Starting program: C:\msys\home\User\qemu\i386-softmmu/qemu-system-i386.exe -L ..\\pc-bios -hda xp.vmdk
>  [New Thread 2472.0x8e0]
>  [New Thread 2472.0xdc4]
>  [New Thread 2472.0x8f0]
>
>  Program received signal SIGSEGV, Segmentation fault.
>  [Switching to Thread 2472.0x8f0]
>  0x7c81071e in SwitchToFiber () from C:\WINDOWS\system32\kernel32.dll
>  (gdb) bt
>  #0  0x7c81071e in SwitchToFiber () from C:\WINDOWS\system32\kernel32.dll
>  #1  0x0044774c in qemu_coroutine_switch (from_=0x19593fc, to_=0xdcee9a8,
>      action=COROUTINE_YIELD) at coroutine-win32.c:48
>  #2  0x004db18d in coroutine_swap (from=0x1e00, to=0xdcee9a8)
>      at qemu-coroutine.c:31
>  #3  0x00411618 in bdrv_rw_co (bs=<optimized out>, sector_num=<optimized out>,
>      buf=0x2140000 "@", nb_sectors=1, is_write=false) at block.c:1335
>  #4  0x00486e39 in ide_sector_read (s=0x1bbdaa0)
>      at C:/msys/home/User/qemu/hw/ide/core.c:480
>  #5  0x0054e71f in memory_region_iorange_write (iorange=0x1bbcf60, offset=7,
>      width=1, data=32) at C:/msys/home/User/qemu/memory.c:431
>  #6  0x005494e0 in ioport_writeb_thunk (opaque=0x1bbcf60, addr=7680, data=32)
>      at C:/msys/home/User/qemu/ioport.c:211
>  #7  0x005496cf in ioport_write (data=<optimized out>,
>      address=<optimized out>, index=<optimized out>)
>      at C:/msys/home/User/qemu/ioport.c:82
>  #8  cpu_outb (addr=2147340288, val=0 '\000')
>      at C:/msys/home/User/qemu/ioport.c:274
>  #9  0x022c0397 in ?? ()
>  Backtrace stopped: previous frame inner to this frame (corrupt stack?)
>
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