Hi,
Thanks for the response - your assumption seems reasonable - I am no
able to use a different malloc library on my system, but I do want to
try and upgrade my sqlite, since I have noticed I am using quite an old
version, and who knows..
I have run into a problem - using the same environment variables as I
did in the old version ( I am upgrading from 3.2.8 to the newest version
of 3.3.17), I am unable to compile succesfully.
Here is the error I get:
attempt to open
/home/lira/toolchain/gnu/3.4.4-wrlinux-1.2/x86-linux2/bin/../../../../wr
linux-1.2/target-libs/gpp/powerpc-wrs-linux-powerpc/lib/crtn.o succeeded
/home/lira/toolchain/gnu/3.4.4-wrlinux-1.2/x86-linux2/bin/../../../../wr
linux-1.2/target-libs/gpp/powerpc-wrs-linux-powerpc/lib/crtn.o
ld.so.1 needed by
/home/lira/toolchain/wrlinux-1.2/target-libs/gpp/powerpc-wrs-linux-power
pc/lib/libpthread.so.0
found ld.so.1 at
/home/lira/toolchain/gnu/3.4.4-wrlinux-1.2/x86-linux2/bin/../../../../wr
linux-1.2/target-libs/gpp/powerpc-wrs-linux-powerpc/lib//ld.so.1
collect2: ld returned 1 exit status
make[1]: *** [sqlite3] Error 1
make[1]: Leaving directory
`/home/rachmel/work/sqlite_new/avaya_build_target'
make: *** [build] Error 2
Any ideas as to what is the problem?
Thanks, Nir.
-----Original Message-----
From: Joe Wilson [mailto:[EMAIL PROTECTED]
Sent: Sunday, June 10, 2007 6:10 PM
To: sqlite-users@sqlite.org
Subject: Re: [sqlite] sqlite 3.2.8 segmentation fault
You're crashing in free(), which means your heap is corrupted.
The cause of the corruption could be from anywhere - and not necessarily
sqlite. It might be the victim of a previously corrupted heap. Try
running your program through a memory checker like valgrind to see what
it turns up.
Also test against the latest version of sqlite, just in case.
If you don't have the time to find the source of the memory corruption,
perhaps this alternative malloc library may allow your program to run:
DieHard, by Emery Berger (of Hoard fame).
http://prisms.cs.umass.edu/emery/index.php?page=diehard
--- "Rachmel, Nir (Nir)" <[EMAIL PROTECTED]> wrote:
> I am running sqlite version 3.2.8, on a windriver linux, on a ppc
> platform.
> It is linked to PHP 5.1.4, where I have scripts that access the
> database (both sets and gets). Recently I have been experimenting with
> simultanious accesses to the sqlite database (meaning mutliple clients
> requesting information from the database while another client is
> commiting data to the database).
>
> After a while, php crashes with the following error printed to the
> syslog:
> *** glibc detected *** double free or corruption (fasttop):
> 0x10796ca8
> ***
>
> Running the test again, with debug symbols produces the following
> backtrace:
>
> 0x0fdde324 in raise () from /lib/libc.so.6
> (gdb) where
> #0 0x0fdde324 in raise () from /lib/libc.so.6
> #1 0x0fddfd8c in abort () from /lib/libc.so.6
> #2 0x0fe14bac in __fsetlocking () from /lib/libc.so.6
> #3 0x0fe14bac in __fsetlocking () from /lib/libc.so.6
> #4 0x0fe14bac in __fsetlocking () from /lib/libc.so.6
> #5 0x0fe14bac in __fsetlocking () from /lib/libc.so.6 .
> .
> .
> Previous frame inner to this frame (corrupt stack?)
>
> We have a special script that re-creates the backtrace, and it looks
> like this:
>
> (gdb) bt_script
> frame #: stack_frame_ptr backchain_ptr LR_save_word
> frame 0: 0xXXXXXXXX: 0xXXXXXXXX $1 = 0xfdde324
> <raise+92>
> frame 1: 0x337f5cf0: 0x337f5d10 $2 = 0xfee2f7c
> <in6addr_any+16688>
> frame 2: 0x337f5d10: 0x337f5e40 $3 = 0xfddfdf8
> <abort+664>
> frame 3: 0x337f5e40: 0x337f5fe0 $4 = 0xfe14bac
> <__libc_fatal>
> frame 4: 0x337f5fe0: 0x337f6040 $5 = 0xfe1c6b4
> <malloc_trim+2348>
> frame 5: 0x337f6040: 0x337f6060 $6 = 0xfe1caac
> <free+192>
> frame 6: 0x337f6060: 0x337f6070 $7 = 0xf7f62dc
> <sqlite3FreeX+24>
> frame 7: 0x337f6070: 0x337f60c0 $8 = 0xf7de980
> <sqlite3OsUnlock+232>
> frame 8: 0x337f60c0: 0x337f60e0 $9 = 0xf7e2478
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