Date: Tue, 17 Aug 2010 15:20:03 GMT From: "Andrey V. Elsukov" <bu7cher@yandex.ru> To: freebsd-geom@FreeBSD.org Subject: Re: bin/149215: [panic] gpart(8): Delete linux's slice via Gpart - get kernel panic Message-ID: <201008171520.o7HFK3nK056558@freefall.freebsd.org>
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The following reply was made to PR bin/149215; it has been noted by GNATS.
From: "Andrey V. Elsukov" <bu7cher@yandex.ru>
To: bug-followup@FreeBSD.org, universite@ukr.net
Cc: Andrew Thompson <thompsa@FreeBSD.org>
Subject: Re: bin/149215: [panic] gpart(8): Delete linux's slice via Gpart
- get kernel panic
Date: Tue, 17 Aug 2010 19:12:46 +0400
Hi,
As I see from `gpart show ad4` output and from screenshot ad4 disk
was part of software raid (partition type '253') and also it was
part of Linux LVM. Also, last messages before panic are:
GEOM_LINUX_LVM: Disk ad4s3 removed from pv0.
GEOM_LINUX_LVM:
I think panic occurs in this code from g_linux_lvm.c:
g_llvm_remove_disk(struct g_llvm_vg *vg, struct g_consumer *cp)
....
if (found) {
G_LLVM_DEBUG(0, "Device %s removed.",
lv->lv_gprov->name);
^^^^^^^^^^^^^^^^^^^^^^^^ - NULL-pointer dereference here
g_orphan_provider(lv->lv_gprov, ENXIO);
lv->lv_gprov = NULL;
}
--
WBR, Andrey V. Elsukov
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