On 26/07/2013 11:32 PM, Ryan Johnson wrote:
On 26/07/2013 10:50 PM, Ken Brown wrote:
On 7/26/2013 8:32 PM, Ryan Johnson wrote:
Hi all,
Running 64-bit cygwin 1.7.22(0.268/5/3), with emacs-nox 24.3-4 inside
mintty 1.2-beta1-1, I keep getting seg faults and "Fatal error 6:
Aborted"
It happens at strange times, invariably during I/O of some kind (either
keyboard input or output from some compilation window); I don't get the
impression it's fork-related. I don't know how to get a backtrace from
emacs, given the way any exception or signal always loses the
"userland"
stack (suggestions welcome).
Anyone else seeing this?
This doesn't really answer your question since I don't use emacs-nox,
but I've been running 64-bit emacs-X11 and finding it very stable. I
typically keep it running for several days at a time.
You say you don't know how to get a backtrace from emacs. I assume
you've installed emacs-debuginfo and run emacs under gdb. Are you
saying you can never get a backtrace after it crashes?
I do have the emacs-debuginfo. I meant that the stack dump didn't have
any emacs frames in it (they were all cygwin1.dll), and my experience
with cygwin/gdb is that once you've taken a signal or exception you
lose the cygwin stack and just see a bunch of threads mucking around
in various low-level Windows dlls.
I have tried attaching gdb to emacs and setting a breakpoint on
abort(), but it didn't catch anything yet. I'm also hampered by gdb
constantly getting confused, breaking partway into emacs, and having
to detach/reattach it. I've started a new thread for that issue.
Here's a new one... I started a compilation, but before it actually
invoked the command it started pegging the CPU. After ^G^G^G, it crashed
with the following:
Auto-save? (y or n) y
0 [main] emacs 5076 C:\cygwin64\bin\emacs-nox.exe: *** fatal
error - Internal error: TP_NUM_W_BUFS too small 2268032 >= 10.
Hangup
The stackdump has the following:
usr/src/debug/cygwin-1.7.22-1/winsup/cygwin/exception.h:65
/usr/src/debug/cygwin-1.7.22-1/winsup/cygwin/dcrt0.cc:1268
/usr/src/debug/cygwin-1.7.22-1/winsup/cygwin/dcrt0.cc:1277
/usr/src/debug/cygwin-1.7.22-1/winsup/cygwin/tls_pbuf.cc:53
/usr/src/debug/cygwin-1.7.22-1/winsup/cygwin/path.cc:614
/usr/src/debug/cygwin-1.7.22-1/winsup/cygwin/syscalls.cc:1894
001801130CB
00000000023
000775DB65E
/usr/src/debug/cygwin-1.7.22-1/winsup/cygwin/miscfuncs.cc:803
/usr/src/debug/emacs-24.3-4/src/alloc.c:2147
/usr/src/debug/emacs-24.3-4/src/fileio.c:5465
/usr/src/debug/emacs-24.3-4/src/keyboard.c:10755
/usr/src/debug/emacs-24.3-4/src/sysdep.c:1582
/usr/src/debug/cygwin-1.7.22-1/winsup/cygwin/exceptions.cc:1453
001801131E1
Thoughts?
Ryan
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