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Re: SIGQUIT reported as SIGSEGV


On 2013-04-30 PM 9:37, Helmut Karlowski wrote:
Daniel R. Grayson, 30.04.2013 14:11:19:

SIGQUIT is erroneously delivered as SIGSEGV in this circumstance:

    $ sleep 1000 &
    [1] 9148
    $ kill -QUIT %1
    $    < press return if necessary here >
    [1]+  Segmentation fault      (core dumped) sleep 1000

It's sleep.exe that crashes, the report is correct.

Stack trace:
Frame     Function  Args
0022AAC8  7C80A115  (00000003, 0022AB2C, 00000000, FFFFFFFF)

--- Process 7188, exception C0000005 at 6102F813
sh-4.1$ addr2line -e /bin/cygwin1.dbg
6102F813
/netrel/src/cygwin-snapshot-20130409-1/winsup/cygwin/exceptions.cc:252

It's long-standing bug during stack backtrace in cygwin. if any frame has used ebp for purposes other than frame pointer. which is mostly the case.
--
Regards.


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