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Re: [linux-lvm] More Segfaults with LVM 1.0.1rc3



Markus,

go without optimization "-O0" rather than "-O2" in LVMs configure stript
*or* with gcc 2.95.2.

On Thu, Oct 04, 2001 at 10:33:43PM +0200, Markus Dobel wrote:
> Hi,
> 
> vgextend, vgreduce and lvextend segfaulted for me today, too. I'm using 
> 
>   gcc version 2.96 20000731 (Red Hat Linux 7.1 2.96-95)
> 
> which I guess is the reason for those problems.
> 
> For vgextend/vgreduce gdb told me, that in vg_extend_reduce "vg_name"
> pointed to 0x1. So i did a little debugging and therefore also
> inserting the line:
> 
> int vg_extend ( char *vg_name, pv_t *pv, vg_t *vg) {
>    printf("VG Name is %s\n",vg_name ); // this one
>    return vg_extend_reduce ( vg_name, pv, vg, VG_EXTEND);
> }
> 
> in vg_extend_reduce.c, the same in vg_reduce(). Without changing
> anything else, vgextend and vgreduce work for me now.
> 
> 
> Similar in lv_extend_reduce.c:
> 
> int lv_extend ( vg_t *vg, lv_t *lv, char *lv_name) {
>    printf("Extending %s\n", lv_name); // added this line.
>    return lv_extend_reduce ( vg, lv, lv_name, LV_EXTEND);
> }
> 
> I don't speak C too fluently, and I don't know if printf() does some
> implicit casting or something or if it's gcc 2.96, but maybe this
> information helps a bit in finding the mistake.
> 
> Regards, Markus
> 
> -- 
> Spiegel-Leser wissen mehr. Fuer ein Semester-Abo!
> http://www.kawo2.rwth-aachen.de/~mdobel/semesterabo.html
> 
> _______________________________________________
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-- 

Regards,
Heinz    -- The LVM Guy --

*** Software bugs are stupid.
    Nevertheless it needs not so stupid people to solve them ***

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Heinz Mauelshagen                                 Sistina Software Inc.
Senior Consultant/Developer                       Am Sonnenhang 11
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