From: Felix Domke <tmbinc@elitedvb.net>
To: linux-lvm@sistina.com
Subject: Re: [linux-lvm] LV only detected when using "lvscan -D" on amd64 kernel
Date: Mon Oct 27 08:55:02 2003 [thread overview]
Message-ID: <3F9D327C.6020102@elitedvb.net> (raw)
In-Reply-To: <20031027120104.K848@sistina.com>
Hi,
>User space parses and passes it via ioctls to the kernel.
>Please look at lvm.h for the ioctls defined and the structures involved.
>Grep the LVM1 library source in tools/lib/ for "ioctl" to get you started.
>
>
Where exactly is the LV information passed to the kernel? is it
"LV_CREATE"?
The kernel seems to don't know the LV, the LV_STATUS_BYINDEX on the
"/dev/fast/group" returns "No such device or address" (ENXIO) for each
index, including 0, which should be the LV in question.
It looks as "lvm_do_lv_status_byindex" in the kernel returns -ENXIO
because vg_ptr->lv[lv_status_byindex_req.lv_index] is zero. Where is the
point where this array is written? I only found LV_CREATE, but that's
only called in vgimport, vgmerge and lvcreate, so it looks as there is
another place.
Can you point me in the direction?
Felix
next prev parent reply other threads:[~2003-10-27 8:55 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-10-24 11:10 [linux-lvm] LV only detected when using "lvscan -D" on amd64 kernel Felix Domke
2003-10-25 2:09 ` Heinz J . Mauelshagen
2003-10-26 11:54 ` Felix Domke
2003-10-27 5:00 ` Heinz J . Mauelshagen
2003-10-27 8:55 ` Felix Domke [this message]
2003-10-27 9:09 ` Heinz J . Mauelshagen
2003-10-27 9:37 ` Felix Domke
2003-10-28 3:36 ` Heinz J . Mauelshagen
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