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Re: psql crashes with snapshot - after rebase


On 2/19/2013 6:51 AM, marco atzeri wrote:

From a DOS prompt:


psql --version
1 [main] psql 3196 exception::handle: Exception: STATUS_ACCESS_VIOLATION
626 [main] psql 3196 open_stackdumpfile: Dumping stack trace to
psql.exe.stackdump

And from a bash prompt:

$ psql --version
Segmentation fault



confirmed, I see the same.


strangely I noticed that psql of 9.2.2-1 does not suffer this problem,
and it seems due to cygpq.dll (rebase address ?).
I will investigate later

Marco


it seems that rebasing cygpq.dll causes a stackdump on the snapshot but not on 1.7.17

At first glance the reloc table after rebasing looks correct ;
the removed portion is for the removed sections.

I uploaded the 9.2.3-1 version of cygpq.dll and the "objdump -x" outcome
at several stages here:

http://matzeri.altervista.org/works/rebase/
http://matzeri.altervista.org/cygwin-1.7/postgresql/

If someone want to check and guess what could be wrong


$ cat psql.exe.stackdump
Exception: STATUS_ACCESS_VIOLATION at eip=F2910000
eax=F2910000 ebx=00000000 ecx=77C6389A edx=0047017C esi=61006C50 edi=0028CD78
ebp=0028AC88 esp=0028AC4C program=E:\cygwin\bin\psql.exe, pid 8024, thread main
cs=0023 ds=002B es=002B fs=0053 gs=002B ss=002B
Stack trace:
Frame Function Args
0028AC88 F2910000 (61273B28, 00000000, 00000000, 00000000)
0028ACF8 61006CF5 (00000000, 0028CD78, 61006C50, 00000000)
End of stack trace


marco@MARCOATZERI /usr/bin
$ uname -a
CYGWIN_NT-6.1-WOW64 MARCOATZERI 1.7.18s(0.263/5/3) 20130131 05:33:37 i686 Cygwin



Marco



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