[Bug 15206] Trouble with symbolic stack dumps and Chromium

wine-bugs at winehq.org wine-bugs at winehq.org
Tue Sep 9 17:50:58 CDT 2008


--- Comment #5 from Dan Kegel <dank at kegel.com>  2008-09-09 17:50:58 ---
Bug came right back, still overflowed the twice as big arena.
Changed it to 1MB instead of 64K.
Now it's been running for ten minutes trying to work its way past
150K+ lines of the sort
fixme:dbghelp_msc:codeview_snarf Unsupported symbol id 1012
at 99% cpu.   Guess I'm hitting quadratic behavior?  The .pdb
files I'm using are built from scratch here and are twice as
big as the ones on the nightly builder.

oprofile says:

samples  %        image name               app name                 symbol name
28077516 61.2073  dbghelp.dll.so           dbghelp.dll.so          
  28077516 100.000  dbghelp.dll.so           dbghelp.dll.so          
enum_modW64_64 [self]
8256676  17.9991  dbghelp.dll.so           dbghelp.dll.so           module_new
  8256676  100.000  dbghelp.dll.so           dbghelp.dll.so          
module_new [self]
1341044   2.9234  no-vmlinux               no-vmlinux               (no
  1341044  100.000  no-vmlinux               no-vmlinux               (no
symbols) [self]

Not sure I trust oprofile on wine yet, but I guess there's a chance this
is telling us where the .pdb loading bottleneck is...?

winedbg is at 15 minutes of cpu time, no backtrace yet, no end in sight...

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