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

[svetljo <galia@st-peter.stw.uni-erlangen.de>]

Heinz J . Mauelshagen wrote:

>On Fri, Oct 05, 2001 at 09:25:56AM +0200, svetljo wrote:
>
>>is gcc-3.0.1 safe, or i should also use "-o0"
>>
>
>Don't have a report for this :-(
>Please try it.
>
it's seems to work

xxscan xxdiplay lvcreate lvremove lvrename lvextend lvreduce work without pb
but i tried yesterday to install 2.4.11-pre2-xfs-cvs lvm-cvs
and vgscan from the initrd segfaults , i can not boot to my LV's with it
probbably it's some other trouble, i'll try with 2.4.11-pre3-xfs
i think it's not relevant but all my VG's are over softRAIDs

>>
>>Heinz J . Mauelshagen wrote:
>>
>>>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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>>>>
>>
>>
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>>
>